2024-03-28T23:49:55Zhttps://iris.polito.it/oai/requestoai:iris.polito.it:11583/29762072024-03-17T17:20:40Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-02-21T07:37:29Z
urn:hdl:11583/2976207
Use of machine learning tools and NIR spectra to estimate residual moisture in freeze-dried products
Massei, Ambra
Falco, Nunzia
Fissore, Davide
Massei, Ambra
Falco, Nunzia
Fissore, Davide
Residual Moisture (RM) in freeze-dried products is one of the most important critical quality attributes (CQAs) to monitor, since it affects the stability of the active pharmaceutical ingredient (API). The standard experimental method adopted for the measurements of RM is the Karl-Fischer (KF) titration, that is a destructive and time-consuming technique. Therefore, Near-Infrared (NIR) spectroscopy was widely investigated in the last decades as an alternative tool to quantify the RM. In the present paper, a novel method was developed based on NIR spectroscopy combined with machine learning tools for the prediction of RM in freeze-dried products. Two different types of models were used: a linear regression model and a neural network based one. The architecture of the neural network was chosen so as to optimize the prediction of the residual moisture, by minimizing the root mean square error with the dataset used in the learning step. Moreover, the parity plots and the absolute error plots were reported, allowing a visual evaluation of the results. Different factors were considered when developing the model, namely the range of wavelengths considered, the shape of the spectra and the type of model. The possibility of developing the model using a smaller dataset, obtained with just one product, that could be then applied to a wider range of products was investigated, as well as the performance of a model developed for a dataset encompassing several products. Different formulations were analyzed: the main part of the dataset was characterized by a different percentage of sucrose in solution (3%, 6% and 9% specifically); a smaller part was made up of sucrose-arginine mixtures at different percentages and only one formulation was characterized by another excipient, the trehalose. The product-specific model for the 6% sucrose mixture was found consistent for the prediction of RM in other sucrose containing mixtures and in the one containing trehalose, while failed for the dataset with higher percentage of arginine. Therefore, a global model was developed by including a certain percentage of all the available dataset in the calibration phase. Results presented and discussed in this paper demonstrate the higher accuracy and robustness of the machine learning based model with respect to the linear models.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2976207
10.1016/j.saa.2023.122485
2-s2.0-85148323564
https://www.sciencedirect.com/science/article/pii/S1386142523001701
eng
SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
info:eu-repo/semantics/openAccess
STAMPA
elsevier
oai:iris.polito.it:11583/29845042024-03-19T19:31:12Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-01-15T15:48:28Z
urn:hdl:11583/2984504
Effect of recycled powder and gear profile into the functionality of additive manufacturing polymer gears
Calignano, Flaviana
Bove, Alessandro
Mercurio, Vincenza
Marchiandi, Giovanni
Calignano, Flaviana
Bove, Alessandro
Mercurio, Vincenza
Marchiandi, Giovanni
Purpose
Polymer laser powder bed fusion (PBF-LB/P) is an additive manufacturing technology that is sustainable due to the possibility of recycling the powder multiple times and allowing the fabrication of gears without the aid of support structures and subsequent assembly. However, there are constraints in the process that negatively affect its adoption compared to other additive technologies such as material extrusion to produce gears. This study aims to demonstrate that it is possible to overcome the problems due to the physics of the process to produce accurate mechanism.
Design/methodology/approach
Technological aspects such as orientation, wheel-shaft thicknesses and degree of powder recycling were examined. Furthermore, the evolving tooth profile was considered as a design parameter to provide a manufacturability map of gear-based mechanisms.
Findings
Results show that there are some differences in the functioning of the gear depending on the type of powder used, 100% virgin or 50% virgin and 50% recycled for five cycles. The application of a groove on a gear produced with 100% virgin powder allows the mechanism to be easily unlocked regardless of the orientation and wheel-shaft thicknesses. The application of a specific evolutionary profile independent of the diameter of the reference circle on vertically oriented gears guarantees rotation continuity while preserving the functionality of the assembled mechanism.
Originality/value
In the literature, there are various studies on material aging and reuse in the PBF-LB/P process, mainly focused on the powder deterioration mechanism, powder fluidity, microstructure and mechanical properties of the parts and process parameters. This study, instead, was focused on the functioning of gears, which represent one of the applications in which this technology can have great success, by analyzing the two main effects that can compromise it: recycled powder and vertical orientation during construction.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2984504
10.1108/RPJ-06-2023-0199
2-s2.0-85178885828
https://www.emerald.com/insight/content/doi/10.1108/RPJ-06-2023-0199/full/html
RAPID PROTOTYPING JOURNAL
info:eu-repo/semantics/openAccess
ELETTRONICO
Emerald Publishing Limited
oai:iris.polito.it:11583/29867522024-03-23T18:00:58Z
urn:hdl:11583/2986752
On the role of finite grid extent in SOLPS-ITER edge plasma simulations for JET H-mode discharges with metallic wall
Wiesen, S.
Brezinsek, S.
Bonnin, X.
Delabie, E.
Frassinetti, L.
Groth, M.
Guillemaut, C.
Harrison, J.
Harting, D.
Henderson, S.
Huber, A.
Kruezi, U.
Pitts, R. A.
Wischmeier, M.
Subba, F.
Wiesen, S.
Brezinsek, S.
Bonnin, X.
Delabie, E.
Frassinetti, L.
Groth, M.
Guillemaut, C.
Harrison, J.
Harting, D.
Henderson, S.
Huber, A.
Kruezi, U.
Pitts, R. A.
Wischmeier, M.
Subba, F.
The impact of the finite grid size in SOLPS-ITER edge plasma simulations is assessed for JET H-mode discharges with a metal wall. For a semi-horizontal divertor configuration it is shown that the separatrix density is at least 30% higher when a narrow scrape-off layer (SOL) grid width is chosen in SOLPS-ITER compared to the case for which the SOL grid width is maximised. The density increase is caused by kinetic neutrals being not confined inside the divertor region because of the reduced extent of the plasma grid. In this case, an enhanced level of reflections of energetic neutrals at the low-field side (LFS) metal divertor wall is observed. This leads to a shift of the ionisation source further upstream which must be accounted for as a numerical artefact. An overestimate in the cooling at the divertor entrance is observed in this case, identified by a reduced heat flux decay parameters lambda(div)(q). Otherwise and further upstream the mid-plane heat decay length lambda(q) parameter is not affected by any change in divertor dissipation. This confirms the assumptions made for the ITER divertor design studies, i.e. that lambda(q) upstream is essentially set by the assumptions for the ratio radial to parallel heat conductivity. It is also shown that even for attached conditions the decay length relations lambda(ne)>lambda(Te)>lambda(q) hold in the near-SOL upstream. Thus for interpretative edge plasma simulations one must take the (experimental) value of lambda(ne) into account, rather than lambda(q), as the former actually defines the required minimum upstream SOL grid extent.
2018
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986752
10.1016/j.nme.2018.10.013
2-s2.0-85056205845
eng
NUCLEAR MATERIALS AND ENERGY
none
ELSEVIER
oai:iris.polito.it:11583/29721472024-03-08T07:53:52Zcom_11583_2614429com_11583_2614425col_11583_2614406
2023-01-30T18:35:48Z
urn:hdl:11583/2972147
Input-unknown estimation for nonlinear wave energy converters: A tracking control approach
Pasta, Edoardo
Papini, Guglielmo
Carapellese, Fabio
Faedo, Nicolas
Mattiazzo, Giuliana
Pasta, Edoardo
Papini, Guglielmo
Carapellese, Fabio
Faedo, Nicola
Mattiazzo, Giuliana
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2972147
eng
Proceedings of the 16th International Conference on Motion and Vibration Control (MoViC 2022)
16th International Conference on Motion and Vibration Control (MoViC 2022)
info:eu-repo/semantics/openAccess
IEEE
oai:iris.polito.it:11583/29840112024-03-19T20:03:19Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-02-09T13:41:56Z
urn:hdl:11583/2984011
Balancing power production and coastal protection: A bi-objective analysis of Wave Energy Converters
Beatrice Battisti
Giuseppe Giorgi
Gael Verao Fernandez
Battisti, Beatrice
Giorgi, Giuseppe
Verao Fernandez, Gael
Wave Energy Converters (WECs) have the potential to serve dual purposes, generating power and protecting coastlines. Although traditionally the focus has been on maximizing power generation for cost-effectiveness, growing impacts of climate change have made coastal protection increasingly imperative. However, power production and coastal protection have been addressed separately, missing potential synergies. This paper addresses this gap by conducting a bi-objective analysis to investigate the interactions between power extraction and wave attenuation for a single Oscillating Surge Wave Converter (OSWC) and WEC farms of three and five units.
A linear Power Take-Off (PTO) system, with passive and reactive control strategies, is examined. By varying the PTO parameters, we assess their influence on both power production and wave field attenuation. Results demonstrate a significant impact of the PTO choice on wave attenuation, with a similar trend observed for power production. This finding highlights the potential for a trade-off, where maximizing wave attenuation may come at the cost of moderate energy output. Furthermore, the interactions observed within the WEC farms enhance this trend.
The study emphasizes the importance of a holistic approach to WEC technology development, promoting sustainable and resilient harnessing of wave energy resources, considering both power generation and coastal protection.
2024
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2984011
10.1016/j.renene.2023.119702
2-s2.0-85177862266
https://www.sciencedirect.com/science/article/pii/S0960148123016178?via=ihub
eng
RENEWABLE ENERGY
info:eu-repo/semantics/openAccess
Elsevier
oai:iris.polito.it:11583/29868022024-03-15T09:12:15Z
urn:hdl:11583/2986802
Gyrokinetic analysis and simulation of pedestals to identify the culprits for energy losses using ‘fingerprints’
Kotschenreuther, M.
Liu, X.
Hatch, D. R.
Mahajan, S.
Zheng, L.
Diallo, A.
Groebner, R.
Hillesheim, J. C.
Maggi, C. F.
Giroud, C.
Koechl, F.
Parail, V.
Saarelma, S.
Solano, E. R.
Chankin, A.
Subba, F.
Kotschenreuther, M.
Liu, X.
Hatch, D. R.
Mahajan, S.
Zheng, L.
Diallo, A.
Groebner, R.
Hillesheim, J. C.
Maggi, C. F.
Giroud, C.
Koechl, F.
Parail, V.
Saarelma, S.
Solano, E. R.
Chankin, A.
Subba, F.
Fusion performance in tokamaks hinges critically on the efficacy of the edge transport barrier (ETB) in suppressing energy losses. The new concept of 'fingerprints' is introduced to identify the instabilities that cause transport losses in the ETBs of many of today's experiments, from among widely posited candidates. Analysis of the gyrokinetic-Maxwell equations and gyrokinetic simulations of experiments reveals that each mode type produces characteristic ratios of transport in the various channels: density, heat, and impurities. This, together with experimental observations of transport in some channel or of the relative size of the driving sources of channels, can identify or determine the dominant modes causing energy transport. In multiple H-mode cases with edge-localized modes that are examined, these fingerprints indicate that magnetohydrodynamic (MHD)-like modes are apparently not the dominant agent of energy transport; rather, this role is played by micro-tearing modes (MTMs) and electron temperature gradient (ETG) modes, and in addition, possibly by ion temperature gradient/ trapped electron modes (ITG/TEM) on JET (Joint European 'Torus). MHD-like modes may dominate the electron particle losses. Fluctuation frequency can also be an important means of identification, and is often closely related to the transport fingerprint. The analytical arguments unify and explain previously disparate experimental observations on multiple devices, including DIII-D, JET, and ASDEX-U. Detailed simulations of two DIII-D ETBs also demonstrate and corroborate this.
2019
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986802
10.1088/1741-4326/ab1fa2
2-s2.0-85070889526
eng
NUCLEAR FUSION
none
IOP PUBLISHING LTD
oai:iris.polito.it:11583/29800282024-03-09T07:52:39Zcom_11583_2614427com_11583_2614425col_11583_2614390
2023-07-11T12:43:19Z
urn:hdl:11583/2980028
Molteplici registri comunicativi dell’evento bellico nella narrazione de Le Cento Città d’Italia divenute Le Cento Città d’Italia Illustrate
Ursula Zich
Amore R., Pascariello M. I., Verapalumbo, A.
Zich, Ursula
Il contributo analizza la struttura narrativa dei luoghi teatro di guerra e di ricostruzione ne Le Cento Città Illustrate (1924-1929) evidenziando l’apporto e la declinazione delle molteplici forme di rappresentazione utilizzate nel corpus documentario. Collana di monografie illustrate nata come rinnovo delle Cento Città (1887-1901), vede una trasformazione del contenuto e del linguaggio per far conoscere agli italiani l’Italia ferita dalla Grande Guerra che entra nei testi e nelle immagini imponendo nuovi registri comunicativi | This article analyzes how the places affected by World War I have been described in Le Cento Città d’Italia Illustrate (1924-1929). We can appreciate the multiple and different representation methods used in the opera. This series of illustrated monographs renewal of Le Cento Città d’Italia (1887-1902), highlights a transformation of both language and contents allowing Italians to know war-thorn Italy with new visual and narrative ways.
2023
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2980028
info:eu-repo/semantics/altIdentifier/isbn/9788868871765
https://www.iconografiacittaeuropea.unina.it/cms/preprint/
ita
Città e guerra. Difese, distruzioni, permanenze delle memorie e dell'immagine urbana. Tomo II. Tracce e patrimoni
info:eu-repo/semantics/openAccess
ELETTRONICO
FedOA - Federico II University Press
oai:iris.polito.it:11583/29837102024-02-24T04:07:21Zcom_11583_2614433com_11583_2614425col_11583_2614423
2023-11-17T08:07:51Z
urn:hdl:11583/2983710
An Arduino-controlled bioreactor for stimulation and in situ pH monitoring of cell cultures with Organic Thin Film Transistors
CACOCCIOLA, NICOLO'
COCUZZA, MATTEO
PIRRI, Candido
Cacocciola, Nicolo'
Settore FIS/03 - Fisica della Materia
L'abstract è presente nell'allegato / the abstract is in the attachment
2023-10-20
info:eu-repo/semantics/doctoralThesis
https://hdl.handle.net/11583/2983710
eng
info:eu-repo/semantics/openAccess
Politecnico di Torino
oai:iris.polito.it:11583/29721892024-03-08T07:18:47Zcom_11583_2614427com_11583_2614425col_11583_2614390
2022-10-11T07:22:27Z
urn:hdl:11583/2972189
“Tutto al mare deve essere coloratissimo”... e anonimo? / “Everything by the sea must be colourful”... and anonymous?
Dellapiana, Elena
Concari C., Marcatti R., Licitra S.
Dellapiana, Elena
Coinvolto nella Mediterraneo-mania degli anni Trenta del Novecento, Gio Ponti progetta, d'altra parte, oggetti per la tavola raffinati e autoriali, che negano alcuni degli assunti sul colorato mondo anonimo frequentato e narrato. Il saggio evidenzia continuità e discontinuità del progetto di attrezzature per la tavola
2022
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2972189
info:eu-repo/semantics/altIdentifier/isbn/9788885753471
eng
ita
A tavola con Gio Ponti. Gli angeli apparecchiano
info:eu-repo/semantics/closedAccess
STAMPA
Sfera Edizioni
oai:iris.polito.it:11583/29709442023-06-19T22:48:24Zoai:iris.polito.it:11583/29868592024-03-22T01:28:52Z
urn:hdl:11583/2986859
Tritium analysis of divertor tiles used in JET ITER-like wall campaigns by means of β-ray induced x-ray spectrometry
Hatano, Y
Yumizuru, K
Koivuranta, S
Likonen, J
Hara, M
Matsuyama, M
Masuzaki, S
Tokitani, M
Asakura, N
Isobe, K
Hayashi, T
Baron-Wiechec, A
Widdowson, A
Subba, F.
Hatano, Y
Yumizuru, K
Koivuranta, S
Likonen, J
Hara, M
Matsuyama, M
Masuzaki, S
Tokitani, M
Asakura, N
Isobe, K
Hayashi, T
Baron-Wiechec, A
Widdowson, A
Subba, F.
Energy spectra of beta-ray induced x-rays from divertor tiles used in ITER-like wall campaigns of the Joint European Torus were measured to examine tritium (T) penetration into tungsten (W) layers. The penetration depth of T evaluated from the intensity ratio of W(La) x-rays to W(M alpha) x-rays showed clear correlation with poloidal position; the penetration depth at the upper divertor region reached several micrometers, while that at the lower divertor region was less than 500 nm. The deep penetration at the upper part was ascribed to the implantation of high energy T produced by DD fusion reactions. The poloidal distribution of total x-ray intensity indicated higher T retention in the inboard side than the outboard side of the divertor region.
2017
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986859
10.1088/1402-4896/aa8931
2-s2.0-85030863791
eng
PHYSICA SCRIPTA
none
IOP PUBLISHING LTD
oai:iris.polito.it:11583/29712532024-03-18T20:28:22Zcom_11583_2614429com_11583_2614425col_11583_2614405
2022-10-26T21:13:17Z
urn:hdl:11583/2971253
In-wheel and on-board motors in BEV: lateral and vertical performance comparison
de Carvalho Pinheiro, Henrique
Messana, Alessandro
Carello, Massimiliana
de Carvalho Pinheiro, Henrique
Messana, Alessandro
Carello, Massimiliana
Following the electrification trends in the automotive sector, many powertrain architectures are being studied, and among them a very interesting possibility – not yet fully developed – regards the use of in-wheel motors. This kind of electric machine positioned inside the wheel rims grants the vehicles great design freedom and opens numerous possibilities in terms of vehicle control, however some issues regarding handling and comfort are raised with the increase of the unsprung mass. This paper proposes a comprehensive study, combining the electric modelling of the motors, inverter, and battery using Simulink and its co-simulation with multibody simulation in Adams/CAR, in such a way that a full electromechanical coupling is achieved, and a full range of dynamic phenomena can be inquired both for an in-wheel and an onboard EV setup. The paper focuses on lateral and vertical performance, since they represent the main controversies in the adoption of in-wheel motors, and promising results are obtained.
2022
info:eu-repo/semantics/conferenceObject
http://hdl.handle.net/11583/2971253
10.1109/EEEIC/ICPSEurope54979.2022.9854774
2-s2.0-85138007347
info:eu-repo/semantics/altIdentifier/isbn/978-1-6654-8537-1
https://ieeexplore.ieee.org/document/9854774
eng
IEEE Xplore
2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
info:eu-repo/semantics/openAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29786082024-03-22T18:47:53Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-05-19T15:26:19Z
urn:hdl:11583/2978608
Carbon Intensity of Passenger Transport Modes: A Review of Emission Factors, Their Variability and the Main Drivers
Noussan, M
Campisi, E
Jarre, M
Noussan, M
Campisi, E
Jarre, M
The transport sector is responsible for a significant amount of global carbon emissions, and several policies are being implemented at different levels to reduce its impact. To properly assess the effectiveness of planned measures, analysts often rely on average emission factors for different transport modes. However, average values often hide significant variability that stems from factors along the entire supply chain of transport modes. This review presents a comprehensive overview of research on this topic, comparing emission factors for different passenger transport modes and discussing the main drivers and parameters that affect their variability. The results are useful for researchers and policymakers to properly understand the reliability of carbon intensity indicators when evaluating the impact and effectiveness of sustainable transport policies.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2978608
10.3390/su141710652
2-s2.0-85137884382
https://www.mdpi.com/2071-1050/14/17/10652
eng
SUSTAINABILITY
info:eu-repo/semantics/openAccess
MDPI
oai:iris.polito.it:11583/29840512024-03-23T01:01:57Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-11-29T11:19:51Z
urn:hdl:11583/2984051
The Influence of Nucleus Mechanics in Modelling Adhesion-independent Cell Migration in Structured and Confined Environments
Giverso, Chiara
Jankowiak, Gaspard
Preziosi, Luigi
Schmeiser, Christian
Giverso, Chiara
Jankowiak, Gaspard
Preziosi, Luigi
Schmeiser, Christian
: Recent biological experiments (Lämmermann et al. in Nature 453(7191):51-55, 2008; Reversat et al. in Nature 7813:582-585, 2020; Balzer et al. in ASEB J Off Publ Fed Am Soc Exp Biol 26(10):4045-4056, 2012) have shown that certain types of cells are able to move in structured and confined environments even without the activation of focal adhesion. Focusing on this particular phenomenon and based on previous works (Jankowiak et al. in Math Models Methods Appl Sci 30(03):513-537, 2020), we derive a novel two-dimensional mechanical model, which relies on the following physical ingredients: the asymmetrical renewal of the actin cortex supporting the membrane, resulting in a backward flow of material; the mechanical description of the nuclear membrane and the inner nuclear material; the microtubule network guiding nucleus location; the contact interactions between the cell and the external environment. The resulting fourth order system of partial differential equations is then solved numerically to conduct a study of the qualitative effects of the model parameters, mainly those governing the mechanical properties of the nucleus and the geometry of the confining structure. Coherently with biological observations, we find that cells characterized by a stiff nucleus are unable to migrate in channels that can be crossed by cells with a softer nucleus. Regarding the geometry, cell velocity and ability to migrate are influenced by the width of the channel and the wavelength of the external structure. Even though still preliminary, these results may be potentially useful in determining the physical limit of cell migration in confined environments and in designing scaffolds for tissue engineering.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2984051
10.1007/s11538-023-01187-8
2-s2.0-85168735998
https://link.springer.com/article/10.1007/s11538-023-01187-8
eng
BULLETIN OF MATHEMATICAL BIOLOGY
info:eu-repo/semantics/openAccess
Springer
oai:iris.polito.it:11583/29861492024-03-05T10:46:30Zcom_11583_2614433com_11583_2614425col_11583_2614424
2024-03-05T10:46:30Z
urn:hdl:11583/2986149
Pell Equation - Theory and applications to cryptography
Simone Dutto
Dutto, Simone
The Pell equation $x^2 − d y^2 = 1$ is a classical topic in number theory. There are well known methods for solving this equation, but there are still several important issues. One of the most interesting from the point of view of cryptographic applications is the study of its solutions over a generic field, in which case new interesting open problems arise. This work focuses on studying the theoretical and practical potential of the Pell equation in this context. Firstly, the required theoretical results from the state of the art are collected using a new unique and simple notation. This allows to obtain easily and elegantly new properties also for the generalization of the Pell equation in the cubic case. Then, all the theoretical results are adopted to formulate new public–key encryption and digital signature schemes with security based on the integer factorization problem or on the discrete logarithm problem, namely new RSA–like and ElGamal cryptosystems, and new Digital Signature Algorithms. The obtained cryptosystems are compared in terms of security, data–size and performance with the classical alternatives, and the results are very interesting especially in the case of the quadratic Pell equation. Finally, the properties of the Pell equation are exploited for defining new powerful probabilistic primality tests, related to the Lucas test included in the widely used Baillie–PSW test. In particular, the new primality tests are equipped with adaptations of the Selfridge method for choosing the parameters, resulting in very powerful tests.
2022
info:eu-repo/semantics/doctoralThesis
https://hdl.handle.net/11583/2986149
eng
info:eu-repo/semantics/openAccess
oai:iris.polito.it:11583/29716052024-03-07T22:22:47Zcom_11583_2614429com_11583_2614425col_11583_2614406
2023-08-02T08:51:23Z
urn:hdl:11583/2971605
Associations of black carbon with lung function in COPD patients
Ornella Salimbene
Ivano Salimbene
M. Zanetti
M. Ravina
D. Panepinto
Salimbene, Ornella
Salimbene, Ivano
Zanetti, M.
Ravina, M.
Panepinto, D.
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2971605
10.1183/13993003.congress-2022.2026
https://erj.ersjournals.com/content/60/suppl_66/2026
eng
EUROPEAN RESPIRATORY JOURNAL SUPPLEMENT
Book of Abstract
European Respiratory Congress
info:eu-repo/semantics/openAccess
ELETTRONICO
European Respiratory Society
oai:iris.polito.it:11583/29786602023-06-29T07:02:41Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-05-23T07:23:06Z
urn:hdl:11583/2978660
Integrating Aerial Base Stations for sustainable urban mobile networks
Meo, M
Renga, D
Scarpa, F
Meo, M
Renga, D
Scarpa, F
The extensive densification of mobile networks is increasing the network energy consumption and leading to remarkable economical and sustainability concerns. At the same time, regulatory and physical constraints, especially in urban environments, may limit the network expansion and the free installation of Base Stations (BSs). In this context, High Altitude Platform Stations (HAPSs) are emerging as a promising solution to host aerial BSs that can provide additional capacity over a wide geographical area, to offload the on-ground mobile network and support a sustainable transition towards the 6G era. This paper investigates the potential of HAPS offloading to reduce the energy demand from the grid and the operational cost of mobile networks. Our results highlight the effectiveness of HAPS offloading in reducing the size of the RE supply that is required to achieve grid energy reduction on the terrestrial network, thus enhancing the feasibility of a sustainable evolution towards 6G networks. Different allocation strategies are designed and analyzed under several configuration settings, to dynamically adapt the HAPS capacity to the traffic variability in space and over time. A fine tuning of the strategy settings is proved effective in trading off physical constraints, operational cost, sustainability goals, and Quality of Service.
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2978660
10.1109/GLOBECOM48099.2022.10001387
2-s2.0-85146955890
info:eu-repo/semantics/altIdentifier/isbn/978-1-6654-3540-6
https://ieeexplore.ieee.org/document/10001387
eng
Global Communications Conference
2022 IEEE Global Communications Conference
info:eu-repo/semantics/openAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29848512024-03-09T08:48:22Zcom_11583_2614429com_11583_2614425col_11583_2614406
2024-01-10T11:20:53Z
urn:hdl:11583/2984851
Riconoscere un’infrastruttura urbana in transizione
Daniele Campobenedetto
Caterina Barioglio
Campobenedetto, Daniele
Barioglio, Caterina
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2984851
info:eu-repo/semantics/altIdentifier/isbn/979-12-80379-01-6
https://progettazionearchitettonica.eu/attivita/ix-forum-proarch-cagliari-17-18-19-novembre-2022/
ita
Transizioni. L’avvenire della didattica e della ricerca per il progetto di architettura IX Forum ProArch. Book of Abstracts
Transizioni. L’avvenire della didattica e della ricerca per il progetto di architettura IX Forum ProArch
none
ELETTRONICO
ProArch
oai:iris.polito.it:11583/29734392023-07-25T23:10:06Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-12-16T11:31:07Z
urn:hdl:11583/2973439
Comparative analysis of permissioned blockchain frameworks for industrial applications
Vittorio Capocasale
Danilo Gotta
Guido Perboli
Capocasale, Vittorio
Gotta, Danilo
Perboli, Guido
Blockchain is a technology that creates trust among non-trusting parties, without relying on any intermediary. Consequently, it has attracted the interest of companies operating in a multitude of sectors. However, due to the number of different blockchain solutions that have emerged in the last few years and their rapid changes, it is challenging for such companies to orient their technological decisions. This paper presents a comparative analysis of the key dimensions—namely, governance, maturity, support, latency, privacy, interoperability, flexibility, efficiency, resiliency, and scalability—of some of the most-used permissioned blockchain platforms. Moreover, we present the results of a performance evaluation considering the following frameworks: Hyperledger Fabric 2.2, Hyperledger Sawtooth 1.2, and ConsenSys Quorum 21.1 (with both the GoQuorum client and the Hyperledger Besu client). The platforms were tested under similar conditions, and official releases were used, such that our findings provide a reference for companies establishing their technological orientation.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2973439
10.1016/j.bcra.2022.100113
2-s2.0-85148099124
https://www.sciencedirect.com/science/article/pii/S2096720922000549
eng
BLOCKCHAIN: RESEARCH AND APPLICATIONS
info:eu-repo/semantics/openAccess
STAMPA
Elsevier
oai:iris.polito.it:11583/29812512024-03-21T23:24:58Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-09-11T13:05:18Z
urn:hdl:11583/2981251
Landscape in Transition. The Agency of Time in Understanding and Designing the Landscapes of the Anthropocene
G. Lobosco
L. Tinti
Lobosco, G.
Tinti, L.
This contribution examines the representation of landscape temporal scale as a driver for landscape design and planning, questioning the univocal relationship between human and environmental processes, both from an aesthetic and procedural point of view. The aim of controlling and measuring the physical space by representing it has progressively evolved into an attempt to narrate the dynamic, ecological and social interactions that characterize its change in order to aesthetically penetrate the reality of objects that ontologically withdraw from us. Design directions can be developed from the quantification and representation of environmental time-based processes and directed towards future-oriented landscape transformations strategies and imagery. Among these perspectives, this essay interweaves the concepts of time and space, exploring how this merging represents a prerequisite for landscape designers, and a necessary exercise for students, in order to critically address design practices within the context of landscapes in transition.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2981251
10.6092/issn.2612-0496/15320
2-s2.0-85162194009
https://cpcl.unibo.it/article/view/15320
eng
EUROPEAN JOURNAL OF CREATIVE PRACTICES IN CITIES AND LANDSCAPES
info:eu-repo/semantics/openAccess
ELETTRONICO
Alma Mater Studiorum – Università di Bologna, Technical University Delft
oai:iris.polito.it:11583/29838392024-03-14T01:40:24Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-11-30T09:28:19Z
urn:hdl:11583/2983839
Wearable Data Generation Using Time-Series Generative Adversarial Networks for Hydration Monitoring
Sabry, Farida
Labda, Wadha
Eltaras, Tamer
Hamza, Fatima
Alzoubi, Khawla
Malluhi, Qutaibah
Sabry, Farida
Labda, Wadha
Eltaras, Tamer
Hamza, Fatima
Alzoubi, Khawla
Malluhi, Qutaibah
Collection of biosignals data from wearable devices for machine learning tasks can sometimes be expensive and time-consuming and may violate privacy policies and regulations. Successful and accurate generation of these signals can help in many wearable devices applications as well as overcoming the privacy concerns accompanied with healthcare data. Generative adversarial networks (GANs) have been used successfully in generating images in data-limited situations. Using GANs for generating other types of data has been actively researched in the last few years. In this paper, we investigate the possibility of using a time-series GAN (TimeGAN) to generate wearable devices data for a hydration monitoring task to predict the last drinking time of a user. Challenges encountered in the case of biosignals generation and state-of-the-art methods for evaluation of the generated signals are discussed. Results have shown the applicability of using TimeGAN for this task based on quantitative and visual qualitative metrics. Limitations on the quality of the generated signals were highlighted with suggesting ways for improvement.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2983839
10.5220/0011757200003414
info:eu-repo/semantics/altIdentifier/isbn/978-989-758-631-6
https://www.scitepress.org/PublishedPapers/2023/117572/
eng
Proceedings of the16th International Joint Conferenceon Biomedical Engineering Systems and Technologies (BIOSTEC 2023)
BIOSTEC 2023
info:eu-repo/semantics/openAccess
Scitepress
oai:iris.polito.it:11583/29772952024-03-19T22:59:59Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-03-23T13:49:18Z
urn:hdl:11583/2977295
Antimicrobial and pro-angiogenic properties of soluble and nanoparticle-immobilized LL37 peptides
Comune, Michela
Rai, Akhilesh
Palma, Paulo
Tonda-Turo, Chiara
Ferreira, Lino
Comune, Michela
Rai, Akhilesh
Palma, Paulo
Tonda-Turo, Chiara
Ferreira, Lino
Antimicrobial peptides (AMPs), such as LL37 peptides, may be immobilized on the surface of medical devices to render them with antimicrobial and angiogenic properties. However, little is known about LL37 properties after immobilization. Here, we have studied the antimicrobial and pro-angiogenic activity of soluble and immobilized LL37 peptides (conjugated to gold nanoparticles). Both soluble and immobilized LL37 peptides have potent antimicrobial activity against Gram-positive and Gram-negative bacteria in the presence of 10% human serum (HS). However, the immobilized LL37 peptides showed less cytotoxicity to endothelial cells (ECs) at a concentration that was able to kill bacteria. Interestingly, although both soluble and immobilized LL37 peptides showed pro-angiogenic activities in Matrigel and chorioallantoic membrane (CAM) assays, they induce different signalling pathways in ECs. The results described here highlight the importance of investigating the properties of immobilized AMPs that might act as a new entity.
2021
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2977295
10.1039/d1bm01034d
2-s2.0-85121053251
eng
BIOMATERIALS SCIENCE
none
ROYAL SOC CHEMISTRY
oai:iris.polito.it:11583/29704812024-03-08T07:38:42Zcom_11583_2614429com_11583_2614425col_11583_2614405
2022-10-24T14:14:06Z
urn:hdl:11583/2970481
Genetic algorithm-based optimisation of the few-group structure for lead fast reactor analysis
Mattia Massone
Nicolo Abrate
Giuseppe Francesco Nallo
Domenico Valerio
Sandra Dulla
Piero Ravetto
Massone, MATTIA VINCENZO EDOARDO
Abrate, Nicolo'
Nallo, GIUSEPPE FRANCESCO
Valerio, Domenico
Dulla, Sandra
Ravetto, Piero
The optimal choice of the few-group structure for full-core transient analyses is still an open issue in reactor physics, especially for fast systems (as the lead fast reactor). One possible approach to select the group boundaries is represented by heuristic search algorithms, such as evolutionary ones. In this paper, a genetic algorithm coupled with the SIMMER code is employed to determine optimized six-group boundaries for the analysis of the ALFRED reactor. The Serpent Monte Carlo code is adopted to produce both the fine-group cross section library and the fine-group flux, used as a figure of merit to drive the genetic optimisation. The results show that the algorithm is indeed able to find satisfactory solutions that comply with the set objectives and can be reasonably interpreted in light of the underlying physics of the considered core.
2022
info:eu-repo/semantics/conferenceObject
http://hdl.handle.net/11583/2970481
https://www.ans.org/pubs/proceedings/article-51120/
eng
Proceedings of the PHYSOR 2022 International Conference
PHYSOR 2022 International Conference
info:eu-repo/semantics/closedAccess
ELETTRONICO
American Nuclear Society
oai:iris.polito.it:11583/29817732024-03-09T08:48:36Zcom_11583_2614429com_11583_2614425col_11583_2614406
2024-01-26T07:18:43Z
urn:hdl:11583/2981773
On numerical calibration-based techniques for microwave imaging devices
D. O. Rodriguez-Duarte
C. Origlia
J. A. Tobon Vasquez
F. Vipiana
Rodriguez-Duarte, D. O.
Origlia, C.
Tobon Vasquez, J. A.
Vipiana, F.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2981773
10.46620/URSIGASS.2023.3328.MWLT9143
https://www.ursi.org/proceedings/procGA23/GASS2023-authors.html#R
eng
URSI General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)
2023 XXXVth URSI General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)
info:eu-repo/semantics/openAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29850052024-03-14T01:38:11Z
urn:hdl:11583/2985005
A Case Study on the Application of the United Nations Framework Classification for Resources on the Piampaludo Titanium Deposits
Sabra, Ghadi
Cardu, Marilena
Frenz W., Preube A.
Sabra, Ghadi
Cardu, Marilena
With the current declining trends, energy, and raw materials have become focal points for sustainable development. Safeguarding mineral resources in a sustainable matter grew into a great challenge in Europe, especially for Critical Raw Materials. These strategic commodities are fundamental for the energy transition. Securing mineral supply depends on the type of deposits, which determines the mineral quantity and quality. Instead, mineral project development is defined by the technical feasibility and the related environmental socio-economic viability. These factors are strongly embedded in the United Nations Framework Classification for Resources. UNFC is a global, principle-based reporting system developed in accordance with the Agenda 2030. It is based on three fundamental pillars: the environmental-socio-economic viability, the technical feasibility, and the degree of confidence in product estimates. The Titanium deposit of Piampaludo was the subject of this case study to underline the process for social and environmental considerations when reporting in UNFC. The Piampaludo Titanium deposit is one of the greatest in Europe, yet it remains bounded by serious environmental and social contingencies. The application of UNFC in this case study gives a comprehensive outlook on the project’s maturity under the given circumstances. In this paper, a potential solution for the recovery of the Piampaludo Titanium is briefly explored through the implementation of biotechnology to the given resource. Finally, the United Nations Resource Management System is introduced as part of the case study to highlight its importance in sustainable resource management.
2024
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2985005
10.1007/978-3-031-41873-0
info:eu-repo/semantics/altIdentifier/isbn/978-3-031-41872-3
eng
Yearbook of Sustainable Smart Mining and Energy 2022 - Technical, Economic and Legal Framework
info:eu-repo/semantics/closedAccess
STAMPA
Springer
oai:iris.polito.it:11583/29869032024-03-14T01:35:42Z
urn:hdl:11583/2986903
Generation of the neutron response function of an NE213 scintillator for fusion applications
Binda, F.
Eriksson, J.
Ericsson, G.
Hellesen, C.
Conroy, S.
Nocente, M.
Sundén, E.
Andersson
Subba, F.
Binda, F.
Eriksson, J.
Ericsson, G.
Hellesen, C.
Conroy, S.
Nocente, M.
Sundén, E.  
Andersson,
Subba, F.
In this work we present a method to evaluate the neutron response function of an NE213 liquid scintillator. This method is particularly useful when the proton light yield function of the detector has not been measured, since it is based on a proton light yield function taken from literature, MCNPX simulations, measurements of gammarays from a calibration source and measurements of neutrons from fusion experiments with ohmic plasmas. The inclusion of the latter improves the description of the proton light yield function in the energy range of interest (around 2.46 MeV).We apply this method to an NE213 detector installed at JET, inside the radiation shielding of the magnetic proton recoil (MPRu) spectrometer, and present the results from the calibration along with some examples of application of the response function to perform neutron emission spectroscopy (NES) of fusion plasmas.We also investigate how the choice of the proton light yield function affects the NES analysis, finding that the result does not change significantly. This points to the fact that the method for the evaluation of the neutron response function is robust and gives reliable results. (C) 2017 Published by Elsevier B.V.
2017
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986903
10.1016/j.nima.2017.04.023
2-s2.0-85021229974
eng
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT
none
ELSEVIER
oai:iris.polito.it:11583/29777852024-03-07T05:32:27Zcom_11583_2614427com_11583_2614425col_11583_2614390
2023-04-06T07:35:32Z
urn:hdl:11583/2977785
Chapter 4: Finite Element-Based Reduced Basis Method for Optimal Flow Control
Strazzullo, Maria
Ballarin, Francesco
Rozza, Gianluigi
Strazzullo, Maria
Ballarin, Francesco
Rozza, Gianluigi
2022
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2977785
10.1137/1.9781611977257.ch4
info:eu-repo/semantics/altIdentifier/isbn/978-1-61197-724-0
info:eu-repo/semantics/altIdentifier/isbn/978-1-61197-725-7
eng
Advanced Reduced Order Methods and Applications in Computational Fluid Dynamics
info:eu-repo/semantics/closedAccess
Society for Industrial and Applied Mathematics
oai:iris.polito.it:11583/29789212024-03-06T01:40:54Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-06-06T08:01:48Z
urn:hdl:11583/2978921
Implementation of a graphene impedance quantum standard with an electronic fully digital impedance bridge
Martina Marzano
Vincenzo D’Elia
Massimo Ortolano
Luca Callegaro
Marzano, Martina
D’Elia, Vincenzo
Ortolano, Massimo
Callegaro, Luca
The units of electrical impedance can be realized by using the quantum Hall resistance at AC (ACQHR). Impedance traceability chains based on the ACQHR can be obtained by exploiting novel digital impedance bridges. An affordable and easy-to-operate impedance quantum standard can be obtained by combining graphene quantum Hall resistance standards in the AC regime and these novel digital impedance bridges. We developed a four-terminal-pair electronic digital impedance bridge able to calibrate a capacitance standard directly against a graphene ACQHR standard with a relative uncertainty of about 1e-7 to implement the future INRIM traceability chain of the farad. The working principle, implementation, validation and uncertainty evaluation of the electrical fully digital impedance bridge for the calibration of a capacitance standard against a graphene ACQHR standard developed at INRIM are herewith discussed.
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2978921
eng
Conference on Precision Electromagnetic Measurements
2022 Conference on Precision Electromagnetic Measurements
info:eu-repo/semantics/closedAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29731282024-03-16T03:22:04Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-11-17T08:11:51Z
urn:hdl:11583/2973128
La cancellazione della storia e le sue resistenze. Schellino e l’igiene come metafora urbana
Daniele Regis
Regis, Daniele
La fine dell’Ottocento si connota come un periodo di grandi metamorfosi. Le nascenti metropoli improntate a nuovi modelli produttivi e, perciò, amministrativi mutano i precedenti assetti, con significative trasformazioni urbane, mentre emerge come tema centrale la questione dell’igiene. Attraverso lo specchio di alcuni casi emblematici e singolari, Daniele Regis, già autore di diversi volumi sull’architettura dell’Ottocento e su G. B. Schellino, ci offre un’originale lettura dei processi di formazione di un’idea di città e della sua storiografia (e iconografia) nel confronto ineludibile tra pensiero progettuale, sviluppo delle scienze umane e problematiche sanitarie. Temi
e processi ancora aperti nella loro straordinaria attualità.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2973128
https://www.addaeditore.it/collections/incroci
INCROCI
info:eu-repo/semantics/closedAccess
ADDA Editore
oai:iris.polito.it:11583/29815452024-03-17T18:54:05Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-09-13T08:22:23Z
urn:hdl:11583/2981545
Foot-Powered Machines, a Functional Taxonomy in the Age of Sustainability
franco walter
marchis vittorio
pozzi marco
Franco, Walter
Marchis, Vittorio
Pozzi, Marco
Since the Middle Ages, human-powered tools and machines have played an important role in societies. Prominent among these are pedal-powered machines, which harness the overall power from the strongest muscles in the human body. The article identifies a historical taxonomy of pedal-powered machines to provide designers with an orientation map for devising new solutions, suggesting some contexts in which today’s pedal-powered machines can re-purpose ancient mechanisms to perform an innovative function. The reduction in energy consumption, the low environmental impact, and the autonomy of the process, in fact, can represent not only a technical rediscovery of engineering, but also a new way of supporting human subsistence.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2981545
10.3390/machines11090855
2-s2.0-85172465209
https://www.mdpi.com/2075-1702/11/9/855
eng
MACHINES
info:eu-repo/semantics/openAccess
ELETTRONICO
MDPI
oai:iris.polito.it:11583/29840182024-03-23T02:19:11Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-11-23T09:47:20Z
urn:hdl:11583/2984018
Paesaggi urbani resilienti. Il caso studio di Tirana, Albania.
Aimar, Fabrizio
Aimar, Fabrizio
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2984018
http://urbanisticainformazioni.it/UI/UI311_hni54sw21.pdf
ita
URBANISTICA INFORMAZIONI
info:eu-repo/semantics/closedAccess
ELETTRONICO
INU Edizioni
oai:iris.polito.it:11583/29811452024-03-16T20:04:24Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-08-29T12:23:32Z
urn:hdl:11583/2981145
EpilepsyNet: Novel automated detection of epilepsy using transformer model with EEG signals from 121 patient population
Oh Shu Lih
V. Jahmunah
Elizabeth Emma Palmer
Prabal D. Barua
Sengul Dogan
Turker Tuncer
Salvador García
Filippo Molinari
U Rajendra Acharya
Shu Lih, Oh
Jahmunah, V.
Emma Palmer, Elizabeth
Barua, Prabal D.
Dogan, Sengul
Tuncer, Turker
García, Salvador
Molinari, Filippo
Rajendra Acharya, U
Background: Epilepsy is one of the most common neurological conditions globally, and the fourth most common in the United States. Recurrent non-provoked seizures characterize it and have huge impacts on the quality of life and financial impacts for affected individuals. A rapid and accurate diagnosis is essential in order to instigate and monitor optimal treatments. There is also a compelling need for the accurate interpretation of epilepsy due to the current scarcity in neurologist diagnosticians and a global inequity in access and outcomes. Furthermore, the existing clinical and traditional machine learning diagnostic methods exhibit limitations, warranting the need to create an automated system using deep learning model for epilepsy detection and monitoring using a huge database. Method: The EEG signals from 35 channels were used to train the deep learning-based transformer model named (EpilepsyNet). For each training iteration, 1-min-long data were randomly sampled from each participant. Thereafter, each 5-s epoch was mapped to a matrix using the Pearson Correlation Coefficient (PCC), such that the bottom part of the triangle was discarded and only the upper triangle of the matrix was vectorized as input data. PCC is a reliable method used to measure the statistical relationship between two variables. Based on the 5 s of data, single embedding was performed thereafter to generate a 1-dimensional array of signals. In the final stage, a positional encoding with learnable parameters was added to each correlation coefficient's embedding before being fed to the developed EpilepsyNet as input data to epilepsy EEG signals. The ten-fold cross-validation technique was used to generate the model. Results: Our transformer-based model (EpilepsyNet) yielded high classification accuracy, sensitivity, specificity and positive predictive values of 85%, 82%, 87%, and 82%, respectively. Conclusion: The proposed method is both accurate and robust since ten-fold cross-validation was employed to evaluate the performance of the model. Compared to the deep models used in existing studies for epilepsy diagnosis, our proposed method is simple and less computationally intensive. This is the earliest study to have uniquely employed the positional encoding with learnable parameters to each correlation coefficient's embedding together with the deep transformer model, using a huge database of 121 participants for epilepsy detection. With the training and validation of the model using a larger dataset, the same study approach can be extended for the detection of other neurological conditions, with a transformative impact on neurological diagnostics worldwide.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2981145
10.1016/j.compbiomed.2023.107312
2-s2.0-85168306730
https://www.sciencedirect.com/science/article/pii/S0010482523007771
eng
COMPUTERS IN BIOLOGY AND MEDICINE
info:eu-repo/semantics/restrictedAccess
STAMPA
Elsevier
oai:iris.polito.it:11583/29838442024-03-18T21:41:33Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-11-20T10:50:47Z
urn:hdl:11583/2983844
Timing of nasogastric tube insertion and the risk of postoperative pneumonia: an international, prospective cohort study
Glasbey J. C.
Morino M
Cannata G
and EuroSurg Collaborative
Glasbey, J. C.
Morino, M
Cannata, G
and EuroSurg, Collaborative
Aim Aspiration is a common cause of pneumonia in patients with postoperative ileus. Insertion of a nasogastric tube (NGT) is often performed, but this can be distressing. The aim of this study was to determine whether the timing of NGT insertion after surgery (before versus after vomiting) was associated with reduced rates of pneumonia in patients undergoing elective colorectal surgery. Method This was a preplanned secondary analysis of a multicentre, prospective cohort study. Patients undergoing elective colorectal surgery between January 2018 and April 2018 were eligible. Those receiving a NGT were divided into three groups, based on the timing of the insertion: routine NGT (inserted at the time of surgery), prophylactic NGT (inserted after surgery but before vomiting) and reactive NGT (inserted after surgery and after vomiting). The primary outcome was the development of pneumonia within 30 days of surgery, which was compared between the prophylactic and reactive NGT groups using multivariable regression analysis. Results A total of 4715 patients were included in the analysis and 1536 (32.6%) received a NGT. These were classified as routine in 926 (60.3%), reactive in 461 (30.0%) and prophylactic in 149 (9.7%). Two hundred patients (4.2%) developed pneumonia (no NGT 2.7%; routine NGT 5.2%; reactive NGT 10.6%; prophylactic NGT 11.4%). After adjustment for confounding factors, no significant difference in pneumonia rates was detected between the prophylactic and reactive NGT groups (odds ratio 1.03, 95% CI 0.56-1.87,P = 0.932). Conclusion In patients who required the insertion of a NGT after surgery, prophylactic insertion was not associated with fewer cases of pneumonia within 30 days of surgery compared with reactive insertion.
2020
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2983844
10.1111/codi.15311
2-s2.0-85091013861
https://onlinelibrary.wiley.com/doi/10.1111/codi.15311
eng
COLORECTAL DISEASE
info:eu-repo/semantics/closedAccess
WILEY
oai:iris.polito.it:11583/29790202024-03-09T04:42:19Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-06-05T10:17:19Z
urn:hdl:11583/2979020
2D finite elements for the computational analysis of crack propagation in brittle materials and the handling of double discontinuities
Fichera, Sebastiano
Biondi, Bruno
Ventura, Giulio
Fichera, Sebastiano
Biondi, Bruno
Ventura, Giulio
Crack growth simulations by way of the traditional Finite Element Method claim progressive remeshing to fit the geometry of the fracture, severely increasing the computational effort. Methods such as the eXtended Finite Element Method (XFEM) allow to overcome this limitation by means of nodal shape functions multiplied by Heaviside step function to enrich finite element nodes. Through the medium of a discontinuous field, the entire geometry of the discontinuity can be modelled regardless of
the mesh, avoiding remeshing. In this paper two shell-type XFEM elements (a three-node triangular element and a four-node quadrangular element) to evaluate crack propagation in brittle materials are presented. These elements have been implemented into the widespread opensource framework OpenSees to evaluate crack propagation into a plane shell subjected to monotonically increasing loads. Moreover, in the perspective of fracture propagation simulations, the problem of managing multiple cracks without remeshing or operating subdivisions on the integration domain has been investigated and a four-node quadrangular finite element
for the computational analysis of double crossed discontinuities by the means of equivalent polynomials is presented in this paper.
Equivalent polynomials allow to overcome inaccuracies on the results when performing standard numerical integration (e.g. Gauss-Legendre quadrature rule) over the entire domain of XFEM elements, without the need of defining integration subdomains. The presented work and the computational strategy behind it may be extremely useful not only in the field of fracture mechanics, but also to solve complex geometry problems or material discontinuities.
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2979020
10.1016/j.prostr.2022.12.164
2-s2.0-85159010171
https://www.sciencedirect.com/science/article/pii/S2452321622007211
eng
PROCEDIA STRUCTURAL INTEGRITY
23 European Conference on Fracture
23 European Conference on Fracture – ECF23
info:eu-repo/semantics/openAccess
ELETTRONICO
Elsevier
oai:iris.polito.it:11583/29829832024-03-06T04:10:58Zcom_11583_2614429com_11583_2614425col_11583_2614406
2023-10-20T06:56:23Z
urn:hdl:11583/2982983
Straight-path and U-turn gait biomarkers in PD patients before and after deep-brain stimulation
Ghislieri, M.
Lanotte, M.
Rizzi, L.
Knaflitz, M.
Agostini, V.
Ghislieri, M.
Lanotte, M.
Rizzi, L.
Knaflitz, M.
Agostini, V.
Clinical gait analysis revealed that turnings are altered, even in the early stages of Parkinson’s Disease (PD), with increased turning arcs, time to complete the turn, and a larger number of steps taken to complete the turn. Furthermore, turning/curved walking is more likely to cause gait instabilities and increased variability compared to straight walking. Many studies focus on repeated trials of short intermittent walking bouts, while there is a lack of works considering continuous and prolonged overground walking, that includes both straight-path and turnings. However, this latest approach seems promising to obtain sensitive and reliable gait biomarkers recorded in ecological walking conditions. This study enrolled 20 PD patients and 20 healthy controls. PD patients were tested twice: before Deep-Brain-Stimulation (DBS) neurosurgery, and 3 months after it. All subjects were asked to walk for 5 minutes back and forth a straight path, and to U-turn for changing direction at the end of the 9-m walkway. Foot-floor contact events were directly detected by means of footswitches. Besides traditional gait parameters, the percentage of “non-standard” gait cycles was analyzed, i.e., cycles showing a sequence of foot-floor contact events different from the typical one (heel-strike/flat-foot-contact/push-off/swing), normalized with respect to the walking speed. Overall, PD patients considerably improved their gait after DBS. The percentage of “non-standard” gait cycles (also called “atypical” gait cycles) already proved to be an accurate biomarker for quantifying subtle gait dysfunctions in PD patients, correlated with the clinical score UPDRS-III. The present work demonstrated the validity of this parameter in the evaluation of the effects of the DBS, at 3 months after the implant. The segmentation of straight-path and U-turning epochs provided supplemental information, that can be useful in the management of PD patients. While the PD neuromuscular control after DBS was already analyzed in a recent work, this is the first contribution presenting original gait analysis data on this cohort of patients.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2982983
10.1016/j.gaitpost.2023.07.288
https://www.sciencedirect.com/science/article/pii/S0966636223013164?via=ihub
eng
GAIT & POSTURE
Abstracts of the 23rd National Congress of SIAMOC
23rd National Congress of SIAMOC
info:eu-repo/semantics/openAccess
ELETTRONICO
Elsevier
oai:iris.polito.it:11583/29841452024-02-11T02:59:59Zcom_11583_2614432com_11583_2614425col_11583_2817854
2023-12-11T10:00:55Z
urn:hdl:11583/2984145
Modello per la simulazione dinamica di modalità innovative di controllo della frequenza e analisi dell’evoluzione dell’inerzia
Iaria, Adriano
Cavanese, Silvia Maria
Rapizza, Marco Raffaele
Solida, Lorenzo
Iaria A., Canevese S.M., Rapizza M. R., Solida L.
Iaria, Adriano
Cavanese, Silvia Maria
Rapizza, Marco Raffaele
Solida, Lorenzo
The energy transition involves a wide spread of renewable generation and a simultaneous reduction of thermoelectric generation, which has been so far a fundamental resource for frequency regulation and for power system inertia. Analyses concerning new flexibility resources, on one hand, and the evolution of inertia, on the other hand, are therefore needed.
The first presented activity concerns the upward transient frequency regulation (i.e. inertial) by wind generation and the ultra-fast regulation by battery storage systems, as stated by the specifications of the operator Terna. The dynamic simulations of perturbations on future scenarios of the Sardinian system showed that the wind inertial regulation improves the frequency transient but, in some initial conditions (e.g.: operating point lying in the linear part of the wind-power characteristics), it is not optimal because it causes further frequency perturbation due to the rotor speed recovery. On the other hand, the battery storage regulation is always of benefit to the system and mitigates the possible perturbation due to the wind units recovery.
The second activity describes the evolution of system inertia and analyses the time profile of an index concerning the inertial amount per unit of generated power in a year 2030 scenario. in relation to the evolution of the energy mix. The activity is preliminary to future studies concerning the influence of the inertia spatial distribution on frequency stability.
2021
info:eu-repo/semantics/other
https://hdl.handle.net/11583/2984145
https://www.rse-web.it/rapporti/modello-per-la-simulazione-dinamica-di-modalita-innovative-di-controllo-della-frequenza-e-analisi-dellevoluzione-dellinerzia/
ita
Ricerca di sistema, RSE, n° 21012282
info:eu-repo/semantics/openAccess
ELETTRONICO
Ricerca sul Sistema Energetico – RSE S.p.A.
oai:iris.polito.it:11583/29734642024-03-22T21:50:03Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-12-01T10:58:36Z
urn:hdl:11583/2973464
Functionalization with Polyphenols of a Nano-Textured Ti Surface through a High–Amino Acid Medium: A Chemical–Physical and Biological Characterization
Rafaella C. P. Scannavino
Giacomo Riccucci
SARA FERRARIS
Gabriel L. C. Duarte
Paulo Tambasco de Oliveira
Silvia Spriano
Scannavino, Rafaella C. P.
Riccucci, Giacomo
Ferraris, Sara
Duarte, Gabriel L. C.
Tambasco de Oliveira, Paulo
Spriano, Silvia
The study aimed to identify an effective mechanism of adsorption of polyphenols on a nano-textured Ti surface and to evaluate the osteogenic differentiation on it. The source of polyphenols was a natural extract from red grape pomace. A chemical etching was used to form an oxide layer with a nanoscale texture on Ti; this layer is hydrophilic, but without hydroxyl groups with high acidic-basic chemical reactivity. The samples were characterized by electron and fluorescence microscopies, UV-Vis spectroscopy, contact angle measurements, zeta potential titration curves, and Folin-Ciocalteu test. The presence of an adsorbed layer of polyphenols on the functionalized surface, maintaining redox ability, was confirmed by several tests. Consistent with the surface features, the adsorption was maximized by dissolving the extract in a high-amino acid medium, with respect to an inorganic solution, exploiting the high affinity of amino acids for polyphenols and for porous titanium surfaces. The osteogenic differentiation was assessed on an osteoblastic cell line by immunofluorescence, cell viability, expression of key osteoblast markers, and extracellular matrix mineralization. The surfaces functionalized with the extract diluted in the range 1 x 10(-5)-1 mg/mL resulted in having a greater osteogenic activity for the highest concentration, with lower values of cell viability; higher expression of alkaline phosphatase, bone sialoprotein, and collagen; and lower levels of osteopontin. In conclusion, the functionalization of a nano-textured Ti surface with polyphenols can potentially favor the osteogenic activity of osseointegrated implants.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2973464
10.3390/nano12172916
2-s2.0-85137814274
eng
NANOMATERIALS
info:eu-repo/semantics/openAccess
ELETTRONICO
MDPI
oai:iris.polito.it:11583/29834922024-03-09T07:15:10Z
urn:hdl:11583/2983492
Acessibilidade e direitos humanos: contribuição metodológica e estudo de caso em Goiânia
KNEIB, Erika
de Lima AMARAL, Camilo Vladimir
Souza, Juliana
Trad, Guilherme
Andrade, Pedro
Kneib, Erika (org)
Kneib, Erika
de Lima AMARAL, Camilo Vladimir
Souza, Juliana
Trad, Guilherme
Andrade, Pedro
2013
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2983492
info:eu-repo/semantics/altIdentifier/isbn/9788580830972
https://projetoecidade.fav.ufg.br/p/31313-projeto-e-cidade-ensaios-academicos
por
Projeto e Cidade: Ensaios Acadêmicos
none
STAMPA
Funape
oai:iris.polito.it:11583/29852182024-01-18T23:58:35Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-01-18T14:33:55Z
urn:hdl:11583/2985218
Recent trends on electro chemical machining process of metallic materials: a review
Liu, SF
Thangamani, G
Thangaraj, M
Karmiris-Obratanski, P
Liu, Sf
Thangamani, G
Thangaraj, M
Karmiris-Obratanski, P
Many newer higher strength materials are being synthesized for variable automobile, aerospace and manufacturing applications in the present scenario. Since it is very difficult to cut such materials using conventional machining process, it is important to utilize unconventional machining process. In the present study, a detailed survey has been made to analyze the influence of various process parameters, effects of electrodes, optimization and electrolytes on performance measures in Electro chemical machining process. The effects of pulse related parameters on electrode materials, coating materials and its thickness on material removal, overcut and surface topography were investigated under different perspectives such materials, electrolyte and machining parameters. From the detailed literatures, it has been inferred that still lot of research works have been required to find the suitable electrolytes and their combination during the machining process. It has also been found that the performance measures of the machining process can be improved by adopting different and suitable optimization algorithms.[GRAPHICS].
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2985218
10.1007/s43452-023-00703-w
2-s2.0-85160735445
https://link.springer.com/article/10.1007/s43452-023-00703-w#citeas
eng
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
info:eu-repo/semantics/openAccess
SPRINGERNATURE
oai:iris.polito.it:11583/29822972024-01-18T00:49:56Z
urn:hdl:11583/2982297
Old wine in a new bottle? Organizational implications of digitalization
Aimonino,Gabriele
Pesce,Danilo
Neirotti,Paolo
Paolucci,Emilio
Aimonino, Gabriele
Pesce, Danilo
Neirotti, Paolo
Paolucci, Emilio
Digital technologies have revolutionized the field of innovation management,
opening up new possibilities and opportunities for product and innovation processes.
While the impact of digitalization on creativity and knowledge creation has been
acknowledged, the specific influence of digital technology adoption on the creative
phase of innovation remains relatively unexplored. Drawing on data from an
established Italian company, the analysis captures the evolving dynamics of
digitalization and its implications for organizational trade-offs during the creative
phase of innovation. Our taxonomy identifies five organizational and managerial
tensions brought forward by digitalization: (1) increasing optimization vs
decreasing organizational slack and diversity; (2) increasing collaboration vs defocusing; (3) increasing need for "digital" skills vs decreasing reliance on legacy
experience-based skills; (4) increasing openness vs decreasing control; (5)
increasing flexibility vs decreasing stability. The study directly informs the debate
on whether digital technologies are simply “old wine in new bottles” when it comes
to management and organization theories. Our stance, based on an inductive case
study, is that it might be time to rethink some of these building blocks. The taxonomy
serves as a valuable guide for managers, providing insights into the organizational
and managerial implications of digitalization on creativity and knowledge creation
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2982297
info:eu-repo/semantics/altIdentifier/isbn/978-90-77360-26-2
eng
Titolo volume non avvalorato
24th CINeT conference Taking care of our future: Foresight and innovation for a sustainable world
none
ELETTRONICO
CINeT
oai:iris.polito.it:11583/29826012024-01-28T01:10:17Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-10-17T14:14:24Z
urn:hdl:11583/2982601
CMV seroprevalence and coronary CMV-DNA detection in immunocompetent patients with heart diseases.
Valeria CENTO
Luna COLAGROSSI
Irene BOSSI
Daniele ARMENIA
Alice NAVA
Enrico PICCINELLI
Alessandro MALOBERTI
Elvira INGLESE
Elisa MATARAZZO
Federica DI RUSCIO
Pierpaolo PABA
Fabbio MARCUCCILLI
Marco PERRONE
Gaetano CHIRICOLO
Claudia ALTERI
Francesco SCAGLIONE
Chiara VISMARA
Daniela A. CAMPISI
Diana FANTI
Francesco ROMEO
Massimo ANDREONI
Fabrizio OLIVA
Francesca CECCHERINI-SILBERSTEIN
Cristina GIANNATTASIO
Carlo F. PERNO
Cento, Valeria
Colagrossi, Luna
Bossi, Irene
Armenia, Daniele
Nava, Alice
Piccinelli, Enrico
Maloberti, Alessandro
Inglese, Elvira
Matarazzo, Elisa
DI RUSCIO, Federica
Paba, Pierpaolo
Marcuccilli, Fabbio
Perrone, Marco
Chiricolo, Gaetano
Alteri, Claudia
Scaglione, Francesco
Vismara, Chiara
Campisi, Daniela A.
Fanti, Diana
Romeo, Francesco
Andreoni, Massimo
Oliva, Fabrizio
CECCHERINI-SILBERSTEIN, Francesca
Giannattasio, Cristina
Perno, Carlo F.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2982601
MINERVA MEDICA
none
Minerva Medica
oai:iris.polito.it:11583/29747232024-03-17T02:02:57Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-03-17T09:05:10Z
urn:hdl:11583/2974723
CALCOLO DELL’USURA IN CAMPO FERROVIARIO: CONFRONTO TRA APPROCCI GLOBALI E LOCALI
Bosso, Nicola
Magelli,Matteo
Zampieri, N
Bosso, Nicola
Magelli, Matteo
Zampieri, N
A causa delle elevate forze di contatto e degli scorrimenti all’interfaccia ruota-rotaia, le ruote ferroviarie sono soggette ad usura. La disponibilità di codici in grado di calcolare l’usura delle ruote è un supporto fondamentale alla manutenzione predittiva delle ruote ma anche alla fase di progetto del veicolo. Tipicamente, il materiale asportato viene calcolato introducendo leggi di usura empiriche, che possono essere applicate con approccio globale o locale. Nel primo caso, il materiale asportato viene complessivamente calcolato a partire dalle forze e dagli scorrimenti sull’area di contatto, ed è necessario ipotizzare a priori la distribuzione del materiale asportato lungo il profilo. Al contrario, con approccio locale, l’usura viene calcolata in ogni punto dell’area di contatto a partire dalle distribuzioni di pressione di contatto e velocità di scorrimento. La seguente memoria mira a confrontare le differenze tra gli approcci globale e locale nel calcolo dell’usura delle ruote ferroviarie.
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2974723
ita
51° Convegno AIAS
51° Convegno AIAS
info:eu-repo/semantics/closedAccess
ELETTRONICO
Università degli Studi di Padova
oai:iris.polito.it:11583/29828392024-03-07T04:14:07Zcom_11583_2614427com_11583_2614425col_11583_2614390
2023-10-16T10:48:54Z
urn:hdl:11583/2982839
Digital ecosystems for the virtual fruition of Porta Aurea in Ravenna
Giovannini, Elisabetta Caterina
Picchio, F.
Giovannini, Elisabetta Caterina
The presented study is focused on communicating and visualizing architectural representations through computational and digital methods in the context of transversality and trans- disciplinary knowledge. In particular, the study enlightens the role of digital ecosystems in the communication processes of built cultural heritage, which is intended as a medium for the visualization of the n-dimensional levels of knowledge that can be collected in virtual reconstruction processes according to different kinds of resources. The study involved different applications and tools for creating digital ecosystems that manage diverse information: digital galleries, 3D models, drawing annotation systems, and a Social Virtual Environment (SVE) platform. The study focused on the dissemination and virtual musealization of a monument that is no longer extant and has always aroused the interest of many scholars and archaeologists: Porta Aurea in Ravenna. The Roman Gate was built in 43 A.D. at the behest of Roman Emperor Tiberius Claudius. The existence of large and not heterogeneous documentation allows the possibility to investigate the theme of digital ecosystems for museum collections. In particular, digitization processes' role in creating digital environments for different types of fruition: research and dissemination for a large public. Immersive digital environments can shift the focus from the management of the museum space, the container of the collection, to the exhibition itself. The SVE platform used in the study is a novel solution for developing a digital environment accessible by any web browser. A room dedicated to the Porta Aurea fragments at the National Museum of Ravenna also offers new perspectives on using virtual environments for disseminating museum collections replicating the environment to which they belong. The solution differs from the website, the two-dimensional ancestor of virtual environments, making a novel way of fruition that is no longer passive but active, interactive, and participatory.
2023
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2982839
info:eu-repo/semantics/altIdentifier/isbn/978-88-6952-176-8
info:eu-repo/semantics/altIdentifier/isbn/978-88-6952-175-1
https://www.paviauniversitypress.it/catalogo/digital-e-documentation--vol--5/6707
eng
Digital & Documentation Vol. 5 - From virtual space to information database
info:eu-repo/semantics/openAccess
Pavia University Press
oai:iris.polito.it:11583/29813112024-03-08T08:32:53Zcom_11583_2614429com_11583_2614425col_11583_2614406
2023-12-07T10:26:09Z
urn:hdl:11583/2981311
Reuse of by-products coming from blasting of unstable rock elements.
Casale, Marco
Dino, Giovanna Antonella
Oggeri, Claudio
Casale, Marco
Dino, Giovanna Antonella
Oggeri, Claudio
The improvement of safety conditions of unstable rock slopes can be achieved through the use of explosives, for the removal of unstable rock elements. This technique is often applied because, most of time, drill and blast operations, where they can be used, are cheaper and faster than other techniques and require less subsequent maintenance interventions.
When the activity is performed in an area that can be reached by vehicles (quarry area, slope above a road, etc...) it is possible to recover the blasted material.
Depending on the size of the unstable element to be removed, this kind of operations often lead to the production of large quantities of blasted rocks, which most often ends up at landfill or is marginally reused in unqualified manner (construction of temporary tracks, filling voids left by extractive activity, etc...).
Reusing blasted rocks can offer several benefits: more sustainable engineering practices, economic, environmental and social benefits; in particular, this way of operating can preserve natural resources and prevent the production of unwanted waste. As a rule, on-site and nearby-site reuse is preferred to meet sustainable goals. Specific cases where blasted material has been adopted for both slope protection and final rehabilitation works, in a quarry area, can be mentioned.
Unfortunately, due to unclear legislation, lack of technical data and extreme variability of the materials produced (for instance quantity, size and physical properties), the use of blasted material is not common: It can be estimated that only 20-30% of these materials are currently reused properly.
To improve this practice, the type of reuse must be a design goal since the beginning of the planning phase.
According to the quality of the rock mass and the type of blasting, different by-products can be obtained, i.e. armour stones to be applied in hydraulic engineering works, gabion stones, drainage stones and crusher run as a mix of different types of aggregates, that can be employed as paver layer on road construction.
When ornamental stone quarries are involved, hard rock fragments are obtained for high mechanical performances.
The main purpose of blasting demolition of unstable rock elements, as mentioned, is to improve the safety conditions of the site, depending on local features, as well as by the safety of the workers, that can force the blasting scheme geometry and firing and impose important limitations on the operating techniques.
Two case studies will be presented, both in the Verbano-Cusio-Ossola (VCO; Piemonte - NW Italy) extractive area; they show how the blast design can be arranged to obtain different fragmentation and greater quantities of a specific by-product, according to the local needs and specific reuse.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2981311
10.5194/egusphere-egu23-8606
eng
EGU General Assembly 2023
EGU General Assembly 2023
info:eu-repo/semantics/openAccess
ELETTRONICO
EGU23-8606
oai:iris.polito.it:11583/29715932024-03-26T02:50:25Zcom_11583_2614426com_11583_2614425col_11583_2614385
2022-09-28T07:42:46Z
urn:hdl:11583/2971593
Book Review: Post-growth planning. cities beyond the market economy
Karl Kraehmer
Kraehmer, Karl
2022
info:eu-repo/semantics/article
http://hdl.handle.net/11583/2971593
10.1080/09654313.2022.2125651
https://doi.org/10.1080/09654313.2022.2125651
eng
EUROPEAN PLANNING STUDIES
info:eu-repo/semantics/openAccess
ELETTRONICO
Taylor and Francis
oai:iris.polito.it:11583/29812952024-03-21T22:50:36Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-08-28T07:30:02Z
urn:hdl:11583/2981295
Characterisation of Residual Stresses of Rheocast Al Alloy
Elisa Fracchia
Ivano Gattelli
Marco Actis Grande
Fracchia, Elisa
Gattelli, Ivano
ACTIS GRANDE, Marco
Rheocasting is a semisolid casting process allowing toobtain near-net shapeparts. Through the Rheocasting process, itis possible to achievealuminium castings havinga lowgrade of porosity if compared to traditional die-casting methods, encouraging the production of automotive frame parts. However, casting processes, as commonly known, may cause tensile residual stresses inside the parts. Onthe other hand, compressive stresses inside castings can significantly increase the life of components: residual compressive stresses increase the material's resistance by counteracting crack initiation and propagation. The cracks propagate when the material is under tensile stress, while the Rheocasting technique seems to promote compressive stresses inside the castings.This work aims to analyse an aluminium rheocasted frame component for race cars in both the as-cast and heat-treated conditions. First,the mechanical properties of the components were evaluatedin terms of tensile tests and microhardness.Then, residual stresses were measured at specific points of the casting.Finally, theevolution of the residual stresses inside the component before and after heat treatment led to assessing the effect of the Rheocasting process condition andthe heat treatment, proving the marked advantage of using such a technology.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2981295
10.4028/p-cQ6PQs
2-s2.0-85170553010
https://www.scientific.net/SSP.347.31
eng
Semi-solid casting of structural materials
The 17th International Conference on Semi Solid Processing of Alloys & Composites
info:eu-repo/semantics/closedAccess
ELETTRONICO
Trans Tech Publications
oai:iris.polito.it:11583/29709452023-05-16T19:55:14Zoai:iris.polito.it:11583/29744392024-03-20T14:07:14Zcom_11583_2614426com_11583_2614425col_11583_2705209
2023-01-11T08:16:06Z
urn:hdl:11583/2974439
Thinking with Vegetation / Pensar con la vegetación
FRANCISCO JAVIER DIAZ PENALOZA
DIAZ PENALOZA, FRANCISCO JAVIER
2021
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2974439
10.4067/S0717-69962021000200012
https://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-69962021000200012&lng=es&nrm=iso&tlng=en
eng
spa
ARQ
info:eu-repo/semantics/openAccess
STAMPA
Ediciones ARQ
oai:iris.polito.it:11583/29771482024-03-16T03:16:39Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-04-03T11:09:41Z
urn:hdl:11583/2977148
On the role of the flow permeability of metal foams on trailing edge noise reduction
Rubio Carpio A.
Avallone F.
Ragni D.
Rubio Carpio, A.
Avallone, F.
Ragni, D.
2018
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2977148
10.2514/6.2018-2964
2-s2.0-85051296611
info:eu-repo/semantics/altIdentifier/isbn/978-1-62410-560-9
Titolo volume non avvalorato
2018 AIAA/CEAS Aeroacoustics Conference
none
American Institute of Aeronautics and Astronautics, Inc.
oai:iris.polito.it:11583/29739102024-03-07T06:10:29Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-03-16T13:06:41Z
urn:hdl:11583/2973910
Development of a multiscale testing method for the reduction of soft biological tissues waste during mechanical characterization
Lugas, Andrea T.
Serino, Gianpaolo
Terzini, Mara
Bignardi, Cristina
Audenino, Alberto L.
Lugas, Andrea T.
Serino, Gianpaolo
Terzini, Mara
Bignardi, Cristina
Audenino, Alberto L.
2021
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2973910
10.4081/bse.2021.176
BIOMEDICAL SCIENCE AND ENGINEERING
Biomedical Science and Engineering 2021; volume 4(s1):176
Third Centro 3R Annual Meeting - L’era delle 3R: modelli in silico, in vitro e in vivo per promuovere la ricerca traslazionale
none
PAGEPress
oai:iris.polito.it:11583/29732762024-03-23T17:34:42Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-11-25T10:22:22Z
urn:hdl:11583/2973276
International Investment Agreements and FDI inflows in Africa
Benfratello, Luigi
D'Ambrosio, Anna
Sangrigoli, Alida
Benfratello, Luigi
D'Ambrosio, Anna
Sangrigoli, Alida
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2973276
10.1429/105332
2-s2.0-85142322608
POLITICA ECONOMICA
none
Il Mulino
oai:iris.polito.it:11583/29732852024-03-23T01:05:04Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-11-25T11:07:15Z
urn:hdl:11583/2973285
Spazi in attesa nelle Residenze Sabaude, Patrimonio Mondiale dal 1997. Previsioni di restauro e messa a sistema nell’obiettivo della sostenibilità culturale
NARETTO MONICA
Naretto, Monica
The Residences of the Royal House of Savoy in Piedmont entered the World Heritage List in 1997: they are elements of a serial site, monumental architecture, gardens and parks, which characterise the former capital city (Turin) and a vast extra-urban territorial segment, on which many restoration and valorisation policies have focused in recent years. However, in their heterogeneity, each of the assets reveals some unresolved spaces, which institutional protection must oversee and simultaneously express particular cultural potential. The contribution aims to illustrate projects developed in contact with the management reality of some of these Residences, in particular Aglié, Govone and Racconigi, in agreement with the preservation institutes and owners. Cogent issues in the debate on restoration emerge, such as, among others, the search for a balance between conservation and innovation and the pursuit of quality in intervention, in the face of a renewed cultural demand affected by the difficult historical period we are going through.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2973285
https://issuu.com/dida-unifi/docs/ra_special_issue_world_heritage_in_transition_1
eng
ita
RESTAURO ARCHEOLOGICO
info:eu-repo/semantics/closedAccess
STAMPA
Firenze University Press
oai:iris.polito.it:11583/29710662024-03-23T21:03:19Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-10-26T20:54:04Z
urn:hdl:11583/2971066
Use of Polyesters in Fused Deposition Modeling for Biomedical Applications
Arianna Grivet-Brancot
Monica Boffito
Gianluca Ciardelli
Grivet-Brancot, Arianna
Boffito, Monica
Ciardelli, Gianluca
In recent years, 3D printing techniques experience a growing interest in several sectors, including the biomedical one. Their main advantage resides in the possibility to obtain complex and personalized structures in a cost-effective way impossible to achieve with traditional production methods. This is especially true for fused deposition modeling (FDM), one of the most diffused 3D printing methods. The easy customization of the final products' geometry, composition, and physicochemical properties is particularly interesting for the increasingly personalized approach adopted in modern medicine. Thermoplastic polymers are the preferred choice for FDM applications, and a wide selection of biocompatible and biodegradable materials is available to this aim. Moreover, these polymers can also be easily modified before and after printing to better suit the body environment and the mechanical properties of biological tissues. This review focuses on the use of thermoplastic aliphatic polyesters for FDM applications in the biomedical field. In detail, the use of poly(epsilon-caprolactone), poly(lactic acid), poly(lactic-co-glycolic acid), poly(hydroxyalkanoate)s, thermoplastic poly(ester urethane)s, and their blends is thoroughly surveyed, with particular attention to their main features, applicability, and workability. The state-of-the-art is presented and current challenges in integrating the additive manufacturing technology in the medical practice are discussed.
2022
info:eu-repo/semantics/article
http://hdl.handle.net/11583/2971066
10.1002/mabi.202200039
2-s2.0-85132438690
https://onlinelibrary.wiley.com/doi/full/10.1002/mabi.202200039
eng
MACROMOLECULAR BIOSCIENCE
info:eu-repo/semantics/openAccess
ELETTRONICO
WILEY-V C H VERLAG GMBH
oai:iris.polito.it:11583/29810602024-01-21T01:05:23Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-08-23T12:24:09Z
urn:hdl:11583/2981060
Working Poverty in the Framework of the Work Anthropology: A Literature Review and Considerations on Care-related Labour
Francesco Scotognella
Scotognella, Francesco
The phenomenon of working poverty is significant and involves an important percentage of population in many countries. This paper focuses on sketching, without being exhaustive, the state-of-the-art on working poverty in terms of definition and size. It also considers possible recent correlations of working poverty with the COVID-19 pandemic and with the rise of the digital labour platforms. This paper also shows the difference between labour, work, and action according to Hannah Arendt, together with the concept of anthropology of work of Maria Pia Chirinos. Finally, highlighting the pioneering works of Chirinos, the study suggests a picture in which human being, or a rational animal (Lat.: animal rationale; Gr.: zoon logon echon, ζῷον λόγοϛ ἔχων), essentially acts in endeavours, such as labour which is devoted to self-preservation and care. Under such picture, society should take into account the richness of the traditions and skills of different types of jobs and also in terms of minimal wage.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2981060
10.19044/esj.2022.v18n10p1
https://eujournal.org/index.php/esj/article/view/15262
eng
EUROPEAN SCIENTIFIC JOURNAL
info:eu-repo/semantics/openAccess
ELETTRONICO
European Scientific Institute
oai:iris.polito.it:11583/29747742024-03-21T20:18:41Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-01-20T11:01:29Z
urn:hdl:11583/2974774
Visual and haptic feedback in detecting motor imagery within a wearable brain-computer interface
Pasquale Arpaia
Damien Coyle
Francesco Donnarumma
Antonio Esposito
Angela Natalizio
Marco Parvis
Arpaia, Pasquale
Coyle, Damien
Donnarumma, Francesco
Esposito, Antonio
Natalizio, Angela
Parvis, Marco
This paper presents a wearable brain–computer interface relying on neurofeedback in extended reality for the enhancement of motor imagery training. Visual and vibrotactile feedback modalities were evaluated when presented either singularly or simultaneously. Only three acquisition channels and state-of-the-art vibrotactile chest-based feedback were employed. Experimental validation was carried out with eight subjects participating in two or three sessions on different days, with 360 trials per subject per session. Neurofeedback led to statistically significant improvement in performance over the two/three sessions, thus demonstrating for the first time functionality of a motor imagery-based instrument even by using an utmost wearable electroencephalograph and a commercial gaming vibrotactile suit. In the best cases, classification accuracy exceeded 80 % with more than 20 % improvement with respect to the initial performance. No feedback modality was generally preferable across the cohort study, but it is concluded that the best feedback modality may be subject-dependent.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2974774
10.1016/j.measurement.2022.112304
2-s2.0-85145776362
https://www.sciencedirect.com/science/article/pii/S0263224122015007?via=ihub
eng
MEASUREMENT
info:eu-repo/semantics/restrictedAccess
STAMPA
Elsevier
oai:iris.polito.it:11583/29818572024-01-10T01:51:30Zcom_11583_2614429com_11583_2614425col_11583_2614406
2023-09-12T12:38:48Z
urn:hdl:11583/2981857
Determinants of COVID-19 vaccination worldwide: a retrospective observational study
Peano, Alberto
Politano, Gianfranco
Gianino, Maria
Peano, Alberto
Politano, Gianfranco
Gianino, Maria
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2981857
10.18332/popmed/165077
http://www.populationmedicine.eu/Determinants-of-COVID-19-vaccination-worldwide-a-retrospective-observational-study,165077,0,2.html
eng
POPULATION MEDICINE
17th World Congress on Public Health Book of Abstracts
17th World Congress on Public Health
info:eu-repo/semantics/openAccess
European Publishing
oai:iris.polito.it:11583/29709842024-03-09T07:46:38Zcom_11583_2614433com_11583_2614425col_11583_2614423
2022-11-10T08:20:43Z
urn:hdl:11583/2970984
Social Equity and Urban Resilience: Investigating the capability of urban resilience theory and planning to address social equity
MOHABAT DOOST, DANIAL
VOGHERA, ANGIOLETTA
BRUNETTA, GRAZIA
MOHABAT DOOST, Danial
Settore ICAR/21 - Urbanistica
L'abstract è presente nell'allegato / the abstract is in the attachment
2022-07-25
info:eu-repo/semantics/doctoralThesis
https://hdl.handle.net/11583/2970984
eng
info:eu-repo/semantics/closedAccess
Politecnico di Torino
oai:iris.polito.it:11583/29762512024-03-20T18:00:44Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-02-22T08:24:49Z
urn:hdl:11583/2976251
Feature Selection for Cost Reduction in MCU Performance Screening
Bellarmino, Nicolo'
Cantoro, Riccardo
Huch, Martin
Kilian, Tobias
Schlichtmann, Ulf
Squillero, Giovanni
Bellarmino, Nicolo'
Cantoro, Riccardo
Huch, Martin
Kilian, Tobia
Schlichtmann, Ulf
Squillero, Giovanni
In safety-critical applications, microcontrollers must satisfy strict quality constraints and performances in terms of Fmax , that is, the maximum operating frequency. It has been demonstrated that data extracted from on-chip ring oscillators, the so-called speed monitors, can model the Fmax of integrated circuits using machine learning models. Those models are suitable for the performance screening process, and they use speed monitors are features, while the target is the Fmax. But if the number of features used for building a machine learning model is huge, the risk of over-fitting or curse of dimensionality is high, leading to a high generalization error. Also, devices with a high number of ring-oscillator are costly to be produced. This paper copes with supervised feature selection in microcontroller performance screening during the early phase of prototyping and presents methodologies to reduce the number of monitors needed to build efficient machine learning models without losing in accuracy. We propose a methodology to rank features according to their importance in the performance prediction, able to extract a subset of them drastically reduced in size, but still able to well solve the underlying task. Experiments showed that the chosen subset of features leads to simpler ML models that can achieve lower prediction error, reducing overfitting. This permits avoiding inserting the full set of sensors in the final product, with a huge saving of money and physical space in the silicon.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2976251
10.1109/LATS58125.2023.10154495
2-s2.0-85164661100
info:eu-repo/semantics/altIdentifier/isbn/979-8-3503-2597-3
https://ieeexplore.ieee.org/document/10154495
eng
24th IEEE Latin-American Test Symposium (LATS)
24th IEEE Latin-American Test Symposium (LATS)
info:eu-repo/semantics/openAccess
IEEE
oai:iris.polito.it:11583/29741312023-10-12T22:59:11Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-01-11T08:11:12Z
urn:hdl:11583/2974131
Integration of Multi-source Data to Infer Effects of Gradual Natural Phenomena on Structures
Erica Lenticchia
Gaetano Miraglia
Rosario Ceravolo
Lenticchia, Erica
Miraglia, Gaetano
Ceravolo, Rosario
Structural Health Monitoring for a real understanding of the changes taking place and their effects on the structural integrity of the built environment, sometimes it is necessary to move to long observation times. This follows the axioms of SHM, which identify a certain relationship between the frequency and time of observation and the extent (and therefore severity) of ongoing damage. For this reason, in the present paper, interferometric displacement satellite data acquired for a decade on the territory of the city of Rome (Italy) are investigated and correlated to natural phenomena. The paper critically analyzes the possibility of a relationship between these phenomena and satellite data in order to bring out a common pattern. The study of natural and anthropogenic phenomena in the same frequency bandwidth as the interferometric satellite data would therefore be useful for recognizing potential triggering causes of higher frequency phenomena, which could appear as sudden and unstable phenomena if observed with shorter times. In the paper, the authors first make a comparison between natural phenomena and satellite data on a territorial scale and then focus on a series of isolated case studies (single structures and infrastructures).
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2974131
10.1007/978-3-031-07322-9_58
2-s2.0-85134336106
info:eu-repo/semantics/altIdentifier/isbn/978-3-031-07321-2
info:eu-repo/semantics/altIdentifier/isbn/978-3-031-07322-9
eng
Lecture Notes in Civil Engineering
European Workshop on Structural Health Monitoring EWSHM 2022
info:eu-repo/semantics/openAccess
ELETTRONICO
Springer Nature
oai:iris.polito.it:11583/29832162024-03-06T04:26:07Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-12-05T10:31:53Z
urn:hdl:11583/2983216
Policy tools for Urban Agriculture. An overview of experienced solutions
Cassatella, Claudia
Cassatella, Claudia
When a city or a city region wants to take or implement UA initiatives, which policy instruments are available? A wide range of heterogeneous instruments is applied, from strategic plans to statutory plans and regulations to incentives and assessment tools. Based on the H2020 EFUA Project, this article summarizes findings from international practices and provides policy recommendations.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2983216
https://ruaf.org/assets/2023/09/RUAF-UAMagazine-39_Sept_2023_MR.pdf
eng
URBAN AGRICULTURE MAGAZINE
info:eu-repo/semantics/openAccess
ELETTRONICO
RUAF
oai:iris.polito.it:11583/29843032024-03-06T02:19:35Z
urn:hdl:11583/2984303
A Vienna, 7 piani in X-Lam
Aimar, Fabrizio
Aimar, Fabrizio
2012
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2984303
https://ilgiornaledellarchitettura.com/area-riservata/
ita
IL GIORNALE DELL'ARCHITETTURA
none
STAMPA
Società editrice Umberto Allemandi & C. spa
oai:iris.polito.it:11583/29733902023-06-29T07:04:46Zcom_11583_2614426com_11583_2614425col_11583_2614385
2023-01-04T10:58:53Z
urn:hdl:11583/2973390
Recensione di G. Simondon, Del modo di esistenza degli oggetti tecnici
isabella consolati
Consolati, Isabella
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2973390
ita
FILOSOFIA POLITICA
info:eu-repo/semantics/closedAccess
STAMPA
Il Mulino
oai:iris.polito.it:11583/29798792024-03-09T07:46:59Zcom_11583_2614433com_11583_2614425col_11583_2614423
2023-07-07T09:15:32Z
urn:hdl:11583/2979879
Additive Manufacturing of Polypropylene Composites with Enhanced Mechanical and Electrical Properties
CASAMENTO, FRANCESCO
BADINI, CLAUDIO FRANCESCO
Casamento, Francesco
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
L'abstract è presente nell'allegato / the abstract is in the attachment
2023-06-30
info:eu-repo/semantics/doctoralThesis
https://hdl.handle.net/11583/2979879
eng
info:eu-repo/semantics/openAccess
Politecnico di Torino
oai:iris.polito.it:11583/29744442024-03-10T07:09:29Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-03-17T08:49:11Z
urn:hdl:11583/2974444
A study on the statistical convergence of turbulence simulations around a cylinder
Andrea Ferrero
Francesco Larocca
Massimo Germano
Guglielmo Scovazzi
Ferrero, Andrea
Larocca, Francesco
Germano, Massimo
Scovazzi, Guglielmo
The turbulent flow around a circular cylinder at a Reynolds number equal to 3900 is studied by an implicit Large
Eddy Simulation performed by means of a discontinuous Galerkin finite element solver. The average velocity field in the wake
is evaluated and compared with experimental data from the literature. The focus of the present work is on the estimation of the
statistical uncertainty which is related to the use of a finite time window for the averaging operation. This topic represents an
open problem for both Direct Numerical Simulations and Large Eddy Simulations in which it is difficult to define a priori the size
of the time window which gives statistically converged averaged quantities. Different techniques to estimate this uncertainty are
compared in order to get a quantitative criterion for checking the convergence of statistics. In particular, the Non-Overlapping
Batch Means and the Batch Means Batch Correlations techniques are applied to the present test case.
2020
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2974444
10.1063/5.0026757
2-s2.0-85098010350
eng
{INTERNATIONAL} {CONFERENCE} {OF} {NUMERICAL} {ANALYSIS} {AND} {APPLIED} {MATHEMATICS} {ICNAAM} 2019
{INTERNATIONAL} {CONFERENCE} {OF} {NUMERICAL} {ANALYSIS} {AND} {APPLIED} {MATHEMATICS} {ICNAAM} 2019
info:eu-repo/semantics/openAccess
ELETTRONICO
AIP
oai:iris.polito.it:11583/29785352023-06-29T07:04:49Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-06-14T14:08:23Z
urn:hdl:11583/2978535
An experimental focus on learning effect and interaction quality in human–robot collaboration
Riccardo Gervasi
Luca Mastrogiacomo
Fiorenzo Franceschini
Gervasi, Riccardo
Mastrogiacomo, Luca
Franceschini, Fiorenzo
In the landscape of the emerging Industry 5.0, human–robot collaboration (HRC) represents a solution to increase the fex ibility and reconfgurability of production processes. Unlike classical industrial automation, in HRC it is possible to have direct interaction between humans and robots. Consequently, in order to efectively implement HRC it is necessary to con sider not only technical aspects related to the robot but also human aspects. The focus of this paper is to expand on previous results investigating how the learning process (i.e., the experience gained through the interaction) afects the user experience in the HRC in conjunction with diferent confguration factors (i.e., robot speed, task execution control, and proximity to robot workspace). Participants performed an assembly task in 12 diferent confgurations and provided feedback on their
experience. In addition to perceived interaction quality, self-reported afective state and stress-related physiological indica tors (i.e., average skin conductance response and heart rate variability) were collected. A deep quantitative analysis of the response variables revealed a signifcant infuence of the learning process in the user experience. In addition, the perception of some confguration factors changed during the experiment. Finally, a signifcant infuence of participant characteristics also emerged, auguring the necessity of promoting a human-centered HRC.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2978535
10.1007/s11740-023-01188-5
2-s2.0-85147105580
https://link.springer.com/article/10.1007/s11740-023-01188-5
eng
PRODUCTION ENGINEERING
info:eu-repo/semantics/openAccess
STAMPA
Springer
oai:iris.polito.it:11583/29861872024-03-23T22:37:23Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-02-26T10:45:49Z
urn:hdl:11583/2986187
Effective noisy dynamics within the phenotypic space of a growth-rate maximizing population
Batista-Tomás, A. R.
De Martino, Andrea
Mulet, Roberto
Batista-Tomás, A. R.
De Martino, Andrea
Mulet, Roberto
Microbial systems exhibit marked variability in metabolic phenotypes. A recently-proposed class of models explains this feature within a minimal mathematical setup which assumes that populations evolve towards maximum growth rate in a 'phenotypic space' subject to an intrinsic 'diffusive' stochasticity that causes small random changes in single-cell phenotypes. In such a framework, variability results from the exploration-exploitation balance between hardly accessible fast-growing phenotypes and easily accessible slow-growing ones. Here we extend the above scheme to include a degree of extrinsic noise, showing that the population dynamics over the phenotypic space is captured by an effective process that conflates both sources of randomness. This in turn leads to a simple approximation for the asymptotic distribution of the population over the phenotypic space, highlighting the connection between the strength of the noise that affects the dynamics and the degree of optimization. The theory thus obtained displays an excellent agreement with numerical simulations of low-dimensional systems.
2024
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986187
10.1016/j.physa.2023.129451
2-s2.0-85181175840
eng
PHYSICA. A
info:eu-repo/semantics/closedAccess
Elsevier
oai:iris.polito.it:11583/29825532024-03-18T21:58:06Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-10-12T13:54:21Z
urn:hdl:11583/2982553
Effect of Gestational Age on Maternofetal Vascular Function Following Single Maternal Engineered Nanoparticle Exposure
Fourniera S B
Kallontzi S
Fabris L
Love C
Stapleton P A
Fourniera, S B
Kallontzi, S
Fabris, L
Love, C
Stapleton, P A
2019
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2982553
2-s2.0-85061238741
CARDIOVASCULAR TOXICOLOGY
none
Springer
oai:iris.polito.it:11583/29774972024-03-19T18:07:13Zcom_11583_2614427com_11583_2614425col_11583_2614390
2023-03-30T09:04:48Z
urn:hdl:11583/2977497
Thiophenes and Their Benzo Derivatives: Structure
Teresa Gatti
Francesco Lamberti
Javier MartÍ-Rujas
Meng Zheng
Gatti, Teresa
Lamberti, Francesco
MartÍ-Rujas, Javier
Zheng, Meng
This article details recent advances in the structural and spectroscopic investigation of thiophene molecules and their benzo-derivatives. These species are gaining a large interest for multiple applications as organic semiconductors. Key concepts accompanying the whole discussion are those related to the double aromatic/biradicaloid and quinoidal characters that characterize these molecular materials, which have important consequences on their optoelectronic properties and thus need to be known and possibly predicted. Relevance is also given to the description of cases featuring different aggregation phenomena at the solid state, which is also central for charge transport and light emission properties.
2022
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2977497
10.1016/b978-0-12-409547-2.14774-2
2-s2.0-85143559318
info:eu-repo/semantics/altIdentifier/isbn/9780124095472
https://www.sciencedirect.com/science/article/pii/B9780124095472147742
eng
Comprehensive Heterocyclic Chemistry IV
info:eu-repo/semantics/closedAccess
Elsevier
oai:iris.polito.it:11583/29828482024-03-08T14:28:58Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-10-19T07:41:27Z
urn:hdl:11583/2982848
LEMMS: Label Estimation of Multi-Feature Movie Segments
Vacchetti Bartolomeo
Dawit Mureja
Cerquitelli Tania
Vacchetti, Bartolomeo
Dawit, Mureja
Cerquitelli, Tania
In the last few years, there has been an increasing amount of methods and algorithms that approach and automate different video and image editing tasks. A task that so far has not been investigated too much in depth is the analysis of video editing patterns. In this work, we present LEMMS (Label Estimation of Multi-feature Movie Segments), a methodology to analyze and label 30-second long movie editing patterns based on the following editing features: shot size, shot subject, editing pace, and editing trend. LEMMS can identify more or less fine-grained editing classes using a multi-clustering approach. To evaluate the robustness of LEMMS in assigning correct labels the performance of an LSTM classifier is analyzed. For our study, we extracted 24 363 segments of movie scenes from the AVE dataset. The performance of LEMMS in semi-automatic label identification for 30-second long movie segments is accurate, as the proposed approach has an overall accuracy of 92.8% for 50 classes.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2982848
10.1109/ICCVW60793.2023.00325
2-s2.0-85182923466
info:eu-repo/semantics/altIdentifier/isbn/979-8-3503-0744-3
https://ieeexplore.ieee.org/document/10350588
https://cveu.github.io/2023/papers/14.pdf
eng
2023 IEEE/CVF International Conference on Computer Vision Workshops (ICCVW)
ICCV 2023 Workshop on AI for Creative Video Editing and Understanding
info:eu-repo/semantics/openAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29865812024-03-08T04:42:50Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-03-06T10:08:19Z
urn:hdl:11583/2986581
Un confronto sull’invecchiamento in città:Prospettive di design sistemico dalla cura comunitaria all’invecchiamento urbano a Shanghai e Torino
Wen Lu
Silvia Barbero
Amina Pereno
Lu, Wen
Barbero, Silvia
Pereno, Amina
2024
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986581
https://www.officinajournal.it/officina/index.php/journal/article/view/44_4/79
ita
OFFICINA
info:eu-repo/semantics/openAccess
Anteferma edizioni
oai:iris.polito.it:11583/29836072024-01-03T00:23:12Zcom_11583_2614427com_11583_2614425col_11583_2614390
2024-01-02T22:25:12Z
urn:hdl:11583/2983607
Technological innovation research group, Politecnico di Torino
Alessi, L.
Cantamessa, M.
Alessi, L.
Cantamessa, M.
2005
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2983607
10.1007/978-1-84628-061-0_40
2-s2.0-84889962199
info:eu-repo/semantics/altIdentifier/isbn/978-1-85233-701-8
info:eu-repo/semantics/altIdentifier/isbn/978-1-84628-061-0
eng
Design Process Improvement: A Review of Current Practice
none
Springer
oai:iris.polito.it:11583/29753902024-03-18T18:48:15Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-01-31T08:14:22Z
urn:hdl:11583/2975390
Productivity Enhancement in Directed Energy Deposition: The Oscillating Scanning Strategy Approach
Aversa, A
Carrozza, A
Marchese, G
Felicioni, S
De Chirico, M
Lombardi, M
Bondioli, F
Fino, P
Aversa, A
Carrozza, A
Marchese, G
Felicioni, S
De Chirico, M
Lombardi, M
Bondioli, F
Fino, P
Directed Energy Deposition (DED) is an additive manufacturing process that enables the production of large metal components by melting the feedstock material while being deposited. An improvement of the production speed of this process would further increase its applicability in many industrial fields. The DED building rate is strictly related to the building parameters adopted, in particular to the laser spot diameter, which also affects the build accuracy and the surface quality of the components. The possibility of using a variable laser spot would result in a significant increase in the production rate in bulky zones, while also providing a good surface quality where needed. In the present work, an oscillating scanning strategy was used to create a large apparent laser spot (+ 170% of the nominal value) to produce 316L stainless steel samples via DED. The optimisation of the DED parameters with the oscillating strategy was performed using the single scan tracks (SSTs) approach. The morphologies of the SSTs obtained with different process parameters were assessed and the geometrical features related to the melt pools were analysed in order to select the most suitable X and Z displacements for the production of the cubic samples. The analyses of the cubes revealed that, if the correct overlap among nearby scans is selected, it is possible to obtain dense samples with all the oscillating diameters tested. Finally, comparing the building rate and powder efficiency values confirmed that this method can accelerate the building process and improve its overall performance.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2975390
10.1007/s12540-022-01356-9
2-s2.0-85145231475
https://link.springer.com/article/10.1007/s12540-022-01356-9
eng
METALS AND MATERIALS INTERNATIONAL
info:eu-repo/semantics/openAccess
Springer; Korean Inst Metals Materials
oai:iris.polito.it:11583/29827192024-03-06T02:12:02Zcom_11583_2614433com_11583_2614425col_11583_2614423
2023-11-21T15:25:04Z
urn:hdl:11583/2982719
From concept definition to full-scale demonstration of a novel hybrid single buoy wave energy converter to produce electricity and fresh water
RAVA, MARCELLO
MATTIAZZO, GIULIANA
BRACCO, GIOVANNI
Rava, Marcello
Settore ING-IND/13 - Meccanica Applicata alle Macchine
L'abstract è presente nell'allegato / the abstract is in the attachment
2023-09-12
info:eu-repo/semantics/doctoralThesis
https://hdl.handle.net/11583/2982719
eng
info:eu-repo/semantics/openAccess
Politecnico di Torino
oai:iris.polito.it:11583/29767522024-03-22T23:00:55Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-03-24T11:34:52Z
urn:hdl:11583/2976752
Broken ergodicity and memory in the minority game
Heimel J. A. F.
De Martino A.
Heimel, J. A. F.
De Martino, A.
We study the dynamics of the 'batch' minority game with market-impact correction using generating functional techniques to carry out the quenched disorder average. We find that the assumption of weak long-term memory, which one usually makes in order to calculate ergodic stationary states, breaks down when the persistent autocorrelation becomes larger than cc ≃ 0.772. We show that this condition, remarkably, coincides with the AT line found in an earlier static calculation. This result suggests a new scenario for ergodicity breaking in disordered systems.
2001
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2976752
10.1088/0305-4470/34/40/103
2-s2.0-0035851084
https://iopscience.iop.org/article/10.1088/0305-4470/34/40/103
eng
JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL
info:eu-repo/semantics/closedAccess
IOP
oai:iris.polito.it:11583/29775892024-01-27T00:52:24Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-05-10T10:42:01Z
urn:hdl:11583/2977589
L’eredità di John Ruskin a Venezia alle soglie del XX secolo: il dibattito sull’approvazione del regolamento edilizio del 1901
Mezzalama, Giulia
Mezzalama, Giulia
The paper deals with the Venetian debate on the new building code approved in 1901 and the influence of Ruskin’s ideas on it. Several personalities in Venice cultural circles, the Ruskin’s successors, militated against the brusque modern transformation of the Venetian cityscape due for example, to the introduction of cast-iron architectural elements on the facades of the ancient buildings. The new building code was so conceived as a new tool for protecting the beauty of the city, the so called “urban aesthetics”.
2020
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2977589
https://issuu.com/dida-unifi/docs/volume_2/1
ita
RESTAURO ARCHEOLOGICO
info:eu-repo/semantics/openAccess
STAMPA
Firenze University Press
oai:iris.polito.it:11583/29782992024-03-18T20:42:03Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-06-20T09:52:51Z
urn:hdl:11583/2978299
Hygro-elastic coupling in a 3D exact shell model for bending analysis of layered composite structures
Salvatore Brischetto
Domenico Cesare
Brischetto, Salvatore
Cesare, Domenico
In this work, a 3D fully coupled hygro-elastic model is proposed. The moisture content
profile is a primary variable of the model’s displacements. This generic fully coupled 3D exact shell
model allows the investigations into the consequences arising from moisture content and elastic
fields in terms of stresses and deformations on different plate and shell configurations embedded in
composite and laminated layers. Cylinders, plates, cylindrical and spherical shells are analyzed in
the orthogonal mixed curvilinear reference system. The 3D equilibrium equations and the 3D Fick
diffusion equation for spherical shells are fully coupled in a dedicated system. The main advantage
of the orthogonal mixed curvilinear coordinates is related to the degeneration of the equations for
spherical shells to simpler geometries thanks to basic considerations of the radii of curvature. The
exponential matrix method is used to solve this fully coupled model based on partial differential
equations in the thickness direction. The closed-form solution is related to simply supported sides
and harmonic forms for displacements and the moisture content. The moisture content amplitudes
are directly applied at the top and bottom outer faces through steady-state hypotheses. The final
system is based on a set of coupled homogeneous second-order differential equations. A first-order
differential equation system is obtained by redoubling the number of variables. The moisture field
implications are evaluated for the static analysis of the plates and shells in terms of displacement
and stress components. After preliminary validations, new benchmarks are proposed for several
thickness ratios, geometrical and material data, lamination sequences and moisture values imposed
at the external surfaces. In the proposed results, there is clearly accordance between the uncoupled
hygro-elastic model (where the 3D Fick diffusion law is separately solved) and this new fully coupled
hygro-elastic model: the differences between the investigated variables (displacements, moisture
contents, stresses and strains) are always less than 0.3%. The main advantages of the 3D coupled
hygro-elastic model are a more compact mathematical formulation and lower computational costs.
Both effects connected with the thickness layer and the embedded materials are included in the
conducted hygro-elastic analyses.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2978299
10.3390/jcs7050183
2-s2.0-85160358658
https://www.mdpi.com/2504-477X/7/5/183
eng
JOURNAL OF COMPOSITES SCIENCE
info:eu-repo/semantics/openAccess
MDPI
oai:iris.polito.it:11583/29818472024-03-27T11:15:24Zcom_11583_2614427com_11583_2614425col_11583_2614390
2023-09-14T20:13:50Z
urn:hdl:11583/2981847
Satellite hail detection
Battaglia, Alessandro
Mroz, Kamil
Cecil, Daniel
Battaglia, Alessandro
Mroz, Kamil
Cecil, Daniel
2022
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2981847
10.1016/B978-0-12-822973-6.00006-8
2-s2.0-85175283390
info:eu-repo/semantics/altIdentifier/isbn/9780128229736
https://shop.elsevier.com/books/precipitation-science/michaelides/978-0-12-822973-6
eng
Precipitation Science Measurement, Remote Sensing, Microphysics and Modeling
info:eu-repo/semantics/closedAccess
STAMPA
Elsevier
oai:iris.polito.it:11583/29715852024-03-23T02:17:18Zcom_11583_2614426com_11583_2614425col_11583_2614388
2022-09-23T09:44:16Z
urn:hdl:11583/2971585
Myocardial fibrosis detection using kernel methods: preliminary results from a cardiac magnetic resonance study
Campese, S
Agostini, F
Sciarretta, T
Pizzi, M
Cipriani, A
Zanetti, M
Campese, S
Agostini, F
Sciarretta, T
Pizzi, M
Cipriani, A
Zanetti, M
2022
info:eu-repo/semantics/article
http://hdl.handle.net/11583/2971585
10.1093/ehjci/jeac141.005
https://doi.org/10.1093/ehjci/jeac141.005
eng
EUROPEAN HEART JOURNAL. CARDIOVASCULAR IMAGING
info:eu-repo/semantics/openAccess
Oxford Academic
oai:iris.polito.it:11583/29708562023-06-29T07:04:56Zcom_11583_2614429com_11583_2614425col_11583_2614405
2022-10-25T13:32:32Z
urn:hdl:11583/2970856
Information mining of customers preferences for product specifications determination using big sales data
Zhang J.
Lin P.
Simeone A.
Zhang, J.
Lin, P.
Simeone, A.
Product competitiveness is highly influenced by its related design specifications. Information retrieval of customers preferences for the specification determination is essential to product design and development. Big sales data is an emerging resource for mining customers preferences on product specifications. In this work, information entropy is used for customers preferences information quantification on product specifications firstly. Then, a method of information mining for customers preferences estimation is developed by using big sales data. On this basis, a density-based clustering analysis is carried out on customers preferences as a decision support tool for the determination and selection of product design specifications. A case study related to electric bicycle specifications determination using big sales data is reported to illustrate and validate the proposed method
2022
info:eu-repo/semantics/conferenceObject
http://hdl.handle.net/11583/2970856
10.1016/j.procir.2022.05.221
2-s2.0-85133507217
https://www.sciencedirect.com/science/article/pii/S2212827122006692
eng
Procedia CIRP
32nd CIRP Design Conference, CIRP Design 2022
info:eu-repo/semantics/openAccess
ELETTRONICO
Elsevier
oai:iris.polito.it:11583/29829022024-03-06T04:06:08Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-10-24T07:35:33Z
urn:hdl:11583/2982902
On two-boundary first exit time of Gauss-diffusion processes: closed-form results and biological modeling
G. D'Onofrio
E. Pirozzi
D'Onofrio, G.
Pirozzi, E.
2015
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2982902
https://dimie.unibas.it/site/home/info/articolo3003835.html
eng
LECTURE NOTES OF SEMINARIO INTERDISCIPLINARE DI MATEMATICA
info:eu-repo/semantics/openAccess
Università degli Studi della Basilicata
oai:iris.polito.it:11583/29708672024-03-09T06:15:17Zcom_11583_2614428com_11583_2614425col_11583_2614397
2022-09-05T09:05:20Z
urn:hdl:11583/2970867
«L'état dans l'État». Territori e architetture della Sacra Religione allo specchio
Chiara Devoti
Devoti, Chiara
«L’état dans l’État», secondo la locuzione volteriana, indica quella precisa condizione di “eccezionalità” che ha caratterizzato un patrimonio dall’estensione imponente, quello della Sacra Religione dei Santi Maurizio e Lazzaro. Oggetto di costante attenzione nel corso dei secoli, i beni che lo compongono sono stati rappresentati come elemento forte del loro possesso e della loro condizione speciale, ma sono anche stati oggetto di dettagliate ricognizioni e descrizioni in grado
di offrire l’immagine di un patrimonio allo specchio, quello specchio che l’Ordine stesso si costruisce e nel quale si riflette, anche proprio attraverso le sue narrazioni e le sue rappresentazioni.
Con un approccio inedito rispetto agli studi precedentemente condotti, questo volume segue un originale percorso d’indagine che si configura in modo innovativo e si può definire come una sorta di “narrazione che si costruisce attorno ad altre narrazioni”. Si tratta in effetti, oltre che di una solida trattazione in grado di indagare la natura di questo patrimonio, della trascrizione accurata di una selezionata serie di documenti, chiosati con una messe di note tale da sovrastare talvolta i testi prescelti, che si configurano tuttavia come imprescindibile nucleo espositivo centrale.
Non una semplice e lunga lista di beni, per quanto questa possa rappresentare un’utile guida alla comprensione dell’organizzazione dell’Ordine – vero “stato nello Stato” – quanto piuttosto un’immagine autentica di quello stesso patrimonio, restituito e riflesso appunto in uno specchio assolutamente veritiero. Si tratta di un processo logico e narrativo diverso che si decide di mettere in campo, accettando l’estensione integrale della trascrizione per consentire che siano le carte stesse a parlare, con le loro formule talvolta stereotipate, le eccessive ampollosità, o talora, al contrario, la concisione quasi inquietante, provvedendo a suggerire con cura un’articolata scelta dei tipi di
documenti selezionati. Ogni relazione, annotazione, testimoniale di Stato, selezionato per la sua capacità di offrire uno spaccato – letto dall’interno della stessa Sacra Religione – della natura e delle logiche che hanno guidato e condotto alla costituzione di questo cospicuo patrimonio rappresenta infatti uno spaccato inedito di architetture e territori (dalla Prefazione di Costanza Roggero).
2022
info:eu-repo/semantics/book
http://hdl.handle.net/11583/2970867
10.26344/PoliFOM22
info:eu-repo/semantics/altIdentifier/isbn/978-88-8262-316-6
ita
info:eu-repo/semantics/closedAccess
STAMPA
Centro Studi Piemontesi
oai:iris.polito.it:11583/29856002024-02-03T01:02:34Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-02-02T08:21:08Z
urn:hdl:11583/2985600
Predicting the Robustness of Large Real-World Social Networks Using a Machine Learning Model
Nguyen, Ngoc-Kim-Khanh
Nguyen, Quang
Pham, Hai-Ha
Le, Thi-Trang
Nguyen, Tuan-Minh
Cassi, Davide
Scotognella, Francesco
Alfierif, Roberto
Bellingeri, Michele
Nguyen, Ngoc-Kim-Khanh
Nguyen, Quang
Pham, Hai-Ha
Le, Thi-Trang
Nguyen, Tuan-Minh
Cassi, Davide
Scotognella, Francesco
Alfierif, Roberto
Bellingeri, Michele
Computing the robustness of a network, i.e., the capacity of a network holding its main functionality when a proportion of its nodes/edges are damaged, is useful in many real applications. The Monte Carlo numerical simulation is the commonly used method to compute network robustness. However, it has a very high computational cost, especially for large networks. Here, we propose a methodology such that the robustness of large real-world social networks can be predicted using machine learning models, which are pretrained using existing datasets. We demonstrate this approach by simulating two effective node attack strategies, i.e., the recalculated degree (RD) and initial betweenness (IB) node attack strategies, and predicting network robustness by using two machine learning models, multiple linear regression (MLR) and the random forest (RF) algorithm. We use the classic network robustness metric R as a model response and 8 network structural indicators (NSI) as predictor variables and trained over a large dataset of 48 real-world social networks, whose maximum number of nodes is 265,000. We found that the RF model can predict network robustness with a mean squared error (RMSE) of 0.03 and is 30% better than the MLR model. Among the results, we found that the RD strategy has more efficacy than IB for attacking real-world social networks. Furthermore, MLR indicates that the most important factors to predict network robustness are the scale-free exponent α and the average node degree . On the contrary, the RF indicates that degree assortativity a, the global closeness, and the average node degree are the most important factors. This study shows that machine learning models can be a promising way to infer social network robustness.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2985600
10.1155/2022/3616163
2-s2.0-85160609063
https://www.hindawi.com/journals/complexity/2022/3616163/
eng
COMPLEXITY
info:eu-repo/semantics/openAccess
Wiley - Hindawi
oai:iris.polito.it:11583/29775642023-09-20T23:07:44Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-03-29T09:06:43Z
urn:hdl:11583/2977564
Review on the Experimental Characterization of Fracture in Active Material for Lithium-Ion Batteries
Francesca Pistorio
Davide Clerici
Francesco Mocera
Aurelio Soma
Pistorio, Francesca
Clerici, Davide
Mocera, Francesco
Soma, Aurelio
Nowadays, lithium-ion batteries are one of the most widespread energy storage systems, being extensively employed in a large variety of applications. A significant effort has been made to develop advanced materials and manufacturing processes with the aim of increasing batteries performance and preserving nominal properties with cycling. Nevertheless, mechanical degradation is still a significant damaging mechanism and the main cause of capacity fade and power loss. Lithium ions are inserted and extracted into the lattice structure of active materials during battery operation, causing the deformation of the crystalline lattice itself. Strain mismatches within the different areas of the active material caused by the inhomogeneous lithium-ions concentration induce mechanical stresses, leading ultimately to fracture, fatigue issues, and performance decay. Therefore, a deep understanding of the fracture mechanics in active materials is needed to meet the rapidly growing demand for next-generation batteries with long-term stability, high safety, excellent performance, and long life cycle. This review aims to analyze the fracture mechanics in the active material microstructure of electrodes due to battery operations from an experimental point of view. The main fracture mechanisms occurring in the common cathode and anode active materials are described, as well as the factors triggering and enhancing fracture. At first, the results obtained by performing microscopy and diffraction analysis in different materials are discussed to provides visual evidence of cracks and their relation with lattice structure. Then, fatigue phenomena due to crack growth as a function of the number of cycles are evaluated to assess the evolution of damage during the life cycle, and the effects of fracture on the battery performance are described. Finally, the literature gaps in the characterization of the fracture behavior of electrode active materials are highlighted to enhance the development of next-generation lithium-ion batteries.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2977564
10.3390/en15239168
2-s2.0-85143803393
https://www.mdpi.com/1996-1073/15/23/9168
eng
ENERGIES
info:eu-repo/semantics/openAccess
MDPI
oai:iris.polito.it:11583/29700842024-03-06T04:03:35Zcom_11583_2614427com_11583_2614425col_11583_2614390
2023-02-16T11:21:56Z
urn:hdl:11583/2970084
Education and inspiration: WISE at CAT
andrea bocco
martina bocci
Andrea Bocco
Bocco, Andrea
Bocci, Martina
Pat Borer and David Lea designed the Wales Institute for Sustainable Education (WISE), a 2,000 m2 education centre located at the Centre for Alternative Technology (CAT).
2020
info:eu-repo/semantics/bookPart
https://hdl.handle.net/11583/2970084
info:eu-repo/semantics/altIdentifier/isbn/3868595694
ovis.de/en/books/houses/vegetarian-architecture.html#:~:text=This book showcases buildings based,landscape restoration, and community revitalization.
eng
Vegetarian Architecture. Case studies on building and nature
info:eu-repo/semantics/closedAccess
STAMPA
Jovis Verlag GmbH
oai:iris.polito.it:11583/29855472024-03-13T22:39:47Zcom_11583_2614426com_11583_2614425col_11583_2614384
2024-01-31T07:41:03Z
urn:hdl:11583/2985547
Engineering the Electrical and Optical Properties of WS2 Monolayers via Defect Control
Bianchi, Michele Giovanni
Risplendi, Francesca
Re Fiorentin, Michele
Cicero, Giancarlo
Bianchi, Michele Giovanni
Risplendi, Francesca
Re Fiorentin, Michele
Cicero, Giancarlo
Two-dimensional (2D) materials as tungsten disulphide (WS2 ) are rising as the ideal platform for the next generation of nanoscale devices due to the excellent electric-transport and optical properties. However, the presence of defects in the as grown samples represents one of the main limiting factors for commercial applications. At the same time, WS2 properties are frequently tailored by introducing impurities at specific sites. Aim of this review paper is to present a complete description and discussion of the effects of both intentional and unintentional defects in WS2 , by an in depth analysis of the recent experimental and theoretical investigations reported in the literature. First, the most frequent intrinsic defects in WS2 are presented and their effects in the readily synthetized material are discussed. Possible solutions to remove and heal unintentional defects are also analyzed. Following, different doping schemes are reported, including the traditional substitution approach and innovative techniques based on the surface charge transfer with adsorbed atoms or molecules. The plethora of WS2 monolayer modifications presented in this review and the systematic analysis of the corresponding optical and electronic properties, represent strategic degrees of freedom the researchers may exploit to tailor WS2 optical and electronic properties for specific device applications.
2024
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2985547
10.1002/advs.202305162
2-s2.0-85178306406
https://onlinelibrary.wiley.com/doi/full/10.1002/advs.202305162
eng
ADVANCED SCIENCE
info:eu-repo/semantics/openAccess
ELETTRONICO
Wiley-VCH
oai:iris.polito.it:11583/29814152024-03-21T20:24:35Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-08-31T08:13:35Z
urn:hdl:11583/2981415
UV-Curing Additive Manufacturing of Bio-Based Thermosets: Effect of Diluent Concentration on Printing and Material Properties of Itaconic Acid-Based Materials
Papadopoulos, L
Pezzana, L
Malitowski, NM
Sangermano, M
Bikiaris, DN
Robert, T
Papadopoulos, L
Pezzana, L
Malitowski, Nm
Sangermano, M
Bikiaris, Dn
Robert, T
In the quest toward sustainable thermosets, researchhas been conductedon various polymer classes like epoxy, benzoxazines, acryl-/methacrylates,etc. One particular group that can also be utilized as sustainableinks for additive manufacturing is itaconic acid-based unsaturatedpolyester resins. However, due to increased viscosity of the resins,the use of reactive diluents is required to increase their processability.While research has focused on creating different polymeric structuresto expand the possible applications, the required amount of diluenthas not received equal attention. In this work, a group of itaconicacid-based polyesters was synthesized to create a series of formulationswith different reactive diluent contents. The physicochemical propertiesof the prepared formulations, along with their reactivity toward UVlight, were assessed via photo-differential scanning calorimetry (photo-DSC),real-time attenuated total reflectance (RT-ATR), and photorheologymeasurements. The same formulations were then used to fabricate testspecimens via digital light processing (DLP) three-dimensional (3D)printing, which were examined as to their thermomechanical propertiesby means of dynamic mechanical analysis (DMA) and thermogravimetricanalysis (TGA) measurements.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2981415
10.1021/acsomega.3c02808
2-s2.0-85169027929
https://pubs.acs.org/doi/10.1021/acsomega.3c02808
eng
ACS OMEGA
info:eu-repo/semantics/openAccess
American Chemical Society
oai:iris.polito.it:11583/29809312024-03-06T02:14:56Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-08-31T12:37:45Z
urn:hdl:11583/2980931
MERGE: Meta Reinforcement Learning for Tunable RL Agents at the Edge
Sharda Tripathi
Carla Fabiana Chiasserini
Tripathi, Sharda
Chiasserini, Carla Fabiana
The efficient allocation of radio resources is an essential trait of 5G/6G radio access networks (RANs), as they are called to meet diverse QoS requirements of highly demanding applications. To equip RANs with such an ability and, at the same time, meet their function split constraints, we envision a distributed learning approach for radio resource allocation that makes the most out of the Central Unit (CU) and Distributed Unit (DU) components by effectively exploiting their synergy. On the one hand, our solution, named MERGE, leverages the knowledge of the radio connectivity dynamics that each DU can acquire through the local use of a deep reinforcement learning radio agent. On the other hand, it lets the CU collect such agents in a crowdsourcing fashion, and, then, thanks to a meta-learning policy, properly select and aggregate them to create up-to-date radio agents of the right size (hence, complexity level) to fit the computing constraints of the individual DUs. Our results show that MERGE can match the performance of the highest- complexity radio model with 25% less computational require- ments, and, for a given computational resource, it outperforms a single pruned model with a 19% increase in QoS.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2980931
eng
IEEE GLOBECOM 2023
IEEE GLOBECOM 2023
info:eu-repo/semantics/closedAccess
IEEE
oai:iris.polito.it:11583/29708892023-06-29T07:05:00Zcom_11583_2614429com_11583_2614425col_11583_2614405
2022-09-06T10:02:15Z
urn:hdl:11583/2970889
Modelling and techno-economic analysis of Peer-to-Peer electricity trading systems in the context of Energy Communities
Schiera, Daniele Salvatore
De Vizia, Claudia
Zarri, Andrea
Borchiellini, Romano
Lanzini, Andrea
Patti, Edoardo
Bottaccioli, Lorenzo
Schiera, Daniele Salvatore
De Vizia, Claudia
Zarri, Andrea
Borchiellini, Romano
Lanzini, Andrea
Patti, Edoardo
Bottaccioli, Lorenzo
The increasing penetration of Renewable Energy Resources (RES) is an opportunity to empower citizens to actively participate in energy markets through energy communities. At the local level, the Peer-to-Peer (P2P) trade and exchange of renewable energy represents a valid solution to fulfil the energy demand of the members, increase self-consumption and obtain economic benefits. However, a proper evaluation of the benefits for the community would require new considerations in designing typologies, composition, sharing and pricing mechanisms. Based on these premises, this paper explores the possible influences of different community-based P2P trading systems by examining several categories, ranging from aggregation structures, market mechanisms, sharing policies and pricing mechanisms internal to the local market. Furthermore, a flexible Mixed Integer Linear Programming model was formulated to optimise the day-ahead scheduling of community members participating in the P2P energy market. In this way, different community types, sharing policies, and pricing mechanisms were tested. Finally, the optimisation results were evaluated based on several key parameters.
2022
info:eu-repo/semantics/conferenceObject
http://hdl.handle.net/11583/2970889
10.1109/EEEIC/ICPSEurope54979.2022.9854537
2-s2.0-85137985883
info:eu-repo/semantics/altIdentifier/isbn/978-1-6654-8537-1
https://ieeexplore.ieee.org/document/9854537
eng
Proceedings of 2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
info:eu-repo/semantics/openAccess
IEEE
oai:iris.polito.it:11583/29771342024-03-16T03:16:38Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-04-03T13:09:17Z
urn:hdl:11583/2977134
On the effect of the tip clearance on the aerodynamic and aeroacoustics of a diffuser-augmented wind turbine
Avallone F.
Casalino D.
Ragni D.
Avallone, F.
Casalino, D.
Ragni, D.
2019
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2977134
10.2514/6.2019-1294
2-s2.0-85083944854
info:eu-repo/semantics/altIdentifier/isbn/978-1-62410-578-4
Titolo volume non avvalorato
AIAA Scitech 2019 Forum
none
American Institute of Aeronautics and Astronautics, Inc.
oai:iris.polito.it:11583/29867552024-03-23T18:01:02Z
urn:hdl:11583/2986755
Determination of tungsten sources in the JET-ILW divertor by spectroscopic imaging in the presence of a strong plasma continuum
Huber, A.
Brezinsek, S.
Kirschner, A.
Ström, P.
Sergienko, G.
Huber, V.
Borodkina, I.
Douai, D.
Jachmich, S.
Linsmeier, C. h.
Lomanowski, B.
Matthews, G. F.
Mertens, P. h.
Subba, F.
Huber, A.
Brezinsek, S.
Kirschner, A.
Ström, P.
Sergienko, G.
Huber, V.
Borodkina, I.
Douai, D.
Jachmich, S.
Linsmeier, C. h.
Lomanowski, B.
Matthews, G. F.
Mertens, P. h.
Subba, F.
The identification of the sources of atomic tungsten and the measurement of their radiation distribution in front of all plasma-facing components has been performed in JET with the help of two digital cameras with the same two-dimensional view, equipped with interference filters of different bandwidths centred on the W I (400.88 nm) emission line. A new algorithm for the subtraction of the continuum radiation was successfully developed and is now used to evaluate the W erosion even in the inner divertor region where the strong recombination emission is dominating over the tungsten emission. Analysis of W sputtering and W redistribution in the divertor by video imaging spectroscopy with high spatial resolution for three different magnetic configurations was performed. A strong variation of the emission of the neutral tungsten in toroidal direction and corresponding W erosion has been observed. It correlates strongly with the wetted area with a maximal W erosion at the edge of the divertor tile.
2019
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2986755
10.1016/j.nme.2018.12.009
2-s2.0-85058552880
eng
NUCLEAR MATERIALS AND ENERGY
none
ELSEVIER
oai:iris.polito.it:11583/29762142024-03-10T07:06:43Zcom_11583_2614429com_11583_2614425col_11583_2614405
2023-03-22T16:00:17Z
urn:hdl:11583/2976214
Wave energy converters technology database for a web-based platform for evaluating wave energy resource and productivity potential
Giorgi G.
Novo R.
Cervelli G.
Bracco G.
Giorgi, G.
Novo, R.
Cervelli, G.
Bracco, G.
Wave energy is gaining increasing attention in worldwide energy planning strategies as key enabling factor for reaching the ambitious carbon neutrality targets. Therefore, a seamless access to the energy resource is needed, as well as the productivity of various wave energy converters, to probe the potential of installing farms in a given location. This paper presents and uses the novel web-based MORE-EST Platform (Marine Offshore Renewable Energy – Energy Security Transition), which aggregates information for wave resource assessment, bathymetry and marine space use. This work includes the mathematical modelling of the underlying technology database: 1) an Oscillating Surge Wave Energy Converter, to discuss the importance of including directionality in productivity assessment; 2) a Heaving Point Absorber and its techno-economic optimisation, comparing various proxies for capital expenditures. Results demonstrate that: 1) neglecting directionality may lead to errors in the productivity estimation, up to 31% in a site with a narrow wave rose, and up to 46% in a site with a widespread wave rose; 2) different optimisation objectives lead to dramatically different devices.
2022
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2976214
10.1201/9781003360773-5
2-s2.0-85145586143
info:eu-repo/semantics/altIdentifier/isbn/9781003360773
eng
Trends in Renewable Energies Offshore
RENEW
info:eu-repo/semantics/closedAccess
ELETTRONICO
CRC Press
oai:iris.polito.it:11583/29727082024-03-21T19:39:12Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-11-03T07:56:57Z
urn:hdl:11583/2972708
Integrated approach for the inspection and special maintenance of Italian motorway tunnels: the Scampitella case
Saverio,Agresti
Marco, Barla
Alessandra, Insana
Alessandra, Marchiondelli
Placido, Migliorino
Elisa, Rosso
Alberto, Selleri
Beatrice, Spina
Agresti, Saverio
Barla, Marco
Insana, Alessandra
Marchiondelli, Alessandra
Migliorino, Placido
Rosso, Elisa
Selleri, Alberto
Spina, Beatrice
Italian motorways were built since 1921 and they include many engineering structures subjected to decay and aging over time. Among these, tunnels are currently being inspected and rehabilitated using a systematic approach described in the tunnels inspection manual [1]. The aim of this paper is to describe an example of the assessment stage and of the repair works performed for the Scampitella tunnel, an Italian motorway tunnel located on the A16 motorway in the Avellino province. This tunnel was characterised by many defects and voids in the shallow portions of the concrete lining, in addition to the presence of cracks and the non-compliance of the
minimum vertical clearance in some sections. The repair works, whose phases are here described, consisted of the partial or integral demolition and rebuilding of the tunnel crown and, in some sections, of the springlines as well.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2972708
eng
GALLERIE E GRANDI OPERE SOTTERRANEE
info:eu-repo/semantics/closedAccess
STAMPA
Patron
oai:iris.polito.it:11583/29817572024-03-17T17:33:21Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-09-13T08:38:40Z
urn:hdl:11583/2981757
Tidying up the conformational ensemble of a disordered peptide by computational prediction of spectroscopic fingerprints
Michaelis, Monika
Cupellini, Lorenzo
Mensch, Carl
Perry, Carole C
Delle Piane, Massimo
Colombi Ciacchi, Lucio
Michaelis, Monika
Cupellini, Lorenzo
Mensch, Carl
Perry, Carole C
Delle Piane, Massimo
Colombi Ciacchi, Lucio
The most advanced structure prediction methods are powerless in exploring the conformational ensemble of disordered peptides and proteins and for this reason the "protein folding problem" remains unsolved. We present a novel methodology that enables the accurate prediction of spectroscopic fingerprints (circular dichroism, infrared, Raman, and Raman optical activity), and by this allows for "tidying up" the conformational ensembles of disordered peptides and disordered regions in proteins. This concept is elaborated for and applied to a dodecapeptide, whose spectroscopic fingerprint is measured and theoretically predicted by means of enhanced-sampling molecular dynamics coupled with quantum mechanical calculations. Following this approach, we demonstrate that peptides lacking a clear propensity for ordered secondary-structure motifs are not randomly, but only conditionally disordered. This means that their conformational landscape, or phase-space, can be well represented by a basis-set of conformers including about 10 to 100 structures. The implications of this finding have profound consequences both for the interpretation of experimental electronic and vibrational spectral features of peptides in solution and for the theoretical prediction of these features using accurate and computationally expensive techniques. The here-derived methods and conclusions are expected to fundamentally impact the rationalization of so-far elusive structure-spectra relationships for disordered peptides and proteins, towards improved and versatile structure prediction methods.
2023
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2981757
10.1039/d3sc02202a
2-s2.0-85167365933
https://pubs.rsc.org/en/content/articlelanding/2023/SC/D3SC02202A
eng
CHEMICAL SCIENCE
info:eu-repo/semantics/openAccess
Royal Society of Chemistry
oai:iris.polito.it:11583/29851532024-03-19T03:30:04Zcom_11583_2614429com_11583_2614425col_11583_2614405
2024-01-19T10:56:11Z
urn:hdl:11583/2985153
Impact of Current Collecting Grids on the Scalability of 3-Terminal Perovskite/Silicon Tandems with Bipolar Transistor Architecture
Giliberti, Gemma
Cappelluti, Federica
Giliberti, Gemma
Cappelluti, Federica
The heterojunction bipolar transistor (HBT) structure is an attractive solution for developing three-terminal perovskite/silicon tandem solar cells compatible with dominant
silicon photovoltaic devices, such as PERC and heterojunction.
However, in contrast to three-terminal tandems based on interdigitated back contact silicon cells, the three-terminal HBT requires the implementation of the third contact at the base (middle) layer. To this aim, the simplest solution is to access the base layer from the cell front side by implementing a grid layout with top interdigitated contacts (TIC). In this work, we elaborate on the feasibility of the HBT structure for 3T perovskite/silicon tandem solar cells. We report, based on optical and drift-diffusion simulations, proof-of-concept designs with high efficiency potential, and we analyze, with the aid of circuit
level simulations, the implications of a TIC grid layout in the perspective of scaling up to large areas. Our results show that the HBT architecture is a promising candidate for developing 3T perovskite/silicon tandem solar cells compatible with industry
standard silicon photovoltaics.
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2985153
10.1109/PVSC48320.2023.10360071
2-s2.0-85182782557
info:eu-repo/semantics/altIdentifier/isbn/978-1-6654-6059-0
https://ieeexplore.ieee.org/abstract/document/10360071
eng
Photovoltaic Specialists Conference
IEEE 50th Photovoltaic Specialists Conference (PVSC)
info:eu-repo/semantics/openAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29774882024-03-23T19:29:55Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-03-29T12:47:35Z
urn:hdl:11583/2977488
Arene C–H insertion catalyzed by ferrocene covalently heterogenized on graphene acid
Mosconi D.
Blanco M.
Gatti T.
Calvillo L.
Otyepka M.
Bakandritsos A.
Menna E.
Agnoli S.
Granozzi G.
Mosconi, D.
Blanco, M.
Gatti, T.
Calvillo, L.
Otyepka, M.
Bakandritsos, A.
Menna, E.
Agnoli, S.
Granozzi, G.
The heterogenation of molecular catalysts on solid supports is a viable route for the preparation of hybrid materials that combine the high selectivity and activity of homogeneous active species with the enhanced stability and recyclability imparted by the heterogeneous nature of the support. In this work we describe the covalent functionalization with ferrocene (Fc) of two graphene derivatives: graphene acid (GA), a graphene layer whose basal plane is modified with COOH groups, and graphene oxide (GO). The surface modification is performed exploiting the carbodiimide chemistry, which allows introducing up to 3.6% at. of iron in the GA-based material. Compared to GO, GA owns a superior functionalization degree, which is attributed to its controlled surface chemistry. Both Fc-modified materials are tested as catalysts in the C–H insertion of diazonium salts employing arene substrates. The materials are active, versatile and recyclable catalysts that show a catalytic performance comparable to or even better than molecular Fc, together with a 100% recyclability which does not alter the catalytic performance. The GA-based hybrid catalyst results more active than that based on GO due to the presence of more extended aromatic domains that facilitate the adsorption of the reagents close to the active sites.
2019
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2977488
10.1016/j.carbon.2018.11.010
2-s2.0-85056750719
https://www.sciencedirect.com/science/article/pii/S0008622318310273?via=ihub
eng
CARBON
info:eu-repo/semantics/closedAccess
Elsevier
oai:iris.polito.it:11583/29843372024-03-06T02:22:54Z
2023-12-07T08:20:54Z
urn:hdl:11583/2984337.2
Resource-aware Deployment of Dynamic DNNs over Multi-tiered Interconnected Systems
C. Singhal
Y. Wu
F. Malandrino
M. Levorato
C. F. Chiasserini
Singhal, C.
Wu, Y.
Malandrino, F.
Levorato, M.
Chiasserini, C. F.
The increasing pervasiveness of intelligent mobile applications requires to exploit the full range of resources offered by the mobile-edge-cloud network for the execution of inference tasks. However, due to the heterogeneity of such multi-tiered net- works, it is essential to make the applications’ demand amenable to the available resources while minimizing energy consumption. Modern dynamic deep neural networks (DNN) achieve this goal by designing multi-branched architectures where early exits enable sample-based adaptation of the model depth. In this paper, we tackle the problem of allocating sections of DNNs with early exits to the nodes of the mobile-edge-cloud system. By envisioning a 3-stage graph-modeling approach, we represent the possible options for splitting the DNN and deploying the DNN blocks on the multi-tiered network, embedding both the system constraints and the application requirements in a convenient and efficient way. Our framework – named Feasible Inference Graph (FIN) – can identify the solution that minimizes the overall inference energy consumption while enabling distributed inference over the multi-tiered network with the target quality and latency. Our results, obtained for DNNs with different levels of complexity, show that FIN matches the optimum and yields over 65% energy savings relative to a state-of-the-art technique for cost minimization.
2024
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2984337
eng
IEEE INFOCOM 2024
IEEE INFOCOM 2024
info:eu-repo/semantics/closedAccess
ELETTRONICO
IEEE
oai:iris.polito.it:11583/29849942024-03-14T01:40:23Zcom_11583_2614429com_11583_2614425col_11583_2614406
2024-02-07T08:42:28Z
urn:hdl:11583/2984994
Network Sharing for sustainability and resilience in the era of 5G and beyond
Marco Ajmone Marsan
Michela Meo
Maoquan Ni
Daniela Renga
AJMONE MARSAN, Marco Giuseppe
Meo, Michela
Ni, Maoquan
Renga, Daniela
2023
info:eu-repo/semantics/conferenceObject
https://hdl.handle.net/11583/2984994
https://netmob.org/book_of_abstract/book_of_abstract.pdf
eng
NetMob 2024 Book of Abstracts
NetMob 2024
info:eu-repo/semantics/closedAccess
ELETTRONICO
NetMob
oai:iris.polito.it:11583/29714632024-03-20T21:52:23Zcom_11583_2614426com_11583_2614425col_11583_2614384
2022-11-17T08:52:48Z
urn:hdl:11583/2971463
Is Open Innovation always the best for SMEs? An explorative analysis at the project level
Cristina Marullo
Alberto Di Minin
Chiara De Marco
Andrea Piccaluga
Marullo, Cristina
Di Minin, Alberto
De Marco, Chiara
Piccaluga, Andrea
Open innovation (OI) projects are increasingly adopted by small- and medium-sized
enterprises (SMEs). Yet, undertaking OI is not only a source of opportunities for
SMEs as it can, at the same time, present risks. How SMEs manage the balance
between the potential benefits and the emerging challenges of OI is still an overlooked
topic in the literature. Using evidence gathered through multiple case studies
and drawing upon the relational view of the firm, we explore how and why value creation
opportunities and different managerial challenges emerge for SMEs pursuing OI
projects. We analyze different stages of OI projects in several different contexts of
their implementation. Our analysis sheds light on the different nature and dynamics
of knowledge involved within OI projects as important boundary conditions affecting
successful search paths, learning processes, and the development of appropriability
mechanisms. By offering a contextualized view of OI in SMEs, this study also provides
insights to business managers on the situational opportunities and constraints
of OI, including managerial suggestions on actions to manage tensions within differing
OI projects.
2020
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2971463
10.1111/caim.12375
2-s2.0-85083792445
eng
CREATIVITY AND INNOVATION MANAGEMENT
info:eu-repo/semantics/closedAccess
Wiley
oai:iris.polito.it:11583/29784322024-03-20T20:09:08Zcom_11583_2614426com_11583_2614425col_11583_2614384
2023-05-24T11:05:59Z
urn:hdl:11583/2978432
The Use of a Simplified Carbon Footprint Tool for Organic Waste Managers: Pros and Cons
Mancini, Eliana
Negro, Viviana
Mainero, Davide
Raggi, Andrea
Mancini, Eliana
Negro, Viviana
Mainero, Davide
Raggi, Andrea
Abstract: Given that the pressure of climate change action on companies is increasing, it is recom-
mended to measure the improvement of mitigation activities in terms of GHG emissions. This paper
aims to highlight the still-open aspects that characterise simplified GHG accounting tools, starting
from the outcomes of a case study. This study was performed using a simplified Italian software
for the CO2 eq accounting of composting and anaerobic digestion, two mitigation activities that
contribute an important share of global GHG emissions reduction. The tool is based on the life-cycle
thinking approach. It has been applied to an Italian company that treats the organic fraction of
municipal solid waste. The tool analysis has made it possible to stress several issues that are currently
the object of debate in the literature, for example, the trade-off between the flexibility of the software
and its user friendliness or the multifunctionality issues and their different interpretations. However,
focusing on just one impact category, i.e., climate change, may lead to an incomplete picture of the
overall environmental performance of the process analysed. Therefore, this tool could be improved
by including other impact categories, such as eutrophication and acidification, which may be affected
by the studied activities.
2022
info:eu-repo/semantics/article
https://hdl.handle.net/11583/2978432
10.3390/su14041951
2-s2.0-85124536233
https://www.mdpi.com/2071-1050/14/4/1951
eng
SUSTAINABILITY
info:eu-repo/semantics/openAccess
ELETTRONICO
MDPI
oai:iris.polito.it:11583/29826172024-01-25T23:48:59Zdidl////100