New Materials, Intelligent Systems, and Innovative Companies

@inproceedings{do_2554,

title = {zk-SNARKs from Codes with Rank Metrics},

author = {Xuan-Thanh Do and Dang-Truong Mac and Quoc Huy VU},

url = {https://link.springer.com/chapter/10.1007/978-3-031-47818-5_6},

issn = {978-3-031-47818-5},

year  = {2023},

date = {2023-12-01},

booktitle = {IMA International Conference on Cryptography and Coding},

address = {London, UK},

abstract = {Succinct non-interactive zero-knowledge arguments of knowledge (zk-SNARKs) are a type of non-interactive proof system enabling efficient privacy-preserving proofs of membership for NP languages. A great deal of works has studied candidate constructions that are secure against quantum attackers, which are based on either lattice assumptions, or post-quantum collision-resistant hash functions. In this paper, we propose a code-based zk-SNARK scheme, whose security is based on the rank support learning (RSL) problem, a variant of the random linear code decoding problem in the rank metric. 

Our construction follows the general framework of Gennaro et al. (CCS'18), which is based on square span programs (SSPs). Due to the fundamental differences between the hardness assumptions, our proof of security cannot apply the techniques from the lattice-based constructions, and indeed, it distinguishes itself by the use of techniques from coding theory. We also provide the scheme with a set of concrete parameters.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{chevalier_2600,

title = {Semi-quantum Copy-Protection and More},

author = {Céline Chevalier and Paul Hermouet and Quoc Huy VU},

url = {https://link.springer.com/chapter/10.1007/978-3-031-48624-1_6},

issn = {978-3-031-48624-1},

year  = {2023},

date = {2023-12-01},

booktitle = {Theory of Cryptography Conference},

address = {Taipei, Taiwan},

abstract = {Properties of quantum mechanics have enabled the emergence of quantum cryptographic protocols achieving important goals which are proven to be impossible classically. Unfortunately, this usually comes at the cost of needing quantum power from every party in the protocol, while arguably a more realistic scenario would be a network of classical clients, classically interacting with a quantum server.



In this paper, we focus on copy-protection, which is a quantum primitive that allows a program to be evaluated, but not copied, and has shown interest especially due to its links to other unclonable cryptographic primitives. Our main contribution is to show how to dequantize quantum copy-protection schemes constructed from hidden coset states, by giving a construction for classically-instructed remote state preparation for coset states, which preserves hardness properties of hidden coset states. We then apply this dequantizer to obtain semi-quantum cryptographic protocols for copy-protection and tokenized signatures with strong unforgeability. In the process, we present the first secure copy-protection scheme for point functions in the plain model and a new direct product hardness property of coset states which immediately implies a strongly unforgeable tokenized signature scheme.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{mhiri_2815,

title = {Modeling and Analysis of a Piezoelectric Bimorph Cantilevered Beam for Vibration Energy Harvesting},

author = {Mohamed Taha Mhiri and Walid Larbi and Mnaouar Chouchane and Mohamed Guerich},

url = {https://cmsm.tn/CMSM2023/},

issn = {https://cmsm.tn/CMSM2023/},

year  = {2023},

date = {2023-12-01},

booktitle = {https://cmsm.tn/CMSM2023/},

address = {Hammamet, Tunisia},

abstract = {This paper presents an extensive investigation into the modeling and

analysis of a piezoelectric bimorph cantilevered beam designed for vibration energy

harvesting. By employing finite element analysis (FEA), the study explores

various beam models, encompassing 1D Euler-Bernoulli, 2D, and 3D representations,

to determine the eigenfrequencies and electromechanical responses of the

energy harvester. The research includes a comparative analysis, which contrasts

the results obtained from the proposed FE models with the experimental findings

of Erturk and Inman, as well as analytical solutions. The results reveal that the 3D

model exhibits minimal error. Additionally, using the 3D model, this work investigates

the influence of tip mass shape on the electromechanical response of the

system, suggesting that a parallelepiped shape maximizes voltage output while

maintaining a lower resonant frequency.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{chaabene_2844,

title = {Étude expérimentale de l'influence des paramètres du processus sur la dureté de l'acier maraging fabriqué par la fusion par faisceau d'électrons},

author = {Ameni Chaabene and Slim Ben Eleuchi and Sami Chatti and Mohamed Guerich},

url = {https://cmsm.tn/CMSM2023/},

issn = {https://cmsm.tn/CMSM2023/},

year  = {2023},

date = {2023-12-01},

booktitle = {10th International Congress on Design and Modelling of Mechanical Systems},

address = {Hammamet, Tunisia},

abstract = {- Les aciers maraging sont largement utilisés dans les industries exigeant une grande précision en raison de leurs excellentes propriétés mécaniques, telles qu'une résistance élevée, une grande ténacité, une facilité de mise en forme, une soudabilité, une précision dimensionnelle et une aptitude à la transformation. Ces aciers se caractérisent par une structure martensitique typique obtenue grâce à des traitements thermiques de vieillissement. Avec la tendance industrielle vers l'utilisation d'aciers à haute résistance, il existe une demande croissante d'optimisation de la masse tout en conservant de bonnes propriétés mécaniques pour une application donnée. La fusion par faisceau d'électrons (EBM) est une technique de fabrication additive offrant plusieurs avantages par rapport aux méthodes traditionnelles, notamment la capacité à produire des pièces aux géométries complexes en petites séries et à créer des prototypes à partir de modèles CAO. Toutefois, en raison des phénomènes physiques complexes impliqués dans le processus EBM, tels que les changements de phase et de matériau, l'optimisation des paramètres de processus devient un défi critique. Dans cette étude, nous examinons trois paramètres du processus EBM (le décalage de ligne (line offset), la vitesse de balayage et le nombre de contours) sur la dureté de l'acier maraging dans le processus EBM. Les résultats obtenus contribuent à l'amélioration du processus EBM et à la production des composants de haute qualité. Ces composants trouvent des applications dans diverses industries, notamment la médecine, l'automobile et l'aérospatiale, soulignant l'importance de cette recherche pour un large éventail d'applications de pointe.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{mali_2441,

title = {A Multidimensional Cost Model for Distributed Denormalized NoSQL Schemas},

author = {Jihane Mali and Faten Atigui and Ahmed Azough and Nicolas Travers and Ahvar Shohreh},

url = {https://bda2023.sciencesconf.org/resource/page/id/11},

year  = {2023},

date = {2023-10-01},

booktitle = {39ème Conférence sur la Gestion de Données - Principes, Technologies et Applications},

address = {montpellier, France},

abstract = {The complexity of database systems has increased significantly along with the continuous growth of data, forcing Information Systems (IS) administrators to constantly adapt their data models and carefully choose the best option(s) for storing and managing data. In this context, we propose an automatic global approach for leading data model's transformation process. This approach starts with the generation of all possible solutions. It then relies on a cost model that helps to compare these generated data models to finally choose the best one for the given use case. This cost model integrates both data model and queries cost. It also takes into consideration the environmental impact of a data model as well as its financial and its time cost. This work presents for the first time a multidimensional cost model encompassing time, environmental and financial constraints, which compares data models leading to the choice of the best one for a given use case and context. In addition, a simulation tool for data model's transformation and cost computation has been developed based on our approach.},

keywords = {},

pubstate = {online},

tppubtype = {inproceedings}

}

@inproceedings{venkateswaran_2304,

title = {Design and analysis of a series-parallel hybrid 3-SPS-U mechanism},

author = {Swaminath Venkateswaran and Damien Charles Chablat and Denis Creusot},

url = {https://event.asme.org/IDETC-CIE},

year  = {2023},

date = {2023-08-01},

booktitle = {Proceedings of the ASME 2023 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference},

address = {Boston, MA, United States},

abstract = {This article presents the design and analysis of a series-parallel hybrid tensegrity mechanism. The mechanism has two stages which consist of a fixed base, an intermediate mobile platform, and a mobile end-effector. Each stage is connected by three tension springs and a universal joint in the center. By correlating to a 3-SPS-U architecture, the geometrical equations for the mechanism are generated in the Euler space and the Tilt & Torsion space. To simplify the computations, the Tilt & Torsion space is employed for the analysis of the mechanism. A stability analysis is carried out initially to identify the design parameters of the mechanism in the static mode through an optimization approach. By employing algebraic methods, the singularity analysis is then carried out on the hybrid mechanism. The results of this analysis helped in identifying the feasible workspace and the maximum tilt limits of the architecture.  A mapping equation that demonstrates the relation between the Tilt & Torsion angles and the Euler angles is then presented using the results of singularity analysis. A numerical simulation is then demonstrated to validate the results of the analysis. The mechanism under study is then proposed to be integrated into a piping inspection robot for passing through elbows and T-sections.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{nguyen_2546,

title = {Contribution to Griffith theory of fracture for predicting fracture toughness},

author = {Thuy Nguyen and Daniel Bonamy},

url = {https://www.sci-en-tech.com/ICCM/index.php/ICCM2023/index/about},

year  = {2023},

date = {2023-08-01},

booktitle = {The 14th International Conference of Computational},

address = {Ho Chi Minh City, Vietnam},

abstract = {Fracture toughness and fracture energy are two key, interrelated, parameters characterising the

material resistance-to-failure. Predicting these values from the solid structure at the atomistic

scale remains elusive, even in the simplest situations of ideal brittle fracture. By using numerical

simulations on scalar lattice models of fracture, we demonstrate that fracture toughness cannot

be deduced from Griffith's specific surface energy, as is generally believed. Rather, it finds its

origin in the matching between the continuum displacement field at the engineering scale and the

discrete lattice of solids at the atomic scale. The generic asymptotic form taken by this field near

crack tip provides a solution for this matching, and subsequently a way to predict toughness

from the atomistic parameters. This method is extended to true vectorial elasticity and is used

to revisit the fracture toughness/fracture energy values observed in bidimensional crystalline

materials like graphene},

keywords = {},

pubstate = {accepted},

tppubtype = {inproceedings}

}

@inproceedings{navazhylava_2430,

title = {Designing the happiness-machine: digital entrepreneurs and technologies for grand challenges},

author = {Kseniya Navazhylava and Jean-Charles Pillet and Gazi Islam and Marcos Barros},

url = {https://journals.aom.org/doi/abs/10.5465/AMPROC.2023.15884abstract},

issn = {https://doi.org/10.5465/AMPROC.2023.15884abstract},

year  = {2023},

date = {2023-07-01},

booktitle = {Academy of Management Annual Meeting Proceedings},

volume = {2023},

number = {1},

address = {555 Pleasantville Road, Suite N200   Briarcliff Manor, NY 10510-8020, USA},

abstract = {Imagination is believed to enable entrepreneurship to emerge that produces bold answers to grand challenges. Many entrepreneurs are searching for such answers in digital technologies, producing new technologies that promise a response to grand challenges. Entrepreneurial attempts to imagine socially relevant technologies, however, reveal a dark side in the creation of technologies that project entrepreneurial expectations on users and shape expectations for user experience. Through a qualitative study of imagining a new technology that responds to a grand challenge of workplace wellbeing, we find that imagined technologies shape specific solutions relevant to company HR practices for responses to workplace wellbeing. This made possible by the elusiveness of wellbeing, as highly subjective, future oriented and not reliant on previous user experiences. Wellbeing's elusiveness allows entrepreneur-designers to align user beliefs to entrepreneur-designers' needs. We find that instead of imagining radically new affordances, entrepreneur designers rely on a mix of adapted real affordances of existing technologies and an affordance of educability that helps define elusive phenomena for technology users.},

keywords = {},

pubstate = {online},

tppubtype = {inproceedings}

}

@inproceedings{celia_2314,

title = {Tala Box: an Interactive Embedded System to Accompany Patients with Cognitive Disorders},

author = {Sa?chez-Girón Coca Celia and Luc Perera and Mathis Boiteau and Antoine Costanza and Jérôme Grison and Sarnette Emmanuel and Michèle Kanhonou and Frédéric Fauberteau and Nga Nguyen and Jouvelot Pierre},

url = {https://hal-mines-paristech.archives-ouvertes.fr/hal-04071711},

issn = {979-8-4007-0102-3},

year  = {2023},

date = {2023-06-01},

booktitle = {IEEE/ACM international conference on Connected Health: Applications, Systems and Engineering Technologies},

address = {Orlando (Florida), United States},

abstract = {Given the lack of drugs to treat cognitive deficit disorders, nonpharmacological approaches have become popular to address these pathologies. In particular, music therapy has been successfully used with Alzheimer's patients to improve their mood and functional abilities. The Tala Sound project studies whether non-Western music from the southern regions of India can be used to improve the mood and functional abilities of Western people suffering from Alzheimer's disease. This traditional style of music, called Carnatic music, is based on specific rhythm sequences, called "talas", that have an irregular rhythm compared to the ones found in Western music. In this paper, we describe the Tala Box, a new multimedia sensory device with which patients can interact while a Carnatic song is being played. The motivation for the development of this embedded system is the intent, in addition to the unusual nature of the music played, to use motor and cognitive stimulation to better engage Alzheimer's patients and, hopefully, improve their mood and mental state. Preliminary testing with healthy seniors has shown great interest in the Tala Box.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{raynaud_2317,

title = {Attack Scenarios Generation Algorithm Based on Discrete Event System Formalism},

author = {Alexis Raynaud and Théo Serru and Nga Nguyen},

url = {http://www.ada-europe.org/conference2023/media/AEiC_2023_Final_Program.pdf},

year  = {2023},

date = {2023-06-01},

booktitle = {Challenges and New Approaches for Dependable and Cyber-Physical System Engineering (DeCPS 2023)},

address = {Lisbon, Portugal},

abstract = {To help automatize the security risk assessment process of Cyber-Physical Systems (CPS), we propose a tool based on Discrete Event Systems (DES) to model the architecture and the behavior of CPS in the presence of cyberattacks. 

Then, we present a lightweight algorithm to generate all the attack scenarios threatening a system, i.e. the sequences of attacks leading to a critical state (e.g. loss of control, collision, etc.).

This kind of generation being prone to combinatorial explosion, our algorithm embeds state-space reduction capabilities focused on the specificities of cyber-physical attacks.

Finally, we illustrate the performance of our algorithm on a case study: the navigation system of an autonomous vessel.

This work can be seen as an alternative to heavy tools expressed in specific languages.

It is open source and aims to give a good compromise between expressiveness, modeling time and computational power.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{wang_2364,

title = {Contextual classification of chatter based on unsupervised machine learning},

author = {Zhiqiang Wang and Mathieu Ritou and Benoît Furet},

url = {https://www.sciencedirect.com/science/article/pii/S2212827123001981},

issn = {2212-8271},

year  = {2023},

date = {2023-06-01},

booktitle = {Procedia CIRP 19th CIRP Conference on Modeling of Machining Operations},

volume = {117},

pages = {390-395},

address = {Karlsruhe, Germany},

abstract = {In the context of Industry 4.0, large volumes of manufacturing data are available on instrumented machine-tool. The critical point is the

exploitation of this digital content. Data contextualization is important for efficient and robust data mining, particularly for industrial production. For this purpose, a classification method of the operational manufacturing context is proposed. It relies on knowledge integration (by business rules) and unsupervised machine learning, with a Gaussian Mixture Model, applied to in-process monitoring signals. The method was evaluated on real industrial machining databases collected during one year. Manual data mining shows that this method is accurate on industrial production (98.9%). Moreover, the application of contextual classifications for the chatter detection on the same production data shows the relevancy of the proposed data mining approach.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{xiao_2117,

title = {Harmonic Maps: Interactive Visualization of Triad Spaces Based on Spectral Structures},

author = {Xiao Xiao},

url = {https://tenorboston23.sites.northeastern.edu/v},

issn = {To be obtained},

year  = {2023},

date = {2023-05-01},

booktitle = {Proceedings of Tenor 2023},

address = {Boston, USA},

abstract = {We present Harmonic Maps, a visualization of three-note chord spaces and an interactive application that allows users to explore in real-time the connection between the visualization and its mapped sounds. While typical harmonic analysis is based only on notes or on an audio signal, our analysis takes a hybrid approach by quantifying different types of interactions between the spectra of notes. These quantifications, which we call Harmonic Descriptors, are derived from acoustic or perceptual models. Three such descriptors are defined and mapped: concordance, third order concordance and roughness.



Harmonic analysis based on spectral structures opens new possibilities beyond traditional note-only or signal-only approaches. They can be applied to a continuum of frequencies, independent of the tuning system, as well as historical and stylistic constraints. Harmonic Maps based on spectral structures can be especially relevant to study the relationship between timbre and harmony. Our interactive exploration of harmonic spaces can have applications for analytical, compositional and educational purposes.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{parilusyan_2251,

title = {Local Layer Splitting: An Additive Manufacturing Method to Define the Mechanical Properties of Soft Pneumatic Actuators During Fabrication},

author = {Brice Parilusyan and Marc Teyssier and Zacharie Guillaume and Thibault Charlet and Clément Duhart and Marcos Serrano},

url = {icra2023.org},

year  = {2023},

date = {2023-05-01},

booktitle = {IEEE International Conference on Robotics and Automation},

address = {ExCeL London Royal Victoria Dock 1 Western Gateway, London E16 1XL},

abstract = {Additive manufacturing of silicone is increasingly being explored to complement the traditional molding fabrication technique for Soft Pneumatic Actuators (SPAs). However, the mechanical behavior of SPAs is defined by their 3D form, which leads to prioritizing the SPAs mechanical properties over their aspect. In this paper, we propose a novel SPA fabrication method where the mechanical properties of a silicone part are defined during the fabrication phase rather than the 3D modeling phase, leading to the object's mechanical properties being independent of the object's aspect. This novel SPA fabrication method, named Local Layer Splitting (LLS), consists of local modifications of the printing layer height to integrate stiffness variation, thus generating controlled mechanical deformation when pressured. We discovered that silicone printing layer height impacts the final stiffness of the material, and it could be used to program bending deformation to actuators during printing. We first characterize the effect of the layer height parameters on 3D-printed silicone stiffness with tensile tests. Then, we present a custom slicer we developed to generate G-codes with local layer height variations depending on the x and y positions. We then characterize the bending and force achievable by SPAs made with the LLS process and find that they match those of state-of-the-art SPAs. Finally, we present and discuss how the LLS method impacts the SPAs design by shifting the bending behavior integration from the SPAs 3D conception to their fabrication phase.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{taieb_2436,

title = {Stroking Luxury Product Images on Online Retail Increases Purchase Intentions: The Effects of Image Interactivity},

author = {Basma Taieb and Jean-Éric Pelet},

url = {https://static1.squarespace.com/static/648893d9cbee3c0b58b73264/t/64b9b3f5a375952b8de4187a/1689891829885/ams_ac_2023_abstracts.pdf},

year  = {2023},

date = {2023-05-01},

booktitle = {AMS Conference Welcome to the new normal: Life after the chaos},

address = {New Orleans, Louisiana},

abstract = {The value of the online luxury market worldwide between 2004 and 2021 has not stopped to increase, rising 62 billion euros in 2021 (Bain & Company, 2021). Nine percent of worldwide luxury good sales were made online in 2017. This figure was expected to reach 25 percent by 2025 (Statista, 2023). The current limitations in online shopping prevents consumers from touching, stroking, and even trying on the product as you could do in a traditional retail store (Hu & Wise, 2020). Introducing digitalization in luxury sector to improve customer interaction with the product is a factor differenti-ated from customer service (Son, Bae & Kim, 2023). Moreover, the use of touch devices (e.g., tablets using with fingers) have become prevalent in the daily lives of consumers, including when shopping online for fashion items (Lee & Choi, 2022). Customers prefer easy-to-use websites in order to opti-mize their actions; the more intuitive an experience is, the higher the quality of that experience (Pelet and Taieb, 2018; Pelet and Taieb, 2022). Such an experience may be created through image interac-tivity, which may enhance shopping experiences, provided that the consumer keeps control of their moves on the screen and feels ?dominating' it. Unlike non-touch, click-based devices (e.g., desktop computers with a mouse), touch devices allow online shoppers to directly touch product images on the screen with their fingers (Lee & Choi, 2022). The objective of designers of such e-commerce websites is to turn the in-store experience into the online environment, through the use of object interactivity, virtual try-ons, mix-and-match functionalities, etc. (Perry, Blazquez and Padilla, 2013). Furthermore, image interactivity includes techniques which replace a sense that is normally not acti-vated on the Internet: the sense of touch. Prior research has examined the effects of image interactivity technology on consumer responses. However, such effects have not been fully investigated in the context of online luxury shopping. In this study, we investigate the effects of product image interac-tivity (zoom, rotation and 3D) on perceived control and willingness to purchase online. We also are interested in exploring whether the type of interfaces (touch screen vs mouse) moderates these rela-tionships. A confirmatory study was conducted. The data were collected through an online survey (n=395). The results show that image interactivity positively influences perceived control and will-ingness to purchase luxury product online. The effect of image interactivity on willingness to pur-chase becomes stronger when this relation is mediated by perceived control. The results indicate no significant differences when accessing interactive images through a touch screen compared to a mouse. Managerial implications for luxury brands are discussed.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{xiao_2253,

title = {Performative Vocal Synthesis for Foreign Language Intonation Practicev},

author = {Xiao Xiao},

url = {https://chi2023.acm.org/},

issn = {78-1-4503-9421-5/23/04},

year  = {2023},

date = {2023-04-01},

booktitle = {Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems},

address = {Hamburg, Germany},

abstract = {Typical foreign language (L2) pronunciation training focuses mainly on individual sounds. Intonation, the patterns of pitch change across words or phrases is often neglected, despite its key role in word-level intelligibility and in the expression of attitudes and affect. This paper examines hand-controlled real-time vocal synthesis, known as Performative Vocal Synthesis (PVS), as an interaction technique for practicing L2 intonation in computer aided pronunciation training (CAPT). 



We evaluate a tablet-based interface where users gesturally control the pitch of a pre-recorded utterance by drawing curves on the touchscreen. 24 subjects (12 French learners, 12 British controls) imitated English phrases with their voice and the interface. Results of an acoustic analysis and expert perceptive evaluation showed that learners' gestural imitations yielded more accurate results than vocal imitations of the fall-rise intonation pattern typically difficult for francophones, suggesting that PVS can help learners produce intonation patterns beyond the capabilities of their natural voice.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{taieb_2437,

title = {Delineating the role of product image interactivity and consumer mood on the willingness to buy online luxury products},

author = {Basma Taieb and Jean-Éric Pelet},

url = {https://www.monaco-symposium-on-luxury.com},

year  = {2023},

date = {2023-04-01},

booktitle = {NEW FORMS OF LUXURY...FOR A BETTER TOMORROW?},

address = {Monaco},

abstract = {This study extends the understanding of the effectiveness of image interactivity technology (zoom, rotation and 3D) in the luxury sector. We examine the perceived image interactivity of luxury products and consumer according to the devices used (touch screen vs mouse). We also examine the direct and indirect effects of image interactivity of luxury products on willingness to purchase online. The data were collected through an online survey (n=395). The results show that perceived image interactivity of luxury products as well as consumer mood are higher when using a touch screen compared to a mouse. The willingness to purchase online is positively influenced by image interactivity and consumer mood, regardless of device type. The mediating effect of consumer mood was not significant. Managerial implications for luxury brands are discussed.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{kallel_2221,

title = {Effect of cryogenic conditions on mechanical properties of polypropylene composite (GF50-PP) produced by thermocompression process},

author = {Achraf Kallel and Joseph Fitoussi and Mohammadali Shirinbayani and Abbas Tcharkhtchi},

url = {https://www.pps-37.org/},

year  = {2023},

date = {2023-03-01},

booktitle = {American Institute of Physics},

address = {Fukuoka, Japon},

abstract = {The thermocompression molding process allows composites to be made with longer fibers compared to injection molding and extrusion. However, during thermo-compression molding fiber-reinforced composites are exposed to complex effects, which can lead to specific fiber orientation/distribution and therefore affect the mechanical properties. The aim of this work is to study the effect of fiber orientation on the mechanical properties of the long-glass-fiber-reinforced polypropylene (GF50-PP) composite produced by the thermocompression process. Moreover, due to the application of this composite in cold liquid gas storage, it is interesting to study this effect under cryogenic conditions. In this study, composite plates of GF50-PP were cut to analyze the effect of fiber orientations: 0°, 45°, and 90° with respect to the Mold Flow Direction (MFD). After microstructural observations by SEM microscopy and physico-chemical analysis, the mechanical behavior of GF50-PP samples was examined at monotonic tensile loading and tension-tension fatigue at two loading temperatures of 20°C and -70 °C. The results of the tensile tests revealed that the values of stress at break were almost similar at 20°C and -70°C for different fiber orientations of 0°, 45° and 90° and that the temperature effect for the two test conditions is almost insignificant. The tensile-tension fatigue tests at 20°C show the significant effect of the orientation of the fibers when the amplitude of deformation is important. On the other hand, when the amplitude is small, this effect is negligible. In this case, all samples exhibit almost the same behavior. However, during fatigue tests at -70 ° C (cryogenic temperature), the material shows almost uniform linear behavior, but still sensitive to the orientation of the fibers.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{ben_eleuchi_2373,

title = {Sensibilité des coefficients de frottement et des lois d'extrapolations sur la prédiction du retour élastique pour l'acier HSLA420},

author = {Slim Ben Eleuchi and Seddik Shiri and Mohamed Guerich},

url = {https://www.cotume.tn/proceeding/},

year  = {2023},

date = {2023-03-01},

booktitle = {Proceeding of the Tunisian Congress of Mechanics},

address = {Monastir, Tunisia},

abstract = {L'analyse par éléments finis est largement utilisée pour la prédiction du retour élastique, mais la précision dépend fortement des paramètres numériques et physiques. Parmi les paramètres qui affectent la prédiction, on peut citer : le coefficient de frottement, les lois de comportement, la fonction de charge... Dans ce papier, la sensibilité des coefficients de frottement et l'influence d'extrapolation des lois sur la prédiction du retour élastique sont étudiées et analysées. Comme application, nous utilisons un exemple industriel du procédé d'emboutissage : le bavolet d'automobile avec le matériau HSLA420. Toutes les simulations numériques sont effectuées avec le code commercial Pam-stamp 2G.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{taleb_2073,

title = {A holonic multi-agent architecture for smart grids},

author = {Ihab Taleb and Guillaume Guérard and Frédéric Fauberteau and Nga Nguyen},

url = {https://icaart.scitevents.org/},

issn = {978-989-758-547-0},

year  = {2023},

date = {2023-02-01},

booktitle = {International Conference on Agents and Artificial Intelligence},

address = {Lisbon, Portugal},

abstract = {The global warming and the increase of fossil fuel prices make the minimization of energy generation an important objective. Thus, smart grids are becoming more and more relevant in a context where we want to regulate the demand according to the available energy. This regulation can be operated thanks to Demand Side Management (DSM) tools. While different models and architectures have been developed for smart grids, only few papers used holonic architectures. For this, we propose in this paper a holonic architecture for smart grids. This type of architectures is relevant to smart grids as it allow the various actors in the grids to work even in the cases of technical problems. Holons in the proposed model are composed of five interconnecting agents that ensure flexibility on the various aspects. This model has been tested and has proven to work on 3 different scenarios. The first scenario simulates a grid in its healthy state. The second one simulates a grid where a region can be disconnected from a blackout for example. The third one simulates a grid with production mismanagement. Results show how the grid distributes the available energy depending on the available production, priorities (if any) and the assurance of the distribution across the various requesting holons.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{nohra_1814,

title = {Impact of automation during innovative remanufacturing processes in circular economy},

author = {Perla Nohra and Helmi Ben Rejeb and Swaminath Venkateswaran},

url = {https://ieeexplore.ieee.org/document/10033231},

issn = {978-1-6654-8817-4},

year  = {2023},

date = {2023-02-01},

booktitle = {2022 IEEE 28th International Conference on Engineering, Technology and Innovation (ICE/ITMC) & 31st International Association For Management of Technology (IAMOT) Joint Conference},

publisher = {IEEE},

address = {Nancy, France},

abstract = {With the increasing demand of raw materials nowadays, and the decrease in supplies, the industrial sector is suffering, while the environment and the society are also indirectly affected. The goal to reach a sustainable development imposes several studies on the economic, environmental and community level. The aim of this paper is to provide an overview of the existing literature on automating remanufacturing, and its impacts on the three pillars of sustainability. The outcomes of this study will reveal the impacts of remanufacturing on sustainability and will conceptualize the impact of using automation and cobots, which are among the key concepts in industry 4.0. The investigation that covers each part of the remanufacturing process will help in formalizing an approach about the automation of such processes and improve the remanufacturing sector towards a more sustainable industry.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}