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检索条件"丛书名=Lecture Notes in Mechanical Engineering"

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Development of a Multibody Parametric Model as a Diagnostic and Monitoring Tool for Parkinson Disease Analysis 4th

Development of a Multibody Parametric Model as a Diagnostic ...

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4th International Conference of the Italian Association of Design Methods and Tools for Industrial engineering

作者： Baiamonte, Giuliana Cappetti, Nicola Fontana, Carlotta Laudani, Giuseppe Cali, Michele Univ Catania Elect Elect & Comp Engn Dept I-95125 Catania Italy Univ Salerno Fisciano Campania Italy

ISBN: (纸本)9783031765933;9783031765940

Parkinson's disease (PD) is the second most common progressive degenerative disease after Alzheimer's disease, and occurs mainly in the population over 65 years of age. This disease, which is usually detected at an advanced stage, depends on a dysfunction of neuronal circuits comprising the motor cortical areas and the basal ganglia, resulting in movement abnormalities. This has a substantial impact on quality of life and requires various strategic treatments, including drug therapy, surgery and rehabilitation. This research work proposes a parametric multibody digital-twin model, developed in the Simulink-Simscape environment, capable of reproducing the posture and movements of PD patients. The model allows an accurate and non-invasive real-time or delayed assessment of patients' movements, with the aim of identifying the main signs of disease progression at an early stage in order to prevent possible related risk factors and delay disease progression. The proposed method therefore makes it possible to perform, even at a distance, an assessment of the progress and level of severity of the disease, as well as early screening, through the digital monitoring of the maneuvers and clinical tests of the MDS-Unified Parkinson's Disease Rating Scale.

关键词： Parkinson's disease Neurodegenerative disease Impaired motor control Multibody digital-twin model Disease rating scale

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Preliminary Design of a General Control Architecture for the DTT Remote Handling Facility 4th

Preliminary Design of a General Control Architecture for the...

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4th International Conference of the Italian Association of Design Methods and Tools for Industrial engineering

作者： Fimiani, Andrea Sofia, Alessandro Fontanelli, Giuseppe Andrea Grazioso, Stanislao Zoppoli, Andrea Reale, Andrea Di Gironimo, Giuseppe Univ Naples Federico II Dept Ind Engn Naples Italy HEROBOTS SRL Corso Nicolangelo Protopisani 70 I-80146 Naples Italy CREATE Consortium Via Claudio 21 I-80125 Naples Italy DTT SCarl Via Fermi 45 I-00044 Frascati Italy ENEA CRE Frascati Via Enrico Fermi 45 I-00044 Frascati Italy Univ Padua Ctr Ateneo Ctr Ric Fus Via Febbraio 2 8 I-35122 Padua Italy

ISBN: (纸本)9783031765964;9783031765971

In this work we describe a preliminary general architecture for control rooms intended for remote handling operations of nuclear fusion reactors. The proposed preliminary control architecture will be implemented and used in the DTT Remote Handling Facility, for the training of operators and the test of remote handling operations. The control architecture is based on a Multi-Server/Multi-Client communication system, with two central servers running the core software modules and exchanging data over five different networks. The architecture foresees the use of a high-fidelity digital twin, virtual reality technologies and force-feedback devices to aid operator during RH tasks.

关键词： Remote Handling Control Architecture Robotics Digital twin

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Analysis of the Crushing Behavior of Flat Composite Plates Produced by Sheet Molding Compound 5th

Analysis of the Crushing Behavior of Flat Composite Plates P...

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5th International Symposium on Dynamic Response and Failure of Composite Materials

作者： Falaschetti, Maria Pia Hernandez, Johan Birnie Semprucci, Francesco Raimondi, Luca Serradimigni, Davide Troiani, Enrico Donati, Lorenzo Univ Bologna Dept Ind Engn Viale Risorgimento 2 I-40136 Bologna Italy Univ Bologna Interdept Ctr Ind Res Adv Applicat Mech Engn & Ma CIRI MAM Viale Risorgimento 2 I-40136 Bologna Italy Univ Bologna Interdept Ctr Ind Res Aerosp CIRI Aero Via Baldassarre Carnaccini 12 I-47121 Forli Italy Mitsubishi Chem Europe GmbH CPC Srl Via Tirassegno 55 I-41122 Modena Italy

ISBN: (纸本)9783031776991;9783031776977;9783031776960

SMC composites, comprising chopped fiber bundles within a matrix material, offer the potential to create lightweight structures with high strength and stiffness, serving as viable substitutes for heavier metal components. The complex task of designing SMC composites with optimized performance characteristics is compounded by their inherently localized anisotropic behavior and the presence of various interacting forms of damage. Consequently, simulating the performance of SMC in crash-worthy applications necessitates a comprehensive characterization of the material's mechanical properties through tailored experimental tests. In this study, an experimental study has been conducted on a commercial SMC material, with the primary objective of comprehensively comprehending its behavior and deriving specific parameters essential for numerical simulations. Employing ESI-VPS, the crashworthiness of flat components was simulated and successfully achieved a favorable correlation between the obtained results and the experimental data.

关键词： SMC Crashworthiness ESI-VPS Finite Element Analysis

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Does Bony Morphology Influence Anterior Cruciate Ligament Reconstruction Surgical Outcomes? 4th

Does Bony Morphology Influence Anterior Cruciate Ligament Re...

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4th International Conference of the Italian Association of Design Methods and Tools for Industrial engineering

作者： Ghidotti, Anna Zamarian, Andrea Regazzoni, Daniele Cohen, Miri Weiss Condello, Vincenzo Univ Bergamo Dept Management Informat & Prod Engn Via Pasubio 7-B Bergamo Italy Braude Coll Engn Dept Software Engn Snunit St IL-185200 Karmiel Israel Humanitas Castelli Clin Via Mazzini 11 I-24128 Bergamo Italy

ISBN: (纸本)9783031765933;9783031765940

Surgery for Anterior Cruciate Ligament Reconstruction (ACL-R) is common and generally successful. This study investigates whether specific bony morphologies can predict surgical outcomes and patient life quality post-ACL-R. The study involves eighteen patients who underwent ACL-R, with magnetic resonance images used to reconstruct their distal femur and proximal tibia. 3D models are utilized to measure morphological parameters identified in the literature. Knee health is assessed using the KOOS questionnaire, dividing patients into two groups based on scores (>= 60 and <60). Statistical analysis, including correlation matrix, t-tests (or Mann-Whitney tests), and logistic regression, is performed to evaluate the impact of bone morphology on surgical outcomes. The results indicate no significant association between bony morphology and surgical outcomes. Further research with a larger patient cohort and consideration of additional factors, such as surgical approach and graft size, is recommended to validate these findings.

关键词： Anterior Cruciate Ligament 3D Modeling ACL-R Bony Morphology KOOS questionnaire

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Evolution of Unstable Skin-Stringer Debonding Propagation in Composite Aircraft Structures: Implications on Damage Tolerant Design 5th

Evolution of Unstable Skin-Stringer Debonding Propagation in...

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5th International Symposium on Dynamic Response and Failure of Composite Materials

作者： Riccio, Aniello Zarrelli, Mauro Toscano, Cinzia Vinti, Valeria Trinchillo, Luigi Perugini, Pierluigi Castaldo, Rossana Russo, Angela Univ Campania Luigi Vanvitelli Dept Engn Via Rome 29 Aversa CE Italy CNR Res Natl Council Italy Inst Polymers Composites & Biomat I-80055 Naples Italy CIRA Italian Aerosp Res Ctr Via Maiorise S-N I-81043 Capua Italy Avio SPA Via Leonida Bissolati 76 I-00187 Rome RM Italy

ISBN: (纸本)9783031776991;9783031776977;9783031776960

Interlaminar damages are a key challenge that limits the widespread use of composite materials in aircraft primary structural parts. Although years have already passed since the introduction of these materials, unstable propagation of delamination damage is still the base for evaluating the durability and reliability of structures made of composite laminates. In this paper, the unsteady and sudden propagation of skin-stringer debonding in a typical aircraft composite panel is investigated. Experimental tests and advanced finite element simulations have been performed to assess the evolution of debonding under compressive loading conditions. Fibre-reinforced composite panels, reinforced with a single T-shape stringer and characterized by artificial debonding at the interface between skin and stringer, have been experimentally tested and numerically analysed. The test output has revealed unstable growth of the debonding, with implications for the structural stability of the panels. The experimental results have been then compared with numerical simulations performed by using the Virtual Crack Closure Technique based SMart-time XB numerical procedure and excellent correlation have been found in terms of strain measurements against compressive load.

关键词： composite panel unstable delamination lock-in thermography compressive test VCCT FEM

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Using Plasma Coatings to Increase Equipment Reliability at Agribusiness Enterprises 6th

Using Plasma Coatings to Increase Equipment Reliability at A...

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6th Grabchenko's International Conference on Advanced Manufacturing Processes

作者： Mushtruk, Mikhailo Vasyliv, Volodymyr Stadnyk, Igor Derkach, Andriy Boyko, Yuriy Natl Univ Life & Environm Sci Ukraine 15 Heroes Def St UA-03041 Kiev Ukraine Ternopil Ivan Puluj Natl Tech Univ 6 Hohol St UA-46001 Ternopol Ukraine Natl Univ Food Technol 68 Volodymyrska St UA-01601 Kyiv Ukraine

ISBN: (纸本)9783031827488;9783031827464;9783031827457

The wear and corrosion patterns of parts in technological environments of food production result from the influence of random factors. These factors include environmental conditions, load, speed, other external influences, and material characteristics such as hardness and yield strength. As these parameters are random variables, predicting the reliability of machines and equipment should be based on assessing the probability of failure-free operation and service life. The use of plasma coatings in friction units of food equipment operating without lubrication and in acidic environments was examined. The study investigated the impact of aggressive corrosive-active environments on the wear resistance of coatings, which could potentially be used to protect equipment parts in the meat and fish processing industry. The research demonstrated the possibility of controlling the process of corrosion-mechanical wear of equipment parts by polarizing the friction zone. Test results confirmed that the process of corrosion-mechanical wear of eutectic coatings can be managed by adjusting the potential of the friction zone with an external current source. Additionally, the electrochemical characteristics of the coatings in aqueous environments were identified, explaining the process of corrosion-mechanical wear. The level of protection offered by the investigated coatings under simultaneous mechanical loads and working environments was evaluated.

关键词： Wear Protective Characteristics Plasma Coating Technological Environment Wear Resistance Equipment

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Efficient MLOps: Meta-learning Meets Frugal AI 2nd

Efficient MLOps: Meta-learning Meets Frugal AI

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2nd European Symposium on Artificial Intelligence in Manufacturing-ESAIM

作者： Peixoto, Eduardo Torres, Diogo Carneiro, Davide Silva, Bruno Novais, Paulo INESC TEC R Dr Roberto Frias P-4200 Porto Portugal Inst Politecn Porto Escola Super Tecnol & Gestao Felgueiras Portugal Muvu Technol Lisbon Portugal Univ Minho LASI Algoritmi Res Ctr Braga Portugal

ISBN: (纸本)9783031864919;9783031864896;9783031864889

The advent of large Machine Learning models and the steep increase in the demand for AI solutions occurs at the same point in time in which policies are being enacted to implement more sustainable processes in virtually every sector. This means there is a need for more, better and larger models, which require significant computational resources, while at the same time a call for a decrease in the energy spent in the processes associated to MLOps. In this paper we propose a reduced set of meta-features that can be used to characterize sets of data and their relationship with model performance. We start from a large set of 66 features, and reduce it to only 10 while maintaining the strength of this relationship. This ensures a process of meta-feature extraction and prediction of model performance that is in line with the desiderata of Frugal AI, allowing to develop more efficient ML processes.

关键词： Frugal AI MLOps Meta-Learning Manufacturing

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Analysis of the Surface Layer of Aluminium Alloy Castings at Their Machining by the Surface Homogeneity Criterion 6th

Analysis of the Surface Layer of Aluminium Alloy Castings at...

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6th Grabchenko's International Conference on Advanced Manufacturing Processes

作者： Kusyi, Yaroslav Kostiuk, Olha Kuk, Andrii Taras, Iryna Lukan, Tetiana Lviv Polytech Natl Univ 12 Bandera St UA-79013 Lvov Ukraine Ivano Frankivsk Natl Tech Univ Oil & Gas UA-76019 Ivano Frankivsk Ukraine

ISBN: (纸本)9783031827488;9783031827464;9783031827457

The regulated quality parameters of the products are ensured by different technologies. In particular, sustainable manufacturing provides important requirements and main tasks for Industry 4.0/5.0. The priority directions to improve the sustainability of product manufacturing are associated with the simulation of machining processes by cutting, complex assurance of the technological system at parts machining, and the development of practical techniques for reliable measurement of the technological parameters of products. In the paper, a developed technique is implemented to estimate the surface layer of aluminum castings after step-by-step machining using rough and finish milling using the LM-hardness method. The degree of the degradation of the surface material of the workpieces is analyzed comprehensively using indicators of the criterion of surface homogeneity: coefficient of variation nu;Weibull homogeneity coefficient (m), and indicators related to it: material constant A(m), technological damageability D, and the intensity of increasing of the technological damageability j(D). It is established that step-by-step machining of workpieces by rough and finishing milling does not change the structurally homogeneous state of the material of the blanks. An increase in power loads at rough milling with manual feed of the working table of the metal-cutting machine creates a gradient structure in the workpieces. It increases the susceptibility to damage of the surface layers of workpiece material. Reduction of power characteristics at finish milling with automatic feed of the working table of the metal-cutting machine reduces the number of structural stress concentrators that ensure regulated parameters of products. Further investigations in that research direction are offered.

关键词： Sustainable Manufacture Technological Inheritability Technological Damageability

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Digital Twins of Manufacturing Processes Under Industry 5.0 2nd

Digital Twins of Manufacturing Processes Under Industry 5.0

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2nd European Symposium on Artificial Intelligence in Manufacturing-ESAIM

作者： Papacharalampopoulos, Alexios Sabatakakis, Kyriakos Karagianni, Olga Maria Stavropoulos, Panagiotis Univ Patras Mech Engn & Aeronaut Dept Lab Mfg Syst & Automat LMS Patras 26504 Greece

ISBN: (纸本)9783031864919;9783031864896;9783031864889

Digital Twins of manufacturing processes are expected to boost processes' performance and efficiency, since they are able to run optimization in real-time and provide feedback and/or control to them. At the same time, their adaptivity allows for uncertainty handling, through specific parameters estimation or addressing the processes in a robust way. However, it is still pending to investigate how the emerging Industry 5.0 and the relevant viewpoints of the involved technologies will affect the operation of the digital twins. To this end, herein, a multifold and systematic analysis is run to see how Industry 5.0 affects the digital twin concept, taking into account human centricity in terms of inclusion and empowerment. Next sustainability and resilience are also studied under the same context. To achieve this, a hypothetical case study of Additive Manufacturing optimization is taken into consideration, as well as the link to other manufacturing functionalities (as jobs), for the sake of completeness.

关键词： Digital Twin Industry 5.0 Human Centricity Sustainability Resilience

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Modeling of Gas-Dynamic Processes of Wave Low-Temperature Heat Generators Dynamic Gas Distribution 6th

Modeling of Gas-Dynamic Processes of Wave Low-Temperature He...

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6th Grabchenko's International Conference on Advanced Manufacturing Processes

作者： Dymertsov, Dmytro Simon Kuznets Kharkiv Natl Univ Econ 9-ANauki Ave UA-61166 Kharkiv Ukraine

ISBN: (纸本)9783031827488;9783031827464;9783031827457

With the development of modern technologies, the application of mathematical modeling in studying various physical processes has become a very relevant topic for researchers. The rapid change of physical processes does not allow for studying the process more deeply, which is precisely what prompts the researcher to use modeling and sequential programming of mathematics. Developing the theory of nonlinear oscillations of real systems encountered various difficulties;therefore, experiments of gas-dynamic oscillations on simple models are quite relevant. Analyzing the development of refrigerating technology and mathematical modeling, a promising method of obtaining cold was chosen based on the oscillating process of gases arising in blocked tubes. These processes are included in the operation of cold wave generators. The simplicity of constructions and the quick change of processes in the generator made it possible to use mathematical modeling, allowing you to study the processes of generators perfectly. Low temperatures and mathematical modeling together went through different stages of development, as a result of which they penetrated various spheres of human activity. The operation of generators is quite interesting from the point of view of the cryogenic and refrigerating direction of the development of machine-less gas-dynamic methods of obtaining low temperatures. This device combines simplicity and reliability of the design, unlike other refrigerating machines, as it has simple moving parts in its design or does not have them at all. Wave generators have found their application in energy, the food industry, and others.

关键词： Hartmann Tube Wave Generators Heat Generators Low Temperature

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