Relevant bibliographies by topics / Algorithme graphique

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Algorithme graphique'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 July 2025

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Journal articles on the topic "Algorithme graphique"

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Baray, Jérôme, Gérard Cliquet, and Yves Soulabail. "Communautés thématiques et image des groupes de la grande distribution française dans les médias." Vie & sciences de l'entreprise N° 216-217, no. 1 (2023): 313–23. http://dx.doi.org/10.3917/vse.216.0313.

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L’objet de la présente recherche est l’analyse de l’image de la grande distribution en France à travers le prisme des 13 138 articles de presse les plus consultés des réseaux sociaux sur la période mars 2019 - février 2020. La méthode utilisée se fonde sur (1) le moissonnage de ces articles, (2) l’analyse sémantique et l’identification de communautés thématiques grâce à l’algorithme de Louvain, (3) la représent
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Brait, Maximilian, Eduard Koppensteiner, Gerhard Schindelbacher, Jiehua Li, and Peter Schumacher. "Artificial Intelligence Approaches to Determine Graphite Nodularity in Ductile Iron." Journal of Casting & Materials Engineering 5, no. 4 (2021): 94–102. http://dx.doi.org/10.7494/jcme.2021.5.4.94.

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The complex metallurgical interrelationships in the production of ductile cast iron can lead to enormous differences in graphite formation and local microstructure by small variations during production. Artificial intelligence algorithms were used to describe graphite formation, which is influenced by a variety of metallurgical parameters. Moreover, complex physical relationships in the formation of graphite morphology are also controlled by boundary conditions of processing, the effect of which can hardly be assessed in everyday foundry operations. The influence of relevant input parameters can be
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Ning, Huifeng, Faqiang Chen, Yunfeng Su, et al. "Modeling and prediction of tribological properties of copper/aluminum-graphite self-lubricating composites using machine learning algorithms." Friction 12, no. 6 (2024): 1322–40. http://dx.doi.org/10.1007/s40544-023-0847-2.

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AbstractThe tribological properties of self-lubricating composites are influenced by many variables and complex mechanisms. Data-driven methods, including machine learning (ML) algorithms, can yield a better comprehensive understanding of complex problems under the influence of multiple parameters, typically for how tribological performances and material properties correlate. Correlation of friction coefficients and wear rates of copper/aluminum-graphite (Cu/Al-graphite) self-lubricating composites with their inherent material properties (composition, lubricant content, particle size, processi
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Nargundkar, Aniket, Satish Kumar, and Arunkumar Bongale. "Multi-Objective Optimization of Friction Stir Processing Tool with Composite Material Parameters." Lubricants 12, no. 12 (2024): 428. https://doi.org/10.3390/lubricants12120428.

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Compared to base aluminum alloys, the surface composites of aluminum alloys are more widely used in the automotive, aerospace, and other industries. The ability to yield enhanced physical properties and a smoother microstructure has made friction stir processing (FSP) the method of choice for developing aluminum-based surface composites in recent times. In this work, the Goal Programming (GP) approach is adopted for the Multi-Objective Optimization of FSP processes with three Artificial Intelligence (AI)-based metaheuristics, viz., Artificial Bee Colony (ABC), Particle Swarm Optimization (PSO)
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Liu, Guangjun, Xiaoping Xu, Xiangjia Yu, and Feng Wang. "A New Method of Identifying Graphite Based on Neural Network." Wireless Communications and Mobile Computing 2021 (December 15, 2021): 1–10. http://dx.doi.org/10.1155/2021/4716430.

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The unique physical properties of graphite enable it to be applied in various fields of the national economy and people’s livelihood, which has very important industrial value. Many countries have listed graphite as a key mineral. To promote the transformation of the mining industry to informatization and intelligence, the realization of the intelligent recognition of graphite is particularly critical. Aiming at the problems of long time and low efficiency in manually identifying graphite, an improved AlexNet convolution neural network is proposed for graphite image recognition. First, we perf
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Hampton, J., H. Tesfalem, A. Fletcher, A. Peyton, and M. Brown. "Reconstructing the conductivity profile of a graphite block using inductance spectroscopy with data-driven techniques." Insight - Non-Destructive Testing and Condition Monitoring 63, no. 2 (2021): 82–87. http://dx.doi.org/10.1784/insi.2021.63.2.82.

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The radial depth profile of the electrical conductivity of the graphite channels in the UK's advanced gas-cooled reactors (AGRs) can be reconstructed and estimated by solving a non-linear optimisation problem using the mutual inductance spectra of a set of coils. This process is slow, as it requires many iterations of a forward solver. Alternatively, a data-driven approach can be used to provide an initial estimate for the optimisation algorithm, reducing the amount of time it takes to solve the ill-posed inverse problem. Two data-driven approaches are compared: multi-variable polynomial regre
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Wesley Huang, Wesley Huang, Zhi-Yuan Su Wesley Huang, Chia-Sui Wang Zhi-Yuan Su, Mark Yeh Chia-Sui Wang, and Jyh-Horng Chou Mark Yeh. "Graphite Classification of Gray Cast Iron in Metallographic via a Deep Learning Approach." 網際網路技術學刊 23, no. 4 (2022): 889–95. http://dx.doi.org/10.53106/160792642022072304023.

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<p>In addition to measurements of physical and mechanical properties, quality inspections also include metallographic analyses. When gray casting iron material, different manufacturing processes cause different microstructures in the material, whose metallographic images also perform large differences. The metallographic properties of gray iron can be divided into six types (from Type A to Type F). The proportion of types will influence the strength, wear resistance, and lifetime of specimens. The determination of type is usually dependent on manual judgments. In this study, two approach
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Du, Hua Yue, Yong Qian, Cheng Guo Wu, Yan Hua Huang, and Xia Li. "Digital Image Restoration in Microscopic Measurement." Applied Mechanics and Materials 421 (September 2013): 421–26. http://dx.doi.org/10.4028/www.scientific.net/amm.421.421.

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The requirement of the accuracy of microscopic measurements becomes more and more high, and traditional methods have been unable to meet the demands. Digital image deconvolution techniques are applied in microscopic measurement. By fabricating a pointolite, the point spread function of the optical system is measured, and then the geometric blurring in traditional microscopy is removed by using the maximum likelihood estimation algorithms and iteration threshold segmentation algorithms. The technique is applied to measure the total content of perlite and spheroidal graphite in spheroidal graphi
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Дроздов, М. Н., Ю. Н. Дроздов, А. И. Охапкин, С. А. Краев та М. А. Лобаев. "Новый подход к анализу фазового состава углеродсодержащих материалов методом времяпролетной вторично-ионной масс-спектрометрии". Письма в журнал технической физики 45, № 2 (2019): 50. http://dx.doi.org/10.21883/pjtf.2019.02.47225.17557.

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AbstractNew possibilities offered by the method of secondary ion mass spectrometry (SIMS) for analysis of the phase composition of carbon-containing materials are considered. Differences are established between the mass spectra of three carbon phases: diamond, diamond-like carbon (DLC), and graphite. A simple algorithm for the quantitative determination of different phases in two-phase systems diamond–graphite and DLC–graphite is proposed that is based on the measurement of relative intensities of secondary cluster ions such as C_8/C_5 and CsC_8/CsC_4. It is shown that nonuniform depth profile
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Hidalgo-Salaverri, J., J. Gonzalez-Martin, J. Ayllon-Guerola, et al. "Thermo-mechanical limits of a magnetically driven fast-ion loss detector in the ASDEX Upgrade tokamak." Journal of Instrumentation 17, no. 02 (2022): C02020. http://dx.doi.org/10.1088/1748-0221/17/02/c02020.

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Abstract A real-time control system is being developed for a magnetically driven Fast-Ion Loss Detector (FILD) at the ASDEX Upgrade tokamak. The insertion of the diagnostic head will be adjusted in real-time to react to changes in the graphite head temperature, plasma position and appearance of MHD instabilities. The graphite probe head of the detector is exposed to an intense heat flux (located ∼3–5 cm from separatrix). The control algorithm performance is constrained by: the graphite head sublimation temperature, the ultimate stress limit, the reaction time of the controller and the retracti
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Dissertations / Theses on the topic "Algorithme graphique"

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Forest, Vincent. "Robust object-based algorithms for direct shadow simulation." Toulouse 3, 2010. http://thesesups.ups-tlse.fr/1188/.

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En informatique graphique, les algorithmes de générations d'ombres évaluent la quantité de lumière directement perçue par une environnement virtuel. Calculer précisément des ombres est cependant coûteux en temps de calcul. Dans cette dissertation, nous présentons un nouveau système basé objet robuste, qui permet de calculer des ombres réalistes sur des scènes dynamiques et ce en temps interactif. Nos contributions incluent notamment le développement de nouveaux algorithmes de génération d'ombres douces ainsi que leur mise en oeuvre efficace sur processeur graphique. Nous commençons par formali
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Matenine, Dmitri. "Conception et évaluation d'un nouvel algorithme de reconstruction itérative en tomodensitométrie à faisceau conique implanté sur matériel graphique." Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/28171.

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La présente thèse s’inscrit dans le domaine de la physique médicale et, plus précisément, de l’imagerie médicale tridimensionnelle (3D) et de la dosimétrie 3D pour la radiothérapie. L’objectif global du travail était de concevoir et évaluer un nouvel algorithme de reconstruction itératif rapide pour la tomodensitométrie (TDM) à faisceau conique, une modalité consistant à créer des images 3D des densités du sujet imagé à partir de mesures d’atténuation partielle d’un faisceau de radiation incidente. Cet algorithme a été implanté sur matériel graphique (GPU), une plate-forme de calcul hautement
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Joachim-Paquet, Charles. "Extension et validation de bGPUMCD, un algorithme de calcul de dose Monte Carlo pour la curiethérapie implémenté sur processeur graphique." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/67061.

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Le présent mémoire présente les récents travaux de développement d’un algorithme de calcul de dose monte carlo en brachythérapie implémenté sur GPU (bGPUMCD, GPU Monte CarloDose for brachytherapy) ainsi que la validation des résultats et de la performance de celui-ci en vue d’une utilisation clinique future pour les cas de curiethérapie HDR et d’une utilisation académique permettant de remplacer l’utilisation de codes Monte Carlo plus lents dans le domaine académique. Les cas de test définis par le Groupe de travail sur les algorithmes de calcul de dose en curiethérapie (WG-DCAB, Working Group
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Bourque, Alexandre. "Amélioration du calcul de dose TG-43 en curiethérapie à bas débit par un algorithme de dose primaire et diffusée sur processeur graphique." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29312/29312.pdf.

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Les calculs de dose en curiethérapie à bas débit reposent depuis 1995 sur un formalisme qui considère le milieu irradié comme étant homogène et constitué d’eau afin de mieux accommoder les temps de calcul clinique. Ce travail présente une amélioration de ce formalisme dosimétrique issu du protocole TG-43 de l’AAPM (American Association of Physicists in Medicine), utilisé actuellement dans les systèmes de planification de traitement (SPT) clinique. Avec l’ajout d’un tracé radiologique pour tenir compte des hétérogénéités et en séparant
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Brambor, Jaromir. "Algorithmes de la morphologie mathématique pour les architectures orientées flux." Paris, ENMP, 2006. http://www.theses.fr/2006ENMP1368.

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Cette thèse est consacrée aux algorithmes de morphologie mathématique qui peuvent considérer les pixels d'une image comme un flux de données. Nous allons démontrer qu'un grand nombre d'algorithmes de morphologie mathématique peuvent être décrits comme un flux de données traversant des unités d'exécution. Nous verrons que cette approche peut aussi fonctionner sur des processeurs génériques possédant un jeu d'instructions multimédia ou sur des cartes graphiques. Pour décrire les algorithmes en flux de données, nous proposons d'utiliser le langage fonctionnel Haskell, ce qui nous permettra de déc
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Sukarno, Setyawan Ajie. "Méthodes d'approximation au problème de routage de véhicule pour une gestion de flotte de drones." Thesis, Valenciennes, Université Polytechnique Hauts-de-France, 2019. http://www.theses.fr/2019UPHF0022.

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Aujourd’hui, le drone joue un rôle important dans les activités civiles et deviendra de plus en plus important à l’avenir. Récemment, de nouvelles tendances se dirigent vers la gestion d’une flotte de drones afin de réaliser les missions données. Ce problème ouvre de nombreuses idées de recherche, et notre projet est fait pour répondre au défi, développer une plateforme de gestion de flotte de drones. Entre plusieurs approches, le problème de routage de véhicule (VRP) est une étude parfaite pour relever ce défi, afin de répartir les tâches et de trouver le meilleur chemin pour chaque drone, en tenan
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Picardat, Jean-François. "Controle d'execution, comprehension et apprentissage de plans d'actions : developpement de la methode de la table triangulaire." Toulouse 3, 1987. http://www.theses.fr/1987TOU30122.

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Synthese de l'etat de l'art en planification et en controle d'execution. Construction de la table triangulaire et etude de l'algorithme utilise en controle d'execution. Il est ensuite propose d'utiliser la table pour produire des explications sur un plan d'actions. Ce qui est ensuite generalise a une sequence de regles. Developpement d'un cadre formel pour l'emploi de cette table. Implantation dans un logiciel concu comme un environnement de programmation regroupant les primitives de traitemnt et de manipulation de tables
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Le, Texier Paul. "Exploitation graphique de calculs tridimensionnels eulériens." Bordeaux 1, 1988. http://www.theses.fr/1988BOR10584.

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Une methode d'exploitation des resultats numeriques de programmes de calculs tridimensionnels euleniens est proposee. Apres un compactage des donnees, en fonction d'un critere de selection, on construit une scene. Une analyse complete de cette scene est faite en utilisant des resultats recents de topologie discrete. Deux algorithmes en sont deduits : l'un pour la segmentation de la surface; l'autre pour une description de la position relative des surfaces des differents objets. La methode a ete testee sur des resultats de calculs de balistique terminale
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Do, Thanh Ha. "Sparse representations over learned dictionary for document analysis." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0021/document.

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Dans cette thèse, nous nous concentrons sur comment les représentations parcimonieuses peuvent aider à augmenter les performances pour réduire le bruit, extraire des régions de texte, reconnaissance des formes et localiser des symboles dans des documents graphiques. Pour ce faire, tout d'abord, nous donnons une synthèse des représentations parcimonieuses et ses applications en traitement d'images. Ensuite, nous présentons notre motivation pour l'utilisation de dictionnaires d'apprentissage avec des algorithmes efficaces pour les construire. Après avoir décrit l'idée générale des représentation
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Boutouhami, Khaoula. "Les modèles graphiques et logiques pour la gestion des informations incohérentes et incertaines." Electronic Thesis or Diss., Artois, 2017. http://www.theses.fr/2017ARTO0407.

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Dans cette thèse, nous avons étudié des modèles logiques et graphiques pour la gestion d'informations incohérentes et incertaines. Dans la première partie, nous avons étudié une extension des ontologies légères, exprimée ici dans les langages DL-Lite, dans le cadre de la théorie des possibilités basée sur le produit. Nous introduisons d'abord le langage et la sémantique utilisés pour représenter l'incertitude dans les ontologies légères. Nous montrons ensuite que, contrairement à la logique DL-Lite possibiliste basée sur l'opérateur min, le traitement des requêtes dans une théorie de possibili
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Books on the topic "Algorithme graphique"

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Ammeraal, L. Programming principles in computer graphics. Wiley, 1986.

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Ammeraal, L. Programming principles in computer graphics. Wiley, 1986.

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Farebrother, R. W. Visualizing statistical models and concepts. Marcel Dekker, 2002.

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Enderle, G. Advances in Computer Graphics I (Eurographic Seminars : Tutorials in Computer Science). Springer, 1986.

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Malgouyres. Algorithmes pour l'informatique graphique : Synthèse d'images et animations 3D, cours et exercices corrigés. Dunod, 2002.

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Apprentissage Facile Structures de Données et Algorithmes Java: Apprenez les Structures de Données et les Algorithmes de Manière Graphique et Simple. Independently Published, 2020.

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hu, yang. Apprentissage Facile Structures de Données et Algorithmes C: Apprenez les Structures de Données et les Algorithmes de Manière Graphique et Simple C. Independently Published, 2020.

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hu, yang. Apprentissage Facile Structures de Données et Algorithmes JavaScript: Apprenez les Structures de Données et les Algorithmes de Manière Graphique et Simple JavaScript. Independently Published, 2020.

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Apprentissage Facile Structures de Données et Algorithmes Python: Apprenez les Structures de Données et les Algorithmes de Manière Graphique et Simple Python. Independently Published, 2020.

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Visualizing Statistical Models and Concepts (Statistics: a Series of Textbooks and Monogrphs). CRC, 2002.

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Book chapters on the topic "Algorithme graphique"

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Weiß, K., and Ch Honsel. "New Algorithm to Calculate Liquid – Solid Shrinkage and Graphite Expansion." In Materials Science Forum. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-991-1.509.

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Wang, Jionghui, Yaokun Liu, Xueyu Huang, and Shaopeng Chang. "Graphite Ore Grade Classification Algorithm Based on Multi-scale Fused Image Features." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-55471-1_14.

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Huang, Xueyu, Haoyu Shi, Yaokun Liu, and Haoran Lu. "Image Classification Algorithm for Graphite Ore Carbon Grade Based on Multi-scale Feature Fusion." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-55471-1_13.

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Ameer, Aatif, Vikas Tiwari, Vansh Pokhriyal, Alok Saxena, Divakar Tiwari, and Ranjeet Kumar Singh. "Optimization of Glass, Carbon and Graphite Fiber Mono Composite Leaf Spring Using Genetic Algorithm." In Computational and Experimental Methods in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2857-3_50.

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Sabbagh, Harold A., L. David Sabbagh, and Thomas M. Roberts. "A Multifrequency Algorithm for Inverting Eddy-Current Data and Reconstructing Three-Dimensional Anomalies in Graphite-Epoxy." In Review of Progress in Quantitative Nondestructive Evaluation. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-7763-8_42.

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Prakash, Pattan, V. D. Mytri, and P. S. Hiremath. "An improved algorithm for classification of graphite grains in cast iron microstructure images using geometric shape features." In Thinkquest~2010. Springer India, 2011. http://dx.doi.org/10.1007/978-81-8489-989-4_39.

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Talla, Gangadharudu, M. Muniraju, and Shaik Saida Vali. "Multi-objective Optimization of Graphite Powder Mixed Electric Discharge Machining Process Parameters on Inconel 625 Using Genetic Algorithm." In Recent Advances in Mechanical Engineering, Volume 2. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-2249-5_11.

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Mishra, Lipsamayee, Sanat Kumar Pattnaik, Trupti Ranjan Mahpatra, and Debadutta Mishra. "Multi-Objective Optimization of Nd: YAG Laser Micro-Drilling of Graphite/Epoxy Nanocomposite Using the Cuckoo Search Algorithm." In Springer Proceedings in Physics. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-7340-7_15.

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DELTORN, Jean-Marc. "L’artiste et l’automate." In Algorithmes et Société. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.4549.

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Les développements technologiques ont toujours été pour l'artiste source d'inspiration et d'exploration. L'outil informatique ne fait pas exception. L'avènement des dernières générations d'algorithmes dits «~d'apprentissage~» offre ainsi un terrain d'expression fertile allant de la musique aux arts graphiques, de la littérature au cinéma. L'algorithme devient, ici, un nouvel instrument dans la palette expressive des artistes, là, il offre à un large public des moyens d'accès inédits à la production d'œuvres susceptibles de rivaliser avec les créations des professionnels. Dans tous les cas, la
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Tesfalem Henok, Peyton Anthony, Fletcher Adam, Brown Matthew, and Chapman Bob. "Eddy Current Sensor and Inversion Technique for Estimation of the Electrical Conductivity Profile of the Graphite Bricks in an Advanced Gas-Cooled Reactor Core." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2017. https://doi.org/10.3233/978-1-61499-767-2-253.

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This paper presents a conductivity profiling technique of a graphite brick and a Finite Element (FE) model study of an eddy current (EC) probe, which may be used to inspect graphite bricks in an Advanced Gas-cooled Reactor (AGR) core. This work was initially concerned with investigation and optimisation of EC probes in terms of their sensitivity to the conducting graphite, particularly with depth, followed by the implementation of an optimised probe prototype, which was used to validate the FE model. The graphite inverse problems in this paper were solved using the measured data from a sample
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Conference papers on the topic "Algorithme graphique"

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Shu, Wei, Jionghui Wang, and Xueyu Huang. "Research on graphite ore grade classification based on the integration of multi-level features from ResNet and transformer." In International Conference on Algorithms, High Performance Computing and Artificial Intelligence, edited by Pavel Loskot and Liang Hu. SPIE, 2024. http://dx.doi.org/10.1117/12.3051710.

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ma, bei, Jinglu Kang, Jialong Zhao, et al. "Research on graphite ball surface defect detection algorithm based on YOLOv5." In Second Conference on Advanced Optical Manufacturing Technologies and Applications & Fourth Forum of Young Scientists on Advanced Optical Manufacturing, edited by Lingbao Kong, Guoyan Sun, Guofeng Zhang, and Jiang Guo. SPIE, 2024. http://dx.doi.org/10.1117/12.3047881.

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Balasubramaniam, Krishnan, and Navin S. Rao. "Ultrasonic Characterization of Composite Material Stiffness Properties Using Genetic Algorithms." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0210.

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Abstract In this paper, efforts on the ultrasonic measurements of material stiffness properties of fiber reinforced composites such as graphite-epoxy and glass-epoxy employing inverse methods based on Genetic Algorithms using noise-free oblique incidence data will be discussed. Phase velocity data as a function of the angle of refraction in non-symmetry planes for orthotropic uni-directional composite laminates were used as the input to the genetic algorithm. Optimal parameters were chosen from the sensitivity analysis of the stiffness constants using a direct approach. The inversion using thi
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Choudhury, Dwaipayan, Ananth Kalyanaraman, and Partha Pande. "GraphIte: Accelerating Iterative Graph Algorithms on ReRAM Architectures via Approximate Computing." In 2023 Design, Automation & Test in Europe Conference & Exhibition (DATE). IEEE, 2023. http://dx.doi.org/10.23919/date56975.2023.10137001.

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Rajput, Sandeep, Manish Paliwal, and Ajay Mahajan. "Mixture Model for Graphite Flake Orientation Distribution in a Used Rotor." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50791.

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We analyze the deformation of the substrate matrix and the shear forces it is exposed to through the geometry of graphite flakes in the substrate from samples already subjected to breaking pressure applications up to 30 bar. Microscopic Images of the cross-section of the brake pad polished to a 0.1 μm scale were examined. Statistical analysis was conducted, state vectors and variance-co-variance matrix were defined, and considered every state as a distribution. Parameters for each “shear deformation stage” were estimated using Expectation-Maximization algorithm. Finally, a mixture model was id
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Sarhadi, A., M. Tahani, F. Kolahan, and M. Sarhadi. "Multi-Objective Optimal Design of Sandwich Composite Laminates Using Simulated Annealing and FEM." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61606.

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Multi-objective optimal design of sandwich composite laminates consisting of high stiffness and expensive surface layers and low-stiffness and inexpensive core layer is addressed in this paper. The object is to determine ply angles and number of surface layers and core thickness in such way that natural frequency is maximized with minimal material cost and weight. A simulated annealing algorithm with finite element method is used for simultaneous cost and weight minimization and frequency maximization. The proposed procedure is applied to Graphite-Epoxy/Glass-Epoxy and Graphite-epoxy/Aluminum
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Dey, Sudip, Manoj Roy, and Amit Karmakar. "Finite Element Transient Dynamic Analysis of Delaminated Composite Conical Shells Subject to Low Velocity Impact." In ASME 2012 Gas Turbine India Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gtindia2012-9518.

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This paper investigates on the transient dynamic response of delaminated composite pretwisted shallow conical shells subjected to low velocity normal impact. Turbomachinery blades with low aspect ratio could be idealized as twisted rotating cantilever composite conical shells. To derive the dynamic equilibrium equation, Lagrange’s equation of motion is used for moderate rotational speeds neglecting the Coriolis effect. An eight noded isoparametric plate bending element is employed in the finite element formulation incorporating rotary inertia and effects of transverse shear deformation based o
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Honda, Shinya, Itsuro Kajiwara, and Yoshihiro Narita. "Multidisciplinary Design Optimization of Actuator Arrangements, Lay-Up Configurations and Control Systems for Smart Laminated Composite Structures." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3661.

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Structures and control systems of smart laminated composites consisting of graphite-epoxy composites and piezoelectric actuators are designed optimally for the vibration suppression. Placements of piezoelectric actuators, lay-up configurations of laminated composite plates and the H2 control system are employed as design variables and are optimized simultaneously by a simple genetic algorithm (SGA). An objective function is H2 performance with assuming that the state feedback is available. A multidisciplinary design optimization is performed with above three design variables and then the outpu
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Olson, Brandon, and Samuel Graham. "Extending the 3 Omega Method to Measure Thermal Conductivity Anisotropy in Three Dimensions." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72509.

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A simplified method of measuring three-dimensional thermal conductivity anisotropy has been developed around the popular 3ω method. This approach utilizes a pair of surface mounted test elements as both heating and sensing probes. 3ω has historically been used to measure thermal conductivity in homogeneous, low conductivity substrates and thin surface films. The present technique employs a combination of broad band frequency measurements and directionally oriented test elements to extract property information that was previously inaccessible. Data reduction is dramatically improved through the
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Karmazin, Alexander, Evgenia Kirillova, Wolfgang Seemann, and Pavel Syromyatnikov. "Methods for Computing 3D Steady-State Vibrations of Composites Using Green’s Functions." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40321.

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Spatial steady-state harmonic vibrations of an infinite layered composite plate with an arbitrary elastic anisotropy of each layer are considered in this paper. The required vector of mechanical displacements of arbitrary points for a layered structure can be represented in the form of a double inverse Fourier transform of the product of the Fourier transform of the Green’s matrix and the Fourier transform of the surface load vector. An algorithm for computing the Fourier inverse transform with the given load vector is presented. Reducing of the initial double integral to the repeated one and
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