Download or read book Ordonnancement des op rations dans une unit d extrusion written by Dhiaeddine Zaatour and published by . This book was released on 2016 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les travaux de ce mémoire traitent du problème d'ordonnancement et d'optimisation de la production dans un environnement de plusieurs machines en présence de contraintes sur les ressources matérielles dans une usine d'extrusion plastique. La minimisation de la somme pondérée des retards est le critère économique autour duquel s'articule cette étude car il représente un critère très important pour le respect des délais. Dans ce mémoire, nous proposons une approche exacte via une formulation mathématique capable des donner des solutions optimales et une approche heuristique qui repose sur deux méthodes de construction de solution sérielle et parallèle et un ensemble de méthodes de recherche dans le voisinage (recuit-simulé, recherche avec tabous, GRASP et algorithme génétique) avec cinq variantes de voisinages. Pour être en totale conformité avec la réalité de l'industrie du plastique, nous avons pris en considération certaines caractéristiques très fréquentes telles que les temps de changement d'outils sur les machines lorsqu'un ordre de fabrication succède à un autre sur une machine donnée. La disponibilité des extrudeuses et des matrices d'extrusion représente le goulot d'étranglement dans ce problème d'ordonnancement. Des séries d'expérimentations basées sur des problèmes tests ont été effectuées pour évaluer la qualité de la solution obtenue avec les différents algorithmes proposés. L'analyse des résultats a démontré que les méthodes de construction de solution ne sont pas suffisantes pour assurer de bons résultats et que les méthodes de recherche dans le voisinage donnent des solutions de très bonne qualité. Le choix du voisinage est important pour raffiner la qualité de la solution obtenue. Mots-clés : ordonnancement, optimisation, extrusion, formulation mathématique, heuristique, recuit-simulé, recherche avec tabous, GRASP, algorithme génétique.

Download or read book Gas Turbines and Jet Propulsion written by United States. National Bureau of Standards and published by . This book was released on 1947 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific Canadian Mechanics Magazine and Patent Office Record written by Canada. Patent Office and published by . This book was released on 1966-03 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Connected Objects in Health written by Laure Beyala and published by Elsevier. This book was released on 2017-08-10 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connected objects today present a range of opportunities in medicine. We live in a new digital era where the monitoring and analysis of one's own health information no longer belongs solely to the realm of science fiction. The success of these new devices resides in their usage, which integrates seamlessly into the daily life of the user in order to continually collect the maximum amount of data. These medical connected devices therefore constitute a new hope in transforming user experience as well as the care pathway. They offer a better level of support and a better quality of life for those suffering from chronic illnesses or mental, sensorial or physical disabilities. However, these solutions also pose systematic problems, especially regarding the risks linked to their usage. This book presents a cartography which clearly details all the potential risk scenarios linked to the usage of connected devices as well as the actions which should be undertaken to promote balanced governance and guarantee the development of high-quality medical devices. - Aims to help the reader understand the difference between a connected object and a medical connected device - Identifies and evaluates all the potential risks and perspectives associated with the use of connected medical devices - Shows how to make a comprehensive risk analysis with standards like ISO 31000 and 14971

Download or read book Energy Management in Wireless Sensor Networks written by Youcef Touati and published by ISTE Press - Elsevier. This book was released on 2017-03-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Management in Wireless Sensor Networks discusses this unavoidable issue in the application of Wireless Sensor Networks (WSN). To guarantee efficiency and durability in a network, the science must go beyond hardware solutions and seek alternative software solutions that allow for better data control from the source to delivery. Data transfer must obey different routing protocols, depending on the application type and network architecture. The correct protocol should allow for fluid information flow, as well as optimizing power consumption and resources - a challenge faced by dense networks. The topics covered in this book provide answers to these needs by introducing and exploring computer-based tools and protocol strategies for low power consumption and the implementation of routing mechanisms which include several levels of intervention, ranging from deployment to network operation.

Download or read book Quantitative and Statistical Data in Education written by Michel Larini and published by John Wiley & Sons. This book was released on 2018-12-18 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents different data collection and representation techniques: elementary descriptive statistics, confirmatory statistics, multivariate approaches and statistical modeling. It exposes the possibility of giving more robustness to the classical methodologies of education sciences by adding a quantitative approach. The fundamentals of each approach and the reasons behind them are methodically analyzed, and both simple and advanced examples are given to demonstrate how to use them. Subsequently, this book can be used both as a course for the uninitiated and as an accompaniment for researchers who are already familiar with these concepts.

Download or read book Acoustic Emission and Durability of Composite Materials written by Nathalie Godin and published by John Wiley & Sons. This book was released on 2018-05-08 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, two kinds of analysis based on acoustic emission recorded during mechanical tests are investigated. In the first, individual, analysis, acoustic signature of each damage mechanism is characterized. So with a clustering method, AE signals that have similar shapes or similar features can be group together into a cluster. Afterwards, each cluster can be linked with a main damage. The second analysis is based on a global AE analysis, on the investigation of liberated energy, with a view to identify a critical point. So beyond this characteristic point, the criticality can be modeled with a power-law in order to evaluate time to failure.

Download or read book Biostatistics and Computer based Analysis of Health Data using Stata written by Christophe Lalanne and published by Elsevier. This book was released on 2016-09-06 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the Biostatistics and Health Sciences Set focuses on statistics applied to clinical research. The use of Stata for data management and statistical modeling is illustrated using various examples. Many aspects of data processing and statistical analysis of cross-sectional and experimental medical data are covered, including regression models commonly found in medical statistics. This practical book is primarily intended for health researchers with basic knowledge of statistical methodology. Assuming basic concepts, the authors focus on the practice of biostatistical methods essential to clinical research, epidemiology and analysis of biomedical data (including comparison of two groups, analysis of categorical data, ANOVA, linear and logistic regression, and survival analysis). The use of examples from clinical trials and epideomological studies provide the basis for a series of practical exercises, which provide instruction and familiarize the reader with essential Stata packages and commands. - Provides detailed examples of the use of Stata for common biostatistical tasks in medical research - Features a work program structured around the four previous chapters and a series of practical exercises with commented corrections - Includes an appendix to help the reader familiarize themselves with additional packages and commands - Focuses on the practice of biostatistical methods that are essential to clinical research, epidemiology, and analysis of biomedical data

Download or read book Big Data and Ethics written by Jérôme Béranger and published by Elsevier. This book was released on 2016-07-21 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Faced with the exponential development of Big Data and both its legal and economic repercussions, we are still slightly in the dark concerning the use of digital information. In the perpetual balance between confidentiality and transparency, this data will lead us to call into question how we understand certain paradigms, such as the Hippocratic Oath in medicine. As a consequence, a reflection on the study of the risks associated with the ethical issues surrounding the design and manipulation of this "massive data seems to be essential.This book provides a direction and ethical value to these significant volumes of data. It proposes an ethical analysis model and recommendations to better keep this data in check. This empirical and ethico-technical approach brings together the first aspects of a moral framework directed toward thought, conscience and the responsibility of citizens concerned by the use of data of a personal nature. - Defines Big Data applications in health - Presents the ethical value of the medical datasphere via the description of a model of an ethical analysis of Big Data - Provides the recommendations and steps necessary for successful management and governance of personal health data - Helps readers determine what conditions are essential for the development of the study of Big Data

Download or read book Measuring Mental Disorders written by Philippe Le Moigne and published by Elsevier. This book was released on 2018-11-21 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collective work draws on the perspective of social sciences, mobilizing perspectives from the sociology of science, the history of psychiatry, medical ethnography and public policy analysis. This initiative, which has no precedent in social sciences, is surrounded by an original, if not apparently paradoxical statement: considering that the deployment of these processes, strictly formal and depersonalized, is justified in becoming the rule in a society known as "individuals". - Presents the measurement of mental disorders (tests / scales) across the various sectors - Determines the underpinning of this measure and its performance - Explains the rise of these tests and its success - Understands its impact on users

Download or read book Handbook of Food Science and Technology 3 written by Romain Jeantet and published by John Wiley & Sons. This book was released on 2016-06-14 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third volume in the Handbook of Food Science and Technology Set explains the processing of raw materials into traditional food (bread, wine, cheese, etc.). The agri-food industry has evolved in order to meet new market expectations of its products; with the use of separation and assembly technologies, food technologists and engineers now increasingly understand and control the preparation of a large diversity of ingredients using additional properties to move from the raw materials into new food products. Taking into account the fundamental basis and technological specificities of the main food sectors, throughout the three parts of this book, the authors investigate the biological and biochemical conversions and physicochemical treatment of food from animal sources, plant sources and food ingredients.

Download or read book Crystallization and Crystallizers written by Jean-Paul Duroudier and published by Elsevier. This book was released on 2016-11-22 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallization and Crystallizers, part of the Industrial Equipment for Chemical Engineering set, defines how to perform the selection and calculation of equipment needed in the basic operations of process engineering, offering reliable and simple methods, with this volume providing a comprehensive focus on crystallization and crystallizers. Throughout these concise and easy-to-use books, the author uses his vast practical experience and precision knowledge of global research to present an in-depth study of a variety of aspects within the field of chemical engineering. - The formation of crystals (or nucleation) is studied in its theoretical and practical details - The author also provides methods needed for understanding the equipment used in applied thermodynamics - The chapters are complemented with appendices which provide additional information as well as any associated references

Download or read book Biostatistics and Computer based Analysis of Health Data Using SAS written by Christophe Lalanne and published by Elsevier. This book was released on 2017-06-22 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the Biostatistics and Health Sciences Set focuses on statistics applied to clinical research.The use of SAS for data management and statistical modeling is illustrated using various examples. Many aspects of data processing and statistical analysis of cross-sectional and experimental medical data are covered, including regression models commonly found in medical statistics. This practical book is primarily intended for health researchers with a basic knowledge of statistical methodology. Assuming basic concepts, the authors focus on the practice of biostatistical methods essential to clinical research, epidemiology and analysis of biomedical data (including comparison of two groups, analysis of categorical data, ANOVA, linear and logistic regression, and survival analysis). The use of examples from clinical trials and epidemiological studies provide the basis for a series of practical exercises, which provide instruction and familiarize the reader with essential SAS commands. - Presents the use of SAS software in the statistical approach for the management of data modeling - Includes elements of the language and descriptive statistics - Supplies measures of association, comparison of means, and proportions for two or more samples - Explores linear and logistic regression - Provides survival data analysis

Download or read book Health Education and Prevention written by Frank Pizon and published by John Wiley & Sons. This book was released on 2019-04-09 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social representations, beliefs, values and knowledge are just some of the aspects that affect how the beneficiaries of preventative health measures perceive their wellbeing. Health Education and Prevention questions and analyzes these concepts in order to consider new ways of theorizing patients’ conceptions of their health. From a methodological point of view, these analyses are put into practice with the design of prevention tools and devices. The use of a corpora of photographs is particularly meaningful in this respect. This book offers an authoritative perspective by noting important points of vigilance in training, and especially by distinguishing instructive contents conducive to the development of an explicit health pedagogy for more effective prevention measures. A model for categorizing situations integrating both educational and healthcare paths is also proposed.

Download or read book CO2 Biofixation by Microalgae written by Sihem Tebbani and published by John Wiley & Sons. This book was released on 2014-07-09 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the consequences of globa l warming and significant greenhouse gas emissions, several ideas have been studied to reduce these emissions or to suggest solut ions for pollutant remov al. The most promising ideas are reduced consumption, waste recovery and waste treatment by biological systems. In this latter category, studies have demonstrated that the use of microalgae is a very promising solution for the biofixation of carbon dioxide. In fact, these micro-organisms are able to offset high levels of CO2 thanks to photosynthesis. Microalgae are also used in various fields (food industry, fertilizers, biofuel, etc.). To obtain a n optimal C O2 sequestration us ing micr oal gae, their cul tivatio n has to be c arried ou t in a f avorable e nvironment, corresponding to optimal operating conditions (temperature, nutrients, pH, light, etc.). Therefore, microalgae are grown in an enclosure, i.e. photobioreactors, which notably operate in continuous mode. This type of closed reactor notably enables us to reduce culture contamination, to improve CO2 transfer and to better control the cultivation system. This last point involves the regulation of concentrations (biomass, substrate or by-product) in addition to conventional regulations (pH, temperature). To do this, we have to establish a model of the system and to identify its parameters; to put in place estimators in order to rebuild variables that are not measured online (software sensor); and finally to implement a control law, in order to maintain the system in optimal conditions despite modeling errors and environmental disturbances that can have an influence on the system (pH variations, temperature, light, biofilm appearance, etc.).

Download or read book Connected Healthcare for the Citizen written by Robert Picard and published by Elsevier. This book was released on 2018-11-23 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Value of Connected Things for Healthcare is based on feedback from members of the LLSA Forum, patients, healthcare professionals, Living Labs, industrialists, researchers and institutional actors confronted with the design, development, implementation and use of these types of tools that penetrate health and communicate data. The term connected object refers to devices that continuously collect data through these objects, providing the state of health of people wherever they are and whatever they do. These objects allow clinical researchers to study new phenomena that have hitherto escaped observations in institutions. However, the mobilization of these technologies in this context poses technical questions because the requirements of a remote, continuous operation are high. What is termed connected health emphasizes the human dimension of the subject, i.e., citizens, patients, health professionals, territorial communities, professional networks, institutions and associations. The questions of who benefits and ethical considerations are paramount to this discussion. - Brings awareness of the complexity of connected objects - Presents examples that highlight the use of connected codes - Describes new devices and related services - Identifies the challenges associated with solving these problems

Download or read book Statistical Methods for Overdispersed Count Data written by Jean-Francois Dupuy and published by Elsevier. This book was released on 2018-11-19 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical Methods for Overdispersed Count Data provides a review of the most recent methods and models for such data, including a description of R functions and packages that allow their implementation. All methods are illustrated on datasets arising in the field of health economics. As several tools have been developed to tackle over-dispersed and zero-inflated data (such as adjustment methods and zero-inflated models), this book covers the topic in a comprehensive and interesting manner. - Includes reading on several levels, including methodology and applications - Presents the state-of-the-art on the most recent zero-inflated regression models - Contains a single dataset that is used as a common thread for illustrating all methodologies - Includes R code that allows the reader to apply methodologies