Download or read book Approche pr dictive de l efficacit nerg tique dans les Clouds Datacenters written by Fréjus A. Roméo Gbaguidi and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avec la démocratisation des technologies du numérique, la construction d'un cyberespace globalisé s'est faite insidieusement, transformant littéralement notre mode de vie et notre vécu quotidien. Faire communiquer plus de 4 milliards d'individus à une vitesse devenue incontrôlable, nécessite l'invention de nouveaux concepts pour la production des services informatiques capable de s'adapter à ce défis. Le Cloud Computing, dans cette optique permet de fournir à travers des Datacenters, une partie ou la totalité des composants nécessaires aux entreprises pour la délivrance de leurs services dans les délais et avec des performances conformes aux exigences de leurs clients. Dès lors, la prolifération conséquente des Datacenters aux quatre coins du monde a mis au jour la préoccupante question de la quantité d'énergie nécessaire pour leur fonctionnement et la difficulté qui en résulte pour l'humanité dont les réserves actuelles ne sont pas extensibles à l'infini. Ainsi, il est apparu nécessaire de développer des techniques permettant de réduire la consommation électrique des Datacenters en minimisant les pertes d'énergie orchestrées sur les serveurs dont le moindre watt gaspillé entraine par effet de cascade une augmentation substantielle de la facture globale des Datacenters. Notre travail a consisté à faire dans un premier temps une revue de la littérature sur le sujet, puis de tester la capacité de quelques outils de prédiction à améliorer l'anticipation des risques de pertes d'énergie engendrer par la mauvaise allocation des machines virtuelles sur les serveurs. Cette étude s'est focalisée notamment sur les outil ARMA et les réseaux de neurones qui dans la littérature ont produit des résultats intéressants dans des domaines proches. Après cette étape, il nous est apparu que les outils ARMA bien qu'ayant des performances inférieures aux réseaux de neurones dans notre contexte, s'exécute dans plus rapidement et sont les plus adaptés pour être implémenter dans les environnements de Cloud Computing. Ainsi, nous avons utilisé les résultats de cette méthode pour améliorer le processus de prise de décision, notamment pour la re-allocation proactive des machines virtuelles avant qu'il n'entraine des sous-consommations des ressources sur les serveurs physiques ou des surconsommation pouvant induire des violations des accords de niveaux de service. Cette démarche a permis sur la base de nos simulations de réduire de plus de 5Kwh la consommation d'énergie dans une ferme de 800 serveurs et sur une durée d'une journée. Ce gain pourrait se révéler important lorsque l'on considère la taille énorme des datacenters modernes et que l'on se projette dans une durée relativement longue. Il serait encore plus intéressant d'approfondir cette recherche afin de généraliser l'intégration de cette approche prédictive dans les techniques existantes afin d'optimiser de façon significative les consommations d'énergie au sein des Datacenters tout en préservant les performances et la qualité de service indispensable dans le concept de Cloud Computing.
Download or read book Innovation in Information Systems and Technologies to Support Learning Research written by Mohammed Serrhini and published by Springer Nature. This book was released on 2019-11-30 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides glimpses into contemporary research in information systems & technology, learning, artificial intelligence (AI), machine learning, and security and how it applies to the real world, but the ideas presented also span the domains of telehealth, computer vision, the role and use of mobile devices, brain–computer interfaces, virtual reality, language and image processing and big data analytics and applications. Great research arises from asking pertinent research questions. This book reveals some of the authors’ “beautiful questions” and how they develop the subsequent “what if” and “how” questions, offering readers food for thought and whetting their appetite for further research by the same authors.
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Download or read book Recent Advances in Smart Manufacturing and Materials written by Rajeev Agrawal and published by Springer Nature. This book was released on 2021-07-22 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the International Conference on Evolution in Manufacturing (ICEM 2020), and examines a range of areas including internet-of-things for cyber manufacturing, data analytics for manufacturing systems and processes and materials. The topics covered include modeling simulation and decision making in cyber physical systems for supporting engineering and production management, innovative approach in materials development, biomaterial applications, and advancement in manufacturing and material technologies. The book also discusses sustainability in manufacturing and supply chain management including circular economy. The book will be a valuable reference for beginners, researchers, and professionals interested in smart manufacturing in engineering, production management and materials technology.
Download or read book FiWi Access Networks written by Martin Maier and published by Cambridge University Press. This book was released on 2011-12-15 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of broadband access networks toward bimodal fiber-wireless (FiWi) access networks, described in this book, may be viewed as the endgame of broadband access. After discussing the economic impact of broadband access and current worldwide deployment statistics, all the major legacy wireline and wireless broadband access technologies are reviewed. State-of-the-art GPON and EPON fiber access networks are described, including their migration to next-generation systems such as OCDMA and OFDMA PONs. The latest developments of wireless access networks are covered, including VHT WLAN, Gigabit WiMAX, LTE and WMN. The advantages of FiWi access networks are demonstrated by applying powerful network coding, heterogeneous optical and wireless protection, hierarchical frame aggregation, hybrid routing and QoS continuity techniques across the optical-wireless interface. The book is an essential reference for anyone working on optical fiber access networks, wireless access networks or converged FiWi systems.
Download or read book IoT for Smart Grids written by Kostas Siozios and published by Springer. This book was released on 2018-11-24 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the fundamentals of control theory for Internet of Things (IoT) systems and smart grids and its applications. It discusses the challenges imposed by large-scale systems, and describes the current and future trends and challenges in decision-making for IoT in detail, showing the ongoing industrial and academic research in the field of smart grid domain applications. It presents step-by-step design guidelines for the modeling, design, customisation and calibration of IoT systems applied to smart grids, in which the challenges increase with each system’s increasing complexity. It also provides solutions and detailed examples to demonstrate how to use the techniques to overcome these challenges, as well as other problems related to decision-making for successful implementation. Further, it anaylses the features of decision-making, such as low-complexity and fault-tolerance, and uses open-source and publicly available software tools to show readers how they can design, implement and customise their own system control instantiations. This book is a valuable resource for power engineers and researchers, as it addresses the analysis and design of flexible decision-making mechanisms for smart grids. It is also of interest to students on courses related to control of large-scale systems, since it covers the use of state-of-the-art technology with examples and solutions in every chapter. And last but not least, it offers practical advice for professionals working with smart grids.
Download or read book Smart About Cities written by Netexplo (France) and published by UNESCO Publishing. This book was released on 2020-09-23 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cambridge Handbook of Engineering Education Research written by Aditya Johri and published by Cambridge University Press. This book was released on 2014-02-10 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Handbook of Engineering Education Research is the critical reference source for the growing field of engineering education research, featuring the work of world luminaries writing to define and inform this emerging field. The Handbook draws extensively on contemporary research in the learning sciences, examining how technology affects learners and learning environments, and the role of social context in learning. Since a landmark issue of the Journal of Engineering Education (2005), in which senior scholars argued for a stronger theoretical and empirically driven agenda, engineering education has quickly emerged as a research-driven field increasing in both theoretical and empirical work drawing on many social science disciplines, disciplinary engineering knowledge, and computing. The Handbook is based on the research agenda from a series of interdisciplinary colloquia funded by the US National Science Foundation and published in the Journal of Engineering Education in October 2006.
Download or read book Engineering written by Unesco and published by UNESCO. This book was released on 2010-01-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews engineering's importance to human, economic, social and cultural development and in addressing the UN Millennium Development Goals. Engineering tends to be viewed as a national issue, but engineering knowledge, companies, conferences and journals, all demonstrate that it is as international as science. The report reviews the role of engineering in development, and covers issues including poverty reduction, sustainable development, climate change mitigation and adaptation. It presents the various fields of engineering around the world and is intended to identify issues and challenges facing engineering, promote better understanding of engineering and its role, and highlight ways of making engineering more attractive to young people, especially women.--Publisher's description.
Download or read book Engineering for Sustainable Development written by International Centre for Engineering Education and published by UNESCO Publishing. This book was released on 2021-03-02 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report highlights the crucial role of engineering in achieving each of the 17 SDGs. It shows how equal opportunities for all is key to ensuring an inclusive and gender balanced profession that can better respond to the shortage of engineers for implementing the SDGs. It provides a snapshot of the engineering innovations that are shaping our world, especially emerging technologies such as big data and AI, which are crucial for addressing the pressing challenges facing humankind and the planet. It analyses the transformation of engineering education and capacity-building at the dawn of the Fourth Industrial Revolution that will enable engineers to tackle the challenges ahead. It highlights the global effort needed to address the specific regional disparities, while summarizing the trends of engineering across the different regions of the world.
Download or read book Graph based Keyword Spotting written by Stauffer Michael and published by World Scientific. This book was released on 2019-07-24 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keyword Spotting (KWS) has been proposed as a flexible and more error-tolerant alternative to full transcriptions. In most cases, it allows to retrieve arbitrary query words in handwritten historical document.This comprehensive compendium gives a self-contained preamble and visually attractive description to the field of graph-based KWS. The volume highlights a profound insight into each step of the whole KWS pipeline, viz. image preprocessing, graph representation and graph matching.Written by two world-renowned co-authors, this unique title combines two very current research fields of graph-based pattern recognition and document analysis. The book serves as an attractive teaching material for graduate students, as well as a useful reference text for professionals, academics and researchers.
Download or read book Social Media in Industrial China written by Xinyuan Wang and published by UCL Press. This book was released on 2016-09-13 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life outside the mobile phone is unbearable.’ Lily, 19, factory worker. Described as the biggest migration in human history, an estimated 250 million Chinese people have left their villages in recent decades to live and work in urban areas. Xinyuan Wang spent 15 months living among a community of these migrants in a small factory town in southeast China to track their use of social media. It was here she witnessed a second migration taking place: a movement from offline to online. As Wang argues, this is not simply a convenient analogy but represents the convergence of two phenomena as profound and consequential as each other, where the online world now provides a home for the migrant workers who feel otherwise ‘homeless’. Wang’s fascinating study explores the full range of preconceptions commonly held about Chinese people – their relationship with education, with family, with politics, with ‘home’ – and argues why, for this vast population, it is time to reassess what we think we know about contemporary China and the evolving role of social media.
Download or read book Smart Cities Big Data Civic Hackers and the Quest for a New Utopia written by Anthony M. Townsend and published by W. W. Norton & Company. This book was released on 2013-10-07 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: An unflinching look at the aspiring city-builders of our smart, mobile, connected future. From Beijing to Boston, cities are deploying smart technology—sensors embedded in streets and subways, Wi-Fi broadcast airports and green spaces—to address the basic challenges faced by massive, interconnected metropolitan centers. In Smart Cities, Anthony M. Townsend documents this emerging futuristic landscape while considering the motivations, aspirations, and shortcomings of the key actors—entrepreneurs, mayors, philanthropists, and software developers—at work in shaping the new urban frontier.
Download or read book Nanotechnology 2013 written by NSTI and published by CRC Press. This book was released on 2013-05-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NanoScience and Technology Institute (NSTI) nanotechnology conferences have built a tradition of being the most prestigious forum in the world for leading nano scientists, and Nanotech 2013 is no exception. Top nano scientists offer an up-to-date global perspective on the latest developments in nanotechnology. More than mere proceedings, these volumes cut across every scientific and engineering discipline to provide the most complete record of current accomplishments in nanotech. Volume 2 covers electronic devices, fabrication, MEMS, fluidics, and computation.
Download or read book Nonsmooth Optimization written by Claude Lemarechal and published by Elsevier. This book was released on 2014-05-19 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonsmooth Optimization contains the proceedings of a workshop on non-smooth optimization (NSO) held from March 28 to April 8,1977 in Austria under the auspices of the International Institute for Applied Systems Analysis. The papers explore the techniques and theory of NSO and cover topics ranging from systems of inequalities to smooth approximation of non-smooth functions, as well as quadratic programming and line searches. Comprised of nine chapters, this volume begins with a survey of Soviet research on subgradient optimization carried out since 1962, followed by a discussion on rates of convergence in subgradient optimization. The reader is then introduced to the method of subgradient optimization in an abstract setting and the minimal hypotheses required to ensure convergence; NSO and nonlinear programming; and bundle methods in NSO. A feasible descent algorithm for linearly constrained least squares problems is described. The book also considers sufficient minimization of piecewise-linear univariate functions before concluding with a description of the method of parametric decomposition in mathematical programming. This monograph will be of interest to mathematicians and mathematics students.
Download or read book Applications of Functional Analysis in Mathematical Physics written by S L (Sergeĭ Lʹvovich) 190 Sobolev and published by Hassell Street Press. This book was released on 2021-09-09 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
