Download or read book Les r seaux Wifi et sa planification en environnement indoor written by Nasri Hasni and published by Editions Universitaires Europeennes. This book was released on 2015-02-09 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: La transmission radio est utilisee dans la communication sans fil des unites mobiles. On distingue habituellement plusieurs categories de reseaux sans fils, selon le perimetre geographique tel que le reseau Wifi qui permet de connecter des ordinateurs a un reseau local ainsi qu'a l'internet. En environnement indoor, l'optimisation des ressources et l'amelioration de signal nous exigent a bien planifier nos equipements, d'ou developper un outil informatique permettant d'assurer ses taches.
Download or read book M thodologies pour la planification de r seaux locaux sans fil written by Katia Runser (Auteur d'une thèse en télécommunications (2005)).) and published by . This book was released on 2005 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif du travail présenté dans cette thèse est de proposer une stratégie de planification automatique des réseaux locaux sans-fil de type WiFi en environnement Indoor. Il s'agit de rechercher une ou plusieurs configurations des points d'accès (AP) au réseau garantissant une certaine qualité de service (QoS). La qualité d'une telle stratégie dépend en grande partie du modèle de prédiction de couverture radio utilisé. La première partie de ces travaux a donc été consacrée au développement et à la validation des prédictions de couverture radio du modèle Multi-Resolution Fourier Domain ParFlow (MR-FDPF). Une étape de calibration du modèle nous a permis de définir un paramétrage adéquat du modèle MR-FDPF pour des bâtiments standard, garantissant une erreur quadratique de moins de 5 dB. La seconde partie se concentre sur le problème de planification wLAN. Des critères de couverture radio, de minimisation des interférences, d'optimisation de la bande passante et d'amélioration des services de localisation ont été proposés. Deux heuristiques de recherche basées sur une approche Tabou ont été développées : une heuristique mono-objectif et une heuristique multiobjectif. Ces travaux ont mis en évidence les avantages d'une recherche multiobjectif car elle permet d'obtenir plusieurs solutions appartenant au front de Pareto de l'espace des fonctions associées au problème traité. Chaque solution représente alors un compromis différent entre les critères du problème à résoudre. Le choix de la solution à déployer se fait à posteriori dans l'ensemble limité des 'bonnes' solutions.
Download or read book Sustainable food planning evolving theory and practice written by André Viljoen and published by Wageningen Academic Publishers. This book was released on 2012-03-30 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: With over half the world's population now deemed to be urbanised, cities are assuming a larger role in political debates about the security and sustainability of the global food system. Hence, planning for sustainable food production and consumption is becoming an increasingly important issue for planners, policymakers, designers, farmers, suppliers, activists, business and scientists alike. The rapid growth of the food planning movement owes much to the fact that food, because of its unique, multi-functional character, helps to bring people together from all walks of life. In the wider contexts of global climate change, resource depletion, a burgeoning world population, competing food production systems and diet-related public health concerns, new paradigms for urban and regional planning capable of supporting sustainable and equitable food systems are urgently needed. This book addresses this urgent need. By working at a range of scales and with a variety of practical and theoretical models, this book reviews and elaborates definitions of sustainable food systems, and begins to define ways of achieving them. To this end 4 different themes have been defined as entry-points into the discussion of 'sustainable food planning'. These are (1) urban agriculture, (2) integrating health, environment and society, (3) food in urban design and planning and (4) urban food governance.
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 Resourcing an Agroecological Urbanism written by Chiara Tornaghi and published by Routledge. This book was released on 2021-03-07 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foregrounding an innovative and radical perspective on food planning, this book makes the case for an agroecological urbanism in which food is a key component in the reinvention of new and just social arrangements and ecological practices. Building on state-of-the-art and participatory research on farming, urbanism, food policy and advocacy in the field of food system transformation, this book changes the way food planning has been conceptualised to date and invites the reader to fully embrace the transformative potential of an agroecological perspective. Bringing in dialogue from both the rural and urban, the producer and consumer, this book challenges conventional approaches that see them as separate spheres, whose problems can only be solved by a reconnection. Instead, it argues for moving away from a ‘food-in-the-city’ approach towards an ‘urbanism’ perspective, in which the economic and spatial processes that currently drive urbanisation will be unpacked and dissected, and new strategies for changing those processes into more equal and just ones are put forward. Drawing on the nascent field of urban political agroecology, this text brings together: i) theoretical re-conceptualisations of urbanism in relation to food planning and the emergence of new agrarian questions, ii) critical analysis of experimental methodologies and performing arts for public dialogue, reflexivity and food sovereignty research, iii) experiences of resourceful land management, including urban land use and land tenure change, and iv) theoretical and practical exploration of post-capitalist economics that bring consumers and producers together to make the case for an agroecological urbanism. Aimed at advanced students and academics in agroecology, sustainable food planning, urban geography, urban planning and critical food studies, this book will also be of interest to professionals and activists working with food systems in both the Global North and the Global South.
Download or read book Preventing Disease Through Healthy Environments written by Annette Prüss-Üstün and published by World Health Organization. This book was released on 2016 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The main message emerging from this new comprehensive global assessment is that premature death and disease can be prevented through healthier environments--and to a significant degree. Analysing the latest data on the environment-disease nexus and the devastating impact of environmental hazards and risks on global health, backed up by expert opinion, this report covers more than 130 diseases and injuries. The analysis shows that 23% of global deaths (and 26% of deaths among children under five) are due to modifiable environmental factors--and therefore can be prevented. Stroke, ischaemic heart disease, diarrhoea and cancers head the list. People in low-income countries bear the greatest disease burden, with the exception of noncommunicable diseases. The report's unequivocal evidence should add impetus to coordinating global efforts to promote healthy environments--often through well-established, cost-effective interventions. This analysis will inform those who want to better understand the transformational spirit of the Sustainable Development Goals agreed by Heads of State in September 2015. The results of the analysis underscore the pressing importance of stronger intersectoral action to create healthier environments that will contribute to sustainably improving the lives of millions around the world."--Page 4 of cover.
Download or read book Outdoor Air Pollution written by IARC Working Group on the Evaluation of Carcinogenic Risks to Humans and published by IARC Monographs on the Evaluat. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This publication represents the views and expert opinions of an IARC Working Group on the Evaluation of Carcinogenic Risk to Humans, which met in Lyon, 8-15 October 2013."
Download or read book Rwanda written by International Monetary Fund. African Dept. and published by International Monetary Fund. This book was released on 2023-12-18 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rwanda: Selected Issues
Download or read book Graph Colouring and the Probabilistic Method written by Michael Molloy and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, many major advances have been made in the field of graph coloring via the probabilistic method. This monograph, by two of the best on the topic, provides an accessible and unified treatment of these results, using tools such as the Lovasz Local Lemma and Talagrand's concentration inequality.
Download or read book The Geometry of Multiple Images written by Olivier Faugeras and published by MIT Press. This book was released on 2001 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book formalizes and analyzes the relations between multiple views of a scene from the perspective of various types of geometries. A key feature is that it considers Euclidean and affine geometries as special cases of projective geometry. Over the last forty years, researchers have made great strides in elucidating the laws of image formation, processing, and understanding by animals, humans, and machines. This book describes the state of knowledge in one subarea of vision, the geometric laws that relate different views of a scene. Geometry, one of the oldest branches of mathematics, is the natural language for describing three-dimensional shapes and spatial relations. Projective geometry, the geometry that best models image formation, provides a unified framework for thinking about many geometric problems are relevant to vision. The book formalizes and analyzes the relations between multiple views of a scene from the perspective of various types of geometries. A key feature is that it considers Euclidean and affine geometries as special cases of projective geometry. Images play a prominent role in computer communications. Producers and users of images, in particular three-dimensional images, require a framework for stating and solving problems. The book offers a number of conceptual tools and theoretical results useful for the design of machine vision algorithms. It also illustrates these tools and results with many examples of real applications.
Download or read book Nanodevices for Microwave and Millimeter Wave Applications written by Isabelle Huynen and published by MDPI. This book was released on 2020-06-16 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microwave and millimeter wave frequency range is nowadays widely exploited in a large variety of fields including (wireless) communications, security, radar, spectroscopy, but also astronomy and biomedical, to name a few. This Special Issue focuses on the interaction between the nanoscale dimensions and centimeter to millimeter wavelengths. This interaction has been proven to be efficient for the design and fabrication of devices showing enhanced performance. Novel contributions are welcome in the field of devices based on nanoscaled geometries and materials. Applications cover, but not are limited to, electronics, sensors, signal processing, imaging and metrology, all exploiting nanoscale/nanotechnology at microwave and millimeter waves. Contributions can take the form of short communications, regular or review papers.
Download or read book Mobile Wireless and Sensor Networks written by Amine Dahane and published by CRC Press. This book was released on 2019-07-01 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless networking covers a variety of topics involving many challenges. The main concern of clustering approaches for mobile wireless sensor networks (WSNs) is to prolong the battery life of the individual sensors and the network lifetime. For a successful clustering approach, the need of a powerful mechanism to safely elect a cluster head remains a challenging task in many research works that take into account the mobility of the network. In Mobile, Wireless and Sensor Networks: A Clustering Algorithm for Energy Efficiency and Safety, the authors use an approach based on computing of the weight of each node in the network as the proposed technique to deal with this problem. They present a virtual laboratory platform (VLP) of baptized mercury, allowing students and researchers to make practical work (PW) on different aspects of mobile wireless sensor networks. The authors’ choice of WSNs is motivated mainly by the use of real experiments needed in most college courses on WSNs. These usual experiments, however, require an expensive investment and many nodes in the classroom. The platform presented here aims at showing the feasibility, the flexibility, and the reduced cost using the authors’ approach. The authors demonstrate the performance of the proposed algorithms that contribute to the familiarization of the learners in the field of WSNs. The book will be a valuable resource for students in networking studies as well as for faculty and researchers in this area.
Download or read book Service Oriented Computing ICSOC 2016 Workshops written by Khalil Drira and published by Springer. This book was released on 2017-10-25 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the revised selected papers of the scientific satellite events that were held in conjunction with the 14th International Conference on Service-Oriented Computing, ICSOC 2016, held in Banff, AB, Canada, in October 2016. The ICSOC 2016 workshop track consisted of three workshops on a wide range of topics that fall into the general area of service computing: ASOCA 2016: The rst Workshop on Adaptive Service-oriented and Cloud Applications ISyCC 2016: The rst Workshop on IoT Systems Provisioning & Management in Cloud Computing BSCI 2016: The Second International Workshop on Big Data Services and Computational Intelligence
Download or read book Embedded Systems Architecture written by Tammy Noergaard and published by Newnes. This book was released on 2012-12-31 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Embedded Systems Architecture is a practical and technical guide to understanding the components that make up an embedded system's architecture. This book is perfect for those starting out as technical professionals such as engineers, programmers and designers of embedded systems; and also for students of computer science, computer engineering and electrical engineering. It gives a much-needed 'big picture' for recently graduated engineers grappling with understanding the design of real-world systems for the first time, and provides professionals with a systems-level picture of the key elements that can go into an embedded design, providing a firm foundation on which to build their skills. - Real-world approach to the fundamentals, as well as the design and architecture process, makes this book a popular reference for the daunted or the inexperienced: if in doubt, the answer is in here! - Fully updated with new coverage of FPGAs, testing, middleware and the latest programming techniques in C, plus complete source code and sample code, reference designs and tools online make this the complete package - Visit the companion web site at http://booksite.elsevier.com/9780123821966/ for source code, design examples, data sheets and more - A true introductory book, provides a comprehensive get up and running reference for those new to the field, and updating skills: assumes no prior knowledge beyond undergrad level electrical engineering - Addresses the needs of practicing engineers, enabling it to get to the point more directly, and cover more ground. Covers hardware, software and middleware in a single volume - Includes a library of design examples and design tools, plus a complete set of source code and embedded systems design tutorial materials from companion website
Download or read book Routledge Handbook of Food as a Commons written by Jose Luis Vivero-Pol and published by Routledge. This book was released on 2018-12-17 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook provides the first comprehensive review and synthesis of knowledge and new thinking on how food and food systems can be thought, interpreted and practiced around the old/new paradigms of commons and commoning. The overall aim is to investigate the multiple constraints that occur within and sustain the dominant food and nutrition regime and to explore how it can change when different elements of the current food systems are explored and re-imagined from a commons perspective. The book sparks the debate on food as a commons between and within disciplines, with particular attention to spaces of resistance (food sovereignty, de-growth, open knowledge, transition town, occupations, bottom-up social innovations) and organizational scales (local food, national policies, South–South collaborations, international governance and multi-national agreements). Overall, it shows the consequences of a shift to the alternative paradigm of food as a commons in terms of food, the planet and living beings. Chapters 1 and 24 of this book are freely available as downloadable Open Access PDFs at http://www.taylorfrancis.com under a Creative Commons Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND) 4.0 license.
Download or read book Food Sovereignty written by Annette Aurélie Desmarais and published by Fahamu Books. This book was released on 2011-03-31 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: With increasing hunger globally, people are resisting the industrialised food system and returning control to small farmers. This radical food sovereignty movement leads to increased production, safe food and agricultural practices that respect the earth.
Download or read book Beginning to End Hunger written by M. Jahi Chappell and published by Univ of California Press. This book was released on 2018-01-23 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning to End Hunger presents the story of Belo Horizonte, home to 2.5 million people and the site of one of the world’s most successful city-run food security programs. Since its Municipal Secretariat of Food and Nutritional Security was founded in 1993, Belo Horizonte has sharply reduced malnutrition, leading it to serve as an inspiration for Brazil’s renowned Zero Hunger programs. The secretariat’s work with local family farmers shows how food security, rural livelihoods, and healthy ecosystems can be supported together. While inevitably imperfect, Belo Horizonte offers a vision of a path away from food system dysfunction, unsustainability, and hunger. In this convincing case study, M. Jahi Chappell establishes the importance of holistic approaches to food security, suggests how to design successful policies to end hunger, and lays out strategies for enacting policy change. With these tools, we can take the next steps toward achieving similar reductions in hunger and food insecurity elsewhere in the developed and developing worlds.
