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Author: Germán Alberto Celis del Valle
Publisher:
ISBN:
Category :
Languages : es
Pages : 0
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Author: Germán Alberto Celis del Valle
Publisher:
ISBN:
Category :
Languages : es
Pages : 0
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Author: José Ignacio Barradas Castillo
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Durante los últimos treinta años la comunidad científica ha realizado una exhaustiva investigación en el campo de detección de fugas en tuberías. Esto, porque las fugas traen consigo cuantiosas pérdidas debido a: suspensión del transporte del producto, el costo de reparación y pérdida del producto. En caso de que el producto transportado sea flamable, explosivo o peligroso, una fuga por mínima que sea, trae grandes riesgos al ambiente, a las personas cerca de la fuga e incluso al mismo sistema de transporte. Eventos o catástrofes de este estilo inducen un alto costo social, político y financiero, los cuales son proporcionales al tamaño y duración de la fuga. La mayoría de los estudios existentes a la fecha, se enfocan en la detección de fugas en segmentos de la tubería bajo un régimen de estado estable y haciendo uso de métodos analíticos. Sin embargo, a la fecha no existe un método que pueda trabajar en cualquier punto de operación, en cualquier tubería con cualquier tipo de transitorios. Esto es debido a que cada tubería es diferente a las demás y a que las condiciones en las que operan y se encuentran, difieren una de otra. Hay ocasiones en que los ductos están bajo tierra o en el mar, lo que dificulta su inspección, además de que no necesariamente operan en estado estacionario, por lo que los métodos antes mencionados no siempre brindan resultados satisfactorios. En la presente tesis, se presenta una propuesta de un método de detección de fugas en tuberías haciendo uso de técnicas utilizadas en inteligencia artificial. La ventaja de este enfoque es que a diferencia de los métodos analíticos, no se necesita conocer el modelo matemático que describa la dinámica de transporte del fluido en la tubería. Lo que hace que sea aplicable a cualquier tipo de fluido o tubería ya que sólo requiere de dos mediciones de flujos. El método propuesto hace uso de redes neuronales para detectar la presencia y la ubicación de una o más fugas a lo largo de la tubería. La importancia de esta tesis radica en la necesidad de tener un algoritmo que sea capaz de trabajar en condiciones donde el modelo es incierto y existe un número reducido de variables a monitorear para detectar y aislar la fuga. La estructura de la presenta investigación lleva al lector a través de los conceptos básicos de la teoría de detección y diagnóstico de fugas, para posteriormente analizar lo existente en el campo de detección de fugas haciendo uso de la teoría de control.
Author: Greg Wilson
Publisher: CRC Press
ISBN: 1000728153
Category : Computers
Languages : en
Pages : 250
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Book Description
Hundreds of grassroots groups have sprung up around the world to teach programming, web design, robotics, and other skills outside traditional classrooms. These groups exist so that people don't have to learn these things on their own, but ironically, their founders and instructors are often teaching themselves how to teach. There's a better way. This book presents evidence-based practices that will help you create and deliver lessons that work and build a teaching community around them. Topics include the differences between different kinds of learners, diagnosing and correcting misunderstandings, teaching as a performance art, what motivates and demotivates adult learners, how to be a good ally, fostering a healthy community, getting the word out, and building alliances with like-minded groups. The book includes over a hundred exercises that can be done individually or in groups, over 350 references, and a glossary to help you navigate educational jargon.
Author: Pedro Arezes
Publisher: CRC Press
ISBN: 1138000477
Category : Technology & Engineering
Languages : en
Pages : 648
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Book Description
Occupational Safety and Hygiene presents selected papers from the International Symposium on Occupational Safety and Hygiene – SHO2013 (Guimarães, Portugal, 14-15 February 2013), which was organized by the Portuguese Society for Occupational Safety and Hygiene (SPOSHO). The contributions from 15 different countries focus on: - Occupational safety - Risk assessment - Safety management - Ergonomics - Management systems - Environmental ergonomics - Physical environments - Construction safety - Human factors The papers included in the book are mainly based on research carried out at universities and other research institutions, but they are also based on practical studies developed by Occupational Health & Safety (OHS) practitioners within their companies. As a result, this book will be useful to get acquainted with the state-of-the-art of the research within the aforementioned domains, as well as with some practical tools and approaches that are currently used by OHS professionals worldwide.
Author: Joshua Knowles
Publisher: Springer Science & Business Media
ISBN: 3540729631
Category : Computers
Languages : en
Pages : 413
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This text examines how multiobjective evolutionary algorithms and related techniques can be used to solve problems, particularly in the disciplines of science and engineering. Contributions by leading researchers show how the concept of multiobjective optimization can be used to reformulate and resolve problems in areas such as constrained optimization, co-evolution, classification, inverse modeling, and design.
Author: Norman N Potter
Publisher: Springer
ISBN: 9789401572637
Category :
Languages : en
Pages : 752
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Author: John Moubray
Publisher: Industrial Press Inc.
ISBN: 9780831131463
Category : Business & Economics
Languages : en
Pages : 452
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Completely reorganised and comprehensively rewritten for its second edition, this guide to reliability-centred maintenance develops techniques which are practised by over 250 affiliated organisations worldwide.
Author: E. Valsami-Jones
Publisher: IWA Publishing
ISBN: 1843390019
Category : Science
Languages : en
Pages : 681
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Book Description
Phosphorus in Environmental Technology: Principles and Applications, provides a definitive and detailed presentation of state-of-the-art knowledge on the environmental behaviour of phosphorus and its applications to the treatment of waters and soils. Special attention is given to phosphorus removal for recovery technologies, a concept that has emerged over the past 5-6 years. The book features an all-encompassing approach: the fundamental science of phosphorus (chemistry, geochemistry, mineralogy, biology), key aspects of its environmental behaviour and mobility, industrial applications (treatment, removal, recovery) and the principles behind such applications, novel biotechnologies and, importantly, it also addresses socio-economic issues which often influence implementation and the ultimate success of any new technology. A detailed subject index helps the reader to find their way through the different scientific and technological aspects covered, making it an invaluable reference work for students, professionals and consultants dealing with phosphorus-related environmental technologies. State-of-the-art knowledge on the behaviour of phosphorus and its applications to environmental science and technology. Covers all aspects of phosphorus in the environment, engineered and biological systems; an interdisciplinary text.
Author: Ali M. S. Zalzala
Publisher: IET
ISBN: 9780852969021
Category : Computers
Languages : en
Pages : 286
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The contributions presented in this book are extended version of commissioned papers from some of the highest quality contributions to the conference. Chosen for their experience in the field, the authors are drawn from academia and industry worldwide. The chapters cover the main fields of work as well as presenting tutorial material in this important subject, which is currently receiving considerable attention from engineers.
Author: United States. Bureau of Labor Statistics
Publisher:
ISBN:
Category : Labor supply
Languages : en
Pages : 126
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