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Author: CARLOS VALDIVIA MIRANDA
Publisher: Ediciones Paraninfo, S.A
ISBN: 9788413676371
Category : Science
Languages : es
Pages :
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Book Description
Author: CARLOS VALDIVIA MIRANDA
Publisher: Ediciones Paraninfo, S.A
ISBN: 9788413676371
Category : Science
Languages : es
Pages :
Get Book Here
Book Description
Author: VALDIVIA MIRANDA, CARLOS
Publisher: Ediciones Paraninfo, S.A.
ISBN: 842830744X
Category : Education
Languages : es
Pages : 410
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Book Description
El objetivo principal de esta obra es presentar al lector —profesores, alumnos y profesionales de la Ingeniería— un enfoque completo del análisis y el diseño de los sistemas de control, de tiempo tanto continuo como discreto. Los conceptos son expuestos con diversos ejemplos y supuestos prácticos. Con esta base, el libro elude extenderse en la teoría para centrarse principalmente en el planteamiento y la solución de problemas. En el libro se abarca desde el modelado de sistemas -físicos hasta el diseño, el ajuste y la implementación de reguladores. Cada paso es, además, complementado con el manejo de la principal herramienta software de simulación y de asistencia en el diseño de sistemas continuos y discretos de control (Matlab® /Simulink ®). Por este motivo, se presenta como un perfecto manual de referencia tanto para profesores y alumnos como para profesionales de la Ingeniería dedicados al estudio de los sistemas de control continuos y discretos.
Author: Steven Shaviro
Publisher: MIT Press
ISBN: 0262517973
Category : Philosophy
Languages : en
Pages : 191
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Book Description
A Deleuzian reading of Whitehead and a Whiteheadian reading of Deleuze open the possibility of a critical aesthetics of contemporary culture. In Without Criteria, Steven Shaviro proposes and explores a philosophical fantasy: imagine a world in which Alfred North Whitehead takes the place of Martin Heidegger. What if Whitehead, instead of Heidegger, had set the agenda for postmodern thought? Heidegger asks, “Why is there something, rather than nothing?” Whitehead asks, “How is it that there is always something new?” In a world where everything from popular music to DNA is being sampled and recombined, argues Shaviro, Whitehead's question is the truly urgent one. Without Criteria is Shaviro's experiment in rethinking postmodern theory, especially the theory of aesthetics, from a point of view that hearkens back to Whitehead rather than Heidegger. In working through the ideas of Whitehead and Deleuze, Shaviro also appeals to Kant, arguing that certain aspects of Kant's thought pave the way for the philosophical “constructivism” embraced by both Whitehead and Deleuze. Kant, Whitehead, and Deleuze are not commonly grouped together, but the juxtaposition of them in Without Criteria helps to shed light on a variety of issues that are of concern to contemporary art and media practices.
Author: Óscar Reinoso García
Publisher: Universidad Miguel Hernández
ISBN: 8416024480
Category : Technology & Engineering
Languages : es
Pages : 127
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Book Description
Resulta imprescindible para acometer cualquier sistema de control conocer el comportamiento de los sistemas, así como su variación ante diferentes señales de entrada. En este ámbito, el campo de control automático es de especial importancia en el mundo industrial, donde es imprescindible conocer y comprender el comportamiento de los sistemas clásicos de control para conseguir que los sistemas físicos se comporten de acuerdo a unos requerimientos previamente especificados. Los sistemas de control de esta forma constituyen una materia fundamental en muchas titulaciones de ingeniería a través de la cual fundamentalmente los alumnos pueden adquirir competencias de diseño de reguladores (tanto de tiempo continuo como discreto) partiendo del uso de diferentes herramientas, así como de diferentes posibilidades de diseño. A lo largo de un curso clásico de sistemas de control se proporcionan los contenidos teóricos que permiten justificar las bases en las que se estructuran los diferentes contenidos. De igual forma, el estudiante puede realizar un conjunto de problemas, más o menos alejados de la realidad, que le posibilita comprender y afianzar estos conocimientos. Pero resulta fundamental, realizar experimentos y análisis prácticos que permitan contrastar, afianzar y comprender, bien en sistemas físicos reales o con maquetas simuladas, las posibilidades que ofrece el diseño de reguladores para el control de sistemas físicos. De esta forma, en este libro se recogen un conjunto de experimentos y análisis prácticos que posibilitan comprender desde un punto de vista práctico los diferentes comportamientos que pueden presentar los sistemas físicos al diseñar diferentes esquemas y elementos de control. El texto se ha dividido en dos partes bien diferenciadas. En la primera se recogen las características principales de los sistemas físicos que se utilizarán a lo largo de los diferentes ensayos. Posteriormente en una segunda parte se recogen un total de diez ensayos diferentes que permiten al alumno realizar experimentos con un grado de dificultad mayor a medida que avanza en la realización de las mismas. La primera de las sesiones permite identificar un sistema físico que se utilizará a lo largo de diferentes sesiones (motor de corriente continua) mediante métodos frecuenciales. La segunda de estas sesiones permite realizar este proceso de identificación mediante el uso de una tarjeta de adquisición de datos. De esta forma se pueden contrastar ambos resultados. En una tercera práctica se revisa la potencialidad que ofrece una Toolbox presente en el software Matlab (rltool) como herramienta para entender el diferente comportamiento de los sistemas de control en función de la posición de los polos del sistema en bucle cerrado. A continuación, la cuarta sesión ofrece la posibilidad de diseñar un regulador PID mediante la técnica del Lugar de las Raíces y simular el comportamiento de este regulador. Una sesión posterior se ofrece como alternativa al diseño de reguladores, el diseño de estos mediante el método de Ziegler-Nichols. La siguiente práctica culmina este bloque de diseño de reguladores mediante la sintonización del PID haciendo uso de los métodos frecuenciales de diseño. De esta manera, con estos tres experimentos prácticos, el estudiante podrá entender y asimilar las diferentes posibilidades para la sintonización de reguladores en sistemas continuos. A continuación, se presenta un ensayo donde se experimenta con diferentes arquitecturas de control discreto en función de la diferente posición de las acciones de control dentro del lazo de control. En la sesión octava se realiza el control del sistema físico previamente analizado e identificado (servomotor de corriente continua) mediante un control discreto con diferentes variantes. Por último, las dos últimas prácticas se encuentran enfocadas al diseño de controladores mediante el método de cancelación, en concreto mediante el método de controladores de Tiempo Mínimo y Tiempo Finito. Creemos que con este conjunto de prácticas se recopilan las principales actividades que el estudiante puede manejar en un curso clásico de sistemas de control.
Author: Daniel M. Brooks
Publisher: IUCN
ISBN: 9782831704227
Category : Nature
Languages : en
Pages : 176
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Book Description
Descended from a long and ancient lineage, tapirs are important tropical forest seed dispersers. However, today, all species of tapirs are threatened to various degrees by habitat destruction and hunting. This action plan was written with wildlife biologists, ecologists, administrators, educators and local conservation officials in mind and is aimed at those countries with tapir populations. It provides a brief natural history of each species and its objective is to aid in their conservation by catalyzing conservation action. In addition, it is hoped that the contents of the plan will stimulate further research into this fascinating group of animals.
Author: Damir Brdjanovic
Publisher: IWA Publishing
ISBN: 1780404638
Category : Science
Languages : en
Pages : 472
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Book Description
In 1982 the International Association on Water Pollution Research and Control (IAWPRC), as it was then called, established a Task Group on Mathematical Modelling for Design and Operation of Activated Sludge Processes. The aim of the Task Group was to create a common platform that could be used for the future development of models for COD and N removal with a minimum of complexity. As the collaborative result of the work of several modelling groups, the Activated Sludge Model No. 1 (ASM1) was published in 1987, exactly 25 years ago. The ASM1 can be considered as the reference model, since this model triggered the general acceptance of wastewater treatment modelling, first in the research community and later on also in practice. ASM1 has become a reference for many scientific and practical projects, and has been implemented (in some cases with modifications) in most of the commercial software available for modelling and simulation of plants for N removal. The models have grown more complex over the years, from ASM1, including N removal processes, to ASM2 (and its variations) including P removal processes, and ASM3 that corrects the deficiencies of ASM1 and is based on a metabolic approach to modelling. So far, ASM1 is the most widely applied. Applications of Activated Sludge Models has been prepared in celebration of 25 years of ASM1 and in tribute to the activated sludge modelling pioneer, the late Professor G.v.R. Marrais. It consists of a dozen of practical applications for ASM models to model development, plant optimization, extension, upgrade, retrofit and troubleshooting, carried out by the members of the Delft modelling group over the last two decades.
Author: Kenneth Train
Publisher: MIT Press
ISBN: 9780262200554
Category : Business & Economics
Languages : en
Pages : 282
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Book Description
This book addresses two significant research areas in an interdependent fashion. It is first of all a comprehensive but concise text that covers the recently developed and widely applicable methods of qualitative choice analysis, illustrating the general theory through simulation models of automobile demand and use. It is also a detailed study of automobile demand and use, presenting forecasts based on these powerful new techniques. The book develops the general principles that underlie qualitative choice models that are now being applied in numerous fields in addition to transportation, such as housing, labor, energy, communications, and criminology. The general form, derivation, and estimation of qualitative choice models are explained, and the major models - logit, probit, and GEV - are discussed in detail. And continuous/discrete models are introduced. In these, qualitative choice methods and standard regression techniques are combined to analyze situations that neither alone can accurately forecast. Summarizing previous research on auto demand, the book shows how qualitative choice methods can be used by applying them to specific auto-related decisions as the aggregate of individuals' choices. The simulation model that is constructed is a significant improvement over older models, and should prove more useful to agencies and organizations requiring accurate forecasting of auto demand and use for planning and policy development. The book concludes with an actual case study based on a model designed for the investigations of the California Energy Commission. Kenneth Train is Visiting Associate Professor in Economics at the University of California, Berkeley, and Director of Economic Research at Cambridge Systematics, Inc., also in Berkeley. Qualitative Choice Analysisis included in The MIT Press Transportation Studies Series, edited by Marvin L. Manheim.
Author: Mogens Henze
Publisher: IWA Publishing (International Water Assoc)
ISBN:
Category : Science
Languages : en
Pages : 170
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Book Description
For information on the online course in Biological Wastewater Treatment from UNESCO-IHE, visit: http://www.iwapublishing.co.uk/books/biological-wastewater-treatment-online-course-principles-modeling-and-design Over the past twenty years, the knowledge and understanding of wastewater treatment have advanced extensively and moved away from empirically-based approaches to a first principles approach embracing chemistry, microbiology, physical and bioprocess engineering, and mathematics. Many of these advances have matured to the degree that they have been codified into mathematical models for simulation with computers. For a new generation of young scientists and engineers entering the wastewater treatment profession, the quantity, complexity and diversity of these new developments can be overwhelming, particularly in developing countries where access is not readily available to advanced level tertiary education courses in wastewater treatment. Biological Wastewater Treatment addresses this deficiency. It assembles and integrates the postgraduate course material of a dozen or so professors from research groups around the world that have made significant contributions to the advances in wastewater treatment. The book forms part of an internet-based curriculum in biological wastewater treatment which also includes: Summarized lecture handouts of the topics covered in book Filmed lectures by the author professors Tutorial exercises for students self-learning Upon completion of this curriculum the modern approach of modelling and simulation to wastewater treatment plant design and operation, be it activated sludge, biological nitrogen and phosphorus removal, secondary settling tanks or biofilm systems, can be embraced with deeper insight, advanced knowledge and greater confidence.
Author: Kenneth Train
Publisher: Mit Press
ISBN: 9780262200844
Category : Business & Economics
Languages : en
Pages : 338
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Book Description
Optimal Regulation addresses the central issue of regulatory economics - how toregulate firms in a way that induces them to produce and price "optimally." It synthesizes the majorfindings of an extensive theoretical literature on what constitutes optimality in various situationsand which regulatory mechanisms can be used to achieve it. It is the first text to provide aunified, modern, and nontechnical treatment of the field.The book includes models for regulatingoptimal output, tariffs, and surplus subsidy schemes, and presents all of the material graphically,with clear explanations of often highly technical topics.Kenneth E. Train is Associate AdjunctProfessor in the Department of Economics and Graduate School of Public Policy at the University ofCalifornia, Berkeley. He is also Principal of the firm Cambridge Systematics.Topics include: Thecost structure of natural monopoly (economies of scale and scope). Characterization of firstandsecond-best optimality. Surplus subsidy schemes for attaining first-best optimality. Ramsey pricesand the Vogelsang-Finsinger mechanism for attaining them. Time-ofuse (TOU) prices and Riordan'smechanisms for attaining the optimal TOU prices' Multipart and self-selecting tariffs, and Sibley'smethod for using self-selecting tariffs to achieve optimality. The Averch-Johnson model of howrate-of-return regulation induces inefficiencies. Analysis of regulation based on the firm's returnon Output, costs, or sales. Price-cap regulation. Regulatory treatment of uncertainty and its impacton the firm's behavior. Methods of attaining optimality without direct regulation (contestability,auctioning the monopoly franchise.)
Author: Anna-Teresa Tymieniecka
Publisher: Springer Science & Business Media
ISBN: 9400747942
Category : Philosophy
Languages : en
Pages : 397
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Book Description
The classic conception of human transcendental consciousness assumes its self-supporting existential status within the horizon of life-world, nature and earth. Yet this assumed absoluteness does not entail the nature of its powers, neither their constitutive force. This latter call for an existential source reaching beyond the generative life-world network. Transcendental consciousness, having lost its absolute status (its point of reference) it is the role of the logos to lay down the harmonious positioning in the cosmic sphere of the all, establishing an original foundation of phenomenology in the primogenital ontopoiesis of life.
