Download or read book Problemas de ex menes de electrotecnia written by Faustino Alcalá Rueda and published by . This book was released on 2000 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book LEV written by and published by . This book was released on 1999 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Tale of Seven Scientists and a New Philosophy of Science written by Eric Scerri and published by Oxford University Press. This book was released on 2016-10-10 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his latest book, Eric Scerri presents a completely original account of the nature of scientific progress. It consists of a holistic and unified approach in which science is seen as a living and evolving single organism. Instead of scientific revolutions featuring exceptionally gifted individuals, Scerri argues that the "little people" contribute as much as the "heroes" of science. To do this he examines seven case studies of virtually unknown chemists and physicists in the early 20th century quest to discover the structure of the atom. They include the amateur scientist Anton van den Broek who pioneered the notion of atomic number as well as Edmund Stoner a then physics graduate student who provided the seed for Pauli's Exclusion Principle. Another case is the physicist John Nicholson who is virtually unknown and yet was the first to propose the notion of quantization of angular momentum that was soon put to good use by Niels Bohr. Instead of focusing on the logic and rationality of science, Scerri elevates the role of trial and error and multiple discovery and moves beyond the notion of scientific developments being right or wrong. While criticizing Thomas Kuhn's notion of scientific revolutions he agrees with Kuhn that science is not drawn towards an external truth but is rather driven from within. The book will enliven the long-standing debate on the nature of science, which has increasingly shied away from the big question of "what is science?"
Download or read book Electrical Feed Drives in Automation written by Hans Groß and published by Publicis. This book was released on 2001-10-18 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive introduction into the fundamental physics and basic technical principles of automatic control and drive technology. It pays particular attention to the design and dimensioning of electrical feed drives in automation technology. It helps engineers and technicians to put into practice the theoretical fundamentals of automatic control and drive technology for machines in the tool, glass and ceramics industries as well as in the woodworking and packaging industries. It also deals with the application of robots and other manipulators. The relationships between automatic control and mechanical engineering are described and explained, making the book also particularly useful for students of technical disciplines.
Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112044669122 and Others written by and published by . This book was released on 2013 with total page 2286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vitamin C written by M B Davies and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamin C is the first book to cover the history, chemistry, biochemistry, and medical importance of vitamin C and is the first to provide an in-depth, interdisciplinary study of this essential and fascinating compound. The book provides a comprehensive and systematic account of the vitamin C story, fully surveying the history of scurvy and how its cure led to the suggestion, discovery, and isolation of the vitamin, later named L-ascorbic acid. It describes in detail the vitamin's structure determination, synthesis and manufacture, and its oxidation products, derivatives and related compounds. Its key biochemical roles are fully categorized and explained, and the medical importance of the vitamin, including the recent use of so-called megadoses, is thoroughly discussed. Vitamin C will be of interest to a very wide readership and will provide useful background information and inspiration for students at various levels. It will also be relevant to the interested chemist or lay person, as well as those carrying out research in this area.
Download or read book Electrotecnia Problemas written by Xavier Alabern Morera and published by Universitat Politecnica de Catalunya. Iniciativa Digital Politecnica. This book was released on 2006-12-11 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Este libro es un conjunto de problemas resueltos del área de la ingeniería eléctrica, fruto de la larga experiencia acumulada por los autores en la docencia de la asignatura Electrotecnia en la ETSEIAT de la UPC. Trata de los circuitos eléctricos trifásicos, especialmente como circuitos de potencia, cuya metodología y comportamiento en régimen sinusoidal es imprescindible conocer para entender la generación, el transporte y la distribución de la energía eléctrica (capítulo 1). Presenta una colección de problemas de transformadores monofásicos, orientados a la determinación de los parámetros del circuito equivalente a través de las pruebas de vacío y cortocircuito, así como a la determinación del rendimiento (capítulo 2). Asimismo, se presenta el trabajo de transformadores en paralelo. También se estudia el comportamiento de los transformadores trifásicos en régimen sinusoidal alimentando diferentes tipos de cargas (capítulo 3). Se dedica un capítulo a la resolución de problemas de máquinas asíncronas, especialmente a los motores trifásicos, ampliamente utilizados en la industria, pues el estudio de sus circuitos equivalentes, previa determinación de sus parámetros, es fundamental para la determinación del funcionamiento del motor (capítulo 4). Asimismo, se estudia la potencia del motor en distintas situaciones, así como el rendimiento del mismo y el proceso de arranque. Se hace referencia a los distintos ejercicios de máquinas síncronas, donde la máquina se estudia como generador y motor (capítulo 5). Varios de los problemas que se presentan en esta obra fueron ejercicios de examen en las diferentes convocatorias. Finalmente, se incluye un compendio de exámenes realizados en los últimos años (capítulo 6).
Download or read book The Electric Motor and Its Applications written by Thomas Commerford Martin and published by . This book was released on 1889 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Problemas resueltos de fundamentos de ingenier a el ctrica written by ROBLES MUÑOZ, GUILLERMO and published by Ediciones Paraninfo, S.A.. This book was released on 2015-01-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: En este libro se incluyen 100 problemas resueltos de ingeniería eléctrica. Su objetivo es servir de preparación para los exámenes de evaluación continua y exámenes finales de asignaturas relacionadas con la resolución de circuitos eléctricos. Son problemas que han sido tradicionalmente propuestos en exámenes de Teoría de circuitos y de Fundamentos de ingeniería eléctrica. Está dividido en cuatro partes fundamentales: • Corriente continua • Corriente alterna • Sistemas trifásicos • Transitorios de primer orden La estructura de los ejercicios está pensada para que los estudiantes puedan medir su propio aprendizaje. En cada uno de ellos se puede conseguir el aprobado en un tiempo razonable y siempre se incluye una pregunta de mayor dificultad que permite distinguir quién ha desarrollado capacidades adicionales frente a los que simplemente han entendido los conceptos básicos. Asimismo, los ejercicios se ordenan por su grado dificultad y por los conceptos fundamentales que evalúan. Al comienzo de cada capítulo se encuentran cuestiones básicas que se deben poder resolver en un tiempo limitado de diez minutos y a continuación se encuentran problemas con varios apartados y con la puntuación que se asigna a cada uno de ellos.
Download or read book Nanoscience written by Claire Dupas and published by Springer Science & Business Media. This book was released on 2007-02-13 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practically-oriented overview of nanotechnologies and nanosciences is designed to provide students and researchers with essential information on both the tools of manufacture and specific features of the nanometric scale. Specific applications and techniques covered include nanolithography, STM and AFM, nanowires and supramolecules, molecular electronics, pptronics, and simulation. Each section devotes space to industrial applications and prospective developments. The book provides the only pedagogical review on major nanosciences topics at this level.
Download or read book Uses and Abuses of Psychology written by Dr. H. J. Eysenck and published by Pickle Partners Publishing. This book was released on 2016-08-09 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first book by German-born psychologist Hans Jürgen Eysenck’s is considered a classic amongst scholars and professionals of psychology. It describes the pitfalls of psychology, and the remedies that can be applied. A strong dependence on statistics and the experimental method is emphasized as essential to good psychology. The book is divided into four sections: Intelligence Testing, Vocational Psychology, Abnormal Behaviour, and Social Attitudes. Can an intelligence test administered to an eight year old predict adult performance? Is interviewing a good way of selecting the best applicant for a job? Is there such a thing as ‘normal’ behaviour? Can surveys such as the Gallup poll be of assistance to psychologists? Eysenck answers these and other questions. A book not to be missed by anyone interested in psychology.
Download or read book Nanoporous Materials Science And Engineering written by G Q Max Lu and published by World Scientific. This book was released on 2004-11-22 with total page 911 pages. Available in PDF, EPUB and Kindle. Book excerpt: Porous materials are of scientific and technological importance because of the presence of voids of controllable dimensions at the atomic, molecular, and nanometer scales, enabling them to discriminate and interact with molecules and clusters. Interestingly the big deal about this class of materials is about the “nothingness” within — the pore space. International Union of Pure and Applied Chemistry (IUPAC) classifies porous materials into three categories — micropores of less than 2 nm in diameter, mesopores between 2 and 50 nm, and macropores of greater than 50 nm. In this book, nanoporous materials are defined as those porous materials with pore diameters less than 100 nm.Over the last decade, there has been an ever increasing interest and research effort in the synthesis, characterization, functionalization, molecular modeling and design of nanoporous materials. The main challenges in research include the fundamental understanding of structure-property relations and tailor-design of nanostructures for specific properties and applications. Research efforts in this field have been driven by the rapid growing emerging applications such as biosensor, drug delivery, gas separation, energy storage and fuel cell technology, nanocatalysis and photonics. These applications offer exciting new opportunities for scientists to develop new strategies and techniques for the synthesis and applications of these materials.This book provides a series of systematic reviews of the recent developments in nanoporous materials. It covers the following topics: (1) synthesis, processing, characterization and property evaluation; (2) functionalization by physical and/or chemical treatments; (3) experimental and computational studies on fundamental properties, such as catalytic effects, transport and adsorption, molecular sieving and biosorption; (4) applications, including photonic devices, catalysis, environmental pollution control, biological molecules separation and isolation, sensors, membranes, hydrogen and energy storage, etc./a
Download or read book Electrotecnia 350 conceptos te ricos 800 problemas 11 edici n written by GARCIA TRASANCOS, JOSE and published by Ediciones Paraninfo, S.A.. This book was released on 2016-12-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pensando en los profesionales de Electricidad, así como en los alumnos de Bachillerato y de Formación Profesional de los distintos Ciclos Formativos de Electricidad y Electrónica y, especialmente, del módulo profesional de Electrotecnia del título de Técnico en Instalaciones Eléctricas y Automáticas, el autor de esta obra ofrece un manual de Electrotecnia que facilita la aplicación razonada de los conocimientos teóricos a la resolución de problemas. Cada capítulo consta de: • Un resumen teórico. • Problemas relacionados con el contenido: — Resueltos totalmente. — Propuestos al alumno, con las soluciones indicadas. • Problemas de recapitulación con sus resultados. Completa el libro una serie de apéndices que serán de gran utilidad para el alumno y el profesional sobre: • Disposiciones reglamentarias en baja tensión. • Designación de componentes electrónicos. • Símbolos gráficos. • Magnitudes y unidades. • Soluciones a los problemas de recapitulación. El contenido de esta edición se ha adaptado a: • El Reglamento Electrotécnico para Baja Tensión, actualizado por el Real Decreto 1053/2014. • Las intensidades admisibles en los conductores. Norma UNE-HD 60364-5-52: 2014. Con el fin de completar el libro, se plantea, mediante el acceso a la página web de la editorial (en www.paraninfo.es), una colección de pruebas objetivas sobre cada capítulo que ponen de manifiesto los aspectos más relevantes de la materia. Estos más de 500 test, con una respuesta correcta entre cuatro presentadas, están escogidos siguiendo el orden de las cuestiones planteadas en cada capítulo. Las respuestas incorrectas presentan errores muy significativos o errores típicos que cometen los alumnos.
Download or read book Electrotecnia Problemas Resueltos written by María Antonia Simón Rodríguez and published by Editorial Visión Libros. This book was released on 2011 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: TABLA DE CONTENIDO 1. CORRIENTE CONTINUA. FORMULARIO 1.1 LEYES DE KIRCHHOFF 1.1.1 1ª Ley: Corrientes 1.1.2 2ª Ley: Tensiones 1.2 CRITERIO DE SIGNOS 1.2.1 Elementos pasivos 1.2.2 Elementos activos 1.3 ELEMENTOS PASIVOS 1.3.1 Ecuaciones de elementos pasivos. Resumen 1.3.2 Asociación de elementos pasivos: 1.4 FUENTES. GENERADORES 1.4.1 Fuentes de tensión 1.4.2 Fuentes de corriente 1.4.3 Equivalencia entre fuente de tensión y fuente de corriente 1.4.4 Asociación de Fuentes 1.5 ANÁLISIS DE CIRCUITOS 1.5.1 Definiciones 1.5.2 Análisis por mallas 1.5.3 Análisis por nudos 1.5.4 Principio de superposición 1.5.5 Teoremas de Thévenin y Norton 2. PROBLEMAS RESUELTOS DE CORRIENTE CONTÍNUA 3. CORRIENTE ALTERNA. FORMULARIO 3.1 VALORES ASOCIADOS A LA ONDA SINUSOIDAL 3.1.1 Valores Instantáneos 3.1.2 Valores Máximos 3.1.3 Valores Eficaces 3.2 FASORES
Download or read book Treatise on Basic Philosophy written by Mario BUNGE and published by Springer. This book was released on 1989-07-31 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this Introduction is to sketch our approach to the study of value, morality and action, and to show the place we assign it in the system of human knowledge. 1. VALUE, MORALITY AND ACTION: FACT, THEORY, AND METATHEORY We take it that all animals evaluate some things and some processes, and that some of them learn the social behavior patterns we call 'moral principles', and even act according to them at least some of the time. An animal incapable of evaluating anything would be very short-lived; and a social animal that did not observe the accepted social behavior patterns would be punished. These are facts about values, morals and behavior patterns: they are incorporated into the bodies of animals or the structure of social groups. We distinguish then the facts of valuation, morality and action from the study of such facts. This study can be scientific, philosophic or both. wayan animal evaluates environmental A zoologist may investigate the or internal stimuli; a social psychologist may examine the way children learn, or fail to learn, certain values and norms when placed in certain environments. And a philosopher may study such descriptive or explan atory studies, with a view to evaluating valuations, moral norms, or behavior patterns; he may analyze the very concepts of value, morals and action, as well as their cognates; or he may criticize or reconstruct value beliefs, moral norms and action plans.
Download or read book Computational Continuum Mechanics written by Ahmed A. Shabana and published by Cambridge University Press. This book was released on 2011-12-12 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition presents the theory of continuum mechanics using computational methods. The text covers a broad range of topics including general problems of large rotation and large deformations and the development and limitations of finite element formulations in solving such problems. Dr Shabana introduces theories on motion kinematics, strain, forces and stresses and goes on to discuss linear and nonlinear constitutive equations, including viscoelastic and plastic constitutive models. General nonlinear continuum mechanics theory is used to develop small and large finite element formulations which correctly describe rigid body motion for use in engineering applications. This second edition features a new chapter that focuses on computational geometry and finite element analysis. This book is ideal for graduate and undergraduate students, professionals and researchers who are interested in continuum mechanics.
Download or read book Fundamentos f sicos de la ingener a 450 problemas resueltos de electromagnetismo electricidad y electr nica written by and published by . This book was released on with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
