http://biblioteca.universia.net/vernivel.do?nivel=2202 Mostrando recursos 1 - 20 de 873 es http://biblioteca.universia.net/img/logotipo.jpg http://biblioteca.universia.net/ http://biblioteca.universia.net/ficha.do?id=5857 Edición digital a partir del texto original de la tesis doctoral. Torres Cabrera, Carlos 2004-10-26T22:00:00Z http://biblioteca.universia.net/ficha.do?id=41627549 A charge q moving in a reference laboratory system with constant velocity V in the X-axis produces in the Z-axis a longitudinal, phase free, vacuum magnetic field which is identified as the radiated B (3) field of Evans, Vigier and others. PACS numbers: 03.50.De, 03.50.Kk Typeset using REVT E X Department of Physics and Astronomy, York University, North York, Toronto, Canada y Instituto de Ciencia de Materiales, C.S.I.C., Madrid, Spain Several inferences have converged recently on the renewed... Escuela De F'isica,Electromagnetism Chubykalo,M. W. Evans,R. Smirnov-rueda http://biblioteca.universia.net/ficha.do?id=44887648 A numerical approach to including electromagnetism with general relativity is developed using GRAXI as a starting point. We develop a mathematical model describing electromagnetism coupled to a scalar field in an evolving axisymmetric spacetime. As there are numerous formulations of electromagnetism, we evalute different formulations in a limited flat space case. The full curved space system is then developed, using the flat case as a guide to implementing electromagnetism. This model is ... Skinfill, Craig Ernest 1975- http://biblioteca.universia.net/ficha.do?id=47824566 INTRODUCTION Mechatronics is an interdisciplinary body of ...knowledge that was developed, to a great extent, in mechanical engineering departments and other non-electrical departments, as well as in the more nonelectromagnetic university specialisations. It is considered as especially essential for the engineering environment of the next millennium [1]. In a paper by Rizzo et al., the definition adopted by the International Federation for the Theory of Machines and Mechanism (IFTMM... Turowski; Electromagnetism For Mechatronics http://biblioteca.universia.net/ficha.do?id=38295029 En este trabajo de tesis se desarrollan algoritmos de computadora que permiten analizar y diseñar antenas de microtira de forma arbitraria.Para ello, se emplea el método de los elementos finitos, el de los elementos de contorno y el de reciprocidad dual, combinados con el modelo de cavidad resonante para antenas de microtira. Estos algoritmos se utilizan para analizar una antena de geometría novedosa que consiste en un parche cuadrado con una ranura excéntrica en su interior. Los resultados d... Hurtado, Martín; Facultad de Ingenieria http://biblioteca.universia.net/ficha.do?id=34669142 Principles and applications of electromagnetism, starting from Maxwell's equations, with emphasis on phenomena important to nuclear engineering and radiation sciences. Solution methods for electrostatic and magnetostatic fields. Charged particle motion in those fields. Particle acceleration and focussing. Collisons with charged particles and atoms. Electromagnetic waves, wave emission by accelerated particles, Bremsstrahlung. Compton scattering. Photoionization. Elementary applications to ran... Hutchinson, I. H. (Ian H.); Sen, P. N. (Pabitra N.) http://biblioteca.universia.net/ficha.do?id=3916895 Se estudian algunas propiedades topologicas de los campos electromagnéticos, especialmente las relacionadas con el enlace de las líneas de campo. Este invariante topologico esta directamente asociado con una cantidad integral llamada helicidad, y definida para todo campo vectorial solenoidal. Gracias al estudio de estas propiedades, se desarrolla un modelo topológico del electromagnetismo clásico en el vacío. Este modelo es localmente equivalente a la teoría estándar, dada por las ecuaciones ... Trueba Santander, José Luis http://biblioteca.universia.net/ficha.do?id=6720662 Siguiendo el trabajo de Miranda [1] se calculó el campo magnético debido a corrientes que fluyen por alambres cuya forma puede ser descrita usando coordenadas polares r( q ) , tomando como punto de partida la Ley de Biot - Savart. Éste cálculo de campo magnético se llevó a cabo para alambres en forma de secciones cónicas, espirales y circuitos deformados armónicamente, tales como los cardiodides, los óvalos de Cassini, la nefroide de Freeth la hipopedia e Hipocloide , entre otras. Con éste tr... Valvuena, Camilo; Bolaños, Western; Segura, Martha http://biblioteca.universia.net/ficha.do?id=41842356 Introduction The teaching of electromagnetism has long been in question, for a variety of reasons, including the pressure of material in undergraduate courses. One major factor is what is often seen to be the lack of relevance of the traditional material to the needs of the modern engineer. Electrical machines are given much less time than in the past, and the broadening range of interests in communications likewise reduces the emphasis on electromagnetic fields. Yet electrical engineering mi... http://biblioteca.universia.net/ficha.do?id=41509059 We present a unified description of gravity and electromagnetism in the framework of a Z 2 noncommutative differential calculus. It can be considered as a "discrete version" of Kaluza-Klein theory, where the fifth continuous dimension is replaced by two discrete points. We derive an action which coincides with the dimensionally reduced one of the ordinary Kaluza-Klein theory. PACS. 04.20.Jb, 04.40. +c, 11.15. -q, 14.80.Hv On leave from Dipartimento di Matematica, Universit`a di Trieste, P.le ... Giovanni Landi,Nguyen Ai Viet http://biblioteca.universia.net/ficha.do?id=41548965 We present a unified description of gravity and electromagnetism in the framework of a Z 2 noncommutative differential calculus. It can be considered as a "discrete version" of Kaluza-Klein theory, where the fifth continuous dimension is replaced by two discrete points. We derive an action which coincides with the dimensionally reduced one of the ordinary Kaluza-Klein theory. PACS. 04.20.Jb, 04.40. +c, 11.15. -q, 14.80.Hv On leave from Dipartimento di Matematica, Universit`a di Trieste, P.le ... Giovanni Landi,Nguyen Ai Viet http://biblioteca.universia.net/ficha.do?id=41814999 We present a unified description of gravity and electromagnetism in the framework of a Z 2 noncommutative differential calculus. It can be considered as a "discrete version" of Kaluza-Klein theory, where the fifth continuous dimension is replaced by two discrete points. We derive an action which coincides with the dimensionally reduced one of the ordinary Kaluza-Klein theory. PACS. 04.20.Jb, 04.40. +c, 11.15. -q, 14.80.Hv On leave from Dipartimento di Matematica, Universit`a di Trieste, P.le ... Giovanni Landi,Nguyen Ai Viet http://biblioteca.universia.net/ficha.do?id=41795496 Modern experiment has shown that bulk matter exhibits quantum structure and that this structure is electromagnetic in character. Therefore, we treat the electromagnetic field as the source of gravitation. In this way, the theory of gravitation becomes consistent with the quantum theory of matter, which holds that electric charge (or `generalized charge') is the most fundamental attribute of matter. The following predictions of the theory may lie within reach of presentday methods in astronomy... Kenneth Dalton http://biblioteca.universia.net/ficha.do?id=41531759 this paper a study of the coupling between integral equations and finite element methods is presented for two problems of propagation in frequency domain. It is shown that these problems can be viewed as multidomain problems and treated by the mean of the Schur complement technique. The complement coming from the integral equation part is expressed with the integral operators of the scattering theory. This allows to predict the behaviour of the Schur method, either primal or dual, as far as i... http://biblioteca.universia.net/ficha.do?id=41479447 We discuss duality invariant interactions between electromagnetic fields and matter. The case of scalar fields is treated in some detail. Contribution to the memorial volume for D.V. Volkov. y This work was supported in part by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the U.S. Department of Energy under Contract DE-AC03-76SF00098 and in part by the National Science Foundation under grant PHY-95-14797. Disclaimer Thi... Mary K. Gaillard,Bruno Zumino http://biblioteca.universia.net/ficha.do?id=42138060 nce their inception, see, e.g., refs. [2] and refs. [4-6]. In the preface to the Dover edition of his book [7] A. Barut writes (1979): "Electrodynamics and the classical theory of fields remain very much alive and continue to be the source of inspiration for much of the modern research work in new physical theories." And in the preface to the first edition he speaks of the shortcomings of modern quantum field theory. These are well known. Furthermore, in spite of great expectations in the six... Valeri V. Dvoeglazov http://biblioteca.universia.net/ficha.do?id=562975 Working within the HPO (History Projection Operator) Consistent Histories formalism, we follow the work of Savvidou on (scalar) field theory and that of Savvidou and Anastopolous on (first-class) constrained systems to write a histories theory (both classical and quantum) of Electromagnetism. We focus particularly on the foliation-dependence of the histories phase space/Hilbert space and the action thereon of the two Poincare groups that arise in histories field theory. We quantise in the spi... Burch, Aidan http://biblioteca.universia.net/ficha.do?id=37755622 Mecanografiado Sánchez Pineda, Arturo Rodolfo; Spavieri, Gianfranco; Universidad de Los Andes. Departamento de Física, Tesis, 2008 http://biblioteca.universia.net/ficha.do?id=42377307 Sobhi-Najafabadi, Bijan; Gol, Ozdemir; Nafalski, Andrew http://biblioteca.universia.net/ficha.do?id=38558455 Estudi de dues possibilitats de disseny i implementació d'eines didàctiques amb les biblioteques Physlets i Java3D, per a ser utilitzades en una pàgina web d'electromagnetisme. Com a resultat d'aquest estudi s'han desenvolupat dues aplicacions basades en el principi físic d'inducció magnètica i les seves aplicacions. L'estudi de les biblioteques Physlets i Java3D serveix per comprovar les seves virtuts i limitacions, i a la vegada sospesar la capacitat matemàtica de la primera amb les possibi... Anglarill Gobern, Alex