Quantum models

Xem 1-20 trên 37 kết quả Quantum models
  • (BQ) Part 1 book "Essential chemistry atoms, molecules, and compounds" has contents: Meet the atom, the quantum model, the electrons, the electrons. Invite you to consult

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  • This book was conceived as a result of many years research with students and postdocs in molecular simulation, and shaped over several courses on the subject given at the University of Groningen, the Eidgen¨ossische Technische Hochschule (ETH) in Z¨urich, the University of Cambridge, UK, the University of Rome (La Sapienza), and the University of North Carolina at Chapel Hill, NC, USA.

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  • .MOSFET MODELING FOR VLSI SIMULATION Theory and Practice .International Series on Advances in Solid State Electronics and Technology (ASSET) Founding Editor: Chih-Tang Sah Published: Modern Semiconductor Quantum Physics by Li Ming-Fu Topics in Growth and Device Processing of III-V Semiconductors by Stephen John Pearton, Cammy R. Abernathy & Fan Ren Ionizing Radiation Effects in MOS Oxides by Timothy R. Oldham Forthcoming.

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  • Modelling and simulation are disciplines of major importance for science and engineering. There is no science without models, and simulation has nowadays become a very useful tool, sometimes unavoidable, for development of both science and engineering. The main attractive feature of cellular automata is that, in spite of their conceptual simplicity which allows an easiness of implementation for computer simulation, as a detailed and complete mathematical analysis in principle, they are able to exhibit a wide variety of amazingly complex behaviour....

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  • The fundamental Physics of the 20th century was constructed basically from two main theories, general relativity and quantum theory. The later allowed the construction of the standard model which describes three of the four known fundamental interactions in Nature, the exception being the gravity interaction. Unfortunately, general relativity and quantum theory have not been unified into a single coherent description of gravity in the microscopic level yet. The gravity quantization problem exists for almost one century and the final answer is yet unknown.

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  • Within the framework of the Walecka model (QHD-I)[1] the renormalized effective Dirac equation and the kinetic equation for fermion are presented. In fact, the fermion propagator in the medium is dramatically different from that in the vacuum. The main feature is the treating of the fermion distribution in non equilibrium, which depends on the interaction rate involving temperature.

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  • Standard IR systems can process queries such as “web NOT internet”, enabling users who are interested in arachnids to avoid documents about computing. The documents retrieved for such a query should be irrelevant to the negated query term. Most systems implement this by reprocessing results after retrieval to remove documents containing the unwanted string of letters. This paper describes and evaluates a theoretically motivated method for removing unwanted meanings directly from the original query in vector models, with the same vector negation operator as used in quantum logic. ...

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  • (BQ) Part 1 book "A guide to molecular mechanics and quantum chemical calculations" has contents: Potential energy surfaces, quantum chemical models, molecular mechanics models, graphical models, equilibrium geometries, reaction energies, equilibrium conformations,...and other contents.

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  • (BQ) Part 1 book "A guide to molecular mechanics and quantum chemical calculations" has contents: Potential energy surfaces, theoretical models, quantum chemical models, molecular mechanics models, graphical models, equilibrium geometries, reaction energies, equilibrium conformations,...and other contents.

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  • (BQ) Part 2 book "A guide to molecular mechanics and quantum chemical calculations" has contents: Obtaining and interpreting atomic charges; kinetically controlled reactions, applications of graphical models, obtaining and using transition state geometries.

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  • The industrial discharge carries various types of contaminants to the river, lake and groundwater. The quality of freshwater is very important as it is highly consumed by human for drinking, bathing, irrigation and etc. The presence of contaminants from industrial contaminant within the water may reduce the yield of crops and the growth of plant and it will harmful to the aquatic living organism too.

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  • Since the discovery of carbon nanotubes about a decade and a half ago by Sumio Iijima, the scientific community involved in various aspects of research related to carbon nanotubes and related technologies has observed a steady progress of the science, as is typical for any new and novel material.

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  • After a few early isolated cases in the 1980s, since the mid-1990s hundreds of papers dealing with economics and finance have invaded the physics preprint server xxx.lanl.gov/cond-mat, initially devoted to condensed matter physics, and now covering subjects as different as computer science, biology or probability theory.

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  • This book is written for anybody who is curious about nature and motion. Have you ever asked: Why do people, animals, things, images and space move? The answer leads to many adventures; this volume presents those due to the discovery that there is a smallest change value in nature. This smallest change value, the quantumof action, leads towhat is called quantum physics. In the structure of modern physics, shown in Figure 1, quantum physics covers three points; this volume covers the introduction to the point in the lower right: the foundations of quantum theory.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Quantum transport simulations of graphene nanoribbon devices using Dirac equation calibrated with tight-binding pi-bond model

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Linear Rashba Model of a Hydrogenic Donor Impurity in GaAs/GaAlAs Quantum Wells

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  • Library of Congress Cataloging-in-Publication Data Dictionary of Material Science and High Energy Physics / edited by Dipak Basu. p. cm. ISBN 0-8493-2889-6 (alk. paper) 1. Particles (Nuclear Physics)—Dictionaries. 2. Quantum theory—Dictionaries. 3. Materials—Dictionaries. I. Basu, Dipak. II. Series. QC772 .D57 2001

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  • Kinetic experiments with a substrate series of phenylacetyl-arylamides reveal that at least one polar group in the amine moiety is required for the proper orientation of the substrate in the large nucleophile-binding subsite of penicillin acylase ofEscherichia coli. Quantum mechanical molecular model-ling of enzyme–substrate interactions in the enzyme active site shows that in the case of substrates lacking local sym-metry, the productive binding implies two nonsymmetrical arrangements with respect to the two positively charged guanidinium residues of ArgA145 and ArgB263....

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  • A good model is provided by astrobiology, which studies the origin, evolution and distribution of life in the universe. Physicists, chemists, astronomers, earth scientists and biologists have been able to come to- gether to tackle such problems as how life began; whether life could exist on Mars, Europa or Titan; and what range of extreme environments micro-organisms may tolerate. So far, there has been little dialogue between cancer biologists and astrobiologists, but this is set to change.

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  • To have a quantum-mechanical treatment we model a crystalline solid as matter in which the atoms have long-range order, that is a recurring (periodical) pattern of atomic positions that extends over many atoms. We will describe the wavefunctions and energy levels of electrons in such periodical atomic structures.  We want to answer the question: Why do some solids conduct curr We want to answer the question: Why do some solids conduct current ent and others don and others don’ ’t? t?...

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