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The identification of dark matter |
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Категория: Естественные науки » Физико-математические науки » Астрономия, космос |
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Автор: Minos Axenides, George Fanourakis, John Vergados
Издательство: World Scientific Publishing Co. Re. Ltd.
Год издания: 2007
isbn: 9812708529
Количество страниц: 704
Язык: english
Формат: PDF
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Supersymmetry (SUSY) offers the possibility of solving a number of theoretical problems of the Standard Model (SM). Thus the cancelations implied by the bose-fermi symmetry resolves the gauge hierarchy problem, allowing one to consider models at energies all the way up to the GUT or Planck scale. Further, using the SUSY SM particle spectrum with one pair of Higgs doublets. (pairs of Higgs doublets are needed on theoretical grounds to cancel anomalies and on phenomenological grounds to give rise to both u and d quark masses) the renormalization group equations (RGE) show that grand unification of the SM gauge coupling constants occurs at MG 21 10l6 GeV opening up the possibility of SUSY GUT models. |
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Thermodynamics of clouds |
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Категория: Естественные науки » Науки о Земле » Геофизика, метеорология, океанология |
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Автор: Louis Dufour
Издательство: Academic Press
Год издания: 1963
isbn: B0000CM56D
Количество страниц: 255
Язык: english
Формат: PDF
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Examining the treatment in meteorological works of thermodynamical problems involving the ideas of surface tension and of adsorption, one is struck by the fact that such questions are almost always dealt with in a fragmentary manner. The reader is referred to various works which he is recommended to study in order to understand the statements presented. The multiplicity of sources on which it is desirable to draw leads him to feel the need for a general treatment, and to wish for a single account uniting in a coherent manner the variousproblems of a similar nature involving the thermodynamics of capillarity. Only an account of this kind enables one to get to the root of problems, to perceive what physical hypotheses are required in the process, and to judge the consistency or inconsistency of various theories. |
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Structural Crystallography of Inorganic Oxysalts |
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Категория: Естественные науки » Химические науки |
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Автор: Sergey V.Krivovichev
Издательство: Oxford University Press
Год издания: 2009
isbn: 0199213208
Количество страниц: 323
Язык: english
Формат: PDF
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Inorganic oxysalts represent one of the most important and widespread groups of inorganic compounds. They constitute more than half of the mineral species known today, they form in the environment around us, their structure and properties determine a wide range of natural and technological processes. This book deals with the crystallography of inorganic oxysalts, i.e. with a description of the organization of atoms in their crystal structures. The world of inorganic oxysalts is so diverse that a systematic and adequate description of this diversity seems to be almost impossible. The imagination and knowledge of structural crystallographers are very often restricted to their own objects of study. They work out the structure solution (sometimes easy, sometimes diffi cult), produce crystallographic information fi les (CIF) and leave the structure aside. |
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Mathematical Aspects of Natural Dynamos |
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Категория: Естественные науки » Физико-математические науки » Астрономия, космос |
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Автор: Emmanuel Dormy, Andrew M.Soward
Издательство: CRC
Год издания: 2007
isbn: 1584889543
Количество страниц: 480
Язык: english
Формат: PDF
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The idea behind this book originated at a meeting held in Caramulo in Portugal in September 2003. The participants agreed that, though the field of natural dynamos (planetary, stellar and galactic) was rapidly evolving and attracting the interest of researchers in other branches of fluid mechanics, there was no comprehensive introductory book for researchers or graduate students entering this research area. The organisers therefore decided to take advantage of the broad-based knowledge of the invited lecturers at the conference to assemble a “multi-authored monograph”. Despite the obvious contradiction in this phrase, it does reflect the spirit in which this book was prepared. While each section of the book was written by specialists in different aspects of this subject, a concerted effort has been made to provide a unified presentation, which develops concepts in a coherent order and, where feasible, uses consistent notation. |
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Water Wave Mechanics for Engineers and Scientists |
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Категория: Естественные науки » Физико-математические науки » Механика |
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Автор: Robert G.Dean, Robert A.Dalrymple
Издательство: World Scientific Publishing Company
Год издания: 1990
isbn: 9810204205
Количество страниц: 353
Язык: english
Формат: PDF
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This book is intended as an introduction to classical water wave theory for the college senior or first year graduate student. The material is self-contained; almost all mathematical and engineering concepts are presented or derived in the text, thus making the book accessible to practicing engineers as well. |
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Thermodynamics of pharmaceutical systems: An Introduction to Theory and Applications, 2nd edition |
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Категория: Естественные науки » Физико-математические науки » Физика |
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Автор: Kenneth A.Connors, Sandro Mecozzi
Издательство: Wiley
Год издания: 2010
isbn: 0470425121
Количество страниц: 380
Язык: english
Формат: PDF
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The preparation of this second edition is motivated by the effectiveness of the first edition in classroom instruction, so the original structure and content have been retained. Our changes have been directed to the needs of students and other readers. Most obviously, we have moved the review of mathematics, formerly an appendix, to the front of the book (and, by labeling it Chapter 0, have conveniently preserved the structure and numbering throughout the following body of the text). We have added new textual material and figures in several places, most notably in Chapter 14, the chapter treating noncovalent chemical interactions; it is this chapter that most clearly distinguishes the content of this book from that of other thermodynamic texts. Two new appendices provide ancillary material that expands certain matters bordering the subject of classical thermodynamics. |
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The Linguistics Encyclopedia |
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Категория: Энциклопедии и словари |
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Автор: Kirsten Malmkjer, James M.Anderson
Издательство: Routledge
Год издания: 1991
isbn: 0203741102
Количество страниц: 824
Язык: english
Формат: PDF
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You are reading something, or listening to a lecture, or taking part in a conversation about language. You notice an unfamiliar term or realize that you don’t know enough about what is being said to understand. At this point, you should seek out this encyclopedia. |
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The Kolmogorov Legacy in Physics |
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Категория: Естественные науки » Физико-математические науки » Физика |
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Автор: R.Livi, A.Vulpiani
Издательство: Springer
Год издания: 2003
isbn: 3540203079
Количество страниц: 257
Язык: english
Формат: PDF
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The centenary of A.N.Kolmogorov, one of the greatest scientists of the 20th century, falls this year, 2003. He was born in Russia on the 25th of April 1903.1This is typically the occasion for apologetic portraits or hagiographic surveys about such an intense human and scientific biography. Various meetings and publications will be devoted to celebrate the work and the character of the great mathematician. So one could wonder why pubblishing a book which simply aims at popularizing his major achievements in fields out of pure mathematics? We are deeply convinced that Kolmogorov’s contributions are the cornerstone over which many modern research fields, from physics to computer science and biology, are based and still keep growing. His ideas have been transmitted also by his pupils to generations of scientists. The aim of this book is to extend such knowledge to a wider audience, including cultivated readers, students in scientific disciplines and active researchers. |
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Archean Crustal Evolution |
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Категория: Естественные науки » Науки о Земле » Геология, полезные ископаемые |
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Автор: K.C.Condie
Издательство: Elsevier
Год издания: 1994
isbn: 0444816216
Количество страниц: 543
Язык: english
Формат: PDF
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As geochronology has progressed in the last 20 years, the Archean has continued to attract interest. Advancements in our understanding of Archean crustal and mantle evolution can be traced through a series of meetings and published papers beginning in 1970 with the first International Archean Symposium in Perth in Western Australia (Glover, 1970). Among the exciting problems at that meeting were the relationship between low and high grade Archean terrains, the origin of Archean ultramafic rocks and, in particular, the recently discovered komatiites in South Africa, and the origin of various Archean mineral deposits. Only about 30% of the papers dealt with geochronology and Archean crustal evolution. |
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Practical Ethics, 2nd edition |
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Категория: Гуманитарные науки » Психология |
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Автор: Peter Singer
Издательство: Cambridge Uiversity Press
Год издания: 1993
isbn: 0521433630
Количество страниц: 412
Язык: english
Формат: PDF
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Practical ethics covers a wide area. We can find ethical ramifications in most of our choices, if we look hard enough. This book does not attempt to cover this whole area. The problems it deals with have been selected on two grounds: their relevance, and the extent to which philosophical reasoning can contribute to a discussion of them. I regard an ethical issue as relevant if it is one that any thinking person must face. Some of the issues discussed in this book confront us daily: what are our personal responsibilities towards the poor? Are we justified in treating animals as nothing more than machines producing flesh for us to eat? Should we be using paper that is not recycled? And why should we bother about acting in accordance with moral principles anyway? Other problems, like abortion and euthanasia, fortunately are not everyday decisions for most of us; but they are issues that can arise at some time in our lives. They are also issues of current concern about which any active participant in our society's decision-making process needs to reflect. The extent to which an issue can usefully be discussed philosophically depends on the kind of issue it is. Some issues are controversial largely because there are facts in dispute. For example, whether the release of new organisms created by the use of recombinant DNA ought to be permitted seems to hang largely on whether the organisms pose a serious risk to the environment. |
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