für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Geometrical and topological considerations are increasingly important in fundamental physics. This book shows how a certain explicit realization of toroidal topology can expedite and simplify the modeling of the elementary particles of physics, in particular how the taxonomy, interactions and particle attributes of the Standard Model can be realized but without its quarks, gluons or color . The particles of the model featured herein exist as general-relativistically-compatible solitons, in and of an otherwise undistorted space-time continuum. The book emphasizes their geometry and topology and the symmetries of their taxonomical combination. What is achieved is, in effect, an amalgamation of two of the major responses to the particle explosion that bedeviled mid-century physicists, one the non-reductionist Sakata model and the other the Gell-Mann/Zwieg introduction of quarks. Readers with some familiarity with the Standard Model should find this book interesting and provocative. ····· 1036119675
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A rigorous theoretical investigation has been made on linear and nonlinear propagation of electrostatic perturbation modes in a dusty electron-positron-ion plasma. The linear dispersion properties of such perturbation modes in such a plasma system has been first examined by the normal mode analysis. The possibility for the formation of nonlinear coherent structures (viz. solitary waves and double layers) associated with such waves in the plasma system (under consideration) has been theoretically investigated. The reductive perturbation method, which is valid for small amplitude limit, and pseudopotential approach, which is valid for arbitrary amplitude waves, has been applied to study the basic features of solitary waves (SWs) and double layers (DLs). The co-existence of positive and negative SWs, and existence of either positive or negative DLs have been observed for certain range of different plasma parameters. The basic features and the underlying physics of the non-linear waves (SWs and DLs), which are relevant to some astrophysical compact objects (e.g. white dwarfs, neutron stars, etc.), have been pin-pointed and critically discussed. ····· 1036119600
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The basic aim of the book is to report on the investigations of the effect of uniform electric field on the resonant tunneling phenomena and its time-dependent aspects in semiconductor multibarrier systems. The introductory chapter of the book sets out the basic principles related to tunneling related issues. In other chapters the authors deal with, in detail, the effect of electrical bias on band structure, resonant tunneling states and resonant tunneling lifetime in case of such low-dimensional systems. Covering the key theoretical and experimental aspects of this active area of research, the book will be of great value to the students of quantum transport physics and device engineering, as well as to researchers in both these fields. ····· 1036119568
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The results of the study of donor negative U centers in lead chalcogenides by Mössbauer emission spectroscopy are discussed. The published data regarding the identification of amphoteric negative U centers in glassy binary arsenic and germanium chalcogenides using Mössbauer emission spectroscopy, and in multicomponent chalcogenide glasses using Mössbauer absorption spectroscopy are considered. Published data concerning the identification of two-atom negative U centers in lattices of the metal-oxides of copper by Mössbauer emission spectroscopy are analyzed. The principal possibility of using Mössbauer negative U centers as a tool for studying the Bose Einstein condensation of electron pairs during the superconducting phase transition in high-temperature and classic superconductors is considered. ····· 1036119404
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Recent developments in semiconductor research and technology over the last few years have led to a renewed interest in the growth of single crystals of different solids with improved physical perfection and high purity. Any deviation from the perfect atomic periodicity in a crystal is known as a lattice defect.Lattice defects greatly affect the properties like color ability, diffusion, electrical resistance, the strength of the crystals etc.As a result, the study of crystal defects has assumed a central position in material science. This book provides an understanding of the theoretical and experimental aspects of the growth of single KBr crystal of potassium bromide with solution growth technique.It describes the thermoluminescence properties of KBr crystal and method of calculating the activation energy with the help of glow curves. ····· 1036119183
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A rigorous theoretical investigation has been made on linear and nonlinear structures (solitons, shocks, double layers, etc.) associated with dust-acoustic (DA) waves in four-component dusty plasma (composed of inertialess electron and ion fluids, and negatively as well as positively charged inertial dust fluids). The results may be useful in understanding the localized electrostatic disturbances in both space environments and laboratory devices. ····· 1036118990
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray From the perspective of black hole thermodynamics, this exposition provides the physical and mathematical account of thermodynamic geometries, higher derivative corrections, N= 1, 2, 4 configurations, Calabi-Yau compactification, string theory and M-theory. We illustrate the local and global statistical stabilities and phase transitions for an ensemble of Kerr black holes in general relativity, and thereby consider a class of macroscopic attractors, including (non)BPS black holes, (non)extremal black holes, and (non)supersymmetric black holes in supergravity theories. For a given black brane ensemble, we shed light on the limiting thermodynamic fluctuations and higher order effects by considering Sen entropy function method as a generalized attractor and its quantum counterparts via the AdS/CFT correspondence. This research gives string (field) theory and M-theory fundamentals for the state-space, chemical, Legendre transformed and short distance (quasi) geometries. From the perspective of black hole thermodynamics, (un)attractors and an ensemble of microscopic vacua, we discuss the (in)stability of black brane configurations in conformal field theory, string theory and M-theory. ····· 1036118948
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Over the last 50 years, diagnostic imaging and image quality has grown from a state of infancy to a high level of maturity. Detective quantum efficiency (DQE) is one of the most important measures in the assessment of image quality and detector performance. This book has focus on computation of DQE of radiographic screen-films. In this book key parameters in DQE computation are well discussed, including modulation transfer function (MTF), Noise Power Spectra (NPS), gamma of film and photon fluence, which are discussed mostly in scattered and non-specific books. This work contains computation of some screen-films namely Lanex Regular/T-Mat G/RA and Lanex Regular/T-Mat L/RA using experimental data of our original work. At the end, there are some conclusions to evaluate two mentioned screen-films in terms of image quality and performance using computed detective quantum efficiency for each screen-film. Moreover, this book has good enough discussions for DQE computation and interesting topics in medical imaging area. ····· 1036118926
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The recent studies have shown that worldwide there is an increasing trend of extreme precipitation events. A significant increasing trend is observed in the frequency and the magnitude of extreme rain events over Central India during the monsoon season, even though there is no evidence of significant trend in the mean annual rainfall. Even though major part of Gujarat state is under arid region, number of stations experience intense rainfall during south west monsoon. Intense rainfall of more than 20 cm per day is not uncommon over Gujarat region. In this paper, an attempt has been made to identify weather systems responsible for heavy and intense rainfall over Gujarat Region during the last decade.Synoptic systems responsible for heavy rainfall incidences such as monsoon depressions, tropical cyclones, offshore trough and MTC for the period 2000 to 2009 have been identified. Characteristics of system responsible such as spatial coverage, vertical extension, movement etc have been investigated using 3 hourly Brightness Temperature, OLR and Cloud Top Temperature from INSAT data. This book may be helpful to research students engaged in filed of Earth and Atmospheric Sciences. ····· 1036118858
für 35.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray V sluchae nelinejnogo differencial`nogo uravneniya v chastnyh proizvodnyh, ono svoditsya k nelinejnoj sisteme obyknovennyh differencial`nyh uravnenij. Pri jetom pri dejstvitel`nyh znacheniyah polozheniyah ravnovesiya reshenie svoditsya k malym resheniyam linearizovannoj sisteme uravnenij, a pri komplexnyh polozheniyah ravnovesiya imeetsya bol`shoe nelinejnoe i komplexnoe reshenie. Prichem komplexnye resheniya obyknovennyh differencial`nyh uravnenij yavlyajutsya turbulentnymi. Nelinejnye differencial`nye uravneniya imejut ostatochnye reshenie. Vyvedeny nelinejnye uravneniya na osnove uravneniya OTO, opisyvajushhie jelektromagnitnoe pole pri bol`shoj jenergii. Na baze jetogo ustojchivogo resheniya nelinejnyh uravnenij v jelektromagnitnom sluchae, mozhno cherpat` jenergiju iz vakuuma. Process, opisyvaemyj resheniem nelinejnogo uravnenii jelektrodinamiki, cherpaet jenergiju iz vakuumnyh chastic. Pri jetom skorost` sveta jetih chastic umen`shaetsya i umen`shennaya jenergiya ob#ema sistemy cherpaetsya iz okruzhajushhego kosmicheskogo prostranstva. No Vselennaya bezgranichna i istochnik vseh vidov jenergii jeto jenergiya chastic vakuuma, v tom chisle jenergiya uglya, nefti i gaza, obrazujushhaya iz jelektromagnitnoj jenergii Solnca, yavlyajushhayasya jenergiej chastic vakuuma. ····· 1036118801
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book we propose novel theoretical approaches to the description of acoustic oscillations in plated piezoelectric structures and asymmetric magnetoelectric composites. The expansion of acoustic Lamb-Love s and longitudinal waves in such structures and the fundamental effective properties of them are described. The considerable enhancement of piezoelectric, magnetoelectric, magnetic and dielectric properties in such objects under the applied alternate electric and magnetic fields has been found. The nature of structure deformation of long, narrow and thin microstructures under the Lamb-Love s wave motion at different frequencies is revealed. The results of this book will be useful for scientists in the field both engineering and fundamental physics. ····· 1036118726
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray New model of the Universe evolution is based on its representation as the topological medium. Its basic property is its tendency to occupy simultaneously infinitely large and infinitely small spaces. Different ratio of these tendencies causes wide border zone that finds itself in two extreme forms (compressed and expanded), and the original topological swing stimulates their medial-state forming and results in medium cycle in general. The revealed logic of topological transformations covers all the fields and levels of the Universe and that s why it can be named as the Theory of all. ····· 1036118717
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Long-haul optical telecommunication system nowadays depend solely with high power silica-based optical amplifier doped with Erbium as an active materials. Development of novel glass host for optical amplifier can renew and enhance the capacity and distance further to be more cost effective. This book focus on characterization and analysis of bismuth-based optical amplifier as a wide band optical amplifier for optical telecommunication. Bismuth host have shown significant improvement in term of optical gain, noise figure, length of optical fiber, compactness and more importantly the device cost. Author do believe with further study, bismuth-based optical amplifier capable to replace currently deployed silica-based optical amplifier due to its outstanding performances. ····· 1036118654
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Local Composite Operator (LCO) formalism presents an alternative approach for renormalizing a Field Theory in which a dynamical symmetry breaking is induced. This last fact can be seen in the mass generation of the particles considered in the model studied (e.g, bosons or fermions) via an interaction with an auxiliar scalar field introduced appropriately into the respective generating functional. After doing this, the associated effective potential is studied so a vaccuum stabilization (related to the symmetry breaking) is obtained. All the phenomena mentioned above occur at zero temperature, which is an extremal and ideal regime. Thus, it is appropriate and quite important to analize the finite-temperature regime of the theory because some interesting features of the model happen when the system is heated up, as in the case of the well-known phase transitions due to symmetry restoration. ····· 1036118530
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray There is a rich variety of elementary particles. There is not also the electron, but also its heavier brothers the muon and the tau particle. The up and downquark that make up protons and neutrons are also not alone: there are strange, charm, bottom and top quarks, that are like them, but just a bit heavier. Together, the particles can be grouped in three generations. In the Standard Model of particle physics, this is considered an experimental fact, but not explained with a deeper physical reason. Theories where the Standard Model is extended with a flavour symmetry can not only explain the fact that elementary particles come in generations, but also shine light on the particular structures seen in the masses of the particles of the different generations. ····· 1036118493
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present work deals with the synthesis and characterization of capped ZnS nanostructures and their optical and morphological studies. Tunable emission in semiconductor nano sized II-VI materials was observed by changing particle size. Also doped ZnS nanoparticles are also useful for tuning emission color. For that different samples having different particle size or different dopants were required. But here we present tunable emission in single sample by changing excitation conditions. Tunable emission in whole visible region including white light is observed in a single sample. These synthesized nanoparticles are also tested for their bisensing ability by tagging them with staphylococcus aueurs (SAU) bacteria. Some introductory results of capping ZnS NPs with DNA and their enzyme sensing studies have been presented. ····· 1036118360
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Pyranometers (from the Greek word for fire) were designed specifically for measuring isolation. Isolation is the solar flux density i.e. was measured in watt/square meter. A digital pyronometer is an instrument which is used to measure the total of the solar radiation at the surface of the earth .Hare we introduce a series of argument on the mechanics of exchanges and thermal balance. Moreover with this instrument, a quantitative study of the solar energy is made possible ····· 1036118344
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is very useful to satisfy some of the need of new researchers and the individuals who willing to learn principles of thick film oxide gas sensors and then apply them for useful and meaningful research work. In writing this book a modern approach have been adapted which may prove very successful for introducing the researchers to this subject. A serious attempt is made to present a good quality book in a lucid language. ····· 1036118232
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray It is possible to recreate the early universe conditions (a few micro-second after the Big-Bang) at the relativistic heavy ion collider in BNL and Large Hadron Collider in CERN by ultra relativistic collisions of heavy ions such as Au-Au (Gold-Gold) and Pb-Pb (Lead-Lead) respectively. The form of the matter created at such extreme conditions is known as quark-gluon plasma (QGP) which is shown to be closer to a near perfect fluid. Investigations on the properties of the QGP throw light on the nature of one of the most complicated force in the nature viz. the strong interaction. In this book, an attempt has been made to understand bulk and transport properties of the QGP, by developing an effective quasi-particle descrition based on hot QCD (the underlying theory of strong interaction). The descrition thus obtained is married with the semi-classical transport theory to understand the transport properties of the QGP. ····· 1036118187
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray We have seen that the canonical quantization formalism adopted in this work has brought interesting results. We have solved the Wheeler-De Witt equation and obtained the wave function of the universe. We found that density parameter is related to probability. Moreover, we have found that the scale factor is imaginary. From Stefan`s law we have found the cosmic microwave background radiation (CMBR) temperature.when the universe radius is large, the expansion rate is slow, equation (2-26) which is the expression for the density reduces to that of GR, the density of universe decreases with time as radius increases in conformity with observations. When the radius is assumed to be very small with high expansion rate i.e. a 0 ,a , as happens at early universe, the pressure becomes negative. This also agrees with inflation assumption. We constructed the generalized wave-function in interval of -1 n 1 . and obtained the energy states of the universe . We found E=0 ,when n=a/(2a-1) . This leads to E=0 at radiation era. We calculated the Curvature density parameter and the Curvature energy density . At early universe we found a new Phantom energy, increasing with time. ····· 1036118080
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Technological and scientific potentials of high aspect ratio structures of semiconducting oxides are immense and the future of these materials is certainly bright. A thorough understanding of the growth mechanism is a key towards achieving a controlled growth which is of particular significance both for the creation of novel materials as well as for the ultimate device fabrication. In the present work, SnO2 and ZnO based sub-micron structures have been investigated in detail to realize the possible application in gas sensing and field emission devices. The results of the present studies clearly illustrate that the SnO2 matrix can be effectively tailored by doping with elements like Ru, Cu and Th for the selective detection of LPG, H2S and trimethylamine gases, respectively. Interestingly, an ultra-low onset voltage of meager 40 V is obtained for isolated single multipod and one of its arm. The sharp tips of ZnO structures resulted in the onset current density of 2.76 x 107 microA/cm2, which is much greater than the minimum emission current density (1mA/cm2) required to produce the luminance of 300 cd/m2 from VGA-FED. ····· 1036118071
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