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The Fem Calculation of Magnetic Field in Nonlinear Anisotropic Media
ISBN: 9783659400308 / Angielski / Miękka / 128 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. In the present work we study the modelling of quasi-stationary magnetic fields in nonlinear anisotropic media by FEM. The characteristics of soft ferromagnetic materials are thouroughly reviewed and eventually applied to the construction of a full 2D model of an anisotropic steel sheet. Some improvements in the construction in comparision to the ones previously published were achieved. We point out that the standard formulations and the subsequent theorems for the boundary value problems do not in fact correspond with the physical situation. Instead, we propose new formulations that reflect...
In the present work we study the modelling of quasi-stationary magnetic fields in nonlinear anisotropic media by FEM. The characteristics of soft ferr...
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276,87 |
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Nelineynye Spinovye Vozbuzhdeniya V Magnito-Khiral'nykh Tverdykh Telakh
ISBN: 9783659423345 / Rosyjski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Magnitokhiral'nye neorganicheskie splavy s gelikoidal'noy i bolee slozhnymi spinovymi orientatsiyami poyavilis' i issleduyutsya uzhe bolee poluveka. Dinamicheskie magnitnye effekty v splavakh stali privlekat' interes sravnitel'no nedavno. So vremen razvitiya neytronografii poyavilis' magnitokhiral'nye ob"ekty novogo tipa - metalloorganicheskie kristally. V etikh ob"ektakh takzhe obnaruzhivaetsya ryad fundamental'nykh yavleniy, svyazannykh s nelineynymi spinovymi vozbuzhdeniyami (skermionami, solitonami i t.p.). Eti dve vetvi issledovaniy v materialakh razlichnoy prirody (organicheskoy i...
Magnitokhiral'nye neorganicheskie splavy s gelikoidal'noy i bolee slozhnymi spinovymi orientatsiyami poyavilis' i issleduyutsya uzhe bolee poluveka. D...
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276,87 |
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Chiral 3D Potassium Tris(oxalato)Ferrate(iii) Crystals
ISBN: 9783659432620 / Angielski / Miękka / 148 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book deals with the synthesis, crystal growth and some of the physical properties of anhydrous Potassium tris(oxalato)ferrate(III) and Potassium sodium tris(oxalato)ferrate(III) with multifunctional applications. This book focuses on the crystal growth, structure, perfection, spectroscopic, optical, magnetic, dielectric and mechanical properties. The charge transfer mechanism is discussed using the quantum mechanical calculations of hyper polarizability and dipole moment. From the decomposition of iron oxide nanoparticles using XRD and spectroscopic techniques. Magnetic behaviuor of...
This book deals with the synthesis, crystal growth and some of the physical properties of anhydrous Potassium tris(oxalato)ferrate(III) and Potassium ...
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276,87 |
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Novel Applications of Metamaterials in Patch Antenna
ISBN: 9783659473814 / Angielski / Miękka / 152 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. In this book,an original theoretical, numerical and simulation based realistic study of metamaterial loaded circular patch antenna has been described. Initially, basics of metamaterials and patch antennas have been discussed. Later,a novel technique to achieve multi-band performance in both reduced and conventional sized microstrip circular patch antennas loaded with metamaterial has been shown with mathematical derivation. Incorporation of symmetric slotting concept with the concept of additional mode modification in both ENG and MNG metamaterial loaded circular patch antennas have been...
In this book,an original theoretical, numerical and simulation based realistic study of metamaterial loaded circular patch antenna has been described....
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276,87 |
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Luminescence Studies on SM, Eu, Dy, Er and Er/Yb Ions in K-NB-Si Glasses
ISBN: 9783659109447 / Angielski / Miękka / 148 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. It is a matter of pleasure to present the Luminescence studies on Sm3+, Eu3+, Dy3+, Er3+ and Er3+/Yb3+ ions in potassium niobate silicate glasses. The prime objectives of this book are: To prepare Potassium Niobate Silicate (K- Nb- Si) glasses doped Sm3+, Eu3+, Dy3+, Er3+ and Er3+/Yb3+ ions To characterize and optimize the prepared glasses by the conventional spectroscopic techniques like absorption, emission, decay, etc. measurements. To identify the optimum concentrations of dopant ions for efficient luminescence. To find lifetime of the emission level of rare earth ion by increasing active...
It is a matter of pleasure to present the Luminescence studies on Sm3+, Eu3+, Dy3+, Er3+ and Er3+/Yb3+ ions in potassium niobate silicate glasses. The...
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276,87 |
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Static State Estimation for Power Systems
ISBN: 9783659182976 / Angielski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The heart of the data processing activities of a modern electric utility energy control center is the power system state estimator. A state estimator provides the same information on-line that are provided by a load flow study off-line. This information is used for contingency evaluation, security assessment, control strategy and economic dispatch. An energy control center gathers information on the state of a power system that may include large errors which called bad data. In view of the above consideration, it is necessary to have a method to establish a reliable and complete data base for...
The heart of the data processing activities of a modern electric utility energy control center is the power system state estimator. A state estimator ...
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276,87 |
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Elektroosmos
ISBN: 9783659202889 / Rosyjski / Miękka / 128 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Elektroosmos - eto dvizhenie zhidkosti cherez kapillyarno - poristye sredy pod deystviem postoyannogo ili impul'snogo unipolyarnogo elektricheskogo polya. Elektroosmos nablyudaetsya v takikh sredakh, kak grunty, beton, morskie, rechnye i ozernye ily, kirpich, torf i dr. Pod deystviem elektroosmosa mozhno ne tol'ko udalyat' vlagu, no i propityvat' sredy razlichnymi sostavami, izmenyaya ikh fiziko-mekhanicheskie svoystva. Krome etogo mozhno izvlekat' iz kapillyarno - poristykh sred poleznye iskopaemye, naprimer, neft' ili udalyat' vrednye zagryazneniya. Prakticheskaya realizatsiya...
Elektroosmos - eto dvizhenie zhidkosti cherez kapillyarno - poristye sredy pod deystviem postoyannogo ili impul'snogo unipolyarnogo elektricheskogo po...
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276,87 |
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Systèmes de Contrôle Commande Numérique Utilisant Le Standard Iec61850
ISBN: 9783841793485 / Francuski / Miękka / 140 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Dans le domaine A(c)lectrique, les fonctions de Transport et de Distribution Publique assurent le transit de l'A(c)nergie A(c)lectrique entre les points de production et les points de consommation au niveau de tout le pays. Le poste MT/MT en distribution publique assure le passage entre deux niveaux MT. De tels postes MT/MT intA]grent des transformateurs. Ils sont nA(c)cessaires dans certains pays qui utilisent deux niveaux successifs de tension sur leur rA(c)seau MT, c'est le cas par exemple du Nigeria oA le rA(c)seau MT est dA(c)composA(c) en deux niveaux avec le 11 kV et le 33 kV. Dans le...
Dans le domaine A(c)lectrique, les fonctions de Transport et de Distribution Publique assurent le transit de l'A(c)nergie A(c)lectrique entre les poin...
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276,87 |
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Conflict in Quantum Physics
ISBN: 9783659511363 / Angielski / Miękka / 152 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The book describes the conflict between Science and observable Reality. The conflict arose as a result of the basic postulate of the Standard Model, which eliminated the rest mass of a photon of light and built the concept of the structure of matter from quarks, colors, flavors and Higgs particles. The author offers the only way to resolve the conflict by restoring the rest mass of a photon of light and build photonic structure of the Universe.
The book describes the conflict between Science and observable Reality. The conflict arose as a result of the basic postulate of the Standard Model, w...
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276,87 |
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Using Ann to Decrease the Losses in Electric Power System
ISBN: 9783659534508 / Angielski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. In this book an electric power system is considered, we design mathematical model for the determination of the increase in operational cost of transmission line caused by reactive power transmission, and decrease the Losses in electric power system by derived mathematical relations to determine an economically justified transmission distance for VARs transmission. Also, detailed analyses to help determine the increase in production costs due to the transmission of reactive power are given. The main purpose of the book is to introduce the detailed analyses of artificial neural networks...
In this book an electric power system is considered, we design mathematical model for the determination of the increase in operational cost of transmi...
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276,87 |
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Dark Current and Absorption of Quantum Dot Infrared Photodetectors
ISBN: 9783659574610 / Angielski / Miękka / 128 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Most of the currently available infrared photodetectors are of either the mercury cadmium telluride (HgCdTe) or quantum well infrared photodetectors (QWIPs) types. Both of these systems have certain drawbacks that have led to the search for better infrared photodetectors. Quantum dot infrared photodetectors (QDIPs) have been studied theoretically and experimentally, and are expected to surpass HgCdTe infrared photodetectors and QWIPs. Although QDIPs are promising candidates for the next generation infrared photodetectors, there are no reliable theoretical models that describe the performance...
Most of the currently available infrared photodetectors are of either the mercury cadmium telluride (HgCdTe) or quantum well infrared photodetectors (...
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276,87 |
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Electrodynamics and Thermodynamics of Nuclear Explosions and TNT
ISBN: 9783659579226 / Angielski / Miękka / 140 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. According to the program "Starfish" of 9 July 1962 of the USA exploded in space above Pacific Ocean H-bomb. With conducting of tests it was discovered, that the explosion is accompanied by the electric pulse of very large amplitude and short duration. In spite of that which from the moment of explosion past is already more than fifty years, the up to now existing electrodynamics to explain this phenomenon does not can. Accompany nuclear explosions such phenomena as the emission of electromagnetic waves in the radio-frequency band, and also the so-called rope tricks. For explaining the...
According to the program "Starfish" of 9 July 1962 of the USA exploded in space above Pacific Ocean H-bomb. With conducting of tests it was discovered...
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276,87 |
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Power Electronics
ISBN: 9783659576157 / Angielski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Due to the progress in electronic components and equipment development achieved in the last decades, electrical energy conversion is today a rapidly expanding field of power and electrical engineering. Different kinds of power supplies are used everywhere in normal daily routines at home, office, medicine, industry, and energy transmission machines and processes. The problems this book addresses are the basics of electrical energy conversion with power electronic converters. The goal is to describe, explain and compare different modes of low, middle and high power electronic system...
Due to the progress in electronic components and equipment development achieved in the last decades, electrical energy conversion is today a rapidly e...
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276,87 |
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Microgrids: Operation, Control, and Protection
ISBN: 9783659612572 / Angielski / Miękka / 152 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This work proposes a power management and control strategy for islanded microgrids, which consist of multiple electronically-interfaced distributed energy resource (DER) units, to achieve a prescribed load sharing scheme. This strategy provides 1) a power management system, 2) DER local controllers, and 3) a frequency control and synchronization scheme. This strategy is then generalized to incorporate both power-controlled and voltage-controlled DER units. To prevent DER unit trip-out or damage under short-circuit conditions, an overcurrent/overload protection scheme is also proposed. Under...
This work proposes a power management and control strategy for islanded microgrids, which consist of multiple electronically-interfaced distributed en...
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276,87 |
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Studies on structural and dielectric properties of β-Ga2O3 thin films
ISBN: 9783659638916 / Angielski / Miękka / 136 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. In this study we report on structural and electric properties of -Ga2O3 on Si and GaN substrates. Since Ga2O3 has a band-gap of 4.8 eV at room temperature and a dielectric constant of 10.2 14.2, Ga2O3 can be a potential candidate dielectrics for MIS devices. -Ga2O3 has been deposited using various techniques such as radio-frequency sputtering, plasma enhanced atomic layer deposition (PEALD), and pulsed laser deposition (PLD). In particular, epitaxial Ga2O3 thin films grown on n-GaN/Al2O3 substrate by PLD technique have a monoclinc -Ga2O3 phase and peaks were indexed as (-2 0 1) and higher...
In this study we report on structural and electric properties of -Ga2O3 on Si and GaN substrates. Since Ga2O3 has a band-gap of 4.8 eV at room tempera...
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276,87 |
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Energy Levels of Transition of Metal Ions in Solids
ISBN: 9783659322884 / Angielski / Miękka / 148 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The information of the crystal structure is a necessary pre-requisite for the understanding of materials, the knowledge of the electronic structure is of primary importance for investigating the optical, magnetic and spectral properties governed by the chemical bonding. First group transition metal ions form convenient probes for the study of the relevant properties of the materials. Spectroscopy is a powerful, simple and accurate tool to unravel the mysteries of electronic structures through these probes. Optical absorption and EPR studies are extensively used for exploring the interesting...
The information of the crystal structure is a necessary pre-requisite for the understanding of materials, the knowledge of the electronic structure is...
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276,87 |
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Оптимизация краткосроч&#
ISBN: 9783659685941 / Rosyjski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. В монографии обобщен существующий опыт в вопросах моделирования и оптимизации краткосрочных режимов ГЭС, предложена методика оперативного моделирования производства с уточнением в режиме реального времени гидравлических и энергетических характеристик гидроагрегатов. Описана методика оптимального планирования...
В монографии обобщен существующий опыт в вопросах моделирования и оптимизации кр...
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276,87 |
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Determinação da polarização da OEM de fontes desconhecidas pelo M.C.L.
ISBN: 9783639755022 / Portugalski / Miękka / 136 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. O livro aborda de forma detalhada a construcao da polarizacao da onda eletromagnetica na regiao de campos distantes, com objetivo de mensurar a amplitude e fase do campo eletrico nessa regiao para OEM completamente polarizadas. Um sistema de medicao foi desenvolvido, bem como um modelo matematico novo para a aquisicao da amplitude e fase do campo eletrico na determinacao da polarizacao da OEM. Os resultados experimentais apresentados no decorrer do livro possuem bastante conformidade com a solucao analitica desenvolvida. Com a modificacao realizada no metodo da componente linear, alem de...
O livro aborda de forma detalhada a construcao da polarizacao da onda eletromagnetica na regiao de campos distantes, com objetivo de mensurar a amplit...
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276,87 |
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Diffraction Based High Resolution Imaging Devices
ISBN: 9783659763298 / Angielski / Miękka / 140 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Imaging at nanoscale using visible frequency spectrum has always been a challenging aspiration for optics community. The advent of plasmonics has given a great opportunity to engineer and invent optical devices using unconventional materials and methods that can manipulate light at nanoscale dimensions. In this book, Dr. Inampudi emphasize the principles of imaging devices using plasmonic diffraction elements and numerically demonstrate the capabilities of these devices to resolve objects with nanoscale resolutions. It includes a detailed numerical methodology to compute electromagnetic...
Imaging at nanoscale using visible frequency spectrum has always been a challenging aspiration for optics community. The advent of plasmonics has give...
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276,87 |
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Rotary Theory of the Magnetic Field
ISBN: 9783659780981 / Angielski / Miękka / 148 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This monograph is dedicated to a new macro-theory of electromagnetics and to a group of fundamental issues, related to that theory. This work is an attempt to break the classic approach for introducing the basic concepts, quantities and laws, giving the foundation for the perception of different electromagnetic effects and phenomena. A model of the magnetic field is proposed, accompanied by the use of new quantities and concepts, through which the existing electromagnetic laws and quantities can be perceived in a completely new and natural way in a whole, which the classic theory does not...
This monograph is dedicated to a new macro-theory of electromagnetics and to a group of fundamental issues, related to that theory. This work is an at...
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cena:
276,87 |
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