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Luminescence de nanocristaux de silicium
ISBN: 9783841632241 / Francuski / Miękka / 296 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ce travail porte sur létude des mécanismes de luminescence de nanocristaux de silicium (nc-Si) de taille contrôlée. Les matériaux étudiés sont des couches minces de SiO2 contenant des nc-Si confinés. La structure des films est caractérisée par spectroscopie dabsorption infrarouge, diffraction de rayons X et microscopie électronique à transmission. La distribution en taille des nc-Si est mesurée, montrant que la taille est contrôlée avec une faible dispersion. Les mécanismes de luminescence sont étudiés par spectroscopie de photoluminescence continue et résolue en temps de 4...
Ce travail porte sur létude des mécanismes de luminescence de nanocristaux de silicium (nc-Si) de taille contrôlée. Les matériaux étudiés sont ...
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cena:
509,47 |
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Economic Analysis & Power Management of a Small Hybrid Power System
ISBN: 9783659753213 / Angielski / Miękka / 68 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. |
cena:
178,47 |
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Development of Halophosphate Phosphors
ISBN: 9783659712722 / Angielski / Miękka / 72 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. |
cena:
178,47 |
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Electric Field Optimization In SF6 Circuit Breakers
ISBN: 9783659754920 / Angielski / Miękka / 128 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The objective of this work is to find an innovative way to enhance the insulation capability (Increasing the breakdown voltage) in SF6 CBs by reducing the electric field concentration inside the insulation medium. To achieve that, the electric field Problem in SF6 Circuit Breaker is formulated as an optimization problem. Two artificial intelligence techniques namely: particle swarm (PS) and simulated annealing (SA) were used to solve the objective function. A combined ANSYS-Artificial intelligence algorithms have been proposed. The effectiveness of the newly proposed electric field...
The objective of this work is to find an innovative way to enhance the insulation capability (Increasing the breakdown voltage) in SF6 CBs by reducing...
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cena:
245,56 |
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Fundamentals of Electromagnetic Theory: Made Easy
ISBN: 9783659758959 / Angielski / Miękka / 76 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book is written in classroom lecture series style to explain Basic Fundamentals of Electromagnetic Theory in 24 lectures for students. This book is intended for those who dont have any previous background in Electromagnetic. This book shall serve the purpose of lecture notes along with a classical textbook of Electromagnetic. This book explains very fundamentals of Divergence & Curl with their physical significance,Origin of Various laws related to Electromagnetic Theory and Maxwells Equations, Concept of Electric Dipole, Electrostatics, Magnetostatics, Capacitance etc explained in...
This book is written in classroom lecture series style to explain Basic Fundamentals of Electromagnetic Theory in 24 lectures for students. This book ...
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cena:
178,47 |
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Desempenho de redes de distribuição
ISBN: 9786130156886 / Portugalski / Miękka / 104 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Neste trabalho avalia-se o efeito de tensoes induzidas por descargas atmosfericas em redes de distribuicao considerando-se a ocorrencia de rupturas em isoladores. Para o calculo das sobretensoes induzidas, utilizou-se uma abordagem direta no dominio do tempo. O acoplamento dos campos eletromagneticos gerados pela descarga com a linha foi realizado com a utilizacao do modelo de Agrawal. O modelo foi implementado no ATP. Para avaliar a ocorrencia de falhas de isolamento na rede foi implementado um modelo de isolador baseado no metodo da integracao. Tres diferentes metodologias foram testadas...
Neste trabalho avalia-se o efeito de tensoes induzidas por descargas atmosfericas em redes de distribuicao considerando-se a ocorrencia de rupturas em...
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cena:
245,56 |
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Partidas convencionais de motores de indução
ISBN: 9786130165987 / Portugalski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. O presente trabalho mostra as partidas convencionais dos motores de inducao, fazendo uma explanacao dos tipos de acionamentos, citando as vantagens e desvantagens de cada um. Os acionamentos eletricos caracterizam-se por controlar as maquinas movidas a eletricidade, visando facilitar e modernizar o seu funcionamento, aumentando assim o conforto e a producao inerente as mesmas. Para isso, sao estabelecidos parametros de seguranca tanto a maquina quanto ao operador. Para o estudo em questao, foi necessario abordar os dispositivos de comando responsaveis por cada um dos tipos de acionamentos,...
O presente trabalho mostra as partidas convencionais dos motores de inducao, fazendo uma explanacao dos tipos de acionamentos, citando as vantagens e ...
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cena:
200,83 |
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Capacitance Measurement Techniques - a New Challenge
ISBN: 9783659779916 / Angielski / Miękka / 224 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. New measurement technology for capacitance technique is presented. The main distinctive feature of this technology consists in increase of dimension of the measurements through out of the whole data acquisition and processing chain. Novelty of the proposed technology also lies in the design of capacitance sensor, which comprises a number of elements adapted to surface of the test item with possibility to supply different electric potential over them. The distribution of potential over such an electrode array can be varied in compliance with definite algorithms, thus providing the required...
New measurement technology for capacitance technique is presented. The main distinctive feature of this technology consists in increase of dimension o...
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cena:
205,31 |
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Load Tracking of Unmanned Aerial Vehicle by Fiber Optic Sensors
ISBN: 9783659771521 / Angielski / Miękka / 84 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Aircraft structures are highly complicated mechanical systems that demand constant maintenance in order to ensure safety and airworthiness. The requirements for structural integrity lead to various structural health monitoring processes, such as operational load monitoring. This book describes the development of an advanced smart load monitoring system based on optical fiber Bragg grating sensors for a UAV composite tail boom. The smart load monitoring system comprising optical interrogator, controller computer and embedded optical fibers, was integrated into the airframe and was able to...
Aircraft structures are highly complicated mechanical systems that demand constant maintenance in order to ensure safety and airworthiness. The requir...
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cena:
178,47 |
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Licht ALS Wellenbewegung
ISBN: 9783642889257 / Niemiecki / Miękka / 967 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen fur die historische wie auch die disziplingeschichtliche Forschung zur Verfugung, die jeweils im historischen Kontext betrachtet werden mussen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben."
Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen...
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cena:
300,96 |
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Exploratory Experiments: Ampère, Faraday, and the Origins of Electrodynamics
ISBN: 9780822944508 / Angielski / Twarda / 544 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The nineteenth century was a formative period for electromagnetism and electrodynamics. Hans Christian Orsted's groundbreaking discovery of the interaction between electricity and magnetism in 1820 inspired a wave of research, led to the science of electrodynamics, and resulted in the development of electromagnetic theory. Remarkably, in response, Andre-Marie Ampere and Michael Faraday developed two incompatible, competing theories. Although their approaches and conceptual frameworks were fundamentally different, together their work launched a technological revolution--laying the foundation...
The nineteenth century was a formative period for electromagnetism and electrodynamics. Hans Christian Orsted's groundbreaking discovery of the intera...
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cena:
314,22 |
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Fast spherical discharge
ISBN: 9783639767438 / Angielski / Miękka / 64 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Experimental investigation of the plasma, obtained by means of fast discharge in a spherical cavity, is presented. Time developement and some other properties of the plasma balls are studied. The detailed description of the setup is given together with the related experimental methods and technics. The work gives some hints for further investigations. The theoretical modelling of the process of spherical shock wave generation and its cumulation is an interesting point.
Experimental investigation of the plasma, obtained by means of fast discharge in a spherical cavity, is presented. Time developement and some other pr...
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cena:
205,31 |
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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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cena:
276,87 |
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Probe Designs & Methods for Depth-Sensitive Optical Measurements
ISBN: 9783659764769 / Angielski / Miękka / 184 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book presents a series of studies on the development of non-contact lens based optical probe designs and data analysis methods for depth sensitive optical measurements, particularly Raman and fluorescence measurements, in skin pigmentary disorders. Several depth-sensitive optical probes and data processing algorithms are developed to extract layer-specific information from turbid media, which is clinically useful for the diagnosis and treatment evaluation of skin pigmentary disorders. Further improvement of these techniques would help advance the use of optical spectroscopy in clinical...
This book presents a series of studies on the development of non-contact lens based optical probe designs and data analysis methods for depth sensitiv...
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cena:
321,60 |
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Enhanced Remote services for Power System Reliability Estimation
ISBN: 9783659767753 / Angielski / Miękka / 192 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book offers novel ideas for solving power system reliability estimation problems by the way of providing scalable and enhanced remote services in a heterogeneous environment. An innovative and comprehensive strategy has been implemented for power system reliability data representation, which is capable of accessing power system data from any data source and converts them into a common format using pre-defined XML document template. An XML annotation scheme is adopted for power system reliability data generation service. The XMLised representation of power system data offers reliable data...
This book offers novel ideas for solving power system reliability estimation problems by the way of providing scalable and enhanced remote services in...
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cena:
290,29 |
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Protection of renewable energy systems
ISBN: 9783659770036 / Angielski / Miękka / 216 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book studies the challenges of protecting power systems with which large renewable energy power plants (REPPs) are integrated. The analyses are founded upon time-domain simulation of detailed REPP models with fault ride-through (FRT) capability. On the transmission level, it explores the performance of distance relays that are installed at an REPP substation and protect the neighboring line. The studies include squirrel cage induction generator and doubly-fed induction generator (DFIG)-based wind farms, as well as full-scale converter-interfaced REPPs. The exclusive fault behavior of...
This book studies the challenges of protecting power systems with which large renewable energy power plants (REPPs) are integrated. The analyses are f...
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cena:
343,97 |
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Solved Problems in Electromagnetics
ISBN: 9783662483664 / Angielski / Miękka / 806 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book presents the fundamental concepts of electromagnetism through problems with a brief theoretical introduction at the beginning of each chapter. The present book has a strong didactic character. It explains all the mathematical steps and the theoretical concepts connected with the development of the problem. It guides the reader to understand the employed procedures to learn to solve the exercises independently. The exercises are structured in a similar way: The chapters begin with easy problems increasing progressively in the level of difficulty. This book is written for... This book presents the fundamental concepts of electromagnetism through problems with a brief theoretical introduction at the beginning of each cha... |
cena:
442,79 |
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Electric Power System
ISBN: 9783659762109 / Angielski / Miękka / 220 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This book explicitly explains the electric power system, especially the Nigerian 330kV grid. It focuses on the analysis of the Nigerian 330kV grid, optimization of transmission loss minimization and maximization of bus voltage profiles. Input data for the analysis were obtained from the Power Holding Company of Nigeria (PHCN), fed into the Matlab & Simulink Version 7.5 and analyzed using Newton-Raphson iterative algorithm. Feasible and economic optimization models were devised to obtain negligible transmission loss and excellent voltage improvement not below the statutory voltage limits in...
This book explicitly explains the electric power system, especially the Nigerian 330kV grid. It focuses on the analysis of the Nigerian 330kV grid, op...
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cena:
343,97 |
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Photoptics 2014: Proceedings of the 2nd International Conference on Photonics, Optics and Laser Technology Revised Selected Papers
ISBN: 9783319273198 / Angielski / Twarda / 164 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This collection of the selected papers presented to the Second International Conference on Photonics, Optics and laser technology PHOTOPTICS 2014 covers the three main conference scientific areas of "Optics", "Photonics" and "Lasers".
This collection of the selected papers presented to the Second International Conference on Photonics, Optics and laser technology PHOTOPTICS 2014 cove...
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cena:
402,53 |
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Bildgebung mit polarisiertem Licht in einem kontaktlosen Dermatoskop
ISBN: 9783639868708 / Niemiecki / Miękka / 140 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Die Zahl der Hautkrebserkrankungen nimmt seit einigen Jahren weltweit stark zu. Bei einer fruhzeitigen Diagnose besteht jedoch eine sehr gute Heilungschance, was die Bedeutung regelmassiger Vorsorgeuntersuchungen verdeutlicht. Die haufigste dabei eingesetzte Untersuchungsform ist die Dermatoskopie. Hierbei handelt es sich um ein nichtinvasives visuelles Untersuchungsverfahren der Haut anhand optischer Kriterien. Dieses Verfahren ist jedoch nicht nur zur Untersuchung von Hautkrebs geeignet sondern fur jegliche Hauterkrankungen, welche mit einer optisch sichtbaren Veranderung einhergehen. Als...
Die Zahl der Hautkrebserkrankungen nimmt seit einigen Jahren weltweit stark zu. Bei einer fruhzeitigen Diagnose besteht jedoch eine sehr gute Heilungs...
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cena:
250,04 |
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