Автор: Elna B. McBride Название: Obtaining Generating Functions ISBN: 3642876846 ISBN-13(EAN): 9783642876844 Издательство: Springer Рейтинг: Цена: 6986.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book is an introduction to the study of methods of obtaining generating functions. Weisner`s group-theoretic method is explained in detail in Chapter II and is further illustrated in Chapter III. His method of obtaining generating functions is only one of these results.
Автор: Subba Ramaiah Kodigala Название: Thin Film Solar Cells From Earth Abundant Materials, ISBN: 0123944295 ISBN-13(EAN): 9780123944290 Издательство: Elsevier Science Рейтинг: Цена: 17391.00 р. Наличие на складе: Поставка под заказ.
Описание: The fundamental concept of the book is to explain how to make thin film solar cells from the abundant solar energy materials by low cost. The proper and optimized growth conditions are very essential while sandwiching thin films to make solar cell otherwise secondary phases play a role to undermine the working function of solar cells. The book illustrates growth and characterization of Cu2ZnSn(S1-xSex)4 thin film absorbers and their solar cells. The fabrication process of absorber layers by either vacuum or non-vacuum process is readily elaborated in the book, which helps for further development of cells. The characterization analyses such as XPS, XRD, SEM, AFM etc., lead to tailor the physical properties of the absorber layers to fit well for the solar cells. The role of secondary phases such as ZnS, Cu2-xS,SnS etc., which are determined by XPS, XRD or Raman, in the absorber layers is promptly discussed. The optical spectroscopy analysis, which finds band gap, optical constants of the films, is mentioned in the book. The electrical properties of the absorbers deal the influence of substrates, growth temperature, impurities, secondary phases etc. The low temperature I-V and C-V measurements of Cu2ZnSn(S1-xSex)4 thin film solar cells are clearly described. The solar cell parameters such as efficiency, fill factor, series resistance, parallel resistance provide handful information to understand the mechanism of physics of thin film solar cells in the book. The band structure, which supports to adjust interface states at the p-n junction of the solar cells is given. On the other hand the role of window layers with the solar cells is discussed. The simulation of theoretical efficiency of Cu2ZnSn(S1-xSex)4 thin film solar cells explains how much efficiency can be experimentally extracted from
Описание: This book presents wet chemical sol-gel and hydrothermal methods for 1D oxide nanostructure preparation. These methods represent an attractive route to multifunctional nanomaterials synthesis, as they are versatile, inexpensive and, thus, appropriate for obtaining a wide range of oxide materials with tailored morphology and properties. Three specific oxides (SiO2, TiO2, ZnO) are discussed in detail in order to illustrate the principle of the sol-gel and hydrothermal preparation of 1D oxide nanostructures. Other oxides synthesized via this method are also briefly presented. Throughout the book, the correlation between the tubular structure and the physico-chemical properties of these materials is highlighted. 1D oxide nanostructures exhibit interesting optical and electrical properties, due to their confined morphology. In addition, a well-defined geometry can be associated with chemically active species. For example, the pure SiO2 nanotubes presented a slight photocatalytic activity, while the Pt-doped SiO2 tubular materials act as microreactors in catalytic reactions. In the case of titania and titanate nanotubes, large specific surface area and pore volume, ion-exchange ability, enhanced light absorption, and fast electron-transport capability have attracted significant research interest. The chemical and physical modifications (microwave assisted hydrothermal methods) discussed here improve the formation kinetics of the nanotubes. The ZnO nanorods/tubes were prepared as random particles or as large areas of small, oriented 1D ZnO nanostructures on a variety of substrates. In the latter case a sol-gel layer is deposited on the substrate prior to the hydrothermal preparation. Using appropriate dopants, coatings of ZnO nanorods with controlled electrical behavior can be obtained.
Автор: Michael A. Crew; Menahem Spiegel Название: Obtaining the best from Regulation and Competition ISBN: 1441954058 ISBN-13(EAN): 9781441954053 Издательство: Springer Рейтинг: Цена: 23757.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The authors, who include young scholars as well as established and highly regarded consultants and researchers, address some of the major issues now facing network industries and regulators - deregulation, competition, stranded assets, diversification, pricing, and mergers and acquisitions.
Автор: R. Ferreira; C. Bonnelle; V. Gutmann; H. Mayer; J. Название: Bonding and Compounds of Less Abundant Metals ISBN: 3662155044 ISBN-13(EAN): 9783662155042 Издательство: Springer Рейтинг: Цена: 11179.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Sub-Saharan Africa is no longer a troubled dark continent. Most of its constituent countries are now enjoying significant economic growth and political progress. The new Africa has begun to banish the miseries of the past, and appears ready to play an important role in world affairs.
Описание: According to studies, we all work for the same thing - and it`s not just money. It`s meaning. Through our work, we seek a sense of purpose, contribution, connection, value, and hope. This title helps to : ask the seven questions that drive abundance; understand the needs of your customers, staff; and, personalize work to motivate your employees.
Introduction.- Legal sources and legal methodology under the ICC Statute.- Previous approaches to the exclusion of illicitly obtained evidence.- The development of an approach to the exclusion of evidence by the International Criminal Court.- Factors in the balancing exercise.- The relation between the violation and the evidence.- Procedural aspects.- Conclusion and outlook.
ООО "Логосфера " Тел:+7(495) 980-12-10 www.logobook.ru
