sarkar t k (75 risultati)

Condizione: New. pp. iv + 168 Figures.

Condizione: New. pp. iv + 168.

Condizione: New.

Hardcover. Condizione: Good. No Jacket. Shelf and handling wear to cover and binding, with general signs of previous use. Wear commensurate with age and use. Clean unmarked copy. Light bumping visible to corners of boards and ends of spine strip. Light scuffing and smudging to boards and spine strip. Secure packaging for safe delivery.

hardcover. Condizione: New.

Hardbound. Condizione: As New. Contents: 1. Introduction. 2. General account. 3. General vegetation. 4. Hydrophytic vegetation. 5. Biotic influence on the vegetation. 6. Statistical analysis of the flora. 7. Rare plants. 8. Endemic plants. 9. Exotic species. 10. Artificial key to the families. 11. Alphabetical list of the families. 12. Enumeration of species (Dicots). 13. Enumeration of species (Monocots). References. Index to the Genera. From the introduction: "The natural vegetation of the district Palamau is now facing a severe threat due to increasing urbanization. The 'Flora' may help in listing of several endangered, threatened and rare species. Moreover, it will create an awareness amongst the people as a whole to protect such species from extinction and to take necessary steps for conservation of our ecosystem and environment. Thus 'Flora' is an essential inventory in this respect and hence a necessity to wide range of users. "The district is floristically rich and was formerly a district of Chotanagpur division. The flora of the district is essentially tropophilous though in some parts there is a tendency to xerophily. One of the conspicuous topographical features of the district is the presence of Natarhat Hill (1126 m) which is situated on the border of Gumla and Palamau district and this hilly terrain subtends both temperate and tropical vegetation. From the botanical point of view this region is of high interest due to its affinity with the rich flora of Madhya Pradesh which lies in the border of Palamau. It usually gives rise to reddish 738 pp.

Hardcover. Condizione: Very Good. No Jacket. Sixth Revised and Enlarged. Blue cloth binding with white print on spine and front cover.Light tanning on top edge. Not tight but very sound. Function of binding. Light crushing at spine ends. Two small press marks on rear cover.Clean and unmarked. 784 pages including index. No DJ or pricing present.

Condizione: New.

Condizione: very_good. Supports Goodwill of Silicon Valley job training programs. The cover and pages are in very good condition! The cover and any other included accessories are also in very good condition showing some minor use. The spine is straight, there are no rips tears or creases on the cover or the pages.

Hardcover. Condizione: Very Good. VERY GOOD hardcover, no marks in text; a very clean, gently used copy. Book.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Condizione: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.

Condizione: As New. Unread book in perfect condition.

Condizione: new.

Condizione: New. In.

Condizione: As New. Unread book in perfect condition.

Condizione: New. pp. xxiii + 481 Illus.

Condizione: New. In.

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. With owner's name and inscription inside cover. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9780471210108.

Condizione: New. pp. xxiii + 481 Index.

Hardback. Condizione: New. A step-by-step guide to parallelizing cem codes The future of computational electromagnetics is changing drastically as the new generation of computer chips evolves from single-core to multi-core. The burden now falls on software programmers to revamp existing codes and add new functionality to enable computational codes to run efficiently on this new generation of multi-core CPUs. In this book, you'll learn everything you need to know to deal with multi-core advances in chip design by employing highly efficient parallel electromagnetic code. Focusing only on the Method of Moments (MoM), the book covers: In-Core and Out-of-Core LU Factorization for Solving a Matrix Equation A Parallel MoM Code Using RWG Basis Functions and ScaLAPACK-Based In-Core and Out-of-Core SolversA Parallel MoM Code Using Higher-Order Basis Functions and ScaLAPACK-Based In-Core and Out-of-Core SolversTurning the Performance of a Parallel Integral Equation SolverRefinement of the Solution Using the Conjugate Gradient MethodA Parallel MoM Code Using Higher-Order Basis Functions and Plapack-Based In-Core and Out-of-Core SolversApplications of the Parallel Frequency Domain Integral Equation Solver Appendices are provided with detailed information on the various computer platforms used for computation; a demo shows you how to compile ScaLAPACK and PLAPACK on the Windows® operating system; and a demo parallel source code is available to solve the 2D electromagnetic scattering problems. Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain is indispensable reading for computational code designers, computational electromagnetics researchers, graduate students, and anyone working with CEM software.

Hardback. Condizione: New. New copy - Usually dispatched within 4 working days.

Hardback. Condizione: New. Important new insights into how various components and systems evolved Premised on the idea that one cannot know a science without knowing its history, History of Wireless offers a lively new treatment that introduces previously unacknowledged pioneers and developments, setting a new standard for understanding the evolution of this important technology. Starting with the background-magnetism, electricity, light, and Maxwell's Electromagnetic Theory-this book offers new insights into the initial theory and experimental exploration of wireless. In addition to the well-known contributions of Maxwell, Hertz, and Marconi, it examines work done by Heaviside, Tesla, and passionate amateurs such as the Kentucky melon farmer Nathan Stubblefield and the unsung hero Antonio Meucci. Looking at the story from mathematical, physics, technical, and other perspectives, the clearly written text describes the development of wireless within a vivid scientific milieu. History of Wireless also goes into other key areas, including: The work of J. C. Bose and J. A. FlemingGerman, Japanese, and Soviet contributions to physics and applications of electromagnetic oscillations and wavesWireless telegraphic and telephonic development and attempts to achieve transatlantic wireless communicationsWireless telegraphy in South Africa in the early twentieth centuryAntenna development in Japan: past and presentSoviet quasi-optics at near-mm and sub-mm wavelengthsThe evolution of electromagnetic waveguidesThe history of phased array antennas Augmenting the typical, Marconi-centered approach, History of Wireless fills in the conventionally accepted story with attention to more specific, less-known discoveries and individuals, and challenges traditional assumptions about the origins and growth of wireless. This allows for a more comprehensive understanding of how various components and systems evolved. Written in a clear tone with a broad scientific audience in mind, this exciting and thorough treatment is sure to become a classic in the field.

Condizione: New. In.

Condizione: New.

Condizione: New. Presents insights into how various components and systems evolved. Premised on the idea that one cannot know a science without knowing its history, this work starts with the background - magnetism, electricity, light, and Maxwell's Electromagnetic Theory, and then offers insights into the initial theory and experimental exploration of wireless. Series: Wiley Series in Microwave and Optical Engineering. Num Pages: 680 pages, Illustrations, map. BIC Classification: HB; TJKR. Category: (P) Professional & Vocational. Dimension: 243 x 163 x 38. Weight in Grams: 1033. . 2006. 1st Edition. Hardcover. . . . .

Condizione: New.

Condizione: New.

Hardback. Condizione: New. A valuable addition to the Wiley Series in Microwave and Optical Engineering Today's modern wireless mobile communications depend on adaptive "smart" antennas to provide maximum range and clarity. With the recent explosive growth of wireless applications, smart antenna technology has achieved widespread commercial and military applications. The only book available on the topic of adaptive antennas using digital technology, this text reflects the latest developments in smart antenna technology and offers timely information on fundamentals, as well as new adaptive techniques developed by the authors. Coupling electromagnetic aspects of antenna design with signal processing techniques designed to promote accurate and efficient information exchange, the text presents various mechanisms for characterizing signal-path loss associated with signal propagation, particularly for mobile wireless communications systems based on such techniques as joint space-frequency adaptive processing. In clear, accessible language, the authors: * explain the difference between adaptive antennas and adaptive signal processing * Illustrate the procedures for adaptive processing using directive elements in a conformal array * clarify multistage analysis procedure which combines electromagnetic analysis with signal processing * present a survey of the various models for characterizing radio wave propagation in urban and rural environments * describe a method wherein it is possible to identify and eliminate multipath without spatial diversity * optimize the location of base stations in a complex environment The text is an excellent resource for researchers and engineers working in electromagnetics and signal processing who deal with performance improvement of adaptive techniques, as well as those who are concerned with the characterization of propagation channels and applications of airborne phased arrays.

Condizione: New.