PC World – February 2010

PDF | 111 Pages | English | 21.4 Mb

Hottest articles of this issue :

• Greatest Windows Tips of all time for XP, Vista and Windows 7.
• 25 tips to simplify, speed up and secure Windows.
• Avoid windows upgrade disasters.
• Blu-ray on a budget !
• Which Smartphones and networks can you trust ?

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Genetic Algorithms in Electromagnetics

Description: Authors : Randy L. Haupt, Douglas H. Werner

Genetic Algorithms in Electromagnetics focuses on optimizing the objective function when a computer algorithm, analytical model, or experimental result describes the performance of an electromagnetic system. It offers expert guidance to optimizing electromagnetic systems using genetic algorithms (GA), which have proven to be tenacious in finding optimal results where traditional techniques fail.

Genetic Algorithms in Electromagnetics begins with an introduction to optimization and several commonly used numerical optimization routines, and goes on to feature:

• Introductions to GA in both binary and continuous variable forms, complete with examples of MATLAB(r) commands
• Two step-by-step examples of optimizing antenna arrays as well as a comprehensive overview of applications of GA to antenna array design problems
• Coverage of GA as an adaptive algorithm, including adaptive and smart arrays as well as adaptive reflectors and crossed dipoles
• Explanations of the optimization of several different wire antennas, starting with the famous “crooked monopole”
• How to optimize horn, reflector, and microstrip patch antennas, which require significantly more computing power than wire antennas
• Coverage of GA optimization of scattering, including scattering from frequency selective surfaces and electromagnetic band gap materials
• Ideas on operator and parameter selection for a GA
• Detailed explanations of particle swarm optimization and multiple objective optimization
• An appendix of MATLAB code for experimentation

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Check Your Vocabulary for English for the IELTS Examination

Description: Nonnative speakers of English will find this instructional workbook a helpful source for improving and expanding their English language vocabulary in preparation for the IELTS examination (International English Language Test for Students). Over 60 activities are provided, including word games, puzzles, and quizzes that are specifically designed to target problems areas common to nonnative speakers.

It gives you ideas on various subjects, and there is a very good chance you will encounter a similar one in the writing test.It also helps you moving words from the passive vocabulary – words that you know and understand, but do not use – in the active one, being able to include them in your essay and possibly in your speaking test (read the examples and the essays you write with loud voice – this way you can improve your speaking skills too.)

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The General Knowledge Fact Quiz Book

Description: Arcturus Contributors | Size: 1.6MB | Pages: 386

During the course of our lives, countless snippets of information are stored in the brain: some useful, others merely of interest.
This collection of quizzes tests your knowledge of the world and beyond.
Each round contains ten questions – and you may be astounded at just what you have picked up over the years

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Electronic Principles by Albert Malvino

Description: Electronic Principles provides the clearest, most complete coverage for use in courses such as Electronic Devices, Linear Electronics, and Electronic Circuits.

It’s been updated to keep coverage in step with the fast-changing world of electronics. Yet, it retains Malvino’s clear writing style, supported throughout by abundant illustrations and examples.

Part 1 , Part 2 , Part 3