Technology

Quickly Master AutoCAD 2009 Essentials. The new edition of this hands-on guide helps users of all skill levels learn the basics of AutoCAD(r) 2009 and AutoCAD LT(r) 2009 easily and efficiently. Bestselling AutoCAD author and expert George Omura offers clear explanations, a task-based approach, and pages of real-world examples and exercises to make this thorough book more valuable and useful than ever. Whether you're new to AutoCAD or just looking for a quick refresher, you'll find the fast, focused introduction to AutoCAD you need to get quickly up to speed. *. Explore the all-new interface in AutoCAD 2009 and AutoCAD LT 2009. *. Navigate the new Ribbon panel to access the tools you need. *. Master the basics of drawing and editing with precision. *. Add and edit notes and dimensions. *. Learn the fundamentals of 2D drawings and 3D models. *. Understand layers, blocks, groups, and external references. *. Find areas and distances quickly. *. Easily extract hidden data. George Omura is the all-time bestselling AutoCAD author and was cited as the favorite CAD author by members of the Autodesk User Group International (AUGI) in AUGIWorld magazine's "Best of Everything CAD" issue. more...

Price: $34.99

Get All the Practice Questions and Answers, Calculations, and Troubleshooting Tips You Need to Ace the major HVAC Licensing Exams!. HVAC technicians and students alike can turn to the HVAC Licensing Study Guide for everything they need to prepare for and pass the major HVAC licensing exams on the very first try! Designed to boost confidence, skills, and knowledge, this unique career-building resource contains over 800 practice questions and answers, essential calculations, and step-by-step troubleshooting tips for the job site. Written by two of the most experienced and successful authors in the HVAC field, this on-target book presents a wealth of current information on heating…boilers…ventilation ductwork…air conditioning systems and methods…refrigeration…electrical systems…control devices…materials and equipment design…and codes and standards. Filled with over 200 detailed illustrations and handy “tip boxes” on important code matters and exam questions, the HVAC Licensing Study Guide enables readers to: Develop skills with material most likely to appear on the NATE, ICE, RSES, and HVAC licensing exams; Improve test-taking ability with over 800 exam-style multiple-choice and true/false questions and answers; Learn about the latest refrigerant usage and regulations; Keep up with the most recent codes and standards; Acquire the confidence, skills, and knowledge needed to pass your licensing exam on the first try. This HVAC Study Guide Will Help You Master: • Heating (Boilers) • Ventilation (Ductwork) • Air Conditioning • Refrigeration • Electrical • Control Devices • and Much More! more...

Price: $39.95

This book considers 150 problems that regularly arise in building contracts and provides a detailed explanation as to their answers. It cites key parts of legal decisions as authority. The new edition includes some 50 new problems, and revised solutions to a third of the problems to take account of recent case law. more...

Price: $105.00

The book is devoted to the very basis of acoustics and vibro-acoustics. The physics of the phenomena, the analytical methods and the modern numerical techniques are presented in a concise form. Many examples illustrate the fundamental problems and predictions (analytic or numerical) and are often compared to experiments. Some emphasis is put on the mathematical tools required by rigorous theory and reliable prediction methods. more...

Price: $113.00

DC/DC conversion techniques have undergone rapid development in recent decades. With the pioneering work of these authors, DC/DC converters have now moved into their sixth generation. This book offers a concise, practical presentation of DC/DC converters, summarizing the spectrum of conversion tecnologies and presentingmany new ideas and more than 100 new topologies. Nowhere else in the literature are DC/DC converters so logically sorted and systematically introduced, and nowhere else can readers find detailed information on prototype topologies that represent a major contribution to modern power engineering. More than 320 figures, 60 tables, and 500 formulae facilitate understand and provide precise data. more...

Price: $219.95