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Ugly S Electrical References 2011 Edition

Autor: George V Hart
Publisher: Jones & Bartlett Publishers
ISBN: 1449657958
File Size: 6,58 MB
Format: PDF, Docs
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Ugly's Electrical References is designed to be used as an on-the-job reference. Used worldwide by electricians, engineers, contractors, designers, maintenance workers, instructors, and the military; Ugly's contains the most commonly required electrical information in an easy-to-read and easy-to-access format. Ugly's presents a succinct portrait of the most pertinent information all electricians need at their fingertips, including: mathematical formulas, National Electrical Code tables, wiring configurations, conduit bending, voltage drops, and life-saving first aid procedures. Revised for the 2011 National Electrical Code, Ugly's Electrical References includes updated coverage of: Combination Circuits Conductor Properties Conduit Bending Conversion Tables Electrical Formulas Electrical Symbols Insulation Charts Math Formulas Metric System Ohm’s Law Parallel Circuits Series Circuits US Weights and Measures Wiring Diagrams

What If

Autor: Randall Munroe
Publisher: Houghton Mifflin Harcourt
ISBN: 0544272994
File Size: 29,84 MB
Format: PDF, Mobi
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The creator of the incredibly popular webcomic xkcd presents his heavily researched answers to his fans' oddest questions, including “What if I took a swim in a spent-nuclear-fuel pool?” and “Could you build a jetpack using downward-firing machine guns?” 100,000 first printing.

Software Based Acoustical Measurements

Autor: Federico Miyara
Publisher: Springer
ISBN: 3319558714
File Size: 19,44 MB
Format: PDF, ePub, Mobi
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This textbook provides a detailed introduction to the use of software in combination with simple and economical hardware (a sound level meter with calibrated AC output and a digital recording system) to obtain sophisticated measurements usually requiring expensive equipment. It emphasizes the use of free, open source, and multiplatform software. Many commercial acoustical measurement systems use software algorithms as an integral component; however the methods are not disclosed. This book enables the reader to develop useful algorithms and provides insight into the use of digital audio editing tools to document features in the signal. Topics covered include acoustical measurement principles, in-depth critical study of uncertainty applied to acoustical measurements, digital signal processing from the basics, and metrologically-oriented spectral and statistical analysis of signals. The student will gain a deep understanding of the use of software for measurement purposes; the ability to implement software-based measurement systems; familiarity with the hardware necessary to acquire and store signals; an appreciation for the key issue of long-term preservation of signals; and a full grasp of the often neglected issue of uncertainty in acoustical measurements. Pedagogical features include in-text worked-out examples, end-of-chapter problems, a glossary of metrology terms, and extensive appendices covering statistics, proofs, additional examples, file formats, and underlying theory.


File Size: 16,15 MB
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Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.