3 months ago
http://upload.wikimedia.org/wikibooks/en/c/c4/Engineering_Acoustics.pdf
Acoustics is the science that studies sound, in particular its production, transmission, and effects. Sound is defined as a small mechanical disturbance that may propagate at a speed characteristic of the medium, provided the medium is of great extent compared to a typical size of the disturbance. Sound may exist in gases, liquids or solids.
The applications of acoustics can be broken down into four main categories: Earth Sciences, Engineering, Life Sciences, and the Arts. Within Earth Sciences, acoustics is used in such applications as the development and refinement of underwater detection devices, the measurement of seismic waves and sound levels in the atmosphere. Engineering applications of acoustics include Noise Control, Electro-Acoustics, Sonic and Ultrasonic Engineering systems, non-destructive material testing, shock and vibrations of mechanical systems, and sound quality design of products. Life Sciences use Acoustics in hearing, speech production, bioacoustics, and psychoacoustics. In the Arts, Acoustics is involved in musical instruments, room acoustics, and communications. The following article describes some of the fundamental principles of Acoustics.
New version 2.0 provides you more methods to generate PDF documents – user interface, virtual printer and right-click. So you can convert Word to PDF, Excel to PDF, PPT to PDF, Image to PDF,…
The program is available for $29.95, but it will be free for our visitors as a time-limited offer.
3 months agoGet a free audiobook from Audible.com. This deal is only available for new members, and is good through Thanksgiving Day. Note that you must register on the site, but no credit card is required.
3 months ago100 of ‘em :-)
3 months agoWe’re excited to offer you this special mix of independent artists, drawn from our DJs playlists and representing the eclectic range featured on our airwaves.
So kick back, enjoy and turn yourself on to some favorites from KCRW.
Please note: This promotion is for U.S. residents only (sorry!). While supplies last.
3 months agoThe Morning After Girls / Part of Your Nature
Fanfarlo / Ghosts
St. Vincent / The Strangers
Headless Heroes / Just Like Honey
Nickodemus / Calle Sol
Black Moth Super Rainbow / Smile the Day After Today
Sonic Youth / Malibu Gas Station
A Camp / Here Are Many Wild Animals
Iron and Wine / Belated Promise Ring
Zap Mama / Do You Wanna?
Edward Sharpe & The Magnetic Zeros / 40 Day Dream
Miike Snow / Sans Soleil
Eels / In My Dreams
Bibio / Ambivalence Avenue
Generationals / When They Fight, They Fight
Moby / Pale Horses (Empyrean Dub remix)
Mayer Hawthorne / Maybe So, Maybe No
The Temper Trap / Sweet Disposition
Quantic and His Combo Barbaro / Un Canto a Mi Tierra
Mocky / Birds Of a Feather