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Understanding Quartz Crystals And Oscillators

Author: Ramon M. Cerda
Publisher: Artech House
ISBN: 1608071189
Size: 28.72 MB
Format: PDF, Kindle
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Quartz, unique in its chemical, electrical, mechanical, and thermal properties, is used as a frequency control element in applications where stability of frequency is an absolute necessity. Without crystal controlled transmission, radio and television would not be possible in their present form. The quartz crystals allow the individual channels in communication systems to be spaced closer together to make better use of one of most precious resources -- wireless bandwidth. This book describes the characteristics of the art of crystal oscillator design, including how to specify and select crystal oscillators. While presenting various varieties of crystal oscillators, this resource also provides you with useful MathCad and Genesys simulations.

Outpatient Ultrasound Guided Musculoskeletal Techniques An Issue Of Physical Medicine And Rehabilitation Clinics Of North America

Author: Evan Peck
Publisher: Elsevier Health Sciences
ISBN: 0323459862
Size: 61.57 MB
Format: PDF, ePub, Docs
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This issue of Physical Medicine and Rehabilitation Clinics of North America will cover musculoskeletal ultrasound in the outpatient. The articles will include: Fundamental Considerations for Ultrasound-Guided Musculoskeletal Interventions, Ultrasound-Guided Shoulder Procedures, Ultrasound-Guided Elbow Procedures, Ultrasound-Guided Hand and Wrist Procedures, Ultrasound-Guided Hip Procedures Ultrasound-Guided Knee Procedures, Ultrasound-Guided Foot and Ankle Procedures, Ultrasound-Guided Spine and Pelvis Procedures and many more exciting topics!

Encyclopedia Of Physical Science And Technology

Author: Robert Allen Meyers
Publisher:
ISBN: 9780122274114
Size: 78.23 MB
Format: PDF, ePub
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Following in the footsteps of the earlier editions, hundreds of the most respected scientists and engineers participated in the creation of this new edition, including many Nobel Laureates. The articles are in-depth, yet accessible, and address all of the key areas of physical science--including aeronautics, astronomy, chemistry, communications, computers, earth sciences, electronics, engineering, materials science, mathematics, nuclear technology, physics, power systems, propulsion, and space technology. (Midwest).

Modern Communications Receiver Design And Technology

Author: Cornell Drentea
Publisher: Artech House
ISBN: 1596933100
Size: 32.20 MB
Format: PDF
View: 4626
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This comprehensive sourcebook thoroughly explores the state-of-the-art in communications receivers, providing detailed practical guidance for constructing an actual high dynamic range receiver from system design to packaging. You also find clear explanations of the technical underpinnings that you need to understand for your work in the field . This cutting-edge reference presents the latest information on modern superheterodyne receivers, dynamic range, mixers, oscillators, complex coherent synthesizers, automatic gain control, DSP and software radios.You find in-depth discussions on system design, including coverage of all pertinent data and tools. Moreover, the book offers you a solid understanding of packaging and mechanical considerations, as well as a look at tomorrowOCOs receiver technology, including new Bragg-cell applications for ultra-wideband electronic warfare receivers. This one-stop resource is packed with over 300 illustrations that support critical topics throughout."