نتایج جستجو برای: electric attenuator

تعداد نتایج: 144590  

2009
Yang-Xin Fu Klaus Pfeffer Lieping Chen Jonathan Kaye Mendy L. Miller Youjin Lee Yang Wang Yonglian Sun Nicholas K. Brown Matthew J. Ruddy Kenneth M. Murphy

2017
V. P. Koshelets S. V. Shitov A. V. Shchukin A. M. Baryshev L. V. Filippenko J. Mygind

2008
Y. H. Qi P. Desjardins X. S. Meng Z. Y. Wang

Organic ruthenium complexes and polymers with electrochromic activity in the near infrared region were prepared and their electrochemical and optical properties were investigated. The intrinsic attenuating property of these materials depends mainly on the concentration of the pair of ruthenium units in the complexes or polymers. One cured film had the attenuating power of 6.9 dB per micron thic...

2003
Sen M. Kuo D. W. Sun Woon-Seng Gan

− This paper presents the development of integrated near-end acoustic echo and noise reduction algorithm. The modified frequency-sampling filter (FSF) provides an effective filterbank for splitting signal into equally spaced frequency channels. The center clipper and attenuator are employed at each frequency bin for attenuating near-end acoustic echo and noise. The adaptive clipping threshold a...

Journal: :Behavior Research Methods & Instrumentation 1972

Journal: :Journal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation 1970

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