نتایج جستجو برای: spectral changes

تعداد نتایج: 1024774  

2012
Hidehiko Okamoto Henning Teismann Ryusuke Kakigi Christo Pantev

Natural sounds contain complex spectral components, which are temporally modulated as time-varying signals. Recent studies have suggested that the auditory system encodes spectral and temporal sound information differently. However, it remains unresolved how the human brain processes sounds containing both spectral and temporal changes. In the present study, we investigated human auditory evoke...

Journal: :The Journal of the Acoustical Society of America 1978

Journal: :تحقیقات مهندسی کشاورزی 0
محمدعلی رستمی استادیار بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی و منابع طبیعی استان کرمان محمدحسین رئوفت استاد گروه مکانیک ماشین های کشاورزی دانشگاه شیراز

satellite imagery was used as a rapid and spatially explicit method to delineate crop residue cover and to estimate the use and intensity of conservation tillage. the potential of multispectral high-spatial resolution of worldview-2 local data was evaluated using 11 satellite spectral indices and linear spectral unmixing analysis (lsua). experimental plots were examined; residue cover was measu...

Journal: :Publications of the Astronomical Society of the Pacific 1925

Journal: :International Astronomical Union Colloquium 1971

Journal: :iranian journal of pharmaceutical research 0
parvaneh pakravan young researchers and eliteclub, zanjan branch, islamic azad university, zanjan, iran shahla masoudian department of chemistry, payame noor university, i.r. of iran

the interaction between isatin-β-thiosemicarbazone (ibt) and calf thymus dna (ct-dna) was investigated in physiological buffer (ph 7.4) using neutral red (nr) dye as a spectral probe by uv–vis absorption and fluorescence spectroscopy, as well as viscosity measurements. the ibt is stabilized by intercalation in the dna ( k [ibt –dna] =1.03×105 m−1), and displaces the nr dye from the nr–dna comple...

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