نتایج جستجو برای: spectral response

تعداد نتایج: 1131917  

1999
Nigel Yee Georgy Gimel’farb

Spectral analysis is widely used for moisture determination in food. However, some types of food being composed of a number of different chemical constituents pose problems for accurate measurement of moisture due to shifts of peak spectral response and changes in peak spectral responses in the absorption bands. We investigate specific changes in spectral response to point out the spectral band...

Journal: :Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 1997
R D DeVoe J M de Souza D F Ventura

Spectral sensitivities of visual systems are specified as the reciprocals of the intensities of light (quantum fluxes) needed at each wavelength to elicit the same criterion amplitude of responses. The review primarily considers the methods that have been developed for electrophysiological determinations of criterion amplitudes of slow-wave responses from single retinal cells. Traditional flash...

2004
Evan Kirby

The QUaD project will measure the cosmic microwave background’s polarization anisotropy from the South Pole beginning in early 2005. This thesis discusses the optical characterization of a single pixel in both the 100 GHz and 150 GHz spectral bands using the QUaD test bed. It describes the methods and results for measuring the pixel’s spectral response, polarization response, spatial response, ...

2012
Khaled Mahmoud Seongchong Park Seung-Nam Park Dong-Hoon Lee

A setup for the calibration of the normalized spectral response of digital imaging sensors/cameras has been developed. In this work, we report on the experimental procedure and results of the normalized spectral response measurement for a digital imaging sensor by using LEDbased tunable uniform monochromatic source. Measurement accuracy is verified by evaluating the measurement uncertainty and ...

Journal: :Optics letters 2004
Josef Schreder Julian Gröbner Alexander Los Mario Blumthaler

The relative spectral responses of erythemally weighted broadband radiometers determined at three different laboratories are compared, and the systems are described. The results of measurements of four different broadband radiometers are discussed. Although the common dynamic range of the measured relative spectral responses is approximately 10(4), the differences in the relative spectral respo...

Journal: :bulletin of the iranian mathematical society 2012
xiugui liu kai ma

let $p$ be a prime number greater than three. in this paper, we prove the existence of a new family of homotopy elements in the stable homotopy groups of spheres $pi_{ast}(s)$ which is represented by $h_nh_mtilde{beta}_{s+2}in {rm ext}_a^{s+4, q[p^n+p^m+(s+2)p+(s+1)]+s}(mathbb{z}_p,mathbb{z}_p)$ up to nonzero scalar in the adams spectral sequence, where $ngeq m+2>5$, $0leq sext}_a^{s+2,q[(s+2)p...

Journal: :Revista Brasileira de Geografia Física 2013

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