共查询到20条相似文献,搜索用时 15 毫秒
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T. M. Ivanova O. L. Lependina V. A. Smrchek I. N. Sinitsyna 《Journal of Applied Spectroscopy》1995,62(1):126-129
To whom correspondence should be addressd. 相似文献
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Regression relations between the first main component, slope of the SBC curve towards the wavelength axis, and the degree
of mineralization of peat soils are established from experimental data. Errors in determination of peat soil productivity
are estimated using different spectral indices. For practical use it is recommended to measure the spectral brightness coefficients
of peat soils in the 0.50–0.75 μm range.
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, 70, F. Skorina Ave., Minsk, 220072, Belarus.
Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 1, pp. 102–106, January–February, 1998. 相似文献
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Y. V. Zorenko 《Journal of Applied Spectroscopy》1998,65(2):218-223
The processes of crystallization by the method of liquid epitaxy are studied for the first time for single-crystal films of
CdWO4 doped with the mercurylike ions Bi3+ and Pb2+, which can be used as thin-film components of combined scintillators for monitoring α- and β-activities. It is shown that
in comparison with their solidcrystal analogs, the special features of these films consist in a longwave shift of the integral
luminescence spectrum that is caused by high concentrations of the radiating complexes (VCd-WO6) with hvmax=2.05–2.15 eV and the “distorted” complexes (WO6)* in them. It is found that in the case of luminescence of single-crystal films CdWO4:Pb, radiation of mercurylike centers (PbO6) prevails with hvmax=2.87 eV, while in luminescence of CdWO4, radiation of centers (BiO6) with hvmax=2.16 eV and of complexes (VCd-WO6).
Institute of Applied Physics, Iv. Franko Lvov State University, 49, General Chuprynka St., Lvov, 290044, Ukraine. Translated
from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 2, pp. 211–215, March–April, 1998. 相似文献
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The effective signal in x-ray diffraction analysis of material properties often contains high frequency (noise) and low frequency
(trend) components as additive parts. It is necessary to extract the effective signal from the noise to ensure high quality
of signal processing. Digital filters of Volterra type are proposed for filtering purposes and a comparison of Volterra filtration
implemented on x-ray diffraction data versus results from a set of other digital filters is given. 相似文献
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Muhammad A. Mushref 《Central European Journal of Physics》2005,3(2):229-246
Scattering characteristics of two plane waves are investigated for a circular cylinder covered by a dielectric substance.
Fields are assumed to be transverse magnetic (TM) and represented in an exponential series form. The diffracted radiations
are found by applying the boundary conditions to the wave functions. The wave transformation method and the orthogonality
of the exponential functions are respectively employed to obtain an infinite series in the solution. Numerical results are
evaluated by reducing the infinite series to a finite number of terms and comparing estimates with the single plane wave scattering
situation. 相似文献
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