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The various complex mathematical transformations previously proposed for eliminating methodological errors of multicolor radiation pyrometry are mainly reduced to the determination of such combinations of wavelengths or corrections of registered brightness for the spectral distribution of the radiating capacity of the object being thermometered at which its equivalent radiating capacity is equal to unity. Mathematical formulas of the determining parameters of multicolor pyrometry of radiation have been obtained. Engineering techniques for calculating the critical values of the determining and adjustable parameters at which the application of multicolor optical thermometry is excluded because of large errors have been developed. Algorithms of a priori and a posteriori calibration systems of multicolor pyrometry of radiation of objects with practically any spectral distribution of the radiating capacity are proposed. 相似文献
4.
V. P. Zhukov 《Chemical and Petroleum Engineering》1992,28(1):32-34
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 1, pp. 17–18, January, 1992. 相似文献
5.
Fast, realistic lighting for video games 总被引:3,自引:0,他引:3
A novel, view-independent technology produces natural-looking lighting effects faster than radiosity and ray tracing. The approach is suited for 3D real-time interactive applications and production rendering. 相似文献
6.
I. I. Novikov N. Yu. Gordeev M. V. Maksimov Yu. M. Shernyakov E. S. Semenova A. P. Vasil’ev A. E. Zhukov V. M. Ustinov G. G. Zegrya 《Semiconductors》2005,39(4):481-484
Semiconductor laser heterostructures containing five and ten sheets of InAs/GaAs QDs on GaAs substrates, with an emission wavelength of ~1.3 μm, have been studied. Dependences of the nonradiative lifetime and effective Auger coefficient in QDs are obtained from an analysis of temperature and current dependences of the efficiency of spontaneous radiative recombination. The zero-threshold Auger recombination channel in QDs is shown to dominate at low (below 200 K) temperature, whereas at higher temperatures the quasithreshold channel becomes dominant. The effective 3D Auger coefficient is estimated in the approximation of a spherical QD, and a good agreement with the experimental data is obtained. 相似文献
7.
An algorithm for calculating the parameters of deep-level centers in the space-charge region of semiconductor devices on the basis of an analysis of the curves of thermally stimulated capacitance in the presence of recombination centers with the levels located near the midgap is suggested. The method is tested using the commercial AL-107 GaAs-based light-emitting diodes. The results of calculations of the deep-center parameters in the materials under study are consistent with the results of other methods of analysis. 相似文献
8.
Gubenko A. Krestnikov I. Livshtis D. Mikhrin S. Kovsh A. West L. Bornholdt C. Grote N. Zhukov A. 《Electronics letters》2007,43(25):1430-1431
A comb-generating laser suitable for DWDM application is demonstrated on the basis of a multimode quantum-dot laser. Bit error rate < 10-13 at 10 Gbit/s external modulation was measured for 10 longitudinal modes owing to low (<0.3% over 0.001-10 GHz) relative intensity noise of each individual mode. 相似文献
9.
All-Russia Scientific-Research Institute of Electrophysical Apparatus. Special Office of Machine Design. Institute of High
Temperatures, Russian Academy of Sciences. Translated from Atomnaya énergiya, Vol. 79, No. 3, pp. 178–188, September, 1995. 相似文献
10.
Yu. M. Shernyakov A. Yu. Egorov B. V. Volovik A. E. Zhukov A. R. Kovsh A. V. Lunev N. N. Ledentsov M. V. Maksimov A. V. Sakharov V. M. Ustinov Zhen Zhao P. S. Kop’ev Zh. I. Alferov D. Bimberg 《Technical Physics Letters》1998,24(5):351-353
Continuous-wave lasing has been demonstrated in a vertically coupled quantum-dot laser with a high output power (1.5 W) at
room temperature. It was shown that anisotropy of the quantum dot profile leads to anisotropy of the laser operating characteristics.
Pis’ma Zh. Tekh. Fiz. 24, 50–55 (May 12, 1998) 相似文献