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Particle erosion of infrared materialsQi He , Fanxiu Lv, Fenglei Zhang, Huibin Guo, and Junjun Wei School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.摘 要:Erosion test of some infrared (IR) optical crystals (Ge, ZnS, MgF2, and quartz) was conducted with a number of different erodents (glass......
Supervising, Hebei University, Baoding 071002, China) Abstract: Based on the analysis of the existing experimental testing technology, the process analysis technology of near infrared (NIR) was introduced... based on NIR absorption technology. According to the principle of NIR spectral absorption, power spectrum for frequency measurement, the cross-correlation algorithm for velocity measurement......
and NO are adsorbed on CuO/γ-Al2O3 catalysts. The adsorption behaviors of NH3 and NO were also studied with the in-situ diffusion reflectance infrared Fourier transform spectroscopy methods. The results show... properties was also addressed. Key words: CuO/γ-Al2O3; NH3; NO; adsorption; diffusion reflectance infrared Fourier transform spectroscopy; density functional theory 1 Introduction Nitrogen oxides......
Study on VUV and UV Excitation Spectrum of GdVO4∶Eu3+ 郑丽秋1,戚泽明2,郭常新3,施朝淑4,张庆礼3,魏亚光2 (1.First Laboratory of Institute of Solid State Physics of Chinese Academy of Science,;2.National Synchronous... in the VUV and UV spectrum region. The excitation band in the VUV and UV spectrum region of 60~350 nm consists mainly of the absorption of host, which has obvious absorption of 4fn-15d of Eu3+ and Gd3......
J. Cent. South Univ. Technol. (2008) 15(s1): 256-260 DOI: 10.1007/s11771-008-358-3 Application of higher order spectrum in analysis of magneto-rheological damper control LIU Xiao-mei(刘晓梅... nonlinearities in the complex dynamical systems. This proposal shows that the contributions of the bispectrum, trispectrum, reconstructed bispectrum and reconstructed power spectrum in terms......
J. Cent. South Univ. (2019) 26: 2418-2431 DOI: https://doi.org/10.1007/s11771-019-4184-6 Demodulation spectrum analysis for multi-fault diagnosis of rolling bearing via chirplet path pursuit LIU..., the frequency components induced by different faults interfere with each other. More importantly, the complex sideband clusters around the characteristic frequency further hinder the spectrum......
J. Cent. South Univ. (2018) 25: 2451-2461 DOI: https://doi.org/10.1007/s11771-018-3928-z A K-means clustering based blind multiband spectrum sensing algorithm for cognitive radio LEI Ke-jun(雷可君)1... Germany, part of Springer Nature 2018 Abstract: In this paper, a blind multiband spectrum sensing (BMSS) method requiring no knowledge of noise power, primary signal and wireless channel is proposed......
Investigation on N-doped FZ-Si Crystals by IR Absorption SpectrumLuan Hongfa Liang Junwu Institute of Semiconductor,Academia Sinica,Beijing,China摘 要:<正> N-doped FZ-Si crystals and N-doped NTD FZ-Si crystals and their annealing behavior have been stud......
Barium Gallogermanate Glass Ceramics for Infrared ApplicationsBin Tang1,2),Yi Yang1,3),Youyu Fan1,2) and Long Zhang1) 1) Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences..." name="ChDivSummary">The germanate glass ceramics is a potential candidate material for infrared(IR) dome and window applications.The crystallization mechanism of 20BaO-10Ga2O3-70GeO2 glass......
MOCVD GaxIn1-xAs1-ySby Alloys and the Infrared Detector周天明,张宝林,金亿鑫,蒋红,宁永强摘 要:<正> GaxIn1-xAs1-ySby alloys have been grown by atmospheric pressure... of GaxIn1-xAs1-ySby laverswere characterized by the photoluminescence and the infrared absorption.The spectral responses ofp+-GaInAsSb/p-GaxIn1-xAs1-ySby/n-GaSb detectors showed wavelength cut off......