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51.
Wang Fei Zhang Weiwei Xu Zongfeng Ping Jingyu Chu Hao 《Neural computing & applications》2021,33(15):9061-9073
Neural Computing and Applications - In real-world application of affective brain–computer interface (aBCI), individual differences across subjects and non-stationary characteristics of... 相似文献
52.
This paper is concerned with the problem of stochastic stability analysis for a class of genetic regulatory networks with Markovian jump parameters and time‐varying delays. A delay‐dependent stability criterion is derived by using a novel mode‐dependent Lyapunov functional. The derived stability criterion is expressed in terms of linear matrix inequalities and is less conservative than the existing ones in the literature. A numerical example is provided to demonstrate the effectiveness of the proposed stability criterion. Copyright © 2011 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society 相似文献
53.
54.
A twin-plane re-entrant corner effect (TPRE) in growth of chemical vapour deposited (CVD) -SiC is described by the film and particles of gas-phase homogeneous nucleation. The structural morphology has been characterized by scanning electron microscopy and transmission electron microscopy. Morphological characteristics of the deposited crystals, such as triangularity, hexagons or facets have been explained in terms of the re-entrant corner effect at twin junctions, which were proposed as preferential growth sites for perfect crystals. For real deposits, screw dislocations and/or the re-entrant corner effect are not expected to be compatible. The majority of chemical vapour deposited SiC crystals have a high defect density comprised of {111} twins and dislocations associated with the process variables. Infrared transmission spectra and electron spectroscopy of chemical analysis indicated that the major chemical bonds of CVD -SiC were Si-C and C-H bonds. The positions of the 1s or 2p corelevel peaks for deposits are described. 相似文献
55.
Chu DT Bierlein JD Hunsperger RG 《IEEE transactions on ultrasonics, ferroelectrics, and frequency control》1992,39(6):683-687
The bulk elastic and piezoelectric properties of potassium titanyl phosphate (KTP) and some of its family members such as RbTiOPO(4 ) (RTP) and RbTiOAsO(4) (RTA) have been determined. The piezoelectric, elastic, and dielectric matrix (P-E-D) of KTP has been completely characterized. Values for the temperature dependence of the expansion coefficients and elastic constants have been obtained, and the effects of variations in dielectric constant on coupling coefficient determined. The major diagonal elements of the piezoelectric and elastic matrices of RTP and RTA were measured as were the thermal expansion coefficient of all the KTP isomorphs, KTP in the temperature range 25-80 degrees C, is shown to have a combination of large coupling coefficients (up to k(t)=38% for hydrothermally grown KTP) and medium temperature dependence coefficients of elastic constant (as low as 40 p.p.m./ degrees C for tau(c33) for hydrothermally grown KTP) that makes it attractive for many piezoelectric applications. 相似文献
56.
单元测试是软件测试过程的第一站,高质量的单元测试是软件质量保证的必要条件,本文就单元测试的概念、测试类型及规程作了简单的阐述,同时就单元测试进行了案例分析。 相似文献
57.
PRESSUREDISTRIBUTIONINTHEAIR-SPARGEDHYDROCYCLONE¥Chu,Liangyin;LuoQian(MineralEngineeringDepartment,NortheasternUniversity,She... 相似文献
58.
FLOWFIELDINAIR-SPARGEDHYDROCYCLONEChu,Liangyin;Luo,Qian(MineralEngineeringDepartment,P.O.Box139NortheasternUniversity,Shenyan... 相似文献
59.
Ti-24Al-11Nb腐蚀疲劳断口形貌的研究张跃,褚武扬,王燕斌,肖纪美(北京科技大学北京100083)1引言对Ti-24AI-11Nb合金的断裂特征和断口形貌已进行了较多的研究[“].在300oC的氢气中该合金能发生氢致开裂,其断口形貌与过载断口... 相似文献
60.
VAc/AA改性的VAE乳液高速接嘴卷烟胶的研制 总被引:4,自引:0,他引:4
介绍了VAc/AA改性的VAE乳液高速接嘴卷烟胶的制备方法。研究了各种因素对胶粘剂性能的影响。结果表明 :VAc/AA用量增加 ,VAE乳液的粘接性能增强。选择与VAE乳液相适应的乳化剂和控制适宜的pH值 ,可以增加VAE乳液的稳定性。采用滴加引发剂和混合单体的方法 ,可以避免过速反应产生及大粒径胶粒生成 相似文献