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针刺研究 1989年第Z1期 38-39页

作者： Zhang Shouxin Liu Xiang Wei Beihua institute of Acupuncture and Moxibustion china Academy of Traditional Chinese Medicine, beijing,

The purpose of the study was to observe the effects of EA of 'Hegu' po-int, which was chosen for its specific effects on toothache, on the nociceptiveresponses of NRM neurons induced by stimulation of dental pulp or tail tip,to analyse the specificity of point for EA analgesia. The experiments were performed on male rats anesthetized with *** discharges of NRM neurons were recorded extracellularly with a glassmicroelectrode and their nociceptive responses induced by stimulation throughelectrode inserted into dental pulp of inferior incisor teeth er in one thirdof tail tip respectively.

关键词： HEGU ON THE NOCICEPTIVERESPONSES OF NRM NEURONS INDUCED BY STIMULATION OF DENTAL PULP AND TAIL TIP THE COMPARISON BETWEEN THE EFFECTS OF ELECTROACUPUNCTURE OF

TENSILE PROPERTIES AND INTERFACIAL FEATURE OF SiC COATED C/Al COMPOSITE WIRES UNDER ISOTHERMAL HEAT TREATMENT

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Acta Metallurgica Sinica(English Letters) 1992年第11期5卷 417-422页

作者： CHEN Xinguo ZHENG Guobin SHEN Zuhong DU Haifeng institute of Metal Research,Academia Sinica,Shenyang,china Inst of Metal Research Academia Sinica Shenyang China

The effect of different regimes of heat treatment on the tensile strength of SiC coated composite of C fibers reinforced Al wires has been *** tensile strength may increase under treatment either at 500℃ for 2h or 550℃ for 1h,but decrease over 600℃.After the strength tests of extracted fibers from composite wires,the SiC coating is an excellent protection to C *** and EDAX showed that the C/Al interface of the composite wires is stable under treatment below 600℃,but unstable at 650℃

关键词： composite carbon fiber SiC coating interface Al wire

Linearized Oscillations in Nonlinear Delay Difference Equations

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Acta Mathematica Sinica,English Series 1999年第4期15卷 569-574页

作者： Sanyi Tang Department of Computer and Mathematics,Hubei institute for Nationalities,Enshi 445000,P.R.chinaYanni Xiao institute of Mathematics,Academia Sinica,{3. 100080,P.R.china E-mail:xyn@math03.math.ac.cnJufang Chen Department of Mathematics,Shanxi Normal University,Xi’an 710062,P.R.china Department of Computer and Mathematics Hubei Institute for Nationalities Enshi P. R. China institute of Mathematics Academia Sinica Beijing P. R. China Department of Mathematics Shanxi Normal University Xi’an P. R. China

Consider the nonlinear delay difference equation xn+1-xn+sum j=1 to m pjfj（xn-kj）=0. We establish a linearized oscillation result of this equation,which is the extension of the result in the paper [1].

关键词： Delay difference equation Oscillatory Nonoscillatory

Carleson Measure Characterization of Bloch Functions

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Acta Mathematica Sinica,English Series 1996年第2期12卷 175-184页

作者： Lou Zengjian Lou Zengjian Department of Mathematics Qufu Normal University Qufu,273.65 china and institute of Mathematics Academia Sinica beijing,100080 china e-mail:Ijlou@***

We give several equivalences of Bloch functions and little Bloch *** these results we obtain the generalized Carleson measure characterization of Bloch functions and the generalized vanishing Carleson measure characterization of little Bloch functions,that is,f ∈ B if and only if |Dβf（z）|p（1-|z|2）βp-1dm（z）is a generalized Carleson measure; f ∈ B0 if and only if |Dβf（z）|p（1-|z|2）βp-1dm（z）is a generalized vanishing Carleson measure,where Dβf（β>0）is the fractional derivative of analytic function f of order β,m denotes the normalised Lebesgue measure.

关键词： Bloch space Carleson measure Generalized Carleson measure

PROCESS AND PROPERTIES OF ELECTROLESS PLATING RE-Ni-B-SiC COMPOSITE COATINGS

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Acta Metallurgica Sinica(English Letters) 1995年第2期8卷 118-122页

作者： GUO Zhongcheng LIU Hongkang WANG Zhiyin WANG Min(Kunming institute of Technology,Kunming. china ) Kunming Inst of Technology Kunming China

Technology and properties of electroless composite RE-Ni-B-SiC coatings have been *** show that stabilizer plys a decisive role in electroless composite Ni-B-SiC,the addition of appropriate quantity of RE(rare earth) into the Ni-B-SiC bath not only increases SiC content in composite coatings,their hardness and wear resistance but also improves crystalline fineness,Wear resistance increases with the increase of *** and wear resistance of composite coatings reach peak values a fter heat treatment at 4OO and 500℃ for 1h respectively.

关键词： electroless plating Ni-B-SiC-RE composite coating

STUDY ON THE COAL-ROCK INTERFACE RECOGNITION METHOD BASED ON MULTI-SENSOR DATA FUSION TECHNIQUE

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Chinese Journal of Mechanical Engineering 2003年第3期16卷 321-324页

作者： Ren FangYang ZhaojianXiong ShiboResearch institute of Mechano-Electronic Engineering,Taiyuan University of Technology,Taiyuan 03.024, china Research institute of Mechano-Electronic Engineering Taiyuan University of Technology Taiyuan 030024

The coal-rock interface recognition method based on multi-sensor data fusiontechnique is put forward because of the localization of single type sensor recognition method. Themeasuring theory based on multi-sensor data fusion technique is analyzed, and hereby the testplatform of recognition system is manufactured. The advantage of data fusion with the fuzzy neuralnetwork (FNN) technique has been probed. The two-level FNN is constructed and data fusion is carriedout. The experiments show that in various conditions the method can always acquire a much higherrecognition rate than normal ones.

关键词： Coal-rock interface recognition (CIR) Data fusion (DF) Multi-sensor

Failure Mechanisms and Calculation of Bearing Capacity of a Strip Footing on Soil Considering Joined Influences of Cohesion, Surcharge and Gravity

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岩石力学与工程学报 2001年第4期20卷 481-491页

作者： Wang Yujie , Yin Jianhua , Chen Zuyu ( Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, china) ( china institute of Water Resources and Hydropower Research, {3. 100044 china) 香港工业大学香港中国水利水电科学研究院北京 100044

A numerical method for bearing capacity analysis by the upper bound theorem is presented. Based on the well- known Mohr-Coulomb failure criterion and the associated flow rule, the present method establishes kinematically admissible velocity field within assumed failure mechanism and a work-energy balance equation for determination of the ultimate bearing capacity of a strip footing by minimization. Since the bearing capacity is due to the interaction between (or joined influence of) friction of angle φ, cohesion c, surcharge load q and unit weight of soil γ, a general equation of bearing capacity considering the interaction is derived. Three bearing capacity factors considering the cohesion, surcharge and weight of soil are obtained using two approaches: (a) considering the joined influence and (b) separate calculation. The critical failure mechanisms for the two approaches are obtained and compared. The computed values of the three factors using the two approaches are compared to those published in the literatures. Agreement and differences are discussed.

关键词： bearing capacity strip footing upper bound plasticity numerical analysis limit analysis

A NOTE ON THE SPECTRUM OF NEUTRON TRANSPORT OPERATOR IN A SLAB WITH GENERALIZED BOUNDARY CONDITIONS

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Systems Science and Mathematical Sciences 1992年第2期5卷 97-107页

作者： SONG Degong WANG Miansen (Department of Mathematics,Xi’an Jiaotong University,Xi’an 710049,china)ZHU Guangtian (institute of Systems Science,Academia Sinica,beijing 100080,china)

The spectrum of neutron transport operator A in an arbitrary non-homogeneous slab geometry is discussed in consideration of anisotropic scatteringand *** the assumptions that the boundary reflection coefficient func-tion α（v,μ）,γ（v,μ）and the scattering-fission kernel k（x,v,v′,μ,μ′）are boundedmeasurable,and the total collision frequency v∑（x,v）is square integrable,it isshown that A has at most finite spectrum points in any strip{λ=β+i（?）|β1（?）β（?）β2},where β2>β1>-λ*,with λ* the essential infimum of v∑（x,v）.Fi-nally,the asymptotic expansion of the solution for the time-dependent equation（dN）/（dt）=AN,N（0）=N0 is given as a corollary.

关键词： Neutron transport operator slab geometry generalized boundary conditions spectrum asymptotic expansion

Respondence and feedback of modern sand deserts to climate change ——A case study in Gurbantunggut Desert

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Chinese Science Bulletin 2000年第12期45卷 1137-1142页

作者： WEI WenshouXinjiang institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 83.011, china Open Laboratory of Ice-Core, Cold and Arid Regions Environmental and Engineering Research institute, Chinese Academy ofSciences, Lanzhou 73.000, china Xinjiang institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China Open Laboratory of Ice-Core Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

The research on the respondence and feedback of modern sand deserts to the climate change is an important component part in the studies on the global climate change. Deserts respond to the climate change, meanwhile, they affect the climate with their feedback of peculiar environment during the respondence. Many researches on desert climate have been carried out at home and abroad. However, there is little research on the respondence and feedback of modern fixed, semi-fixed and mobile deserts in arid areas to the climate change, in which the factor analysis as well as the parameter changing effects is especially the difficult problem all along. In this note, the parameters of the respondence and feedback of Gurbantunggut Desert to the climate change are measured and analyzed, some variable parameters of water-heat exchange are obtained, and a numerical model of desertification is developed according to a series of climate change of about 40 years and the variable relations of meteorological and physical

关键词： Gurbantunggut Desert climate change respondence and feedback numerical model.

芘在改性硅胶上的光物理研究——以芘为探针研究改性硅胶的表面特性

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物理化学学报 1989年第3期5卷 285-292页

作者：樊美公中国科学院感光化学研究所

研究了芘在正十碳烷氧基和三甲基硅氧基改性硅腔表面上的荧光光谱和寿命。在这二种硅胶上,激基缔合物是由基态聚积体直接受光和受激发的单分子和基态的单分子所形成、在硅胶≡Si—O—C_(10)H_(21)-n上比在硅胶≡Si—O—SiMe_3.所形成... 详细信息

研究了芘在正十碳烷氧基和三甲基硅氧基改性硅腔表面上的荧光光谱和寿命。在这二种硅胶上,激基缔合物是由基态聚积体直接受光和受激发的单分子和基态的单分子所形成、在硅胶≡Si—O—C_(10)H_(21)-n上比在硅胶≡Si—O—SiMe_3.所形成的聚积体较少。化学改性与物理改性相结合可使芘在较大的浓度范围内主要以单分子分散。激基缔合物的形成主要是由动力学过程所控制。研究了温度对芘的荧光光谱和寿命的影响。激基缔合物形成过程的活化能约为7kcal mol^(-1)。讨论了环境对单分子荧光光谱结构的影响。

关键词：改性硅胶表面特性芘荧光光谱