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| 1 | 论信息系统集成的实施显示文摘本文以笔者从事信息系统集成的经验为基础,讨论了信息系统集成的内涵、实施信息系统集成的三种模式及其利弊、适用场合。 | Zeng Huashen College of Computer & Comun Engi ,Southwest Jiaotong Univ.,Sichuan·Chengdu 610031 | 1997 | 计算机应用1997，17，2： | 32 |
| 2 | SOME FEATURES OF CARBON CYCLES IN KARST SYSTEM AND THE IMPLICATION FOR EPIKARSTIFICATION —An Example of Yaji Karst Experimental Site in Guilin,China显示文摘The carbon pools of biomass,littering,and SOC wre studied with regards to carbon cycles in epikarst zone,taking an example of Yaji Karst Experiemnt Site in Guilin.This study was focused on SOC and its lability,SOC decomposition rate,CO 2 regime in the soils. 13 ctracing was used to persua the relation of bicarbonate in karst water to soil carbon.The results indicated sufficient carbon pool in SOC for the driveing CO 2 in the karst system.It was revealed that about 60percent of carbon in epi-karst springs resulted from SOC during spring and summer.Thus,the CO 2,driving the karstification,was not simply due to adsorption of atmospheric CO 2 but due to carbon transfer through the pathway of air-plant-soil-water.The driving force should not be overlooked for the epi-karst formation by soil as an interface of carbon environmental geochemistry. | Pan Genxing Tao Yuxiang Shun Yuhua Teng Yongzhong Han Fushun College of Resource & Environment Science,Nanjing Agricultural Univ.,Nanjing, 210095 People’s Republic of China | 1997 | Journal of Geographical Sciences1997，7，3： | 15 |
| 3 | The definition of effective emissivity of land surface at the scale of remote sensing pixels显示文摘Remote sensing (RS) of land surface temperature (LST) is a very challenging problem at the present development stage of RS science. Tremendous efforts have been devoted to atmosphere correction and temperature emissivity separation (TES) of new LST product algorithms. However, the mechanism of directionality of thermal emission from land surface remains unknown, and even worse, there are confusions on the definition of the effective emissivity of land surface at the scale of RS pixels. The mechanism of directionality of thermal emission | LI Xiaowen and WANG Jindi Research Center for Remote Sensing and GIS, Beijing Normal Unirersity, Keying 100875, China Center for Remote Sensing, Boston Univ. , MA02215, USA | 1999 | Chinese Science Bulletin1999，44，23： | 14 |
| 4 | Data processing of small samples based on grey distance information approach显示文摘Data processing of small samples is an important and valuable research problem in the electronic equipment test. Because it is difficult and complex to determine the probability distribution of small samples, it is difficult to use the traditional probability theory to process the samples and assess the degree of uncertainty. Using the grey relational theory and the norm theory, the grey distance information approach, which is based on the grey distance information quantity of a sample and the average grey distance information quantity of the samples, is proposed in this article. The definitions of the grey distance information quantity of a sample and the average grey distance information quantity of the samples, with their characteristics and algorithms, are introduced. The correlative problems, including the algorithm of estimated value, the standard deviation, and the acceptance and rejection criteria of the samples and estimated results, are also proposed. Moreover, the information whitening ratio is introduced to select the weight algorithm and to compare the different samples. Several examples are given to demonstrate the application of the proposed approach. The examples show that the proposed approach, which has no demand for the probability distribution of small samples, is feasible and effective. | Ke Hongfa, Chen Yongguang & Liu Yi 1. Coll. of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, P. R. China 2. Unit 63880, Luoyang 471003, P. R. China | 2007 | Journal of Systems Engineering and Electronics2007，18，2： | 13 |
| 5 | AN EXISTENCE THEOREM OF POSITIVE SOLUTIONS FOR ELASTIC BEAM EQUATION WITH BOTH FIXED END-POINTS显示文摘By using the degree theory on cone an existence theorem of positive solution for a class of fourth-order two-point BVP’s is obtained. This class of BVP’s usually describes the deformation of the elastic beam with both fixed end-points. | Jiang Xiufen Yao Qingliuof Math., Northwest Normal Univ., Lanzhou 730070. | 2001 | Applied Mathematics(A Journal of Chinese Universities)2001，16，3： | 12 |
| 6 | MAJOR-EFFICIENT SOLUTIONS AND WEAKLY MAJOR-EFFICIENT SOLUTIONS OF MULTIOBJECTIVE PROGRAMMING显示文摘MAJOR-EFFICIENTSOLUTIONSANDWEAKLYMAJOR-EFFICIENTSOLUTIONSOFMULTIOBJECTIVEPROGRAMMING￥HUYUDA(Dept.ofAppl.Math.,ShanghaiJiaoTon... | HU YUDA(Dept.of Appl.Math.,Shanghai Jiao Tony Univ.,Shanghai 200030) | 1994 | Applied Mathematics(A Journal of Chinese Universities)1994，9，1： | 12 |
| 7 | STABILITY OF BIDIRECTIONAL ASSOCIATIVE MEMORY NEURAL NETWORKS WITH DELAYS显示文摘In this paper the globally asymptotic stability of more general two-layer nonlinear feedback associative memory neural networks with time delays is examined. The sufficient conditions of existence, uniqueness and globally asymptotic stability of the equilibrum position are given. Finally, two interesting examples to illustrate the theory are given. | Liao Xiaoxin(Dept. of Auto. Control. Huazhong Univ. of Science & Technology, Wuhan 430074)Liao Yang(Dept. of Computer Science, Nanjing University, Nanjing 210093)Liao Yu (Wuhan Soundy Science & Commerce Company, Wuhan 430070) | 1998 | Journal of Electronics(China)1998，15，4： | 11 |
| 8 | New adaptive quasi-sliding mode control for nonlinear discrete-time systems显示文摘A new adaptive quasi-sliding mode control algorithm is developed for a class of nonlinear discrete-time systems, which is especially useful for nonlinear systems with vaguely known dynamics. This design is model-free, and is based directly on pseudo-partial-derivatives derived on-line from the input and output information of the system using an improved recursive projection type of identification algorithm. The theoretical analysis and simulation results show that the adaptive quasi-sliding mode control system is stable and convergent. | Wang Weihong1,2 & Hou Zhongsheng3 1. School of Tra?c and Transportation, Beijing Jiaotong Univ., Beijing 100044, P. R. China 2. Dept. of Automation, Taiyuan Univ. of Science & Technology, Taiyuan 030024, P. R. China 3. Advanced Control Systems Lab, School of Electronics and Information Engineering, Beijing Jiaotong Univ., Beijing 100044, P. R. China | 2008 | Journal of Systems Engineering and Electronics2008，19，1： | 11 |
| 9 | SOME DIAGNOSTICS IN NONLINEAR REPRODUCTIVE DISPERSION MODELS显示文摘This article discusses the problem of the detection of influential cases in nonlinear reproductive dispersion models (NRDM). A diagnostic based on case\|deletion approach in estimating equations is proposed. The relationships between the generalized leverage defined by Wei et al. in 1998, statistical curvature, and the local influence of the response vector perturbations are investigated in NRDM. Two numerical examples are given to illustrate the results. | Tang Niansheng 1,2 \ Wei Bocheng 1\ Wang Xueren 21 Dept. ofAppl.Math., SoutheastUniv.,Nanjing 210096.2 Adult Education College,Yunnan Univ.,Kunm ing 650091. | 2000 | Applied Mathematics(A Journal of Chinese Universities)2000，15，1： | 9 |
| 10 | DESIGN AND ANALYSIS FOR NEW DISCRETE TRACKING-DIFFERENTIATORS显示文摘In this paper,some kinds of linear and nonlinear tracking-differentiators are designed by using suitable exponent functions instead of switch functions,and the stability of these tracking-differentiators is proved.From the result of simulations,it is manifest that the tracking speeds of these kinds of linear and nonlinear tracking-differentiators are very high,and their design procedures are simple. | Wang Xinhua Chen Zengqiang Yuan ZhuzhiDept. of Automation,Nankai Univ.,Tianjin 300071,China. | 2003 | Applied Mathematics(A Journal of Chinese Universities)2003，18，2： | 9 |
| 11 | PRECISE RATE IN THE LAW OF ITERATED LOGARITHM FOR ρ-MIXING SEQUENCE显示文摘Let {X,X n;n≥1} be a strictly stationary sequence of ρ-mixing random variables with mean zero and finite variance. Set S n=n k=1X k,M n=max k≤n|S k|,n≥1. Suppose lim n→∞ES2 n/n=∶σ2>0 and ∞n=1ρ 2/d(2n)<∞, where d=2,if -12(b+1),if b≥0. It is proved that,for any b>-1, limε0ε 2(b+1)∞n=1(loglogn)bnlognP{M n≥εσ2nloglogn}= 2(b+1)πГ(b+3/2)∞k=0(-1)k(2k+1) 2b+2,where Г(·) is a Gamma function. | Huang Wei Zhang Lixin Jiang YeDept.of Math.,Zhejiang Univ.,Hangzhou 310028,China. | 2003 | Applied Mathematics(A Journal of Chinese Universities)2003，18，4： | 8 |
| 12 | THE SINGULARLY PERTURBED NONLINEAR BOUNDARY VALUE PROBLEMS显示文摘The singularly perturbed nonlinear boundary value problems are considered.Using the stretched variable and the method of boundary layer correction,the formal asymptotic expansion of solution is obtained.And then the uniform validity of solution is proved by using the differential inequalities. | Mo JiaqiDept.of Math.,Anhui Normal Univ.,Wuhu 241000. | 2000 | Applied Mathematics(A Journal of Chinese Universities)2000，15，4： | 8 |
| 13 | A SIMPLIFIED BRAUER'S THEOREM ON MATRIX EIGENVALUES显示文摘Let A= (aij)∈Cn×n and ri = ∑ j≠i|aij|. Suppose thatforeach row of A there isatleastonenonzero off-diagonalentry. Itis proved thatalleigenvalues ofAarecontained in Ω~= ∪aij≠0,i≠j{z∈C:|z- aii||z- ajj|≤rirj}. The resultre- duces the num berofovals in originalBrauer’stheorem in m any cases. Eigenval- ues(and associated eigenvectors) thatlocate in theboundary ofΩ~ arediscussed. | LiLuoluo Dept.ofScientific Com puting and Com puter Applications, Mathem atics and Com putation College, Zhong- shan Univ., Guangzhou 510275. | 1999 | Applied Mathematics(A Journal of Chinese Universities)1999，14，3： | 8 |
| 14 | EXACT SOLUTIONS FOR GENERAL VARIABLE-COEFFICIENT KdV EQUATION显示文摘By asing the nonclassical method of symmetry reductions, the exact solutions for general variable coefficient KdV equation with dissipative loss and nonuniformity terms are obtained. When the dissipative loss and nonuniformity terms don’t exist, the multisoliton solutions are found and the corresponding Painleve II type equation for the variable coefficient KdV equation is given. | Liu Xiqiang Jiang SongGraduate School, China Academy of Engineering and Physics, P.O. Box 2101, Beijing 100088 Dept. of Math., Liaocheng Teachers Univ., Shandong 252000. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beiji | 2001 | Applied Mathematics(A Journal of Chinese Universities)2001，16，4： | 8 |
| 15 | FAST RECURSIVE LEAST SQUARES LEARNING ALGORITHM FOR PRINCIPAL COMPONENT ANALYSIS显示文摘Based on the least-square minimization a computationally efficient learning algorithm for the Principal Component Analysis(PCA) is derived. The dual learning rate parameters are adaptively introduced to make the proposed algorithm providing the capability of the fast convergence and high accuracy for extracting all the principal components. It is shown that all the information needed for PCA can be completely represented by the unnormalized weight vector which is updated based only on the corresponding neuron input-output product. The convergence performance of the proposed algorithm is briefly analyzed.The relation between Oja’s rule and the least squares learning rule is also established. Finally, a simulation example is given to illustrate the effectiveness of this algorithm for PCA. | Ouyang Shan Bao Zheng Liao Guisheng(Guilin Institute of Electronic Technology, Guilin 541004)(Key Laboratory of Radar Signal Processing, Xidian Univ., Xi’an 710071) | 2000 | Journal of Electronics(China)2000，17，3： | 8 |
| 16 | ITERATIVE APPROXIMATION OF FIXED POINTS OF (ASYMPTOTICALLY) NONEXPANSIVE MAPPINGS显示文摘Let E be a uniformly convex Banach space which satisfies Opial’s condition or has a Frechet differentiable norm,and C be a bounded closed convex subset of E. If T∶C→C is (asymptotically)nonexpansive,then the modified Ishikawa iteration process defined byx n+1 =t nT ns nT nx n+1-s nx n+(1-t n)x n,converges weakly to a fixed point of T ,where {t n} and {s n} are sequences in [0,1] with some restrictions. | Zeng LuchuanDept. of Math.,Shanghai Normal Univ.,Shanghai 200234. | 2001 | Applied Mathematics(A Journal of Chinese Universities)2001，16，4： | 8 |
| 17 | REFLECTIVE FUNCTION AND PERIODIC SOLUTION OF DIFFERENTIAL SYSTEMS显示文摘This article deals with the reflective function of the mth-order nonlinear differential systems.The results are applied to discussing the stability property of periodic solutions of these systems. | Zhou ZhengxinDept.of Math.,College of Science,Yangzhou Univ.,Yangzhou 225002. | 2002 | Applied Mathematics(A Journal of Chinese Universities)2002，17，1： | 7 |
| 18 | Research on fiber optic gyro signal de-noising based on wavelet packet soft-threshold显示文摘Gyro's drift is not only the main drift error which influences gyro's precision but also the primary factor that affects gyro's reliability.Reducing zero drift and random drift is a key problem to the output of a gyro signal.A three-layer de-nosing threshold algorithm is proposed based on the wavelet decomposition to dispose the signal which is collected from a running fiber optic gyro(FOG).The coefficients are obtained from the three-layer wavelet packet decomposition.By setting the high frequency part which is greater than wavelet packet threshold as zero,then reconstructing the nodes which have been filtered out noise and interruption,the soft threshold function is constructed by the coefficients of the third nodes.Compared wavelet packet de-noise with forced de-noising method, the proposed method is more effective.Simulation results show that the random drift compensation is enhanced by 13.1%,and reduces zero drift by 0.052 6°/h. | Qian Huaming & Ma Jichen Coll.of Automation,Harbin Engineering Univ.,Harbin 150001,P.R.China | 2009 | Journal of Systems Engineering and Electronics2009，20，3： | 7 |
| 19 | EXACT SOLUTIONS OF SOME FIFTH-ORDER NONLINEAR EQUATIONS显示文摘To solve the nonlinear partial differential equations is changed into solving some algebraic equations by using the function U to be expressed as linear independent functions. The new soliton and periodic solutions of some fifth\|order nonlinear partial differential equations are obtained. | Liu Xiqiang\ Bai ChenglinInstitute of Appl.Phys. and Com putational Mathem atics,PO Box 2101,Beijing 100088 Dept.of Math.,Liaocheng Teachers Univ.,Liaocheng 252059.Dept. of Com m unication Engineering,Liaocheng Teachers Univ.,Liao cheng 252059. | 2000 | Applied Mathematics(A Journal of Chinese Universities)2000，15，1： | 7 |
| 20 | EXTREMAL SOLUTIONS OF TERMINAL VALUE PROBLEMS FOR NONLINEAR IMPULSIVE INTEGRO-DIFFERENTIAL EQUATIONS IN BANACH SPACES显示文摘The comparison principle is first established,and then the lower and upper solution method and the monotone iterative technique are employed to the study of terminal value problems for the first order nonlinear impulsive integro\|differential equations in Banach spaces.Finally,the existence theorem on the maximal and minimal solutions is obtained. | Qi ShishuoDept. of Math.,Shandong Univ.,Jinan 250100. | 2000 | Applied Mathematics(A Journal of Chinese Universities)2000，15，1： | 6 |
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