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山西师大学报(社会科学版) 2001年第2期28卷 17-22页

作者：韩震北京师范大学哲学系! 北京 100875

对于德国浪漫主义者来说，艺术是精神活动的最高形式，它超越于知性和理性之上。既然人是一种能进行感觉、体验和思维的统一整体，而艺术能够适应人的这种整体性和统一性。因此，在审美和创作活动之中，最能够体现人的自由本性。

关键词：浪漫主义自由人性审美

FOREcastING china'S FOREIGN TRADE VOLUME WITH A KERNEL-BASED HYBRID ECONOMETRIC-AI ENSEMBLE LEARNING APPROACH

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Journal of Systems Science & Complexity 2008年第1期21卷 1-19页

作者： Lean YU Shouyang WANG Kin Keung LAI Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China. department of Management Sciences City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong China.

Due to the complexity of economic system and the interactive effects between all kinds of economic variables and foreign trade, it is not easy to predict foreign trade volume. However, the difficulty in predicting foreign trade volume is usually attributed to the limitation of many conventional forecasting models. To improve the prediction performance, the study proposes a novel kernel-based ensemble learning approach hybridizing econometric models and artificial intelligence (AI) models to predict china's foreign trade volume. In the proposed approach, an important econometric model, the co-integration-based error correction vector auto-regression (EC-VAR) model is first used to capture the impacts of all kinds of economic variables on Chinese foreign trade from a multivariate linear anal- ysis perspective. Then an artificial neural network (ANN) based EC-VAR model is used to capture the nonlinear effects of economic variables on foreign trade from the nonlinear viewpoint. Subsequently, for incorporating the effects of irregular events on foreign trade, the text mining and expert's judgmental adjustments are also integrated into the nonlinear ANN-based EC-VAR model. Finally, all kinds of economic variables, the outputs of linear and nonlinear EC-VAR models and judgmental adjustment model are used as input variables of a typical kernel-based support vector regression (SVR) for en- semble prediction purpose. For illustration, the proposed kernel-based ensemble learning methodology hybridizing econometric techniques and AI methods is applied to china's foreign trade volume predic- tion problem. Experimental results reveal that the hybrid econometric-AI ensemble learning approach can significantly improve the prediction performance over other linear and nonlinear models listed in this study.

关键词： Artificial neural networks error-correction vector auto-regression foreign trade prediction hybrid ensemble learning kernel-based method support vector regression.

Intelligent Co-ordinate Control for Mating Process of Underwater Vehicle Based on TFPN

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哈尔滨工程大学学报（英文版） 2002年第2期1卷 23-27页

作者： YAN Zhe-ping ,DAI Xue-feng ,BIAN Xin-qian1. department of Mechanical and Electrical engineering, Harbin Institute of Technology, Harbin 150001, china 2. College of Power and Nuclear engineering, Harbin engineering University, Harbin 150001, china Harbin Institute of Technology Department of Mechanical and Electrical Engineering Harbin China (GRID:grid.19373.3f) (ISNI:***) Harbin engineering University College of Power and Nuclear Engineering Harbin China (GRID:grid.33764.35) (ISNI:***)

In order to reduce time and improve the probability of successful matting it is useful to co-ordinate between the movement control and mating process of the underwater vehicle. Because it is hard to control with the common method under the condition of mating process, the hierarchical intelligent control is introduced. Timed fuzzy Petri net (TFPN), which is the integration of PN and fuzzy reasoning, is used in the design of coordinate level of hierarchically intelligent control. It made the control process better in reflecting the characteristics of time-driven, event-driven, fuzzy information and so on. The test shows that TFPN could shorten the time of mating and enhance the efficiency.

关键词： underwater vehicle mating timed fuzzy Petri net

Decomposition of almost Poisson structure of non-self-adjoint dynamical systems

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中国科学:技术科学 2010年第3期 345-345页

作者： GUO YongXin1,LIU Chang2,LIU ShiXing1,2 & CHANG Peng1 1 College of Physics,Liaoning University,Shenyang 110036,china 2.department of Applied Mechanics,beijing Institute of Technology,beijing 100081,china

Non-self-adjoint dynamical systems,e.g.,nonholonomic systems,can admit an almost Poisson structure,which is formulated by a kind of Poisson bracket satisfying the usual properties except for the Jacobi identity.A general theory of the almost Poisson structure is investigated based on a decomposition of the bracket into a sum of a Poisson one and an almost Poisson *** corresponding relation between Poisson structure and symplectic structure is proved,making use of Jacobiizer and *** on analysis of pseudo-symplectic structure of constraint submanifold of Chaplygin's nonholonomic systems,an almost Poisson bracket for the systems is constructed and decomposed into a sum of a canonical Poisson one and an almost Poisson ***,an almost Poisson structure,which can be decomposed into a sum of canonical one and an almost "Lie-Poisson" one,is also constructed on an affine space with torsion whose autoparallels are utilized to describe the free motion of some non-self-adjoint *** decomposition of the almost Poisson bracket directly leads to a decomposition of a dynamical vector field into a sum of usual Hamiltionian vector field and an almost Hamiltonian one,which is useful to simplifying the integration of vector fields.

关键词： almost-Poisson structure non-self-adjointness nonholonomic systems symplectic form Jacobi identity torsion

Optimal error bound of restricted Monte Carlo integration on anisotropic Sobolev classes

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Progress in Natural Science:Materials International 2006年第6期16卷 588-593页

作者： GAO Wenhua, YE Peixin and WANG Hui (College of Mathematics and System Sciences, Xinjiang University, Urumqi 830046, china School of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, china department of Mathematics, Ily Teachers' College, Yining 835000, china College of Science, Hehai University, Nanjing 210098, china) [a]College of Mathematics and System Sciences Xinjiang University Urumqi China [b]School of Mathematical Sciences and LPMC Nankai University Tianjin China [c]department of Mathematics Ily Teachers College Yining China [d]College of Science Hehai University Nanjing China

We study the restricted Monte Carlo integration error for anisotropic Sobolev classes. Results prove that with O(log2 n) random bits we have the optimal order for the n-th minimal Monte Carlo integration error with ar... 详细信息

关键词： Monte Carlo integration random bits anisotropic Sobolev classes.

Forage, crop and tree residues integrated with herbivore production in some Asian regions

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Expression of vascular endothelial growth factor and its role in oncogenesis of human gastric carcinoma

第七届草食动物营养国际学术研讨会

作者： Q.X.Meng~(1*) D.X.Lu~2 J.X.Liu~3 X.X.Wang~4 L.P.Ren~1 ~1 College of Animal Science and Technology china Agricultural University beijing 100094 china ~2 Inner Mongolian Academy of Animal Science Inner Mongolian Hohhot 010030 china ~3 College of Animal Science Zhejiang University Hangzhou 310029 china ~4 department of Animal Science and Veterinary Medicine beijing University of Agriculture beijing 102206 china

＜正＞In this review paper,forage,crop and tree cropping integrated with herbivore industry in agro-forestry systems of Asian countries is critically *** most Asian developing countries,herbivore production accounts for the leading position in overall livestock *** feed their herbivores mainly by locally available feed resources,such as natural tree leaves（oil palm fronds, shrubs shoot）,forages and by-products or residues from vegetables or crops （rice,maize,wheat,sorghum,etc.）.Thus,several integration farming systems, covering various ecological and environmental conditions in Asian regions,are naturally formed,including the integration system using crop residues as fibrous feeds in china,the agro-by-products-buffaloes system in Vietnam,the shrub-livestock system in northern dry lands of china,the oil palm-ruminant system in Malaysia,and the herbivore-coconut plantation system in northern Asian *** major components,technical structure,effectiveness of the system accomplishment and the future perspectives,are also discussed.

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World Journal of Gastroenterology 2001年第4期7卷 500-505页

作者： Du-Hu Liu Xue-Yong Zhang Dai-Ming Fan Yu-Xin Huang Jin-Shan Zhang Wei-Quan Huang Yuan-Qiang Zhang Qing-Sheng Huang Wen-Yu Ma Yu-Bo Chai Ming Jin Institute of Digestive Disease,Xijing Hospital,~2.department of Gastroenterology,Tangdu Hospital,~3department of Histology and Embryology,~4 department of Microbiology,~5 department of Biochemistry,Fourth Military Medical University,Xi’an 710033,Shaanxi Province,china Institute of Combined Injury Third Military Medical University Chongqing 400038 China. liuduhu@***

AIM: To establish the role of vascular endothelial growth factor (VEGF) in the oncogenesis of human gastric carcinoma more directly. METHODS: The expression of VEGF and its receptor kinase-domain insert containing receptor (KDR) in human gastric cancer tissue were observed by immunohistochemical staining. VEGF levels were manipulated in human gastric cancer cell using eukaryotic expression constructs designed to express the complete VEGF(165) complimentary DNA in either the sense or antisense orientation. The biological changes of the cells were observed in which VEGF was up-regulated or down-regulated. RESULTS: VEGF-positive rate was 50%, and VEGF was mainly localized in the cytoplasm and membrane of the tumor cells, while KDR was mainly located in the membrane of vascular endothelial cells in gastric cancer tissues and peri-cancerous tissue. In 2 cases of 50 specimens, the gastric cancer cells expressed KDR, localized in both the cytoplasm and membrane. Introduction of VEGF(165) antisense into human gastric cancer cells (SGC-7901, immunofluorescence intensity, 31.6%)) resulted in a significant reduction in VEGF-specific messenger RNA and total and cell surface VEGF protein (immunofluorescence intensity, 8.9%) (Pintegration of VEGF(165) in the sense orientation resulted in an increase in cellular and cell surface VEGF (immunofluorescence intensity, 75.4%) (P2.88 mm3), whereas up-regulation of VEGF resulted in increased xenografted tumor size (at 33 days postimplantation, tumor volume: 2350.50 +/- 637.70 mm3) (P<0.05 vs control SGC-7901 group). CONCLUSION: This study provides direct evidence that VEGF plays an important role in the oncogenesis of human gastric cancer.

关键词： Gene Expression Regulation, Neoplastic Adult Aged Animals Cell Division Cloning, Molecular DNA, Antisense DNA, Complementary Endothelial Growth Factors Endothelium, Vascular Female Humans Lymphokines Male Mice Mice, Nude Middle Aged Neovascularization, Pathologic Receptor Protein-Tyrosine Kinases Receptors, Growth Factor Receptors, Vascular Endothelial Growth Factor Stomach Neoplasms Transfection Tumor Cells, Cultured Vascular Endothelial Growth Factor A Vascular Endothelial Growth Factors

Analysis of Numerical integration Error for Bessel Integral Identity in Fast Multipole Method for 2D Helmholtz Equation

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Journal of Shanghai Jiaotong university(Science) 2010年第6期15卷 690-693页

作者：吴海军蒋伟康刘轶军 State Key Laboratory of Machinery System and Vibration Shanghai Jiaotong University department of Mechanical engineering University of Cincinnati

In 2D fast multipole method for scattering problems,square quadrature rule is used to discretize the Bessel integral identity for diagonal expansion of 2D Helmholtz kernel,and numerical integration error is introduced. Taking advantage of the relationship between Euler-Maclaurin formula and trapezoidal quadrature rule,and the relationship between trapezoidal and square quadrature rule,sharp computable bound with analytical form on the error of numerical integration of Bessel integral identity by square quadrature rule is derived in this paper. Numerical experiments are presented at the end to demonstrate the accuracy of the sharp computable bound on the numerical integration error.

关键词： Bessel integralidentity fast multipole method boundary element method 2D Helmholtz equation

非线性流固耦合问题的ALE分步有限元数值方法

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力学季刊 2001年第1期22卷 34-39页

作者：岳宝增刘延柱王照林上海交通大学工程力学系上海200030 清华大学工程力学系北京100084

推导了一种基于ALE(Arbitrary Lagrangian-Eulerian,即任意的拉格朗日-欧拉)描述下的带有自由液面不可压液体与运动结构非线性耦合问题的一种有限元数值计算方法。在时间域上采用分步格式计算,这种方法与混合插值方法比较其优点是速度... 详细信息

推导了一种基于ALE(Arbitrary Lagrangian-Eulerian,即任意的拉格朗日-欧拉)描述下的带有自由液面不可压液体与运动结构非线性耦合问题的一种有限元数值计算方法。在时间域上采用分步格式计算,这种方法与混合插值方法比较其优点是速度和压力可使用同阶线性插值,给数值计算带来很大方便。将所得到的方法应用到结构与TLD(调谐式液体阻尼器)装置之间的耦合问题,数值计算结果验证了本文所推导的方法。

关键词： Navier-Stokes方程 ALE有限元法数值模拟非线性流固耦合问题