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| 1 | Lie bialgebras of generalized Witt type显示文摘In this paper, all Lie bialgebra structures on the Lie algebras of generalized Witt type are considered. It is proved that, for any Lie algebra W of generalized Witt type, all Lie bialgebras on W are the coboundary triangular Lie bialgebras. As a by-product, it is also proved that the first cohomology group H1(W, W (x) W) is trivial. | SONG Guang’ai & SU Yucai College of Mathematics and Information Science, Shandong Institute of Business and Technology, Yantai 264005, China Department of Mathematics, University of Science and Technology of China, Hefei 230026, China Department of Mathematics, Shanghai Jiaotong University, Shanghai 200240, China | 2006 | Science China Mathematics2006，49，4： | 22 |
| 2 | Regional differences and determinants of built-up area expansion in China显示文摘Based on remote sensing data on land use provided by the Chinese Academy of Sciences and socio-economic data collected by the authors,this paper analyzes the trends and regional differences in built-up area(BUA) expansion in China from the late 1980s to 2000,and empirically estimates the major determinants of BUA expansion in different regions in 1996―2000.In 1989―2000,although China's overall BUA expansion accelerated,the trends differed significantly among regions.BUA expansion in the central and western regions accelerated significantly,but it slowed down considerably in the east-ern region.The estimation results from our econometric analysis reveal that BUA expansion in the eastern region reached a period when economic growth had no further significant impact on per capita BUA,the land utilization in this region has become more intensive with further expansion of the economy.In the central and western regions,the BUA has expanded remarkably due to the relatively more flexible land development policies and the relatively cheap land prices.Therefore,as the econ-omy continues to grow rapidly,policies relating to BUA expansion and cultivated land reductions may face more serious challenges in the central and western regions. | HUANG JiKun1,2,ZHU LiFen3,1 & DENG XiangZheng1,2 1 Center for Chinese Agricultural Policy,Chinese Academy of Sciences,Beijing 100101,China 2 Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China 3 Research Center of the Economy of the Upper Reaches of the Yangtze River,Chongqing Technology and Business University,Chongqing 400067,China | 2007 | Science China Earth Sciences2007，50，12： | 17 |
| 3 | THE EXISTENCE OF SOLUTIONS OF NONLINEAR BOUNDARY VALUE PROBLEMS INVOLVING THE p-LAPLACIAN OPERATOR IN L^s-SPACES显示文摘由在卡尔弗特和 Gupta 的非线性的 accretivemappings 的范围的和上使用不安理论,我们在答案 u ∈L ~ S 的存在上学习抽象结果(包含p拉普拉斯算符操作员的非线性的边界价值问题的Ω),在此 2 ≤ s ≤ +∞,并且( 2N )/( N+1 )< p ≤ 2 为 N (≥ 1 )它表示 R^N 的尺寸。获得结果,一些新技术在这篇论文被使用。在这里的这篇论文和我们的方法讨论的方程是扩展和补充到 L. 魏和 Z. 的相应结果他。 | WEI Li (School of Mathematics and Statistics, Hebei University of Economics and Business, Shijiazhuang 050061, China Institute of Applied Mathematics and Mechanics, Ordnance Engineering College, Shijiazhuang 050003, China. ZHOU Haiyun (Institute of Applied Mathematics and Mechanics, Ordnance Engineering College, Shijiazhuang 050003, China Institute of Mathematics and Information Science, Hebei Normal University, Shijiazhuang 050016, China. | 2005 | Journal of Systems Science & Complexity2005，18，4： | 17 |
| 4 | USING DISPLACED CONE REPRESENTATION IN DEA MODELS FOR NONDOMINATED SOLUTIONSIN MULTIOBJECTIVE PROGRAMMING显示文摘Concepts revolving around 'displaced cones' are used to extend the ideas of nondominated solutions in multiobjective programming. Necessary and sufficient conditions are formed around the additive models of DEA to idelltify nondominated solutions. This provdes a basis for effecting contacts with other disciplines and other parts of DEA. | W. W. Cooper (Graduate School Of Business, University of Texas at Austin, Austin, Texas, USA 78712-1174)WEI Quanling (Department of Information Management, People’s University of China, Beliing 100872, China) G. Yu (Department of MSIS, University of Texas | 1997 | Systems Science and Mathematical Sciences1997，10，1： | 17 |
| 5 | Arsenic trioxide promotes mitochondrial DNA mutation and cell apoptosis in primary APL cells and NB4 cell lines显示文摘This study aimed to investigate the effects of arsenic trioxide(As2O3) on the mitochondrial DNA(mtDNA) of acute promyelocytic leukemia(APL) cells.The NB4 cell line was treated with 2.0 μmol/L As2O3 in vitro,and the primary APL cells were treated with 2.0 μmol/L As2O3 in vitro and 0.16 mg kg-1 d-1 As2O3 in vivo.The mitochondrial DNA of all the cells above was amplified by PCR,directly sequenced and analyzed by Sequence Navigatore and Factura software.The apoptosis rates were assayed by flow cytometry.Mitochondrial DNA mutation in the D-loop region was found in NB4 and APL cells before As2O3 use,but the mutation spots were remarkably increased after As2O3 treatment,which was positively correlated to the rates of cellular apoptosis,the correlation coefficient:rNB4-As2O3=0.973818,and rAPL-As2O3=0.934703.The mutation types include transition,transversion,codon insertion or deletion,and the mutation spots in all samples were not constant and regular.It is revealed that As2O3 aggravates mtDNA mutation in the D-loop region of acute promyelocytic leukemia cells both in vitro and in vivo.Mitochondrial DNA might be one of the targets of As2O3 in APL treatment. | MENG Ran1,ZHOU Jin2,SUI Meng3,LI ZhiYong4,FENG GuoSheng1 & YANG BaoFeng2 1 Division of Neurology,the Ninth Clinical Medical College of Beijing University(Shijitan Hospital),Beijing 100038,China 2 The First Hospital of Harbin Medical University,Harbin 150001,China 3 Management Information System,University of International Business and Economics,Beijing 100029,China 4 Department of Radiology,Cambridge University Hospitals NHS Foundation Trust Box 219 Level 5,Addenbrooke’s Hospital Cambridge CB2 0QQ,UK | 2010 | Science China(Life Sciences)2010，53，1： | 10 |
| 6 | Housing Wealth, Financial Wealth and Consumption in China显示文摘纸在城市的中国在财产财富和家庭消费的趋势运动调查在变化之间的关系。用向量错误修正 cointegration 模型,我们证明在城市的中国在家庭消费,可处理的收入,金融财富和住房财富之间有一种唯一的长期间 cointegrating 关系。当 cointegrated 系统被外部震动扰乱时,我们发现住房财富是恢复长期间平衡关系的唯一的因素。另外,我们的永久临时的变化分解分析都显示那在消费的运动的变化是永久的,支持消费行为的古典随机的散步假设。然而,在住房财富的短期的运动的变化的一个大比例被发现临时。 | Jie Chen Feng Guo Aiyong Zhu Associate Professor,School of Management,Fudan University,Shanghai,China. Senior Research Economist and Economics Lecturer,Haile/US Bank College of Business,Northern Kentucky University,Highland Heights,USA. Master Student,School of Economics,Fudan University,Shanghai,China. | 2009 | China & World Economy2009，17，3： | 10 |
| 7 | Hamiltonian type Lie bialgebras显示文摘We first prove that,for any generalized Hamiltonian type Lie algebra H,the first co- homology group H^1(H,H(?)H) is trivial.We then show that all Lie bialgebra structures on H are triangular. | Bin XIN~(1+) Guang-ai SONG~2 Yu-cai SU~3 1 Department of Mathematics,Shanghai Jiao Tong University,Shanghai 200240,China 2 College of Mathematics and Information Science,Shandong Institute of Business and Technology,Yantai 264005,China 3 Department of Mathematics,University of Science and Technology of China,Hefei 230026,China | 2007 | Science China Mathematics2007，50，9： | 8 |
| 8 | The Discussion on the Interaction and Integration of Modern Agriculture and Rural Tourism Sustainable Development显示文摘The thesis summarizes the connotation of rural tourism and divides it into six types,including rural sight-seeing,rural body-building activity,rural folk culture,rural experience of farm work,rural business affairs,and study and development.It outlines the theory of sustainable development of rural tourism and points out that what sustainable development of tourism concerns is the coordination of ecology,economy,and society centering on human and nature.On the basis of introducing the connotation of modern agriculture,it divides modern agriculture into six types,including sightseeing agriculture,leisure agriculture,green agriculture,characteristic agriculture,factory agriculture,and three-dimensional agriculture.And by concluding,it obtains the combination model of modern agriculture and rural tourism.Based on the introduction of the above related theories,the thesis discusses the interaction and integration model of the sustainable development of modern agriculture and rural tourism.It emphatically analyzes the integration model of modern agriculture and rural tourism,including pastoral agriculture tourism model(sightseeing village,leisure farm,citizen farm),and science education tourism model(agricultural science and technology education base,tourism and leisure education agricultural park,children's,agricultural education base,agricultural exposition).Based on the interaction and integration relationship between modern agriculture and rural tourism,the thesis puts forward corresponding countermeasures so as to promote their positive development and realize the maximum of ecological,social and economic benefits. | XIAO Xiao1,SONG Peng2 1.School of Business,Chengdu University of Technology,Chengdu 610059,China 2.College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China | 2010 | Asian Agricultural Research2010，2，5： | 7 |
| 9 | Interactive early warning technique based on SVDD显示文摘After reviewing current researches on early warning,it is found that 'bad' data of some systems is not easy to obtain,which makes methods proposed by these researches unsuitable for monitored systems.An interactive early warning technique based on SVDD (support vector data description) is proposed to adopt'good'data as samples to overcome the difficulty in obtaining the'bad'data.The process consists of two parts:(1)A hypersphere is fitted on'good'data using SVDD.If the data object are outside the hypersphere,it would be taken as'suspicious';(2) A group of experts would decide whether the suspicious data is'bad'or'good',early warning messages would be issued according to the decisions.And the detailed process of implementation is proposed.At last,an experiment based on data of a macroeconomic system is conducted to verify the proposed technique. | Lin Jian~(1,2) Peng Minjing~(1,2) 1.School of Business Administration,South China Univ.of Technology,Guangzhou 510641,F.R.China 2.Systems Science & Technology Inst,Wuyi Univ.,Jiangmen 529020,P.R.China | 2007 | Journal of Systems Engineering and Electronics2007，18，3： | 6 |
| 10 | UV-induced Self-initiated Graft Polymerization of Acrylamide onto Poly(ether ether ketone)显示文摘Photo-grafting of hydrophilic monomer was used to enhance the hydrophilicity of poly(ether ether ketone) (PEEK) with the aim of extending its applications to biological fields. PEEK sheets were surface modified by grafting of acrylamide(AAm) with ultraviolet(UV) irradiation in the presence or absence of benzophenone(BP). The effects of BP, irradiation time and monomer concentration on the surface wettability of PEEK were investigated. Characteriza tion of modified PEEK using scanning electron microscopy(SEM), energy-disperse spectrometer(EDS) and water contact angle measurements shows that AAm was successfully grafted on PEEK surface both in presence and absence of BP. With the increase in irradiation time and monomer concentration, contact angles decrease to as low as 30°, demonstrating a significant improvement of surface hydrophilicity. In agreement with the decrease in contact angle, under identical conditions, the nitrogen concentration increases, suggesting the increase in grafting degree of the grafting polymerization. This investigation demonstrates a self-initiation of PEEK due to its BP-like structure in the backbone of the polymer. Though the graft polymerization proceeds more readily in the presence of BP, the self-initiated graft polymerization is clearly observed. | CHEN Rui-chao, SUN Hui, LI Ang and XU Guo-zhi College of Materials Science and Mechanical Engineering, National Center for Quality Supervision and Test of Plastic Products, Beijing Technology and Business University, Beijing 100048, P. R. China | 2012 | Chemical Research in Chinese Universities2012，28，1： | 6 |
| 11 | Temperature-controlled ionic liquid dispersive liquid phase microextraction combined with ultra-high-pressure liquid chromatography for the rapid determination of triclosan,triclocarban and methyl-triclosan in aqueous samples显示文摘As extraction solvents,ionic liquids have green characteristics.In this study,an environmentally benign analytical method termed temperature-controlled ionic liquid dispersive liquid phase microextraction (TIL-DLME) combined with ultra-highpressure liquid chromatography (UHPLC)-tunable ultraviolet detection (TUV) was developed for the pre-concentration and determination of triclosan (TCS),triclocarban (TCC) and methyl-triclosan (M-TCS) in water samples.Significant parameters that may affect extraction efficiencies were examined and optimized,including the types and amount of ionic liquids,volume of the diluent,heating temperature,cooling time,salt effect and pH value.Under the optimum conditions,linearity of the method was observed in the ranges of 0.0100-100 μgL-1 for TCS and M-TCS,and 0.00500-50.0 μgL-1 for TCC with correlation coefficients (r2) > 0.9903.The limits of detection (LODs) ranged from 1.15 to 5.33 ngL-1.TCS in domestic water and TCC in reclaimed water were detected at the concentrations of 1.01 and 0.126 μgL-1,respectively.The spiked recoveries of the three target compounds in reclaimed water,irrigating water,waste water and domestic water samples were obtained in the ranges of 68.4%-71.9%,61.6%-87.8%,58.9%-74.9% and 64.9%-92.4%,respectively.Compared with the previous dispersive liquid-liquid microextraction method (DLLME) about the determination of TCS,TCC and M-TCS,this method is not only more environmentally friendly but also more sensitive. | GUO JieHong 1,2,LI XingHong 2,CAO XueLi 1,QU Lei 2,3,HOU DeKun 2 & XU XiaoBai 2 1 School of Chemical and Environmental Engineering,Beijing Technology and Business University,Beijing 100048,China 2 State Key Laboratory of Environmental Chemistry and Eco-toxicology Research Center of Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China 3 Zhengzhou University,Zhengzhou 450001,China | 2010 | Science China Chemistry2010，53，12： | 5 |
| 12 | Supply Chain Reorganization and Coordination显示文摘Three generic forms of governance——hierarchy, hybrid and market are proposed in the new institutional economics, giving an abstract description of alternative coordination and control mechanisms for general use. While this theory is known as far away from being operational and specified, a few researchers in the management and organization area are trying to extend Galbraith′ and/or Mintzberg′s organizational design theories into the application of logistical coordination for obtaining a smooth flow of products along the supply chain within and without the focal organization. In this paper, we present an explorative case study on the design of various organizational architectures of logistics activities and their relevant coordination mechanisms, especially internal and external contracts as one new kind of hybrid mechanisms for coordinating effective supply chains. | WANG Feng bin School of Business Administration, Renmin University, Beijing 100872, China | 2001 | Journal of Systems Science and Systems Engineering2001，13，1： | 5 |
| 13 | Reduced analysis and confirmatory research on co-adaptability theoretical solution to conflicting events in construction engineering projects显示文摘The co-adaptability theoretical solution to conflicting events in construction engineering projects has three problems. First, the transformation of constraint conditions of theoretical solution is very difficult in practical engineering applications; second, some coefficients are difficult to be determined; third, there are overfull circular arithmetic operations involved in it. To resolve these problems, a new method to reduce the theoretical solution complications is proposed. By analyzing the operating mechanism of theoretical solution model, redundancies in the theoretical solution can be eliminated, and the ISM mapping with the co-adaptability solution can be set up. Based on this approach, a procedure to solve practical conflicting events in construction projects is established by replacing characteristic variables with mathematic variables. The research results show that the procedure can replace the co-adaptability theoretical solution effectively and solve practical conflicting events in construction projects. | HOU XueLiang1 , LU Mei2 & WANG Kai3 1 School of Business Administration, North China Electric Power University, Beijing 102206, China 2 Department of Construction Management, Tsinghua University, Beijing 100084, China 3 College of Management, Beijing Jiaotong University, Beijing 100084, China | 2010 | Science China(Technological Sciences)2010，53，2： | 5 |
| 14 | Evaluation on the Risks of Agricultural Industrial Chain Based on FAHP——A Case of Regions Inhabited by Ethnic Groups in Wuling Mountain显示文摘Through recognizing the risking factors of industrial chain and selecting appropriate evaluation method, the index system on evaluating risking factors including market risk, natural risk, contact risk and efficiency risk in industrial chain is constructed,26 weighting indicators under the four layers are set up. Taking regions inhabited by ethnic groups in Wuling Mountain as an example, the risking factors of agricultural industrial chain in the area are analyzed by adopting the FAHP. The influencing degree of each risking factor on credit risks is analyzed. The results assume that with the market risk, contract risk, natural risk and efficiency risk. The natural risks become the principal risks of agricultural industrial chain and it should be paid much attention to. The low credit risk is a major factor that causes the contract between enterprise and rural households. The flood, pests, diseases and disasters also should be paid high attention to that is regarded as risking factors. The risking factors that come from the efficiency risk layer, for example, the unequal profit distribution among enterprises has little effect on enterprises in industrial chain. The research results provide evidence for stipulating risk prevention measures. | LI Bin1,2 1. Research Center for Development and Utility of Unique Resources in the Wulingshan Region, Yangtze Normal University, Chongqing 408100, China 2. School of Economics and Business Administration, Chongqing 408100, China | 2011 | Asian Agricultural Research2011，3，8： | 4 |
| 15 | Cointegration Analysis on the Relation between Urbanization and Economic Growth in China显示文摘This paper utilizes cointegration theory,error correcting model and Granger causality testing theory to make an empirical research on the relation between urbanization and GDP in China,and also implements a comparative analysis to the relation between three industries and degree of urbanization,the related coeffecient is 0.97,0.95,0.97,0.97.And the result shows a long-term balance between these two factors,and the promoting effect to tertiary industry by urbanization is more obvious.Urbanization and economic growth are the long-term balanced relations.In the long-term balance,every 1% increment of urbanization can make 4.82% increment of GDP;In short-term balance,if the balance depart from the long-term balance at the i-th term,the model will take automatic reversal adjustment with-0.06 adjusting strength at the(i+1)th term,to make it move to the long-term balance.The economic growth onto urbanization is one-way causality relationship,the primary and secondary industry onto urbanization is also one-way causality relationship.However,the tertiary industry onto urbanization is both-way causality relationship. | LIU Ai-ying1,YAO Li-fen2,LI Qing-chen3 1.School of Business Administration,Hebei University of Economics & Business,Shijiazhuang 050061,China 2.School of Tourism,Hebei University of Economics & Business,Shijiazhuang 050061,China 3.Institute of Geographical Sciences,Hebei Academy of Science,Shijiazhuang 050011,China | 2011 | Asian Agricultural Research2011，3，3： | 4 |
| 16 | Teaching English as a Foreign Language in China: Teachers and Students' Attitudes to the Communicative Approach, Learner-Centering, and Learners' Autonomy显示文摘Modern language teaching’ especially English teaching as a foreign language, is now based on two fundamental approaches traditional one with the teacher dominated and the new emerging one with the learner centered. This paper is a study of the survey of Chinese students regarding the attitudes of the two approaches on English learning. The conclusion of the research is positive on the new emerging approach of English learning by Chinese students. | Oleg Tarnopolsky 1, Tatiana Karajeva 2, Xinhong Zhang 3 (1.Department of Methods,Pedagogical Communication and New Technologies in Foreign Language Dniepropetrovsk Academy of Management,Business and Law Vul.Naberezhna Lenina 18,Dniepropetrovsk 49000, | 2001 | 山东农业大学学报(社会科学版)2001，3，2： | 4 |
| 17 | RESEARCH ON THE BLOCKING FLOW IN A TRANSPORTATION NETWORK──THE GENERAL CONCEPTS AND THEORY OF THE BLOCKING FLOW显示文摘Blockage is a kind of phenomenon occurring frequently in modern transportation network. This paper deals with the research work on the blocking now in a network with the help of network flow theory. The blockage phenomena can be divided intO local blockage and network blockage. In this paper, which deals mainly with the latter, the fundamental concepts and definitions of network blocking flow, blocking outset are presented and the related theorems are proved. It is proved that the sufficient and necessary condition for the emergence of a blocking now in a network is the existence of the blocking outset. The necessary conditions for the existence of the blocking outset in a network are analysed and the characteristic cutset of blockage which reflects the all possible situation of blocking nows in the network is defined.In the last part of the paper the mathematical model of the minimum blocking now is developed and the solution to a small network is given. | Ning Xuanxi (Industry and Business College,NUAA 29 Yudao Street,Nanjing 210016,P.R.China) | 1994 | Transactions of Nanjing University of Aeronautics and Astronautics1994，11，2： | 4 |
| 18 | The Young's moduli prediction of random distributed short-fiber-reinforced polypropylene foams using finite element method显示文摘The elastic moduli of short-fiber-reinforced foams depend critically on the fiber content and fiber length, as well as on the fiber orientation distribution. Based on periodic tetrakaidecahedrons, the finite element models with short-fiber reinforcement were proposed in this paper to examine the effects of the fiber content and fiber length on Young's modulus. The fiber length distribution and fiber orientation distribution were also considered. The proposed models featured in a three-dimensional diorama with random short-fiber distribution within or on the surfaces of the walls and edges of the closed-cells of polypropylene (PP) foams. The fiber length/orientation distributions were modeled by Gaussian prob-ability density functions. Different fiber volume fractions, different lengths, and different distributions were investigated. The predicted Young's moduli of the PP foams with short-glass-fiber or short-carbon-fiber reinforcement were compared with other theoretic and experimental results, and the agreement was found to be satisfactory. The proposed finite element models were proved to be acceptable to predict the Young's moduli of the grafted closed-cell PP foams with short-fiber reinforcement. | WANG Bo1, WANG RongXiu2 & WU Yong1 1 School of Mathematic Science, Chongqing Institute of Technology, Chongqing 400050, China 2 Department of Computer Science and Information Engineering, Chongqing Technology and Business University, Chongqing 400067, China | 2009 | Science China(Technological Sciences)2009，52，1： | 3 |
| 19 | Impact Assessment of Climate Change on Forestry Development in China显示文摘Forestry and forest ecosystem are highly sensitive to climate change.At present,studies about the responses of forests to climate change in China are more focused on physical influences of climate change.This paper firstly divided the key impact factors of climate change on forest and forestry developing into direct factors and indirect factors,and then made an assessment on climate change affecting future forestry development from the aspect of forest products and ecological services.On this basis,the adaptation countermeasures of China's forestry development to climate change were proposed. | LIN Derong 1,2 WU Shuirong1 LI Zhiyong1 1.Research Institute of Forestry Policy and Information,Chinese Academy of Forestry,Beijing 100091,P.R.China 2.Economics School,Shandong Institute of Business and Technology,Yantai 264005,P.R.China | 2010 | Chinese Forestry Science and Technology2010，9，3： | 3 |
| 20 | 用于电力系统仿真的潮流控制器模型显示文摘本文描述了—族基于可关断晶闸管(GTO)电压源逆变器的电力系统控制装置,介绍了静补(STATCON)、串联潮流控制器(SPFC)和统一潮流控制器(UPC)的稳态模型。静补是由美国的EPRI、TVA和西屋科技中心联合开发的基于逆变器的并联装置、不久它将被安装在TVA的16lkV输电系统上用于控制线路电压。而串联潮流控制器和统一潮流控制器则代表了静补在串联应用方面的拓展。这些装置的建模可以结合到现有的大型电力系统分析程序之中供系统稳态研究使用。IEEE的30母线试验系统的仿真结果证明了这些电压源潮流控制装置的稳态性能。UPFC具有能同时对线路的有功与无功潮流独立地进行控制的能力,可以认为它特别适用厂输电潮流控制。 | J. Bian Meniber T. A Lemak Member(Power benration Business Unit Science and Technology CenterWestinghouse Electric Corporation. Pittsburrgh, PA, USA)K J. Nelson Member D. G. Ramey Aenior Member(Power Genration Business UnitWestinghouse Electric Corporat | 1995 | 电网技术1995，19，9： | 3 |
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