*EI 拓扑分子格在聚类分析中的应用

本文在引入AFS代数和AFS结构的基础上,通过对AFS代数上拓扑分子格结构的讨论,给出了EM中,由一些模糊概念生成的拓扑分子格所诱导出的X上拓扑的几点性质,并利用这些性质,对一个实际例子构造了隶属函数进行聚类分析,说明了这些性质在聚类分析中的应用。     

重庆市产业集群现状及其培育策略研究

产业集群是当今产业发展的重要特征之一,是提升产业竞争力的重要方式,是增强区域综合竞争能力的重要途径。本文根据产业集群理论,对重庆市产业集群发展现状及存在的问题进行了剖析,并认为重庆的产业集群发展尚处于形成阶段,且基本上属于低端道路型产业集群。据此,文章提出了进一步培育重庆市产业集群的四点策略。     

OUTPUT FEEDBACK CONTROL FOR MIMO NONLINEAR SYSTEMS WITH EXOGENOUS SIGNALS

The paper addresses the global output tracking of a class of multi-input multi-output （MIMO） nonlinear systems affected by disturbances, which are generated by a known exosystem. An adaptive controller is designed based on the proposed observer and the backstepping approach to asymptotically track arbitrary reference signal and to guarantee the boundedness of all the signals in the closed loop system. Finally, the numerical simulation results illustrate the effectiveness of the ProPosed scheme.     

Order Aggressiveness in Shanghai Stock Market of China

This paper analyzes order aggressiveness in Shanghai stock market of China which is a pure order driven market. We provide empirical evidence that the mean order aggressiveness is negative （low） and most traders are liquidity providers. Our results also show that high order aggressiveness accompanied with high market volatility and large trade volume. The intraday order aggressiveness pattern is from low to high. Four factors： spread, volatility, order imbalance and size affect order aggressiveness, but they affect the buy and sell side differently.     

渭南市城市水资源优化调度研究

针对渭南市供水系统水源(量)调度问题,采用系统科学的方法进行了初步研究。通过分析大量实际资料,剖析渭南市区供水系统各要素及其相互关系和水源工程的特点,建立了渭南市区供水水源优化调度的模型;运用系统工程中动态规划模型,获得了渭南市市区供水水源优化调度策略式方案。     

Mapping of the rice （Oryza sativa L.） thermo-sensitive genic male sterile gene tms5 with EST and SSR markers

VELOPING“TWO-LINE”HYBRID RICE.THE POLLEN FERTILITY OF TGMS IS REGULATED BY THE TEMPERATURE OF ENVIRONMENT.THE POLLENS OF TGMS LINES ARE STERILE WHEN THE ENVI-RONMENT TEMPERATURE IS ABOVE A CRITICAL POINT,BUT FERTILE BELOW THIS POINT.SO FAR,A NUMBER OF T…     

Phase behavior of supercritical CO2 microemulsion with food-grade surfactant AOT

Supercritical CO2 (scCO2) has drawn wide attentions as a cheap and efficient green solvent replacing the conventional organic solvents. These technological ap- plications increase rapidly especially in food-relative industry, such as extractions of beer h…     

Genetic analysis and molecular mapping of a presenescing leaf gene psll in rice （Oryza sativa L.）

A rice psl1 （presenescing leaf） mutant was obtained from a japonica variety Zhonghua 11 via radiation of ^60Co-γ in M2 generation. Every leaf of the mutant began to wither after it reached the biggest length, while the leaves of the wild variety could keep green for 25--35 d. In this study, genetic analysis and gene mapping were carried out for the mutant identified. The SSR marker analysis showed that the mutant was controlled by a single recessive gene （psl1） located on chromosome 2. Fine mapping of the psl1 locus was conducted with 34 new STS markers developed around psl1 anchored region based on the sequence diversity between Nipponbare and 93-11. The psl1 was further mapped between two STS markers, STS2-19 and STS2-26, with genetic distances of 0.43 and 0.11 cM, respectively, while cosegregated with STS2-25. A BAC contig was found to span the psl1 locus, the region being delimited to 48 kb. This result was very useful for cloning of the psl1 gene.