一个本科生化学综合设计实验——双偶极Ru(Ⅱ)配合物和普鲁士蓝自组装多层膜的研究

用一种双偶极Ru(Ⅱ)配合物和普鲁士蓝分别代替一个本科生化学综合设计实验中的半菁和杂多阴离子,成功地制备了双偶极Ru(Ⅱ)配合物和普鲁士蓝的静电自组装多层膜,并通过紫外-可见光谱和电化学技术对薄膜进行了表征.结果表明:多层膜可被均匀沉积厚达至少12层,膜中普鲁士蓝与Ru(Ⅱ)配合物之间发生较强的电荷转移作用,具有良好的电化学活性.     

基于LDMOS电容的振荡器设计

基于0.5μm CMOS工艺,考虑面积、功耗和工作状态中电容容值等因素,采用LDMOS电容来实现高精度频率的振荡器.一般的CMOS电容特性是非单调变化的,而LDMOS电容只工作在积累区和耗尽区,电容特性可近似理想电容.仿真和测试结果表明,在电源电压1.5～5 V大范围变动的情况下,振荡频率稳定性高,达到设计预期效果.在给电容充电用的静态电流只有40 nA的低电流条件下,振荡器模块中电容的版图面积只有65 μm×65 μm,而且LDMOS工艺和CMOS工艺兼容,可以在不增加工艺复杂度的前提下,用较小的版图面积产生高精度时钟信号.     

Embedded integrated servo-controllers for intelligent modular actuators

This paper focuses on the development of an embedded integrated servo-controller （EISC） for servomotors. Comprising of mainly servo-controller and servo-amplifiers, this EISC is capable of controlling a wide range of servomotors to perform complieated tasks. Hence, integration of this EISC with a servomotor forms an intelligent modular actuator （IMA） that is essential to modern manufacturing industries. The development of such an EISC involves two major tasks： first, designing the hardware of a compact-sized and highly compatible EISC, and second, developing the software functions to facilitate its functionalities and capahilities. The developed EISC hence forms an integrated-servo-eontrol module, which determines the capability, functionality, flexibility and responsiveness of these IMAs.     

扩展的语义分析的WAP协议缺陷测试

首先介绍了一种基于语义分析的缺陷测试技术.该测试方法利用语义测试及软件错误注入来进行测试.它比传统测试的成本要小,同时能达到很好的效果.但该方法只能检测协议实现级别的漏洞,而不能检测协议设计中可能存在的缺陷.本文结合了Petri网在协议测试方面的优点提出了一种扩展的语义分析的协议缺陷测试方法.它能通过对协议Petri网模型的分析来捕获协议层面的缺陷,而为此所需的额外开销是很小的.这弥补了原缺陷测试在协议层面的不足.之后对该方法各个阶段进行了介绍.对WAP-WSP协议的进行了缺陷测试,并对结果进行了分析,证明其可行性.     

UML在医疗保险信息系统需求分析及建模中的应用

分析了医疗保险系统的基本信息需求,基于UML描述其信息流程及处理逻辑,建立了系统的需求分析模型。     

陆西凹陷上侏罗统近岸水下扇沉积特征

简述了中生代断陷湖盆陡坡发育的近岸水下扇识别标志、各亚相和微相的沉积特征，提出了水进型近岸水下扇的垂向沉积序列和沉积模式，评价了近岸水下扇各微相砂体的储集性能，指出了富集油气的沉积微相类型．     

Observer-based controller design for singular stochastic Markov jump systems with state dependent noise

This paper is concerned with the problem of observer-based controller design for singular stochastic Markov jump systems with state-dependent noise. Two concepts called “non-impulsiveness” and “mean square admissibility” are introduced, which are different from previous ones. Sufficient conditions for the open- and closed-loop singular stochastic Markov jump systems with state-dependent noise to be mean square admissible are provided in terms of strict LMIs. The controller gain and the observer gain which guarantee the resulting closed-loop error system to be mean square admissible are obtained in turn by solving the strict LMIs. A numerical example is presented to show the efficiency of the design approach.     

A hybrid differential evolution algorithm for meta-task scheduling in grids

Task scheduling is one of the core steps to effectively exploit the capabilities of heterogeneous re- sources in the grid.This paper presents a new hybrid differential evolution(HDE)algorithm for finding an optimal or near-optimal schedule within reasonable time.The encoding scheme and the adaptation of classical differential evolution algorithm for dealing with discrete variables are discussed.A simple but ef- fective local search is incorporated into differential evolution to stress exploitation.The perfo...     

用一种新的补偿方法实现低压差线性稳压器

使用一种新的频率补偿方法设计了一种100 mA低压降CMOS线性稳压器(LDO).所设计的LDO仅使用了一个PMOS管进行补偿,无需使用电路内部其他的补偿电容和补偿电路就能保持稳定.使用0.18 μm工艺仿真结果表明,设计的LDO使用4.7 μF的负载电容,具有高的PSRR和很好的瞬态反应特性,在负载电流从0 mA跳变到100 mA以及从100 mA跳变到0 mA的时候,输出的变化小于8 mV,反应时间小于1μs,且在1kHz的时候PSRR为-72.3 dB.