面向21世纪的Si基光子学

Si基光子学是近年来在半导体光电子学和纳米材料科学领域中迅速发展起来的一个新型分支学科,旨在研究各类Si基低维材料的发光特性,各种Si基光子器件的设计与制作,并进而实现用于现代光通信技术的全Si光电子集成电路。预计在未来10年内,随着Si基纳米材料发光效率的提高,器件制备技术的进步和光电子集成工艺的成熟,Si基光子学的研究将出现重大突破性进展,并很有可能引发一场新的信息技术革命。本文着重介绍了用于Si基光电集成的光子学材料、器件与工艺在近3~5年内所取得的研究进展,并预测了它们的未来发展趋势。     

基于移动Agent的软件度量研究

结合软件度量理论对移动Agent的属性进行度量,通过对属性的不同定义来寻找影响移动Agent软件质量的因素。发展了面向对象、面向Agent的软件度量,提出面向移动Agent的软件度量方法,针对不同属性值的定义进行数据收集,采用统计比较分析的方法进行推理和决策,开发新的度e量模型。     

基于蓝牙协议的无线应用

指出蓝牙技术在短距离通信中被广泛地应用,在介绍蓝牙系统结构的基础上,依据系统建立蓝牙无线应用模型。     

对山西道路现代物流信息平台搭建方案的建议

分析了现代物流的基本特征,介绍了山西物流业发展的基础设施环境现状和山西现代物流发展战略及现代物流信息平台的规划,论述了道路现代物流信息平台的搭建方案。     

Patterned deposition of multi-walled carbon nanotubes on self-assembled monolayers

The excellent electro-mechanical properties and chemical stability of CNTs promise a prospective ap- plications in nanotechnology. For electronic applica- tions, CNTs have been proved successful in practice in producing components such as a junction and f…     

Materials informatics and study on its further development

NOWADAYS,WITH THE DEVELOPMENT OF MATERIALS SCI-ENCE AND TECHNOLOGY AND WITH THE CONTINUOUS EMER-GENCE OF NEW MATERIALS,TECHNOLOGIES,PROCESSES AND METHODS,PROLIFERATION AND COMPLEXITY OF MATERIAL SCI-ENCE DATA HAVE INCREASED ENORMOUSLY.THEREFORE,DIFFI-CULT…     

Dust storm in Asia continent and its bio-environmental effects in the North Pacific： A case study of the strongest dust event in April, 2001 in central Asia

The iron hypothesis, first proposed by John Martin in 1990[1], suggests that some surface oceans such as North and Equatorial Pacific Oceans have high nutrient but low chlorophyll (HNLC). Thus iron coming from terrestrial dusts is the primary factor limit…     

Immune responses of a designed HIV-1 DNA vaccine on rhesus monkeys

According to the UNAIDS/WHO report (http:// www.unaids.org/Epi2005/doc/report.html), there are about 40.3 million HIV/AIDS survivors, and the new HIV infection number amounts to about 4.9 million, while the death number is some 3.1 million in the world in…     

Time-frequency analysis of SH waves in an isotropic plate bordered with one elastic solid layer

Acoustic sensing utilizing shear-horizontal acoustic plate mode (SHAPM) has attracted much interest in recent years[1―3] due to the fact that the absence of the component of the displacement normal to the surface allows each SH mode to propagate in the p…     

Effect of Land Use on Soil Properties in Debris Flow Bottomland： A Case Study at Xiaojiang Basin, Yunnan

In order to understand the effect of different land use on soil physics and nutrients properties of the debris flow bottomland, a case study at Daqing gully （in Xiaojiang Basin, Yunnan） was conducted in 2004. Soil samples were taken at depth of 0-10,10-20,20-40,40-60,60-80 cm under three land use patterns crop bottomland （CL）, forest bottomland （FL）, and barren bottomland（BL）. The results showed that the developing bottomland to CL promoted soil toaccumulate total phosphorus （TP） and available phosphorus （AP）, pH value transferred from neutral to alkalescency, and organic matter decreased significantly. Furthermore, the contents of total nitrogen （TN） and available nitrogen （AN） in CL were lower than that of FL and BL because the growth of crops consumed more nutrients in soil. The results also showed that the contents of TP, AP and available potassium （AK） in soil were positively correlated with soil particle.