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。     

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…     

Wind vector retrieval using dual polarization imagery of ASAR

A new algorithm for retrieving wind vector using dual polarization imagery of advanced synthetic aperture radar (ASAR) is developed and tested. Based on the combination of co-polarization and cross-polarization, this new algorithm effectively eliminates the 180° ambiguity which occurs when using single imagery of the ASAR to retrieve wind vector. This algorithm also solves the problem that the retrieval results will break down on very small spatial scales. The results retrieved from dual polarization imagery of ASAR show that the wind speed and direction are in agreement with the data from Quikscat and buoy measurements. The root mean square errors of wind direction and speed between the retrieved results and data from Quikscat are 2.21° and 0.53 m/s, respectively. Comparisons between the new method and the traditional method show that the new methods fit the buoy data and Quikscat data a little better than the traditional method in this image.     

Retrospect to Human Deep Space Exploration History and Its Prospect in China

1The Goals of Deep Space ExplorationThe deep space exploration is relative to nearearth space exploration.According to theWhitePaper on China’s Space Activities in2000[1],theexploration of space other than earth is presentcalled“Deep Space Exploration”in China.Thisconception is not unchangeable.It will evolvewith improvement of space technologies andcapabilities of mankind.Generally activities of human space can becategorized into three fields:Earth ApplicationSatellite,Manned Space…     

Subsumption Checking between Concept Queries in Different Ontologies Based on Mutual Instances

This paper proposes a checking method based on mutual instances and discusses three key problems in the method： how to deal with mistakes in the mutual instances and how to deal with too many or too few mutual instances. It provides the checking based on the weighted mutual instances considering fault tolerance, gives a way to partition the large-scale mutual instances, and proposes a process greatly reducing the manual annotation work to get more mutual instances. Intension annotation that improves the checking method is also discussed. The method is practical and effective to check subsumption relations between concept queries in different ontologies based on mutual instances.     

基于知识的企业集群核心能力培育

探讨了集群核心能力的概念、本质和来源,通过对集群知识系统的分析,识别出集群核心能力的两个关键要素———集群层构架知识的存量和集群层构架知识的创新能力,最后,提出了培育集群核心能力的对策。     

企业知识结构及其优化机制

主要研究了企业知识结构的内涵和优化方法,提出了知识结构的优化机制,认为从人才结构方面来优化企业知识结构,主要任务是明晰人才结构和知识结构的对应关系,促使企业人才结构不断去适应企业知识结构;从知识使用成本方面优化知识结构,就是要积极吸收和创造能够带来利润的知识,同时把那些不能给企业带来利润的知识外化;从企业知识转化方面优化企业知识结构,就是要加速企业知识的正向转化,阻止和延缓企业知识的逆向转化,促进企业核心知识内部的转化。     

不同植被配置对坡面土壤侵蚀的影响

根据人工模拟降雨试验,在不同植被配置的坡面上,研究了黄土丘陵区坡面不同植被配置对入渗、产流产沙的影响。结果表明,在小雨强下,不同植被配置的稳渗率大小差别较大;随着雨强的增大,不同植被配置的稳渗率大小差别变小。不同雨强下,5种不同植被配置的坡面基本上都在5min内达到稳渗。不同植被配置坡面流含沙量均呈缓慢下降趋势。并且在小雨强下,不同植被配置坡面径流含沙量的下降趋势较为平缓;在大雨强下,累积产沙量曲线的斜率也越大。     

高级别管线钢精炼工艺分析

对LF-VD、RH-LF和LF-RH三种精炼流程生产管线钢过程进行了系统取样和综合分析.结果表明:三种工艺均可生产高级别管线钢,但LF-RH流程可生产纯净度和洁净度更高的产品;不同精炼手段具有不同的精炼功能,但由于生产流程中相续精炼工序渣量和渣组成等的相互关联和制约,各精炼工序均会受到上下游精炼工序的影响.