大型施工企业信息化建模需求分析方法研究     

朱琳  高奇 《贵阳金筑大学学报》2010,(3):32-34

对大型施工企业信息化进行需求分析是实施信息化项目的基础,需求分析决定了企业如何选择和应用不同的信息化项目。通过对大型施工企业几个关键业务的需求分析,对其进行问题识别和分析综合,提出基于现存问题的解决思路,分析各关键业务的信息化需求。  相似文献   

icl7135的串行采集方式在蓄电池电压监测系统中的应用     

潘艳荣 《广西广播电视大学学报》2010,21(3)

文章介绍了双积分型a/d转换器icl7135的串行数据采集方式在蓄电池电压监测系统中的应用,给出了icl7135与mcs-51单片机串行接口实现电压监测硬件和软件设计方法.  相似文献   

PI3K阻断剂对大鼠运动骨骼肌Akt/mTOR信号的影响   总被引：1，自引：0，他引：1  

曾凡星  朱晗  赵华 《北京体育大学学报》2010,(11)

目的:通过阻断PI3K信号,以深入探讨Akt/mTOR通路在抗阻运动中骨骼肌蛋白合成的作用。方法:8周龄雄性SD大鼠在适应性训练后分为4组:安静组(S)、阻断剂组(SL)、运动组(E)、运动+阻断剂组(EL),每组6只。运动方式为跑台运动(坡度为10%,跑速20 m/min,60 min),每天1次,共7 d。腹腔注射外源性LY294002(剂量为5.5 mg/kg)。用Western Blotting法检测腓肠肌MHC、Akt和mTOR蛋白表达、Akt(Ser473)和mTOR(Ser2448)磷酸化表达。结果:在一周后,LY294002明显抑制MHC,运动有促进的趋势,并减弱LY294002对MHC的抑制效应。LY294002显著抑制Akt和mTOR蛋白表达、Akt(Ser473)和mTOR(Ser2448)的磷酸化表达,而运动明显增强mTOR、Akt(Ser473)和mTOR(Ser2448)表达。结论:1)阻断PI3K信号可使运动骨骼肌Akt/mTOR通路受到明显抑制,而同时骨骼肌MHC明显降低,明显抑制肌肉蛋白合成。2)运动明显促进该通路的表达,并减弱PI3K阻断剂对该通路的抑制效应。3)PI3K阻...  相似文献   

新中国图书馆学体系研究六十年   总被引：1，自引：0，他引：1  

马恒通  赵卫利 《图书情报工作》2010,54(23):23-132

认为新中国成立60年来,图书馆学界对图书馆学体系的研究已取得重要突破和进展,并构建多种类型的图书馆学体系。但在确定图书馆学体系各层次内容中,还存在缺乏逻辑性等诸多缺点。指出应遵循科学合理的构建原则,克服各种缺陷,构建具有时代性、科学性、系统性的图书馆学体系。目前图书馆学体系正朝着深度分化、边缘综合、层次拓展的方向发展。  相似文献   

我国精品科技期刊数字对象标识符的实施策略     

姚长青  赵蕴华  乔晓东  郭晓峰 《情报理论与实践》2009,32(8)

在我国精品科技期刊的发展战略中采用数字对象标识符技术已经成为业界的共识.本文首先阐述了实施精品科技期刊数字对象标识符的基本运行管理模式,并论述了精品科技期刊数字对象标识符的编码规范和元数据框架,最后介绍了精品科技期刊数字对象标识符的注册、解析和中英文引文链接等实现过程.基于数字对象标识符实现精品科技期刊信息交流平台能够有效地实现与国际标准接轨,提高我国精品科技期刊的国际影响力.  相似文献   

基于.Net的开放式实验室管理系统的设计与实现   总被引：1，自引：0，他引：1  

焦铬  刘辉  陈受凯 《科技管理研究》2009,29(12)

对现有的实验室管理系统进行分析和研究,采用.net组件技术、B/S体系结构和SQL Server 2005数据库设计开放式实验室管理系统,并阐述设计的关键技术.  相似文献   

震后岷江上游地区生态旅游开发的SWOT分析     

吴小玲 《软科学》2009,23(7)

通过采用SWOT法分析岷江上游地区生态旅游业开发的优势、劣势、机会和挑战,从而提出适宜的生态旅游业开发对策,更好地利用旅游资源,实现产业结构的优化升级,以促进灾后重建工作中生态旅游业的发展。  相似文献   

基于Browser/Serve结构的医院体检系统     

郭晓玲 《中国科技信息》2009,(17):109-109,111

一年一度或两年一度的体检成为医院一项繁重的工作,为了提高医院的工作效率和服务质量．本文讨论了医院体检系统应具备的功能,并在此基础上给出了一个基于Browser／serve结构的系统,介绍了实现中用到的关键技术,最后说明了采用体检系统的优点.  相似文献   

基于ZigBee技术的水质实时监测系统的设计     

杨树兴 《中国科技信息》2009,(24):102-104

ZigBee技术是一种新兴的无线组网通信技术,本文旨在介绍基于此技术组成的无线传感器网络系统,实现对水产养殖水体水质实时监测,并与其它数据传输方式结合将检测数据传输到上位机,实时显示检测结果,方便用户及时了解养殖水体中一些影响水产品生长和健康的主要水质参数的变化,实时掌握水质状况.  相似文献   

Post-Soviet science: Difficulties in the transformation of the R&D systems in Russia and Ukraine     

Igor Yegorov 《Research Policy》2009,38(4):600-609

In the late 1980s, the Soviet Union was among the foremost leaders of world science, thanks in large part to its heavy involvement in military programmes. The USSR developed a large research infrastructure but it lacked effective mechanisms for the commercialization of research results. The main aim of the transformation of R&D systems in the post-Soviet states in the 1990s and early 2000s was the re-orientation of scientific activities away from military and towards civilian goals. Analysis of statistical data at the macro-level suggests that this attempt was not particularly successful. Indeed, most newly independent states could not even preserve a ‘critical mass’ of scientific activities in order to remain among the list of significant producers of research results. In the post-Soviet countries (and in this paper we focus on Russia and Ukraine as the largest states of the region), inputs from the R&D system have failed to generate wealth-creating outputs because of a systemic inability to use the resources for generating commercially viable results effectively. All post-Soviet countries, including Russia and Ukraine, urgently need not only a major transformation within the R&D system, but also important changes in the wider ‘environment’. It is important to stress that, in recent years, changes in R&D have been determined not only by the general economic situation itself but also by the general policy of the post-Soviet states. While Russia has expressed ambitions to regain its former influence as a great power and to use S&T to achieve this goal, Ukraine has no clearly determined objectives for the development of its national science system. However, both countries face certain common problems. The development of relevant institutes and the stimulation of demand for R&D results from the side of industry, broader involvement in the international division of scientific work, and the introduction of adequate legal protection for intellectual property rights are all of critical importance for S&T institutes and other research organizations in Russia and Ukraine. This paper shows that the reforms in the R&D sector have been relatively modest and rather unsystematic over the last one and a half decades. The key challenges, which relate to the inertia and the negative aspects of the previous period (for example, a extremely low level of replacement of aging manpower, largely outdated scientific equipment in research laboratories, and institutional mechanisms that are not relevant to the market economy), pose serious problems for the transformation of the R&D systems in both countries, despite new possibilities and a willingness to increase financial support for R&D.  相似文献