远程招生系统的设计与应用     

李杰 《科技风》2009,(3)

构建一个与现代远程教育发展相匹配的招生管理平台,将会有效促进现代远程开放教育的发展。应用ASP技术、在B/S模式下设计开发的基于WEB的远程招生系统,对规范开放教育的招生工作具有现实指导意义。  相似文献   

B/S模式下基于RBAC的权限管理系统设计与实现     

许向勇 《科技风》2009,(21)

权限管理是管理信息系统的核心功能之一.本文基于RBAC 型,针对B/S模式的特点,考虑了系统安全性、有效性和灵活性.提出了权限管理系统的设计方案.  相似文献   

基于嵌入式系统的智能家居网关的研究     

高刃  汪成义 《科技创业月刊》2009,22(4)

智能家居系统是利用计算机、嵌入式系统和通信网络技术将各种家用设施(如照明、安防、家电等)连接到一起,从而为人们提供更为便利舒适的生活.在对家庭网络、嵌入式系统深入研究的基础上,对采用s3C4510B微处理器成功开发的嵌入式家庭网关进行了深入的分析,并对搭建智能家居系统进行了模拟与分析.  相似文献   

机构知识库开源软件Dspace的开发策略研究   总被引：3，自引：0，他引：3  

俞小怡  金玉玲  常艳 《现代情报》2009,29(6):140-142

概要介绍机构知识库开源软件Dspace系统的概念和系统特征,研究分析标准标签库的汉化过程,程序开发和运行中路径重置和引入开发工具Eclipse IDE的相关策略,并给出相应的解决方案.  相似文献   

K-Mean聚类分析对第18届世界杯足球赛各参赛队进攻能力的研究   总被引：3，自引：1，他引：2  

王朝信 《南京体育学院学报(社会科学版)》2009,23(1):110-113

对第18届世界杯足球赛32支球队64场比赛的进球数、射进指数、助攻、射正球门次数、射门次数、角球、任意球、越位、反击次数、短传、长传、传中次数等12项进攻指标进行K-M ean聚类分析,并对各指标的差异性进行方差分析,结果显示各类间在场均进球数、射进指数、助攻、射正球门次数、射门次数、角球、短传次数等7项进攻指标上均存在显著性差异,表明应用K-M ean聚类分析对球队的各项进攻指标进行量化评价具有较高的可靠性,可以客观地反映出各队的进攻能力,揭示出现代足球进攻的发展趋势,并探索一种较为合理有效的量化评价球队进攻能力的方法。  相似文献   

人工智能算法在排课系统中的研究与应用     

郭彤 《天津职业院校联合学报》2012,(2):79-82

通过对人工智能算法的研究,结合排课问题的求解难点和目标,提出以时间为中心的求解排课问题方案的总体思路,进而设计了排课系统的具体实现方案,建立了基于人工智能算法的排课模型。  相似文献   

Innovation and business survival: A long-term approach     

José M. Ortiz-Villajos  Sonia Sotoca 《Research Policy》2018,47(8):1418-1436

This paper explores the influence of innovation on the probability of survival of two hundred top British firms founded throughout the nineteenth and twentieth centuries. To this end, we have collected the firms’ significant innovations and classified them by Schumpeterian types, patented and non-patented and domestic and imported. The number of patents registered by the firms throughout their lifetime ?a rough measure of their incremental innovation activity– has also been recorded. In addition, twelve control variables ?five characteristics of the firms and seven of their business leaders– have been included. Both log-normal and gamma duration models have been used in the analysis. They have been estimated, firstly for the whole set of firms and, secondly, for the manufacturing and the service firms separately to control for industry differences. The results of the log-normal and gamma estimations are highly coincident, with some nuances. The significant innovations ?particularly new processes, non-patented and domestic ones– have been found to positively influence the probability of business survival. The number of patent applications seems to increase the survival probability of the manufacturing firms, but not of the service ones. Among the control variables, the firm’s size, its international dimension, and the age of the business leader at entry seem to be the most influential ones on business survival, although there are some differences between manufacturing and services. The main results are robust to the division of the sample by entry period.  相似文献   

When access to drugs meets catch-up: Insights from the use of CL threats to improve access to ARV drugs in Brazil     

Shyama V. Ramani  Eduardo Urias 《Research Policy》2018,47(8):1538-1552

Access to affordable lifesaving medicines is considered a human right. This leads to a question largely understudied in the catch-up literature on accumulation of industrial capabilities. Can the need to improve access to an essential commodity impact the sectoral catch-up trajectory of the corresponding industry? In 1996, Brazil initiated a policy of universal and free access to highly-active ARV therapy, which put an enormous pressure on the Brazilian Ministry of Health (MoH). In order to ensure an adequate supply of ARVs in the public healthcare system with a limited budget, MoH started negotiating price reductions for high-cost patented drugs, often deploying the threat of using compulsory licensing. Through a scoping review of the literature and construction of the Brazilian case study, the paper explores how the need to access is impacted by prior catch-up in the pharmaceutical sector and triggers in turn future sectoral catch-up. It shows that price negotiations may or may not impact both catch-up and access positively. Catch-up can provide bargaining strength in price negotiations and have a positive inter-temporal impact on both future catch-up and access. However, results suggest that only successful catch-up can lead to long term access, as the capabilities accumulated in aborted catch-up are not sufficient for large scale production of low cost essential medicines. Thus, industrial policy and health policy can impact one another and twining between catch-up and access can be helpful.  相似文献   

Defining and measuring innovation in all sectors of the economy     

Fred Gault 《Research Policy》2018,47(3):617-622

This paper combines general definitions of innovation applicable in all economic sectors with a systems approach, to develop a conceptual framework for the statistical measurement of innovation. The resulting indicators can be used for monitoring and evaluation of innovation policies that have been implemented, as well as for international comparisons. The extension of harmonised innovation measurement to all economic sectors has implications for innovation research and for policy learning.  相似文献   

On the value of foreign PhDs in the developing world: Training versus selection effects in the case of South Africa     

Moritz Müller  Robin Cowan  Helena Barnard 《Research Policy》2018,47(5):886-900

When seeking to improve science in emerging economies, uncertainty exists whether PhD training in an emerging economy can yield comparable results to PhD training in the developed world. Scientific achievements may vary because of excellent training at good universities, but also because excellent students select (and are selected by) good universities. This paper compares the career effects of overseas and domestic PhD training for scholars working in an emerging economy, South Africa. We differentiate between and examine both selection and training effects for PhDs from three tiers of South African and two tiers of foreign universities. South African academics with PhDs from universities in industrialised countries generally achieve greater career success than those with local PhDs, but training by universities in industrialised countries is not necessarily better than local training. Our results suggest that the perceived superiority of foreign PhD training stems from selection rather than do training effects, and pure selection effects in fact explain career outcomes better than training effects. Focusing on training rather than selection, PhDs from top South African universities produce a similar quantity and quality research output to those trained by the leading universities in the developed world. From the perspective of an emerging economy with limited resources wishing to advance science, the development of local universities should thus be stressed, although it is clear that individuals who are able to study for a PhD abroad gain personally when they return.  相似文献