基于智能客户端的网络3DGIS体系框架     

王勇 《中国科技信息》2007,(17):116-118

本文将3DGIS和WebGIS相结合进行研究，提出了一种基于智能客户端的网络3DGIS体系框架，弥补了传统建立于浏览器/服务器（Browser/Server，B/S）、客户端/服务器（Client/Server，C/S）模式下的网络GIS体系的不足，最后通过实验证明该系统的可行性。  相似文献   

Mapping innovation dynamics in hospitals     

Faridah Djellal  Faïz Gallouj 《Research Policy》2005,34(6):817-835

This article draws on a notion of the hospital as a complex service provider and healthcare system hub in order to examine the question of innovation in hospitals. It puts forward a relatively simple framework for analysing hospital output, in which the medical function is incorporated into a complex system of other constituent services that make use of different types of technologies. This analytical framework is used to reveal the multiple sources of innovation and the main organising principles driving innovation within hospitals.  相似文献   

不确定性条件下企业信息系统的云化决策方法     

苗虹  宋倩倩  孙金生  王念新  李鹏  葛世伦 《软科学》2016,(8):129-132

企业在决策本地化信息系统转换为云模式的软件即服务时面临着技术市场发展、云化收益、决策者风险偏好等诸多不确定性。针对该决策,引入前景理论考虑了维持现状偏好、追求管理时尚等心理行为,依据交易成本理论和技术组织环境理论提取了决策指标,以未来不同的软件即服务市场成熟度作为前景状态,计算各备选信息系统云化迁移的综合前景值,形成不确定性条件下企业信息系统的云化决策方法。同时,应用该方法实例分析了一家企业,并与基于期望值的灰色随机多准则决策方法进行了比较,说明了该方法的可行性和合理性。  相似文献   

Leveraging Sunken Investments in Communications Infrastructure: A Policy Perspective From the United States     

Anthony G. Wilhelm 《The Information Society》2003,19(4):279-286

Bridging the digital divide between information and technology haves and have-nots has waned from the top of the national policy agenda in the United States during a time in which the sunken investments of the 1990s need to be leveraged. A national information network now exists yet this infrastructure--largely hardware--needs to be continually modernized and parlayed with commitments to building human capacity, developing relevant content, and scaling socially beneficial technology applications, such as telemedicine, in order to optimize these initial multi-billion-dollar outlays. This article makes the case that sidestepping public-private initiatives aimed at accelerating digital opportunity is imprudent, given the mounting empirical evidence highlighting the payoffs of information and communications technologies, when properly integrated and applied, especially in enhancing the life chances of underserved Americans. Policy next steps should advance the goals of expanding universal service initiatives, including hastening broadband deployment to homes and learning institutions, and deepening programs which leverage the utility of the existing infrastructure, such as expanding human-capital development, producing relevant content, and innovating socially beneficial technology applications.  相似文献   

论职务发明创造的非职务化流失   总被引：6，自引：0，他引：6  

陈国清  朱雪忠 《科研管理》2001,22(6):15-20

职务发明创造非职务化，是单位甚至国有专利权流失的一条重要途径。本比较系统地探讨了职务发明创造非职务化的表现形式，分析了导致职务发明创造非职务化的原因，最后提出了遏制职务发明创造非职务化的对策。  相似文献   

数字参考服务若干问题研究   总被引：11，自引：0，他引：11  

林秀 《情报科学》2004,22(6):691-694

文章论述了数字参考服务的概念与内涵，以及数字参考服务的三种基本方式，指出了未来数字参考服务的发展趋势，认为提供个性化服务是未来数字参考服务的核心方向与目标。  相似文献   

我国的信息咨询业发展中的服务创新   总被引：2，自引：0，他引：2  

刘佳  马海群 《情报科学》2001,19(11):1128-1131

本文针对目前我国信息咨询业的发展机遇和发展中的不足，提出了以服务创新带动咨询业发展的构想，并分析了服务创新的基本内容。  相似文献   

SERVQUAL模型在留学服务业中的应用研究     

金仁旻  陈艳 《湖北广播电视大学学报》2011,31(10):121-122

结合留学服务业特点,对SERVQUAL原模型进行修正;利用SPSS验证修正后模型的适用性;通过新模型测评目前留学服务业的服务质量。  相似文献   

Time allocation scheme in IEEE 802.15.3 TDMA mechanism   总被引：1，自引：0，他引：1  

LIU Xin  DAI Qiong-hai  WU Qiu-feng 《浙江大学学报(A卷英文版)》2006,7(Z1)

In network with a shared channel in TDMA mechanism, it is a core issue to effectively allocate channel time to provide service guarantees for flows with QoS requirements. This paper proposes a simple and efficient time allocation scheme called MES-ESRPT (MCTA at the End of Superframe-Enhanced Shortest Remaining Processing Time) for delay-sensitive VBR traffic in accordance with IEEE 802.15.3 standard. In this algorithm, PNC (piconet coordinator) allocates one MCTA (Management Channel Time Allocation) for each stream which is the process of communication at the end of superframe. During the MCTA period, each transmitter should report current fragments number of the first MSDU (MAC Service Data Unit) and the fragments number of the remainder MSDUs to PNC. In the next superframe, PNC firstly allocates part CTAs (Channel Time Allocation) for each stream based on the remainder fragments number of the first MSDU by SRPT rule, then allocates remainder CTAs for each stream based on all fragments number of remainder MSDUs by the same SRPT rule. Simulation results showed that our proposed MES-ESRPT method achieves significantly better performance in QoS for multimedia streams compared to the existing schemes.  相似文献   

对高等教育“大众化“的哲学反思 ——论“精英教育“的公正和平等     

杨德齐 《承德师专学报》2003,23(1):62-65

近几年来,人们要求"高等教育大众化"的呼声越来越高,由此提出了关于"高等教育为谁服务"的问题.本文从高等教育作为"高深学问"的本质、从经济基础和上层建筑的关系、从人权的平等等几个角度,对这种高等教育"英才"模式的合理性进行哲学论证并认为目前"高等教育"概念模糊是阻碍更高层次教育普及的原因之一.  相似文献