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本文结合作者在排水工程中的实际经验，认真分析了目前使用变频器存在的谐波问题，噪声问题，负载匹配问题及发热问题的现象与根源，并提出了若干切实有效的处理对策。 相似文献
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论图书馆数字化面临的十大难题 总被引：3，自引：0，他引：3
主要论述和归纳了图书馆数字化发展过程中面临的十个问题，它们是信息安全问题，信息量激增问题，虚假信息甄别问题，阅读方式革命问题，结构性失业与下岗问题，第一流人才匮乏问题，隐私权保护问题，信息沉迷上瘾问题，信息化移民问题和城乡信息化鸿沟问题等。 相似文献
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中国科技企业孵化器的现状及潜在问题分析 总被引：21，自引：1，他引：21
本文论述了科技企业孵化器的内涵和功能，对国内孵化器的发展现状进行了总结，根据其表现形式和特点对其进行了分类，分析了我国科技企业孵化器在建设中存在的一些问题，如运营机制问题、创新环境建设问题、高科技集群优势的发挥问题以及孵化器和风险投资的结合问题等，并提出了相应的解决对策。 相似文献
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随着国际互联网的飞速发展，网络信息安全问题越来越突出，如何保障网络信息运行安全已成为全社会关注的焦点，也是关系到网络能否生存的重大问题，本文通过对我国网络信息安全问题现状的分析，论述了我国网络信息安全存在的主要问题和威胁，进而提出了解决这些问题的一些方法和建议。 相似文献
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本文阐述了数字图书馆在建设中涉及到的法律问题，其中包括数字图书馆的版权问题、著作权问题以及知识产权问题，并就相关问题进行了探讨。 相似文献
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为保证石油系统的高等职业教育事业健康生存和发展，我们面临着一些必须面对和需要着手解决的问题，本文从多方面分析了这些问题产生的原因，指出了问题的存在可能带来的危害，阐述了解决这些问题的必要性和可能性， 相似文献
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在现实社会中基层环境监测站存在了诸多问题，这些问题已经严重影响了我国环境污染防治的进程。本文通过对基层环境监测站中存在的一些问题进行剖析，找到了导致这些问题的原因，并据此提出了一些改进策略。 相似文献
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随着改革开放以来的不断发展，我们在交通行业取得了很大的发展。今天的车辆在人们的生活中越来越普及了，人均占有量在不断的增加。与此同时也有很多的问题存在，车辆的维修与保养慢慢的成为了大家探讨的热门话题。在调查中有很多的关于汽车维修的问题，这些问题对于我们汽车的持有者产生了极大地影响，很多的时候我们服务得不到满足，维修理念比较陈旧，这些问题都是非常实际的问题，我们在积极的寻求问题的对策，想通过对策来解决问题，从而提高服务的质量，促进维修行业的发展。 相似文献
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以互联网为核心的网络技术的发明与广泛应用,使整个人类社会进入了网络经济时代,极大改变生产和服务的流通方式,深刻影响消费者的价值观念和消费行为。然而经历了许多繁荣与衰落的互联网服务业,充分认识到创新模式的重要性,如何创新并设计出好的模式,成了关注的新问题。从互联网服务业的概念、范围研究入手,归纳其特征,厘清创新内容,提出创新模式的分析框架,希望通过此研究给互联网服务业的发展提供一些有益的启示。 相似文献
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[目的/意义]调查全球重大事件网络存档的代表性行动旨在发现通用策略与发展空间,推进信息管理理论与方法在互联网背景下的扩充。[方法/过程]通过案例分析,总结共有行动要点,由此结合中国情境发现重大事件网络信息存档的探索方向。[结果/结论]由此,将重大事件网络信息存档要点归纳为:立足事件维度的信息全景调查、基于主体协同的资源整合配套、面向存档活动的环节规范设置与匹配存档需求的辅助要素配置。同时,结合我国国情从重大事件网络信息存档的常规化、事件与信息的真实对照、主体协同有效落实于行动、完备的流程与工作内容设计、保障体系配置等方面提出问题式的展望。 相似文献
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Motivation of software developers in Open Source projects: an Internet-based survey of contributors to the Linux kernel 总被引：2，自引：0，他引：2
The motives of 141 contributors to a large Open Source Software (OSS) project (the Linux kernel) was explored with an Internet-based questionnaire study. Measured factors were both derived from discussions within the Linux community as well as from models from social sciences. Participants’ engagement was particularly determined by their identification as a Linux developer, by pragmatic motives to improve own software, and by their tolerance of time investments. Moreover, some of the software development was accomplished by teams. Activities in these teams were particularly determined by participants’ evaluation of the team goals as well as by their perceived indispensability and self-efficacy. 相似文献
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Along with the advent of Web 2.0, mass collaboration is of paramount importance in knowledge exploration and diffusion. However, the extent to which Internet-based collaboration technologies can be used to develop new knowledge and to leverage the wisdom of crowds heavily depends on the collective willingness to adopt such tools together. In this study, the adoption and use of instant messaging has been conceptualized as a group-referent intentional social action. The concept of ‘we-intention’, which refers to one's perception of the group acting as a unit, is the focus of our interest. The cognitive, affective and social dimensions that contribute to ‘we-intention’ to adopt and use instant messaging were investigated. A survey was conducted and the findings provided empirical evidence supporting the idea that cognitive, affective and social factors jointly lead to the development of we-intention. This study is expected to provide some useful insights to both researchers and practitioners. 相似文献
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随着信息技术的迅速发展,计算机和网络在考试管理中的应用逐步深入,考试管理中出现了网络化考试形式。网络化考试具有组织管理高效、考试时间灵活、监考难度较小、组考成本较低等特点,在多方面给考试管理带来更为深刻的影响,要求考试管理机构做出相应变革,以便适应考试自身发展的需要。 相似文献
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If the rhetorical and economic investment of educators, policy makersand the popular press in the United States is any indication, thenunbridled enthusiasm for the introduction of computer mediatedcommunication (CMC) into the educational process is wide-spread.In large part this enthusiasm is rooted in the hope that throughthe use of Internet-based CMC we may create an expanded communityof learners and educators not principally bounded by physicalgeography. The purpose of this paper is to reflect critically uponwhether students and teachers are truly linked together as a``community' through the use of Internet-based CMC. The paper usesthe writings of Kierkegaard, and Hubert Dreyfus's exploration ofKierkegaardian ideas, to look more closely at the prospects andproblems embedded in the use of Internet-based CMC to create ``distributed communities' of teachers and learners. It is arguedthat from Kierkegaard's perspective, technologically mediatedcommunications run a serious risk of attenuating interpersonalconnectivity. Insofar as interpersonal connectivity is an integralcomponent of education, such attenuation bodes ill for some, andperhaps many instances of Internet-based CMC. 相似文献
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Ulrika Josefsson 《The Information Society》2005,21(2):133-141
This article identifies and analyzes characteristics of patients' online communities (POC) in Sweden. Using a qualitative approach, it presents a fine-grained picture of the communities covering both the structural and cultural factors. Acknowledging the debate about quality of health information online and the potential risks of e-health, the article argues that a deeper understanding of the dynamics of POC, which offer unique aides for the coping process of chronically ill patients, can contribute to the design of the emergent forms of Internet-based health care resources. 相似文献
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建立中国资源环境数据仓库的研究 总被引：5，自引：0，他引：5
资源环境数据仓库是面向资源环境的、综合的、不同时间的、稳定的数据集合,将分散在全国各个部门、不同平台的资源环境数据,经过抽取、转化、集成,建立中国资源环境数据仓库,为我国资源环境的决策提供有力的技术支持。资源环境数据仓库中可以设置若干个决策目标主题,根据不同的决策目标过程的,使原数据得到增值和统一,并致力于知识的发展。资源环境数据仓库的实施平台必须是一个开放式的系统,能支持多种平台和多种数据库,要有基于Internet的决策支持工具和GIS应用工具,满足各种不同用户的需要。 相似文献
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Juan J. Palacios 《The Information Society》2003,19(1):69-79
Since its inception in the early 1990s, e-commerce has grown swiftly in Mexico, making inroads into some of the most dynamic sectors of the Mexican economy. The actual extent of e-commerce use, however, is still very limited, as diffusion is hindered by both the low income levels of most Mexican households and the fact that the overwhelming majority of business establishments are very small, lacking the resources to invest in computers and the business culture to go online. This article examines the emergence of e-commerce in Mexico arguing that the main drivers of the process have been the initiatives of large private firms and the work of specialized organizations. It concludes that this is not just a passing boom but a concrete step toward the rise of an Internet-based economy in Mexico along the lines of the New Economy that took shape in the United States in the 1990s and is assumed to spread into developing nations. 相似文献