媒体变革对科学传播的影响     

黄可心 《情报科学》2007,25(9):1329-1331,1440

现代传媒的发展速度超过了以往任何一种传媒形式，并承担着比以往任何时代都更为有效的科学传播的责任。媒体变革对科学传播的影响极为直接，而科学的有效传播又成为提高公众科学素养的最重要的途径。  相似文献   

一种有效的数据仓库定制应用方式     

王国友  王命延 《科技广场》2004,(8):27-29

本文介绍了如何利用DELPHI中的数据仓库组件开发数据仓库应用系统，为用户提供一种有效的定制的数据仓库应用方式，利用此组件可进行灵活的多维数据分析。  相似文献   

An empirical investigation of information sharing behavior on social commerce sites     

《International Journal of Information Management》2016,36(5):686-699

Social commerce sites (SCSs), a new model of social media, provide fertile ground for customers to communicate their opinions and exchange product- or service- related information. Given the significant opportunities related to the use of social media data for customers’ insight, we explore the factors driving information sharing behavior on SCSs. In this paper, we propose and empirically test a comprehensive theoretical model for customer information sharing behavior through analysis of online survey data as well as network and behavioral usage data of over four months from 1177 customers in a SCS. The research model was empirically validated with the use of both subjective and objective data in a longitudinal setting. Our results show that customer information sharing is influenced by both individual (i.e., reputation and the enjoyment of helping others) and social capital (i.e., out-degrees’ post, in-degrees’ feedback, customer expertise and reciprocity) factors. This study contributes to the existing literature by highlighting the role of directed social network in customer information sharing behavior on SCSs. We believe that the results of our study offer important insights to the IS research and practice.  相似文献   

Bibliometric maps of field of science   总被引：2，自引：1，他引：2  

Irina Marshakova-Shaikevich 《Information processing & management》2005,41(6):1534-1547

The present paper is devoted to two directions in algorithmic classificatory procedures: the journal co-citation analysis as an example of citation networks and lexical analysis of keywords in the titles and texts. What is common to those approaches is the general idea of normalization of deviations of the observed data from the mathematical expectation. The application of the same formula leads to discovery of statistically significant links between objects (journals in one case, keywords — in the other). The results of the journal co-citation analysis are reflected in tables and map for field “Women’s Studies” and for field “Information Science and Library Science”. An experimental attempt at establishing textual links between words was carried out on two samples from SSCI Data base: (1) EDUCATION and (2) ETHICS. The EDUCATION file included 2180 documents (of which 751 had abstracts); the ETHICS file included 807 documents (289 abstracts). Some examples of the results of this pilot study are given in tabular form . The binary links between words discovered in this way may form triplets or other groups with more than two member words.  相似文献   

城市形象传播:观念角色路径     

韩隽 《科学．经济．社会》2007,25(3):125-128

现代传媒对城市形象的传播作用不可替代,它自身具备的强大功能影响着城市的形象。本文对城市形象传播中传媒的角色定位进行分析,研究促进城市形象塑造的传播路径。认为媒体应发掘城市精神,建构城市主体文化,既成为沟通政权、资本和智慧的桥梁,同时对内扶助城市人群形成特有的文化归属意识,对外形成良好声誉。  相似文献   

Epochē, Entertainment and Ethics: On the Hyperreality of Everyday Life     

Charles?W.?HarveyEmail author 《Ethics and Information Technology》2004,6(4):261-269

In this essay, I argue that popular entertainment can be understood in terms of Husserl’s concepts of epochē, reduction and constitution, and, conversely, that epochē, reduction and constitution can be explicated in terms of popular entertainment. To this end I use Husserl’s concepts to explicate and reflect upon the psychological and ethical effects of an exemplary instance of entertainment, the renowned Star Trek episode entitled “The Measure of a Man.” The importance of such an exercise is twofold: (1) to demonstrate, once again, the fecundity of the methodological procedures Husserl bequeathed to us; more than any other philosopher, he tapped into the fundamental manners in which we lose, make and remake the meanings of our lives; and (2) to demonstrate how popular entertainment, similarly, plays a central role in the making and remaking of the meanings of our lives. If my zig-zag procedure between Husserl’s philosophy and popular entertainment is productive and cogent, in addition to elucidating Husserl’s philosophy, it will demonstrate the reality-generating potency and the constitutive power of entertainment in the contemporary world. Entertainment, via ourselves, has become the primary producer of the meanings via which consciousness constitutes the world.  相似文献   

考虑管间液滴形成和下落过程的吸收器模拟及分析     

王照亮  唐大伟 《中国科学院研究生院学报》2006,23(4):457-464

针对以溴化锂水溶液为工质的水平管吸收器，考虑管底部液滴形成和管间下落过程，建立了描述管间滴状形成和下落吸收过程传热传质耦合数学模型。根据数值计算结果，分析了溶液温度、浓度和吸收速率沿管排不同位置和水平管管间的变化，分析了管间距对吸收器整体传热传质性能的影响。结果表明，滴状吸收过程约占总吸收量的30%。与实验数据的对比说明提出的数学模型是合理的。  相似文献   

基于战略生态位管理理论的众创空间五元评价模型构建     

罗嘉文  陈晓雪 《科技管理研究》2020,40(14):99-106

众创空间作为开放式创新生态系统,具有多主体、多要素、多功能的特点,需要依托行之有效的评价指标体系推动技术创新培育、监督规范管理行为、优化众创空间效率,为产学研深度融合提供有力支撑。目前,以战略生态位管理理论为核心的众创空间管理评价体系仍有待完善,特别是在众创空间的具体功能定位差异、成员准入规则设计、创业要素互构作用、评价指标建模细节等均缺乏实证探析。结合技术创新发展的自身特点,立足调研数据,通过对众创空间主体、客体及环境等要素的梳理,着重挑选与分析和众创空间功能发挥息息相关的预期、网络、学习、市场培育与市场保护因素,运用德尔菲法确定各项指标权重,应用多层次模糊综合评定法阶梯式递进评价,构建完善"投入-产出"三形态两阶段模型,并以广东省众创空间为实例检验评价效果。结论证明,通过加强创业前景规划、规范空间运行、优化革新技术服务、优化市场孵化服务、增强创业市场产出,可有效提升众创空间的实际运行效能。  相似文献   

生产模式描述工具及其应用研究     

唐中君  陈荣秋  纪雪洪 《预测》2006,25(1):8-16

基于图形语言的优点,对能描述生产模式的复杂性、集成性和系统性特点的工具进行了研究。在提出生产模式的基本构成要素的基础上,首先阐述了现有图形语言工具描述生产模式时的局限性,然后以大量生产为例提出了一种从整体描述生产模式的图形语言工具“生产模式树”,并进一步提出了生产模式树应该满足的标准、绘制方法厦生产模式树的优点。最后,运用生产模式树提出了一个体现大量定制中观层理论体系的运作模型。  相似文献   

极限组织的概念、框架与网络化生存     

卢致杰  覃正 《软科学》2005,19(1):1-4,8

首先研究了组织理论在发展过程中遇到的新问题,而后运用信息技术对组织理论进行拓展,建立了网络环境下超越时间与空间限制的极限组织理论框架体系,描述了极限组织构架的“轻量级”实现方法以及“点击熵”知识的获取过程;最后分析极限组织的网络化生存战略。  相似文献