与时俱进,实现电子政务信息资源的科学管理--读《电子政务信息资源管理》     

唐重振 《图书情报知识》2005,(5):112-112,F0003

本文从理论与实践方面，评介了《电子政务信息资源管理》的若干特点。  相似文献   

书生数字图书馆系统通过国家科技部创新基金项目验收     

刘文梅  唐淑娟 《大学图书馆学报》2005,23(5):24-24

近日,“书生数字图书馆系统”顺利通过北京市科学技术委员会组织的国家科技部创新基金项目验收评审会的验收,得到专家组的一致肯定和好评。书生公司的核心技术实力及在数字图书馆领域的成功应用得到认可。专家组首先听取了项目承担单位北京书生公司的《总结报告》以及利安达信隆会计师事务所有限责任公司的《专项审计报告》。随后观看了项目产品演示,并检查了合同执行情况。经研究得出结论认为,该项目资料齐全、规范,项目投资结构、用款计划及各项经济指标清楚、合理,比较出色地完成了合同规定指标。同时,经过北京市信息产品质量检查站及用…  相似文献   

Editorial zum Themenheft: ?‘Software-Reengineering“’     

Jürgen Ebert  Franz Lehner  Volker Riediger und Andreas Winter 《Informatik - Forschung und Entwicklung》2005,19(3):125-126

Ohne Zusammenfassung  相似文献   

一阶扩展Cooper变换改进型     

李芬兰  陈庆锋  唐柳英 《广西师范大学学报(哲学社会科学版)》1996,(Z2)

提出一种一阶扩展A型Cooper变换改进型模式,用结构归纳法证明了其正确性,并给出应用示例。  相似文献   

Why Users Share the News: A Theory of Reasoned Action-Based Study on the Antecedents of News-Sharing Behavior     

Veronika Karnowski  Larissa Leonhard  Anna Sophie Kümpel 《Communication Research Reports》2018,35(2):91-100

Social media have become an integral part of online news use, affecting how individuals find, consume, and share news. By applying the Theory of Reasoned Action (TRA), this study investigates the effects of motives, attitude, and intention on news-sharing behavior among German social media users (n = 333). Findings show that news-sharing attitude and subjective norms have a positive effect on news-sharing intention, which in turn has a positive effect on actual news-sharing behavior. Taken together, we see that a new media behavior in the early phases of its societal diffusion—like social media news sharing in Germany in 2015—can mainly be explained by a rational choice logic and is rooted in the motives of socializing and information seeking. This finding thus reflects the double nature of social media as a means for both information retrieval and social grooming.  相似文献   

Out of Sight, (Not Yet) Out of Mind: The Impact of Tie Strength on Direct Interaction and Social Surveillance Among Geographically Close and Long-Distance Facebook Friends     

Kevin Koban  Sophie Krüger 《Communication Research Reports》2018,35(1):74-84

Social networking sites are considered a valuable resource to maintain existing friendships even over considerable distances. The present study emphasizes tie strength as a crucial determinant for the use of interactive and passive features among 302 active Facebook users and friends of different relational closeness (close friends vs. casual friends vs. acquaintances) as well as a moderator for the impact of physical distance. As expected, tie strength affected direct interaction linearly, whereas social surveillance followed a quadratic trend. Furthermore, moderation analyses revealed less frequent direct interaction between close friends and stronger surveillance of casual friends’ profiles as physical distance increases. These results indicate different functions in relationship maintenance for both behaviors as direct interaction aims at nurturing current relationships, while surveillance serves as a catalyst for promising future communications. As a consequence, physical distance influences direct interaction adversely due to emerging constraints but also contains informational value encouraging information-seeking behaviors.  相似文献   

From Archive,to Access,to Experience––Historical Documents as a Basis for Immersive Experiences     

Jiawei Huang  Mahda M. Bagher  Heather Dohn Ross  Nathan Piekielek  Jan Oliver Wallgrün  Jiayan Zhao 《Journal of Map & Geography Libraries》2018,14(1):40-63

Libraries have been the key to preserving culture and historic legacy for centuries. One such treasure cataloged in The Pennsylvania State University (Penn State) Libraries is a collection of over 33,000 Sanborn? Fire Insurance Maps. Originally kept safe in metal drawers, the library has embarked on a journey to digitize this abundance of information, combine it with other media such as photographs, and make it accessible through a web interface. Inspired by these efforts, we accessed this information and took it to the next level. Using state of the art 3D modeling and immersive technologies, we created a historic 3D model and immersive experiences of Penn State, exemplarily for the 1922 campus. The resulting experiences can be accessed through the web but also through head mounted displays (HMDs) and mobile phones in combination with VR viewers such as the Google Cardboard. Additionally, they can be used anywhere in the world or on the campus itself as a way to enable remote and in situ experiences and learning. Immersive experiences let us connect to the past, the present and the future, and as such offer value to digital cultural heritage efforts.  相似文献   

小小一槽水,激活一堂课——有感于一节物理课的导入     

汤卫东 《物理教学探讨》2007,25(2)

在一节讲授《光的反射》的课堂上,老师先在讲台上放上一槽水,等水面静止后,用手电筒光倾斜照射水面,让学生在教室的墙壁上寻找亮斑,然后改变手电筒照射的角度,  相似文献   

DSⅡ方程的Darboux变换及其孤立子解     

唐国雄 《黄冈师范学院学报》1992,(3)

本文找到了DSⅡ方程的Darboux变换,利用所给出的Darboux变换求得了DS Ⅱ方程的一簇解。还利用[1]中给出的规范变换自然地得到(2+1)维Heisenberg链的无限多个解。  相似文献   

《雾都孤儿》中的反讽艺术研究     

唐建福 《呼伦贝尔学院学报》2020,28(4):77-81

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