基于角色的数字图书馆知识产权初始推定   总被引：1，自引：0，他引：1  

向建军  陈雪 《图书馆学研究》2006,(4):28-30

本文从数字图书馆的角色出发，简要分析了数字图书馆可能遇到的知识产权问题以及基于其角色的知识产权初始推定.  相似文献   

China's statistical system and resources     

Susan Xue 《Journal of Government Information》2004,30(1):87-109

As the People's Republic of China plays an increasingly important role in international politics and trade, countries with economic interests there find they need to know more about this nation. Access to primary information sources, including official statistics from China, however, is very limited, as little exploration has been done into this closely controlled repository of information. This study explores major current statistical sources in China through examining (a) the statistical system in Chinese government, (b) the mechanism of statistical data collection, and (c) what statistical information is currently available in both print and electronic format and at what level. It shows that a wealth of statistical information does exist in China, it is systematically compiled, and it is available, although not conveniently, to the public through various channels. This study can serve the need for China's data from the academic and business communities, contribute to a better understanding of China's statistical system, and serve as a collection tool for academic, public, and corporation libraries as well.  相似文献   

1949～2003年我国图书馆学基础理论研究名篇述要   总被引：4，自引：1，他引：4  

肖雪 《图书馆》2005,(6):42-46

本文选介了1949-2003年图书馆学基础理论研究的一些重要论文，以此勾勒我国图书馆学基础理论的发展概貌。  相似文献   

信息网格技术的研究和实现   总被引：3，自引：0，他引：3  

薛广涛  李明禄  洪锋  刘飞 《现代图书情报技术》2005,21(9):6-9

信息网格是网格技术的重要应用模式，本文在分析网格技术的基础上介绍了信息网格的应用背景、定义，讨论了信息网格的关键技术，并详细介绍了信息网格的典型事例——上海网格。  相似文献   

科技期刊利用互联网资源进行策划组稿的实践——以《国际检验医学杂志》为例     

舒安琴  周晓凤  姚雪  王东  邓丽莉 《编辑学报》2018,30(3):307-309

对于科技期刊而言,质量仍然是期刊可持续发展的根本.提高科技期刊质量的途径和方法很多,其中,编辑部主动向专家进行组稿约稿是科技期刊始终保持在同质期刊中的权威性,提升期刊质量和影响力最常见又切实可行的方法.本文以《国际检验医学杂志》为例,探讨如何利用互联网资源,如微信“问卷星”调查、百度学者、国家自然科学基金委员会官网等,及时了解专家的论文影响力、研究方向和最新成果等,并进行精准的策划组稿,取得较好效果.  相似文献   

硝化法合成邻硝基苯甲醛     

任谦 《泰州职业技术学院学报》2004,4(1):27-28

通过硝化法合成邻硝基苯甲醛实验的比较，介绍A法的反应原理及实验。  相似文献   

Precision measurement of the Newtonian gravitational constant     

Chao Xue  Jian-Ping Liu  Qing Li  Jun-Fei Wu  Shan-Qing Yang  Qi Liu  Cheng-Gang Shao  Liang-Cheng Tu  Zhong-Kun Hu  Jun Luo 《国家科学评论(英文版)》2020,7(12):1803

The Newtonian gravitational constant G, which is one of the most important fundamental physical constants in nature, plays a significant role in the fields of theoretical physics, geophysics, astrophysics and astronomy. Although G was the first physical constant to be introduced in the history of science, it is considered to be one of the most difficult to measure accurately so far. Over the past two decades, eleven precision measurements of the gravitational constant have been performed, and the latest recommended value for G published by the Committee on Data for Science and Technology (CODATA) is (6.674 08 ± 0.000 31) × 10⁻¹¹ m³ kg⁻¹ s⁻² with a relative uncertainty of 47 parts per million. This uncertainty is the smallest compared with previous CODATA recommended values of G; however, it remains a relatively large uncertainty among other fundamental physical constants. In this paper we briefly review the history of the G measurement, and introduce eleven values of G adopted in CODATA 2014 after 2000 and our latest two values published in 2018 using two independent methods.  相似文献   

余华小说《第七天》中的生与死     

王雪 《四川教育学院学报》2014,(8):64-66

《第七天》是余华继《兄弟》七年之后完成的最新一部长篇小说，描绘了主人公死去后所经历的事情以及勾起的回忆，为读者展现了一个平等、和谐的死亡世界。经过分析，作品中的生死问题包括三个方面：作品中的人物对死亡没有痛苦或恐惧，能够理性地看待死亡；生与死的意义被颠倒，死亡世界接近理想中的现实世界，更加引人向往；生与死由“爱”这条纽带联系起来，让人们在冰冷中感受到温情。这部小说暴露了大量的社会现实，引人深思，也备受争议。  相似文献   

Wearable skin-like optoelectronic systems with suppression of motion artifacts for cuff-less continuous blood pressure monitor     

Haicheng Li  Yinji Ma  Ziwei Liang  Zhouheng Wang  Yu Cao  Yuan Xu  Hua Zhou  Bingwei Lu  Ying Chen  Zhiyuan Han  Shisheng Cai  Xue Feng 《国家科学评论(英文版)》2020,7(5):849

According to the statistics of the World Health Organization, an estimated 17.9 million people die from cardiovascular diseases each year, representing 31% of all global deaths. Continuous non-invasive arterial pressure (CNAP) is essential for the management of cardiovascular diseases. However, it is difficult to achieve long-term CNAP monitoring with the daily use of current devices due to irritation of the skin as well as the lack of motion artifacts suppression. Here, we report a high-performance skin-like optoelectronic system integrated with ultra-thin flexible circuits to monitor CNAP. We introduce a theoretical model via the virtual work principle for predicting the precise blood pressure and suppressing motion artifacts, and propose optical difference in the frequency domain for stable optical measurements in terms of skin-like devices. We compare the results with the blood pressure acquired by invasive (intra-arterial) blood pressure monitoring for >1500 min in total on 44 subjects in an intensive care unit. The maximum absolute errors of diastolic and systolic blood pressure were ±7/±10 mm Hg, respectively, in immobilized, and ±10/±14 mm Hg, respectively, in walking scenarios. These strategies provide advanced blood pressure monitoring techniques, which would directly address an unmet clinical need or daily use for a highly vulnerable population.  相似文献   

学历教育院校实验室建设与管理     

齐京礼  孙福  任宝荣  何建强 《实验室研究与探索》2007,26(1):116-117,135

针对学历教育院校的特点,从实验室管理体制、运行机制等8个方面,论述了如何加强实验室建设与管理,更好地为培养高素质军事人才服务。  相似文献