移动环境下基于隐性评分的博客推荐技术

在移动环境下让用户对博客进行直接评分有很多弊端.因此,如何获取用户对博客的评分信息已成为一个亟待解决的问题.基于隐性评分技术,通过分析用户阅读博客时的阅读速度和阅读文章的比例,计算出用户对博客的偏好信息,进而将传统的基于项目的协同过滤技术应用到博客推荐中,提出了移动环境下基于隐性评分的协同过滤博客推荐技术.最后,通过实验证明该技术可以在移动环境下有效地为用户推荐符合其兴趣的博客.     

Experimental Investigation into Magnetorheological Damper Subjected to Impact Loads

A good mechanical model of magnetorheological damper (MRD) is essential to predict the shock isolation performance of MRD in numerical simulation. But at present, the mechanical models of MRD were all derived from the experiment subjected to harmonic vibration loads. In this paper, a commercial MRD (type RD-1005-3) manufactured by Lord Corporation was studied ex-perimentally in order to investigate its isolation performance under the impact loads. A new me-chanical model of MRD was proposed according to the data obtained by impact test. A good agreement between the numerical results and test data was observed, which showed that the model was good to simulate the dynamic properties of MRD under impact loads. It is also demon-strated that MRD can improve the acceleration and displacement response of the structure obvi-ously under impact loads.     

LOGO!在《工厂供电》课程中的应用

文章提出了用LOGO！对《工厂供电》课程中双电源互为备用控制电路进行控制的方案，设计出了硬件接线图、程序状态转移图和逻辑图。     

数列中的"洛必达法则"

首先将洛必达法则条件弱化,然后给出数列极限中0/0型、∞/∞型的类似形式的定理,并举例说明定理的运用。     

A Comparative Study of Digital Library Use: Factors, Perceived Influences, and Satisfaction

This study explores the extent to which undergraduate and graduate students in China differ in their digital library use. Unlike the factors promoting digital library use, non-use factors, perceived influences, and degree of satisfaction are quite different between undergraduate and graduate students due to their differing emphases and expectations for information. The implications for digital library services are also discussed.     

民国档案抢救工作的得失及发展方向

文章归纳了国家重点档案——民国档案抢救工作开展以来取得的成效和意义:如提高了认识、投入了资金、培养了人才、改善了保管保护条件等;总结了缺乏规划、资金不足、技术水平不高、档案在抢救中损害和整理不规范的教训;提出了强化规划、加大投入、科学抢救、原生态保护、发掘珍品档案和推进数字化的观点,使民国档案抢救保护工作在科学的基础上...     

Trends in transforming scholarly communication and their implications

Scholarly communication is undergoing transformation under the confluence of many forces. The purpose of this article is to explore trends in transforming scholarly publishing and their implications. It examines how collaboration and volume of information production were changed over the past century. It also explores how older documents are used under today’s network environment where new information is easily accessible. Understanding these trends would help us design more effective electronic scholarly publishing systems and digital libraries, and serve the needs of scholars more responsively.     

试论教学组织形式的改革

教学组织形式是在改革中不断发展完善的。新的教学组织形式的出现是由社会生产力和科技水平的发展等因素决定的。单一的课堂教学模式与多种教学组织形式并存,各种教学组织形式相互渗透、相互借鉴是教学组织形式发展的趋势。     

中华医学会系列杂志审稿机制探析

对中华医学会系列杂志现行审稿机制进行分析,认为在新形势下既要注重审稿质量控制,也应对创新性研究给予积极鼓励;应在量化审稿,缩短审稿周期以及统计学审稿等方面进一步改进和完善审稿机制。     

《中华外科杂志》在国内外科类期刊中的地位及其影响力——文献评价计量指标分析

通过中国科学引文数据库(CSCD)和<中国科技期刊引证报告>(CJCR)近几年公布的中文科技期刊被引频次、影响因子两项主要文献评价计量指标,对<中华外科杂志>在国内外科类期刊中的地位和影响力进行分析和评价.结果显示,<中华外科杂志>在CSCD和CJCR两个著名数据库公布的被引频次、影响因子两项主要文献评价计量指标中均位居前列.研究结果表明,作为创刊较早的外科综合性期刊,<中华外科杂志>所发表论文的影响力是广泛而深远的;在现阶段,<中华外科杂志>在国内外科类医学期刊中仍具明显的领先优势.