谈《机械制图》课程的整合

为了更适应工科专科院校培养目标，针对目前《机械制图》课程在体系结构、教学内容与教学方法方面存在的弊端，谈《机械制图》课程体系改革与整合的方向、思路和方法。     

基于湿度控制技术的岩心电阻率测量研究

针对油田岩心室内试验中工作气体湿度控制现状，提出对在室内以气体为工作介质的试验流程中引用双压法气体湿度发生装置，从而获得已知湿度的工作气体进行岩心的常规试验．岩心电阻率测量的实验数据表明，控制工作气体的湿度，可提高试验结果的准确性．     

图书馆管理现状研究综述(2002～2003年)

本文搜集了2002～2003年有关图书馆管理方面的文献，通过研习和总结，对图书馆管理的理念、方法，数字图书馆管理等诸多方面及管理创新一些观点进行了横向的概括，勾勒出近年来图书馆管理研究的大致轮廓。     

Optimization of some factors affecting the performance of query expansion

This paper examines the factors affecting the performance of global query expansion based on term co-occurrence data and suggests a way to maximize the retrieval effectiveness. Major parameters to be optimized through experiments are term similarity measure and the weighting scheme of additional terms. The evaluation of four similarity measures tested in query expansion reveal that mutual information and Yule's Y, which emphasize low frequency terms, achieve better performance than cosine and Jaccard coefficients that have the reverse tendency. In the evaluation of three weighting schemes, similarity weight performs well only with short queries, whereas fixed weights of approximately 0.5 and similarity rank weights were effective with queries of any length. Furthermore, the optimal similarity rank weight achieving the best overall performance seems to be the least affected by test collections and the number of additional terms. For the efficiency of retrieval, the number of additional terms needs not exceed 70 in our test collections, but the optimal number may vary according to the characteristics of the similarity measure employed.     

高技术产业界定的神经网络方法

在分析国内外高技术产业界定方法以及动态界定要的基础上,探讨了人工神经网络方法在高技术产业界定方面的应用,并进行了相应的实证研究和分析。     

Overview of Preventive Conservation Research Work on Seismic Mitigation and Subway Vibration Control in Chengdu Museum of China

ABSTRACT

The 2008 Wenchuan earthquake brought numerous issues to the attention of researchers of seismic mitigation in Chinese museums. After the Wenchuan earthquake, the structural design team of Chengdu Museum conducted a series of research projects on seismic mitigation and subway vibration control design of buildings. These projects included the following topics: optimization of design, numerical simulation of seismic performance, analysis of key technologies for the base isolation structure, in-depth studies on structural vibrations caused by the nearby subway, and proposals for reducing structural vibrations. In 2015, after the superstructure of Chengdu Museum was completed, conservators evaluated the safety of permanent exhibitions under earthquake conditions. Seismic protection devices were installed on the showcases according to the preventive conservation requirements for museum collections. Reinforced measures were used for museum collections according to the methods suggested in the document ‘Specification for seismic protection of museum collection’ (WW/T 0069-2015). The conservators also built a systematic platform for earthquake monitoring for museum collections. Preventive conservation studies on seismic protection and subway vibration control in Chengdu Museum are summarized and forecasted.     

科学文献网络中的引文扩散——以2011年诺贝尔化学奖获奖论文为例

科学知识借助引用关系发生动态扩散,客观记录科学发展与演化的轨迹。由于知识之间存在千丝万缕的联系,以孤立的观点看待科学知识的影响与价值往往得到的是片面的感观。本文从联系的视角观察科学知识产出,尝试通过被引、引用、文献耦合与共被引等文献关系为单篇论著构建引文扩散网络,探讨"文献嵌入网络"的概念、测度方式及其在引文扩散过程中起到的特殊作用。案例分析显示,科学知识的形成相伴于科学知识网络的发展,同时也受到这个网络的影响:科学知识向科学领域的扩散,遵循从核心领域向周边领域的扩散模式;施引文献可以揭示目标文献中没有显式呈现的信息;四种文献关系之间可能存在相当程度的重合,引文扩散过程显示出知识的"黏滞性"与非常明显的"小世界"特征。对科学产出的扩散网络进行量化有助于为全面评价其价值提供更多客观依据。     

Using A Split-ballot Survey to Explore the Robustness of the 'MIP' Question in Agenda-Setting Research: A Methodological Study

Three aspects of the ‘most important problem’ questionused in agenda-setting research to measure issue salience amongthe public were examined. A split-ballot design in a state-widesurvey compared versions of the public agenda with a socialframe of reference versus a personal frame of reference, versionsusing the traditional term ‘problem’ versus ‘issue’,and the effects of question order. High correlations betweenthe different versions were found in all three sets of comparisons.     

论《切韵》敦煌写本及传世本之正字观

《切韵》在唐代地位很高,后来经过各家的增字加训,使它成为具有字书性质的一部规范用书,起到"字该样式"的作用.本文以敦煌残卷伯2129王仁昫《刊谬补缺切韵》为主,围绕现存《切韵》的其他写本,探讨唐代韵书中各家的正字原则,了解它们的用字特点和变化,有助于我们今天对汉字整理和规范以及汉字简化的正确认识.     

《新世训》何以为“训”

针对冯友兰先生在抗日战争时期以生活方法新论为副标题的《新世训》何以为“训”来展开论述,其一它是“接着讲”而并非“照着讲”;其二它是“周全之道”而并非“偏至之端”。