多自由度刚性杆系静平衡计算     

沈健  董达善 《上海海事大学学报》2003,24(2):146-149

介绍了多自由度刚性杆系静平衡的分析计算。通过调整初始设计中杆件的长度来优化系统。这对于大型起重机前大梁拉杆系统以及一些相关系统的设计优化有一定的实际参考及应用价值  相似文献   

运动中的酸碱平衡与碱盐摄入     

王晨 《体育科研》2003,24(4):60-61

采用文献资料法对人体酸碱平衡机制进行分析研究,并对碱盐摄入与对运动员成绩的影响进行了探讨,结果认为适当碱盐摄入对提高运动成绩有帮助.  相似文献   

家庭心理治疗简述   总被引：2，自引：0，他引：2  

曲燕  衣焕辉 《烟台职业学院学报》2004,10(2):63-65

家庭心理治疗是一种将家庭作为治疗对象进行的心理治疗 ,它通过建立良好家庭心理气氛与家庭成员之间的心理相容而达到治疗的目的。本文着重介绍了家庭心理治疗的起源、发展、现状、相关理论及其相应的评价  相似文献   

对天水市物业管理问题的思考     

何建华  王建强 《天水师范学院学报》2001,21(4):62-64

天水市物业管理尚处于起步阶段,存在的问题很多,主要表现在法制建设滞后、建管不分、小区居民对新的物业管理概念认识不清、公司内部人员素质差、服务意识不强、专业人才短缺、资金不足、服务项目少、管理水平低等方面.针对上述问题,起步阶段的天水市物业管理应突出强调服务意识,政府、开发商、物业管理公司、业主四方联动,建立健全各项法规制度,促进天水市物业管理的快速发展,以适应城市现代化建设的要求.  相似文献   

数字图书馆数据安全技术的新进展及应用研究   总被引：1，自引：0，他引：1  

王东波  张宏涛 《图书馆学研究》2008,(6):7-11

数据安全对数字图书馆来讲至关重要,不可或缺.本文对当前国内外数字图书馆的数据安全技术发展进行了追踪和研究,从图书馆数据安全技术最新进展、数据安全技术的具体应用策略二方面对当前数字图书馆的数据安全体系建设进行了全面构建,并对数据安全技术未来的发展进行了简要分析.  相似文献   

The Concept of Record in Interactive, Experiential and Dynamic Environments: the View of InterPARES*     

Luciana Duranti  Kenneth Thibodeau 《Archival Science》2006,6(1):13-68

This article presents the concept of electronic record as articulated by the first phase of the InterPARES (International research on Permanent Authentic Records in Electronic Systems) Project (1999–2001) and discusses it in light of the findings of the second phase of the Project (2002–2006). While InterPARES 1 focused on records produced and/or maintained in databases and document management systems, InterPARES 2 examined records produced and/or maintained in interactive, experiential and dynamic environments. The authors describe the characteristics of these environments and of the entities found in them in the course of case studies conducted on systems used for carrying out artistic, scientific and e-government activities, and propose the new concept of record that InterPARES 2 is eleborating, which expands on that formulated by InterPARES 1.The authors would like to thank InterPARES 2 research assistant Randy Preston for his careful editing and constructive criticisms. Some of his suggestions have been incorporated in the text of this article.  相似文献   

Concept Relationships in Knowledge Organization Systems: Elements for Analysis and Common Research Among Fields     

Walter Moreira 《Cataloging & classification quarterly》2018,56(1):19-39

Knowledge organization systems have been studied in several fields and for different and complementary aspects. Among the aspects that concentrate common interests, in this article we highlight those related to the terminological and conceptual relationships among the components of any knowledge organization system. This research aims to contribute to the critical analysis of knowledge organization systems, especially ontologies, thesauri, and classification systems, by the comprehension of its similarities and differences when dealing with concepts and their ways of relating to each other as well as to the conceptual design that is adopted.  相似文献   

Granularity of algorithmically constructed publication-level classifications of research publications: Identification of topics     

Peter Sjögårde  Per Ahlgren 《Journal of Informetrics》2018,12(1):133-152

The purpose of this study is to find a theoretically grounded, practically applicable and useful granularity level of an algorithmically constructed publication-level classification of research publications (ACPLC). The level addressed is the level of research topics. The methodology we propose uses synthesis papers and their reference articles to construct a baseline classification. A dataset of about 31 million publications, and their mutual citations relations, is used to obtain several ACPLCs of different granularity. Each ACPLC is compared to the baseline classification and the best performing ACPLC is identified. The results of two case studies show that the topics of the cases are closely associated with different classes of the identified ACPLC, and that these classes tend to treat only one topic. Further, the class size variation is moderate, and only a small proportion of the publications belong to very small classes. For these reasons, we conclude that the proposed methodology is suitable to determine the topic granularity level of an ACPLC and that the ACPLC identified by this methodology is useful for bibliometric analyses.  相似文献   

Adverse Events Reported From  COVID-19 Vaccine Trials: A Systematic Review     

Rimple Jeet Kaur  Siddhartha Dutta  Pankaj Bhardwaj  Jaykaran Charan  Sameer Dhingra  Prasenjit Mitra  Kavita Singh  Dharmveer Yadav  Praveen Sharma  Sanjeev Misra 《Indian journal of clinical biochemistry : IJCB》2021,36(4):427

  相似文献   

What factors increase Dutch child health care professionals’ adherence to a national guideline on preventing child abuse and neglect?     

《Child abuse & neglect》2016

Guidelines to support health care professionals in early detection of, and responses to, suspected Child Abuse and Neglect (CAN) have become increasingly widely available. Yet little is known about professionals’ adherence to these guidelines or the determinants that affect their uptake. This study used a cross-sectional design to assess the adherence of Dutch Child Health Care (CHC) professionals to seven key activities described in a national guideline on preventing CAN. This study also examined the presence and strengths of determinants of guideline adherence. Online questionnaires were filled in between May and July 2013 by 164 CHC professionals. Adherence was defined as the extent to which professionals performed each of seven key activities when they suspected CAN. Thirty-three determinants were measured in relation to the guideline, the health professional, the organisational context and the socio-political context. Bivariate and multivariate regression analyses tested associations between determinants and guideline adherence. Most of the responding CHC professionals were aware of the guideline and its content (83.7%). Self-reported rates of full adherence varied between 19.5% and 42.7%. Stronger habit to use the guideline was the only determinant associated with higher adherence rates in the multivariate analysis. Understanding guideline adherence and associated determinants is essential for developing implementation strategies that can stimulate adherence. Although CHC professionals in this sample were aware of the guideline, they did not always adhere to its key recommended activities. To increase adherence, tailored interventions should primarily focus on enhancing habit strength.  相似文献