预应力现浇箱梁施工工艺及质量控制探讨

现浇箱梁有很多优点，但由于预应力现浇箱梁属于超静定结构，造成和简支梁不一样的受力特点，其施工工艺较复杂，技术要求比较高。本文重点对预应力现浇梁施工的工艺和在施工过程中质量控制做进一步的讨论。     

化工专业《试验设计与数据处理》教学方法探讨

经过几十年的发展与实践,试验设计与数据处理在我国经济发展中的重要性有目共睹。目前,大多数高校化学相关专业的本科生和研究生均开设了这门工具课。本文从教材的选择、教学内容、教学方式和课程考查方式等几方面进行了探讨。探讨该课程的教学方法,有利于激发学生的学习热情和学习兴趣,从而提高教学质量。     

浅议酒钢科技项目管理工作

科技项目的实施是促进企业技术进步的有效手段之一，如何管好科技项目，使其为公司生产经营建设发挥技术支撑作用，将是企业管理的一项重要工作。本文主要介绍酒钢科技项目管理的现状，分析加强科技项目管理对企业研发及生产经营的必要性和重要性，提出加强科技项目管理的措施和方法。     

化学平衡及化学反应速率概念及其关系探讨

阐述了化学平衡及化学反应速率的概念,分析了化学反应速率与化学平衡移动的关系。指出了化学反应速率变化时化学平衡必发生移动。明确了化学平衡和化学反应速率不属于同一学科体系,而是2个独立的学科。     

厦门市汀溪灌区总干渠洪水复核方法探讨

汀溪灌区作为汀溪水库群的农业供水对象,其灌溉用水量的大小直接关系到汀溪水库群向翔安、同安两区的水资源供需平衡,甚至影响厦门市水资源配置方案。但由于灌溉面积和渠道功能发生变化,有必要进行洪水分析复核从而重新确定工程规模。本文对汀溪灌区总干渠洪水复核方法进行探讨,供参考。     

陇东地区立井凿井法问题初探

本文通过调研和现场施工实际资料,分析探讨了甘肃陇东地区煤矿立井施工面临的问题,提出了个人的意见和建议,可供本地区煤矿建设工程参考和借鉴。     

Instrument mediated activity: from subject development to anthropocentric design

The aim of this article is to present the ‘instrument-mediated activity’ approach, which is part of a ‘generative model’. A group of principles liable to contribute to the epistemological unity of generative models is put forward as well as a theoretical framework that conceptualizes what an instrument is for the subject. The article develops the idea that the instrument is a mixed entity born of both the subject and the artifact. The artifact is not an instrument in itself. It is the subject who grants it the status of a means for his/her action. Processes of design in usage by users are defined as ‘instrumental geneses’. Finally, the consequences of this model on the organization of design processes are examined, in taking into account instrumental geneses as resources for design.     

Who will cross the border? – The transition of political discussion into the newly emerged venues

This study explores the political implications of new communication technologies with a focus on their role as political discussion venues. Assuming that new technologies could expand the sphere for political discourse, we investigate the transition of citizens’ face-to-face political discussion into the computer-mediated online context. With analyses of a representative sample of US adults, this study explicates the link between the traditional and newly emerged discussion venues online. Our results reveal that significant differences in the transition pattern arise from variances in citizens’ political interest and age. In addition, in an attempt to reconcile the two seemingly conflicting hypotheses, we examine the role of political interest and age in the transition process within one integrated theoretical framework. Our findings highlight the conditions under which the democratic potential of the new venues becomes magnified, and draws attention to the importance of examining the dynamics underlying the transition of discussion venues.     

山区公路复杂路段局部路线方案的比选论证

通过对国道214线结古至巴塘机场路线方案的介绍,结合山区公路的特点,对复杂路段路线方案的比选要点进行探讨,以期能对今后的山区高等级公路路线方案的比选论证有所帮助。