小车河铁路隧道边坡的加固方案分析

边坡稳定是一个非常复杂的问题,文章采用有限元分析法(运用有限元软件ANSYS),通过对毗邻小车河铁路隧道的房产开发项目的基坑开挖过程进行数值模拟分析,从理论上得出了该工程对既有铁路隧道影响程度,同时提出相应的加固处理建议。     

砌体球形薄壳下钢筋混凝土环梁的构造与施工

文章详细介绍了地下砌体球壳结构下钢筋混凝土环梁的构造特点,阐述了圆形构件的施工要点和技术方法。     

地下连续墙在地铁站深基坑支护中的应用

文章介绍了在天津市地铁大厦暨地铁海光寺站工程中,深基坑支护采用地下连续墙工程的特点、施工技术和应用情况,为城市建筑物密集区的超高层建筑深基坑支护及施工提供了经验。     

The RAS Approach in Updating Input–Output Matrices: An Instrumental Variable Interpretation and Analysis of Structural Change

The main purposes of the paper are to reconsider the rationale of the RAS method, and to attempt to improve on its interpretation and usefulness. The substitution and fabrication factors in the RAS method are interpreted as statistical estimates obtained by the method of instrumental variables. This enables the computation of asymptotic standard errors for the factors and the relative precision of the predicted technical coefficients. Furthermore, an adjustment cost minimization model to describe how a sector determines its substitution and fabrication factors is presented. The solutions of the model provide another rationale for the RAS method, and the associated Lagrangian multipliers can be useful for assessing structural constraints and structural change.     

悬臂构件承载力不足的补偿方法

针对有些悬挑构件后来增加立柱支顶的实际工程问题，作者提出了简便合理的承载力补偿方法，并通过进一步的力学分析，证实其可行性和合理性，可供处理类似工程问题参考。     

Bidder Gains and Losses of Firms Involved in Many Acquisitions

Abstract:  We examine shareholders' wealth effects (both in the short- and the long-run) of UK frequent bidders acquiring public, private, and/or subsidiary targets with alternative methods of payment between 1987 and 2004. We find that, in the short-run, bidders break even when acquiring public targets and gain significantly when buying private and subsidiary targets. This result is robust after controlling for relative size, bidder's book-to-market ratio, target origin, and industry diversification. Our long-run evidence, however, reveals that acquirers experience, significant wealth losses regardless of the target type acquired, indicating that markets may initially overreact to the acquisition announcement. As a result, we argue that contrary to Fuller et al. (2002) who suggest that acquiring private and subsidiary firms creates value for bidding firms, a reliable conclusion on bidders' shareholders wealth effects cannot be based solely on a short-run event study.     

Putting the learning curve in context

In implementation of change, people learn new ways of doing things, develop new skills, and adopt new organizational routines. This paper applies learning curve theory to implementation by developing a system dynamics model that includes two extensions to classic learning curve theory. First, the model includes a required output level for the individual. Second, the model includes a budget constraint on time that forces a choice between an old and a new way to achieve the output. Doing work the new way builds experience, increasing productivity and thus favoring continued use of the new skill, but model analysis demonstrates that this reinforcing process works to favor the new skill only at relatively high levels of productivity. Otherwise, the same process is a vicious cycle, driving out the new skill. The model exhibits a mode of behavior in which learning begins and then stalls and another mode in which the new skill becomes the preferred one. The paper identifies the tipping point between these two modes and characterizes the transition problem: Learning by doing is a dynamic process, a transition from use of an old way to a new way that requires accumulating experience beyond a threshold.     

并购式内创业中的人力资源整合水平和模式研究

When firms start intrapreneurship by merger or acquisition, the level and pattern of human resource integration becomes a critical issue. However, extant literature has paid scant attentions to this issue. Drawing on the previous researches on M&A intrapreneurship, the present article collected primary data of the level and pattern of human resource integration in M&A intrapreneurship by means of in-depth interviews and used content analysis method to structurally analyze the data. The results showed that enterprises engaging in M&A intrapreneurship generally choose a high or intermediate level of HR integration. Specifically, enterprises at high level of HR integration tend to absorb employees from the acquired directly or recruit afresh employees, while enterprises at intermediate level of HR integration are inclined to adopt an agent-type of integration pattern. Translated from Zhejiang daxue xuebao(Renwen shehui kexueban) 浙江大学学报(人文社会科学版) (Journal of Zhejiang University (Humanities and Social Sciences)), 2007, 37(1): 178–189     

理工科大学毕业设计（论文）团队指导法研究与实践

通过对理工科大学生毕业设计（论文）教学工作所存在问题的分析可知，当前理工科大学生毕业设计（论文）质量提高的主要矛盾是优秀指导教师和优质教学资源的相对匮乏，而共享优质教育资源、提高理工科大学生设计（论文）质量的团队指导法是解决这一矛盾的最佳方法之一。五年的理论研究与实践应用结果表明，团队指导法是一种在理工科大学生实践教学工作中，实现优质教育资源共享的新机制和人才培养的新模式，也是教学团队建设的有效形式之一，对提高理工科大学生毕业设计（论文）整体质量发挥了积极作用，对高等教育人才培养质量和教学改革具有一定的意义。     

论中国现代经济理论研究的逻辑要求

中国现代经济理论是一门正在开拓的崭新学科,是辛亥革命以来关于经济现代化的观点、理论与学说的总和。概括并阐述其内容特征、研究特征与环境特征是该学科研究的逻辑要求,从而进一步科学说明中国现代经济理论研究的对象、任务与方法,揭示其产生与发展的基本线索,以求中国现代经济理论的学科建设与发展更具客观性与科学性。