射水造墙在堤防加固防渗工程中的应用

文章结合江西省廖坊库区八堡堤射水造墙法地下连续墙的施工经验,介绍射水造墙法在圩堤防渗工程中的成墙原理、施工方法及施工中应注意的问题。     

越南昆江2水电站埋藏式压力钢管设计

越南昆江2水电站二级电站为典型的高水头水电站,其埋藏式压力钢管段是该电站设计施工重点部位.文章就管径管材选用、高压管道钢衬起点位置、抗内外压力稳定以及灌浆排水等方面进行了计算分析。     

城市化与水资源相互关系研究述评

从城市化发展对水资源环境的影响,水资源对城市化发展的制约以及二者之间的量化关系等方面对二者之间关系的研究进展进行了总结和评述;并基于生态学理论,将城市化进程中城镇用水分为直接用水、间接用水和诱发用水三个方面,进行了简单阐述。     

波士顿产业转型研究

对波士顿高技术产业发展历程进行了全景式描述,并对其转型原因进行了分析,为老工业城市如何发展高技术产业这一重大课题的研究提供参考。     

城镇水价收费制度研究

基于调研数据,对影响城镇水价收费制度改革的诸多因素进行了order probit模型的计量分析。研究发现,居民水费支出、收入水平和住房面积等因素,对收费制度改革具有显著的影响关系,而环保宣传、地区因素和居民个体特征因素的影响关系不显著。在此基础上,提出了城镇水价收费制度改革的对策建议。     

水污染与城市供水安全

城市供水安全已成为社会关注的焦点,在分析影响城市供水安全因素的基础上,提出了解决城市供水安全问题的对策.     

基于成本补偿的水权定价模型研究

为缓解水资源短缺危机,我国开始尝试水权交易,但在交易中存在价格扭曲的现象,挫伤农民节水积极性。因此,解决水权交易中的价格问题意义重大。结合我国水权和水权交易性质,提出水权定价的原则,分析水权交易涉及的各种成本,主要包括工程成本、风险补偿成本、生态补偿成本和经济补偿成本。在此基础上,采用完全成本法进行水权定价,并且区分水权交易期限不大于节(输)水工程的使用寿命与交易期限大于节(输)水工程的使用寿命两种情况讨论,给出水权定价模型。为水权交易中的价格制定提供理论基础和方法,有利于水权市场的完善和水资源的高效利用。     

发动机汽缸压力测试方法探析

发动机的汽缸压力是评价发动机动力性能的一项重要指标,在对发动机进行检查、评价和维修时需要经常测试。文章从汽车实践技术的角度阐述了发动机汽缸压力的测试仪器、测试方法与技巧,并在理论上对测试的数据和测试误差加以科学系统地分析,提出解决办法,为汽车发动机的技术维修提供科学合理的依据。     

High‐Performance Work Systems in Professional Service Firms: Examining the Practices‐Resources‐Uses‐Performance Linkage

Professional service firms (PSFs) play an important role in the knowledge‐based economy. Their success is highly dependent on their people, the knowledge resources they possess, and how they use these resources. However, how to systematically manage human resources to attain high performance is not fully understood. This study addresses this issue by investigating the linkage mechanisms through which high‐performance work systems (HPWS) influence the performance of PSFs. We integrate resource‐based and dynamic capability theories in order to identify and investigate two intervening mechanisms that link HR practices to firm performance. The first mechanism is the intellectual capital resources comprising the human, social, and organizational capital that HPWS create. The second mechanism is the uses to which both HPWS and resources can be applied, operationalized as organizational ambidexterity, the simultaneous exploitation of existing knowledge and exploration of new knowledge. These mechanisms are hypothesized to link HPWS to firm performance in the form of a practices‐resources‐uses‐performance linkage model. Results from a longitudinal study of 93 accounting firms support this linkage model. © 2015 Wiley Periodicals, Inc.     

Career Management in High‐Performing Organizations: A Set‐Theoretic Approach

The aim of this study is to investigate the elements of organizational career management (OCM) that can lead to strong organizational performance. The growing unpredictability of careers requires a different organizational approach of careers. Yet, new career models all focus on the individual as the central actor, leaving the role of the organization rather underdeveloped. Based on a combined perspective integrating insights from the literature on careers, high performance work systems, and idiosyncratic deals (I‐deals), we address four dimensions of OCM: supportive and developmental practices, development I‐deals, individual responsibility, and consensus. We study their relationships with company performance, thereby including the firm's human capital composition. Surveys were administered to the HR directors of 293 organizations. We apply a relatively new method, fsQCA (fuzzy‐set qualitative comparative analysis), and complement this with more conventional structural equation modeling (SEM). The SEM analyses suggest that only supportive and developmental practices are positively associated with high performance. However, based on the fsQCA, three configurations are identified in which OCM is associated with high performance. The most prevalent configuration combined supportive and developmental practices with I‐deals and individual responsibility for career management. We conclude with a discussion of the implications of our findings, and address the utility of adopting a configurational approach in career research. © 2016 Wiley Periodicals, Inc.