共查询到20条相似文献,搜索用时 93 毫秒
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“DD”电阻应变片的工作原理及其应用钟志俊博士(英国爱丁堡大学土木工程系)“DD”电阻应变片,或称双层电阻应变片是DoubleDeckElectricalResistanceStrainGauge的简称。它是由F.Zondman博士于七十年代的美国发... 相似文献
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三亚大桥荷载试验方案设计 总被引:2,自引:0,他引:2
详细介绍了三亚大桥静载试验方案的具体设计,试验内容包括试验加载车辆确定、试验孔跨及控制断面、应变片布设、测试内容及保障措施等。在具体的项目测试过程中完全按照既定的试验方案进行,效果良好。 相似文献
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应力应变电测技术中影响测量误差的主要因素分析 总被引:1,自引:0,他引:1
分析了电测试验中电阻应变片及导线长度、温度的不同,对测试结果所产生的影响,并通过理论分析,计算及实际结构的测试,得出了应变电测试验中减小误差的方法。 相似文献
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桥梁静载试验是分析和检测桥梁静力特性的重要手段,以工程实际桥梁检测为背景,对实验梁分别在两个工况下进行加载,并且应用精密水准仪器测量桥梁挠度变化,和粘帖应变片测量应力变化,最后与有限元模型计算得到的挠度和应力值对比,表明在两辆装载30吨加载车的作用下,桥梁的最大挠度值的4.6mm,同时应变最大值为109με,都满足《大跨径混凝土桥梁的试验方法》对桥梁检测的规定,该桥上部结构承载能力满足公路—II级、人群荷载3.5k N/m2的设计荷载等级要求。 相似文献
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本文对煤矿的水文地质进行了介绍,并且对煤矿的水文地质所存在的问题进行了分析。同时,针对煤矿的水文地质的勘探,进行了研究,对特殊的煤矿类型的勘探方法,进行了勘探技术和勘探手段的讨论。 相似文献
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论政府绩效审计的应用模式 总被引:3,自引:0,他引:3
政府绩效审计应用模式可以按照绩效评价的层次确定,不同层次的绩效评价即审计评价的对象不同决定着审计的内容、方法、程序等一系列要素的组合不同,从而形成不同的绩效审计模式。政府绩效审计应用模式可以分为公共部门绩效审计、公共项目绩效审计、公共资源绩效审计模式。三种审计模式有共同特征但也存在差异。 相似文献
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文章认为公共服务绩效管理不是一个单一的行为过程,而是由许多环节和步骤组成的循环系统流程。公共服务绩效管理是基于公共服务绩效的价值、指标、信息、方法等系统,由制定绩效计划、实施绩效计划、进行绩效评估、开展绩效诊断与反馈、应用绩效评估结果5个基本环节组成。 相似文献
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合同管理是项目管理的核心工作。合同管理绩效反映了项目管理的总体效果。分析了合同管理绩效的特点,阐述了评价合同管理绩效应从结果绩效与行为绩效两个方面着手的原因,提出了结果绩效与行为绩效评价的主要绩效目标。 相似文献
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It is widely recognized that new product development (NPD) is a highly interdependent process, yet efforts to empirically model the interdependence and examine its effect on firm performance are scarce. Our study addresses this research gap. We model firms’ abilities to collectively collaborate with suppliers, customers, and internal employee teams in NPD as collaborative competence and examine its impact on project and market performance. Using responses collected from 189 NPD managers, we find empirical evidence for collaborative competence and its differential impact on project and market performance. Specifically, we find that collaborative competence has a direct impact on project performance, but its impact on market performance is indirect, mediated through project performance. The results have significant managerial implications; achieving superior market performance from inter- and intra-organizational involvement is contingent on achieving superior project performance, and companies that fail to achieve desired project performance outcomes will also fail in achieving market performance goals. 相似文献
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绩效审计制度体系包括绩效审计准则、操作指南和评价指标体系等.我国对审计标准和指南的探索虽然已经取得一定的成效,但还是远远不够的.在<审计法>等法律法规的基础上,通过对绩效审计基本准则、绩效审计报告准则、绩效审计指南以及绩效审计评价指标体系进行探索,拟构建中国特色的绩效审计制度体系,为绩效审计实务提供依据. 相似文献
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绩效预算模式下公共项目绩效审计研究 总被引:3,自引:0,他引:3
从公共项目绩效预算模式及其运作机制入手,探讨绩效预算模式下公共项目绩效审计的属性和内容,研究认为,绩效审计作为绩效预算的外部约束而存在,既是必要的,也是可行的.绩效审计和绩效管理有着不同的功能和属性.绩效预算模式下公共项目绩效审计的主要内容包括绩效预算评价体系审计、绩效目标要素审计、项目决策机制审计、项目目标实现程度审计.绩效审计应重点关注预算金额与绩效目标、绩效评价之间的匹配性. 相似文献
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新疆上市公司治理结构与绩效的相关性研究 总被引:1,自引:0,他引:1
以2001~2005年新疆上市公司为样本,综合考察了股权结构、董事会特征与高管激励对公司绩效的影响,发现股权集中度与公司绩效正相关,董事长与总经理两职合一与公司绩效正相关,董事会规模与绩效成倒U型关系,独立董事比例与绩效成负向关系;高管激励不论是采用年薪的方式还是采用股权激励都未通过显著性检验。考虑到公司内部治理结构与绩效的互动关系,还检验了治理结构的内生性问题,Granger因果关系检验发现公司治理结构对绩效有促进作用,但未发现绩效对治理机制的反馈作用。 相似文献
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Sander de LeeuwAuthor Vitae Jeroen P. van den BergAuthor Vitae 《Journal of Operations Management》2011,29(3):224-235
It is generally believed that companies applying performance management practices outperform those that do not measure and manage their performance. Studies examining the link between performance management and performance improvement implicitly assume that performance management affects behavior of individuals in an organization, which then facilitates the achievement of organizational goals. This study takes a step towards understanding this implicit assumption. We investigate how performance management practices relate to improvement in performance by influencing behavior of individuals. We focus on operational performance management, i.e. the definition and use of performance measures on the shopfloor in production and distribution. We use a survey among 102 companies to identify the relations between performance management practices, shopfloor behavior and improvement in performance. We identified three independent clusters of operator behavior that positively correlate with performance improvement: “Understanding”, “Motivation” and “Focus on Improvement”. We show that 17 out of the 20 performance management practices found in literature have a significant and positive relation with one or more clusters of operator behavior. We furthermore found that there is a positive correlation between the number of performance management practices applied and performance improvement, suggesting that it is not only which practices are applied but also how many. Recommendations emerging from this study enable managers to identify which behavioral changes are desired to improve performance and to select those performance management practices that positively influence the desired behavior. 相似文献