源代码在线评估系统的设计与实现

源代码在线评估系统被广泛用作程序设计类的辅助教学系统。相对于通过运行代码来实现代码评估的传统方式,源代码评估系统通过静态分析法来避免传统方式中出现的各种弊端,实现对源代码的评估。     

中外搜索引擎性能评测分析

从定量与定性2个方面,对当前4个著名的中英文搜索引擎工具(百度、搜狐、AltaVista、Groogle)的检索性能进行测评,为网络搜索引擎检索技术的优化改进提供理论和事实根据.     

程序设计语言在线测评系统设计与开发

针对于计算机语言教师阅读与调试程序工作量大的问题,借助于计算机工具,设计并实现一套程序设计语言在线评测系统,以减少教师对程序评测的工作量并提高学生的学习效率.     

网上评测系统的研究与应用

论述了课程网络教学系统中“网上评测系统”的整个制作过程,介绍了包括JavaScript评测代码的编写、题目图片的绘制及处理、所用软件和相关技术。     

教学质量评测系统的设计与实现

随着网络技术不断发展，开发基于Web的教学质量评测系统、最大限度利用高校现有资源、提高管理效率是高等院校研究的重点之一。本文介绍了基于ASP技术的网上教学质量评测系统的设计及实现。     

避雷器在线监测系统研究

随着是电力自动化水平的不断提高.电力系统检查和维护设备方法也不断改进,状态的检修是电力系统检查和维护设备技术发展的必然趋势,检修依据的是在线监测系统对设备的实时监控所测得的数据,完成时设备准确检修.根据现场的需要对氧化锌避雷器实行在线系统监测,分析了避雷器的工作原理、特点、特性和存在的问题以及实施在线监测的各种方法.     

电力设备在线监测自动化系统的研究

随着Internet/Intranet技术的普及，电力系统各种电力设备的在线监测信息系统，采用．簟传统三层B，S在线监测信息系统在安全性上存在不足，提出了一种四层安全体系结构，并对此进行了定义并介绍了四层通用安全信息系统的工作流程。     

Web服务可用性评测方法研究

为了对web服务可用性进行评测,从用户角度提出了Web服务可用性的相关指标。通过建立web服务可用性评价模型,给出了一种针对Web服务可用性的评价方法,为用户对服务的量化及选择提供了客观依据。     

政府网站评测方法研究

本文从我国政府网站的实际特点和现状出发，提出一套实用可行的评测方法与指标，对我国目前的一些主要政府部门的网站的容量、更新速度、稳定性等情况进行了评测，并与国外的一些政府网站进行了比较，最后提出了加强政府网站建设的若干建议。     

大学英语多媒体教学评测方法及实践研究

本文在分析大学英语多媒体教学模式基础上,深入研究大学英语多媒体教学的评测方法,并从教育测量与评价的角度评测在大学英语教学中采用多媒体教学模式的效果,并对其进行了实证研究。     

提升新能源企业环境研发补贴绩效的内外规制研究

本文选取2011-2015年我国新能源上市公司为研究对象,采用多元回归分析方法,分别研究不同规制约束下,政府环境研发补贴对环境研发投入和环境绩效的影响。实证研究结果显示：政府环境研发补贴对企业环境绩效具有积极的促进效应,企业环境研发投入在政府环境研发补贴与企业环境绩效之间具有中介作用。具体而言,政府环境研发补贴在较高的内部规制下能够显著促进企业环境研发投入与企业环境绩效,企业环境研发投入在较高的外部规制下能够显著促进企业环境绩效;当企业面临高外部规制和高内部规制时,政府环境研发补贴对企业环境绩效的促进作用最强;当企业面临内外部规制一强一弱的制约时,相比于低外部规制和高内部规制,政府环境研发补贴在高外部规制和低内部规制下更能促进企业环境绩效的提升。本文研究结论对提升政府环境研发补贴绩效和新能源企业环境研发效率具有重要的现实意义。     

经营者绩效评估体系研究

经济的发展、竞争的加剧，对企业的人力资源管理提出了越来越高的要求，如何对企业经营者进行绩效评估成为急待解决同时又具有重大现实意义的难题。通过对经营者、绩效与绩效评估含义的理解与传统经营者绩效评估体系的历史、方法及特点的考察，提出了变革传统经营者绩效评估体系的若干方法。     

Managing supply chain knowledge-based linkages for improving operational performance

Purpose – This paper aims to explore the role of internal and external knowledge-based linkages across the supply chain in achieving better operational performance. It investigates how knowledge is accumulated, shared, and applied to create organization-specific knowledge resources that increase and sustain the organization’s competitive advantage. Design/methodology/approach – This paper uses a single case study with multiple, embedded units of analysis, and the social network analysis (SNA) to demonstrate the impact of internal and external knowledge-based linkages across multiple tiers in the supply chain on the organizational operational performance. The focal company of the case study is an Italian manufacturer supplying rubber components to European automotive enterprises. Findings – With the aid of the SNA, the internal knowledge-based linkages can be mapped and visualized. We found that the most central nodes having the most connections with other nodes in the linkages are the most crucial members in terms of knowledge exploration and exploitation within the organization. We also revealed that the effective management of external knowledge-based linkages, such as buyer company, competitors, university, suppliers, and subcontractors, can help improve the operational performance. Research limitations/implications – First, our hypothesis was tested on a single case. The analysis of multiple case studies using SNA would provide a deeper understanding of the relationship between the knowledge-based linkages at all levels of the supply chain and the integration of knowledge. Second, the static nature of knowledge flows was studied in this research. Future research could also consider ongoing monitoring of dynamic linkages and the dynamic characteristic of knowledge flows. Originality/value – To the best of our knowledge, the phrase ‘knowledge-based linkages’ has not been used in the literature and there is lack of investigation on the relationship between the management of internal and external knowledge-based linkages and the operational performance. To bridge the knowledge gap, this paper will show the importance of understanding the composition and characteristics of knowledge-based linkages and their knowledge nodes. In addition, this paper will show that effective management of knowledge-based linkages leads to the creation of new knowledge and improves organizations’ operational performance.     

跨区域协同创新系统绩效测度与优化研究

现有研究较少从跨区域维度考察协同创新,且在进行协同创新绩效测度的过程中往往忽视了参与各方的协同联系。本研究在明晰跨区域协同创新绩效内涵的基础上,构建跨区域协同创新复合系统,测算区域间协同投入和协同产出,进而采用DEA-Tobit两阶段模型对2013年-2016年间长三角地区和京津冀地区的跨区域协同创新绩效及其关键影响因素进行了实证研究,结果发现：（1）长三角内部各区域间协同创新绩效水平呈阶梯状多元化分布,其中江浙沪各自与皖的协同创新绩效水平高于江浙沪彼此间的协同创新绩效水平,并因地理邻近性表现出一定的差异;（2）京津冀内部各区域间协同创新绩效水平呈极端化分布,京津和京冀协同创新绩效达到很高的水平,而津冀协同创新绩效水平则较低;（3）长三角地区整体协同创新绩效水平高于京津冀地区,无论是技术效率还是和规模效率,京津冀地区相比长三角地区均有较大差距;（4）区域间协同度对于跨区域协同创新绩效具有显著正向影响,地理邻近性也能在一定程度上对跨区域协同创新绩效具有促进作用,而区域间经济发展差距则对跨区域协同创新绩效影响较小。最后提出了提升绩效的优化建议。     

区域R&D投入绩效评价测度体系研究

文章通过对构建我国区域R&D投入绩效测度体系的研究,指出目前在许多测度指标体系的建立过程中,采用计算简单相关系数的方法来进行指标筛选存在误区,进而通过理论概念和实证结果阐述了采用偏相关系数来进行测度指标筛选的正确性。     

Nonlinear and adaptive control of NO/NO2 ratio for improving selective catalytic reduction system performance

Reducing the NO_x emissions from Diesel engines remains as a challenging issue as the emission standards for Diesel engine powered vehicles have become more stringent than ever before. Urea-based selective catalytic reduction (SCR) systems have emerged as a promising technique in addressing this issue. However, the SCR performance in terms of NO_x reduction and ammonia slip continues as an ongoing challenge due to the engine exhaust gas temperature variations, Diesel emission characteristics (especially high NO/NO₂ ratio), and immature SCR controls. The purpose of this study is to improve the SCR performance by feeding the SCR system with exhaust gas having the desired NO/NO₂ ratio. The proposed complete active NO/NO₂ ratio control consists of a low-level adaptive NO/NO₂ ratio controller and a high-level nonlinear soot mass controller. The low-level controller utilizes the pre-SCR catalysts such as Diesel oxidation catalyst (DOC) to convert part of NO into NO₂, while the high-level controller was designed and coordinated with the low-level controller to avoid NO₂ reduction through the Diesel particulate filter (DPF). Simulation and experimental results show that the proposed active NO/NO₂ ratio control has the potentials of regulating the NO/NO₂ ratio to the desired value and thus considerably improving the SCR performance. Simulation results also illustrate that the active NO/NO₂ ratio control can enable the SCR system size reduction by a half without a significant sacrifice on the overall tailpipe emission control performance. Such an integrated aftertreatment system control can be instrumental in reducing the cost and improving the performance of SCR systems, especially in low-temperature operations.     

运用元极功法开发学生智力的实验研究

通过对小学高年级学生学炼元极功法前后智力水平的测试,证明元极功法对开发少年儿童智力有显著促进作用。     

基于协调的供应链绩效评价指标体系研究

供应链管理的主要内容是供应链范围内的部门之间和节点企业之间的相互合作与协调,协调管理是供应链管理的核心内容。通过对供应链协调的内涵进行分析,从供应链协调绩效评价的原则出发,提出了基于物流、资金流、信息流和柔性4个方面的供应链协调绩效评价指标体系,并对各指标建立了相应的量化计算方法。     

Prospects for improving research communication and the incentive system in science

Much concern has been expressed in recent years about the processes associated with publishing research in high-profile journals,particularly within the life sciences and biomedicine[1-4].Researchers are frequently subjected to substantial delays in communicating their work,overzealous reviewers make demands for extensive revision,and essential information and data are often relegated to supplementary files with little functionality.More broadly,much of this work is not published open access,and the quality and reliability of the science that is being reported in top-ranking journals has been called into question[5,6].