企业环境激励模式研究

在企业管理中,为了实现企业的经营目标,如何有效地激发企业员工的积极性和创造性,已成为现代企业人力资源管理的核心.通过研究我国企业激励模式存在的主要问题,提出环境激励这个新型概念来构建环境激励模式并采用模糊综合评价法对其有效性进行评价,为能充分调动员工的积极性提供了一种思路.     

我国电站设备企业国际竞争力指标体系分析

在经济全球化环境下,市场竞争愈加激烈,如何提高企业国际竞争力成为一个亟待解决的问题。首先简要分析国内外电站设备企业的发展情况,界定了电站设备企业国际竞争力的基本内涵,分析影响我阁电站设备企业发展的主要因素,在此基础上进行评价指标体系的设计,从而为我国电站设备企业提高国际竞争力提供理论和实践的指导作用。     

人文社科领域科研项目立项评价的指标体系研究

人文社科领域科研项目的立项评价是项目选择和确定的重要依据,是项目进行的基础和前提,在项目评价过程中起关键作用.根据指标设计的基本原则构建了立项评价的指标体系,并设置了指标权重.为克服以往定性分析的不足,应用综合评分法将定性和定量相结合,描述了具体的计算过程,为科研项目的立项评价提供了一种简易可行的方法,对科研项目的实际操作具有重要的指导意义.     

基于可持续发展的企业技术创新评价指标体系研究

随着市场经济和知识经济的发展,企业的技术创新水平越来越成为企业竞争优势的来源,对企业技术创新水平进行评价就变得越来越重要,而要进行企业技术创新评价就需要合理构建企业技术创新评价指标体系.文中通过分析企业技术创新与可持续发展的关系,指出从可持续发展的角度构建技术创新评价指标体系的必要性,并进一步构建了基于可持续发展的企业技术创新评价指标体系,有利于提高企业核心竞争力.     

Effective top-k computation with term-proximity support

Modern web search engines are expected to return the top-k results efficiently. Although many dynamic index pruning strategies have been proposed for efficient top-k computation, most of them are prone to ignoring some especially important factors in ranking functions, such as term-proximity (the distance relationship between query terms in a document). In our recent work [Zhu, M., Shi, S., Li, M., & Wen, J. (2007). Effective top-k computation in retrieving structured documents with term-proximity support. In Proceedings of 16th CIKM conference (pp. 771–780)], we demonstrated that, when term-proximity is incorporated into ranking functions, most existing index structures and top-k strategies become quite inefficient. To solve this problem, we built the inverted index based on web page structure and proposed the query processing strategies accordingly. The experimental results indicate that the proposed index structures and query processing strategies significantly improve the top-k efficiency. In this paper, we study the possibility of adopting additional techniques to further improve top-k computation efficiency. We propose a Proximity-Probe Heuristic to make our top-k algorithms more efficient. We also test the efficiency of our approaches on various settings (linear or non-linear ranking functions, exact or approximate top-k processing, etc.).     

Clinicopathological spectrum of non-alcoholic fatty liver disease among patients in Kerala

Non-alcoholic fatty liver disease and its more aggressive form, non-alcoholic steatohepatitis are entities that are becoming more and more interesting to the medical community in general. A total of 93 Non-alcoholic fatty liver disease patients (64 male and 29 female) within the age range between 28 to 63 years were studied. All of them showed elevated alanine aminotransferase level (104.07 ± 56.04). Aspartate aminotransferase level (58.13 ± 31.96) was elevated more than its normal level in 82% cases and AST to ALT ratio was found 0.59 ± 0.26. Predisposing factors were diabetes mellitus (37%), obesity (13%) and hyperlipidemia (41%). In addition, 32% of the subjects were overweight.18% of the patients had elevated serum bilirubin. Our findings recommend a lower cutoff value than suggested by the World Health Organization for overweight and obesity among this racial-ethnic group.     

我国区域城市化效率的动态评价

运用DEA分析方法,分别从动态和静态两个角度考察我国各省市的城市化效率。首先利用我国各省2002~2006年间的数据,通过对Malmquist效率指数进行分析,发现我国大部分省市处于效率变动的无效状态,即城市化效率不断降低,这主要是由技术变动的无效导致的;其次,运用CCR模型,借助投影分析,通过比较实际投入值与目标投入值,发现处于DEA无效状态省市的投入要素非集约化度很高,其城市化过程仍旧主要依靠投入要素的粗放型扩张,在要素的投入方面均不具有集约效率。     

基于建立测量指标的自主技术创新构念研究

核心技术的欠缺,束缚了我国经济的进一步发展,处于转型环境下的中国企业已逐步认识到自主技术创新的重要性.在回顾技术创新和自主创新文献的基础上,从界定自主技术创新要点入手,定义了该构念.分析了企业在技术创新时,自主性主要表现为"企业依据自身资源和能力"及"企业获取技术改进和变革的成果"情况.为了建立测量指标,应用文献归纳法将"资源"、"能力"和"成果归属"指标可操作化,最终确定以19种资源、33种能力及合同中约定的技术成果归属来表述企业技术创新的自主性内涵.     

企业创新理论及其对企业创新能力评价意义的研究

自熊彼特提出"创新理论"之后,西方学者在创新理论的研究上取得了很大的进展,提出了技术创新理论、制度创新理论和管理创新理论,形成了较为完整的创新理论体系.对这些理论进行述评,并提出这些理论对建立评价企业创新能力指标体系的指导意义.     

MODIS亚像元积雪覆盖率提取方法

积雪覆盖区域,在全球能量平衡中发挥着重要作用.目前较常用的积雪覆盖率算法主要是利用雪盖率与雪盖指数(NDSI)间的关系建立统一的回归模型,但这种方法在完全雪盖区及稀疏雪盖区的反演精度较差.尝试通过分段建立模型反演雪盖率,并利用ETM+数据对模型估算结果进行验证.结果表明,分段模型可以有效提取亚像元尺度的信息,并且对NDSI高值区的雪盖率反演有一定的改善.