对提高我国企业技术创新能力的思考     

孙晓宁  李军训  田伟 《技术与创新管理》2007,28(3):110-111

从产品、资金、R＆D投入的角度阐述了我国企业技术创新能力低下的主要原因，对影响我国企业技术创新能力提高的4个主要因素：科技与经济存在“两张皮”、缺乏技术创新的动力、技术引进与消化、人员素质进行了重点分析，结合国际大型企业经验，提出了提高我国企业技术创新能力的相应对策。  相似文献   

联机分析挖掘(OLAM)方法在银行信用风险评估中的应用     

方洪全  曾勇 《中国软科学》2004,(10):126-130,139

现有文献多从某一具体方法讨论信用风险评估模型，受样本数量的约束，所建模型并不足以反映金融机构所处的信用风险水平。本文以1333笔实际贷款记录建立数据方，运用数据挖掘方法揭示了信用风险基本特征，建立起两阶段的信用风险评估体系，实证结果表明本模型是有效的，为金融机构建立风险评价体系提供有力的支持。  相似文献   

Comparative account of serum lipids,lipoproteins and apolipoprotein-B in patients of coronary artery disease     

Ritu Sharma  Mridula Mahajan  Ravi Kant 《Indian journal of clinical biochemistry : IJCB》2004,19(1):10-13

Serum total lipids (cholesterol and triglyceride), lipoproteins (VLDL, LDL and HDL) and Apolipoprotein-B levels of normal healthy individuals (n=25) and coronary artery disease patients (n=25) were estimated. The objective of the present study was to ascertain the role of apo-B in causation and inheritance of coronary artery disease. It was observed that on an average serum total cholesterol and triglyceride more than 200 mg/dl bring the individuals to a risk of coronary artery disease (CAD) irrespective of the age. CAD patients achieved this value at an early age (35–45 years). Similarly VLDL and LDL levels were found to be significantly raised in CAD patients when compared to that of age matched normal individuals, with patients achieving risk values at an early age. HDL levels were found to be significantly lower in CAD patients as compared to normal individuals. Serum apo-B levels were significantly raised in CAD patients as compared to age matched normal individuals. Patients with positive family history of CAD had raised serum apo-B levels than those having negative family history. A positive coefficient of correlation was observed between serum apo-B and LDL levels suggesting that more the number of Apo-B particles, more will be the synthesis of atherogenic particle (LDL). Patients with negative family history had serum apo-B levels closer to those of normal individuals and in these individuals HDL levels were found to be significantly lowered, suggesting that loss of scavenger role of HDL could be the risk factor responsible for the causation of CAD in these patients, with negative family history of coronary artery disease.  相似文献   

高科技风险投资项目风险评价体系   总被引：8，自引：0，他引：8  

孙秋鹏  于超银 《软科学》2001,15(1):18-22

高科技风险投资项目具有高风险、高收益、高增长潜力的特点。如何较好评价风险从而较好地防范、控制和规避风险，减少投资过程中的不确定性是高科技风险投资成败的关键。基于这一点，本文从风险投资的特点入手，通过对高科技风险投资项目的分析，建立起一套风险评价体系，希望能够对我国风险投资业的发展有所帮助。  相似文献   

基于合作网络中心性指标的科研团队学术带头人识别研究     

李纲  刘先红 《科技管理研究》2016,(8):127-132

合作网络中心性指标越来越多地被应用于科研团队学术带头人的识别,但识别的合理性与有效性有待论证。基于此,归纳科研团队学术带头人的胜任特征,并分析合作网络中心性指标测度这些胜任特征的合理性。以14个受资助的国家自然科学基金创新研究群体为对象,从识准率和识全率两个方面对网络中心性指标识别科研团队学术带头人的有效性进行实证分析。  相似文献   

基于全寿命周期的软件项目投标风险规避研究          下载免费PDF全文

谢刚  张金隆 《科研管理》2006,27(3):97-102,89

文章研究了将项目管理风险集成到投标风险,运用全寿命周期理论实施软件项目投标风险规避的问题。首先,介绍了软件项目全寿命周期流程和寿命周期各阶段的主要风险要素;其次,分析了软件项目投标风险对应的风险规避措施;最后,提出了软件项目投标风险规避的基本决策过程,并举例。  相似文献   

基于有向图分析的集群识别方法研究     

骆静 《科学学与科学技术管理》2007,28(4):75-79

对基于有向图分析的集群识别方法进行了全面分析,系统地阐述了该方法的核心工具——有向图表以及创新交互矩阵,并重点对9种集群有向图进行了深入的研究分析,提出并详细剖析了基于有向图分析的集群识别方法在应用过程中存在的优点和缺陷。  相似文献   

浅谈绿色工位管理     

田光大  郑立新等 《科技与管理》2000,(2):40-42

针对企业中制造系统管理存在的问题,把全面质量管理与实际生产相结合,提出了绿色工位管理方式,并介绍了绿色工位管理的基本原理及具体实施方式,这种管理方法是达到精益生产的有效途径。  相似文献   

Subspace design of low-rank estimators for higher-order statistics     

Ivan Bradaric  Athina P. Petropulu  Konstantinos I. Diamantaras 《Journal of The Franklin Institute》2002,339(2):161-187

Higher-order statistics (HOS) are well known for their robustness to additive Gaussian noise and ability to preserve phase. HOS estimates, on the other hand, have been criticized for high complexity and the need for long data in order to maintain small variance. Since rank reduction offers a general principle for reduction of estimator variance and complexity, we consider the problem of designing low-rank estimators for HOS. We propose three methods for choosing the transformation matrix that reduces the mean-square error (MSE) associated with the low-rank HOS estimates. We also demonstrate the advantages of using low-rank third-order moment estimates for blind system estimation. Results indicate that the full rank MSE corresponding to some data length N can be attained by a low-rank estimator corresponding to a length significantly smaller than N.  相似文献   

在供应链管理环境下"走出去"企业的汇率风险决策分析   总被引：3，自引：0，他引：3  

马林  钟昌标 《中国软科学》2004,(7):93-96

"走出去"企业的经营面临越来越多的风险,汇率风险就是其中之一。在"走出去"企业的供应链管理中,实施怎样的供应链风险管理策略以降低供应链风险对企业整个供应链的影响,是我国众多"走出去"的企业亟待解决的一个重要问题。将汇率风险纳入企业供应链的决策模型中加以考虑,提高企业供应链的稳定性和运作效率是"走出去"企业供应链管理的关键。本文建立了基于汇率风险的企业供应链决策模型,并进行实证,为"走出去"企业的供应链管理决策提供参考。  相似文献