( 4 ) in the interest of identifying the efficiency characteristic of the retrofitted turbine runner , based on relative efficiency method , the paper carried out test on the efficiency of the small turbine in tai pin shao 0万千瓦是合理的。 （ 4 ）为了鉴定原型水轮机转轮改型后的效率特性，采用相对效率法对太平哨的小机进行了效率试验。
In the forth chapter , we discuss the effect of outsourcing and foreign - direct - investment ( fdi ) from the north on the rate of technical change and wage gap between skilled and unskilled workers in the south and the north 发展中国家的相对工资取决于技术变化速度、相对效率的变化、劳动力供给和技能分布。大量低技能工人产生了向下的工资压力。而高技能工人则进入到技能密集型行业。
All these estimates are feasible unbiased estimates . we use the quotient of the determinant of the variance - covariance matrix of the feasible unbiased estimates , that is , a kind of relative efficency to compare these esti - mates . the results have instructive significance for practice 我们应用这些估计的协方差阵的行列式之商，即一种相对效率比较了这些估计的优劣，所得结果对实际应用具有一定指导意义。
This paper has evaluated and sorted the comparative efficiency of the 31 listing companies agriculture by dea model which has only output index , and found that the comparative efficiency of the 31 listing companies agriculture is influenced by 2 factors ; the efficiency of agricultural company , and the rate of average index , which show the whole index and some critical indexes which influence the company performance 运用仅有产出的dea模型对我国31家农业上市公司的相对效率进行了评价和排序,通过数据分析发现农业上市公司的相对效率受两方面因素的影响:反映总体指标表现情况的达到平均指标率和影响公司业绩的关键指标。
First , the categories of information demand by top manager are presented by analyzing the factors of influencing information demands and the characteristic of making decision . second , after analyzing the characteristics of information as product and service , it gives a model of accessing information quality on the basis of different understand to quality from administrative staff of information and general manager . the indexes system of quality and the way to use the model are also presented at last , under the precondition of considering the limited resources , the dea is used to optimize many information cost budgets 本文首先对高层管理者信息需求从影响因素、决策特点、信息需求内容等三个方面进行理论分析，然后在分析信息的产品特性和服务特性的基础上，从信息管理人员和一般管理人员对信息质量的不同认识出发，构建一个信息质量评价模型，给出信息质量评价指标体系和信息质量的评价方法，最后以信息质量评价为基础，利用数据包络分析方法，对考虑资源约束下的信息成本预算方案进行评价，得出信息成本预算方案的相对效率评价值，从而实现信息成本预算方案的优化。
We make the following assumption for when 2 is positive definite matrix , different estimators about matrix of regression coefficients and inefficiency of least squares estimate have been discussed in many documents . considered 2 is nonnegative definite matrix , this thesis derives best linear unbiased estimate of parameter matrix b and estimable parameter function kbl under the meaning of matrix nonnegative definite and the property of maximum probability of blue is investigated . next , we discuss some necessary and sufficient conditions of the equality of the lse and blue , then we derive the estimation of the deviation bet - ween the least squares and the best linear unbias estimators of the mean matrix , meanwhile a relative efficiency of lse ofb is proposed and its bound is given 当0时，众多文献讨论了回归系数阵的各种估计及lse的有效性，本文考虑了当0的情形，给出了回归系数阵b及其可估参数函数kbl的在矩阵非负定意义下的最优估计( blue ) ，研究了它的一个最大概率性质，并且讨论了最小二乘估计成为最佳线性无偏估计的充分必要条件，在此基础上给出了均值矩阵的最小二乘估计与blue的偏差估计，定义了lse相对于blue的一个相对效率，并给出了它的界。
The changing competition environment urges native life insurers and academia to pay more attention to life insurance industry ’ s efficiency problems . in fact , perhaps because of different development degree of money market , researches on commercial banks ’ efficiency problems have been valued since many years ago but discussions related life industry ’ s efficiency didn ’ t become outstanding in our country . so this paper is trying to seize the information of the native life insurers ’ efficiency and the information may give the insurers some help 鉴于人寿保险行业对我国经济及社会建设的重要性,以及处于发展初级阶段的中国各大人寿保险公司即将在变动的经营环境下,面对外资保险公司的激烈竞争,本文基于公布的2004年数据,应用数据包络分析法测算中国人寿保险市场上当时最大的13家人寿保险公司的相对效率,并根据测算结果以探讨整个行业的效率状况。
For this purpose , this article is titled as an economic analysis of law on the corporate behavior and interest of shareholders under the dualistic ownership structure , using the economic analysis of law method ( with posner as the representative economist ) as the basic analytic and argumentation method , with the actually existent dualistic ownership structure on china ’ s securities markets as the precondition for this research , with the target of legal regulation - shareholder interests and corporate behavior as the focus of this research , hereafter comes the structure of this paper as following : by using the perspective , theorems and tools of economic analysis of law to analyze the lexononic quality of the dualistic ownership structure which is unique in china and the reasons for the setup of this special kind of ownership structure , disclose the disequilibrium of shareholder interests in the listed companies and the dissimilation characteristics of the behavior of the listed companies under the dualistic ownership structure . then this paper conducts research on the actual regulation efficiency of the company law , the securities law and other relevant laws and 据此,本文以“二元股权结构下公司行为与股东利益的法律经济分析”为题,即以波斯纳为代表的“法律经济分析”作为本文分析、论证的基本方法,以中国证券市场现实存在的“二元股权结构”作为本文研究的前提条件,以上市公司相关法律调整的对象? ? “公司行为”及“股东利益”作为本文研究的标的,由此形成本文论述的主要思路:通过和利用法律经济学的视角、原理和工具,分析中国特有的二元股权结构的法律经济属性,以及该特殊股权设置规则形成的原因,揭示二元股权结构下上市公司股东利益的失衡现象及上市公司行为的异化特征,并在此基础上研究二元股权结构下公司法、证券法及其他相关法律法规调整的现实效率,以及实现我国上市公司公司行为及股东利益的法律调整体系的相对效率乃至理想的绝对效率的改革途径。
By posing the difference on mathematical models between blind detection and non - blind detection , we devise the sign correlation detector ( scd ) and the normalized liner correlation detector ( nlcd ) based on the laplacian distribution model and the local gaussian distribution model of the host signal respectively . a series of experiments in dct domain and dwt domain show that these two detectors are more robust than linear correlation detector ( lcd ) 基于局部最优检测理论得到了广义高斯分布模型下盲检测器的一般形式?幅度一符号相关检测器，通过计算幅度一符号相关检测器相对于线性相关检测器的渐进相对效率，建立了渐进相对效率与宿主信号形状参数之间的关系，从理论上证实了幅度一符号相关检测器的高效性。
Consequently , decision is including finding problem , setting goal and constructing alternatives . the whole process is divided into four stages , and they orderly are selecting information , constructing alternatives , evaluating and selecting the optimization , and practicing it . this paper is just about the research in one of the important stages - - constructing prepared alternative gather 在此基础上,论文利用dea模型对备选方案集合中的各个方案进行了相对效率评价,并基于爬山原理及循序渐进原则利用模拟退火方法对相对效率较差的方案进行了改进,之后将改进后的方案与原来的有效方案一起再次进行相对效率评价,并将该次评价得出的相对有效方案定义为ahp决策方案集合的优选子集。
