This paper discusses the relative efficiency analysis of the dea model with uncontrollable inputs and undesirable outputs under circumstance restriction and proposes the definitions and theorems about the relative efficiency of decision making units ( dmus ) 摘要对环境约束下包含不可控输入、非期望输出的dea综合模型的相对有效性进行研究，给出决策单元有效的定义及定理。
These two techniques , when used together , can provide subjective and objective evaluation for managerial makers . the feasibility and practicability of the framework were validated through its application in practical metrology business processes 该模型将网络分析法的思想应用到dea相对有效性评价中去，使dea评估的客观分析与anp的主观分析相结合，从而使dea方法更适合于实际。
The second part is about the legal problems of letter of indemnity . the author analyzes two types of letters of indemnity - send - out goodsletter of indemnity and pick - up goods letter of indemnity and mainly studies the legal effect of letter of indemnity 笔者认为防范保函欺诈，不应完全否定保函的法律效力，承认善意保函的相对有效性，有利于公平保护当事方的权利，有利于国际贸易和国际航运秩序。
The complementary of the capabilities and resources the capabilities rely on , as well as learning in the organization ; 2 . an appropriate organizational structure . a data envelopment analysis is introduced for a better elucidation of the complementary of the capabilities and resources in part four , also for the purpose of a quantitative analysis of the resource utilization of the potential co - opetitors 为了更好地说明企业能力及其所依赖的资源的互补，以及在此基础上的企业学习，本部分还引入了数据包络分析( dataenvelopmentanalysis ，简称dea ) ，尝试对房地产开发企业和房地产开发企业供应商(即为房地产开发提供包括建筑施工、设计、代理等各种服务的房地产上下游企业)资源整合能力的相对有效性进行定量分析。
The research establishes the regression model on the data of the investment flow , the investment stock and gdp , and finds the investment stock is sufficient and the investment efficiency is high . comparing the distribution and the efficiency of investment in all three industries , the research finds there are a little deviation between the investment structure and the demand structure , and a pressing need to adjust the industrial structure of investment . evaluating the efficiency of investment in different regions of chongqing , the research gets a result that there is a great possibility to optimize allocation of investment 对投资流量、资本存量、 gdp等时间序列数据建立模型测算、回归分析,得出重庆市资本存量较多、整体投资使用效率较高的结论;对投资在三次产业中的分布及效率进行比较研究,发现投资产业结构与资金需求结构存在偏差,投资产业结构亟待调整;评估重庆市四十个区县和三大经济区投资布局的相对有效性,结果显示只有少数区县投资相对有效,提高全市投资有效性的空间潜力巨大。
The paper evaluates and analyzes allocative efficiency of higher educational resource about thirty - one provinces in china using dea methods and models to provide scientific decisions , thus promoting mutual development between regional higher education and local economy , opitimizing resource allocation of regional higher education and advancing local innovation and economic competition 利用dea方法及模型，对我国31个省区高等教育资源配置状况进行了相对有效性评价与比较分析，以推动各地区高等教育资源优化配置，促进高等教育与区域经济的良性、互动发展，提开区域创新能力和竞争力。
The main method for comparative efficiency evaluation of the key laboratories is dea method . ca ( cluster analysis ) method is used in structural evaluation , ahp ( analytic hierarchy process ) and pca ( principal components analysis ) methods are applied to determine the index weight and to reduce the dimension of index system 文中主要应用数据包络分析( dea )方法对陕西高校省级重点实验室进行相对有效性评价，在结构性评价中用到聚类分析方法，把层次分析法、主成分分析法用于确定指标权重和指标体系降维研究。
The pratical significance of paper : linked with the gerneral urban constructing plan of wuhan , the paper talked over a model of the technological and econnmical evaluation about the track traffic construction , and have the constucted program of the pacific road ' s section in hankou as the example , introduced the research process , so that made a progress in perfecting the work 3 、归纳关键因素，量化输入、输出数据，运用运筹学方法，对备选方案进行评价。建立c ‘ r评价模型，运用dea方法评价出不同备选方案的的优劣，即方案的相对有效性，从而得出结论，并与实际采用的方案进行比较分析。
Ln the paper , we cow and analyss the ds mathemacs for which hare been used reguary in the ler ndes of induhal adjustri problem . a multidsectiv opw prowt ml is fonnulated on the base of ekisting econdrical and technlogical condions of hei ldn jiang provine . the three goais of econedc develm " social welfare and ecological eghlfor are embodied in the optw modl 运用较为前沿的数学方法对区域产业结构优化问题进行系统地定量研究，建立体现经济、社会、生态综合效益的多目标规划模型求解优化方案，并应用先进的数据包络分析( dea )方法对优化方案相对有效性进行综合评价是本文的重要特点。
