Study on feasibility of variable returns-to-scale based super-efficiency data envelopment analysis model;

This paper introduces the SE-DEA model,compares the SE-DEA model and the DEA model,and discusses how to use the SE-DEA model to evaluate the relative efficiency of resource development enterprise.

Analysis of selenium contents in 32 kinds of aquatic production in Guangzhou;

Determination of selenium in seawater using ion selective electrode;

Effects of selenium on reproductive performances and immune functions in dairy cows;

Based on the analysis of different methods for appraising the port resource economic effect,the data envelopment analysis(DEA) and modified data envelopment analysis(MDEA) models are introduced to make a comprehensive appraisal of economic effects of 12 Chinese container terminal companies,and the comparative analysis of the relative effective values obtained by DEA and MDEA models is made.

Using grassland area,stock number,and productive expenditure as inputs and per capital annual net income,life expenditure,and grassland quality as outputs,we analyze 30 household pastures in Baiyinxile of Inner Mongolia by means of CCR,a model of data envelopment analysis(DEA),and get the improved values of indicators.

This paper uses a comparatively useful evaluation method——Data Envelopment Analysis(DEA) model to evaluate the management performance of the reverse logistics by local government.

In this paper a model based on Data Envelopment Analysis is used to evaluate the relative efficiency and scale efficiency of coal mine companies in China's stock market.

This paper proposes the application of the theory of data envelopment analysis in the evaluation of harmonious development between railway transportation and economic growth.

This article uses the method of Data Envelopment Analysis to calculate the technical efficiency and scale efficiency of nine major corn producing areas in Xinjiang in 2006,and classify the nine areas based on relative productive efficiency.