envelopment 中文意思是什麼

The thesis is based on income question, forest coverage rate and grop production. to beging with, date envelopment analysis is proved that it can be applicated into grain for green in shan - bei district, and then in view of the fact, seven esential factors which have influence on the project are found out : expense of dam, expense of crop, expense of cash tree, expense of defense tree, other economic crop, expense of grass and graziery ; and the output factors include : income of gdp, pure income per captia, the area of decreasing land loss, graziery income, crop production, income of tree, the totle income of economic crop. after the date of each facts are puted into dea model, unefficiencial decision making units ( dmu ) found. the data that are got through adjusting unefficiencial dmus dy dea can offer guide in shanbei district upgrading of an industrial structure. at the same time, taking into account some possible problems in or after grain for green in shan - bei district, the thesis bring out some propesal to improve the circ umstance, enhance the life level and put the relation of population, resource and circumstance into a healthy orbit

因此，加快退耕還林還草，調整土地利用結構和產業結構，已成為實現山川秀美工程和可持續發展戰略的必經之路。論文以解決陜北地區的收入問題，植被問題以及糧食產量問題為出發點，首先從理論上分析了包絡分析方法在陜北地區退耕還林（草）中運用的可行性，然後結合陜北地區目前的實際情況，綜合分析出影響陜北地區退耕還林（草）的關鍵的七個因素作為輸入指標：水利水保設施投入，農作物投入，經濟林種支出，防護林支出，其它經濟作物，草類支出，畜牧業投入；以退耕還林所要解決的最終問題作為輸出指標： gdp收入、農民人均純收入、水土流失減少量、牧業總產值、糧食產量、林業總產值、其他經濟作物總產值。將各指標所對應的數據代入模型后，通過分析求解得出非有效的決策單元，再運用包絡分析方法的一些基本原理對非有效的決策單元進行調整，由此所得的數據對陜北地區的實際投入具有很好的指導意義。

Based on the theory of space dividing using envelopment - box, an algorithm to search topological relationship from 3d unorganized points is proposed in this thesis

本文提出了一種利用包圍盒空間分割方法對散亂數據點點雲進行空間分割進而尋求拓撲關系的方法。

By way of c - d ' s function model, using the data envelopment analysis ( dea ) methods, combining concept of equivalent efficient section, the aid of computer optimization and statistics software spss, the author establishes the benefit - measured model of industry - technological advance, quantitatively analyse the industry - technological advance contribution ratio of fujian, carries the comparison analysis with typical provinces in the eastern of our country and approaches the effect ways to promote technological advance of fujian

同時在c - d函數模型的基礎上，運用數據包絡分析方法（ dea ） 、結合等效益面概念，藉助計算機優化、統計軟體spss ，建立工業技術進步績效評價模型，定量測算福建工業技術進步貢獻率，並與我國東部典型省市進行比較分析，探討促進福建工業技術進步的有效途徑。

We reasoned that the ruhr, which we expected to be defended by the strongest forces the enemy could provide, would be best reduced by a double envelopment.

我們因預料魯爾為敵人重兵防守之地，最好採取雙重包圍。

Using theory of partially ordered sets to study data envelopment analysis

偏序集理論在數據包絡分析中的應用研究

The data envelopment analysis of the input and output validity of mining cities

礦業城市投入產出有效性的數據包絡分析

Method of data envelopment analysis based on the theory of partially ordered sets

基於偏序集理論的數據包絡分析方法研究

The application of data envelopment analysis to disposing the polluted mine - water

數據包絡分析在礦井水淡化處理中的應用

Estimating hospital efficiency : the data envelopment analysis with case mix index

模型中應用病例組合指數評價醫院服務效率

Performance evaluation of listed real estate companies with data envelopment analysis

數據包絡分析法評價房地產上市公司績效

Empirical research of construction stocks portfolios based on data envelopment analysis method

法構造股票投資組合的實證研究

Data envelopment analysis for listed company ' s efficiency in electronic industry of china

中國電子行業上市公司效率的數據包絡分析

Evaluation of investment benefit of shengli oilfield with data envelopment analysis theory

數據包絡分析方法在勝利油田投資效益評價中的應用

In appraisal items choosing, we divide the items into three categories : profits, risk adjustment, and fluidness. detailed appraisal items are also set up to mirror the funds achievement comprehensively. in appraisal method choosing, we adopt universality analysis and the common used data envelopment analysis ( dea ) together, i. e., analyze the score of the numbered items first, then use dea and the analyzing software ems to calculate the funds " relative validity and get a rank of fund comprehensive achievement, trying to reflect the funds items and performance objectively

在基金的評價指標選擇方面：將基金的評價指標主要分為三大類：收益類、風險調整類和流動性類，並設定了細分評價指標，力求全面地反映基金的業績水平；在評價方法選擇方面：採用了一般性分析和基金評價中目前較為流行的數據包絡分析（ dea ）相結合的方法，即通過對指標的量化評分進行比較分析，通過數據包絡分析法，利用ems分析軟體計算基金的相對有效性，從而進行綜合業績排名，力求客觀地評價基金的各項指標和綜合績效。

The frontier production function, a parametric function of any form, can be estimated by sample data. this study shows that the projected panel data, which is the inputs and relative exponential maximum output data set, obtained by conducting the data envelopment analysis with the log inputs and output, is approximately piecewise cobb - douglas under a certain assumption

根據前沿生產函數的定義，本文利用投入產出的對數形式和數據包絡分析方法求出了相對指數最大產出，並證明了在一定的條件之下，這種數據結構即所謂的支撐面板數據具有分段近似cobb - douglas性。

The algorithm of dichotomy was applied to find the optimum declination value when the construction of inner and outer envelopment was designed

該演算法使用點對合併的聚合方法來減少點元的數量；構造內外包絡時，使用二分法尋找最佳偏移值。

According to the obtained information source, this paper has carried out a research on efficiency of 19 typical sample banks, including 4 state - owned banks, 9 new stock - holding - system banks and 6 city commercial banks. data envelopment analysis ( dea ) method is applied to calculate the efficiency value of every bank firstly, and then calculate efficiency value of every kind of bank according to different types

根據資料來源的可得性，本文選擇了具有代表性的19家樣本銀行進行了效率研究，其中國有獨資銀行4家，新興股份制銀行9家，城市商業銀行6家，運用數據包絡分析方法（ dea ）方法先計算每家銀行的效率值，再分類計算各類銀行的效率值。

The writer mainly uses the financial ratio analytical method and the most popular approaches in determining the international banking efficiency ? the efficient frontier approaches, in which this paper choose one of the non - parameter approaches, data envelopment analysis ( dea ), to evaluate and analyze the above four banks ’ changes in efficiency before and after mergers during 1999 - 2004, and it also makes an omni - directional comparison from many angles, with quantitative and qualitative analysis

通過綜合運用財務比率分析方法和國際銀行業效率分析中比較流行的前沿分析方法中的非參數分析方法? ?數據包絡分析法（ dea ）對上述四大銀行在1999 - 2004年間銀行並購效率的變化情況進行了全方位、多角度、動靜態相結合的定量和定性比較分析。

As n1 less than 85 %, it gives the open - loop control law of fuel and staff, and when n1 more than 85 %, it adopts close - loop to fuel. the paper designed pi controller and adopted reasonable portion for envelopment. 3. the paper studies transition control process of the engine and gets the main fuel control law of accelerating and decelerating which has been simulated

第二，對其穩態控制過程進行了分析研究，當n1小於85的自始轉速時，給出了供油量與油門桿之間的開環控制規律：當n1大於85的自始轉速時，採用分塊的pi控制方法對燃油進行閉環控制，且對飛行包線進行了合理的劃分，用優化方法設計出了pi控制器並用matlab進行了模擬。

The evaluation index system for middlemen ' s performance is made, and the evaluation of fuzzy indexes is solved by fuzzy theory and data envelopment analysis

運用層次分析法建立了營銷渠道中間商績效評價體系，並用模糊數學綜合評價法和數據包絡分析解決了模糊指標的評價問題。