simultaneous differential equation

A Community Satisfaction Model Based on Simultaneous Equations;

基于联立方程的社区满意度模型

We try to research empirically and illustrate the relationship between the environmental and economic performance of firm through building the simultaneous equations and adopting the datas of the European some country and Chinese some region paper industry.

　通过联立方程模型把环境绩效和经济绩效结合在一起,并借鉴意大利、荷兰及我国某地区造纸行业的数据进行了实证研究,发现这种方法可以验证环境绩效与经济绩效之间的关系,研究结果比较支持传统学派的观点,但这并不表明修正学派的观点没有价值,只是因为本文只针对一个特殊的行业造纸业,而且考察的只是企业短期的经济绩效,如果考虑环境污染给社会带来的外部成本,那么结果可能相反。

The article presents a simultaneous determination method for three kinds of water-soluble dyes: acid red, acid brown and acid black by solving simultaneous equations using a UV-VIS spectrophotometer.

介绍了利用解联立方程组的方法,在紫外可见分光光度计上实现了对酸性红、酸性棕和酸性黑的混合染料中三种成分浓度的同时测定。

Using the method of stepwise regression the regression equation was established to analyze the influence degree of chemical component to hardenability of 40MnBH steel The simultaneous equation of component inter control regulation was deduced by means of probability analysis The percent of pass of hardenability beyond 97 5% was achive

利用逐步回归分析的方法 ,确定了 4 0MnBH钢的淬透性与化学成分之间的回归方程 ,以便分析化学成分对淬透性的影响程度 ,并应用概率论推导出求解成分内控规范的联立方程 ,使淬透性合格概率大于 97 5%。

The methods for determining the reagents whose purity is known and for solving the simultaneous equations of the areas of chromatographic peaks,correction factors and the total amounts of all components are mainly studied mainly.

着重介绍了已知纯度物质的测定法及解峰面积、校正因子和各组分量之和联立方程组测定法。

Objective Economic simultaneous equations of military hospital logistics were set up to get the measures of enhancing the socializing quality.

目的建立军队医院后勤保障社会化质量控制联立模型,探讨提高军队医院后勤保障社会化质量控制措施。

Firstly, the local behavior of the joint spectrum of matrices is investigated, then an algorithm based on Rayeigh quotient theory is proposed, Finally, several perturbation theorems are proved.

首先分析了联立谱的局部性质，然后基于Ｒａｙｌｅｉｇｈ商理论给出一种求解方案，最后研究扰动理论，建立了Ｇｅｒｓｃｈｇｏｒｉｎ圆盘理论、Ｂａｕｅｒ－Ｆｉｋｅ型定理、Ｗｉｅｌａｎｄｔ－Ｈｏｆｆｍａｎ型定理，证明了联立谱的半连续

Panel data was applied in the analysis and Three-Stage Least Squares was used to make simultaneous equation analysis.

本文通过公司股权集中度与企业业绩的联立模型,对影响股权集中度的主要因素进行了实证分析,在分析中采用面板数据(panel data)并运用三阶段最小二乘法(Three-Stage Least Squares)进行联立分析,弥补了以往的对股权集中度研究的单一截面数据和将股权集中度与企业业绩外生化的缺陷,通过分析发现除了资产规模外的企业业绩、持股主体和行业分布均有显著影响,在取得结论的基础上提出了一些建议。