An EOQ Model for Non-instantaneous Replenishment with Partial Backlogging

It is usually ignored in the traditional EOQ model that the opportunity cost results from lost sales when the enterprise has no commodity in the wearhouse. This paper focuses on some operating enterprise.Under the condition of time_limited partial back_orders and non_instant supply,an EOQ model is established of which it is more reasonable to assume the loss of without commodity in the warehouse divided into two parts:the opportunity cost due to lost sales and the shortage cost.It is discussed that the general cost function and the optimal solution to minimizing the total cost.The new basis of the decision of store system management is provided.Moreover,the model is applied to the example.     

A Study on the Influence of Decision upon Stock Price

This paper applies the multiple linear regression to study the influence of dividend decistion on the stock price.The result of research displays stock for the influence order from big to small:earnings for share,stock dividend,cash dividend.     

On the Extension of the Stock Model

Stock model of economical order batch is established under the objective of maximum total profit according to the hypotheses of constant demand rate.Based on these facts,the author suggests that the stock model of economical order batch is established under the objective of maximum total profit in system according to the hypotheses of demand rate's relying on selling price.From which one extended a model can be deduced.By using extreme-value theory,the model is proven mathematically and the method of solution is deduced for optimal order batch,optimal selling price and how to define optimal order cycle,and the sensitivity analysis has been made.One applied example is also given.     

The Analysis of Price Situation and the Forecast of Price Index of China in 1995

The essay analyses first cause of formation of price big increasing of China in1994,and forecasts prics situation in 1995 according to the diversity and complexity of price in-creasing cause and Box-Jenkins model,via test the forecasting result is gualified and is quite a greedwith practice,Finally,we put forward several views of controling price increase in 1995.     

Construction and Confirmation of a Model for Time Dependent Resistance of the Steel Structure Project

We developed a model of time dependent resistance for a steel structure project and discuss herein the expression and the primary value of many parameters in the model. On the basis of the APDL language furnished by universal finite element program, we united the functions of structural and statistic analyses. A time dependent reliability analysis was implemented. The result of the time dependent reliability analysis was compared with that of the no time dependent reliability analysis. Through testing a calculated example, we saw that when the time dependent resistance was considered, the factor of time greatly influences structural reliability. In addition, we found that the model of time dependent resistance for a steel structure is reasonable and feasible.     

Price Regulation Model of the Electricity Industry

The causes result in California electricity crisis are various, however, one of most important causes is the government did not feedback the electricity demands in their regulation of the electric price. This paper builds some incentive regulation models on the price, which are based on the compare of the two species of electricity price regulation model and considers the characteristics of the electricity power market in China. The models can feedback the electricity demands by mimicing compet market and can give the Chinese government some advices how to regulate the electricity price.