The linear regress and quadratic regress mathematics models of static drift data were established,which linear drift rate and quadratic drift rate respectally were-5.5×10~(-5) and 5.02322×10~(-8).
Then study the benefit-risk coordination mechanism by the cybernetics and contract theory, Therefore we discuss the mechanism of the contract, Zonta collaborate, conflict management and interior correspond, and build a series of mathematics models.
Orthogonal regression of ternary quadratic were tested by the factors of applying N,P2O5 and organic manure in Huangjiazhai town Datong county during 2002—2003.The mathematics models were established. The analyzed results showed,broad bean yield effect function of factors were N>M>P2O5 in the place process of broad bean culture.
Theory analysis is studied about energy absorb in the case of static and dynamic axial crushing for metal circular tube filled with aluminum foam. Mathematics models are got about energy absorb and its structure parameters relation.
3.By three difference methods about data dealt with, mathematics models for the growth and yieldof the Robinia pseudoacacia artificial stand were set up.
In this paper, meaning of mathematics models in quality education is considered and some suggestions to develop mathematics models in science and technology are put torward.
The paper regards the existing transmission systems as a cooperative investment that is formed by all the users based on the investment benefits of scale in the transmission grid, regards the fixed cost allocation problems of transmission systems as the costs allocation problems of cooperative game theory, and mathematics models are setted up using the nucleolus method at the same time, moreover simulations are made with a IEEE 14-bus system.
The mathematics models used in the prediction of electromagnetic interference between radar systems are obtained, in which the interference prediction equations are given.
In the test, choose the angle contact bearing as test bearing, and work in the different position of spindle system, then test the temperature and vibration of the bearings in different speed and different loading, and analysis the data to verified the mathematics models.
Several new theories, new methods and new models were proposed: methods of quality information acquirement, transmission and disposal; methods of Intelligent Statistical Quality Control; mathematics models of quality prediction;
Using the new mathematics models, we present the control mesh representations of two classes of minimal surfaces.
When these results are applied to some special delay bio-mathematics models, some new results are obtained, and many known results are improved.
It can make the drawing of these knobs quantitatively and establish corresponding mathematics models.
The virtual worlds are given by mathematics models and software programs.
The airscrew included various propellers, fans, windmills and helicopter blades, etc. In an earlier paper [2], we suggested the Mathematical model of helicopter rotor airfoil. In this paper we shall concern ourselves with the problem of describing surfaces of the propellers.Instead of subdividing a surface into parts or "patches" we shall investigate ways to treat it as a whole. This method is simple to implement and computationally efficient.After making a series of researches, the mathematics model...
The airscrew included various propellers, fans, windmills and helicopter blades, etc. In an earlier paper [2], we suggested the Mathematical model of helicopter rotor airfoil. In this paper we shall concern ourselves with the problem of describing surfaces of the propellers.Instead of subdividing a surface into parts or "patches" we shall investigate ways to treat it as a whole. This method is simple to implement and computationally efficient.After making a series of researches, the mathematics model of airplarce propellers has been established. A routine is made by using ALGOL-60 language according to the presented method.
The cost of the cupola burden would be the lowest under the conditions in which the computer is used to obtain the optimum burden ensuring chemical composition and characteristics of the molten iron. The article delivers the mathematics models, computer programme and something about the burden during the process and its analysis of the economical result. The process has been used in casting at HT15—33 in the Harbin Boiler Works, and the cost has been cut down by 11.41%. On July 14, 1980, approval was made...
The cost of the cupola burden would be the lowest under the conditions in which the computer is used to obtain the optimum burden ensuring chemical composition and characteristics of the molten iron. The article delivers the mathematics models, computer programme and something about the burden during the process and its analysis of the economical result. The process has been used in casting at HT15—33 in the Harbin Boiler Works, and the cost has been cut down by 11.41%. On July 14, 1980, approval was made by the Harbin Institute of Science and Technology. The process is considered to be a new, advanccd and reasonable one with certain economical value, thus it should be recommended to spread.
A nuclear power system is very vast and complex. Whole national nuclear power may consist of several types of reactors. These types of reactors make up a symbiotic fuel cycle system. The technology of thermal converters hasmatured and its power generation cost is cheaper. But its uranium utilization is lower. Although the gain of nuclear fuel for FBR is very fast, more inventory of fissible fuel and higher capital cost are needed, and the inventory during initial stage of FBR development must be supplied by...
A nuclear power system is very vast and complex. Whole national nuclear power may consist of several types of reactors. These types of reactors make up a symbiotic fuel cycle system. The technology of thermal converters hasmatured and its power generation cost is cheaper. But its uranium utilization is lower. Although the gain of nuclear fuel for FBR is very fast, more inventory of fissible fuel and higher capital cost are needed, and the inventory during initial stage of FBR development must be supplied by the thermal converters. So there exists an optimal mix of thermal converters and FBR, which can achieve better economic effect in this system. Besides, the economic scale of nuclear industry enterprises is all very large now. It is necessary to consider the appropriate introduction schedule of these enterprises.This paper describes the dynamic linear programming model developed for a nuclear power system. Based on the physical essence of each process in this system and nuclear fuel flows, the various equilibrium equations and restraint relationships of variables are set up. These mathematics models describ the wbnle physical process of nuclear fuel cycle. Both linear programming and mixed integer programming are used to solve these problems. The primary results have welt represented the dynamic characteristic of whole system and given out the activity level of each process. the flow rate of nuclear fuel between processes and the number of ecomomie scale enterprises in each time period under optimization condition. The dynamic linear programming model is an efficient approach for project of the nuclear power system.
mathematics models
数学模型
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