On the has of fuzzy mathematics principle,this paper analyses fuzzy reliability of over -current release of DW15 type air circuit breaker; with viewpoint of system reliability,this paper gbes out fuzzy reliability of the over-current release at its acting 1000,2000 times.

According to fuzzy mathematics principle,this paper put forward high-quality wheat fuzzy synthetically judging method of three varied kinds information synthetically weight assign-varied coefficient weigh,information amount weigh,excellent from square sum weigh.

Based on fuzzy mathematics principle and fuzzy mathematics evaluation and review model, a fuzzy mathematics model for financing decisionmaking is founded to evatluate various financing plans synthetically.

The paper deals with the fuzzy probability calculation of welding seam of pressure vessel resisting fracture according to fracture mechanics theory and fuzzy mathematics principle.

Moreover in terms of the fuzzy mathematics principle,we gave a fuzzy synthetic evaluation to the single well engineering project,and applied it in reality.

Using fuzzy mathematics principle,this paper analyses the stock market, and applies fuzzy comprehensive,evalution method to determine the individual stock choosing. Moreover a computer aided stock choosing system was programmed by author.

In order to overcome the shortcoming of the un precision of traditional biological evaluation, the method by using fuzzy mathematics principle to choose various biological indexes to from the membership functions of boundary line of appraisal result so as to describe the water quality grade has been put forward in this paper.

Using fuzzy mathematics principle,this paper sets up a mathematics model based on the annual report,and obtains two kinds of methods to select the stock. Not knowing the accurate mathematics model,this method possess some characteristics of simplicity, manipulation, practicability and so on.

The forests in this area were severely ruined by reason of history. Accordingly,what mainly needs to be done is to plant on the desert land and to afforest on the barren hills and the wasteland. However,the current evaluation methods of soils are hardly fit for the local conditions. The characteristic of this kind being taken into consideration, evaluation object was completely confined to the soil itself. On the basis of a great deal of investigation and soil analysis, 10 items of soil texture, bulk density,...

The forests in this area were severely ruined by reason of history. Accordingly,what mainly needs to be done is to plant on the desert land and to afforest on the barren hills and the wasteland. However,the current evaluation methods of soils are hardly fit for the local conditions. The characteristic of this kind being taken into consideration, evaluation object was completely confined to the soil itself. On the basis of a great deal of investigation and soil analysis, 10 items of soil texture, bulk density, moisture, gravel content, soil thichness,.O. M. , total N,available P, pH .md calcium carbonate were chosen as evaluation factors on the principle of the combination of an all-round way with major points. And these factors were divided into three kinds of different characteristics, i. e. physica(from the 1st to the 5th) , nutritive (from the 6th to the 8th) ,and chemical (from the 9th to the 10th) in accordance with different properties.Following these,a group of experts was invited to conduct the index gradation and the weight distribution of evaluation factors. And then an expert system was established through a certain technical treatment. Based on the fuzzy mathematics principle,the soil quality was comprehensively judged.To sum up all the present evaluation methods of soils, there are 2 types; the gradation method and the score method. The gradation method is not of qualitive idea. The score method has obvious subjectivity. In order to overcome these shortcomings the fuzzy comprehensive judgement technique was applied to the soil evaluation. J. It uses the index system performed by the experts, which can strengthen objectivity of the results;2. The results were directly acquired by means of a series of operation; 3. Because the result was expressed in a vector, it was more entire than the score method's result which can be expressed by only one numerical value.

This paper introduces a new technique in electronic stabilization of video images using the LSI full-digital signal processor and the algorithm con- trolled by fuzzy mathematics principle. It eliminates fluctuation effect of images captured by the handheld video cameras so that image quality is improved. It may be widely applied to video image processing.

On the has of fuzzy mathematics principle,this paper analyses fuzzy reliability of over -current release of DW15 type air circuit breaker; with viewpoint of system reliability,this paper gbes out fuzzy reliability of the over-current release at its acting 1000,2000 times.