The Application of Fuzzy Theory to Power Load Forecasting

A new method was presented for power load forecasting.Based on the fuzzyclustering technique,the historical samples of power load and its relative environmental factors wereclassified into several typical categories,the fuzzy numbers and sets were then used to describe thepatterns of load variation and the features of the environmental factors for every class. Finally,byunderstanding the state of future environmental factors, the future power load can be predictedthrough determining the category of load variation pottern. The validity of the proposed method wasverified with a practical medium-term load forecasting.     

Multilevel Fuzzy Theory Evaluation of the Tourism Resources in the Three Gorges Reservoir

Complexity of mutual act and different sensation of different tourists are important factors influencing regional tourism resources evaluation. Fuzzy mathematic method can be used to up quantitative evaluation method on tourism resources evaluation. Taking Wushan Small Three Gorges as an example, the author carries out the evaluation of the tourism resources in the Three Gorges Reservoir. At the same time, the authors consider that five factors, such as improvement of the comunication of tourism resources, quickening the Steps of urbanization in reservior area, must be done well.     

The Application of Fuzzy Neural Network in the Detection for Moving Object

A fuzzy neural network(FNN) of detection for moving object based on BP algorithm is described in this paper.The correctness of the FNN in signal detection for moving object and fault diagnosis for instrument is proved by experiments.     

Application of Fuzzy Mathematics in the Evaluation of MSW Compost Quality

Through selecting the index of MSW compost quality and establishing the evaluation grades of index, an evaluation system with the method of fuzzy mathematics has been framed in this paper. Then, based on the assessment of single factor and comprehensive effects of different factors, in this paper, the experimental data are taken for example to evaluate the MSW compost quality. The result shows that this method is successfully applied and also can be used as a simple useful method to the evaluation of MSW compost quality.     

The Fuzzy Inputing And Outputing Method in Vibration Fault Diagnosis of Steam Turbine-Generator Set

A fuzzy neural network diagnosis model is established on the basis of the vibration failure features of steam turbine-gernerator set, two kinds of fuzzy inputing method are discussed. At last, the performance of the fuzzy neural network is compared with that of the conventional BP network. The results show that the method presented is suitable for identifying the vibration failure of steam turbine-gernerator set, and it is more efficient in deal with the uncertain data than BP network diagnosis.     

Application of Fuzzy Pattern Recognition for Selecting Comparable Instances in Real Estate Appraisal

When the market comparison approach is operated in real estate appraisal, the puzzle, how to select the most similar instances in many comparable instances, is confronted. In this paper, how to apply the fuzzy pattern recognition to solve the puzzle is explored. This paper has threefold: 1) to review and introduce some conceptions about the fuzzy pattern; 2) to discuss how to establish the fuzzy pattern recognition's model for selecting comparable instances and 3) an example is used in the model to testify it's reliability and scientific nature.     

Application of Multivector Algebra in Real Space-time to Set Pair Analysis

The contact number is an important mathematical tool of systems theory and methods in the monograph Set Pair Analysis and Its Preliminary Applications written by Zhao Keqin for unitizedly processing the uncertainties due to the fuzzy, stochastic, intermediate and information uncomplete about something. The article applies the multivector algebra which is isomorphism with the real Dirac algebra in the real space-time adopted by Venzo de Sabbata to the contact number of set pair analysis, and consequently, the contact number is generalized correspondingly.     

Application of Systematic Fuzzy Clustering in the Analysis of Real Estate Markets

This paper discusses mainly how to use the method of systematic clustering to subdivide the markets of the real estates and choose target markets. Then a method for solving this problem was put forward.     

Application of Fuzzy Variable StructureControl in Generator Excitation System

In order to solve the problem of the high frequency shiver,a novel fuzzy variable structure control approach is presented by combining the fuzzy control with the variable structure.The proposed approach is successfully applied to the generator excitation control.The digital simulation results show that the proposed approach is very effective.     

Application of Fuzzy Control in Direct Torque Control of an Induction Motor

The key of motor control is to control motor's torque essentially.Direct torque control,which emerged after the field-oriented control,directly stresses the instantaneous torque control of induction machine,which avoids some problems existing in field-oriented control,thus,it gets more attention.In conventional direct torque control system,switch vector is selected directly by the errors of stator flux-linkage and torque,after introducing fuzzy logic,optimal selecting switch state is realized by various strategies by distinguishing the grade of the errors of stator flux-linkage and torque,the dynamic and steady state performances of induction motors are improved.This paper presents a design method of the fuzzy controller.Simulation results demonstrate that it is effective,the stator currents pulsation at start-up and the torque pulsation are decreased.     

基于AHP与Fuzzy在供应商绩效评估中的应用

对供应商的绩效进行评估,是建立一个有效供应链至关重要的环节,它不仅有利于选择合适的供应商,同时也起到了让供应商企业自身发现问题,并不断提高的作用。在实际问题中,对供应商的绩效进行评估时,数据经常具有模糊性,并且很多因素权重难以度量,使得整个评估工作变得主观化,导致评估结果不理想,不能真正反应供应商的绩效水平。采用层次分析法与模糊理论对影响供应商绩效的因素进行分析,得出了一种有效的对供应商绩效进行评估的方案。     

Effect of Disturbance on the Cylindrical Cavity Expansion in Saturated Soft Clay

According to the fact that the undrained shear strength decreases in the field vane test,applying the cylindrical expansion theory and assuming that the saturated soft clay satisfies Tresca yield criterion,the disturbance degree function D is given on the basis of the sensibility of saturated soft clay.Considering that the undrained shear strength is the linear function of the disturbance degree D in plastic region,the elastic-plastic solution of the cylindrical expansion has been gained.     

Analysis of Construction Risk for Water Piers and Foundations with Double-wall Steel Cofferdam Based on the Fuzzy Fault Tree Theory

Construction risk for water piers and foundations with double-wall steel cofferdam was analyzed by the fuzzy fault tree theory. An evaluation method of construction risk for water piers and foundations with double-wall steel cofferdam was proposed. Fuzzy fault tree of construction risk for water piers and foundations with double-wall steel cofferdam was established based on Yingwuzhou Yangtze River Bridge. 31 bottom events were considered in fuzzy fault tree model according to 2 water pier and foundation with double-wall steel cofferdam. Key process of construction risk was obtained and risk prevention measures were proposed.Results showed that fuzzy number of construction risk probability for water piers and foundations with double-wall steel cofferdam was(0.05015,0.05278,0.05542). Construction risk of 2 water pier was highest. And weld leakage, pile broken and sand boiling were the key processes with higher construction risk. There fore appropriate prevention measures would be taken to reduce the construction risk for water piers and foundations with double-wall steel cofferdam.     

Two-level Fuzzy Method for Evaluation of the Supplier''s System in Automobile Industry

This paper analyses the importance of the suppliers' evaluation in automobile industry. Based the conception of system, all the corporations' suppliers are regarded as an integer. On condition that the corporation has evaluated the single supplier's performance, the model for evaluate the performance of supplier's system is established, the performance by two-level fuzzy method is evaluated. Finally, the method sets with an example as the illustration.     

灰色模糊综合评判在筛选杂交油菜信油2709的应用

运用灰色模糊综合批判对信阳市农科院自选的10个杂交新组合的品比试验结果进行分析.结果表明：新组合10个性状小区产量、株高、一次有效分枝数、主花序长度、主花序角数、主花序角长、主花序结角密度、单株总角数、每角粒数、千粒重的权系数分别为：0.140、0.106、0.085、0.097、0.102、0.091、0.101、0.092、0.092、0.095;杂交新组合的灰色模糊综合评判大小顺序为：K＞K5＞K10＞K1＞K3＞K8 ＞K2＞K6＞K7＞K9;其中K（信油2709）的综合评价值是0.6288,综合表现最大,其次是K5,综合评价值为0.6084,K9综合评价值是0.2699,综合表现最差.结果与以产量性状进行方差分析的结果来看,灰色模糊综合批判筛选的杂交新组合与实际情况基本一致.其中,信油2709在灰色模糊综合批判筛选中表现最好,.信油2709在河南省优质油菜区域试验、生产试验中表现较为突出,现已顺利通过审定,审定编号为豫审油2012001.以此筛选杂交新组合是一种较为全面的、客观的、合理的鉴定方法.     

来自小麦基因组的SSR标记在早熟禾亚科植物中的通用性分析

引物的通用性研究对于降低引物开发的成本具有重要的意义。为此,本试验选取来源于小麦基因组的41对SSR引物,对其在早熟禾亚科不同属4种植物中的通用性进行了分析。所选取的41对引物在大麦、燕麦、小黑麦和三芒草4种供试植物中的扩增成功率分别为73.2%,82.9%,87.8%和85.4%,有些引物在特定植物中还会出现特异性条带,以上结果表明,从小麦基因组上开发的SSR引物,在早熟禾亚科不同种属植物间有较高的通用性。     

The Fuzzy Comprehensive Evaluation of the Risk of Technology Innovation for Enterprises

The author establishes a risk evaluation index system of technology innovation according to the character of technology innovation . In this index system, technology risk, the capability of coporate risk, market risk are taken into consideration as well as the situition of the interior and the exterior of coporate besides the difficulty of the technology. The index-weighted is calculated with AHP and the whole process of fuzzy comprehensive evaluation is developed , which gives the accurate evaluation for the echnology innovation risk and can be guided by an enterprise for control the risk. At last, an example is given.     

Effect of Source Manipulations on the Dynamics of Pod Set and Flower Abscission in Mungbean

Flower abscission and pod set behaviour of mungbean in relation to the degree of defoliation at the reproductive stage was studied under field conditions. In the undefoliated and partially defoliated plants flowering occurred in two successive flushes, although the second flush of flowering was less distinct in partially defoliated plants. Most of the pods a plant attained came from the second flush of flowering. Undefoliated and partially defoliated plant had 23 and 8 pods, respectively. Magnitude of flower abscission and pod set in undefoliated plants was much higher than it was in partially defoliated plants. In the completely defoliated plants none of the pods survived to mature and death of plants occurred within a week following defoliation.     

Application of Fuzzy Comprehensive Judge Method in Determining Supplying Risks in Automobile Parts Enterprises in an Uncertain Environment

Based on analyses of the main factors that influence the supplying risks in automobile parts enterprises within our country,a supplying risks judgment system is established. To determine the risks, a fuzzy comprehensive judge method is put forward with AHP method. In the end, with an example of a company, supply risks are analyzed, which provides a referential method for determining supplying risks in automobile parts enterprises.