模糊度

Applying LMI technique, quadratic stability theory, and H〓 control theory, three methods of robust stability analysis and robust controller design for uncertain fuzzy systems are proposed respectively. Among them, LMI based technique can analyze the uncertainties raised in the premises and in the consequent of fuzzy systems. The resulting stabilizing state feedback controllers have maximum stability margins for both kinds of uncertainties. Quadratic stability theory based approach can apply LMI technique and other methods to design fuzzy controllers. H〓 control theory based design can get H〓 controller with constant disturbance attenuation for each local subsystem. Using the given stability criterion of generalized systems, the robust stability of fuzzy systems can be checked.

其中，基于LMI的方法可分析由模糊系统的前件或后件引起的不确定性，得到的稳定的状态反馈控制器对这两类不确定性具有最大的稳定裕度；基于二次稳定理论的方法可应用LMI技术和其它方法设计模糊控制器；基于H〓控制理论的方法可得到各局部子系统具一定干扰抑制性能的鲁棒H〓控制器，而全局系统的鲁棒稳定性可应用所给出的稳定条件进行检验。

It overcomes all the errors and shortcomings of Zadeh's fuzzy set theory: it correctly reflects different kinds of fuzzy phenomena in the natural world; set complement exists on it; it has uniform calculating formulas for membership; it satisfies all formulas of the classical set theory and is consistent with classical and normal thinking, logic and concepts.

新理论能克服Zadeh模糊集合理论的三个缺点和两个错误；能正确地描绘客观世界的全部模糊现象；有补集；隶属度有统一的计算公式；并且是经典集合系统的特例，能满足全部经典集合的公式，与正常思维、逻辑和概念一致。

At last, the system started evaluation calculation after selecting the composition operator; the evaluation control module constructed the fuzzy subjection matrix, obtained the weight and then transferred both of them to calculation module; calculation module used the corresponding composite algorithm, finished fuzzy composite operation.

最后选择合成算子，启动评估计算，评估控制模块将构造模糊隶属度矩阵和提取指标权重传递给评估计算模块，评估计算模块根据相应的合成算法，完成模糊合成运算。

Then, a continuous soil horizon thickness distribution map was drawn with the aid of ARC/info software based on samples collected at the area with high value of fuzzy membership and population of the similarity model using the linear and additive weighting function.

通过对研究区地形因子的模糊聚类，提取了地形因子组合与特定土壤属性的定量隶属度关系，然后对隶属度高值区土壤进行目的性采样为隶属度函数赋值，制作研究区土层厚度连续分布图。

In this paper,a new index for measuring validity of the maximum subordination principle is designed.

本文提出一种新的测量最大隶属原则有效度的指标，根据数值给出有效度等级的划分标准，结合中医实例说明利用有效度能够使模糊综合评判的方法更加完善。

Concerning the problem of ascertaining nonmembership functions of Intuitionistic Fuzzy Set, a technique for ascertaining non-membership functions based on priority ordering method was proposed, whose algorithm and steps were presented in detail with the demonstration of rightness in theory. Then, the time complicacy and application area were analyzed and discussed.

针对直觉模糊集非隶属度函数难以确定的问题，提出一种基于优先关系定序法的IFS非隶属度函数确定方法，给出了详细的算法步骤，从理论上证明了该算法的正确性，并分析了算法的时间复杂度与适用范围。

So the article puts forward a series of measures and suggestions that the loan risk should be controlled from loan whereabouts. Secondly, the paper has established a system of credit levels of enterprises' loan and the vague comprehensive evaluation of project risk .By objectively analyzing the risk elements and related links in all aspects, the article has set up a relatively all-round risk elements matrix and raised the relevant construction approach of subordinate angle function according to the state value of risk elements.

第二，本文建立了项目贷款企业信用等级和项目风险的模糊综合评价体系，用层次分析法对风险因素及其相关联系进行定量的分析，构建了比较全面的风险因素判断矩阵，根据风险因素的状态值分别提出了相应的隶属度函数的构造方法，然后对其进行模糊综合评价，对不同的模糊评价模型进行了讨论，为商业银行加强项目贷款贷前风险管理，进行风险识别和评价提供了有效的工具。

This method is about which bridge engineering quality is integrally evaluated by using the fuzzing mathematical, hi the course of fuzzy integrated evaluation, firstly, the specialists weight coefficient is defined and the score of qualitative indexing is calculated. Moreover according to the practical situation for project, the specialists present the weight coefficient for subdivisional project and partitioned project.

在建立模糊综合评定模型的过程中，首先确定专家的权重，计算定性指标的得分；再由专家根据工程实际情况给出分项、分部工程的权重，根据分项工程的评分，计算其隶属于评定等级的隶属度；最后由模糊数学模型对桥梁工程质量进行模糊二级综合评定，得出最终的评定结果。

A study was performed of the randomness of external loads on high arch dams,including flood,earthquake,landslide of mountains,etc.,the weakening of concrete strength of arch dams and rock strength of dam foundation,and the fuzziness of evaluation criterion.The disadvantages of conventional deterministic assessment methods for the safety of arch dams based on the strength theory and stability theory were analyzed respectively.It is suggested that fuzzy mathematics theory should be introduced to safety evalua...

研究高拱坝洪水、地震、山体滑坡等外载荷，坝身混凝土、坝基岩石材料强度弱化等的随机性，以及评价准则的模糊性；分析了高拱坝分别基于强度理论和稳定理论确定性评价方法的不足，提出应该利用模糊数学方法解决具有随机性、模糊性的高拱坝安全评价问题；建立了基于结构可靠度理论的高拱坝失效概率故障树模型并给出了具体算例。

To counter the case which worm gear lost efficacy of rotating screen barrel rice mill ,reliability design theory was applied to analyze it.

针对旋筛式碾米机蜗杆传动时有失效的情况，运用模糊可靠性设计理论对蜗轮的强度进行分析研究，找出了蜗轮接触疲劳强度可靠度不足而失效的原因，将蜗轮材料由铸铁改为铝铁青铜，提高了蜗轮—蜗杆接触强度可靠度和弯曲强度可靠度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。