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Fuzzy logic is studied with algebraic tools in this paper. A kind of algebraic abstract of fuzzy logic, Implication Algebra on a partial ordered set, is given. The relations between Implication Algebra and other algebraic structures, such as MV-Algebra and Heyting Algebra etc., and the filter and the structure of Implication Algebra on a partial ordered set are studied.

本文的目的是使用代数工具对模糊逻辑进行研究，给出模糊逻辑的一类代数抽象，即偏序集上的蕴涵代数，研究偏序集上蕴涵代数与其它代数结构，如MV-代数，Heyting代数之间的关系，以及偏序集上蕴涵代数的滤子与其结构等。

This paper compares periodic set with almost periodic set, and properties of periodic function with that of almost periodic function through analysing the definitions of periodic function and almost perodic function, and then draws some important conclusions.

利用周期函数与概周期函数的定义，把周期函数的周期集与概周期函数的概周期集进行了比较，把周期函数与概周期函数的性质进行了比较，并得出一些重要结论。

A new concept of convex set and its some characteristic properties This paper give a new definition, the support direction of a boundary point of convex set.

2复杂网格的Buffon概率在积分几何中，运动公式是一些定义在定区域与动区域交集上的几何函数的积分公式。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

In this paper a numerical model for simulating propagation and transform ofwater waves in coastal area is set up by using parabolic mild-slope equation inorthogonal coordinates, and the particular format of this equation in conformal systemis also set up.

本文建立了一个基于普通贴体正交网格系统的抛物型缓坡方程模型，并给出了其在保角坐标系下的特殊形式，利用该模型研究了扩张防波堤和环形渠道内波浪的传播这两个典型算例。

In this paper,a set of exercisable measurement set is developed,which can be used to measure the structure features （such as complexity,coupling,morphology） of software architecture models.

提出了一套可操作的度量组，利用该度量组可以对软件体系结构模型的结构特征进行测量。

This paper presents an introduction to Pelton type hydraulic-generator set for Yunnan Supa river A'Jiutian hydroelectric power station, is of domestic maximum capacity Pelton type hydraulic-generator set designed and manufactured by our company for the moment.

本文介绍了我公司为云南省苏帕河阿鸠田水电站设计制造的冲击式水轮发电机机组，系我国目前自行设计制造的国内最大容量的冲击式水轮发电机机组。

In this paper, we had developed a set of new procedures for constructing a set of orbitals with thoroughly separated π and σ orbitals, highly localized, symmetrical, orthonormalized and have correct electron occupancies to the rigid molecules with C〓 symmetry.

在本文中，我们为具有C〓对称性的刚性桥分子建立高度定域的、正交归一的、对称的键轨道基组提供了全新的方法，并且每个轨道具有正确的电子占据数。

Me The company has Asia's largest paper roll and roller combination of pieces of paper stocks, model specifications for the most all-leather roller type, the introduction of a full set of leather roller±maintenance equipment, ready to provide you with the most comprehensive maintenance program to address the textile combing machine and the provision of Machine Paper Roll back unloading, loading kits, Grinding Services package.

我公司拥有亚洲最大的皮辊及皮辊结合件库存量，型号规格最全的皮辊种类，引进了瑞士贝克全套皮辊保养设备，随时为您提供最全面的保养计划，解决纺织精梳机，并条机皮辊提供退卸，装套，磨削整套服务。

In this paper,some equivalence properties of one-valued selection under the set-valued mapping is introduced and give a sufficient and necessary condition of set-valued mapping being a metric projection.

介绍了集值映射的单值选择的几个等价性质，并给出了集值映射成为度量投影的一个充要条件。结果将度量投影情形推广到了集值度量投影情形

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。