查询词典 non-corroding

The existence of classical solutions to non-divergence quasilinear parabolic equation of second order has been proved by basic knowledge of non-linear functional analysis and implicit function theorem in banach spaces.

用非线性泛涵分析的基本知识和Banach空间上的隐函数定理证明了非散度型拟线性抛物型方程古典解的存在性。

Looking into the basic causes of the dissustainablity of the non-renewable energy resources, the writer in the paper points out that people have made a drawback of the value of the non-renewable energy resources, and an inadequateness of the value compensation of it.

探究人类对非再生能源资源的掠夺式开发与浪费式使用的根源，主要在于人类对非再生能源资源的价值认识的缺陷和对其价值补偿的不足。

Led by incorporator Norma Elizabeth Boyd, the sorority created the National Non-Partisan Lobby on Civil and Democratic Rights in 1938, later renamed the National Non-Partisan Council on Public Affairs.

在诺玛·伊丽莎白·博伊德的带领下，姐妹会于1938年创建了全国无党人士公民和民主权利游说团，后来更名为全国无党人士公共事务委员会。

Standard Arrowian microeconomics suggests that technological information should be considered a public good, in that its use is non-excludable and non-rival and its production and use are characterised by high levels of indivisibility; it can also be easily transferred and learnt at little cost.

standard arrowian微观经济学表明，技术信息，应该被视为社会公益事业，在其使用的是，非排他性和非竞争性，以及其生产和使用的特点是高层次的不可分割性，它也可以很容易转移，据悉，在以较小的代价。

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。

Principle of d′Alembert Lagrange for a system relative to a non inertial reference frame and non isochronal variation is first presented.

本文研究了单面非完整系统相对于非惯性系的 Noether定理及逆定理。

Chinese ink painting through observation of the characteristics of in-depth analysis, investigate the current non-photorealistic graphics technology development, as well as a deeper understanding of the current graphics hardware knowledge, this paper presents the use of programmable graphics hardware to deal with real-time three-dimensional model is converted to ink the effect of non-photorealistic graphics rendering method and ink to do a variety of research, as well as splash-ink style animation and keyframe animation research.

详细说明：通过对中国水墨画特点的深入观察分析，调查当前非真实感图形学技术发展以及深入了解了当前图形处理硬件的相关知识后，本论文提出了利用可编程图形处理硬件将三维模型实时转换为水墨画效果非真实感图形的渲染方法，并做了多种水墨风格的研究以及泼墨动画和关键帧动画的研究。

It has an advantage of innocuity, non-residual and non-pollution which is not substituted by any general way. The performance of the sterilization and modification is very good.

具有无毒、无害、无残留、无环境污染的其他传统方法无可替代的优点，辐照加工过程可控制，灭菌、改性效果极佳。

Nation Health Ministry just announced a recent research result about the death reason of resident all over the country in 29th Apr 2008, this data shows that, the chronic non-infective disease becomes the mainly death reason, and at the same time the infection, month-kid disease and innutrition related disease become less and less important, the rate that chronic non-infective disease cause death become more and more important from 76.5% in 1990s to 82.5% now

2008年4月29号，卫生部公布了的三次全国居民死因调查结果，此次调查的结果显示，慢性非传染性疾病导致是主要的死亡原因，而传染病，母婴疾病和营养不良性疾病的比例逐年下降，慢性非传染性疾病导致的死亡所占比例由90年代的76.5%上升到目前的82.5%。

This thesis simply defines the rational factors and irrational factors and points out that the irrational factors have the characters of emergency, instantaneousness, illogicality, non-consciousness, non-language and so on, and discusses function of inspiring, promoting, exploding and adjusting of the irrational factors to the human cognition.

本文对"非理性因素"、"理性因素"的概念进行了简要界定，指出了"非理性因素"具有突发性、瞬时性、非逻辑性、不自觉性、非语言性等特点；探讨了"非理性因素"对人认识的激励作用、推动作用、激发作用和调节作用；同时就"非理性因素"中的"情感"进行分类探讨。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。