查询词典 modification

Remote argon plasma can inactivate E.coli effectively and at the same time bring better surface modification of PTFE.

远程氩等离子体在有效杀灭大肠杆菌的同时，可使PTFE表面获得更好的改性效果。

This dissertation applies Balanced Scorecard to the performance evaluation system of our country and according to the facts of our country, the paper make some modification such as revising some financial evaluation index, adding employee evaluation block and so on. The dissertation brings forward a new evaluation system of company performance based on BSC to ensure the scientific decision for company and enhance the companys performance.

本论文将Balanced Scorecard引进我国的企业效绩评价系统，并根据我国的实际情况加以改进，修改了部分非财务评价指标，增加了员工评价指标模块，提出了适于我国国情的基于BSC的企业效绩评价系统，以保证企业决策的科学性，提高企业的经营效绩。

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。

Cities state, oneself still are at present " demon animal world " operation square, because 9 cities and user are the both sides of user agreement respectively,"The to contract provision modification that without the contract the autograph just agrees with to be undertaken by tripartite about is inefficacious to contract both sides ".

九城声明，自己目前仍是《魔兽世界》的运营方，因九城和用户分别是用户协议的双方，"未经合同签约方同意由第三方进行的对合同条款的修改对合同双方并无效力"。

In this paper, the authors analyze the problems existed in modifying arch-roof tank into inner floating roof tank, point out that the perpendicularity and circularity of tank are the two most important parameters in the modification.

对拱顶罐的状况及拱顶罐改为内浮顶罐存在的问题进行了分析，指出储罐的垂直度和圆度是内浮顶改造的关键。

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。

Through some modification, it can be used for other complex system's intellectualization.

本文的研究成果具有很强的通用性和可移植性，在进行一定针对性改造后，即可应用于其它复杂系统的智能化。

This paper has proposed the following explanation for this topic based on Social Couplings by Maturana, a cognitive biology scholar, organic view by Cooley, a symbolic interactionist , and model of a system in equilibrium by Argyle, a social psychologist:(1) the interaction is an act sequence of "hint-choice";(2) All the teacher and students in mathematics classroom have contributed to the formation and modification of consensual domain;(3) consensual domain in mathematics classroom is not an independent reality;(4) teacher and students' perception to consensual domain in mathematics classroom shall guide their behavior;(5) The coupling standard of consensual domain is not fixed for all observers;(6) the effect of mathematics enculturation should be reinterpreted.

本文整合认知生物学学者Maturana的社会耦合理论、符号互动论学者Cooley的有机观，以及社会心理学者Argyle的均衡系统模型，对共识域之本质与功能提出下列解释作为回应：(1)数学教室内的互动是一「暗示—选择」的行为序列；(2)师生皆对数学教室系统共识域之成型与改变有所贡献；(3)数学教室系统内的共识域并非独立於观察者之客观实在；(4)师生个体对数学教室系统共识域的知觉会指引师生的个体行为；(5)观察者描述数学教室共识域的耦合标准有狭义与广义之分；(6)数学文化传承的必然性应予重新解读。

In the first part, this paper makes use of the uniformity experiment method to choose the best remarkable factor and the optimized technics to affect montmorillonite modification, and analyses the structure of organized montmorillonite, intercalate mechanism and array mode of modifying agent in interlayer.

在第一部分中，本文利用均匀实验法选择出对蒙脱石有机化影响最显著的因素和最佳工艺条件，并分析了有机蒙脱石的结构、插层机理和层间有机链的排列模式。

The chemical modification of clay surface by intercalation was studied systematically, and some disciplinary results were obtained.

论文对插层法中粘土的表面化学处理进行了比较系统的研究，得到了一些规律性的结果，对该体系的制备和研究有较好的指导意义。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。