提出要求

In this way, the data can be kept the properties as sharing independency security and integrity.

提出了采用关系数据库和文件管理系统及内存数据库实现对不同访问要求的数据的存储和管理，既保证了数据的共享性、独立性、安全性、完整性，又节约了内存，保证系统的响应速度；3。

Becasuse planning problem itself is a very hard problem to be solved and there are many indeterminacy factors.

虽然人们研究规划问题已经有近五十年了，而且也已经提出了各种各样的解决方案，但随着智能规划从理论研究逐渐向应用研究的发展，人们发现经典的规划根本无法满足实际应用的要求，因为规划问题本身就是一个非常难解决的问题，而在实际应用中又具有许多不确定的因素。

The experimental data are used to fit the refractive index change of glass, sliver and polystyrene with wavelength, and the SPR sensor sensitivity under different wavelengths was achieved by application of the fit result in theoretical calculation.

根据得到的实验数据，对玻璃、银和聚苯乙烯的折射率相对波长的变化进行了数据拟合，将拟合的结果用于理论计算，得到不同入射波长下表面等离子体共振传感器的探测灵敏度，提出了不同灵敏度要求下入射波长的优化选取。

This makes the definition even not equivalent to the indistinguishability, which contradicts with what has been widely acknowledged.(3) One-time and multi-message hybrid encryptions is separated, especially the security definitions for them. For the most direct paradigm of hybrid encryption PKE+SKE, the IND-CCA_I security when it is a one-time one and the IND-CCA5 security when it is a multi-message one are proved respectively. For both of them, the necessity of the security requirement for PKE and SKE is discussed.(4) For the KEM+SKE multi-message hybrid paradigm, i.e.

3区分了一次混合加密和多消息混合加密，特别是它们的安全性定义，提出了混合加密的最直接实现范例PKE+SKE，分别证明了它作为一次混合加密时能够达到IND-CCA_I安全性，作为多消息混合加密时能够达到IND-CCA_S安全性，并分别讨论了此时对PKE和SKE的安全性要求的必要性。

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。

Designed the control system based on ATmega 16 according to the requirement of inductively coupled plasma spectrum instrument.

针对电感耦合等离子光谱仪控制要求，设计了以ATm ega 64为核心的控制系统，给出了相应的控制方案和器部件选型，并提出软件的模块化设计。

All these have put forward the demand for digitization of the mutual inductor.

这些都对互感器的数字化提出了要求。

Analyzes the basic features of a special GIS applications and its basic demand, points out the localization of integrated GIS platforms and its inelasticity, and presents a spatial data model based on constructed point set storage to satisfy with the demand of the special GIS application.

分析了一类特殊GIS应用的基本特点和基本功能需求，指出了现有GIS平台的局限性和对该类应用的不适应性，针对该类特殊的GIS应用，创造性地提出了能满足其要求的基于构造点集的全关系型空间数据模型。

Aiming at different requirements for inexplicit transmission positions in V-cincture design described by some teaching materials and manuals, the paper pointed out that the design should be finished according to different mechanical transmission positions.

摘要针对一些教材、手册关于V带传动设计中传动位置要求不明确的问题，提出并分析了应根据机械传动不同的位置进行设计的观点。

Therefore, we suggest that highly desires of cementing quality be needed to tertiary infilling well.

因此，对三次加密井固井质量提出了更高的要求：必须所有小层封固良好，射孔井段隔层水泥胶结指数≥0.8。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。