初始设计

The uniform design method is used to select initial points. The admissible domain, based on initial points obtained, is partitioned into finite sub-domains. A modified Hooke-Jeeves algorithm is proposed to each sub-domain.

以均匀设计方法选初始点，并依此把允许区域分解为有限多个子域，在每个子域上构造了改进的Hooke-Jeeves优化算法。

This paper validates, validity and adoptability about two kinds of method by contrastively analyzing, so two kinds of method can be used to predict the viscous resistance of SWATH to the beginning of designing.

因此，两种计算方法在SWATH设计初始可以作为其粘性阻力计算和船型优化分析的有效工具。

The inverse method was used in aerofoil of fan blade design, a nonlinear algorithm of velocity distribution optimization, different optimize methods was introduced ,according to the difference of suction and pressure surface, this technique can adjust the thickness of aerofoil available.

使用反方法进行风机叶片的翼型设计，采用了一种非线性优化速度分布的方法，分别针对吸、压力面的初始速度分布采用不同的优化手段，可以有效地调节翼型的厚度。

In design of floating-point division, we can use functional iteration arithmetic or very high radix division arithmetic. In the beginning, we use a look-up table to obtain an accurate initial reciprocal approximation, and reduce the time of delay.

在浮点除法器的设计中，若用函数迭代或高基数算法进行除法运算，计算开始时，通过浮点倒数查找表获得一个较精确的初始除数倒数近似值，可以减少除法的迭代次数，缩短运算的延迟。

Airfoil profiles for wind turbines are mostly chosen from aviatic ones,but design requirements between the two types are different in many aspect.

风力机翼型主要选自航空翼型，但风力机翼型与航空翼型的设计要求存在许多的不同之处，所以，基于初始航空翼型以获得适合风力机的翼型的优化设计工作就显得十分重要。

Based on the structure and work flow of the system, the thesis describes the design of the communication interface between the uncooled...

本论文按照处理机的工作流程，首先讨论FPGA与视频探测器之间的数据通讯模块的设计，接着介绍了图像预处理模块，在预处理模块中，重点介绍了一种改进的二维中值滤波方法和一种特别适于硬件实现的边缘检测算法；在第四章，讨论了用FPGA实现图像获取和模拟视频输出；第五章，讨论了FPGA与DSP之间以及FPGA与弹上机之间的通讯模块的设计，接着重点研究了一种新的Verilog语言的描述风格，并用此写法在上FPGA实现对外围设备的初始化模块；最后，对本文所做的工作进行了总结。

In order to decrease total optical length, a design scheme was employed by selecting mechanically compensated zoom lens with a negative compensator, shortening the focus length of variator and compensator, and increasing the distance between front group and variator. An initial configuration was obtained by solving equations of aberrations. According to aberration theory, the aberrations were corrected by using ZEMAX optical design software.

为缩短筒长，采用负组补偿偏离物像交换变焦结构，缩短变倍补偿系统各组元焦距，增加前固定组和变倍组间距的设计方案，通过解初级像差方程求得初始结构，依据像差理论，利用ZEMAX自动设计软件进行像差校正平衡。

On the basis of summarizing separation method of acetic acid-water system, we studied the azeotropic distillation process of acetic acid-water system, selecting butyl acetate, isobutyl acetate and isopropyl acetate as entrainers. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. Simulation calculations of general distillation and azeotropic distillation were carried out. The influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed. Preferred process operation parameter, which had guiding meaning to practical production of distillation process were obtained. Basic data for the process amplifying design of azeotropic distillation tower were provided. Invest and operation energy consumption of two distillation methods were compared. The elementary technical design of azeotropic distillation tower was carried out on the basis of result of simulation calculation. The type of major auxiliary equipments and inner parts of packed tower were selected.The research results are as follows:(1) Butyl acetate, isobutyl acetate and isopropyl acetate could be selected as entrainer, and separation effect was near.

本文在综述醋酸-水体系分离方法的基础上，以醋酸丁酯、醋酸异丁酯、醋酸异丙酯为挟带剂，对醋酸水溶液进行共沸精馏过程研究，详细研究了填料高度、水与挟带剂的配比、醋酸初始浓度等对共沸精馏分离效果的影响；对醋酸-水体系进行普通精馏和共沸精馏过程模拟计算，讨论了回流比、理论板、进料位置、进料温度和浓度对精馏过程的影响，获得了对醋酸-水体系精馏过程实际生产具有指导意义的较佳的工艺操作参数、共沸精馏塔的工艺设计放大的基础数据，并对两种精馏方法的投资、操作能耗进行了比较；同时在共沸精馏模拟计算的基础上进行了共沸精馏塔的初步工艺设计计算，并对填料塔的主要辅助设备及塔内件进行了初步选型。

Thus, initial gains of FLC are suggested to be designed based on the well-tuned linear control structure for a simple process, and they can be determined based on the VSC theory for a complex process.

对于简单过程，模糊控制的初始增益可以用已调好的线性控制参数来设计；对于复杂过程，可用变结构控制理论来设计。

The system consists of these modules, i.e. project initialization, work part design, functional group database, surface treatment, and rib arrangement.

该系统包括工程初始化、型面处理、减轻筋布置、工作零件设计、功能组件库和总装设计模块。

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。