在尺寸上

The measurements and simulations are performed in real labs. Before the simulations, the size, structures and layout of labs are determined, specially, including the permittivities of materials in labs.

在实际实验室内进行仿真和测量，仿真前对实验室房间的尺寸、结构、内部布局都进行了认真的测定，特别是对每种物体在仿真频率上的介电常数进行了认真的测定。

By sandwiching a layer of Teflon between the silicon wafer and the ground plane, the novel micromachined shortened stacked patch antenna printed on high index wafer has superior performance over those of traditional design, while its bandwidth has been increased by as much as 8.6%, and its length of patch has been miniaturized to only an eighth wavelength.

本文提出了一种在高介电常数上用微机械工艺制作的短接层叠式贴片天线，该天线在硅片和接地板间夹一层Te flon ，这样天线的性能得到了提升，相对带宽增加到 8.6 %，而几何尺寸仅为波长的 1 8。

Temperature, doping and electric field dependent parameters including energy band, impurity and carrier distribution, mobility and PN junction, etc are established The models which is demanded in unification and accordance in accurance, simulation speed, effective range and application efficiency are also obtained 3、Some unique or key low temperature physic effects, such as carrier freeze-out or trapping effect, mobility enhancement effect, steepened subthreshold effect, small dimension effect and heavy injection effect, as well as their influence to the device cryogenic performance are discussed and analyzed Based on the completely understanding of the physic nature and characteristics in low temperatures operation, the technique methods to overcome or to utilize the effects are also presented 4、By systematic analysis of carrier transportation, the device physic analytical model for advanced polysilicon emitter transistor with better cryogenic performance that can be used to simulate the quantity relations between device terminal characteristics and internal structure, doping distribution as well as operation conditions is presented.

建立了依赖于温度、掺杂和电场因子，并且包括材料和结构的各参量数学物理模型，主要包括能带、掺杂及载流子分布、迁移率和PN结等模型，在计算精度、速度、应用范围和使用效率等方面达到和谐统一。 3、深入研究了低温条件下一些特有的或起关键作用的低温物理效应，主要包括载流子冻析或陷阱效应、迁移率增强效应、亚阈性能改善效应、小尺寸效应和大注入效应等，并分析其对器件低温性能的影响，在对低温器件工作的物理本质和特点有深入认识和了解的基础上，找出利用或克服低温物理效应的技术措施。

Four 8-bit I/O Ports C Three 16-bit Timer/Counters C 256 Bytes Scratch Pad RAM C 8 Interrupt Sources with 4 Priority Levels C Dual Data Pointer Variable Length MOVX for Slow RAM/Peripherals High-speed Architecture C 10 to 40 MHz in Standard Mode 16K/32K Bytes On-Chip ROM Program T80C51RD2 ROMless Versions On-Chip 1024 bytes Expanded RAM C Software Selectable Size (0, 256, 512, 768, 1024 bytes) C 256 Bytes Selected at Reset for AT87C51RB2/RC2 Compatibility Keyboard Interrupt Interface on Port P1 8-bit Clock Prescaler 64K Program and Data Memory Spaces Improved X2 Mode with Independant Selection for CPU and Each Peripheral Programmable Counter Array 5 Channels with: C High-speed Output C Compare/Capture C Pulse Width Modulator C Watchdog Timer Capabilities Asynchronous Port Reset Full Duplex Enhanced UART Dedicated Baud Rate Generator for UART Low EMI Hardware Watchdog Timer (One-time Enabled with Reset-out) Power Control Modes C Idle Mode C Power-down Mode C Power-off Flag Power Supply: 2.7V to 5.5V or 2.7V to 3.6V Temperature Ranges: Commercial (0 to +70C) and Industrial (-40C to +85C) Packages: PDIL40, PLCC44, VQFP44

四8位I / O端口C款三16位定时器/计数器 256字节RAM的便笺簿 8中断源4优先级和C双数据指针MOVX在缓变长内存/外设高速架构为C 10至40 MHz的标准模式16K/32K字节的片上ROM程序T80C51RD2无ROM版本片1024字节扩展RAMC软件可选尺寸（0，256， 512，768，1024字节）C选取在重置为AT87C51RB2/RC2兼容键盘中断接口与独立的选择港口小一8位时钟分频器64K的程序和数据存储器空间的改进X2模式的CPU和256字节每个外设可编程计数器5通道的阵列：C型高速输出C比较/脉宽调制器捕获看门狗定时器复位功能异步端口全双工增强型UART的波特率发生器的UART低EMI硬件看门狗定时器电源控制模式空闲模式C掉电模式C断电旗电源：2.7V至5.5V或2.7V至3.6V温度范围：商业（0到+70 C）和工业（- 40C至+85℃）封装：PDIL40，PLCC44，VQFP44

On the basement of conventional direct fan-beam reconstruction, this paper gives a newly improved algorithm-"fast filtering-backprojection". This method utilizes the symmetrical circle geometry to sample projection data, and reconstructs image on the Polarcoordinate firstly, then translates this reconstructed image onto the cartesian coordinate system with two interpolating operations so that the computer can show the result image on the VGA screen. This algorithm rebates the calculating backprojection greatly, and shortens a few times of reconstructing time than same kinds of means. With the size of image enlarging, the reconstructing time abates with 2 exponent times. In addition, according to the idea of parallel-beam, we rearrange the fan-beams and reconstruct image using parallel-beam method fastly. The rearranging constraint condition is given here.

本文首先在传统的扇束直接重建方法的基础上，提出了一个改进的快速滤波反投影重建算法，它利用旋转采集投影数据的圆周对称的几何关系，先在极坐标系统内进行图象的重建，然后通过两次内插运算再将图象转换到计算机显示方式下的笛卡尔坐标系中去，该方法将以往的直接重建方法中的反投影时所需的运算大大降低，并将重建时间比同类方法缩短了几倍，而且随着重建图象的尺寸的增大，重建时间以2的指数次方倍相对缩短，并获得了较好质量的重建图象；另外，又根据平行束投影重建图象的思想，对扇形射束进行了重排，然后利用平行束重建图象的方法进行扇束的重建，并推导了&扇束重排重建图象&方法的约束条件。

Besides these, the dynamic simulationand structural finite element of the driving drum are also analyzed respectively. Its structure isoptimized to reduce the cost on condition that intensity and stiffness is satisfied and theoptimized structure is reanalyzed.

在虚拟样机模型的基础上分别对传动滚筒进行了运动仿真和结构有限元分析并对滚筒结构尺寸进行了优化，在保证结构满足其刚度强度条件下，尽量使结构轻便，并对优化前后进行分析。

The results show that single structure parameters (width and depth of flow path/passage, and height, and angle of dentations) are local and difficult to represent the anti-clogging ability of emitters. Characteristic structure parameters(minimum size of cross section, hydraulic radius and dentitions spacing) can represent the anti-clogging ability of emitters in a sense. There are anti-clogging critical values under the test. Rated flow Qr and the ratio of diameter of labyrinth passage to diameter of particle η are well cor related to the anti-clogging ability and have anti-clogging critical values too.

结果表明：用单一结构参数(流道宽度 W 、流道深度 D 、齿高度 h 和齿角度θ)表征其抗堵塞性能存在局限性；结构特征参数断面最小尺寸 min(D，W、水力半径 R 和齿间距 l 能较好反映滴头流道横、纵断面的结构特征，在不同程度上表征了流道的抗堵塞性能，且在试验条件下各自均存在抗堵塞临界值；滴头额定流量 Qr 和迷宫滴头径粒比η与抗堵塞性能相关性较好，且存在抗堵塞临界值。

At the same time, the resonant frequencies of four kinds of resonator are calculated by the programs which are made with Matlab software. The effect of resonator geometrical parameters on resonant frequency is theoretically analyzed. In order to carry out the acoustic and aerodynamics performances tests, seven resonators are designed and made, and a specialized engine intake silencer and exhaust silencers test bench was designed. The tests and analysis are performed as well.

在此基础上设计并加工了两类七个共振型进气消声器，研制了发动机进排气消声器性能测试实验台，开发了发动机进排气消声器声学性能测试软件，并在该实验台上测试了所设计的进气消声器静态工况下的传声损失，从实验的角度研究了共振腔的尺寸、形状对其共振频率的影响及其趋势。

A new gauge control method for plate head was developed.For the plates of different steel grade and different dimensions,the plasticity coefficient is calculated, and gauge compensation for plate head is automatically adjusted.Adopting the exponential compensation curve,the gauge deviation is allowable after cropping, and metal yield can be improved.

在此基础上开发了一种新型头部厚度控制的方法，可以在不同钢种和不同规格的轧制条件下，利用轧制过程实际数据，进行轧件塑性系数计算，自动修正头部沉入量；采用指数型补偿曲线，使钢板切头之后成品厚度尺寸达标并且切头质量减少，提高了产品的成材率。

Based on the previous research about the ice-harvester tank, the paper further investigates the properties of tank at ice-filling and ice-melting, notifying the relation between the two rest angles, bringing out the method to optimize the tank"s dimensions, resolving the ice-filling problem according to the connection between the icepack and the tank"s underside, analyzing the ice-melting problem with discharge capacity.

本文在国内外有关片冰机蓄冰槽研究成果的基础上，对蓄冰槽在蓄冰和融冰时的特性做了进一步的研究，揭示了两个安息角的关系，提出了优化蓄冰槽尺寸的方法，根据冰床与蓄冰槽底面接触的情形求解蓄冰问题，用融冰能力分析融冰问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。