分组设计

An important problem in the design of the block cipher is to improve the performance of the resisting differential cryptanalysis.

在分组密码的设计中，提高分组密码的抗差分攻击性能是一个重要的课题。

This paper deriving the theory workinflection point in the static stage characteristics curve of small measurement range lineardimension measurement .by the way of high pressure and back pressure pneumaticmeasure and designed the parameter of the mainly and measure spray head, which are thekey component in the spray head-baffle pneumatic sensor .The different groups for themain-spray head and the measure spray head ,will effect the dynamic and static stagecharacteristic parameter .The author have done contrast experiment and optimizationdesign to test and verify the theory derivation whereby made the rang of show valve ofpneumatic measure system measure range up to 40 μ m, the sensitivity up to 100mv/μ m,resolution up to 0.05 μm, the uncertainly of measure is less than 0.02 μm, satisfaction ofrequirement of groups the carboy hatch thickness size precise measure of soft shims.

对高压背压式气动测量用于小量程线性尺寸测量的静态特性曲线的理论工作拐点进行了推导，对气动测量系统中的喷嘴-挡板型气动传感器中的关键部件——主喷嘴和测量喷嘴的参数进行了理论设计，对主喷嘴和测量喷嘴的不同组合，将影响测量系统静、动态特性指标的喷嘴参数进行了对比实验和优化设计，并通过实验验证了理论推导，从而使气动测量系统量程的示值范围达到40μm，灵敏度达到100mv／μm，分辨率达到0.05μm，测量不确定度小于0.2μm，满足了压缩机缸盖软体垫片厚度尺寸精密测量分组的要求。

This design which is based on the WindowsXp platform, using Graphic editor and text editor of MAX+PLUS II, to design Linear block code through VHDL and Combinational logic. both of these realization are simulated.

本设计基于windows xp平台，采用MAX + Plus II软件中的图形编辑模块和文本编辑模块，运用VHDL对线性分组编码器的编码功能，进行组合逻辑电路设计以及VHDL设计，并对两种设计进行波形仿真。

A new block cipher is designed where the diffusion of matrix multiplication is combined with the confusion of specially designed matrix operation to encrypt information.

设计了一种新的分组密码算法，该算法利用矩阵乘法的扩散作用与专门设计的一种矩阵运算的混乱作用实现对信息的加密。

It shows to design the condensator of the absorbing solar air condition,and analyse the influence of the heat transfer coefficient by the space between the wing,thickness of the wing,diameter of the tube and the grouping number,in order to achieve the optimizational design,It make the design process celerity and briefness,and make it that the influence other parameter brings more evidence.

对吸收式太阳能空调中的冷凝器进行了设计计算，并对其结构如翅片间距、翅片厚度、管直径、分组数等因素对传热系数、管内压降的影响进行了分析，以达到最优化的设计，本文运用Excel强大的图表和函数计算功能，使计算过程快速、简捷，并可以看到每个参数的变化对其他参数的影响，提出了使用于Excel计算冷凝器设计计算方法，避免了复杂的编程过程，为新型环保制冷机的设计优化提供一定的参考。

The research of this paper is began with the analysis the geographic spatial character of the UPTN, and designs the UPTN data mode based on GIS. Then, based on the good exhibiting all kinds of topology of the UPTN, and combined with the technology evaluation standards of the UPTN, this paper builds the UPTN planning mathematic model, and puts forward the quantitative calculation of the UPTN evaluation standards based on GIS; brings forward the arithmetic of the optimal path of the UPTN based on the public traffic network storage structure; designs the bus lines grouping management model, and realizes the contradistinctive evaluation of the UPTN planning projects based on GIS.

论文研究的重点内容是从分析城市公交网络中地理空间实体的特征开始，设计基于GIS的城市公交网络数据模型，在有效表现公交网络拓扑关系的基础上，根据公交线网技术评价指标，建立基于GIS的公交线网规划的数学模型，并给出公交线网评价指标的GIS量化计算方法；提出以公交线网数据存储结构为基础的公交网络最优路径算法；设计公交线路分组管理模型，实现公交线网规划方案对比分析。

Computation of modular exponentiation is very low because of big plain-text group and cipher-text group,so this algorithm is of great significance to design fast algorithm of RSA and select public-key and private-key of RSA.

RSA算法中明文分组和密文分组都较大，方幂模运算消耗大量的运算时间。因此，简化方幂模计算减少计算次数对设计RSA快速算法和选择密钥具有重要的指导意义。

First, it has summarized the two features of BT flow for designing the identification engine later by analyzing and studying the network traffic of a representative P2P system—BitTorrent in the aspects of the flag bit of transport layer, the size of packet, TCP hand-shaking time and the distribution of packet size.

首先本文针对具有典型代表意义的P2P系统—BitTorrent的网络流量进行了传输层标志位、数据流分组尺寸、TCP握手时间和数据流头部分组分布四个方面的分析和研究，总结出了BT流量的两个特征，用于后面识别引擎的设计。

Combinational Logic design which based on the theory of Linear block code is the circuit mapof Linear block code using AND-gate, OR-gate, Flip-flop and so on. VHDL design is the hardware description of the circuit map to make linear block code into realization.

组合逻辑电路设计，是根据线性分组编码理论，利用与非门、触发器等逻辑器件搭建起来的电路原理图；VHDL设计，是将线性分组编码理论通过用VHDL描述，实现其编码功能。

The S box is one of the most important parts of block ciphers.

P置换作为分组密码的另一重要组件，其设计同样是分组密码研究的热点。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。