For the design of a compression function one can either start from scratch and build a function specific for the purpose of hashing or use existing cryptographic building blocks such as block ciphers.
通常设计压缩函数有两种方法：一、利用某些数学工具专为哈希目的而设计一个压缩函数，二、利用现有的密码算法如分组密码来作为压缩函数等。
Because the evolution unit and the best - function unit are parallel while they are working, and most of the genetic operation is completed by hardware, the speed of compression is very high.
由于进化单元和最优函数单元是并行工作的，而且遗传操作的大部分都由硬件完成，故压缩速度很高。
Physical model of working procedure is established for rear absorber of the Xiali car of which the function of throttle valve during rebound and compression processes has been analysed.
通过对夏利轿车后减振器拉、压过程中节流阀的作用的分析，建立了该减振器工作过程的物理模型。
As a useful tool and criterion, the system transfer function of the compression system is introduced.
文章给出了系统传输函数以作为一种有用的工具和准则。
According to a new type of mixed pulse compression signal, this paper discusses the mathematical expression, the way of processing and the expression of the ambiguity function.
提出一种由线性调频与二相码组合而成的新型混合脉冲信号，给出了其数学表达式、处理方法及其模糊函数的表达式。
The Optimization objective function of the biomass Compression molding process had been made.
提出了一种生物质压缩成型过程的优化目标函数。
The principle of fractal image compression is that local self-similarity form a Local Iterated Function System.
图像分形压缩的原理是利用图像中的局部自相似性来构造局部迭代函数系统。
The mixed mode fracture of center cracked Brazilian disk specimen subjected to diametral compression is analysed by weight function method.
用权函数方法对中心裂纹巴西试样的对径加载作了-复合型断裂分析。
Fast simulated annealing is used in calculating the key parameter of fractal interpolation function - vertical scaling factor, thus makes further improvement of data compression speed.
采用快速模拟退火算法来计算分形插值函数的关键参数——纵向比例因子，进一步加快了数据压缩的速度。
A lossless data compression scheme based on neural network is obtained through the structure specific mapping, integral function and BP neural network.
通过构造特别的映射、整函数和BP神经网络，获得一套基于神经网络的无损数据压缩方案。
This paper introduces composition and function of one radar video compression transmission display system, and analyzes with emphasis the compression and decompression arithmetic.
介绍了某雷达视频压缩传输显示系统的组成和功能，并重点对其中的压缩和解压缩算法进行了分析。
According to the characteristic of discontinuous voice signal, this compression algorithm provides the function of voice active detection and improves the compress ratio of voice signal.
同时，根据语音信号不连续的特点，压缩算法具有静音识别功能，进一步提高了语音信号的压缩率。
In the process of the image compression, the use of evolution - function makes this evolvable hardware be able to search for the best prediction function.
在压缩过程中以函数进化的方式，使该进化型硬件能够根据图像的特点来探索最优预测函数。
Shock pressure, internal energy and shock temperature were calculated as function of compression.
冲击压力、内能和冲击温度被计算为压缩度的函数。
In the process of compression the function evolution way makes the hardware can explore the optimized prediction function according to image characteristics.
在压缩过程中以函数进化的方式，使该硬件能够根据图像的特点来探索最优预测函数。
Results showed that we got the function and curves of compression stress relaxation and crept with each group.
结果得出了各组大鼠股骨压缩应力松驰函数、蠕变函数及曲线。
The intercooler cools the refrigerant flowing between the two compression stages as well as provides the reheat function.
中间冷却器冷却在两个压缩级之间流动的制冷 剂并提供再加热功能。
The treatment can relieve the compression of the nerve roots and improve the function of the nerve roots.
有明显的神经根管间节扩大作用，解除了神经根受压。
And an optimum method of producing the azimuth reference function based on polynomial model is brought out, which has improved the azimuth compression effect successfully.
在对模拟得到的原始数据进行成像压缩过程中，本文提出了一种由实际距离拟合生成方位向参考函数的方法，成功的提高方位向压缩效果。
Supporting many input and output formats, detailed parameter settings, a fast and precise cut-edit function, video format conversion, compression, material creation and much more!
多种输入和输出格式支持、详细参数设定、快速而精确的剪切编辑、视频格式转换、压缩、视频材料创建……众多功能不可尽数！
At the present paper the available properties of the linear FM signal are summed up. And the transfer function of the compression network analogous to a matched filter is discussed.
本文总结了线性调频信号的许多有用特性，讨论了近似于匹配滤波器的压缩网络传递函数。
To collect, com- press and save the audio data, one of the important function of VDR, the audio system, which bases on the Vxworks, compose three parts:audio collection, compression and saving.
航行数据记录仪（简称VDR）对加强海上航行安全和船舶事故后的分析有重要的作用，语音信息采集处理是航行数据记录仪的重要功能之一。
In chapter 3, the design of database system for a network school system is introduced, including its task, function, construction feature, model and compression algorithm.
第三章着重介绍本系统的数据库设计，包括数据库任务、功能、结构特色、模型和压缩算法。
The objective function was defined as minimization between strains obtained from finite element method and ones observed from three-axial compression test in laboratory.
以三维有限元模拟的应变值与三轴压缩实验观测应变数据残差平方和最小为参数反演的目标函数。
The tests have proved that the synthesized use of the quick algorithm and the area sampling coding has greatly improved the function of the compression.
试验证明快速算法和区域取样编码的综合运用，大大提高了压缩性能。
Because compression and bending strength of multi-function concrete hollow block is strong, its masonry compression strength, shearing strength and eccentric of out of the plane is much higher.
多功能混凝土空心砌块的抗压、抗折强度较大，使得多功能混凝土空心砌块砌体抗压强度、抗剪强度和平面外偏心承载力较高。
It is helpful to determine the degree of compression and the function of urinary through monitoring the peak indexes of ureteral jets.
通过观测输尿管排尿的峰值指标，有助于判定输尿管受压程度及泌尿功能状态。
From writing pens to railroad cars, compression springs function to fill a variety of project needs, from the everyday to the unique.
从书写笔到火车车厢，压缩弹簧应用于各种各样的项目。
From writing pens to railroad cars, compression springs function to fill a variety of project needs, from the everyday to the unique.
从书写笔到火车车厢，压缩弹簧应用于各种各样的项目。
应用推荐