数字

Put forward digital watermarking method based on wavelet transform and Markov random field.The method that is proposed in the paper brings Markov random field into digital watermarking technique. Uses MRP to model visual impression of image, obtains allowable distortion of every pixel.

3提出了基于小波变换与马尔可夫随机场的数字水印方法本文将马尔可夫随机场引入到数字水印技术中来，利用其对图像视觉效果建模，求取各象素点的允许失真值。

The principle and composition of the passive hydrogen maser is introduced briefly,and an application of digital frequency modulation and digital servo to the passive hydrogen maser for improving the performance of the clock is expounded.The final test and analysis of the system are presented and the data indicate that the stability of the present system is much better than that of the original one.

简单介绍了被动型氢原子钟的组成及原理，阐述了基于数字调频和数字伺服的电子电路在被动型氢原子钟上的应用，并给出了设计的最终测试结果及其分析，数据表明该系统的稳定度比原有系统有很大提高。

According to some data, comparing with other services of Digital TV, EPG is bestowed mostly, and by this reason, almost every master builder regard it as one of the most important services of Digital TV.

据统计，EPG 在已开展的各种数字电视业务中使用率最高，因此所有运营商都非常重视，将它视为数字电视运营的必备业务。

The first number of the sequence is the maximal element of the first M input numbers, the second number is the maximal element of the 2nd,..., M+1-st input numbers and so on.

第一个数字表示输入数据的第1～第 M 个数的最大值，第二个数字表示输入数据的第2～第 M+1个数的最大值，。。。。。。

Considering the randomness of the structural physical parameters and utilizing the random variable's functional moment method and the algebra synthesis method, the mean value and the variance of the mean square value of the structural displacement response under stationary random excitation are computed firstly from the expressions of structural stationary response in frequency domain. And then the expressions of the mean value and the variance of stochastic rigid frames dynamic reliability are educed from the Poisson formula of calculating dynamic reliability.

考虑结构的物理参数具有随机性，从结构随机响应的频域表达式出发，利用求解随机变量数字特征的代数综合法和矩法，导出随机参数刚架结构在平稳随机激励下的位移及速度响应均方值的数字特征，再由动力可靠性的Poisson公式导出结构动力可靠度的计算公式。

Rupert Murdoch memorably described himself as a "digital immigrant" and said the full power of the internet would be apparent only as the younger generation of "digital natives" came of age.

鲁珀特·默多克曾自称为"数字移民"。他还表示，互联网的整体实力只能在较年轻一代的"数字土著"成年后才能得到明显体现。

When we are asked to repeat a string of random digits, we are only able to repeat the last ones, and the number of digits remembered is a function of memory span.

当我们被要求重复一串随机的数字，我们可能只能重复后面几个，数字顺序的背诵是记忆的的架设运用。

This paper discusses the method of three dimensions dynamic simulation on certain air to air missile.

文摘：主要论述了某型空空导弹实现3维实时动态数字仿真的思路和方法，首先建立3维空战模型，然后通过一定的计算方法和编程技巧实现了数字仿真的实时性。

This dissertation introduces the whole scheme、the hardware electro circuit design and software design, the result of experiment on salinometer is preferred at the end of the dissertation. Salinometer is base on SOPC technology, and use digital technology to design circuit: the excitation source for balance bridge is generated by digital method, its shape、amplitude and frequency can be control by digital signal, the standard branch of bridge is composed of three digital-analog-conversion, and uses the method of successive approximation to regulate the balance of bridge.

盐度计以SOPC技术为基础，通过数字化方式设计测量电路：电桥的激励源由数字化方式产生，激励源的波形、幅值和频率等可由数字量控制；平衡电桥标准支路由3个数模转换器组合实现，测量时以逐次逼近的方式调整电桥的平衡度；检测电桥平衡度的高灵敏度数字检流计同样以数字化方式设计，它的增益由程序控制，将电桥的输出电压数字化，以软件判断电桥平衡度。

The surface tension convection in space, for the first time, was observed in high temperature oxide solution by using the particles of the microcrystal of KNbO〓.

借助数字模拟手段，在重力对流作用的情况下，对本实验所用的铂金炉圈中的高温熔液内的速度分布和温度分布进行了数字模拟研究。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。