有效数字

Using this methood, the vector system equation appllicable to simulation can be established, and numeric simulation can also be conveniently conducted.

利用这种方法可以有效地得到适用于仿真的向量系统方程，也便于直接进行数字仿真。

In this paper, a new method of effective digital image watermark is put forward.

品的版权保护。该文提出了一种有效的数字水印算法。

Watermark technique is one of effective means of copyright protection.

数字水印技术是文本版权保护的有效手段之一。

In the digital business card printing and membership card production world, you can make your own workshop of the use of it.

在数字制卡和会员卡制作的世界里，你可以使自己的生产车间得到有效的利用。

Effective January 1, 2004 calculation of WV consumer sales tax has been converted to a calculated figure from the bracket system, and remains at six percent for most goods (food goods are now taxable at five percent).

有效的2004年1月1日计算的西弗吉尼亚州的消费者销售税已被转换为数字计算的支架系统，并保持在百分之六的大部分货物（食品应税货物现在在百分之五）。

The key technologies of which are hash function zero knowledge proof and digital signature.

消息完整性及真实性认证是防止消息被篡改、删除、重放和伪造的一种有效方法，其关键技术为：哈希函数、零知识证明和数字签名。

The watermark can be detected with zero error probability even if the quality of watermarked image is as poor as 26 dB in PSNR after corrupted by additive Gaussian noise.

传统的加密系统在数据传输过程中虽有保护作用，但数据一旦被接收并解密，其保护作用也随着消失。因此只能满足有限的要求[1，2 ] 。作为数字媒体版权保护的有效手段[3 ，4 ] ，数

By analyzing the results of LSNR measurements for samples with different components, and comparing with the media of Aprilis Corporation, we give the suggestion to optimize the material components in the future. In addition, based on the physical mechanism of intra-page crosstalk noise, we proposed the Pixel-Matched Spread Function, and a simplified deconvolution arithmetic to suppress the intra-page crosstalk noise.

另外，在分析数字数据全息存储中页内串扰噪声产生的物理过程的基础上，提出了像元匹配扩散函数的概念，并提出了一个反卷积算法来抑制页内串扰噪声，计算机模拟和实验结果都证明我们提出的PMSF算法可以有效的抑制页内串扰噪声，提高恢复数据页的保真度。

In order to obtain the stem diameter,height,sweep and to accelerate the automatic measurement for trees,a automatic me- asurement system is developed based on digital image processing. The measurement system mainly consists of an image capturer, a viewing angle adjustor, two calibration rods and an adjustable vertical staff and a notebook PC computer.

为了有效地测取样树的胸径、树高、冠幅等参数，促进林木测量自动化，采用数字图像处理技术开发了一套林木自动测量系统，主要包括图像摄取仪、视角调节机构、测量标尺、笔记本电脑等硬件，测量计算软件则包含平视测量、仰视测量、图像处理、参数计算和林木生长情况评价等功能模块。

And a screwy algorithm based on digital image from mono-view is presented. This algorithm needs the four-region sign with the screwy boundary labeled on the surface of columniform targets. Then the length of the intersecting lines of the object's axis and the screwy boundary are gained by means of digital image processing, such as gray histogram balancing, Susan edge detection and Hough transform. Finally, the object's rolling angle is accurately gotten in shooting range.

该方法通过在圆柱形目标表面涂上边界为螺旋线的四区域标志，综合运用直方图均衡化、Susan边缘检测以及Hough变换等数字图像处理技术，从光测图像中得到各个时刻目标中轴线与螺旋线的相交线段的长度，由此可高精度测出空间目标的滚转角，从而有效地解决了靶场试验中空间目标滚转角的测量难题。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。