位运算

The program produces zero error in intermediate computation,and the error of final results can be arbitrarily small.

中间环节的运算误差为零，最后运算结果的误差为任意小的数，解决了一般微机中只能用浮点数计算除数为七位以上整数且误差较大的问题。

The binary number system is widely implemented in the model of DNA arithmetic computation,but the rippling effect caused by carry-propagation on a sum makes it difficult to realize the arithmetic computation in parallel.

在DNA算术运算的模型中普遍应用二进制，受制于进位的影响，难以实现并行运算。

Once. For example, a 32- bit computer can perform arithmetic and manipulations on

响，例如32 位元电脑一次可以进行32 位元的运算，而16 位元的电脑因为每次

In past years, most of the researches for data protection are focused on increasing the operation speed and bit length of cryptography. This can be used in the embedded system to improve for encryption of output data.

过去在对於嵌入式系统资料安全的保护，大部分的研究致力於改善加密演算法运算位元的长度及运算速度，以增进嵌入式系统对外传输资料加密之安全性。

Or and and are boolean, not bitwise.

or以及and是普通的布尔运算，不是逐位元的布尔运算。

In this thesis, we will mainly do research on the novel scheme for Digital image Steganography, Digital Image Secret Transmission in network and the development of the information hiding device for application. The main contributions of this thesis are as following: The novel conversion method for mapping image to complex number is proposed, and the plus, minus, multiply and complex conjugate operation of image are defined based on Positional number systems and complex number system. Following new results have been gotten: 1 The suitable complex number basis to be used to express integers is a big set. 2 Any image can be mapping into a one-to-one point. 3 Lots of image processing problem can be considered based on geometric theory.

在本论文中，研究工作集中在数字图像伪装算法的新模型、图像在网络中的加密传输的新方案和信息伪装设备的研发等三个方面，主要包括：基于位值制记数法和复数系理论，提出利用复数作为基底的数字图像新的表示方法，用复数运算定义了图像和图像间的"加"、"减"、"乘"、"共轭"等运算关系；得到理论结果： 1、能表示任何整数的复数基是很大的一个集合。2、任何一幅图像，都能和复平面上的一个点一一对应。3、可以将图像问题化归为平面几何问题处理。4、复数系下的图像表示适合用于信息伪装。

Traditional integer division algorithm used many subtraction to achieve the operation,the process by spending a lot of clock pulse,but also the results of the operation did not deal with the last one bit.

摘 要：传统整数除法算法采用多次相减的方法来实现运算，相减的过程耗费了大量时钟脉冲，而且对运算结果的最后一位没有进行处理。

Adding the size of a 64-bit IEEE double-precision floating-point number to a double-float-aligned address shall produce a double-float-aligned address.

增加一个 64 位元 IEEE 双精确浮点运算数目的大小到一个双浮点对齐位址必须产生一个双浮点对齐位址。

This is my ISP programming experiment in the preparation of an independent structural description of the four full-adder, through the four mapping of a full adder means four full-adder function, together with a digital display module will be full adder computing the results output to a digital display.

详细说明：这是我在ISP编程实验中独立编写的采用结构化描述的四位全加器，通过四次映射一位全加器的方式实现了四位全加器的功能，并附有数码显示模块，将全加器的运算结果输出到数码管显示。

The improved multiplication algorithm, can be a sign five multiplication, just change a few numbers can be easily extended to more digits multiplication process.

详细说明：采用改进的乘法算法，可进行有符号5位乘法运算，只需更改几个数字便可轻松扩展成更多位数乘法运算程序。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。