异构数据源的合成是数据集成的一项重要功能，功能涉及数据冲突解决、数据复制和复杂的数据源交并差运算等。
Heterogeneous data synthesis is an important function of data integration. It involves data conflict resolution, data replication and more complex operation such as join, merge and difference.
通常的经验是，在Android设备中，浮点数会比整型慢两倍，在缺少FPU和JIT的G1上对比有FPU和JIT的Nexus One中确实如此（两种设备间算术运算的绝对速度差大约是10倍）
This is true on a FPU-less, JIT-less G1 and a Nexus One with an FPU and the JIT. (Of course, absolute speed difference between those two devices is about 10x for arithmetic operations.)
讨论布尔运算的并集、交集、差集运算原理在电脑美术设计中的应用。
The theories of Boolean operations union, intersection and subtraction operation in the com puter arts design are discussed.
差分方程隐式部分采用了LU- SGS方法以避免矩阵运算，对化学反应和振动能量源项采用预处理矩阵以解决刚性问题。
The LU-SGS method is used in implicit part of the difference scheme to avoid matrix operations. The preconditioning technique is used for solving stiffness problem.
把对称差应用到事件的运算中，得到一些特别的结论，可以简捷地解答一些概率问题。
By applying symmetric difference to the operation of events, we can draw some special formulas and solve some probabilistic problems simply and directly.
仿真试验表明，该方法能够精确地估计调频非线性剩余频差，具有较高的运算效率，并给出了一个实际试验结果。
Simulations demonstrate that this method provides an accurate estimation of nonlinear residual frequency errors with high computation efficiency. An experimental result was also given.
在两个单环并、交、差图形运算的基础上，提出通过搭接单向桥边的方法，将单环算法直接向多外环、多内环拓展。
The algorithm of two loops (single loop) Boolean operation and the algorithm of the one-way bridge edge are presented.
在同一三向DEXEL模型空间，实现并、交、差布尔运算。
Under the same three directions DEXEL space, Boolean operations such as union, intersection, and subtraction are implemented.
探测电路由全差分运算放大器和仪表放大器组成。
Detecting circuit consists of a fully differential operational amplifier and an instrument amplifier.
压缩时，先对测试向量集进行差分运算，然后采用CPRL码编码差分向量序列。
During compression, it generates difference vectors from test data and then encoding the vectors with CPRL codes.
详细研究几种基于集成运算放大器的差分运算电路。
Several differential operational circuits based on the operational amplifier are researched in detail.
本文在一个不规则网路上离散拉普拉斯运算元的差分格式，不但能满足相容性及极值原理，而且还具有误差极少性质。
The paper gave disperse pattern of laplace function under in - uniform grid, which fulfills acceptance character and error maximization theory. it also has fulfills the character of extreme value.
提出了一种超宽带伪差分运算跨导放大器。
A pseudo differential operational transconductance amplifier is proposed in this paper.
应用三阶差商公式预估新的搜索中心，使运算速度得以进一步提高。
The predicting of the new searching center by the application of a 3-order difference formula speeds up the calculation further.
车牌定位是车牌自动识别系统中关键的第一步，传统的最大梯度差算法按图像像素矩阵的顺序进行扫描和运算，存在运算量大，耗时长的缺点。
The traditional MGD (maximum gradient difference) algorithm based on the order of the image pixels matrix has the shortcomings of the large operation measure and long-time running.
此外，还讨论了特殊运算——布尔差分、布尔微分及布尔积分等的理论计算以及在故障检测中的应用。
In addition, this dissertation 'discusses Boolean differential, integral calculus and their application to detection of digital circuit faults.
提出了一种基于准浮栅技术的折叠差分结构，基于此结构设计，实现了超低压运算放大器。
A new folded differential pair topology based on quasi-floating gate technique is presented, and an ultra-low voltage op amp based on this structure is designed.
电路见图5，这种电路在运算电路中相当有用，比如差分对单端的转换，抑制共模信号。
This circuit is shown in Figure 5 and is useful as a computational amplifier, in making a differential to single-ended conversion or in rejecting a common mode signal.
本程序适用于三角网、边角混合网的平差计算，适应性强，运算也较方便。
The new method, which is both adaptable and convenient, may be used in triangulation adjustment, and triangulateration adjustment as well.
本文使用高阶方程深度偏移方法，并且在计算中采用了一种与差分运算等价的时移法解决了计算中出现的频散和振幅失真问题。
The depth migration with higher-order approximation by time-shift algorithm eliminates the frequency dispersion and amplitude distortion in the calculation process.
知不知道在上半19世纪，他试图发明一种叫做“差分机”的东西，这是一种机械计算器，可以进行多种不同系列的数字运算？
Who attempted to build something called a "Difference Engine" during the first half of the nineteenth-century, a kind of mechanical calculator designed to compute various sets of Numbers?
该算法以相邻像素的二阶差分为基础，自动选择与目标像素点相对应的源像素组进行插值运算。
According to the second-order difference of the consecutive pixels, the source pixel group is automatically selected to compute the corresponding target pixel gray value.
在流线模拟技术与有限差分方法运算时间的比较中，也证实流线模拟技术具有更快的运算速度。
The comparison of the calculation time between the streamline simulation technique and the finite difference method also confirms that streamline simulation technique has better simulation velocity.
设计了一种采用增益增强技术并带有共模反馈的全差分运算放大器。
This paper discusses a fully differential operational amplifier with gain-boosting and CMFB techniques.
通过多面体的三向DEXEL模型与并、交、差布尔运算，生成任意复杂型体的三向DEXEL模型。
A DEXEL-oriented algorithm of polyhedrons was proposed and a three direction DEXEL model was constructed.
本文中，给出了2种压缩测试模式的方法，一种是基于统计的哈夫曼编码，一种是基于差分运算的Golomb编码。
The paper proposes two methods for compressing tested pattern, one based on statistical Huffman code, the other based on differential Golomb code.
本文中，给出了2种压缩测试模式的方法，一种是基于统计的哈夫曼编码，一种是基于差分运算的Golomb编码。
The paper proposes two methods for compressing tested pattern, one based on statistical Huffman code, the other based on differential Golomb code.
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