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Firstly, some basic concepts about ECC are introduced;then the scalar multiplication under affine coordinate is discussed, we make a research and analysis of the side channel attack of scalar multiplication used in portable device, give out a new scalar multiplication algorithm which has the advantage of efficiency over other protected algorithm; and an improvement of the standard scalar multiplication algorithm proposed by IEEE1363 is made with the efficiency increasing by about 10%; at last, we deal with the using of complex multiplication in scalar multiplication algorithm, we generalize the methods and deduce a complete computing procedure, with proposing a new method which used several different fast endomorphism ,we give out an approach to boost the scalar multiplication with fast endomorphism.

本文首先介绍了椭圆曲线密码的有关基本概念；其次介绍了椭圆曲线上点的标量乘法在仿射坐标下的计算，对一般便携设备上的椭圆曲线点的标量乘法的边信道攻击做了研究与分析，给出了一种在效率上优于其它可抵抗边信道攻击的标量乘法的新算法，并对IEEE P1363 标准给出的标量乘法做了改进，使得标量乘法的运算效率提高了近10%；最后介绍了利用复乘计算标量乘法的方法，对已有的方法进行总结归纳，得出完整的计算过程，并针对两类超奇异椭圆曲线给出了一种利用多个可快速计算的复乘的标量乘法，得出一类普遍的结果，并给出了进一步用复乘加快标量乘法的思路。

Make use of Fast Fourier Transform to carry out fast Convolution.

详细说明：用快速傅立叶变换做的快速卷积，计算速度快。

During the activity, every is in Beijing east fast of store use annulus pays a success to finish brushstroke to trade can make capital east annulus fast is cosignatory club member, permanent enjoy long-term activity is mixed inside the club favourable policy.

活动期间，凡在京东商城使用环迅支付成功完成一笔交易就可以成为京东环迅联名俱乐部会员，永久享受俱乐部内长期活动和优惠政策。

Aromatic solvent evaporation of volatile is relatively low in calories, fast and dissolubility, while the larger class of toxic solvents; solvents volatile dissolubility good, fast, low cost, but a large cretonne; alcohols in dissolubility, not volatile speed and above two categories, but non-toxic, tasteless, pollution-free.

芳香类溶剂蒸发热量比较低、挥发速度快、溶解性能高，但该类溶剂毒性较大；酯类溶剂溶解性能好、挥发速度快、成本低，但气味比较大；醇类溶剂在溶解性能、挥发速度上都不及以上两类，但是无毒、无味，没有污染。

Common quenching oil is loss of whole system of N32 or N22 uses oil, cool to raise its function, fight aging behavior, shining function and divide into equal parts of high temperature capability to be not joined urge cryogen, clear lotion, brightening agent and antioxidant, formed fast oil, fast and shining oil and high temperature to classification the series quenching oil such as isothermal oi......

普通的淬火油是N32或N22全系统损耗用油，为提高其冷却性能、抗老化性能、光亮性能和高温性能等分别加入催冷剂、清洗剂、光亮剂和抗氧化剂，形成了快速油、快速光亮油和高温。。。。。。

It includes: the selection of detector crystal, the design of geometrical dimension of the detector, the magnetic shield of detector, shield of fast neutron and thermal neutron, distribution of fast neutron in formation, the investigation depth of logging tools and the spacing.

本文第三章介绍了对双晶C/O能谱测井仪研制过程中遇到的主要物理问题进行研究的情况，内容包括：探测器晶体选择、探测器几何尺寸设计、探测器磁屏蔽研究、快中子屏蔽、热中子屏蔽、快中子地层分布、仪器探测深度及源距等。

In view of the traditional daylight lamp law measured the fast survey not precise actual situation, fast method has conducted the certain research to the light electrical measurement.

针对传统的日光灯法测速测量不精确的实际情况，对光电测速法进行了一定的研究。

In leading period,wo can choose four kinds marketing strategies.They are fast depredate,slow depredate ,fast permeate and slow permeate.

在导入期，我们有四种营销策略可以选择：快速掠夺，缓慢掠夺，快速渗透和缓慢渗透。

Thirdly, in order to improve the learning efficiency and stability of feedforward neural network, a fast learning algorithm for neural networks based on CGM-OC approach is presented. Compared with other learning methods such as BP method, Broyden Flecher Goldfarl Shanno method and Powell method in which the derivative is replaced by the difference quotient etc, simulation results show that the proposed method is an efficient and fast one.

第三，为了提高前馈神经网络权值的学习效率及稳定性，提出一种基于正交校正共轭梯度优化方法的神经网络学习算法，通过与其它学习算法（如：BP算法、变尺度法、用差商近似代替导数的Powell法等）的比较，经仿真试验表明，本算法是一种高效、快速的学习算法。

According to the defect of different type in log, histogram balance, fast average filter, fast mediate filter, differentiation sharp, Laplace sharp operator, Sobel sharp operator, Kirsch sharp operator, etc.

针对原木中不同类型的缺陷，本文采用的处理方法有直方图均衡、快速均值滤波、快速中值滤波、微分锐化、拉普拉斯算子锐化、Sobel算子锐化、kirsch算子锐化等算法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。