效率

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。

That is because the limitation effects of quantum well structure on the electrons and holes, and this structure could improve the composite probability of excitons in the light-emitting layer, thereby increasing brightness and efficiency of OLED.

实验结果表明适当周期数的量子阱结构器件的亮度和电流效率比传统的三层结构器件的要大，主要原因是量子阱结构对电子和空穴的限制作用，这种限制作用提高了电子和空穴在发光层中形成激子和复合的几率，从而提高了发光的亮度和效率。

AS mammal deletion of subdirectories one by one is a diverse and complicated operation, the executive command programmed with PASCAL language has been applicated in the computation center for automatically deleting them with higher effectiveness.

以人工操作逐一删除子目录，费时且效率低，用PASCAL语言编写程序，经编译后生成可执行的命令，用批处理进行调用实现自动删除，可大大提高工作效率。

With the corresponding flow parameters measured through the experiments and the criterion equation mentioned above,the correlation formula of degassing efficiency of flow of gas/liquid two-phase flow through corrugated multicup isoflux gas anchor is obtained through the regression analysis using the least square method and the Gaussian elimination.The influences of the number of arris and concave depth and angle on degassing efficiency are analyzed.

利用量纲分析方法建立了气液两相流体在瓦棱状多杯等流型气锚中流动的准则方程；根据室内实验测得相应参数和准则方程，利用最小二乘法及高斯消去法进行回归分析，得到气液两相流体在瓦棱状多杯等流型气锚中流动时脱气效率的关联公式，并分析了棱数、凹入深度、角度对脱气效率的影响。

This study examines the effects of allocative distortions on returns to density and input demand in domestic airlines during 1989-1997 by using a non-minimum cost function from the cost efficiency point of view. We generalize a globally concave and flexible cost function by using the symmetric generalized McFadden cost function to accommodate allocative distortions for domestic airlines, and estimating the density economies with and without allocative distortions as well as its effect on cost efficiency.

故本研究透过成本效率的观点，使用符合全面凹性更具弹性之对称性一般化影子成本函数来检视国内各航空公司民国78-86年期间之分配扭曲对密度报酬、投入要素需求量（劳动、燃油、固定要素及其他）及成本的影响，以了解各航空公司无效率之所在。

The effect of thermal conductance of the component and the contact layer on output power and efficiency was discussed.

建立了热电发电器件工作的一维模型，应用热力学理论分析了发电器件的输出功率和效率，并重点讨论了元器件热导及热端板、冷端板与元器件间的接触层热导对输出功率和效率的影响。

In view of china's realistic situations, we should draw lessons from the developed countries and promote the congruity of equality and efficiency, thus fulfill china's higher education to develop in harmony through the efforts of the market, the government and the university.

结合现实情况，实现我国高等教育公平与效率共生共长，应善于借鉴发达国家的成功经验，从市场、政府、高校三方面着手努力促进公平与效率的共生共长，从而实现我国高等教育在和谐中发展，在发展中和谐。

This apparent inefficiency is consistent with our understanding that the human brain is conservatively designed.

这种明显的低效率符合我们对人脑的理解，即人脑在效率上比较低。

In the paper,the theory of production frontiers and its non-parametric measurement ap～proaches are used to figure out the input compressing productivity index,Malmquist productivity index based on the input oriented non-parametric production frontiers .The technology efficiency and thedis～tance function and their nonparametric models anr introduced on the conditions of Constant Return to Scale and input strong disposability The Non-pparametric measurement approaces and the decomposition of Malmquist prisuctibity index are put forward

孙巍文采用生产前沿面理论及其非参数方法，对假定产出确定条件下投入压缩的生产率指数基于投入前沿面的Malmquist生产率指数进行了理论与测度方法研究，通过规模收益不变且要素自由，C，S，前沿面条件下的技术效率，距离函数及其非参数模型的分析，本文给出了基于非参数，C，S，投入前沿面的Malmquist生产率指数的非参数测度模型，并从技术变化和资源配置效率变化两个方面进行了分解

Specially our country is during the economical transforming,the appraisal on the technical efficiency of the bank industry not only point out the destination of transforming but also provide the theory reference for policy constitutor.

尤其在我国还处在经济转轨的国家，对商业银行技术效率的评估和对其影响因素的分析不仅为我国商业银行技术效率的改进指明了方向，而且也为政策制定者提供了理论参考。

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。