构造上的
- 与 构造上的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper, we introduce the algorithm of Schoof-Elkies-Atkin to compute the order of elliptic curves over finite fields. We give out a fast algorithm to compute the division polynomial f〓 and a primitive point of order 2〓. This paper also gives an improved algorithm in computing elliptic curve scalar multiplication. Using the method of complex multiplication, we find good elliptic curves for use in cryptosystems, and implemented ElGamal public-key scheme based on elliptic curves. As a co-product, we also realized the algorithm to determine primes using Goldwasser-Kilian's theorem. Lastly, the elliptic curve method of integer factorization is discussed. By making some improvement and through properly selected parameters, we successfully factored an integer of 55 digits, which is the product of two 28-digit primes.
本文介绍了计算有限域上椭圆曲线群的阶的Schoof-Elkies-Atkin算法,在具体处理算法过程中,我们给出了计算除多项式f〓的快速算法和寻找2〓阶本原点的快速算法;标量乘法是有关椭圆曲线算法中的最基本运算,本文对[Koe96]中的椭圆曲线标量乘法作了改进,提高了其运算速度;椭圆曲线的参数的选择直接影向到椭圆曲线密码体的安全性,文中利用复乘方法构造了具有良好密码特性的椭圆曲线,并实现了椭圆曲线上ElGamal公钥体制;文中还给出了利用Goldwasser-Kilian定理和椭圆曲线的复乘方法进行素数的确定判别算法;最后讨论了利用椭圆曲线分解整数的方法并进行了某些改进,在PC机上分解了两个28位素数之积的55位整数。
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What's more the relations between different asset are classified to three groups which are the fundamental-derivative relation、the cross sectional relation and the comprehensive relation, on basis of which the asset pricing anomalies are classified individually to different groups.(2)The price model of the capital asset is constructed trailing the path of the asset value's incrementing and transferring. And then a three–factor model is established which can be utilized by the empirical researches. Concretely, under the capital chain, we conclude the relation between the stocks and the corporate assets is a fundamental-derivative one and the research object is the capital asset under the capital chain.
具体而言,本文在资产链的角度下分析股票和公司资产之间的"基础—衍生"关系,明确了本文的研究对象为资产链下的资本资产;建立了公司资产的价值,将公司资产和其基础资产公司的财产联系了起来,构造了资产链上第一个节点——公司资产的价值;将公司资产和资本资产进行了关联,在考虑公司资产变为资本资产的流动性增值后,建立了资本资产的价格模型;在前文资本资产价格模型的基础上进行了收益分解,基于此引入了具有长中短不同决策周期的三类投资者,在存在无风险资产和不存在无风险资产两种情况下分别建立了可用于实证的三因素模型。
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In this paper,a combined study was curried out for interpreting structure,distribution and tension of fault, wave field effect, heat state and nonelastic medium by explosion seismic Sounding, ZD and 3D long period surface waves of earthquake,magnetotelluric deep sounding,heat flow survey,the mechanism of tectonic movement and deep internal processes in Qinghai-Xizang Plateau.
地壳到地幔速度结构的纵向结构变化,横向分区和走时残差随深度的显著变化,板块边界的地球物理异常场效应,垂直向差异显著的地壳结构与深大断裂体系,低速层的变异、分布、尖灭与缺失,以及近代火山活动地区典型的地热活动特征等,不仅说明构造异常,而且也说明了青藏高原地壳与上地幔在纵向与横向上都不均匀。
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On the basis of summarizing and studying forefathers work of CSCW field, this thesis did the following discussion and rearching aimed at questions about designing, platforming, opening, etc. Cooperating work model is the foundation of CSCW design. In chapter 2, we put forward several common model that reflect group cooperation work on the basis of analysing previous work model. The propose is to provide the support for various cooperative means and activitys. This common model has serveral Functions such as scaleability. Such a general model can meet and guide the development facing various kinds of concrete CSCW system.
本论文在总结和研究前人在CSCW领域工作的基础上,针对CSCW设计、平台、开放性等方面所存在的问题,作了以下的探讨和研究:协同工作模型是CSCW设计和构造的基础,第二章在分析以前协同工作模型的基础上,提出几种反映群体协作工作的一般模型,旨在提供对多种协作方式和协作活动的支持,具有多功能特性,并使模型具有可伸缩性,这样的一般模型可以适应并指导面向各种具体应用的CSCW系统的开发。
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A good many mico-landblock of the early Neoproterozoic-Cambrian volcanic rock that distribute in the Tianshan orogenic belt and on its both sides, and the Carboniferous-Permian volcanic rocks that widely distribute in the Tianshan and adjacent regions are selected for subject investigating in this paper. Renewing the ocean-land format and ocean-land conversion process of Tianshan orogenic belt in the Paleozoic is the masterstroke for this paper. On the basis of detailed field investigation, many subjects, such asregional lithology、geochemistry、structural geology、volcanic sedimentology geology、sotope geochronology and synthesis analysis study of geophysics data, are adopted as instrumentality in the paper, this study lays emphasis on the formation, evolution and dynamics of early Neoproterozoic-Cambrian and Carboniferous-Permian volcanic rock in the Tianshan and its adjacent regions to find out Carboniferous-Permian volcanic rock property, eruptive sequence, time and space distribution characteristics, to resume and reconstruct evolution process of Carboniferous-Permian volcanic rock, and to explore connection of magmatism process and lithosphere stretching action of neopaleozoic ocean-land transformation in the Tianshan region.
本文选择分布于天山及其两侧的诸多微陆块上新元古代—早寒武世火山岩和天山地区广泛发育的石炭纪—早二叠世火山岩为研究对象,以恢复重建天山造山带古生代洋陆格局和洋陆转换过程为主线,在详细的野外工作基础上,综合运用区域岩石学、地球化学、构造地质学、火山沉积学、同位素地质年代学、区域地球物理资料综合分析研究等多学科手段,重点研究天山及其邻区新元代—早寒武世和石炭—二迭纪火山岩系的形成演化及其动力学,查明天山石炭纪火山岩系的性质、喷发序列、时空分布特点,恢复重建其形成演化过程,探索天山地区晚古生代洋陆转换过程中火山岩浆作用与岩石圈拉伸作用的关系。
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Five papers are included in the part, which entitled as semiempirical models of the impulsive phase of the chromospheric flare, a study of the energy deposits in flaring atmosphere with semiempirical models of flares, spectral line asymmetry of solar flare, combined study between SMM HXRBS observation and semiempirical models, and continuum emission of white-light flare.
论文的上篇由5篇文章组成,形成了研究耀斑半经验模型的一个系列,其内容除了构造半经验模型外,着重在半经验模型基础上作扩展性研究,包括探讨耀斑的能量过程,计算谱线轮廓的不对称性,讨论白光耀斑连续发射的大气特征,以及寻求高能观测结果与半经验模型的联系等。
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The main characteristics include: the quiet Sun corona has a rapid response to the flare heating, within 2 second the corona temperature increases nearly one order of magnitude, but later such increase becomes very slowly; the downward velocity at early stage of impulsive phase is too small to be negnected; chromospheric evaporation made by conduction shows some intensely, the maximum evaporated velocity may be as large as 1000 km/s; the chromospheric condensation appears just when the chromospheric evaporation takes place and its place always coincide with that of transition region in the early stage; the maximum of chromospheric condensation occurs also in the early stage of impulsive phase, at which the density in condensation may be larger two order of magnitude than that of surround and the downward velocity may be as large as 100 km/s; after the maximum of chromospheric condensation, its strongth decreases gradually but its width becomes greater with time and have a tendency to transport into deep chromosphere; the front of chromospheric condensation heats atmosphere obviously and the temperature in the chromospheric condensation is higher than the original case; the downware velocity of transition region may be greater than 100 km/s at the early stage; when the evaporated material collide at the top of loop, the densityand the presure there increase rapidly, which result in the formation of a shock wave; and so on.
在改善色球辐射损失和精确分辨过渡区的基础上,通过联立求解连续性方程、动量方程和能量方程,构造了一维磁限制性耀斑环在热沉积作用下的大气动力学模型,获得了耀斑热模型下脉冲相早期较为细致的大气演化理论图象,其主要特征是:耀斑对宁静日冕的加热相当迅速,仅2秒钟日冕温度增加即达一个量级,之后日冕温度增加缓慢;脉冲相早期日冕向下速度很小,几乎可以忽略,热传导驱动色球蒸发,其过程较为激烈,蒸发极大速度可达到1000km/s;色球压缩区与色球蒸发几乎同时形成,且在早期其位置总是与过渡区位置重合;色球压缩极大发生在脉冲相早期,其时密度可高于周围约2个量级,向下速度可超过100km/s;色球压缩极大后,其强度逐渐减弱,但宽度明显增大,且渐渐脱离过渡区往色球传播;压缩区内物质温度要高于原先的大气温度;过渡区下降在脉冲相早期相当迅速,可超过100km/s;当蒸发物质在环顶高速相碰时,环顶的密度、压力迅速增大,且温度也有所增加,导致形成激波,其波面以每秒上百公里的速度自环顶向下传播;在脉冲相前期,日冕软x辐射对色球的加热作用可以忽略;等。
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This chapter, on the basis of analyzing the basic function of disciplinal mechanism of faith-breaking, puts forth the basic principles implemented for establishment of disciplinal mechanism of faith-breaking and puts forth the system designing of disciplinal mechanism of faith-breaking from such aspects as credit early warning, punishment on faith-breaking, encouragement for faith-keeping, credit restoration etc., finally it discusses how to set up the civil, administrative and special legal liabilities for discipline of faith-breaking.
本章在对失信惩戒机制的概念和特征进行解读的基础上,通过对失信惩戒国外经验的分析,提出在征信的基础上建立信用预警、失信处罚、守信激励、严重失信淘汰以及信用修复的失信惩戒法律措施,最后探讨了如何构造失信惩戒的民事、行政、刑事及特殊法律责任。
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The bending problem of simple-supported parallelogrammic plates on Winkler foundation is reduced to two simultaneous Fredholm integral equations of the second kind by applying Green quasifunction method. The Green quasifunction is set up by using the fundamental solution of Poisson equation and the normalized boundary equation.
应用准格林函数方法,即利用方程的基本解和规范化的边界方程构造一个准格林函数,将Winkler地基上简支平行四边形薄板的弯曲问题化为两个耦合的第二类Fredholm积分方程,此积分方程的核表示式在区域的边界上具有奇异性。
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Simple RAM architecture is substituted by the combination of CAM and RAM for forming PID information table, by which the resource is saved and high speed performance is obtained. A "two step" algorithm of Program Clock Reference correction was proposed, which reduces the complexity of hardware design obviously and limites the PCR jitter in a small range. Based on the remuliplexer, thr...
该方案采用 CAM+ RAM组合代替简单的 RAM结构用于构造 PID信息表,在保证速度的基础上,大大节约了资源;提出了&两步法&PCR校正算法,在保证节目时钟基准校正精度的基础上,大大减小了硬件设计的复杂度;基于该再复用器,提出了 MPEG- 2传输流、纯数据、主控机插入等几种实用的数据插入方式,以适应不同的应用环境
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力