查询词典 convex

For a finite-security and finite- state financial market with three forms of friction: ask-bid spread, transaction costs and tax, by using the theory of convex analysis and some optimization techniques, a series of necessary and sufficient conditions are established to characterize weak and strong no-arbitrage respectively.

对存在买进卖出价差、交易费和税收三种摩擦和有限个可能的自然状态的金融市场，利用凸分析理论和最优化技术刻划出了强无套利和弱无套利的一系列充要条件，以往许多这方面的结果均是我们的特例。

At the beginning the first part, we simplify the process of the generalization of the inequality (2)[2] The simplification mainly uses the logic analysis and convex function to substitute the original intricately computing.

在第一部分开始，我们简化了文[2]中关于不等式(2)的推广的证明，主要运用了逻辑分析与凸函数这一分析工具，取代了文[2]中繁琐的计算证明。

In this dissertation, we study some fundamental issues on whether there exists arbitrage in the complicated finical market by employing no-arbitrage approach, optimization theory and convex analysis, and establish some ar-birage pricing model.

本文应用金融学的无套利分析方法并结合优化理论和凸分析等数学工具，研究复杂多变的金融市场中是否存在套利等基本问题，建立了一些新的套利定价模型。

Star Diamond Tools also has a special convex blade used in an angle grinder to cut circles.

五星钻石工具也有一个特殊的凸刀片1角向磨光机用于切割圈。

The result indicates that the corner turning distance and the volume of the dead region change with the angle of the convex corner.

结果表明，拐角距离和死区面积随拐角角度的变化而变化。

It was found that the relationship between the nonsmooth appearance of leaf surface and its wettability is very strong, and the shape and distribution of the non-smooth elements are the decisive factors. The surface with regular distribution of convex elements presents large contact angle, strong water repellence, and good self-clearing ability, and that of hairy non-smooth elements takes the nextplace.

试验结果表明，植物表面具有的非光滑形态与表面润湿能力的强弱有极大的关系，非光滑单元体的形状和分布是影响植物表面憎水性强弱的决定性因素；规律分布凸包形非光滑单元体的植物表面的憎水性强，脱附效果好；规律密布表皮毛形非光滑单元体次之。

Detonation wave ; corner effect ; convex corner ; angle ; cast TNT

爆轰波；拐角效应；拐角；角度；注装TNT

The problems of point - line - plane - volume; the facts of square - circle - triangle; the mysteries of central - peripheral - frontal - oblique - concave - convex; the right angle and perpendicular; of scale and position; the interest in post- lintel, wall-slab, vertical-horizontal; the arguments of two-dimensional and three-dimensional space; the extent of a limited field; the meaning of implied extension; the meaning of plan, of section, of spatial expansion - spatial contraction - spatial compression - spatial tension; the direction of regulating lines, of grids; the relationships of figure to ground, or number to proportion, of measurement to scale, of symmetry to asymmetry, of diamond to diagonal; the hidden forces, the ideas of configuration; the static, the dynamic: all these begin to take on the form of a vocabulary.

点-线-面-体的课题；正方形-圆形-三角形的事实；中央-边缘-正对-倾斜-凹入-凸出的奥秘；直角与垂直；尺度与位置；柱-梁、墙-板、竖直-水平的旨趣；两维与三维空间的思辩；局促场所的极限；暗示延伸的含意；平面、剖面、空间扩充-空间收缩-空间挤压-空间张拉的意义；控制线与网格的方向；图与底、数字与比例、尺寸与尺度、对称与非对称、菱形与对角线的关系；暗藏的力量、构型的想法；静态、动态━这一切都将发展成为语汇的形式。

Rolling body is a convex spherical roller bearing to the heart.

滚动体是凸球面滚子的向心滚动轴承。

Small terrestrial isopod with a convex body that can roll up into a ball .

小型陆栖等足动物，身体凸起，分节并可以卷成一个球。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。