凸的

The purpose of this book is to provide an exposition of the theory of convex sets and functions in which applications to extremum problems play the central role.

这本书的目的是为了提供各类凸集和凸函数理论的介绍，它们在极值问题的应用中发挥核心作用。

This thesis works for theoretical study on isoperimetric problem and related inequalities by using theory of geometry analysis, way of integral transformations and analysis inequalities.

本学位论文利用几何分析中的凸体理论，积分变换方法和解析不等式理论，研究了凸体和星体的等周问题和相关的不等式问题。

Wei said, do not lose sight of these little children, they will affect the upper and lower "improper "reach, resulting in varying degrees of maxillary or mandibular lordosis lordosis, the future of" big "or" to package Days "is probably the result of these bad habits.

赵玮说，千万不能忽视孩子这些小动作，它们都会牵动上下颌"不正当"前伸，从而导致不同程度的上颌前凸或下颌前凸，日后的"大龅牙"或"地包天"可能就是这些坏习惯造成的。

Based on the article [1], we discuss and prove two sufficient and necessary conditions of multiplicative convex functions.

摘要在文献[1]的基础上，讨论并证明了积性凸函数的两个充分必要条件，同时证明了积性凸函数的另外两个定理。

In the framework of separable locally convex metric spaces, we give scalarization theorems on Benson proper efficiency and study Benson proper efficient solutions of vector optimization problems involving nearly subconvexlike set-valued maps.

中文摘要：本文在可分局部凸距离空间的框架下，给出了Benson真有效点的标量化定理，并研究了几乎次类凸集值映射向量优化问题的Benson真有效解。

Triangulation of a set of scattered points on a plane is obtained by a novel algorithm, which generates the convex hull of it in the process of triangulation according to the property that the boundary of triangulation meshes coincides with the convex hull of the set of points.

对于给定平面散乱点集的三角剖分，根据平面三角剖分网格外边界与点集凸包重合的性质，实现了点集凸包和三角网格的综合生成。

Robust programming is, as stochastic programming, an attempt to capture uncertainty in the data underlying the optimization problem.

半定规划是一个子字段的凸优化的基本变量半矩阵。这是泛化的线性和凸二次规划。

In the soft tissue measurements, the value of soft tissue facial angle and B'-Pos-FH in the first extraction group was less than those in the second extraction group significantly. After treatment all the patients had an increase in S-Ns-Pos angle, soft tissue facial angle, B'-Pos-FH and depth of mentolabial groove. At the same time, soft tissue convexity angle was diminished obviously. But the change was not significant between the two premolar extraction groups.

2在对软组织项目的测量中，治疗前第一前磨牙拔除组的软组织面角、颏沟倾角均小于第二前磨牙拔除组，治疗后2组均出现软组织面凸角减少，颏凸角、软组织面角、颏沟倾角、颏唇沟深度增加；但2组在各项测量项目的变化上无显著组间差别。

［Objective］To compare the clinical results of different bone graft in the posterior route spinal fusion of adolescent idiopathic scoliosis.［Method］A retrospective study was made in 71 case of adolescent idiopathic scoliosis,who were operated on with posterior instrumentation of screw-rod fixation system from 2000 to 2005.All of the patients were divided into three groups,autologous bone graft in 21 cases,allogous bone graft in 23 cases, autologous bone mixed allogous bone graft in 27 cases. The fusion rate, the Cobb's angle loss rate of incidence and pseudoarthrosis were compared among the three groups at 3,9,15,36 months follow-up.

［目的］通过不同植骨在青少年特发性脊柱侧凸后路矫形植骨融合术中的应用比较，探讨其临床应用效果［方法］回顾性分析2000年～2005年行后路钉-棒系统矫形手术的71例青少年特发性脊柱侧凸患者，其中自体骨移植21例，同异体骨移植23例，自体骨混合同种异体骨移植27例，比较随访第3、9、15、36 月的融合率、Cobb's角丢失率及假关节发生率。

Finally,carried out the stopped search procedure in the polyhedrons on the slices.

该算法通过目标函数超平面截线性规划松弛问题的有效约束锥而形成一个单纯形；然后，引入一串平行片来切割该单纯形产生更低维的凸多面体；最后，在片上的这些凸多面体上执行阻止搜寻程序。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。