用集合的近似凸性研究函数的拟凸性。在较弱假设下,获得了拟凸性的一些等价条件。
Quasiconvex functions are studied by applying nearly convexity of sets. Under weaker assumptions, some equivalent conditions for quasiconvexity are derived.
用集合的近似凸性研究函数的预不变凸性,在较弱的假设下获得了预不变凸性的一些等价条件。
Preconvex functions are studied by applying nearly convexity of sets in this paper. Under weaker assumptions, some equivalent conditions for preconvexity are derived.
从几何和凸集的角度,系统地给出了平面闭参数曲线全局凸和局部凸定义,并且证明了这两个定义是等价的。
Based on geometry and convex set methods, this paper gives systemically the definitions of global and local convexity for planar closed parametric curve, and proves the two definitions are equivalent.
在局部凸线性拓扑空间引入弱一致凸和局部弱一致凸的概念,并给出该空间上的几个弱凸性质。
The paper introduces the concept of weak consistent raised and the partial weak consistent raised in the partial facet topological space, and produces several weak raised nature in the space.
阐述了两种不同半径圆弧凸模代替椭圆弧凸模所产生的误差,并比较其大小,从而实现凸模断面的优化设。
The errors are discussed as a result of two kinds of different radius arcs replacing elliptical arc, thereby, realize optimal design for punching cross section.
这项技术不仅能应用于单胸凸的青少年脊柱侧凸患者,还可应用于双主凸的患者。
This technique is applicable not only to a thoracic single curve but also to double major curves in cases of adolescent idiopathic scoliosis.
针对非凸规划,本文引进一简单的惩罚函数将其局部凸化,然后用凸规划的方法求解。
To the nonconvex programming, the article makes it local convexification by introducing a simple penalty function into the objective function, and solves it like solving convex programming.
依据参数曲线凸性的原始几何定义,讨论了参数曲线的局部凸和全局凸性,得到了参数曲线局部凸和全局凸的若干性质。
Based on the original geometrical definition of the convexity for planar parametric curve, the local and global convexity are discussed, and a few properties are obtained.
先天性脊柱后凸14例,脊柱结核后凸畸形5例,外伤后脊柱后凸畸形4例。
There were 14 cases of congenital kyphosis, 5 cases of TB kyphosis and 4 cases of post-traumatic kyphosis.
对求解最优化问题的极大熵方法中的关键函数——K- S函数的一致不变凸性作了讨论,得出“K-S函数是一致不变凸的,则一定是不变凸的”结论。
It was discussed that the consistent invexity of K S function which is the key function used by maxinum entropy method in optimization problems solution.
本文根据水平凸型边坡的破坏机理,建立了一套适用于计算水平凸型边坡稳定性的三维极限平衡方法,并用这一方法对水平凸型边坡的稳定性进行了研究。
According to the failure mechanism of horizontal convex slopes, this paper proposed a three-dimensional limit equilibrium method which is adapted for calculating the stability of the slopes.
本发明提出一种基板上的凸块结构,其包括至少一第一电极、至少一第一凸块以及至少一第二凸块。
The invention provides a bump structure on a substrate, comprising at least a first electrode, at least a first bump and at least a second bump.
以玻璃制件的热成形凸模为例,说明热成形凸模的主要缺陷:凸模裂纹和凸模伤。
Taken the hot-forming punch of a glass part as an example, the main defects of hot- forming punch is explained, including punch crack and punch wound.
端面有间隙、带凸台对接外形是指在标准节上部主弦杆上焊有定位凸台,定位凸台伸人另一标准节主弦杆内,上、下套管之间留有一定间隙配合定位。
End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
锥拟凸向量函数的概念是通常实值函数拟凸性的拓广。 由于拓广途径不一,在许多有关文献中各自提出了自己的锥拟凸向量函数概念。
This paper summarizes several different definitions of cone quasiconvex vector functions proposed in different literatures and discusses the relations among them.
第二凸块配置于基板上,其中第二凸块的高度高于第一凸块的高度。
The second bump is disposed on the substrate, wherein the height of the second bump is higher than the height of the first bump.
在两个凸集之间引入了弱凸模糊映射和强凸模糊映射的概念。
The concepts of weak convex and strong convex fuzzy mapping are introduced between two convex sets.
本发明公开了一种双凸极脉冲式直流电动机,该机由设置着直流绕组的凸极式定子和无电枢绕组的凸极式转子组成。
Double salient pole pulsed DC motor consists of a salient pole stator with DC winding and a salient pole rotor without armature winding.
所述辅撑臂的两侧各往上延伸一斜状凸墙,所述斜状凸墙的前端段侧面各贯设一墙孔,而前段顶面各设置一撞击凸块;
The bilateral slot walls of the shrinking bunch are respectively provided with a wall hole and an inclined salient wall is extended from the both sides of the subsidiary arm brace.
本论文以凸体为研究对象,主要涉及两个方面的内容:平面凸集的凸包为闭集的充分必要条件;
The paper is concerned with two aspects:A necessary and sufficient condition for convex hull of a set in E2 being closed;
本论文以凸体为研究对象,主要涉及两个方面的内容:平面凸集的凸包为闭集的充分必要条件;
The paper is concerned with two aspects:A necessary and sufficient condition for convex hull of a set in E2 being closed;
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