1) concave envelope theory
最大凹向包络理论
1.
In allusion to the multilevel separated prices, the whole network all-level fare effect of each leg is comprehensively taken into consideration, a series of conceptions, such as recondite price etc, are defined, and the intrinsic concave envelope theory, which adapts to the same quality pr.
针对多级离散价格 ,在综合考虑运行区段各级票价对整个网络收益的影响的基础上 ,定义隐藏价格等概念 ,将原适用于同质产品的最大凹向包络理论拓展于运输网络领域 ,引入的最优票价组合方法 ,为动态定价中各级票价的产生提供理论依据 。
2.
To offer theory proof for the price data of the dynamic pricing, the related conceptions are defined, and the interrelated theories are deduced based on the concave envelope theory.
为解决动态定价中价格数据的理论依据问题,根据最大凹向包络理论,在界定有关概念、推导相关定理的基础上,对网络运输中各旅行区段的价格性质进行拓展研究,探讨各区段给定价格集合与最优价格之间的联系,进行算例分析,为网络运输区段价格的制订提供新的研究途径。
2) envelope theory
包络理论
1.
This paper discusses singularities,inflection points and convexity of FB-spline curves in terms of their control polygons,and gives the necessary and sufficient conditions for testing when FB-spline curves have one or two inflection points,or a cusp,or a loop,or none of the above points by the envelope theory and the topological mapping method.
文章利用包络理论和拓扑映射的方法,讨论了FB-样条曲线的奇拐点和曲线性质,并给出了依据控制多边形判断FB-样条曲线出现1个或2个拐点、1个尖点、1个二重点以及处处为凸的充分必要条件;最后给出了FB-样条曲线的奇点、拐点以及二重点在λ-μ平面上的分布图。
2.
The envelope theory was used to establish the general tooth surface equation of end faced worm wheel pair,and the synthetic curvature of tooth surface has been analyzed and computed.
对一种新型的蜗杆传动———端面蜗轮副分析和建立了数学模型,运用包络理论,建立了端面蜗轮副的通用齿面方程,分析计算了齿面的综合曲率。
3) maximum normal strain theory
最大法向应变理论
4) maximum normal stress theory
最大法向应力理论
5) maximal envelop norm
最大包络准则
6) maximal principles
最大元理论
补充资料：凹模壁厚及凹模垫板尺寸
型腔壁部投影面积 壁 厚， 毫 米
F， 厘米2 h1 h2 h3 h4 h5
<5 15~20 30~40 <=10 15~20 30~40
>5~10 20~25 40~50 10~15 20~25 40~55
>10~50 20~30 50~60 15~20 20~30 55~65
>50~100 30~35 60~75 20~25 30~40 65~70
>100~200 35~40 75~85 25~30 40~50 70~75
>200 >40 >85 30~35 50~60 >80
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条