1) concavity
[英][,kɔn'kævəti] [美][kɑn'kævətɪ]
凹性
1.
With a focus on the two assets,the HJB can be reduced from a PDE to an ODE by using the concavity and the homothetic property of the .
文章对HARA效用函数下,有限期间和无限期间具有成比例交易费用的最优投资消费策略的价值函数解析形式进行了研究,在只考虑两种资产的情况下,利用价值函数的凹性和近似性,通过变量代换,将HJB方程从偏微分方程(PDE)转化常微分方程(ODE),对价值函数进行求解,给出交易区解析解的形式和非交易区要满足的HJB方程。
2.
This article gives the definition of the concavity of functions cont aining parameter and its properties are used to prove some inequalities.
本文给出含参数的函数f(x,t)的凹性定义,并应用它的性质证明一些不等式。
2) dent resistance
抗凹陷性
1.
The mechanical property, forming ability,baked-hardening and dent resistance properties of high strength steel B180H1 were studied by experi- ments compared with those of steel DC04,and theoretical research on predicting the forming limit of steel B180H1 by the NADDRG model was made.
本文通过试验对汽车用高强度钢板B180H1的力学性能、成形性能、烘烤硬化性能和抗凹陷性能进行了全面的研究,并与DC04钢板的各项性能进行了比较。
2.
The effects of baking temperature,baking time and prestrain on the bake hardenability and dent resistance of isotropic sheet steel and BH sheet steel produced by batch annealing were studied.
抗凹陷性测试结果表明,各向同性钢的抗凹陷性低于烘烤硬化钢。
3.
In this paper,mechanical property,forming ability,baked-hardening and dent resistance properties of high strength steel B180H1 are studied by experiments,and compared with those of steel DC04.
本文通过试验对汽车用高强度钢板 B180H1 的力学性能、成形性能、烘烤硬化性能和抗凹陷性能进行了全面的研究,并与 DC04钢板的各项性能进行了比较。
3) dent resistance
抗凹性
1.
The dent resistance theory and evaluation system were studied.
对抗凹性的理论及试验评价体系进行了研究,基于ABAQUS软件对某车用背门进行抗凹性数值模拟分析,得到了背门的加载、卸载位移曲线、载荷参与凹痕曲线,通过局部抗凹力和抗凹稳定性等参数对背门的抗凹性做出评价,对背门设计有理论指导意义。
4) Schur-concavity
Schur凹性
5) fuzzy concavity
模糊凹性
6) convexity and concavity
凸凹性
补充资料：凹陷性水肿
凹陷性水肿
pitting edema
又称“指压性水肿”。是区别于黏液性水肿的另一类水肿，当检查者用手指压迫时，水肿的受压区便发生凹陷。见于心、肝、肾疾病及营养不良等。〔丿〕
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