Results 31 to 40 of about 2,193,515 (195)

Shape-Invariant Demand Functions [PDF]

Review of Economics and Statistics, 2010
Abstract Shape invariance is a property of demand functions that is widely used for parametric and semiparametric modeling and is associated with a commonly employed class of equivalence scale models used for welfare calculations. This paper derives the set of all shape-invariant demand functions and associated preferences.
openaire   +2 more sources

Research progress in functional polymer materials

Cailiao gongcheng, 2021
Functional polymer material is a type of polymer materials with special functions such as catalysis, conductivity, photosensitivity, and biological activity.
HAN Chao-yue, HOU Bing-na, ZHENG Ze-lin, XU Wen-jing, SHEN Hui-ling, LI Zheng-zheng   +5 more
doaj   +1 more source

The microstructural features and strain recovery characteristics of Ti–V–Al shape memory alloy with minor Sc addition

Journal of Materials Research and Technology, 2023
In the present work, minor Sc addition was employed to control the microstructural features, further optimizing the mechanical/functional performances of Ti–V–Al based shape memory alloy.
Xiaoyang Yi, Xinwang Wang, Xinxin Feng, Haizhen Wang, Bin Sun, Xianglong Meng, Zhiyong Gao, Yuehai Song   +7 more
doaj   +1 more source

A flexible geometric model for leaf shape descriptions with high accuracy [PDF]

, 2018
Accurate assessment of canopy structure is crucial in studying plant-environment interactions. The advancement of functional-structural plant models (FSPM), which incorporate the 3D structure of individual plants, increases the need for a method for ...
Coussement, Jonas, De Swaef, Tom, Lootens, Peter, Roldàn-Ruiz, Isabel, Steppe, Kathy   +4 more
core   +2 more sources

Distributed shape derivative via averaged adjoint method and applications [PDF]

, 2015
The structure theorem of Hadamard-Zol\'esio states that the derivative of a shape functional is a distribution on the boundary of the domain depending only on the normal perturbations of a smooth enough boundary.
Laurain, Antoine, Sturm, Kevin
core   +2 more sources

Spectral shape optimization for the Neumann traces of the Dirichlet-Laplacian eigenfunctions [PDF]

, 2018
We consider a spectral optimal design problem involving the Neumann traces of the Dirichlet-Laplacian eigenfunctions on a smooth bounded open subset $\Omega$ of $\R^n$.
Privat, Yannick, Trélat, Emmanuel, Zuazua, Enrique   +2 more
core   +4 more sources

Microstructure and mechanical properties of in-situ hybrid reinforced (TiB+TiC)/Ti composites prepared by laser powder bed fusion

Journal of Materials Research and Technology
To address the problems of insufficient strength and low hardness in pure titanium, a new Ti–B–C powder system was used to prepare in-situ hybrid reinforced (TiB + TiC)/Ti composites by laser powder bed fusion (LPBF) technology.
Lidong Wu, Zhengjiang Gao, Zhenhua Fan, Chenghao Liu, Yunzhong Liu   +4 more
doaj   +1 more source

High strength and ductility in a dual-phase hetero-structured AlCoCrFeNi2.1 eutectic high-entropy alloy by powder metallurgy

Materials Research Letters
We used powder hot extrusion followed by annealing to fabricate a dual-phase AlCoCrFeNi2.1 eutectic high-entropy alloy consisting of both non-recrystallized and recrystallized grains with dense nano-sized precipitates arranged in heterogeneous structures.
Siyuan Peng, Shuai Feng, Zhenfei Jiang, Jie Ren, Shengbiao Zhang, Yanfang Liu, Liang Zhang, Wenyi He, Zhongqiang Liu, Shuai Guan, Zhiyu Xiao, Wen Chen   +11 more
doaj   +1 more source

Modeling of Functional Properties of Porous Shape Memory Alloy

MATEC Web of Conferences, 2015
A model accounting for the microstructure of porous TiNi shape memory alloy samples fabricated by self-propagating high temperature synthesis has been proposed for simulation of their functional-mechanical properties.
Volkov Aleksandr E., Evard Margarita E., Iaparova Elizaveta N.   +2 more
doaj   +1 more source

The mathematics of functional differentiation under conservation constraint

, 2006
The mathematics of K-conserving functional differentiation, with K being the integral of some invertible function of the functional variable, is clarified.
N. Clarke, T. Gál, T. Gál, Tamás Gál
core   +1 more source