检索结果-南通市图书馆

Implementation of Some Methods of Shape Design for Variational Inequalities

Journal of Partial Differential Equations 2013年第2期26卷 122-137页

作者： BUTT rizwa. Mathematics Department College of Science King Saud University P. 0. Box 2455Riyadh 11451 Saudi Arabia.

In this paper we present some results concerning the optimal shape design problem governed by the fourth-order variational inequalities. The problem can be considered as a model example for the design of the shapes for elastic-plastic problem. The computations are done by finite element method, and the performance criterion is minimized by the material derivative method. We also discuss the error estimates in the appropriate norm and present some numerical results. An example is used to clearly illustrate the essential elements of shape design problems.

关键词： Sobolev space convexity optimal shape design variational inequalities approxima-tion optimization techniques finite element method material derivative method.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dual Effects of Photo-Darkening and Photo-Bleaching in Ge-Se Films

引用

材料科学与工程（中英文A版） 2015年第1期5卷 78-86页

作者： Istvan Csarnovics Muhamma rizwa.Latif Tyler Nichol wan Kuang Maria Mitkova Miklos Veres Sandor Kokenyesi Department of Experimental Physics University of Debrecen Debrecen 4026 Hungary Department of Electrical and Computer Engineering Boise State University Boise ID 83725-2075 USA Institute of Solid State Physics and Optics Wigner RCP HAS Budapest 1121 Hungary Department of Electrical Engineering University ofDebrecen Debrecen 4026 Hungary.

Photo-induced changes are investigated in thermally evaporated GexSe1-x (x = 0.28, 0.33 and 0.40) films. Object of studies are fresh (as prepared), as well as annealed films. The studies indicated concentration dependence of the occurring effects for the studied compositions. Fast photo-darkening and slow photo-bleaching processes due to laser irradiation were detected in as-prepared films, while only photo-darkening effect was established for annealed samples. The origin of photo-darkening and photo-bleaching is explained based on the structural investigations carried out by Raman spectroscopy.

关键词：薄膜变黑照片光漂白浓度依赖性漂白工艺激光照射结构调查

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：