FORTRAN语言的非数值应用

<正> 1.系统设计 利用高速计算机,进行微分方程公式的推导是数学研究工作的一个新的尝试,它将影响今后微分方程研究工作的现代化。 微分方程程序系统(Differential Equation Program System,简称DEPS)的主要用途是

第四届国际流体力学学术会议(ICFM-IV)简介

<正>由中国力学学会主办的第四届国际流体力学学术会议(The Fourth International Conference on Fluid Mechanics,ICFM-Ⅳ)于2004年7月20日-23日,在大连隆重召开.航天工业总公司科技委主任庄逢甘院士担任大会主席,中科院力学研究所李家春院士担任组委会主席,中科院力学研究所樊菁研究员担任秘书长.美国科学院、工程院、生物医学工程院院士、中科院外籍院士冯元桢先生(Y.C.Fung)、

Matlab与Fortran语言混合编程的接口技术

阐述了在matlab环境下,调用Fortran语言的原理,并通过一实例说明如何实现Matlab,Fortran两种语言的混合编程。

Formation and characterization of tin oxide aerogel derived from sol-gel process based on tetra(n-butoxy)tin(IV)

Transparent and translucent SnO2 aerogels with high specific surface area (>300m(2)/g) have been prepared by sol-gel process using tetra(n-butoxy)tin(IV) as a starting compound, and supercritical drying technique for solvent extraction. Light scattering measurements reveal that the polymeric cluster size distribution in sol system is gradually broadened during sol-gel transition. SEM images show that the aerogels are made up of the cottonlike oxide agglomerates with a large number of Pores. TEM images show that these aerogels seem to be self-similar at different magnifications. Their pore size distribution is pretty wide ranging, from mesopore to macropore especially for that of translucent aerogel. (C) 2004 Elsevier B.V. All rights reserved.