Elastic Rod model of DNA演示动画。

本课件含有12个pdf格式电子图书，主要内容是数学模型理论知识。

清华大学《数学建摸》pdf资料，姜启源主讲，内容完整。 注：预览可能出现乱码。

1、建立数学模型.pdf 2、初等模型.pdf 3、量纲分析法建模.pdf 4、静态优化模型-微分法建模.pdf 5、动态模型-微分方程建模.pdf 6、稳态建模-微分方程稳定性方法建模.pdf 8、离散模型.pdf

This model has the same atomic positions and balls colored by element,but now the sticks convey other information: the backbones are red and blue, and the bases are purple (Adenine), en (Thymine), yellow(Guanine), and cyan (Cytosine).

A standard CPK model, colored by element, against a stone background.The flat base-pairs are stacked in the center of the strand, perpendicular to the view, and the backbone makes a right-handed spiral around the central, vertical axis.

This is a plain CPK model, but with a world map texture-mapped onto the surface.It was riginally a demo for one of my commercial clients. They decided they wanted something a little different, so I put it up here

Delphi 7.0 概述：强大的可视化编程环境、高效的编辑器 、网络通讯方面、数据库方面、丰富的VCL控件库、Model Maker工具、Rave报表设计器、Delphi编译。

复旦大学英文版《投资学》pdf讲义，章节齐全，内容完整，适合大学经济管理专业师生参考使用： CHPT1-introduction CHPT02-risk and risk aversion CHPT03-capital allocation CHPT04-asset diversification CHPT05-CAPM CHPT06-Mutiple factor model CHPT07-APT CHPT8-Market efficiency CHPT9-Index and index fund CHPT10-Investment Styles CHPT11-Performance Evaluation CHPT12-1-Modern portfolio Theory CHPT12-2-general asset pricing model CHPT13- Factor pricing model--CAPM CHPT14- The CAPM ---test CHPT15- the equity market cross-section and time-series properties CHP16-market efficiency-furthur analysis CHPT17- Conditioning information CHPT18-GMM in explicit discount factor models CHPT19- GMM and regression-based tests

麻省理工大学高级化学实验与仪器英文电子教案，共包括8讲内容，讲解详细。