In this paper, the mathematical and physical model was developed based on thermodynamics and solidification theory before the eutectoid transformation of nodular graphite iron occurred. The Local Element Substitute an...In this paper, the mathematical and physical model was developed based on thermodynamics and solidification theory before the eutectoid transformation of nodular graphite iron occurred. The Local Element Substitute and Magnification Method was brought forward and 3-dimensional numerical simulation program based on the model and the new assistant algorithm was developed and used to calculate the samples. Results of calculation have good agreement with experimental data. To display the microstructure formation during solidification of nodular graphite iron, a 2-dimensional numerical simulation program combined with the result of the 3-dimensional numerical simulation of experimental samples was compiled.展开更多
分析了用MapXTreme for java开发WebGIS体系的现状和优缺点,结合WebGIS-T系统中交通流量数据动态显示的特性,提出了Ajax+Servlet+MapXTreme Java的体系结构实现WebGIS-T系统方案,以充分利用Ajax良好的异步传输功能。以杭州市为例,在MapX...分析了用MapXTreme for java开发WebGIS体系的现状和优缺点,结合WebGIS-T系统中交通流量数据动态显示的特性,提出了Ajax+Servlet+MapXTreme Java的体系结构实现WebGIS-T系统方案,以充分利用Ajax良好的异步传输功能。以杭州市为例,在MapXTreme WebGIS操作界面上,通过实时交通流量数据的图形分析和显示,直观显示杭州市道路的交通拥堵状况。展开更多
文摘In this paper, the mathematical and physical model was developed based on thermodynamics and solidification theory before the eutectoid transformation of nodular graphite iron occurred. The Local Element Substitute and Magnification Method was brought forward and 3-dimensional numerical simulation program based on the model and the new assistant algorithm was developed and used to calculate the samples. Results of calculation have good agreement with experimental data. To display the microstructure formation during solidification of nodular graphite iron, a 2-dimensional numerical simulation program combined with the result of the 3-dimensional numerical simulation of experimental samples was compiled.
文摘分析了用MapXTreme for java开发WebGIS体系的现状和优缺点,结合WebGIS-T系统中交通流量数据动态显示的特性,提出了Ajax+Servlet+MapXTreme Java的体系结构实现WebGIS-T系统方案,以充分利用Ajax良好的异步传输功能。以杭州市为例,在MapXTreme WebGIS操作界面上,通过实时交通流量数据的图形分析和显示,直观显示杭州市道路的交通拥堵状况。
