利用开源的OpenCASCADE编译生成必要的库，利用igs接口和step接口，用vs2015+qt开发的读取igs和step的例子；

这是一个供参考的3D模型库，内含DIOM FUSE HDR INDC LCC LED OSC PLCC PQFN PSON QFN QFP RES SHDRR SOD SON SOP TO XTAL 等105个3D模型的STEP文件

《Visual C# 2010 Step by Step》的原书配套实例代码绿色安装文件。。但是看一看压缩包大小，有惊喜哦

注意还要下载两个600多兆的压缩文件才是完整的安装文件。

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Modifying the surface of poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) with toluene during the high-speed spin-coating process of dimethylformamide considerably improves the wettability and morphology of PTAA and results in improvement of the crystallinity and absorption of perovskite film. The hole mobility and ohm contact have also been improved accordingly. Combined with these improved parameters, inverted perovskite solar cells with high efficiency of 19.13% and long-term stability

本文介绍了一种基于 wiener 变步长和梯度谱方差的双语语音稳健声回波消除和声反馈消除方法

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