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针对GIS中数据分析与管理的多图层需要,在深入研究MFC类库框架结构、分析Windows应用程序开发流程的基础上提出了一种基于MFC的多文档多视图框架结构的解决方案,该方案不仅与MFC有着良好的继承、扩展和兼容性,可以快速地实现应用程序开发,而且又很好地实现了GIS中图层管理的多文档多视图特点,满足了多源数据分析与管理的要求,实践表明这是一种可行的技术方案. 相似文献
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Enhanced Depth of Lift-off Pattern Defined with Soft Mold Ultraviolet Nanoimprint by Multi-Layer Masks
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The traditional lift-off process can hardly be carried out in ultraviolet nanoimprint defined patterns due to the poor solubility of the ultraviolet resist. Moreover, the depth of lift-off pattern defined by an ultraviolet nanoimprint is limited by that of the soft mold. In this work, a modified nanoimprint process by a multi-layer mask method is introduced to enhance the depth of the final lift-of[pattern. Pillar photonic crystal is fabricated from the hole pattern defined by NIL to prove the pattern-reversal capability. On its basis, combining the features of overetehing technology and the lateral diffusion phenomenon in the metal depositing process, pillar-shaped photonic crystal stamps with different duty cycles have been fabricated by adjusting the etching time of the lift-off layer. Based on this process, a 50-nm line width metal grating is fabricated from a soft stamp with an aspect ratio as low as 1. 相似文献
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