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本文通过试验研究,用玻璃纤维布和碳纤维布分别加固完好钢梁,实测粘结不同纤维复合材料情况下钢梁的荷载-位移曲线和承载力,以评估粘贴CFRP、GFRP是否能有效地改善钢梁的受力性能和对比分析这2种材料的加固效果,为加固工程设计提供有效的参数. 相似文献
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章琳 《东华大学学报(英文版)》2014,31(5):727-730
Compressive sampling matching pursuit (CoSaMP) algorithm integrates the idea of combining algorithm to ensure running speed and provides rigorous error bounds which provide a good theoretical guarantee to convergence. And compressive sensing (CS) can help us ease the pressure of hardware facility from the requirements of the huge amount in information processing. Therefore, a new video coding framework was proposed, which was based on CS and curvelet transform in this paper. Firstly, this new framework uses curvelet transform and CS to the key frame of test sequence, and then gains recovery frame via CoSaMP to achieve data compress. In the classic CoSaMP method, the halting criterion is that the number of iterations is fixed. Therefore, a new stopping rule is discussed to halting the algorithm in this paper to obtain better performance. According to a large number of experimental results, we ran see that this new framework has better performance and lower RMSE. Through the analysis of the experimental data, it is found that the selection of number of measurements and sparsity level has great influence on the new framework. So how to select the optimal parameters to gain better performance deserves worthy of further study. 相似文献
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章琳 《莆田高等专科学校学报》2010,(1):78-81
新建本科院校建设任务繁重,资源紧缺,特别体现在人力、财力、物力三大资源方面。在当前形势下,新建本科院校应明确自身发展定位,改革内部管理体制,积极寻求政策支持,拓展资源渠道,发挥资源潜能,促进资源再生。 相似文献
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本文运用差热分析、X-衍射分析、偏光显微镜和电子显微镜的分析,研究了某些氧化物(SnO_2、Ta_2O_5和PbO)对ZnO-B_2O_3-SiO_2系钝化玻璃在热处理前后性能的影响。认为该系统结晶型钝化玻璃析出的晶相主要是ZnSiO_4、α-Zn_5B_4O_(11)及Zn_3B_2O_6,而且通过热处理可控制和调节玻璃的物化性能。该类玻璃可用作硅元件的钝化材料。 相似文献
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