Experimental Study on Cooling Ceiling Air-conditioning System Covered and Airproofed with the Film Whose Long Wave Transmittance ( LWT) is High 加装长波高透过性薄膜的冷却顶板空调系统的实验研究
Gray Image Watermarking Algorithm Based on LWT and SVD 基于提升小波变换和奇异值分解的灰度图像水印算法
A new texture feature extraction method using Local Walsh Transform ( LWT) is presented. The definition of LWT is given. The statistical properties of LWT coefficients are analyzed. 介绍了一种利用局部沃尔什变换(LWT)提取图像纹理特征的新方法,给出LWT的定义,并分析了LWT系数的统计特性及其各阶矩的纹理鉴别性能。
The water-gas shift experiments showed that the pure CeO2 nanofibers had no catalytic conversion and the lwt% Pt doped CeO2 nanofibers had better catalytic effect which indicated that the Pt dispersed well in the nanofibers with high activity. 水煤气转化实验表明纯CeO2纳米纤维没有催化转化效果,负载1wt%Pt的CeO2纳米结构纤维具有较好的催化转化效果,说明了Pt在Pt/CeO2纳米纤维中均匀分散并具有较高的活性。
In terms of acoustic parameters, with the CNTs content increasing, the density, elastic ratio and loss factor of composite diaphragm were climbing up. When the CNTs content reached to lwt%, however, the upward tendency leveled off. 振膜声学参数方面,随着碳纳米管含量的增加,复合振膜的密度、动态弹性模量、比弹性率以及损耗因子均上升,但是当碳纳米管浓度达到1wt%之后,上升的趋势趋于平缓。
When the total quantity of added metal catalyst was more than lwt%, it was not helpful to improve the hydrogen storage density. 各金属催化剂添加总量超过1wt%时,不利于储氢密度的提高。