The graphite transform ratio of 70%, 80% and 90%, which is higher than the normal slice catalyst synthesis system has been achieved by powder catalyst.
通过实验,实现了石墨转化率在70% 、80 % 、90 % 等较高水平的粉末触媒金刚石合成,并就此与片状触媒进行了对比分析;
The analysis of transesterification kinetics shows that the transesterification obeys a second-order reaction kinetics model when the transform ratio is under 95%.
动力学分析表明:酯交换反应在转化率为95%之前,符合二级反应动力学模型。
In chapter two, a new method which combines Fourier transform smoothing with ratio spectra derivative has been developed for analysis of binary or ternary mixtures.
在第二章中,针对两组分和三组分混合体系分析问题提出了傅立叶变换平滑比光谱导数的新方法。
The experiment shows that the embedded zerotree coding method can be used in the case of nonseparable wavelet transform and has good PSNR at low compression ratio.
实验表明嵌入式零材编码方法可以用在非分离型二维子波变换情况,在低比特率时有很好的巅值信噪比PSNR。
The authors present a new algorithm for block-matching motion estimation based on wavelet transform. The simulation shows that this algorithm has better PSNR and performance-to-complexity ratio.
提出了一种基于小波变换域的块匹配运动估计搜索的新算法,模拟实验表明,利用此算法可获得比一般运动块匹配方法更大的峰值信噪比,具有更好的性能复杂度比。
The relation between output correlation spot shape and length width ratio of input correlation image was analyzed quantificationally by using of diffraction theory in the joint transform correlation.
根据联合变换相关理论和光的衍射理论,定量分析了联合变换相关中两相关输入物长宽比与输出相关点形状间的关系。
A system model of image sequence coding based on wavelet transform is established. Then a high data compression ratio is realized and satisfactorily reconstructed image can be obtained.
建立了基于小波变换的运动图像编码系统模型,实现了数据的高效压缩并得到了良好的恢复图像。
To overcome pulse noise influence to image quality, discrete dyadic wavelet transform (DDWT) is used to reduce the noise influence and improve signal to noise ratio (SNR).
为了克服噪声对超声检测成像质量的影响,利用离散二进制小波变换的分解重构算法来降低脉冲噪声的干扰,提高超声图像的信噪比。
To improve the compression ratio, image quality and coding efficiency, an image coding algorithm based on wavelet transform and scalar vector quantization is presented.
针对标量量化压缩比小而向量量化压缩速度慢、图像复原效果不理想等弱点,提出了基于小波变换的分类量化图像编码算法(简称“分类量化编码”)。
When searching the optimal geometric transform parameters, peak signal-noise ratio (PSNR) was selected as the similarity measure between the reference and floating images.
在寻找最优几何变换参数时,采用峰值信噪比(PSNR)作为参考图像和浮动图像的相似性测度。
Based on the shape factor and the effective Poisson ratio an effective method to transform from lateral strain of funnel-like specimen to axial strain of standard specimen is developed.
基于形状因子与等效泊松比的原理,建立了——漏斗型小试样径向应变向轴向应变换算的等效方法。
KLT is used to remove the correlation of spectral redundancy as one-dimensional (1d) linear transform, and SFCVQ coding is applied to enhance compression ratio.
KL变换作为一维线性变换被用于消除一维(1d)谱冗余,且SFCVQ编码被应用于提高压缩比。
The compression ratio of algorithm is more than 1.9. The compression algorithm based on bit plane transform can be realized by parallel computing model.
压缩比达到了1.9以上,与其它超光谱图像压缩算法相当。位平面变换算法具有很好的并行性。
This algorithm based on integer wavelet transform and set partitioning in hierarchical trees for controlling data's compression ratio and reconstruction difference expediently.
针对这一情况,提出了一种基于整数小波变换和多级树集合分割编码压缩新算法。
The actual solutions can be acquired by inverting the Laplace-Hankel transform. The influence of Poisson's ratio, pumping method and time on the surface displacement of multi-layered soil is analyzed.
通过相应的逆变换,得到了该问题的真实解答,并分析了泊松比、抽水形式和时间对饱和层状地基地表位移的影响。
The circular region F-norms in low frequency band of wavelet transform is used as color feature of the image and the energy ratio of high frequency band is used to form texture descriptor.
颜色特征采用整数小波低频系数矩阵中环形区域的F -范数,纹理特征则采用高频部分的能量比值。
The circular region F-norms in low frequency band of wavelet transform is used as color feature of the image and the energy ratio of high frequency band is used to form texture descriptor.
颜色特征采用整数小波低频系数矩阵中环形区域的F -范数,纹理特征则采用高频部分的能量比值。
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