中值

The main works are as follows:Firstly, in order to produce quincunx down sampling and up sampling which could form directional wavelet transform, the rotated factor matrixes is introduced based on discrete wavelet transform.

在遥感图像去除噪声的过程中提出一种软阈值映射函数，在不同尺度的高频子带图像采用不同的软阈值增益，并采用新的阈值估计算法来确定不同分辨率的高频小波系数的分布来进行图像噪声的有效抑制。

The rack rent, which is the annual rent which could be got for the property if it were to be let is reduced by taking off certain costs allowed by law such as repairs, insurance, etc., leaving a figure called the annual value.

要计算年值，从毛值（即高额租金的房地产值，也就是如果该房地产出租可获得的年度租金）中减去法律允许的某些开支，诸如修缮费和保险费等，便可得到成为年值的数字。

Highly pure crystals can be obtained only in the aqueous system with a pH value higher than 10, which is unusual for the preparation of microporous aluminophosphate materials. While the pH value is in the range from 3. 0 to 6. 0, the crystal of AlPO〓-21 in pure form will prepared.

APO-CJ3生成的适宜pH值范围是10~12，这在微孔磷酸铝的合成中是比较少见的，当pH值处于6.0~10.0时，得到的是APO-CJ3和AlPO〓-21的混相；而pH值在3.0~6.0区域时，得到了AlPO〓-21大单晶。

The significance of rational interpolation of NURBS curve is obvious. But people often adopt non-rational interpolation. The study of rational interpolation is very little.

有理插值在构造NURBS曲线曲面以进行形状表示与设计中有着重要的意义，但是目前大多数都采用相对简单的非有理插值，关于复杂的有理插值的研究不多。

In adjustment calculation of highway control survey, field observation values must be changed onto reference ellipsoid and then onto Gauss projection plane, at last the control network would be adjusted in this plane.

在公路控制测量的平差计算中，须将外业观测值化算为参考椭球面上的观测值，然后再化算为高斯平面上的观测值，并在高斯平面上进行控制网的平差计算。

First, we have proved that the constraint of local constant gradient angles is equivalent to the minimization of total variation. Based on this, a stronger continuity constraint of gradient angle is presented. The interpolation formula (a 3-degree-PDE) derived from the constraint can ensure the continuity of level lines and reduce the width of edges. The contrast invariant of the regularizer of the formula is also proved.

首先证明了局部恒定的梯度角约束插值等价于总变分最小化；在此基础上，提出一个具有更强连续性的梯度角约束，由这个约束条件导出的三阶偏微分方程使插值的图像既可以保证水平线方向的连续性，又减小图像边缘的宽度；最后证明了插值方程中正则项的对比不变性。

In this article, the effect on the surface topography of the same material was analyzed by different processing methods, the value of surface parameter arithmetic mean R, root-mean-square roughness R and gradient root-mean-square value Z were used to appreciate the surface topography, and the data were processed with the software Matlab.

分析不同加工方法对同一种材料表面形貌的影响，采用表面形貌统计参数中的轮廓高度算术平均值R、轮廓高度均方根值R、坡度均方根值Z，对表面形貌进行评价，结果表明，准分子激光加工表面的R、R，和Z，值均比研磨加工表面小。

In the research, 28 characters including energy, informationization measure, fractal dimension, hue, cb, color moment, disease spot area, rotundity, figure factor, and others were extracted, and four approximate features were selected from 28 primordial features. The results indicated that the precision of the three kinds of maize disease recognition was higher than 90%.

研究中提取了墒、相关信息测度、分形维数、H值、Cb值、颜色矩、病斑面积、圆度、形状因子等28个特征向量，利用遗传算法优选出H值、颜色矩、病斑面积、形状因子等4个独立、稳定性好、分类能力强的特征向量，应用费歇尔判别分析法识别病害，准确率达到90%以上。

In orthogonal experiment(L934), We discovered that every combination included varies sources of carbon, sources of nitrogen, pH and salt concentration had great influence on P-solubilizing abilities of 4 PSB strains. Glucose was best source of carbon; all of them could use saccharose and Lx191 could use amylum.

经过对碳源、氮源、pH 值、盐浓度4 水平9 组合的正交试验，发现各种组合对溶磷菌溶磷量都有较大影响，葡萄糖是最好的碳源，氮源、pH 值、盐浓度对溶磷量、pH值、有机酸的影响在不同组合中各菌株表现不同。

Analyze the failure models of rock slope, and then classify the sliding plane, the sliding plane can be divided into self-born sliding plane, appendiculate sliding plane and mixed sliding plane, furtherly summarize the selection method of mechanics parameters to each types. Based on the classification, the author establishes the mechanics model of each sliding plane.

论文主要研究内容和结论如下：(1)阐明了边坡滑动面力学参数取值的研究对象、重点及其研究意义，简要回顾了滑动面分类、结构面强度取值、滑动面试验强度取值和力学参数反算的研究现状，针对目前研究中存在的一些问题，提出了本文的主要研究内容。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。