查询词典 triple curve

Last, this paper introduced some concepts of multiscale geometrical analysis and curvelet transform theory. Because curvelet can showed this feature more 'sparsely' in the function included singular curve or singular side in two dimension space or multi-dimension space. This paper provided a robust digital watermarking technology algorithm based on curvelet transform. watermarking information was embedded into coarse scale coefficients after curvelet transforming, choose right embedding strength. Testing proved it has good invisibility and robustness.

最后，介绍了多尺度几何分析和曲波变换理论的相关概念，鉴于曲波能对二维乃至高维空间中含奇异曲线或者曲面的函数进行更"稀疏"地表示这一特性，本章提出了一种基于Curvelet变换的鲁棒数字图像水印算法，该算法将水印信息嵌入到经曲波变换后的图像的粗尺度系数中，合理选择的嵌入强度，试验表明该算法具有较好的隐蔽性和鲁棒性。

Make a summary of geological bodies surface modeling methods,which including singular value surface compose method, inner bodies grid peel off surface method and the reconstruction method based on the outward curve of geological bodies,in addtion, the heuristic extend surface method.

将地质体表面建模方法总结归纳分为组合单值曲面法、体内剖分剥离表面法和基于外轮廓线的重构法，并提出有启发式的展铺法。

The content included (1) characterizing macropres shapes;(2) obtaining the index to charaterizing soil macropore quantificationally through digitalizing and analysising the photo of soil section;(3) comparing the shapes of macropores among soils, which reasons were discussed;(4) studying the influence of the zonal diversity, soil depth and land utilization on macropore characeristics;(5) estimating the space variability of macropore in the microscale using spore variability index;(6) analysising the connectivity and sinuosity of macropore using preferential flow breakthrough curve;(7) discussing the feasibility of indicating the preferential flow degree using macroporosity and macropore perimeter.

系统划分了大孔隙类型；描述了大孔隙形态；通过对土壤切片图像数字化处理和分析，获得了描述大孔隙特征的两个基本指标：大孔隙度和周长，并对大孔隙进行了定量化地描述；比较了各土类之间大孔隙的形态差异，从土壤发生学的角度对其原因进行了分析；研究了地带性差异、土壤层次和土地利用方式对大孔隙特征的影响；阐明了小尺度范围大孔隙的空间分布特征；结合Br〓标记优先水流穿透曲线分析了大孔隙的连通性和弯曲性，探讨大孔隙形态指标评价大孔隙优先水流作用强弱的可行性。

In this paper, the basic process and the uses of sinusoid curve fit are described, and some specifications and evaluation methods are introduced.

针对一个具体的四参数正弦波拟合软件，使用本文所述指标和方法，进行了软件评价，并给出了有实用价值的评价结果。

Sinusoid curve fit is a very useful method in precise measurement, based on the modeling measurement.

四参数正弦波拟合法是一种在精密测量中广泛使用的数学手段。

It utilizes the sinusoid curve-fit method.The error sources are described,and finally some methods to reduce the uncertainty of calibration results are discussed.

讨论了评价过程的误差来源，以及减小其评价误差的几种对策，同时，给出了评价过程的几个典型仿真实验结果。

With this method, we had several important differences compared to the YDmodel. First, the ratio of daily increment of PDT and the deficit of both water and nitrogen was used to estimate the effect of environment. Second, a nonlinear function was adopted to describe vernalization and thermal effectiveness (instead of three-stage linear function). Third, sinusoidal function was used to describe photoperiod curve cluster for different cultivars.

本模型在YDmodel基础上的改进主要有3点：（1）将每日生理发育时间的增量乘以水肥丰缺因子，改为除以水肥丰缺因子表现水肥对大麦发育的影响，客观体现了大麦在水肥丰缺条件下的发育延迟或提早现象；（2）将三段线性函数改为非线性函数表达春化效应和相对热效应，确立了不同品种相对春化效应和相对热效应的曲线族；（3）将线性函数改为正弦函数表达不同品种光周期效应。

It is bent and twisted into the shape of a skew curve.

它被扭弯成一条扭曲的曲线。

This problem can be avoided by using three components which produce a skew symmetrical path curve.

使用三块能产生反对称形路径曲线的元件，即可避免上述问题。

Through the example of an intersection in Zhuzhou City the paper introduces a channelization method how to make the plane curve of the skew intersection of the urban road, how to set the channelization island and turn lanes so that the capacity at the intersection matches with the capacity of the road sector.

本文通过株洲市的一个交叉口实例，介绍了如何对城市道路斜交路口作平曲线、设导流岛和转弯车道的一种渠化方法，使交叉口的通行能力与路段通行能力相匹

London based fashion photographer Matt Irwin might be is the next big thing in fashion photography.

总部位于伦敦的时装摄影师马特欧文可能会是下一件大事的时装摄影。

Based on IMC system,the response would be better if the model matched more satisfactorily.

由于系统基于内模控制设计，故模型匹配度越高，系统响应越好。