查询词典 boundary curve

In terms of HHT improving, some new algorithms for curve fitting and boundary processing are proposed.

在完善HHT分析方法方面，提出了基于新的曲线拟合及边界处理算法的改进HHT分析方法。

The curve of surface boundary is generated according to these points.

4对于线扫描激光传感器无法测得的边界信息，提出根据三目视觉获得的物体三维边界运用B样条曲线延拓技术使得激光线条中含有准确的边界信息；同时利用B样条曲线插值技术完成在延拓区间内的数据添加，从而提高建模的精度。

Based on testing data,combining well test,recovery and other geologic data,by pressure diagnose,curve analog and boundary analysis,an accurate reservoir parameter can be gained.

以试井资料为基础，结合试油、试采及其它地质资料通过压力诊断、曲线拟合、边界分析等，得到准确的油藏参数。

It puts forward the main drawing methods on curve boundary, namely the parabola parameter pattern calculating methods.

结论证明，此法可以提高成图速度，简化成图手续，促进地籍管理的信息化、自动化。

The dissertation aims at automatic target recognition in images. For that purpose, a variety of algorithms proposed by the dissertation have been used in different stages of image recognition, which deal with image segmentation, boundary feature point extraction, curve feature extraction, object invariant representation and recognition.

本论文的研究目标是实现图象中目标的自动识别，为此，论文围绕图象识别的各阶段，研究了图象分割、轮廓特征点提取、曲线特征提取、物体的不变性表征及识别等。

And the control volume finite difference method based on the boundary fitted curve line coordinate for the coupling model of whole system;(2)introduction of the relative temperature gradient function Sv , which is used to determine the evolution of crystal / melt interface shape, because the shape of the crystal / melt interface during crystal growth is an important factor in determining the crystal quality.

本文采用数值模拟方法，研究了传热对晶体生长的影响，包括以下几个方面：(1)建立了晶体的简化模型，熔体的简化模型和相应的数值计算方法；为了从总体上研究晶体生长的动态特性，首次导出了旋成体曲线座标系的SIMPLEC算法，并成功地应用于晶体生长的整体模拟。

Considering the oxidization of the silicon layer at the vacuum boundary,the measured reflectivity curve is well fitted,and the layer thicknesses are matched with the designed one.

在考虑最上层Si的氧化作用后，对测量曲线进行拟合，得到的反射率曲线和膜层厚度分布分别与测试曲线和设计结果相吻合。

The method submits a practical solution to the data exchange problem between the two kinds of different topological surfaces. The author gives the details of surface regularization, boundary extraction and skeleton curve construction in this chapter.

本章对三角曲面裁剪重构的方法、实现及应用进行了系统研究，并对其中的若干关键问题，例如三角曲面的整体规范化、原始曲面边界提取及母面骨架线构造等，进行了深入探讨。

Based on the analysis of current oscillation region of stable electric fielddomains in I-V curve,it is shown that when the applied bias voltage is changedwithin positive slope regions of I-V curve,the domain boundary between the high-and low-electric field domains does not moved,and the size of electic fielddomains regions is also not altered,while the electric filed strengths are adjusted tokeep the current conservation.

通过对稳态电场畴情况下I-V曲线中电流振荡区域的分析，证明当外加偏压在正微分电导区变动时，超晶格的高低电场畴之间的畴边界不发生移动，畴的大小不变，只是相应的电场强度做些调整以使电流守恒成立。

With the boundary point and the known adjacent relations, an overall marching procedure can go on and the iteration process stops until the intersection curve is self-closed or reaches the border of the composite surface. In the later case, the marching must be repeated from the starting point in the reverse direction until the intersection curve reaches the other border of the composite surface.

由一个交点出发，通过计算跟踪方向和跟踪步长，迭代计算出下一个精确的交点；利用边界点和近曲面点计算方法，根据曲面片的拓扑关系找到交线所经过的下一张曲面片，从而使跟踪过程继续下去，直至形成封闭交线环而停止该交线段的跟踪，或到达复合曲面的边界后由首交点反向跟踪到达复合曲面的另一边界。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。