查询词典 triangular numbers

Based on the analysis of the characteristics of triangular Bezier surface construction and surface/plane intersection, in chapter 4, the author puts forward a construction method of surface/plane intersection curves.

第四章针对三角Bezier曲面的构造特性以及平面与三角曲面求交的特点，提出了一种任意截面曲线的保形构造方法。

Meters high tower, 13 storey, triangular, dorsal surface north south.

塔高20米，分13层，三角形，面南背北。

In this paper, according to the data format of surface in mechanics analysis software and based on computer aided geometric modeling, we present a novel intersection and trimming algorithm based on triangular discrete surface to realize the complex modeling of pneumatic membrane structure.

本文按照力学分析软件中曲面表示的数据格式，辅以计算机辅助几何造型的基础，提出了一种基于三角离散的曲面求交和裁减算法，实现了充气膜结构复杂外形的造型工作。

An approach to generate arc spline tool path of triangular mesh surface was proposed.

提出了三角网格表面数控加工圆弧样条刀轨生成方法。

It is proved that it can generate multi-axis NC machining tool-path for all kinds of triangular mesh surface models accurately and efficiently.

实例证明，该算法刀轨生成精度高，运行速度快，且适用于各种复杂三角网格曲面模型多轴数控加工刀轨的生成。

These two kinds of methods resolved many problems in modeling and make it feasible to build the model of triangular Bezier surface.

由于三角曲面对数据拓扑关系具有较宽的适应性和良好的保形性，使三角曲面特别适合于描述产品外形中自由曲面部分，这也正是逆向工程CAD建模中最难处理的部分。

The boiling behaviors on vertical surface and inside triangular channels were visualized with a digital video camera.

池沸腾时，气泡在加热表面产生、长大并自然脱离；当沸腾在有限空间进行时，气泡的生成和脱离受到限制，气泡会受到壁面的挤压而变形。

Based on these split models, some incontinuous problems during the process of approximating the triangular Bezier surface by a group of plane triangles were presented and solved.

提出了Bezier三角曲面在分割和线性近似过程中的不协调性判别法则和处理方法。

The original medical images are segmented after preprocessing, and the segmented objects are 3D reconstructed as triangular surface.

系统通过读取医学切片图像，在图像预处理、分割、表面重建、平滑与简化后生成解剖真实的几何模型和有限元网格。

According to the generated hierarchical information between three-dimensional data,we can construct the surface triangular grid and execute three-dimensional modelling on the object.

采用模板匹配的方法识别用户手势，采用容差环的方法识别用户输入的物体轮廓，根据生成的三维数据之间的分层信息构建物体表面三角网格，对物体进行三维建模。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。