查询词典 intersections

For a general parametric curve/surface, we usually cannot compute its exact implicit form. Even though its exact implicit form can be computed, the curve/surface implicitization involves relatively complicated computation and the degree is higher. Moreover, it may have unexpected components and self-intersections. All these unsatisfied properties limit the applications of the exact implicitization. So finding curve/surface approximate implicitization has become a practical problem. In this paper, we present an algorithm to solve the approximate implicitization of a given parametric curve by using a quadratic algebraic spline curve.

由于精确隐式化过程不一定可以实现，即使可以实现隐式曲线曲面的阶数高计算复杂，并且具有不希望的自交点和奇异分支，从而限制了隐式化的运用，所以寻求参数曲线曲面的近似隐式化问题成为很实际又重要的问题，提出利用二次代数样条曲线来实现一般平面参数曲线近似隐式化的一种算法。

Furthermore, loss and crosstalk characteristics of bend intersections formed by sine bend, cosine bend and arc bend are compared.

在此基础上，对由正弦弯曲、余弦弯曲以及圆弧弯曲三种弯曲波导构成的SOI交叉波导的损耗及串扰特性进行了分析比较。

The model can provide a reference for improving signal planing, design and channelization of intersections, and analysis of transportation benefit.

该模型可为信号交叉口的信号配时的优化、交叉口设计与渠化、运输成本分析等提供参考。

To solve the problem, the intersections channelization and signal setting were discussed, the designing principle and procedure were put forward with an example.

在阐述了中小城市交通特点的基础上，就这类城市平面交叉口在渠化设计和信号灯配时等方面所存在的问题进行了分析。

Based on the traffic design, analysis is made of problems in road design, including the form of cross section, the width of lanes, design vehicle speed, bus stops, and markings and channelization at intersections.

本文从交通设计的视角分析研究道路设计的若干问题，包括：道路横断面形式、车道宽度、设计车速、公交停靠站以及交叉口的标线与渠化问题。

Based on reconstruction example of Fushan Longjiang Town 325 national highway for which at-grade channelizing design is used for the intersections, described hereby are the applicability of channelized intersection, the features of channelized intersection such as the great carrying ability, less cost etc which would raise greatly the safety of vehicles and pedestrians, as well as the key points for the design of channelizing reconstruction of at-grade intersection.

1工程概况佛山市顺德区龙江镇325国道交叉口位于龙江镇的西南部，由325国道、龙洲路、沙龙路3条干道交汇而成，属X型交叉口。3条道路的红线宽度均为70m，横断面布置，325国道为双向八车道，龙洲路、沙龙路为双向六车道。该交叉口原来是环形交叉口形式，在交叉口中央设置了一个直径60m的中心环岛，驶入交叉口的车辆一律绕环岛作逆时针单向行驶。

On the future scope and practical perspective to the interpretation of each : she is part of West Second Avenue line east, south Taopu Road, Woo Road north, east, Link, Chilian Mountain Road, Woo intersections.

站在未来的广度，以实际的眼光来逐一诠释：她地处环西线二大道以东，桃浦路以南，金鼎路以北，外环线以东，祁连山路、金鼎路口。

Moreover, in the parameter plane determined by some two parameters,we discuss codimension two bifurcations caused by the intersections of two bifurcating curves.

同时，在两个参数确定的半参数平面上，我们通过分岔(来源：46e646ABC论文网www.abclunwen.com)曲线的交点讨论了余维2分岔的存在性，即等变Pitchfork-Hopf分岔和Hopf-Hopf分岔。

Moreover,the curve and surface subdivision occurs in 3D object rendering, surface approximation,wireframe displaying, finite element analysis and computing surface intersections,and so on.

随之而来的是对这些自由曲面的几何处理问题——曲线、曲面离散及裁剪等。

Sort-and-Incremental Algorithm Step 4: Intersections of adjacent h-plane pairs in stack form half a convex polygon.

相邻半平面的交点组成相邻半平面的交点组成半个凸多边形。半个凸多边形。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。