截线
- serif
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基于复杂截线的NURBS双向蒙皮造型方法
NURBS Bi skinning surface modeling method via complex curves
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因此提出:构造Sweep曲面是否一定需要用活动标架来确定截线的位置?
A problem is arisen : can we describe the Sweep surface to avoid using the moving frame ?
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针对基于传统加工方式的离心泵水力CAD软件设计结果在叶片曲面造型及数控加工方面存在的问题,提出了一种沿轴面截线进行造型的新方案。
A new modeling method of twisted blade is presented in accordance with the shortcomings of traditional method in pump impeller design when modeling and NC manufacturing the surface of blade .
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为了获得较高的效率,所设计的E类负载网络由短截线构成,可以匹配E类负载电阻至标准电阻且抑制高至5阶的谐波。
The proposed Class-E load network is composed of short-stub , which matches the optimum load resistance to the standard resistance and facilitates harmonic suppression of up to 5th order for maximum efficiency .
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PIN二极管开关展宽频带的方法一般是把PIN二极管结合进短截线滤波器,使PIN二极管在反向偏置时作为滤波器的组成部分,以展宽开关在传输状态下的频带;
The usual method to broaden the bandwidth of the PIN diode switch is combining the PIN diodes with stub filters : when under reverse bias , the didoe is part of the filter , the transmission bandwidth is broadened ;
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LM2钢经1050℃快速加热淬火后,基体晶粒尺寸可细化至4.2μm以下,碳化物平均截线长小于0.32μm。
Through rapid heating and quenching the grain size of LM_2 steel may be fined down to 4.2 μ m , and its mean intercept length of carbide particles is < 0.32 μ m.
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为减小造型误差,提出了新LOM方法,即沿过分层板中点造型曲面Z向法截线的切线切割分层板。
A new LOM process , in which the slice sheet is cut along the tangent of normal section line in z-axis direction , is proposed to reduce the theoretical manufacturing error and remaining material quantity .
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根据精度要求,通过将胎顶、胎底轮廓和花纹沟槽侧壁斜截线离散为若干点,并应用加权BSC曲面拟合算法,构造出了型腔侧面参数方程。
After dispersing the spatial profiles and the bevel cut lines of lateral wall into mass datum points based on the required accuracy , parameter equation of the lateral surface was fitted with BSC surface .
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计算出造型曲面的切平面位置、法线与分层平面的夹角、Z向法截线的曲率和曲率半径,实现优化分层。
Adaptive slicing is realized by the calculation of the position of tangent plane of modeling surface , the angle of between the normal section line and the slicing plane , the curvature of normal section line in z-axis direction and radius of curvature .
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三轴椭球法截线的曲率半径
Radius of Curvature of Normal Section on Ellipsoid with Three Axis
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采煤机螺旋滚筒最佳截线距的探讨
Approach to optimal line spacing for cutting picks of mining spiral cylinder
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具有拟平面法截线子流形的某些性质
On some properties of Submanifolds with pointwise planar normal sections
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二次代数曲面平截线不变量完全系统
Invariant Complete System for Flat Section of Quadratic Algebraic Surface
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微带径向短截线基于知识的人工神经网络模型
Knowledge-Based Artificial Neural Network Models for Microstrip Radial Stub
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我学到了带短截线和不带短截线的字体,
I learned about serif and san serif typefaces ,
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关于椭圆抛物面圆形截线的研究
The Study on Circular Transversal of Elliptic Paraboloid
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渐开线齿廓的桃形环面截线逼近
Approximation of involute profile by peach-shaped ring section
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截线问题,二维旅行问题,途遇障碍的旅行问题。
Stick Breaking Problem , Two Dimensional Travel Problem , Travel with a Barrier Problem .
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圆截线平面公式的应用
Application of Formula about Circular Cross-Section
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提出了一种实用的规则矩快速算法&截线段法。
Chapter three puts forward an efficient fast algorithm for regular moment , which is named line segment method .
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在带线环行器中心加并联开路短截线构成双Y结环行器。
Double Y-junction circulator is constructed by applying shunt open-circuited stubs in the center of a stripline simple junction .
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横坐标或纵坐标相等两点的截线与直线交点精度的研究
Study on Precision of Intersection Point between Two Straight Lines through Equal Two Points in Horizontal or Vertical Coordinates
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用一对在贴片两端的短截线来调谐天线的圆极化性能。
A pairs of tuning stubs are used to tune the circular polarization performance . Prototype antennas were made and tested .
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作为应用,本文构造了一类以双圆弧为横向截线的直纹曲面,包括其特殊情形双圆弧锥面与双圆弧柱面。
As an application , the surfaces that consist of straight line are given , where tho cross-sections are bieircular arcs .
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线粒体平均截面周长和平均截面积增加;比表面、嵴膜密度及嵴平均截线长减少。
Mitochondrial average circumference and average area increased , while specific surface , the cristal membrane density and average cristal length decreased .
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级联配置的优点包括没有未端接的短截线,并且配置非常容易扩展。
The advantages of the cascade configuration include the fact that there are no unterminated stubs and the configuration is easily expandable .
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在得到器件的最佳负载阻抗和最佳源阻抗后,就可以有的放矢的进行输入、输出匹配电路设计。根据最佳阻抗的特点本文选用了双短截线匹配电路;
Secondly , choose and design the match circuit of two parallel open-circuited microstrip according to the characteristics of the optimum impedances .
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在此基础上开发了一个用于设计短截线阻抗匹配器的程序,它完全可以取代传统的施密特圆图法。
A program for stub tuner design is developed with which the traditional Smith chart method can be replaced for the design purpose .
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发现钢的韧脆转化温度(50%FATT)与马氏体板条束截线长度呈线性相关;
It has been found that the ductile-brittle transition temperature ( 50 % FATT ) varies linearly with the mean intercept of martensitic packets .
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提出了一种判别曲面凹凸性的新算法,该方法利用微分几何法截线的性质进行判别。
This paper presents a new algorithm for distinguishing concave-convex quality of surface , which uses the property of normal transversal in differential coefficient geometry .