This paper deals with the possibility of generation of uniform strength cylindrical or spherical shock wave from an initial uniform plane shock by two dimensional configuration of the wall of the shock tube. It is shown that this problem has a solution, in the frame of Whitham's theorySaill...
Cremona transformation of the plane onto a plane by means of the normsurface V 2 4 (2;2) in P 5 · 来自 ResearchGate 喜欢 0 阅读量: 11 作者:GK Georgiev,ZA Skopets 摘要: The rational surfaces and their offsets are commonly used in modeling and manufacturing. The purpose of this paper...
A transformation from the z-plane to the w-plane is given by w= (2z-1)(z-2) Show that the circle |z|=1 is mapped onto the circle |w|=1. 相关知识点: 试题来源: 解析 Rearrange to get z= (2w-1)(w-2). |z|=1⇒ |w-2|=|2w-1| Substituting u + iv for w and squari...
It was surprising to find the extension to a plane wave firstly claimed by Rubinowicz (see Ref. [4]) was given without any proof. The form of this transformation does not follow as a simple limiting case. This paper shows a direct proof of this extension....
Based on the equations of elasticity theory and hydroacoustics, we calculated the field structures arising when a plane wave is incident on an infinite cylindrical cavity with circular cross section filled by a liquid. The variable pressure component on the cavity axis for longitudinal and shear inc...
aIn fact,H is the transformation from the coordinates O1 to O2, with diferent positions of the camera.The parameters in H can be determined according to three points on a plane H 实际上, H是变革从座标O1对O2,用照相机的不同的位置。参量在H在飞机H上可以是坚定的根据三点 [translate] ...
Common types of transformation Any image in a plane could be altered by using different operations, or transformations. Here are the most common types: Translation is when we slide a figure in any direction. Reflection is when we flip a figure over a line....
摘要: The formation of α1 plates during isothermal aging of a Cu-26.7 wt pct Zn-4.0 wt pct Al alloy at 150 °C to 350 °C follows thermally activated incubation kinetics. Early stage α1plates possess an...关键词:Martensite Material Transaction Habit Plane Near Neighbor Random Fault ...
In stark contrast, it takes Padma Yangdron, born in the 2000s, only one day to return to school in Shanghai, some 4,000 km from Medog, via a combination of bus and plane. These three generations, each navigating distinct methods of traversing the challenging terrain, illustrate the remark...
1.Research About the Conversion of Technology Energy of Spunlaced Nonwovens;水刺非织造布技术能量转换的研究 2.Research and Application of the Automatic Conversion System of the Geological Plane and Section View Drawings of Mines;矿山地质平剖面图自动转换系统研究与应用 3.The Opportunity and Condition of ...