Multiple Heterostructures of Ni2Si/Si Formed by the Point Contact Reaction

2019 ◽  
Vol 25 (10) ◽  
pp. 41-44
Author(s):  
Hao Ouyang ◽  
Ming-Ting Cheng ◽  
Yung-Ruei Shiu ◽  
Shen-Chuan Lo ◽  
Wen-Wei Wu ◽  
...  
Keyword(s):  
Point Contact ◽  
Contact Reaction

In situ Control of Atomic-Scale Si Layer with Huge Strain in the Nanoheterostructure NiSi/Si/NiSi through Point Contact Reaction

Nano Letters ◽  
2007 ◽  
Vol 7 (8) ◽  
pp. 2389-2394 ◽  
Author(s):  
Kuo-Chang Lu ◽  
Wen-Wei Wu ◽  
Han-Wei Wu ◽  
Carey M. Tanner ◽  
Jane P. Chang ◽  
...  
Keyword(s):  
Point Contact ◽  
Atomic Scale ◽  
Contact Reaction ◽  
In Situ Control

Point-contact spectroscopy of quasi-1D conductors with CDW

1999 ◽  
Vol 09 (PR10) ◽  
pp. Pr10-179-Pr10-181
Author(s):  
A. A. Sinchenko ◽  
Yu. I. Latyshev ◽  
S. G. Zybtsev ◽  
I. G. Gorllova
Keyword(s):  
Point Contact ◽  
Point Contact Spectroscopy

Split beam method for determining mode shapes of cantilever beams under multiple loading conditions

2021 ◽  
pp. 107754632110276
Author(s):  
Jun-Jie Li ◽  
Shuo-Feng Chiu ◽  
Sheng D Chao
Keyword(s):  
Operation Mode ◽  
Point Contact ◽  
Mode Shapes ◽  
Cantilever Beams ◽  
Loading Conditions ◽  
Mechanical Responses ◽  
Relative Contribution ◽  
Resonance Frequencies ◽  
Beam Method ◽  
Multiple Loading

We have developed a general method, dubbed the split beam method, to solve Euler–Bernoulli equations for cantilever beams under multiple loading conditions. This kind of problem is, in general, a difficult inhomogeneous eigenvalue problem. The new idea is to split the original beam into two (or more) effective beams, each of which corresponds to one specific load and bears its own Young’s modulus. The mode shape of the original beam can be obtained by linearly superposing those of the effective beams. We apply the split beam method to simulating mechanical responses of an atomic force microscope probe in the “dynamical” operation mode, under which there are a stabilizing force at the positioner and a point-contact force at the tip. Compared with traditional analytical or numerical methods, the split beam method uses only a few number of basis functions from each effective beam, so a very fast convergence rate is observed in solving both the resonance frequencies and the mode shapes at the same time. Moreover, by examining the superposition coefficients, the split beam method provides a physical insight into the relative contribution of an individual load on the beam.

scholarly journals Improved hybrid A* path planning method for spherical mobile robot based on pendulum

2021 ◽  
Vol 18 (1) ◽  
pp. 172988142199295
Author(s):  
Ziang Zhang ◽  
Yixu Wan ◽  
You Wang ◽  
Xiaoqing Guan ◽  
Wei Ren ◽  
...  
Keyword(s):  
Mobile Robots ◽  
Common Ground ◽  
Kinematic Model ◽  
Point Contact ◽  
Shell Shape ◽  
Spherical Robot ◽  
Trajectory Tracking Control ◽  
Novel Method ◽  
Turning Radius ◽  
Spherical Mobile Robot

This article proposes a modification of hybrid A* method used for navigation of spherical mobile robots with the ability of limited partial lateral movement driven by pendulum. For pendulum-driven spherical robots with nonzero minimal turning radius, our modification helps to find a feasible and achievable path, which can be followed in line with the low time cost. Because of spherical shell shape, the robot is point contact with the ground, showing different kinematic model compared with common ground mobile robots such as differential robot and wheeled car-like robot. Therefore, this article analyzes the kinematic model of spherical robot and proposes a novel method to generate feasible and achievable paths conforming to kinematic constraints, which can be the initial value of future trajectory tracking control and further optimization. A concept of optimal robot’s minimum area for rotation is also proposed to improve search efficiency and ensure the ability of turning to any orientation by moving forward and backward in a finite number of times within limited areas.

Analysis of H2S Treated PbS Point Contact Rectifiers

1956 ◽  
Vol 69 (2) ◽  
pp. 245-248 ◽  
Author(s):  
V G Bhide ◽  
J N Das ◽  
P V Khandekar
Keyword(s):  
Point Contact
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