scholarly journals The Sensitivity of Sprite Streamer Inception on the Initial Electron‐Ion Patch

2019 ◽  
Vol 124 (4) ◽  
pp. 3083-3099 ◽  
Author(s):  
C. Köhn ◽  
O. Chanrion ◽  
T. Neubert
Keyword(s):  
Initial Electron

scholarly journals Analysis of Flexural Vibrations of a Piezoelectric Semiconductor Nanoplate Driven by a Time-Harmonic Force

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3926
Author(s):  
Mengen Li ◽  
Qiaoyun Zhang ◽  
Bingbing Wang ◽  
Minghao Zhao
Keyword(s):  
Electron Concentration ◽  
Smart Devices ◽  
Harmonic Force ◽  
Plate Structures ◽  
Piezoelectric Semiconductor ◽  
Initial Electron ◽  
Time Harmonic ◽  
Semiconductor Plate ◽  
Flexural Vibrations ◽  
Piezoelectric Semiconductors

The performance of devices fabricated from piezoelectric semiconductors, such as sensors and actuators in microelectromechanical systems, is superior; furthermore, plate structures are the core components of these smart devices. It is thus important to analyze the electromechanical coupling properties of piezoelectric semiconductor nanoplates. We established a nanoplate model for the piezoelectric semiconductor plate structure by extending the first-order shear deformation theory. The flexural vibrations of nanoplates subjected to a transversely time-harmonic force were investigated. The vibrational modes and natural frequencies were obtained by using the matrix eigenvalue solver in COMSOL Multiphysics 5.3a, and the convergence analysis was carried out to guarantee accurate results. In numerical cases, the tuning effect of the initial electron concentration on mechanics and electric properties is deeply discussed. The numerical results show that the initial electron concentration greatly affects the natural frequency and electromechanical fields of piezoelectric semiconductors, and a high initial electron concentration can reduce the electromechanical fields and the stiffness of piezoelectric semiconductors due to the electron screening effect. We analyzed the flexural vibration of typical piezoelectric semiconductor plate structures, which provide theoretical guidance for the development of new piezotronic devices.

Toward a qualitative understanding of the initial electron transfer site in Dawson-type heteropolyanions

2002 ◽  
Vol 26 (10) ◽  
pp. 1314-1319 ◽  
Author(s):  
Bineta Keita ◽  
Yves Jean ◽  
Bernard Levy ◽  
Louis Nadjo ◽  
Roland Contant
Keyword(s):  
Electron Transfer ◽  
Initial Electron ◽  
Qualitative Understanding

Initial electron-beam results from the DARHT-II linear induction accelerator

2005 ◽  
Vol 33 (2) ◽  
pp. 892-900 ◽  
Author(s):  
C. Ekdahl ◽  
E.O. Abeyta ◽  
H. Bender ◽  
W. Broste ◽  
C. Carlson ◽  
...  
Keyword(s):  
Electron Beam ◽  
Linear Induction Accelerator ◽  
Linear Induction ◽  
Initial Electron ◽  
Induction Accelerator

Protein Dynamics Control the Kinetics of Initial Electron Transfer in Photosynthesis

Science ◽  
2007 ◽  
Vol 316 (5825) ◽  
pp. 747-750 ◽  
Author(s):  
H. Wang ◽  
S. Lin ◽  
J. P. Allen ◽  
J. C. Williams ◽  
S. Blankert ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Protein Dynamics ◽  
Initial Electron ◽  
Kinetics Of
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