scholarly journals A global three-dimensional model analysis of the atmospheric budgets of HCN and CH3CN: Constraints from aircraft and ground measurements

Author(s):  
Qinbin Li ◽  
Daniel J. Jacob ◽  
Robert M. Yantosca ◽  
Colette L. Heald ◽  
Hanwant B. Singh ◽  
...  
2013 ◽  
Vol 694-697 ◽  
pp. 3020-3024
Author(s):  
Hong Bing Wang ◽  
Zhi Rong Li ◽  
Chun Hua Sun

The dynamic performance of the piezoelectric vibrator used in ultrasonic EDM machine in natural frequencies has a great effect on machining precision. Firstly, Through theoretical analysis the dynamic characteristics of the piezoelectric vibrator is obtained. Then the three-dimensional model of the piezoelectric vibrator is constructed by using PRO/E software, and model analysis is carried by using FEM software. Through theoretical analysis and FEM simulation, the appropriate working frequency and mode of the piezoelectric vibrator was found, and the piezoelectric vibrator was fabricated. Experimented results show that the model analysis of frequency is accord with that of FEM.


2015 ◽  
Vol 28 (4) ◽  
pp. 383-385
Author(s):  
Noppavan Nagaviroj ◽  
Michael Figl ◽  
Rudolf Seemann ◽  
Toni Dobsak ◽  
Kurt Schicho

Author(s):  
Faxin Yu ◽  
Hao Luo ◽  
Zheming Lu ◽  
Pinghui Wang

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Akio Morita ◽  
Toshikazu Kimura ◽  
Shigeo Sora ◽  
Kengo Nishimura ◽  
Hisayuki Sugiyama ◽  
...  

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