Fundamental Study on Vibration Characteristics of Mechanical Structure at High Frequency Band : 1st Report, Theoretical Analysis

2004 ◽  
Vol 2004.5 (0) ◽  
pp. 201-202
Author(s):  
Tomoyoshi WATAKABE ◽  
Satoshi FUJITA ◽  
Keisuke MINAGAWA ◽  
Rokuro Endo
Keyword(s):  
Theoretical Analysis ◽  
Frequency Band ◽  
High Frequency ◽  
Vibration Characteristics ◽  
High Frequency Band ◽  
Fundamental Study ◽  
Mechanical Structure

116 Study on Earthquake Resistant Characteristics of Mechanical Structure at High Frequency Band

2004 ◽  
Vol 2004 (0) ◽  
pp. _116-1_-_116-5_
Author(s):  
Keisuke Minagawa ◽  
Satoshi Fujita ◽  
Tomoyoshi Watakabe ◽  
Rokuro Endo
Keyword(s):  
Frequency Band ◽  
High Frequency ◽  
High Frequency Band ◽  
Mechanical Structure ◽  
Earthquake Resistant

The SIRIO satellite, 1968––1977: Between scientific engagement and managerial inexperience

2004 ◽  
Vol 34 (2) ◽  
pp. 371-398
Author(s):  
LUCIA ORLANDO
Keyword(s):  
International Economic ◽  
Organizational Structure ◽  
Frequency Band ◽  
High Frequency ◽  
Aerospace Industry ◽  
Space Research ◽  
High Frequency Band ◽  
Political Uncertainty ◽  
The 1960S ◽  
Super High Frequency

ABSTRACT: The story of the first Italian communications satellite, SIRIO, started in 1968, after the failure of the European project for the vector ELDO-PAS. The story up to the launch in 1977 involved the encumbering legacy of the San Marco satellite's success in the 1960s, political uncertainty in Italy, international economic crises of the 1970s, an overtly complex management system, and an inexperienced aerospace industry. Despite these handicaps, SIRIO won the race with its nearest competitor, the European satellite OTS, which had a similar research aim in the super high frequency band. In addition to collecting a large amount of useful data, SIRIO catalyzed the process for developing an improved organizational structure for Italian space research.

Nanoelectromagnetic of the N-doped single wall carbon nanotube in the extremely high frequency band

Nanoscale ◽  
2017 ◽  
Vol 9 (37) ◽  
pp. 14192-14200 ◽  
Author(s):  
B. Aïssa ◽  
M. Nedil ◽  
J. Kroeger ◽  
M. I. Hossain ◽  
K. Mahmoud ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Frequency Band ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
High Electrical Conductivity ◽  
High Frequency Band ◽  
High Demand ◽  
Extremely High Frequency ◽  
Minimal Thickness

Materials offering excellent mechanical flexibility, high electrical conductivity and electromagnetic interference (EMI) attenuation with minimal thickness are in high demand, particularly if they can be easily processed into films.

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