scholarly journals Three-Component Force Measurements for Scramjet Engines 1) Engine Drag from Mach 4 to Mach 8 Flight Conditions

2003 ◽  
Vol 51 (592) ◽  
pp. 244-251 ◽  
Author(s):  
Yuichi Tarukawa ◽  
Tohru Mitani ◽  
Tetsuo Hiraiwa ◽  
Goro Masuya
Keyword(s):  
Force Measurements ◽  
Scramjet Engines ◽  
Component Force

scholarly journals Three-Component Force Measurements for Scramjet Engines 2) Effects of External Flow and Boundary Layer Ingestion

2003 ◽  
Vol 51 (592) ◽  
pp. 252-259 ◽  
Author(s):  
Tohru Mitani ◽  
Yuichi Tarukawa ◽  
Muneo Izumikawa ◽  
Syuichi Watanabe ◽  
Takashi Shimura
Keyword(s):  
Boundary Layer ◽  
External Flow ◽  
Force Measurements ◽  
Scramjet Engines ◽  
Component Force

Force Measurements during Cross-Country Skiing

1987 ◽  
Vol 3 (4) ◽  
pp. 370-381 ◽  
Author(s):  
Paavo V. Komi
Keyword(s):  
Functional Significance ◽  
Force Platform ◽  
Ground Reaction Forces ◽  
Force Measurements ◽  
Experimental Conditions ◽  
Reaction Forces ◽  
Cross Country Skiing ◽  
Cross Country ◽  
Platform System ◽  
Component Force

To understand cross-country (X-C) siding it is important to record and identity forces of skis and poles separately and together. They both contribute to the forward progression, but their functional significance may be more complex than that of the ground reaction forces in running and walking. This report presents two methods to record forces on skis and poles during normal X-C skiing. A long force-platform system with four rows of 6-m long plates is placed under the snow track for recording of Fz and Fy forces of each ski and pole separately. This system is suitable especially for the study of diagonal technique under more strict experimental conditions. The second system consists of small lightweight Fz and Fy component force plates which are installed under the boot and binding. These plates can be easily changed from one ski to another, and telemetric recording allows free skiing over long distances and with different skiing techniques, including skating. The presentation emphasizes the integrated use of either system together with simultaneous cinematographic and electromyographic recordings.

scholarly journals Three-Component Force Measurements on a Large Scramjet in a Shock Tunnel

2004 ◽  
Vol 41 (3) ◽  
pp. 416-425 ◽  
Author(s):  
M. J. Robinson ◽  
D. J. Mee ◽  
C. Y. Tsai ◽  
R. J. Bakos
Keyword(s):  
Shock Tunnel ◽  
Force Measurements ◽  
Component Force

Casimir forces and vacuum energy

2017 ◽  
Author(s):  
Serge Reynaud ◽  
Astrid Lambrecht
Keyword(s):  
Casimir Force ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Thermal Fluctuations ◽  
Model Systems ◽  
Vacuum Field ◽  
Force Measurements ◽  
Casimir Forces ◽  
Current State ◽  
Field Fluctuations

The Casimir force is an effect of quantum vacuum field fluctuations, with applications in many domains of physics. The ideal expression obtained by Casimir, valid for perfect plane mirrors at zero temperature, has to be modified to take into account the effects of the optical properties of mirrors, thermal fluctuations, and geometry. After a general introduction to the Casimir force and a description of the current state of the art for Casimir force measurements and their comparison with theory, this chapter presents pedagogical treatments of the main features of the theory of Casimir forces for one-dimensional model systems and for mirrors in three-dimensional space.

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