scholarly journals Application of a catalytic combustion sensor (Pellistor) for the monitoring of the explosiveness of a hydrogen-air mixture in the upper explosive limit range

2003 ◽  
Vol 25 (5) ◽  
pp. 115-122 ◽  
Author(s):  
M. Krawczyk ◽  
J. Namiesnik
Keyword(s):  
Electric Current ◽  
Catalytic Combustion ◽  
New Technique ◽  
Air Content ◽  
Continuous Measurements ◽  
A Cell ◽  
A New Technique ◽  
Combustion Of Hydrogen ◽  
Explosive Limit

A new technique is presented for continuous measurements of hydrogen contamination by air in the upper explosive limit range. It is based on the application of a catalytic combustion sensor placed in a cell through which the tested sample passes. The air content is the function of the quantity of formed heat during catalytic combustion of hydrogen inside the sensor. There is the possibility of using the method in industrial installations by using hydrogen for cooling electric current generators.

A new technique for direct measurement of the shear force necessary to detach a cell from a material

Biomaterials ◽  
1998 ◽  
Vol 19 (7-9) ◽  
pp. 871-879 ◽  
Author(s):  
Akiko Yamamoto ◽  
Shuzo Mishima ◽  
Norio Maruyama ◽  
Masae Sumita
Keyword(s):  
Direct Measurement ◽  
Shear Force ◽  
New Technique ◽  
A Cell ◽  
A New Technique

Experimental Study on Vacuum-Assisted Pumping Technique of Steel Tube-Confined Concrete

2009 ◽  
Vol 405-406 ◽  
pp. 89-95
Author(s):  
Shu Guang Hu ◽  
Yan Zhou Peng ◽  
Qing Jun Ding ◽  
Shi Dong Luo
Keyword(s):  
Steel Tube ◽  
Confined Concrete ◽  
New Technique ◽  
Building Site ◽  
Simulation Research ◽  
Air Content ◽  
Mix Proportion ◽  
Optimizing Design ◽  
Concrete Pumping ◽  
A New Technique

A new technique for construction of steel tube-confined concrete (STCC), i.e., vacuum-assisted pumping technique was put forward in this paper, and the simulation research both in laboratory and on the building site had been done. The test results showed that the formation of air membrane between steel tube and core concrete could be effectively inhibited by controlling the air content of concrete through optimizing design for mix proportion of concrete and by regulating the vacuum pressure in steel tube during the process of concrete pumping, and thus the density of concrete was increased and the bond between steel tube and concrete was improved. Therefore, the performance of STCC structure such as the ultimate load-bearing capacity was enhanced. Moreover, this new technique can decrease the difficulty of concrete pumping. The technology had been applied in the construction of Yichang Yangtze River Bridge in Yichang-Wanxian railway.

A new technique for the mapping of oxygen tension on the brain surface

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S543-S543
Author(s):  
Satoshi Kimura ◽  
Keigo Matsumoto ◽  
Yoshio Imahori ◽  
Katsuyoshi Mineura ◽  
Toshiyuki Itoh
Keyword(s):  
Oxygen Tension ◽  
New Technique ◽  
Brain Surface ◽  
A New Technique ◽  
The Brain
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