Precision Liquid Nitrogen Trap Level Controller

1958 ◽  
Vol 29 (10) ◽  
pp. 893-895 ◽  
Author(s):  
George F. Wells
Keyword(s):  
Liquid Nitrogen ◽  
Trap Level ◽  
Liquid Nitrogen Trap

Automatic level control for liquid nitrogen trap

Vacuum ◽  
1959 ◽  
Vol 9 (3-4) ◽  
pp. 231-233
Author(s):  
Lewis D. Miller ◽  
Paul N. Petersen
Keyword(s):  
Liquid Nitrogen ◽  
Level Control ◽  
Liquid Nitrogen Trap ◽  
Automatic Level

Effect of power mode, target type and liquid nitrogen trap on the structure and tribological properties of MoSx coatings

2002 ◽  
Vol 153 (2-3) ◽  
pp. 166-172 ◽  
Author(s):  
Jihui Wang ◽  
W. Lauwerens ◽  
E. Wieers ◽  
L.M. Stals ◽  
Jiawen He ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Tribological Properties ◽  
Target Type ◽  
Liquid Nitrogen Trap ◽  
Power Mode

Compact supersonic molecular beam source with a liquid nitrogen trap

1991 ◽  
Vol 62 (9) ◽  
pp. 2154-2158 ◽  
Author(s):  
Hidehiko Nonaka ◽  
Takashi Shimizu ◽  
Kazuo Arai
Keyword(s):  
Liquid Nitrogen ◽  
Molecular Beam ◽  
Beam Source ◽  
Supersonic Molecular Beam ◽  
Liquid Nitrogen Trap

Liquid nitrogen trap topper

1968 ◽  
Vol 1 (12) ◽  
pp. 1232-1232 ◽  
Author(s):  
D F Klemperer ◽  
J C Snaith
Keyword(s):  
Liquid Nitrogen ◽  
Liquid Nitrogen Trap

scholarly journals Determination of Lewis and Brönsted acid sites by gas flow-injection technique

2014 ◽  
Vol 6 (2) ◽  
Author(s):  
Malik Musthofa ◽  
Ainul Hakimah Karim ◽  
Nurrulhidayah Ahmad Fadzlillaah ◽  
Nur Hazirah Rozali Annuar ◽  
Aishah Abdul Jalil ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Flow Injection ◽  
Gas Flow ◽  
Acid Sites ◽  
Injection Technique ◽  
Bronsted Acid ◽  
Brønsted Acid Sites ◽  
Liquid Nitrogen Trap ◽  
Brönsted Acid

Gas flow-injection technique pyridine-FTIR was studied for determination of Lewis and Brönsted acid sites on the solid super acid catalysts. The system consists of stainless steel gas cell which can be heated up to 623 K, CaF2 windows, pyridine injection port and double liquid nitrogen trap for removal of moisture. Pure nitrogen gas and pyridine were used as a carrier and probe molecule. Pyridine was injected to the sysem at 423 K followed by flushing of N2 gas through double liquid nitrogen trap at 423 for 1 h and at 573 K for 30 min. All spectra were recorded at room temperature. This technique gave similar results to those of taken by vacuum system for HZSM-5, Pt/SO4 2--ZrO2, Al2O3 catalysts.

Sign in / Sign up

Export Citation Format

Share Document