PULMONARY DAMAGE DUE TO HIGH PRESSURE OXYGEN BREATHING IN RATS

1964 ◽  
Vol 42 (4) ◽  
pp. 483-490 ◽  
Author(s):  
Dana Jamieson ◽  
HAS ven den Brenk
Keyword(s):  
High Pressure ◽  
Oxygen Breathing ◽  
Pressure Oxygen ◽  
Pulmonary Damage ◽  
High Pressure Oxygen

The time course of brain and blood catecholamines, catechol O-methyltransferase, and amino acids in rats convulsed by oxygen at high pressure

1979 ◽  
Vol 57 (4) ◽  
pp. 390-395 ◽  
Author(s):  
E. W. Banister ◽  
A. K. Singh
Keyword(s):  
Amino Acids ◽  
High Pressure ◽  
Time Course ◽  
Ammonia Concentration ◽  
Aminobutyric Acid ◽  
Brain Catecholamines ◽  
Oxygen Breathing ◽  
Pressure Oxygen ◽  
High Pressure Oxygen ◽  
Catecholamine Concentration

The time course of changes in blood and brain catecholamines, catechol (O-methyltransferase (COMT), ammonia, and amino acids leading to convulsion by high pressure oxygen breathing (OHP) in rats has been investigated. Brain catecholamines were suppressed by OHP. They changed in phase with brain COMT concentration and consequently were not due to the action of this degrading enzyme. Convulsive actions seem not to be influenced by brain catecholamine concentration. Blood adrenaline concentrations are, however, significantly elevated both prior to and during convulsions. In both brain and blood, ammonia concentration increases, glutamate decreases, and glutamine–aspargine increases. It is proposed that the efficacy of the glutamate–glutamine ammonia buffering system in blood and brain is important in the prevention of the onset of convulsions but that when brain γ-aminobutyric acid is depressed to critical levels, convulsions result.

HIGH PRESSURE OXYGEN A-BAND SPECTRA

2015 ◽  
Author(s):  
Brian Drouin ◽  
Jiajun Hoo ◽  
V. Devi ◽  
D. Benner ◽  
David Robichaud ◽  
...  
Keyword(s):  
High Pressure ◽  
Pressure Oxygen ◽  
High Pressure Oxygen ◽  
Band Spectra

High pressure oxygen iodine laser based on twisted flow singlet oxygen generator

2001 ◽  
Author(s):  
B. Vyskubenko ◽  
A. Adamenkov ◽  
S. Ilyin ◽  
Yu. Kolobyanin ◽  
I. Krukovsky ◽  
...  
Keyword(s):  
High Pressure ◽  
Singlet Oxygen ◽  
Iodine Laser ◽  
Pressure Oxygen ◽  
Twisted Flow ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator ◽  
High Pressure Oxygen

Basic Characteristics of a Simultaneous Double-Side CMP Machine, Housed in a Sealed, Pressure-Resistant Container

2010 ◽  
Vol 447-448 ◽  
pp. 61-65 ◽  
Author(s):  
Kei Kitamura ◽  
Toshiro K. Doi ◽  
Syuhei Kurokawa ◽  
Yoji Umezaki ◽  
Yoji Matsukawa ◽  
...  
Keyword(s):  
High Pressure ◽  
Single Crystal ◽  
Effective Action ◽  
Single Crystal Silicon ◽  
Crystal Silicon ◽  
Pressure Oxygen ◽  
Gas Atmosphere ◽  
High Pressure Oxygen ◽  
Oxygen Gas ◽  
Basic Characteristics

We designed and manufactured a prototype of a unique CMP machine, which can perform double-side CMP simultaneously in a sealed and pressure container as regarding effective action of the processing atmosphere around workpieces as important. Polishing experiments with single crystal silicon (Si) wafers (100) are performed by charging the container with various gases. As a result, the removal rates increased by up to 25% under high pressure oxygen gas atmosphere.

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