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METRE SEA WATER [2 records]
Record 1 - internal organization data 2002-07-05
Record 1, English
Record 1, Subject field(s)
- Metrology and Units of Measure
- Oceanography
- Underwater Diving (Sports)
Record 1, Main entry term, English
- foot of sea water
1, record 1, English, foot%20of%20sea%20water
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
- foot of seawater 2, record 1, English, foot%20of%20seawater
correct, see observation
- FSW 3, record 1, English, FSW
correct, see observation
- fsw 4, record 1, English, fsw
correct, see observation
- metre of sea water 4, record 1, English, metre%20of%20sea%20water
correct
- msw 4, record 1, English, msw
correct, see observation
- msw 4, record 1, English, msw
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Absolute atmospheres (or Atmospheres absolute, or ATA) - The ambient pressure including the air column over the water. The air column = 1 atm. at sea level. In sea water, another atmosphere is added each 33 FSW. There is an increase in pressure per foot of sea water equivalent to 1/33 or .03030303. So ATA may be calculated by multiplying the depth (FSW) by .0303030 and then adding 1 for the air above the water. i.e. the ATA at 46 FSW = (46 [asterisk] .0303030) + 1 = 2.3939 ATA. to convert ATA to FSW.ATA - 1 [asterisk] 33 = FSW. 5, record 1, English, - foot%20of%20sea%20water
Record number: 1, Textual support number: 1 OBS
foot of sea water; fsw; metre of sea water; msw : as per the measurement system in used. 6, record 1, English, - foot%20of%20sea%20water
Record 1, Key term(s)
- feet of seawater
- feet of sea water
- metre of seawater
- metres of seawater
- metres of sea water
- meter of sea water
- meters of sea water
- meter of seawater
- meters of seawater
Record 1, French
Record 1, Domaine(s)
- Unités de mesure et métrologie
- Océanographie
- Plongée sous-marine (Sports)
Record 1, Main entry term, French
- pied d'eau de mer
1, record 1, French, pied%20d%27eau%20de%20mer
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- mètre d'eau de mer 2, record 1, French, m%C3%A8tre%20d%27eau%20de%20mer
correct, see observation, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les problèmes de neurophysiologie sous hautes pressions ont été posés à l'origine par la plongée profonde aux mélanges synthétiques c'est-à-dire, la pratique du travail sous-marin en condition d'équipression avec le milieu (ex : 30 bars ou 3 MPa sous 300 mètres d'eau de mer). Il est apparu que la vie sous pression entraînait des perturbations du système nerveux qui surviennent pour des pressions relativement faibles : 3 à 4 bars avec l'air comprimé, c'est la narcose à l'azote; 10 à 15 bars avec le mélange hélium-oxygène, c'est le syndrome nerveux des hautes pressions (SNHP). 3, record 1, French, - pied%20d%27eau%20de%20mer
Record number: 1, Textual support number: 2 CONT
ATA : atmosphère absolu (1 ATA correspond à la pression au niveau de la mer, 2 ATA est la pression équivalente à une profondeur de 33 pieds d'eau de mer). 4, record 1, French, - pied%20d%27eau%20de%20mer
Record number: 1, Textual support number: 1 OBS
pied d'eau de mer; mètre d'eau de mer : selon le système de mesure utilisé. 5, record 1, French, - pied%20d%27eau%20de%20mer
Record 1, Key term(s)
- pieds d'eau de mer
- mètres d'eau de mer
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1982-03-18
Record 2, English
Record 2, Subject field(s)
- Energy Transformation
- Turbines
Record 2, Main entry term, English
- recovery turbine
1, record 2, English, recovery%20turbine
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Power consumption is relatively high in small plants(of the order of 20 kWh per cubic metre processed). This is due to the inadequate efficiency of the high-pressure pumps and the necessity to circulate and pressurize a large quantity of sea water(about five times the output of water processed) in order to prevent an excessive concentration of brine and a corresponding increase in osmotic pressure. Electricity costs in large installations can be greatly reduced by the use of recovery turbines. 1, record 2, English, - recovery%20turbine
Record 2, French
Record 2, Domaine(s)
- Transformation de l'énergie
- Turbines
Record 2, Main entry term, French
- turbine de récupération
1, record 2, French, turbine%20de%20r%C3%A9cup%C3%A9ration
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La consommation d'énergie est relativement élevée dans les petites installations (de l'ordre de 20 kWh par m [cube] produit), à cause du rendement insuffisant des pompes à haute pression et de la nécessité de faire circuler et de mettre sous pression une forte quantité d'eau de mer, environ 5 fois le débit d'eau produite, pour éviter une trop forte concentration de la saumure et l'augmentation correspondante de la pression osmotique. L'utilisation de turbines de récupération permettra de diminuer très fortement la dépense d'énergie dans les installations importantes. 1, record 2, French, - turbine%20de%20r%C3%A9cup%C3%A9ration
Record 2, Spanish
Record 2, Textual support, Spanish
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