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chief scientist

Glossary entry

English term or phrase:

centimeters squared per volt-second (cm2/Vs)

French translation:

centimètres carrés par volt-seconde (cm2/Vs)

Added to glossary by mediamatrix (X)
Mar 22, 2008 07:37
16 yrs ago
English term

centimetre volts per second

English to French Science Physics
We used mass spectrometers to discover the species of bioactive ions found in nature. We also discovered that the speed at which is ions are produced governs their size. Small negative ions of oxygen had to attain a speed of 1.9 centimetre volts per second
(1.9 cm2/Vs). Unless that speed is achieved the only ions produced are large or medium in size. They cannot be breathed in and simply keep the air clean. Also ions of nitrous oxide and other harmful gases can be produced.

il semble y avoir une incohérence entre le texte et la parenthèse en plus, non ? Merci !
Proposed translations (French)
4 +2 centimètres carrés par volt-seconde
4 square centimeters per volt-second = centimètres carrés par volt et par seconde
Change log

Mar 23, 2008 11:28: mediamatrix (X) Created KOG entry

Discussion

Jennifer Levey Mar 23, 2008:
And how do you say 'km/s'?
Drmanu49 Mar 23, 2008:
Not at all, I amsaying that par (multiplié par) is synonymous to by (mutiplied by).
Jennifer Levey Mar 23, 2008:
So, are you suggesting that 'par volt-seconde' is the same as 'par volt et par seconde' ? Or that 'Vs' is the same as 'V/s'? They are quite different.
Drmanu49 Mar 23, 2008:
that is exactly what "par" means!
Jennifer Levey Mar 23, 2008:
Sorry Drmanu49o, but your answer was incorrect - precisely as regards the significance of 'Vs'. It is not 'volt par seconde' (V divided by s), it is 'volt-secondes' which means 'volts multiplied by seconds'.
Drmanu49 Mar 23, 2008:
I really think this was my answer given much much earlier... which explicits the Vs.
cjohnstone Mar 22, 2008:
tu as raison je comprends pas non plus!!! Des pistes ailleurs dans le texte?

Proposed translations

+2
5 hrs
Selected

centimètres carrés par volt-seconde

The symbol shown in (---) in the source text is correct; the textual explanation is wrong in several respects. Above all, 1.9 is the mobility defined in terms 'centimeters squared per volt-second', not the velocity (defined in metres per second).

Les nanotubes de carbone décrochent un nouveau record de ...- [ Translate this page ]... déplacement des porteurs de charge que sont les électrons sous l'effet du champ électrique; elle s'exprime en cm2/Vs (centimètre carré par volt-seconde) ...
www.zdnet.fr/actualites/informatique/0,39040745,39134328,00... - 53k - Cached - Similar pages


--------------------------------------------------
Note added at 5 hrs (2008-03-22 12:47:01 GMT)
--------------------------------------------------

Extract from the above web-ref:
"L'équipe du professeur Michael Fuhrer du Maryland s'est concentrée sur la "mobilité" des nanotubes de carbone à température ambiante. La mobilité est l'une des principales composantes de la conductivité électrique: elle mesure le déplacement des porteurs de charge que sont les électrons sous l'effet du champ électrique; elle s'exprime en cm2/Vs (centimètre carré par volt-seconde)"
Peer comment(s):
agree GILLES MEUNIER
17 mins
agree rupali_k
37 mins
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "merci"
27 mins

square centimeters per volt-second = centimètres carrés par volt et par seconde

... 10[13] per square centimeter and with room-temperature mobilities of ∼10000 square centimeters per volt-second can be induced by applying gate voltage. ...
cat.inist.fr/?aModele=afficheN&cpsidt=16219473

200 000 centimètres carrés par volt et par seconde ! Telle est la vitesse à la laquelle se déplacent les électrons dans le graphène, « feuille » de carbone ...
www.larecherche.fr/content/breves/listweb - 24k -
Something went wrong...
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