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valentie

English translation: valence

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Dutch term or phrase:valentie
English translation:valence
Entered by: Marijke Mayer

08:13 Jun 2, 2002
Dutch to English translations [PRO]
Science / optical
Dutch term or phrase: valentie
Glas:
Samenstelling, fabricage optisch glas, blance? Insmelten van leesdelen, ontspannings- en transformatietemperatuur, fouten en eigenschappen van optisch glas, glassoorten waaronder fotochromatisch glas, ontspiegelen vacuumopdamping, kleuren.

Bij voorbaat dank.
Marijke
Marijke Mayer
Netherlands
Local time: 19:49
valence
Explanation:
I do not know the exact context, but I believe they are talking of valence, as in this article The Nature of Glass:

The outer electrons are known as Valence electrons. When one is missing, the
ion will be said to have a Valence of +1. When there's an extra available,
the ion is said to have a Valence of -1. Oxygen always has a Valence of
-2 and this dictates many of the reactions that make up the ceramic world;
like we'll see in an example with iron (Fe) below.

The alkalies have a valence of 1 and combine with oxygen in the
ratio 2:1 as Li2O,Na2O and K2O respectively. In an SiO2 melt
the alkalies perturb two Si-O bonds for each Li,Na,K-O bond
added to the melt. Each of the alkalies has a distinct impact on the
properties of the glass according to it's nature as an ion in the
glass. We should look at this more closely.

or

Crystal growth by femtosecond laser irradiation: The production of fibrous single-crystalline structures of BaB2O4 (BBO) in glass was obtained by focusing a laser beam onto a tiny region of a specially designed glass composition containing barium, silicon and boron.

Change of valence of ion species due to femtosecond radiation: The valence of various rare earth ions, such as Sm, which have important optical properties, could be modified by exposing to femtosecond 800 nm (infrared) radiation, called "optical oxidation/reduction," due to the extremely high peak power, allowing multi-photon absorption.



Selected response from:

Vidmantas Stilius
Local time: 20:49
Grading comment
Dank!
4 KudoZ points were awarded for this answer



Summary of answers provided
4valence
Vidmantas Stilius


  

Answers


7 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
valence


Explanation:
I do not know the exact context, but I believe they are talking of valence, as in this article The Nature of Glass:

The outer electrons are known as Valence electrons. When one is missing, the
ion will be said to have a Valence of +1. When there's an extra available,
the ion is said to have a Valence of -1. Oxygen always has a Valence of
-2 and this dictates many of the reactions that make up the ceramic world;
like we'll see in an example with iron (Fe) below.

The alkalies have a valence of 1 and combine with oxygen in the
ratio 2:1 as Li2O,Na2O and K2O respectively. In an SiO2 melt
the alkalies perturb two Si-O bonds for each Li,Na,K-O bond
added to the melt. Each of the alkalies has a distinct impact on the
properties of the glass according to it's nature as an ion in the
glass. We should look at this more closely.

or

Crystal growth by femtosecond laser irradiation: The production of fibrous single-crystalline structures of BaB2O4 (BBO) in glass was obtained by focusing a laser beam onto a tiny region of a specially designed glass composition containing barium, silicon and boron.

Change of valence of ion species due to femtosecond radiation: The valence of various rare earth ions, such as Sm, which have important optical properties, could be modified by exposing to femtosecond 800 nm (infrared) radiation, called "optical oxidation/reduction," due to the extremely high peak power, allowing multi-photon absorption.






    Reference: http://art.sdsu.edu/ceramicsweb/articles/tech_handouts/natur...
Vidmantas Stilius
Local time: 20:49
Native speaker of: Native in LithuanianLithuanian
PRO pts in pair: 27
Grading comment
Dank!
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