Tableau de conversion

Table de conversion du système anglais au système métrique
Poids aux 1 000 pi2 lb/1 000 pi2 X 4,8824 = g/m2
Épaisseur millième de pouce X 25,4 = micromètres (µm)
Densité lb/100 pi2/pt X 192,2 = kg/m3
Rigidité g cm force X 0,0980665 = mN x m
DĂ©chirement grande force X 9,80665 = mN
Force livre force/po X 0,1751268 = kNm
RĂ©sistance pi x lb/po2 X 2,09405 = J/m2
Pression psi X 6,894757 = kPa
Tonnage tonnes courtes X 0,9072 = tonnes métriques
Poids lb X 0,4535924 = kg
Longueur pouces X 2,54 = cm
Superficie pied carré X 0,0929 = m2
Table de conversion du système métrique au système anglais
Grammage g/m2 X 0,2048173 = lb/1 000 pi2
Épaisseur micromètres X 0,0393701 = points
Densité kg/m3 X 0,0052029 = lb/100 pi2/0,001po
Rigidité mN x m X 10,19716 = g cm force
DĂ©chirement mN X 0,1019716 = grande force
Force kNm X 5,710148 = livre force/po
RĂ©sistance J/m2 X 0,4775435 = pi x lb/po2 x 103
Pression kPa X 0,1450377 = psi
Tonnage tonnes métriques X 1,1023 = tonnes courtes
Poids kg X 2,20462 = lb
Longueur cm X 0,3937 = pouces
Superficie m2 X 10,74 = pieds carrés
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Tableau de conversion Outils


Non Advanced Search or Natural Search

The documents are returned sorted on relevance depending on order, proximity, frequency of terms.

Advanced Search or Boolean Search

Default search behavior

By default, all search terms are optional. It behaves like an OR logic. Objects that contain the more terms are rated higher in the results and will appear first in their type. For example, wiki forum will find :

  • objects that include both terms
  • objects that include the term wiki
  • objects that include the term forum

Requiring terms

Add a plus sign ( + ) before a term to indicate that the term must appear in results. Example: +wiki forum will find objects containing at least wiki. Objects with both terms and many occurences of the terms will appear first.

Excluding terms

Add a minus sign ( - ) before a term to indicate that the term must not appear in the results. To reduce a term's value without completely excluding it, use a tilde. Example: -wiki forum will find objects that do not contain wiki but contain forum

Grouping terms

Use parenthesis ( ) to group terms into subexpressions. Example: +wiki +(forum blog) will find objects that contain wiki and forum or that contain wiki and blog in any order.

Finding phrases

Use double quotes ( " " ) around a phrase to find terms in the exact order, exactly as typed. Example: "Alex Bell" will not find Bell Alex or Alex G. Bell.

Using wildcards

Add an asterisk ( * ) after a term to find objects that include the root word. For example, run* will find :

  • objects that include the term run
  • objects that include the term runner
  • objects that include the term running

Reducing a term's value

Add a tilde ( ~ ) before a term to reduce its value indicate to the ranking of the results. Objects that contain the term will appear lower than other objects (unlike the minus sign which will completely exclude a term). Example: +wiki ~forum will rate an object with only wiki higher that an object with wiki and forum.

Changing relevance value

Add a less than ( < ) or greater than ( > ) sign before a term to change the term's contribution to the overall relevance value assigned to a object. Example: +wiki +(>forum < blog) will find objects that contain wiki and forum or wiki and blog in any order. wiki forum will be rated higher.


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