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3 results

  1. SCIENCE|natural and applied sciences|physical sciences|chemistry

    #574601

    IATE #3511231
    modh an phláta Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Plattenmethode
    de
    Definition Verfahren zur Messung der Oberflächenspannung, bei dem die Flüssigkeit angehoben wird, bis der Kontakt der Oberfläche bzw. Grenzfläche mit der Platte registriert wird Reference auf der Grundlage von KRÜSS GmbH, "Oberflächenspannung : Plattenmethode", Krüss GmbH, Hamburg, ca. 2010, http://www.kruss.de/theorie/messungen/oberflaechenspannung/plattenmethode.html (17.08.2010)
    plate method
    en
    Definition the liquid is raised until the contact between the surface or interface and the plate is registered. The maximum tension acts on the balance at this instant; this means that the sample does not need to be moved again during the measurement. The tension is calculated using the following equation: σ = F / L·cosθ where: σ = surface or interfacial tensionF = force acting on the balanceL = wetted lengthcosθ = contact angleThe plate is made of roughened platinum and is optimally wetted so that the contact angle θ is virtually 0°. This means that the term cosθ has a value of approximately 1, so that only the measured force and the length of the plate need to be taken into consideration Reference KRÜSS Advancing Surface Science: Plate Method http://www.kruss.de/en/theory/measurements/surface-tension/plate-method.html [3.12.2009]
    Comment Correction calculations are not necessary with the plate method.
    méthode de la plaque
    fr
  2. SCIENCE|natural and applied sciences|life sciences

    #570828

    IATE #2243437
    modh an doirte ar phláta Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Plattengussverfahren
    de
    Definition mikrobiologisches Verfahren zur Bestimmung des Keimgehalts (z.B. in Lebensmitteln) Reference ---
    Comment DIV: st 18.9.07
    pour plate technique | pour plate method
    en
    Definition method of direct plate counting where a diluted sample is pipetted into a sterile Petri plate, then melted agar is poured in and mixed with the sample Reference Virginia Tech > Filebox > Direct Plate Counting > Soil Microbiology > Allen Coleman, http://filebox.vt.edu/users/chagedor/biol_4684/Methods/platecounts.html (26.8.2009)
    Comment used to count the number of cells in a sampleThis method yields colonies that form colonies throughout the agar, not just on the surface.
    méthode du milieu coulé
    fr
  3. SCIENCE|natural and applied sciences|life sciences

    #570173

    IATE #2231246
    modh an leata ar phláta Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Ausstrichverfahren
    de
    spread plate method | spread plate technique | surface count
    en
    Definition method of direct plate counting that consists of evenly spreading the diluted sample over an agar plate Reference Virginia Tech > Filebox > Direct Plate Counting > Soil Microbiology > Allen Coleman, http://filebox.vt.edu/users/chagedor/biol_4684/Methods/platecounts.html (26.8.2009)
    Comment used to count the number of cells in a sampleThis method yields colonies that form on the surface of the agar.In this method the mixed culture of microorganisms is not diluted in the melted agar medium (unlike the pour plate method); it is rather diluted in a series of tubes containing sterile liquid, usually, water or physiological saline. A drop of so diluted liquid from each tube is placed on the centre of an agar plate and spread evenly over the surface by means of a sterilized bent-glass-­rod.
    méthode de dénombrement par étalement
    fr