Sökning: "provtagning"

Visar resultat 1 - 5 av 74 avhandlingar innehållade ordet provtagning.

  1. 1. Chloride profiling in marine concrete - methods and tools for sampling

    Författare :Henrik Wall; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; klorider; betong; provtagning; concrete; sampling; chloride;

    Sammanfattning : This project focuses on how to determine the chloride content in concrete structures exposed to marine environment in an accurate way. When analyzing dust from dry drilling in concrete, it is very often a fact that the chloride profiles show extensive variations even if the sampling has been performed within a very concentrated area with the sampling points close to each other. LÄS MER

  3. 2. Animating soils : geoarchaeological approaches to past human-environment relationships in the Arctic

    Författare :Philip Jerand; Johan Linderholm; Philip I. Buckland; Carl-Gösta Ojala; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; environmental archaeology; sampling; Sámi archaeology; spatial organisation; Arctic archaeology; geoarchaeology; soil formation; historical archaeology; miljöarkeologi; provtagning; samisk arkeologi; rumslig organisering; Arktisk arkeologi; geoarkeologi; jordmånsbildning; historisk arkeologi; Archaeology; arkeologi; environmental archaeology; miljöarkeologi;

    Sammanfattning : In this thesis, soils and sediments have been used as sources of information on past human activity in Arctic environments. The study has combined geoarchaeological methods and techniques with information from historical documents, ethnographic accounts, and archaeological remains to create integrated narratives of human-landscape interactions in the past. LÄS MER

  4. 3. Laboratory measurements of airborne emissions from car brakes for clean air

    Författare :Guido Perricone; Ulf Olofsson; Fulvio Amato; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automotive brake; non-exhaust emissions; inertia brake dynamometer; airborne particles; PM10; PN; isokinetic sampling; Rebrake; volatiles; real driving cycle; car brake emission factors; running-in.; Bilbroms; icke-avgasemissioner; skivbromsdynamometer; luftburna partiklar; PM10; PN; isokinetisk provtagning; Rebrake; volatiler; verkliga körcykler; emissionsfaktorer; in-körning.; Machine Design; Maskinkonstruktion;

    Sammanfattning : Brake systems are used to safely stop vehicles. The brake pads are pressed against the brake disc, transforming the kinetic energy of the vehicle into heat to be dissipated. LÄS MER

  5. 4. Utveckling av instrument och bedömning av sjuksköterskestudenters kunskaper och färdigheter att genomföra venös provtagning och insättning av perifer venkateter

    Författare :Catharina Ahlin; Magnus Björkholm; Birgitta Klang-Söderkvist; Anna Löfmark; Röda Korsets Högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Assessment; Instrument; Knowledge; Nursing education; Skill; Nursing students; Venipuncture; Peripheral venous catheter;

    Sammanfattning : .... LÄS MER

  7. 5. Provtagnings- och analysstrategi för lämplig mätosäkerhet

    Författare :Patrik von Heijne; Jenny Norrman; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : Prior to the remediation of brownfields, extensive sampling and analysing isdone. The planned and reached measurement uncertainties are seldom asked forcontracting such types of investigations. Therefore they are usually not statednor discussed in the tenders. LÄS MER