Sökning: "Reference condition"

Visar resultat 1 - 5 av 150 avhandlingar innehållade orden Reference condition.

  1. 1. A paleolimnological perspective on liming – implications for defining reference conditions in Swedish lakes

    Författare :Matilda Norberg; Ingemar Renberg; Helen Bennion; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Acidification; Liming; European Water Framework Directive; Reference condition; Diatoms; Paleolimnology; Monitoring; Lake sediments; Earth sciences; Geovetenskap; Earth Sciences with Specialization Environmental Analysis; geovetenskap med inriktning mot miljöanalys;

    Sammanfattning : Using paleolimnological techniques, I have studied surface-water acidification and the effects of liming in Swedish lakes on a decadal to millennial time-scale. The overall objective was to contribute to the discussion on the fulfilment of goals within the Swedish liming program. LÄS MER

  3. 2. Metoder att välja korrektioner vid fuktberäkningar med variabelt utomhusklimat

    Författare :Eva Harderup; Avdelningen för Byggnadsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; moisture flow; Moisture; numerical modelling; calculation model; moisture distribution; non-linear moisture flow; external climate; moisture calculations; corrections; Building construction; periodic boundary condition; reference year; Byggnadsteknik;

    Sammanfattning : Determination of the design conditions for moisture resistance requires in a Moisture Design number of different moisture calculations to be made in order to determine the moisture status within, or on the surface of, a structure. The objective of this work has been to ascertain how to allow for variations in climate data in order to be able to determine the most unfavourable moisture status likely to be encountered during the life of a building. LÄS MER

  4. 3. On Improvement Of Maintenance Function : A Reference Model And Improvement Methodology

    Författare :Jerzy Mikler; Bengt Lindberg; Amos Ng; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maintenance reliability improvement; Production Engineering; Industriell produktion;

    Sammanfattning : In order to produce products and services, companies are using various tangible assets such as production equipment and facilities. The goal of the maintenance function is to maintain these assets so they operate safely, efficiently and economically. LÄS MER

  5. 4. Condition Monitoring in Diesel Power Plants with Special Reference to the Supercharging Systems

    Författare :Savo Gjirja; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : A recent tendency for research work concerning diesel engine has been concentrated to diagnostic analysis, which intends to detect early adverce influences on engine performance and to conserve the normal conditions of the diesel engine.A diagnostic system is meant to pinpoint the action which should be taken to bring the engine back to standard performance. LÄS MER

  7. 5. Unsupervised feature learning applied to condition monitoring

    Författare :Sergio Martín del Campo Barraza; Fredrik Sandin; Kjersti Engan; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

    Sammanfattning : Improving the reliability and efficiency of rotating machinery are central problems in many application domains, such as energy production and transportation. This requires efficient condition monitoring methods, including analytics needed to predict and detect faults and manage the high volume and velocity of data. LÄS MER