Search for dissertations about: "in situ mätningar"

Showing result 1 - 5 of 40 swedish dissertations containing the words in situ mätningar.

  2. 1. Analysis of Arctic ice cloud properties using in-situ and remote sensing measurements

    Author : Veronika Wolf; Thomas Kuhn; Peter Völger; Martin Gallagher; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arctic cirrus clouds; ice particle properties; in-situ measurements; in-situ and lidar comparison; Atmospheric science; Atmosfärsvetenskap;

    Abstract : Cirrus clouds play an important role in the radiation balance of the atmosphere as theycan have a warming and cooling effect. The resulting net radiation effect depends ontheir micro- and macrophysical properties such as particle size, shape, and numberconcentration. READ MORE

  4. 2. Protective and Nanoporous Alumina Films Studied in situ by X-ray and Electrochemical Methods

    Author : Jonas Evertsson; NanoLund: Centre for Nanoscience; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; XRR; XPS; XRF; GTSAXS; EIS; Synchrotron Radiation; Native oxide; Anodization; Anodic aluminum oxide; Nanoporous aluminum oxide; Single crystal; Aluminum alloys; in situ; Fysicumarkivet A:2018:Evertsson;

    Abstract : In this thesis, the studies of native and anodic oxides on both aluminum model single crystal surfaces as well as on aluminum alloys found in applications are presented. The focus has been on the characterization in situ as the oxide is growing by an electrochemical process called anodization. READ MORE

  5. 3. Application of the SASW-technique in geotechnical in-situ testing

    Author : Mats Svensson; Institutioner vid LTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; teknisk geologi; Hydrogeologi; Spectral Analysis of Surface Waves; shear modulus; SASW; multichannel; inversion; Gmax; teknisk geografi; Environmental technology; pollution control; Miljöteknik; kontroll av utsläpp; geographical and geological engineering; Hydrogeology; Civil engineering; hydraulic engineering; offshore technology; soil mechanics; Väg- och vattenbyggnadsteknik;

    Abstract : With the main aim to test the applicability of the surface wave seismic technique Spectral Analysis of Surface Waves (SASW), used for determination of the shear stiffness (shear modulus - Gmax), four areas of applications have been studied. The four areas have been sites with natural geological conditions, sites where non destructive testing is necessary, pavement testing and multichannel testing. READ MORE

  6. 4. On-line Mobile in situ Gamma Spectrometry

    Author : Thomas Hjerpe; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; radiobiologi; Kärnfysik; Nuclear physics; radiation protection.; 137Cs; peak-to-valley method; depth distribution; orphan source search; orphan sources; emergency preparedness; mobile gamma spectrometry; nuclear accidents; Nuclear medicine; radiobiology; Nukleärmedicin;

    Abstract : Mobile in situ gamma spectrometry is an important instrument in the emergency preparedness for nuclear accidents. This work contributes through the development of strategies and analysis methods for two applications: an on-line search for gamma-emitting orphan sources and on-line estimation of the depth distribution of 137Cs. READ MORE

  7. 5. Climatic conditions inside nuclear reactor containments : Evaluation of moisture condition in the concrete within reactor containments and interaction with the ambient compartments

    Author : Mikael OXFALL; Avdelningen för Byggnadsmaterial; []
    Keywords : kärnkraft; betong; in situ mätningar; relativ fuktighet; kokvattenreaktorer; tryckvattenreaktorer; masstransport;

    Abstract : Safety is the top priority at a nuclear facility. The nuclear power plants are designed to prevent radioactive leakage to the surroundings, both during normal operation as well as in case of a severe accident. One of the most important structures in a nuclear power plant, with regard to safety, is thus the reactor containment wall. READ MORE