Sökning: "magnetometri"

Hittade 5 uppsatser innehållade ordet magnetometri.

  1. 1. Tuning the Curie temperature and phase fraction of FeNi25-based alloys with Mn and Co for magnetocaloric applications

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Marie Sanglé-Ferrière; [2020]
    Nyckelord :Thesis; magnetocaloric effect; Curie temperature; FCC; FeNi25; Avhandling; magnetokalorisk effekt; Curie-temperatur; FCC; FeNi25;

    Sammanfattning : This paper discusses the search of an FeNi25-based alloy with a face-centered cubic crystal structure exhibiting a Curie point around room temperature, for magnetocaloric applications. Fe was substituted in various amounts with FCC-stabilising elements Mn and Co as these elements respectively decrease and increase the Curie Temperature, thus enabling to tune the Curie point. LÄS MER

  3. 2. Undersökning av mindre förkastningar för vattenuttag i sedimentärt berg kring Kingelstad och Tjutebro

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Per Wahlquist; [2019]
    Nyckelord :Kingelstad; Tjutebro; magnetometry; VLF; groundwater; Earth and Environmental Sciences;

    Sammanfattning : På gränsen mellan Helsingborgs och Bjuvs kommun ligger ett område vars förutsättningar för grundvattenuttag bedöms vara dåliga. Av den anledning har en undersökning utförts över en förkastning, tolkad av SGU i just detta område, för att se om denna kan vara vattenförande eller om det kan finnas andra vattenförande strukturer i berget. LÄS MER

  4. 3. Evaluation of DC resistivity and time-domain IP tomography for bedrock characterisation at Önneslöv, Southern Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Daniel Preis Bergdahl; [2016]
    Nyckelord :bedrock; Cole-Cole; resistivity; induced polarization; dyke; weathering; Earth and Environmental Sciences;

    Sammanfattning : For both construction and exploration purposes, knowledge of the subsurface is important. Geophysical exploration methods can be used to acquire an overview of an area on which further investigations can be based. LÄS MER

  5. 4. Gravity and Magnetic Survey, Modelling and Interpretation in the Blötberget Iron-Oxide Mining Area, Bergslagen, Sweden

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Ezra Yehuwalashet; [2016]
    Nyckelord :Blötberget; gravity; Bouguer; magnetic; 3D inversion modelling; surface geology; ore deposit; Blötberget; gravimetri; Bouguer; magnetometri; 3D-modell; ytgeologi; malmfyndighet;

    Sammanfattning : The Blötberget mining area, the focus of this MSc project, is located about 230 km northwest ofStockholm and 12 km southwest of the city of Ludvika (central Sweden). The mining area has beenknown since 1600 for its various types of mineralization particularly iron-oxide deposits (magnetite andhematite) with the mining commenced in 1944. LÄS MER

  7. 5. Geofysiska mätmetoder för prospektering till ballastmaterial

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Erik Bohlin; Ludvig Landen; [2008]
    Nyckelord :prospektering; ballastmaterial; LosAngeles test; microDeval test; kulkvarnstest; resistivitet; IP; normaliserad IP; refraktionseismik; tomografi; geofysik; geologi; aggregate prospecting; electrical resistivity imaging; induced polarization; normalized induced polarization; refraction seismics; tomography; studded tyres test; geophysics; geology; Earth and Environmental Sciences;

    Sammanfattning : The Swedish rock-mass industry is currently in a transition period because new rules and regulations strongly limit the possibility to use naturally sorted aggregates for construction and concrete purposes. Furthermore, research and development within the industry is more oriented towards crushed bedrock aggregates. LÄS MER