Essays about: "copper"

Showing result 1 - 5 of 282 essays containing the word copper.

  1. 1. Geophysical investigation of the Arvidsjaur volcanics and the Archean-Proterozoic boundary

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Erik Bjänndal; [2019]
    Keywords : Laver SimPEG MT Magnetotelluric Magnetic Inversion;

    Abstract : In this work the magnetic and magnetotelluric (MT) geophysical methods have been used to produce two 3D models for the Laver area in southern Norrbotten. A new discovery of a porphyry copper deposit located at the Lill-Laverberget was reported by Boliden in 2012. READ MORE

  2. 2. Chemical Stabilization of Arsenic in Contaminated Soil under Low Redox Conditions

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Eva Smedborn Pausson; [2019]
    Keywords : ;

    Abstract : Remediation techniques for arsenic contaminated soil have previously focused mostly on the surface soil layers where aerobic conditions are prevalent. In this master thesis, chemical stabilization by adding zero-valent iron (Fe(0)) and calcium oxide (CaO) to an arsenic-contaminated soil under low redox conditions have been studied through up-flow percolation tests. READ MORE

  3. 3. Prototype manufacturing of microwave components using plastic 3D printing

    University essay from Uppsala universitet/Fasta tillståndets elektronik

    Author : Björn Malmquist; [2019]
    Keywords : ;

    Abstract : The ability to easily customize and produce specialized MW-components for research and industry is a real challenge and the need is identified, as standardized parts have limited use and can limit design freedom. This study aims at exploring if there are simple ways to manufacture rectangular X-band waveguides with operating frequency of 8-12GHz with novel polymer additive manufacturing and chemical metal deposition that can match Computer Numerical Control (CNC) manufactured rectangular metal waveguides in performance. READ MORE

  4. 4. Copper bioaccumulation in blue mussels and periwinkles from marinas

    University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Author : Tomas Sjökvist; [2019]
    Keywords : Littorina littorea; Mytilus edulis; antifouling paint; invertebrates; biomonitoring;

    Abstract : Copper (Cu) is a heavy metal that is essential for life but toxic at high concentrations. This toxic effect is used on boats to prevent biofouling on boat hulls by painting the hulls with antifouling paint that contain high levels of Cu. The Cu is slowly diffused out in the water and accumulated by animals higher up in the food chain. READ MORE

  5. 5. The rotation of a stored cylinder body by an outer rotating structure.

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Christopher Vestman; [2019]
    Keywords : Cylinder; Rotation; HEAT; Shaped Charge; Gessner;

    Abstract : HEAT-grenades are wing-stabilized grenades using shaped charge technology. Theshaped charge is a method, producing a jet-beam, with the use of a copper linerin which the aim is to focus the detonation energy to be able to penetrate armourand structures. READ MORE