Sökning: "mineral"

Visar resultat 1 - 5 av 332 avhandlingar innehållade ordet mineral.

  1. 1. Mineral Rights : Legal Systems Governing Exploration and Exploitation

    Detta är en avhandling från Stockholm : KTH

    Författare :Eva Liedholm Johnson; KTH.; [2010]
    Nyckelord :TEKNIKVETENSKAP; TECHNOLOGY; Mineral Rights; mineral legislation; exploration permit; claim; exploitation- mining concession; lease;

    Sammanfattning : The objective of this thesis is to examine the legal procedures and systems concerning granting or possessing mineral rights, and how such rights may be exercised, particularly given the diametric interests of land use, ownership and land tenure. The study, comparative in its nature, aims at highlighting the similarities and differences between the countries and states of comparison, and thereby identify interesting solutions of issues relating to the granting and exercising of mineral rights. LÄS MER

  3. 2. Talc as mineral filler in rubber a technique to indicate the surface activity and its influence on composite properties

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Gang Chen; Luleå tekniska universitet.; Luleå University of Technology.; [1991]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 3. Physicochemical studies of oxide zinc mineral flotation

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Seyed Hamid Hosseini; Luleå tekniska universitet.; Luleå University of Technology.; [2008]
    Nyckelord :;

    Sammanfattning : At the present, zinc is produced mostly from zinc sulphide ores because the sulphides are easy to separate from the gangue and to concentrate by conventional flotation techniques but in the case of oxide zinc ores, the recovery of zinc is not enough high. The objective of the present study is to investigate the influence of different cationic, anionic and mixed collectors on the flotation of smithsonite mineral and an oxide zinc ore at various concentrations and pH values. LÄS MER

  5. 4. Biological growth on mineral façades

    Detta är en avhandling från Div of Building Materials LTH, Lund university, Box 118, 221 00 Lund

    Författare :Sanne Johansson; Lunds universitet.; Lund University.; [2006]
    Nyckelord :TEKNIKVETENSKAP; TECHNOLOGY; mosses; biodeterioration; lichens; moulds; mineral facades; building physics; thin rendering on thermal insulation; biological growth; heat transfer; moisture transport; mortar; algae; heat capacity;

    Sammanfattning : During the last years there has been reported considerable and rapid contamination on newly built rendered façades in Sweden due to biological growth. The problem is believed to occur mostly on façades of render applied on thermal insulation, but apart from this it is difficult to find clear relationships indication which façades might be infected. LÄS MER

  7. 5. Some mineral-chemical problems associated with silicate mineral-ore mineral relations

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Anders Lindh; Uppsala universitet.; [1976]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER