Sökning: "Mineraler"

Visar resultat 1 - 5 av 39 avhandlingar innehållade ordet Mineraler.

  1. 1. Dissertatio chemica de baroselenite in Svecia reperto, cujus partem primam, venia ampliss. ord. philos. præside Johanne Afzelio ... pro gradu philosophico publice ventilandam sistit stipend. regius Axelius Fryxell, Vermlandus. In audit. Gust. maj. d. X Jun. MDCCLXXXVIII

    Författare :Johan Afzelius; Axel Fryxell; Johan Afzelius; Uppsala universitet; []
    Nyckelord :Minerals; Sweden; Mineraler; Sverige;

    Sammanfattning : .... LÄS MER

  3. 2. Dissertatio chemica de pissalitho Sibirico, quam, venia ampliss. ord. philos. præside Johanne Afzelio ... pro gradu philosophico p. p. stipendiarius regius Laurentius Hällström, Gestricius. In audit. Gust. maj. d. XIII Jun. MDCCC. h. s

    Författare :Johan Afzelius; Lars Hällström; Johan Afzelius; Uppsala universitet; []
    Nyckelord :Mineraler; Sibirien; Minerals; Siberia Russia ;

    Sammanfattning : .... LÄS MER

  4. 3. Fundamental investigation to improve the quality of cold mix asphalt

    Författare :Abdullah Khan; Nicole Kringos; Per Redelius; Amit Bhasin; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bitumen; Cold Asphalt Mixtures; Minerals Aggregates; Surface Free Energy; Sorption; Contact Angle; Bitumen Emulsions; Breaking and Coalescence.; Bitumen; kallblandad asfaltmassa; mineraler aggregat; fri ytenergi; sorption; kontaktvinkel; bitumenemulsion; brytning och blandning.; Transportvetenskap; Transport Science;

    Sammanfattning : Cold mix asphalt (CMA) emulsion technology could become an attractive option for the road industry as it offers lower startup and equipment installation costs, energy consumption and environmental impact than traditional alternatives. The adhesion between bitumen and aggregates is influenced by diverse parameters, such as changes in surface free energies of the binder and aggregates or the presence of moisture or dust on the surface of aggregates, mixing temperatures, surface textures (including open porosity), nature of the minerals present and their surface chemical composition, as well as additives in the binder phase. LÄS MER

  5. 4. Towards the enhanced applicability of cold mix asphalt: : An experimental study focusing on surface free energies and the breaking and coalescence of bitumen emulsions

    Författare :Abdullah Khan; Nicole Kringos; Per Redelius; Andreas Loizos; KTH; []
    Nyckelord :Bitumen; Cold Asphalt Mixtures; Minerals Aggregates; Surface Free Energy; Sorption; Contact Angle; Bitumen Emulsions; Breaking and Coalescence; Emulsifiers; Adhesion Promoters.; Bitumen; kallblandad asfalt; mineraler aggregat; fri ytenergi; sorption; kontaktvinkel; Bitumenemulsioner; brytning och koalescensen; emulgatorer; adhesionsegenskaper; Byggvetenskap; Civil and Architectural Engineering;

    Sammanfattning : The environmental, social and economic sustainability of our infrastructure network is clearly of paramount importance to the road-engineering sector as well to society at large. Sustainable road materials and reduced transport of those materials therefore play a significant role. LÄS MER

  7. 5. Groundwater defluoridation by natural minerals : Understanding the process of fluoride removal from drinking water sources in Tanzania

    Författare :Vivian Kimambo; Prosun Bhattacharya; Felix Mtalo; Jyoti Prakash Maity; Jan Hoinkis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluoride removal; Groundwater; Natural minerals; Adsorption isotherms; Batch- and Column Experiments; Kinetics and thermodynamics; Drinking water quality; Sustainability; Kuondolewa kwa fluoride; Maji ya chini ya ardhi; Madini ya asili; isotherms za majaribio ya adsorbenti; Majaribio ya Kundi- na Safu; Kinetics na thermodynamics; ubora wa maji ya kunywa; Uendelevu; Fluoridavlägsnande; Grundvatten; Naturliga mineraler; Batch- och kolonnförsök; Adsorptionsisotermer; Kinetik och termodynamik; Dricksvattenkvalitet; Hållbarhet; Mark- och vattenteknik; Land and Water Resources Engineering;

    Sammanfattning : Fluoride (F-) concentration in drinking water is one of the water quality parameters in countries with high concentrations in groundwater sources. Natural minerals have shown considerable effectiveness in F- removal. LÄS MER