Sökning: "Geoffrey Daniel"

Hittade 2 avhandlingar innehållade orden Geoffrey Daniel.

  1. 1. Reduction of refining energy during mechanical pulping : using pressurised chip compression and sulphite pre-treatment

    Författare :Erik Nelsson; Geoffrey Daniel; Mittuniversitetet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Chip pre-treatment; double disc refiner; energy efficiency; Impressafiner; low dosage; Norway spruce; refining intensity; single disc refiner; sulphite pre-treatment; thermomechanical pulp;

    Sammanfattning : The effects of pressurised compressive chip pre-treatment and low dosage sulphite pre-treatment were evaluated for production of thermomechanical pulp in mill scale trials using Norway spruce (Picea abies) at the Braviken paper mill (Holmen Paper AB, Sweden). The general aim of the study was to improve the energy efficiency during the production of mechanical pulps suitable for news and improved news grade papers. LÄS MER

  3. 2. To Have and to Hold: Continuity and change in property rights institutions governing water resources among the Meru of Tanzania and the BaKgatla in Botswana; 1925-2000

    Författare :Ellen Hillbom; Ekonomisk-historiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; institutional change; Botswana; institutions; Kgatleng; Meru; natural resources; property rights; Tanzania; Sub-Saharan Africa; water; Social and economic history; Ekonomisk och social historia;

    Sammanfattning : Allocation, control, and management of natural resources are issues that absorb researchers within both the social and natural sciences. This study deals with such research questions as well as with one of the most fundamental issues in Economic History – namely institutional change. LÄS MER