Search for dissertations about: "Ved"

Showing result 1 - 5 of 59 swedish dissertations containing the word Ved.

  1. 1. Dioxin emissions from small-scale combustion of bio-fuel and household waste

    Author : Björn Hedman; Stellan Marklund; Calle Nilsson; Brian Gullett; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Source-sorted waste; Household waste; Textile; Biofuel; Firewood; Pellets; Combustion; Wood boiler; Pellet boiler; Backyard burning; Garden waste; PCDD F; dioxin; PCB; Emission factor; Källsorterat avfall; Hushållsavfall; Textil; Biobränsle; Ved; Pellets; Förbränning; Vedpanna; Pelletpanna; Trädgårdsavfall; PCDD F; dioxin; PCB; Emissionsfaktor; Environmental chemistry; Miljökemi;

    Abstract : Denna avhandling behandlar rökgasutsläpp av persistenta organiska föroreningar, framförallt dioxiner, vid förbränning av fasta biobränslen och torrt hushållsavfall i relativt små anläggningar (5-600 kW) utan avancerad rökgasreningsteknik.Samförbränning av avfall och biobränsle i effektiva mindre biobränslepannor testades som en alternativ strategi till den vanligen förekommande storskaliga hanteringen och förbränningen fast hushållsavfall. READ MORE

  2. 2. On the complexity of dealing with introduced plants as cultural heritage : a historical multidisciplinary study of plants introduced to Norway from 1750 to 1900, exemplified with Abies alba Mill. (European silver fir) as a case species

    Author : Ulrika Ridbäck; Norges miljø- og biovitenskapelige universitet; []
    Keywords : HUMANITIES; HUMANIORA; NATURAL SCIENCES; NATURVETENSKAP; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; NATURVETENSKAP; LANTBRUKSVETENSKAPER; HUMANIORA; NATURAL SCIENCES; AGRICULTURAL SCIENCES; HUMANITIES; plants; flora; Norway; European silver fir; Abies alba; plant introduction; history; landscape management;

    Abstract : .... READ MORE

  3. 3. Old-Growth Forests in the High Coast Region in Sweden and Active Management in Forest Set-Asides

    Author : Jennie Sandström; Bengt-Gunnar Jonsson; Mattias Edman; Mikael Ohlson; Mittuniversitetet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Coarse woody debris; Dead wood; Dendrochronology; Fire history; Forest conservation; Forest structure; Log; Meta-analysis; Pine heath forest; Prescribed burning; Saproxylic fungi; Saproxylic beetles; Snag; Wood-inhabiting fungi; Aktiv skötselmetod; Bevarandebiologi; Brandhistorik; Dendrokronologi; Död ved; Hällmarkstallskog; Lågproduktiv skog; Meta-analys; Naturvård; Naturvårdsbrand; Skogsstruktur; Solbelyst död ved; Stock; Torraka; Vedlevande svamp; Vedlevande insekter; Åldersstruktur;

    Abstract : In today´s intensively managed landscape, very few forests with old-growth characteristics and little human impact exist. One of the rare exceptions is pine forests on rocky soils, a forest type which has probably escaped extensive human use because of its low productivity. READ MORE

  4. 4. Sustainable Waste Management : methods and framework for analysis

    Author : Anders Klang; Mittuniversitetet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sustainable development; waste management; decision-making; indicators.; Environmental engineering; Miljöteknik;

    Abstract : Dealing with waste is a major issue in our endeavour to create a sustainable society. The purpose of this thesis is to develop a model for assessing sustainable development in waste management systems. The model should provide a valid, reliable, useful and efficient assessment tool for waste management planners. READ MORE

  5. 5. Intra-industry trade: measurements, determinants and growth : a study of Swedish foreign trade

    Author : Pär Hansson; Lars Lundberg; David Greenaway; Örebro universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Intra-industry trade; determinants; comparative costs; factor intensity; product differentiation; elasticity of substitution; economies of scale; quasi-homothetictastes; Sweden; Economics; Nationalekonomi; intra-industry trade; quasi-homothetic tastes;

    Abstract : The conclusions are that a traditional factor proportions model seems neither theoretically nor empirically to explaing IIT. However, a relaxation of the assumption of homogeneous products in an industry gives rise to several implications for IIT. READ MORE