Sökning: "charcoal"

Visar resultat 6 - 10 av 46 avhandlingar innehållade ordet charcoal.

  1. 6. Landscapes of Technology Transfer : Swedish Ironmakers in India 1860–1864

    Författare :Jan Af Geijerstam; KTH; []
    Nyckelord :HUMANIORA; HUMANITIES; History of technology; industrial heritage studies; industrial archaeology; technology transfer; diffusion; technological systems; landscapes of technology; iron and steel; charcoal iron; direct and indirect ironmaking; bloomeries; 19th century; indu; Historiska studier av teknik; vetenskap och miljö; History of Science; Technology and Environment;

    Sammanfattning : In the early 1860s three Swedes, Nils Wilhelm Mitander,Julius Ramsay and Gustaf Wittenström, were engaged by theBritish to build and run charcoal-based ironworks in India.These works, the Burwai Iron Works of the British Government inthe case of Mitander and the privately owned Kumaon Iron Worksin the case of Ramsay and Wittenström, were both to bebased on the most modern European technology. LÄS MER

  3. 7. Functional role of fire-derived charcoal in boreal forest ecosystem processes

    Författare :Nathalie Pluchon; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Charcoal is a natural product of wildfires which operate as a major natural disturbance in boreal forested ecosystems. This carbon (C)-rich material is present in most forest soils but its effects on ecosystem processes remain poorly understood. LÄS MER

  4. 8. Samhävd och rågång. Om egendomsrelationer, ägoskiften och marknadsintegration i en värmländsk skogsbygd 1630-1750

    Författare :Staffan Granér; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; property rights; entitlements; common-rights; modernisation; property relations; enclosure; land consolidation; open fields; institutional change; laws; legal practice; court rolls; iron mills; market integration; field-system; agrarian history; forest history; Värmland; swiddening; charcoal-burning; timber cutting;

    Sammanfattning : THY NEIGHBOURS PROPERTY. Property Relations, Enclosures and Market Integration in a Forest District of Central Sweden 1630-1750. Written in Swedish with a Summary in English. The development towards more exclusive and private agrarian property rights has been considered one of the most important and crucial aspects of the modernisation process. LÄS MER

  5. 9. Ash transformation in thermochemical conversion of different biomass resources with special focus on phosphorus

    Författare :Ali Hedayati; Marcus Öhman; Christoffer Boman; Kentaro Umeki; Anita Pettersson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; agricultural biomass; forest residues; sewage sludge; ash transformation; release; potassium; phosphorus; combustion; gasification; bio charcoal; phosphorus recovery; Energy Engineering; Energiteknik;

    Sammanfattning : A great potential exists for increasing the use of bioenergy in thermochemical processes by utilizing agricultural biomass, forest residues, and sewage sludge that have high availability. Many of these biomass assortments have high ash contents with relatively high concentrations of ash-forming elements such as potassium (K), calcium (Ca), silicon (Si), and phosphorus (P). LÄS MER

  7. 10. Bark and charcoal filters for greywater treatment : pollutant removal and recycling opportunities

    Författare :Sahar Dalahmeh; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Water scarcity, inappropriate sanitation and wastewater pollution are critically important global issues. Greywater is a sustainable water source for recycling, so this thesis examined simple, robust, low-cost alternatives for on-site treatment of greywater to irrigation water quality. LÄS MER