Sökning: "järn"

Visar resultat 16 - 20 av 129 avhandlingar innehållade ordet järn.

  1. 16. Förekomst av järn i grundvatten - Problem med järnutfällningar i dräneringssystem

    Författare :Ann-Carin Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  3. 17. Photophysics and Photochemistry of Iron Carbene Complexes

    Författare :Linnea Lindh; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; tidsupplöst spektroskopi; täthetsfunktionalteori; järn-komplex; färgämne; grätzelsolcell; fotokatalys; elektronöverföringsreaktion; time-resolved spectroscopy; density functional theory; earth-abundant; iron-complex; photosensitiser; dye-sensitised solar cell; photocatalysis; electron transfer;

    Sammanfattning : Nature captures sunlight via light-absorbing molecules.Similarly, photosensitisers are used in applications of solar cells and artificial photosynthesis to absorb sunlight, and transfer the excited electron. LÄS MER

  4. 18. Immobilizing catalysts on textiles : case of zerovalent iron and glucose oxidase enzyme

    Författare :Mohammad Neaz Morshed; Vincent Nierstrasz; Frank Hollmann; Högskolan i Borås; []
    Nyckelord :Biocatalysts; Catalyst immobilization; Catalytic reduction; Chitosan; Dye removal; Environmental remediation; Enzyme immobilization; Glucose oxidase; Hyperbranched dendrimers; Heterogeneous catalysis; Heterogeneous bio-Fenton; Heterogeneous Fenton; Inorganic catalysts; Phenol removal; Polyester nonwoven fabric; Pathogenic bacteria removal; Plasma ecotechnology; Polyethylenimine; Textile catalyst; Textile biotechnology; Textile surface modification; Wastewater treatment; Zerovalent iron; 生物催化剂; 涤纶无纺布; 金属颗粒：铁固定化; 超支化树状大分子; 聚酰胺胺树状大分子 3-氨基丙基）; 三乙氧基硅烷; 1-硫代甘油; 聚乙烯胺; 壳聚糖; 葡萄糖氧化酶; 氧化还原酶; 酶固定化，物理吸附; 纤维催化剂; 多相催化; 抗菌纺织品; 革兰氏阳性（G ve）菌 革兰氏阴性（G-ve）菌; 类芬顿; 生物芬顿; 染料去除; 苯酚去除; 生物催化; 产业纺织品; 纺织生物技术; 纺织品表面改性; 环境治理; 废水处理; 零价铁。; Biocatalyseurs; Immobilisation de catalyseurs; Reduction de catalyseurs; Chitosane; Élimination de colorants; Assainissement de l’environnement; Immobilisation d’enzymes; Glucose oxydase; Dendrimères hyper-ramifiés; Catalyse hétérogène; Bio-Fenton hétérogène; Fenton hétérogène; Catalyseurs inorganiques; Élimination de phénols; Non-tissé Polyester; Élimination de bactéries pathogènes; Écotechnologie plasma; Polyéthylèneimine; Catalyseur textile; Biotechnologie textile; Modification de surface textile; Traitement des eaux usées; Fer zéro-valent; Biokatalysatorer; Katalysatorimmobilisering; Katalytisk reduktion; Kitosan; Avlägsnande av färgämnen; Miljösanering; Enzymimmobilisering; Glukosoxidas; Hypergrenade dendrimerer; Heterogen katalys; Heterogen bio-Fenton; Heterogen Fenton; Oorganiska katalysatorer; Fenolavlägsnande; Polyester fiberduk; Avlägsnande av patogena bakterier; Plasmaekoteknik; Polyetylenimin; Textil katalysator; Textil bioteknik; Modifiering av textilytor; Avloppsrening; Zerovalent järn; Textil och mode generell ; Textiles and Fashion General ;

    Sammanfattning : Catalytic systems are one of the most effective technologies of modern chemical processes. The system uses a molecule called ‘catalyst’ that is capable of catalyzing a reaction without being produced or consumed during the process. LÄS MER

  5. 19. En studie i järn : metoder att beräkna landsbygdsbefolkningens järninnehav 1750-1870

    Författare :Per Hallén; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : .... LÄS MER

  7. 20. Improved Energy Efficiency and Fuel Substitution in the Iron and Steel Industry

    Författare :Maria Johansson; Mats Söderström; Henrik Saxén; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; iron and steel industry; energy efficiency; CO2 emissions; fuel substitution; fuel switch; excess heat; biomass gasification; bio-syngas; synthetic natural gas; SNG; energy market scenarios; energy management; barriers; driving forces; järn- och stålindustrin; energieffektivisering; CO2-utsläpp; bränslebyte; överskottsvärme; restvärme; förgasning; bio-syntesgas; syntetisk naturgas; SNG; energimarknadsscenarier; energiledning; hinder; drivkrafter;

    Sammanfattning : IPCC reported in its climate change report 2013 that the atmospheric concentrations of the greenhouse gases (GHG) carbon dioxide (CO2), methane, and nitrous oxide now have reached the highest levels in the past 800,000 years. CO2 concentration has increased by 40% since pre-industrial times and the primary source is fossil fuel combustion. LÄS MER