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Visar resultat 1 - 5 av 30 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Enzyme catalysis towards bio-based UV-curable buildingblocks

   Författare :Maja Finnveden; Mats Martinelle; Katja Loos; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Enzyme; Enzymatic Polymerizations; Biocatalysis; Lipase; CalB; MsAcT; Substrate specificity; Selectivity; Polymer Chemistry; UV-curring; Bioteknologi; Biotechnology;

   Sammanfattning : Polymeric materials are found in virtually all areas of daily life; they are found in everything from packages keeping our food safe to the buildings where we spend our days, and the production is a worldwide industry. Although polymeric materials play a big part in sustainable solution’s, a lot can be done to develop more environmental methods for producing them. LÄS MER

3. 2. On the possibilities of life-cycle assessment : development of methodology and review of case studies

   Författare :Göran Finnveden; Helias Udo de Haes; Stockholms universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Natural Resources Management; naturresurshushållning;

   Sammanfattning : Life-cycle assessment (LCA) studies the environmental aspects and potential impacts throughout a product's life from raw material acquisition, through production, use and disposal.Different aspects and limitations of LCA methodology are discussed. New methods for describing landfilling and incineration of solid waste in LCAs are suggested. LÄS MER

4. 3. Valuation of environmental impacts and its use in environmental systems analysis tools

   Författare :Sofia Ahlroth; Göran Finnveden; Lars Drake; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; valuation; weighting; ecosystem services; elimate change; impact assessment; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Valuation of environmental impacts in monetary terms is a both difficult and controversial undertaking. However, the need to highlight the value of ecosystem services in policy decisions has become more and more evident in the face of climate change and diminishing biodiversity in the sea and other ecosystems. LÄS MER

5. 4. Environmental Impacts of Electronic Media : A Comparison of a Magazine’s Tablet and Print Editions

   Författare :Mohammad Ahmadi Achachlouei; Göran Finnveden; Åsa Moberg; Elisabeth Hochschorner; Stig Irving Olsen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electronic media; tablet computer; print media; magazine; information and communication technology ICT ; Internet; energy use; environmental impacts; life cycle assessment LCA ;

   Sammanfattning : The aim of this thesis is to assess potential environmental impacts of electronic media distribution and consumption—from a life cycle perspective—as compared to those of print media.The thesis consists of a cover essay and two papers appended at the end of the thesis. The cover essay summarizes the papers and puts them in context. LÄS MER

7. 5. Exploring the Effects of ICT on Environmental Sustainability: From Life Cycle Assessment to Complex Systems Modeling

   Författare :Mohammad Ahmadi Achachlouei; Åsa Moberg; Göran Finnveden; Lorenz M. Hilty; Chris Preist; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Information and communication technology ICT ; sustainability assessment; electronic media; tablet; print media; magazine; Internet; energy; environmental impact; life cycle assessment LCA ; System Dynamics; agent-based modeling; differential equations; simulation modeling; complex and dynamic systems modeling; Informations- och kommunikationsteknik IKT ; hållbarhetsbedömning; elektroniska media; surfplatta; tryckta media; tidskrift; Internet; energi; miljöpåverkan; simulering; differentialekvationer; modellering av komplexa och dynamiska system; System Dynamics; livscykelanalys LCA ; agentbaserad modellering; Planering och beslutsanalys; Planning and Decision Analysis; Informations- och kommunikationsteknik; Information and Communication Technology; Industriell ekologi; Industrial Ecology; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

   Sammanfattning : The production and consumption of information and communication technology (ICT) products and services continue to grow worldwide. This trend is accompanied by a corresponding increase in electricity use by ICT, as well as direct environmental impacts of the technology. Yet a more complicated picture of ICT’s effects is emerging. LÄS MER