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Visar resultat 16 - 20 av 133 avhandlingar som matchar ovanstående sökkriterier.

  1. 16. Prediction horizon requirement  in control and extreme load analyses for survivability : Advancements to improve the performance of wave energy technologies

    Författare :Zahra Shahroozi; Jens Engström; Malin Göteman; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control; optimal velocity; non-causality; maximum power output; extreme waves; wave tank experiment; end-stop compression; wave breaking slamming; PTO damping; return level; return period; peak-over-threshold;

    Sammanfattning : The main objective of wave energy converters (WECs) is to ensure reliable electricity production at a competitive cost. Two challenges to achieving this are ensuring an efficient energy conversion and offshore survivability. LÄS MER

  3. 17. Prior informed consent and hazardous trade : Regulating trade in hazardous goods at the intersection of sovereignty, free trade and environmental protection

    Författare :David Langlet; Said Mahmoudi; Günther Handl; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; informed consent; PIC; trade bans; effective sovereignty; environmental law; free-trade law; hazardous substances; wastes; chemicals; GMOs; Environmental law; Miljörätt; miljörätt; Environmental Law;

    Sammanfattning : This dissertation analyses international and to some extent domestic law pertaining to trade in hazardous substances. Hazardous trade regulation is found to promote or accommodate three objectives in particular: the strengthening of the ability of (importing) States to exercise control of transboundary flows of hazardous substances; the protection of human health and environment; and the avoidance of impediments to the free flow of goods. LÄS MER

  4. 18. A Passive Sampling System for Monitoring Metals in the Aquatic Environment

    Författare :Lena B Blom; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metal diffusion; metal monitoring; metal speciation; aquatic systems; passive sampling system;

    Sammanfattning : Water monitoring is undertaken routinely as a requirement of water quality legislation. It is usual that water monitoring is undertaken through spot sampling. A passive sampling system has been developed for the aquatic environment that provides time-averaged (integrated) concentrations for metals. LÄS MER

  5. 19. Global Phosphorus supply chain dynamics: Sustainability implications for the 21st century

    Författare :Claudiu Eduard Nedelciu; Ingrid Stjernquist; Kristin Vala Ragnarsdottir; Birgit Kopainski; Pål Börjesson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phosphorus; supply chain; food security; circularity; systems thinking; system dynamics modeling; naturgeografi; Physical Geography;

    Sammanfattning : Phosphorus is an essential yet irreplaceable macronutrient for agriculture and thus plays a key role in global food security. Most of the phosphate fertilizers are produced from phosphate rock, a finite mineral resource that is mined and processed at great environmental and social costs. LÄS MER

  7. 20. On the exposure assessment of engineered nanoparticles in aquatic environments

    Författare :Julian A. Gallego-Urrea; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; aquatic nanoparticles; exposure assessment;

    Sammanfattning : The socio-economic benefits anticipated with the use and production of nanomaterial and nanoparticles in consumer products are linked to the fulfillment of the requirement for sustainability during the whole material life cycle. Engineered nanoparticles (ENP) can be of environmental concern, both due to the possible hazardous effects but also due to the differences in properties compared to regular chemicals, e. LÄS MER