Search for dissertations about: "Underwater"

Showing result 1 - 5 of 73 swedish dissertations containing the word Underwater.

  2. 1. Environmental Impact from Wave Energy Converters : Underwater Noise

    Author : Kalle Haikonen; Uppsala universitet; []
    Keywords : ;

    Abstract : Wave energy conversion is a potentially clean and sustainable form ofenergy conversion with no emissions of gases or liquids during operation.There are other environmental issues that need to be taken in consideration.The deployment of a wave power farm will contribute with new surface formarine organisms to colonize. READ MORE

  4. 2. Underwater Worlds : An Ethnography of Waste, Pollution, and Marine Life

    Author : Rasmus Rodineliussen; Bengt Karlsson; Helena Wulff; Marianne Lien; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Aquabiopolitics; Lake Mälaren; Marine Life; Pollution; Relations; Science; Social Media; Stockholm; The Baltic Sea; Time; Trash Diving; Violence; Visibility; Waste; Water; Social Anthropology; socialantropologi;

    Abstract : In this dissertation, I investigate relations between humans, waste, pollution, and marine life. I introduce the concept of Aquabiopolitics as a means to understand how humans govern life in water in order to enrich human life on land. READ MORE

  5. 3. Underwater Positioning

    Author : Patric Jansson; Lars Sjöberg; KTH; []
    Keywords : ;

    Abstract : The project underwater positioning was initiated by the Swedish National Road Administration (SNRA) in 1990. The aim of the project is to study positioning techniques and methods which can be used to position and locate man-made structures and features, especially engineering structures, piles for the foundation*laying of bridge pillars, in shallow water. READ MORE

  6. 4. Microsystems Technology for Underwater Vehicle Applications

    Author : Jonas Jonsson; Greger Thornell; Hugo Nguyen; Johan Köhler; Uppsala universitet; []
    Keywords : Aquatic; Submersible; Underwater; Micro; Miniaturized; Sonar; Sidescan; Topography; Laser; Diffractive; Optics; Sampler; Particle; Microorganism; Acoustic; Enriching; Conductivity; Temperature; Depth; CTD; Flow; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology;

    Abstract : The aim of this thesis work has been to investigate how miniaturization, such as microsystems technology, can potentially increase the scientific throughput in exploration of hard-to-reach underwater environments, such as the subglacial lakes of Antarctica, or other challenging environments, including cave systems and wrecks. A number of instruments and subsystems applicable to miniature submersibles have been developed and studied, and their potential to provide a high functionality density for size-restricted exploration platforms has been assessed. READ MORE

  7. 5. Enabling a Robot for Underwater Surface Cleaning

    Author : Houssam Albitar; Amy Loutfi; Anani Ananiev; Mikael Ekström; Örebro universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; underwater robot; underwater cleaning; biofouling; adhesion; locomotion; stability; Reglerteknik; Automatic Control;

    Abstract : Biofouling build-up on submerged structures such as ships, petroleum and gas storage tanks, electric power plants, bridges, oil rigs etc. is a major problem that affects the surface material of the structure, the eventual hydrodynamic quality of the surface and in some cases the efficacy of cooling systems. READ MORE