Search for dissertations about: "impact noise"

Showing result 1 - 5 of 213 swedish dissertations containing the words impact noise.

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

    University dissertation from Uppsala : Institutionen för teknikvetenskaper, Uppsala universitet

    Author : Kalle Haikonen; [2012]

    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

  2. 2. Underwater radiated noise from Point Absorbing Wave Energy Converters Noise Characteristics and Possible Environmental Effects

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Kalle Haikonen; Jan Sundberg; Sigray Peter; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wave energy conversion; renewable energy; environmental impact; marine ecology; underwater noise;

    Abstract : The conversion of wave energy into electrical energy has the potential to become a clean and sustainable form of renewable energy conversion. However, like all forms of energy conversion it will inevitably have an impact on the marine environment, although not in the form of emissions of hazardous substances (gases, oils or chemicals associated with anticorrosion). READ MORE

  3. 3. Noise from wind turbines

    University dissertation from Stockholm : Institutionen för byggnader och installationer

    Author : Olivier Fégeant; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; masking; vibration transmission; diffraction; ambient noise; pseudo-noise; cylindrical shell. Perturbation methods; structural mobility; axoustic outdoor measurement; TECHNOLOGY Civil engineering and architecture Building engineering; TEKNIKVETENSKAP Samhällsbyggnadsteknik och arkitektur Byggnadsteknik;

    Abstract : A rapid growth of installed wind power capacity is expectedin the next few years. However, the siting of wind turbines ona large scale raises concerns about their environmental impact,notably with respect to noise. READ MORE

  4. 4. Noise Aspects of some Si-based One Port Devices and Carbon Nanotubes

    University dissertation from Stockholm : Institutionen för byggnader och installationer

    Author : Hassan Ouacha; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; etching; Schottky contacts; noise; fluctuations; generation; mobility; noise spectroscopy; recombination; p-n diodes; carbon nanotubes; thermal reaction; junction; defects; co-sputtering; irradiation; interface states; low frequency noise;

    Abstract : The p-n junctions and Schottky diodes based on Si1-xGex and SiC are of great importance in modern electronic applications, such as microwave detectors and mixers. Carbon nanotubes (CNTs) have appeared recently as an attractive new class of materials with a reduced dimensionality, and proposed as building blocks for nanoelectronic technology. READ MORE

  5. 5. Frequency Noise in Coherent Optical Systems: Impact and Mitigation Methods

    University dissertation from Stockholm : Institutionen för byggnader och installationer

    Author : Aditya Kakkar; Richard Schatz; Sergei Popov; Gunnar Jacobsen; Xiaodan Pang; Oskars Ozolins; Magnus Karlsson; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Equalization enhanced phase noise; frequency noise; coherent optical communications; carrier phase recovery; carrier phase estimation; circular quadrature amplitude modulation; EEPN; CmQAM; blind phase search; phase noise;

    Abstract : The increase in capacity demand along with the advancement in digital signal processing (DSP) have recently revived the interest in coherent optical communications and led to its commercialization. However, design and development of robust DSP algorithms for example for carrier phase recovery (CPR) becomes complex as we opt for high order modulation formats such as 16QAM and beyond. READ MORE