Search for dissertations about: "Low frequency"

Showing result 1 - 5 of 1498 swedish dissertations containing the words Low frequency.

  1. 1. Pitch, loudness and frequency selectivity in low-frequency hearing loss

    University dissertation from Faculty of Medicine, Lund University

    Author : Jonas Brännström; Lunds universitet.; Lund University.; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; frequency coding; Cochlea; frequency selectivity; hearing fluctuation; inner ear pressure; long-term measurement; Ménière s disease; low-frequency hearing loss; loudness; pitch.;

    Abstract : Patients with Ménière's disease and cochlear hydrops show fluctuating low-frequency hearing loss (FLFHL). At present these changes are followed as patients' subjective reports and occasional measurements. READ MORE

  2. 2. Low Frequency Impact Sound in Timber Buildings Simulations and Measurements

    University dissertation from Linnaeus University

    Author : Jörgen Olsson; Linnéuniversitetet.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Low-frequency; impact sound; light weight floor; timber joist floor; tapping machine; multi-storey timber building; frequency response functions.; Stegljud; Byggteknik; Civil engineering;

    Abstract : An increased share of construction with timber is one possible way of achieving more sustainable and energy-efficient life cycles of buildings. The main reason is that wood is a renewable material and buildings require a large amount of resources. READ MORE

  3. 3. Low frequency noise during work. Effects on performance and annoyance

    University dissertation from Göteborg

    Author : Johanna Bengtsson; Göteborgs universitet.; Gothenburg University.; [2003]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Low frequency noise; performance; workload; annoyance; cortisol; subjective stress; subjective sensitivity to noise; sound characteristics; frequency balance; modulation frequency;

    Abstract : Aims. Low frequency noise (LFN) is defined as "a noise with a dominant frequency content of 20 to 200 Hz". Common sources of LFN in occupational environments are ventilation, heating and air-conditioning systems, computer network installations and compressors. READ MORE

  4. 4. Ultra-Low Power InAs/AlSb HEMTs for Cryogenic Low-Noise Applications

    University dissertation from Göteborg

    Author : Giuseppe Moschetti; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low noise; InAs AlSb; metamorphic; low power; high frequency; high electron mobility transistor HEMT ; cryogenic; ion implantation;

    Abstract : The InAs/AlSb high electron mobility transistor (HEMT) is an emerging microwave device technology for ultra-low power and low noise applications. Due to the low bandgap (0. READ MORE

  5. 5. Low frequency noise in thin film colossal magnetoresistors

    University dissertation from Fysiska institutionen

    Author : Alvydas Lisauskas; KTH.; [2000]
    Keywords : Low frequency; Noise; Colossal magnetoresistance; Uncooled bolometer;

    Abstract : .... READ MORE