Search for dissertations about: "noise assessment"

Showing result 1 - 5 of 118 swedish dissertations containing the words noise assessment.

  1. 1. Classroom noise : exposure and subjective response among pupils

    Author : Pär Lundquist; Rauno Pääkkönen; Umeå universitet; []

    Abstract : In Sweden, all children must have access to education of equal value and the curriculum points out the importance of a good environment for development and learning. Modern working methods differ a lot from the traditional. Teaching nowadays is focused on problem-solving. Students are more interactive, working in groups and projects. READ MORE

  2. 2. On the impact of noise and energy demand from traffic : An assessment using microscopic modelling

    Author : Johan Nygren; Susann Boij; Romain Rumpler; Ciarán J. O'Reilly; Arnaud Can; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Traffic simulation; sustainable transport; noise emissions; environmental impact; energy efficiency; Trafiksimulering; hållbar transport; buller; miljöpåverkan; energieffektivitet; Vehicle and Maritime Engineering; Farkostteknik;

    Abstract : Noise emissions from transportation remain one of the greatest environmental issues of modern day. Inhabitants in urban environments are especially exposed, with almost 80 million people in the European Union exposed to noise levels exceeding the recommended limits set by the World Health Organization (WHO). READ MORE

  3. 3. Psychological responses to noise and vibration

    Author : Jessica Körning-Ljungberg; Greg Neely; Ronnie Lundström; Kerstin Persson Waye; Umeå universitet; []
    Keywords : Psychology; Cognitive; Cortisol; Noise; Vibration; Occupational; Vehicle; Weinstein; Occupational; Vehicle; Weinstein; Weinstein; Psykologi; Psychology; psykologi;

    Abstract : Vehicle drivers are a group of workers that are exposed to noise and whole-body vibration (WBV) several hours a day. Some drivers may also be exposed to high mental loads – monitoring and manipulating physical controls while engaging problem solving activities often with strong short-term memory and spatial manipulation components. READ MORE

  4. 4. Assessment of experimental neurotrauma

    Author : Ying-Lai Huang; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Impulse noise; diffuse brain injury; focal brain injury; closed head injury; NSE; S-100; GFAP; apoptosis; astrocytosis; glutamate; c-JUN; rotational acceleration; CSF;

    Abstract : Model systems of closed head injury are designed to replicate aspects of traumatic brain injury, ischemia and epilepsy in man. The aim of this thesis was to (1) develop sensitive systems enabling analyses of the biochemical reactions, as reflected by leakage of marker compounds to the cerebrospinal fluid (CSF); and (2) develop and assess a new model for closed head injury and associated dynamic changes in the brain cell. READ MORE

  5. 5. On Enhancement and Quality Assessment of Audio and Video in Communication Systems

    Author : Andreas Rossholm; Blekinge Tekniska Högskola; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QoE; video quality assessment; video quality metric; multi-linear regression; artificial neural network; support vector machine; quality predictor; machine learning; temporal scaling; spatial scaling; video compression; deblocking filter; noise cancelling; synchronization; audio delay; video delay; GSM interference signal; noise cancellation; notch filtering;

    Abstract : The use of audio and video communication has increased exponentially over the last decade and has gone from speech over GSM to HD resolution video conference between continents on mobile devices. As the use becomes more widespread the interest in delivering high quality media increases even on devices with limited resources. READ MORE