Sökning: "noise models"

Visar resultat 1 - 5 av 455 avhandlingar innehållade orden noise models.

  1. 1. Gear noise and vibration : influence of gear finishing method and gear deviations

    Författare :Mats Åkerblom; KTH; []
    Nyckelord :Gear; Gerbox; Noise; Vibration; Transmission error; Dynamic models;

    Sammanfattning : .... LÄS MER

  3. 2. Development and Application of Reactor Noise Diagnostics

    Författare :Joakim K.-H. Karlsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; BWR stability; noise decomposition; reactor noise; control rod vibrations; core barrel vibration; density wave oscillations; noise diagnostics; PWR noise; localisation; channel instability;

    Sammanfattning : A number of problems in reactor noise diagnostics have been investigated within the framework of the present thesis. The six papers presented cover three relatively different areas, namely the use of analytical calculations of the neutron noise in simple reactor models, some aspects of boiling water reactor (BWR) stability and diagnostics of core barrel motion in pressurized water reactors (PWRs). LÄS MER

  4. 3. Noise design : Architectural Modelling and the Aesthetics of Urban Acoustic Spase

    Författare :Björn Hellström; KTH; []
    Nyckelord :architecture; music; aesthetics; sound art; acoustic space; sound design; sound effect; sound identity; sound morphology; graphic notation; sampling culture; acousmatics; metabolic effect; schizophonia;

    Sammanfattning : Noise Design takes up a structural approach to sound issuesin general and more particularly to urban acoustic space. Whilemost recent research efforts in the field adopt a defensiveattitude by seeking to protect people from sounds, this bookcelebrates our constructive and creative relations with thesound world and develops methods to manage sounds as mediatorsof qualitative information. LÄS MER

  5. 4. Experimentally Based HFET Modeling for Microwave and Millimeter Wave Applications

    Författare :Mikael Garcia; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MODFET; soft-breakdown; cold FET; large-signal; source balance; SDHT; dispersion; noise figure; temperature noise model; small-signal; TEGFET; direct extraction; Chalmers model; noise parameters; modeling; HEMT; HFET; noise;

    Sammanfattning : Transistor models are very important in the design of Monolithic Microwave Integrated Circuits (MMICs). Circuit simulations based on accurate transistor models are one of the keys to high circuit yield. Transistor models can also be used to trace problems in the device fabrication processes. LÄS MER

  7. 5. Noise in the school environment : Memory and Annoyance

    Författare :Eva Boman; Högskolan i Gävle; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Noise; meaningful irrelevant speech; road traffic noise; memory; age group; school environment; pupils; teachers;

    Sammanfattning : Objectives.The general objectives of this dissertationwere to examine the effects of acute exposure to meaningfulirrelevant speech and road traffic noise on memory performance,and to explore annoyance responses to noise exposure in theschool environment for pupils and teachers in different agegroups.Methods. LÄS MER