Sökning: "noise power"

Visar resultat 1 - 5 av 497 avhandlingar innehållade orden noise power.

  1. 1. Power Reactor Noise Studies and Applications

    Författare :Vasiliy Arzhanov; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; power spectra; control rod vibrations; Green s function; nesting hypothesis; adjoint function; fluctuating boundary; noise diagnostics; Accelerator Driven System; localisation algorithm; point reactor and adiabatic approximation;

    Sammanfattning : The present thesis deals with the neutron noise arising in power reactor systems. Generally, it can be divided into two major parts: first, neutron noise diagnostics, or more specifically, novel methods and algorithms to monitor nuclear industrial reactors; and second, contributions to neutron noise theory as applied to power reactor systems. LÄS MER

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

    Författare :Kalle Haikonen; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

  4. 3. Multi-Gigabaud Millimeter-Wave Communication - Challenges and Solutions

    Författare :Jingjing Chen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; phase noise; high-order modulation; 5G; multi-gigabaud; PAM-4; high data rate; white noise; multi-gigabit; phase noise mitigation; 64-QAM; mobile backhaul; VCSEL driver; Frequency multiplier; modem; high frequency oscillator; multiplicative noise; power detector; fronthaul; millimeter-wave communication;

    Sammanfattning : A major challenge in future mobile networks is to overcome the capacity barrier in wireless communication. Utilizing large bandwidth at higher frequencies is key to enabling capacity upgrade for next generation mobile networks (5G). LÄS MER

  5. 4. Noise from wind turbines

    Författare :Olivier Fégeant; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; masking; vibration transmission; diffraction; ambient noise; pseudo-noise; cylindrical shell. Perturbation methods; structural mobility; axoustic outdoor measurement; Building engineering; Byggnadsteknik;

    Sammanfattning : 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. LÄS MER

  7. 5. GaN HEMT Low Frequency Noise Characterization for Low Phase Noise Oscillator Design

    Författare :Thi Ngoc Do Thanh; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Low frequency noise; flicker noise; phase noise; deposition method.; oscillator; VCO; GaAs pHEMT; MMIC; GaN HEMT; passivation; InGaP HBT;

    Sammanfattning : The thesis presents low frequency noise (LFN) characterization of Gallium Nitride (GaN) High Electron Mobility Transistors (HEMTs) for low phase noise oscillator design. First, GaN HEMT technology is benchmarked versus other transistor technologies, e.g. LÄS MER