Essays about: "active noise control thesis"

Showing result 1 - 5 of 28 essays containing the words active noise control thesis.

  1. 1. Heterogeneous catalytic reactions studied with transient gas supply and event-averaged ambient pressure x-ray photoelectron spectroscopy

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/NanoLund: Centre for Nanoscience

    Author : Qianhui Liu; [2022]
    Keywords : Ambient pressure x-ray photoelectron spectroscopy; Event-averaging; Pd 100 surface structure oscillation; Physics and Astronomy;

    Abstract : CO oxidation over Pd(100) is studied with ambient pressure x-ray photoelectron spectroscopy (APXPS). Cyclic gas composition pulsing of the CO:O2 ratio, combined with a new method using software based event-averaging by image recognition over many pulses, is used to improve the signal-to-noise ratio substantially. READ MORE

  3. 2. Thermomechanical Design and Analysis of the Lisa Phase Measurement System

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Pablo Martinez Cano; [2019]
    Keywords : LISA; PCB; temperature; passive; aluminum; aluminium;

    Abstract : Gravitational Waves (GWs) are ripples in the curvature of spacetime that propagate as waves at the speed of light while travelling basically undisturbed from the moment of their creation by accelerated masses. GWs provide unique information about astrophysical sources, such as binary systems, allowing their exploration under a wide range of masses, mass ratios and physical states inaccessible otherwise and therefore opening a new window to observe the universe. READ MORE

  4. 3. Predicted Speed Control based on Fuzzy Logic for Belt Conveyors : Fuzzy Logic Control for Belt Conveyors

    University essay from Karlstads universitet/Avdelningen för fysik och elektroteknik

    Author : Agha Rehmat Ali; [2018]
    Keywords : Predicted Speed;

    Abstract : In order to achieve energy savings for belt conveyor system, speed control provides one of the best solutions. Most of the traditional belt conveyors used in the industries are based on constant speed for all operational times. READ MORE

  5. 4. Low-Frequency Noise in InGaAs Nanowire MOSFETs

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Christian Mario Möhle; [2017]
    Keywords : Physics and Astronomy;

    Abstract : Low-frequency (LF) noise (1/f as well as random telegraph-signal (RTS) noise) measurements were performed on high-performance InGaAs nanowire (NW) metal-oxide-semiconductor field-effect transistors (MOSFETs). 1/f noise measurements at room temperature (RT) show that the dominant noise mechanism is carrier number fluctuations. READ MORE

  6. 5. Determination and compensation of magnetic dipole moment inapplication for a scientific nanosatellite mission

    University essay from KTH/Rymd- och plasmafysik

    Author : Csaba Jéger; [2017]
    Keywords : cubesat; magnetic dipole estimation; attitude dynamics; cubesat; magnetisk dipol uppskattning; attityddynamik;

    Abstract : SEAM (Small Explorer for Advanced Missions) is a 3U CubeSat developedat KTH Royal Institute of Technology which will provide highqualityDC and AC magnetic field measurements of Earth’s magneticfield. The measurement system requires extended periods of timeup to 1000 seconds without active attitude control. READ MORE