Search for dissertations about: "modulation transfer function"

Showing result 1 - 5 of 32 swedish dissertations containing the words modulation transfer function.

  1. 1. Applications of the Complex Modulation Transfer Function on SEA-systems

    University dissertation from Dept. of Engineering Acoustics, LTH, Lund University, P.O.B. 118 SE-221 00 Lund Sweden

    Author : Karl-Ola Lundberg; Lunds universitet.; Lund University.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vacuum technology; hydraulics; Mechanical engineering; modulated noise; in-situ; modulation transfer function; loss factor; SEA; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik;

    Abstract : The SEA coupling and dissipation loss factors are determined in-situ from Complex Modulation Transfer Functions, CMTF:s, based on measured impulse-responses. A quotient of CMTF:s is least-square curve-fitted to a SEA model and the SEA loss factors are determined from the results of the curve-fit. READ MORE

  2. 2. MULTIFOCAL SPHERICAL FISH LENSES

    University dissertation from Dept. of Engineering Acoustics, LTH, Lund University, P.O.B. 118 SE-221 00 Lund Sweden

    Author : Yakir Gagnon; Lunds universitet.; Lund University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Multifocal Lens; Adaptation; Dispersion; Spherical lens; Model; Fish; Ray-trace; Longitudinal Chromatic Aberration; Longitudinal Spherical Aberration; Modulation Transfer Function; Point Spread Function; Refractive Index Gradient;

    Abstract : Popular Abstract in Swedish Syn är avgörande för många djurs överlevnad. En väldigt viktig del av ögat är linsen då ljuset fokuseras genom den. I denna studie har jag undersökt hur fisklinser fokuserar ljus. READ MORE

  3. 3. Wiring Components of the Respiratory Chain Modulation of the Respiratory Chain in Yeast and Bacteria

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Jacob Schäfer; Stockholms universitet.; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cytochrome c oxidase; Electron transfer; Membrane protein; Ligand; Kinetics; Mechanism; Rcf1; Cytochrome c; Respiratory supercomplex; Cryo-electron microscopy; biokemi; Biochemistry;

    Abstract : The enzyme complexes of the respiratory chain are organized in supramolecular assemblies, so-called respiratory supercomplexes. In the yeast Saccharomyces cerevisiae, these supercomplexes consist of two copies of complex III (bc1 complex) and one or two copies of complex IV (cytochrome c oxidase, CytcO). READ MORE

  4. 4. Control and Analysis of Pulse-Modulated Systems

    University dissertation from Stockholm : KTH

    Author : Stefan Almér; KTH.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Pulse-width modulation; Periodic systems; Stability analysis; Harmonic analysis; Lyapunov methods; Dynamic phasors; Harmonic transfer function; Switched mode power converters; Sampled data modeling; H-infinity synthesis; MATHEMATICS Applied mathematics Optimization; systems theory; MATEMATIK Tillämpad matematik Optimeringslära; systemteori;

    Abstract : The thesis consists of an introduction and four appended papers. In the introduction we give an overview of pulse-modulated systems and provide a few examples of such systems. Furthermore, we introduce the so-called dynamic phasor model which is used as a basis for analysis in two of the appended papers. READ MORE

  5. 5. A study of some energy dependent characteristics of X-ray screens used in diagnostic radiology screen-film sensitivity, MTF and some related factors

    University dissertation from Umeå : Umeå universitet

    Author : Mikael Karlsson; Umeå universitet.; [1983]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Intensifying screens; x-ray screens; fluorescent screens; modulation transfer function; MTF; x-ray screen sensitivity; fluorescent K-radiation sources;

    Abstract : Fluorescent x-ray screens are used in medical x-ray diagnostics to absorb x-ray photons and convert these x-ray photons to visible light. The light distribution from these screens are then registered on photographic film to give an x-ray image. READ MORE