Sökning: "harmonics"

Visar resultat 21 - 25 av 168 avhandlingar innehållade ordet harmonics.

  1. 21. Gear Surface Machining for Noise Suppression

    Författare :Naser Amini; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gear grinding; gear shaving; gears; undulation; surface topography; noise; automotive gearboxes; ghost harmonics; gear honing;

    Sammanfattning : Gear noise in modern automobiles is unacceptable. It has different sources, such as design parameters and manufacturing errors. Manufacturing errors, for example, can be reduced using advanced grinding operations. However, sometimes grinding operations can introduce micro-geometry deviations that cause severe noise problems. LÄS MER

  3. 22. Fragment-based drug discovery : Novel methods and strategies for identifying and evolving fragment leads

    Författare :Edward A. FitzGerald; Helena Danielson; Hanna-Kirsti Schrøder Leiros; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Drug Discovery; Biophysics; Fragment-based drug discovery; Epigenetics; Biosensors; Surface Plasmon Resonance; Interaction Analysis; Second-Harmonics; Biokemi; Biochemistry;

    Sammanfattning : The need for new drugs became ever more apparent in the year 2020 when the world was faced with a viral pandemic. How drugs are discovered and their relevance to society became part of daily discussions in workplaces and homes throughout the world. Consequently, efficient strategies for preclinical drug discovery are clearly needed. LÄS MER

  4. 23. Design and optimization of a permanent magnet motor for a hybrid electric vehicle

    Författare :Johan Hellsing; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optimization; flux harmonics; iron losses; permanent magnet motor; energy efficiency; electric drivetrain;

    Sammanfattning : .... LÄS MER

  5. 24. Towards Intelligent Power-System Monitoring: Segmentation, Feature Extraction, and Identification of Underlying Causes

    Författare :Cuong Le; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; harmonics analysis; Power-system monitoring; segmentation; power-system measurement; power quality; event analysis; signal-processing applications;

    Sammanfattning : The increase in size of modern power systems together with the concept smart grid requires advanced monitoring to ensure system availability, reliability, and power quality. The huge amount of available data no longer permits analysis to be implemented manually and centrally. LÄS MER

  7. 25. Ultra-fast dynamics in atoms and molecules during photoionization: from attoseconds to femtoseconds

    Författare :Erik Månsson; Synkrotronljusfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; photoelectron spectroscopy; momentum imaging; coincident detection; correlation; direct double ionization; Born–Oppenheimer approximation; high harmonics; synchrotron radiation; Fysicumarkivet A:2014:Månsson;

    Sammanfattning : Treating the correlated behaviour of multiple particles is challenging for both theory and experiment. This thesis reports on a variety of experimental investigations aiming to advance the understanding of fundamental processes in atoms and molecules: double ionization, isomerization and dissociation. LÄS MER