Search for dissertations about: "Engineering Acoustics"

Showing result 21 - 25 of 972 swedish dissertations containing the words Engineering Acoustics.

  2. 21. MULTICOMPONENT SPRAY-TURBULENCE INTERACTION

    Author : Vignesh Pandian Muthuramalingam; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gasoline diesel blend; CFD; multicomponent fuel sprays; ethanol iso-octane blend; Stochastic Blob and Bubble VSB2 spray model; direct injection engines;

    Abstract : Blended fuels are gaining importance in automotive industry owing to stringent legislations for emissions. It is important to understand the fuel spray formed as a consequence of injecting blended fuels into the engine (for direct injection engines) and also the influence of fuel spray on combustion properties. READ MORE

  4. 22. Integration of Surface Acoustic Wave and Microfluidic Technologies for Liquid-Phase Sensing Applications

    Author : Kiryl Kustanovich; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; IDE; Resonator; SH-SAW; Impedance Spectroscopy; Surface Acoustic Wave; PDMS; LiNbO3; Microfluidics; Sensor;

    Abstract : This thesis discusses a new concept for construction of a novel SAW in-liquid sensor employing surface acoustic wave resonance (SAR) in a one-port configuration. In this concept, the reflective gratings of a one-port SAW resonator are employed as mass loading-sensing elements, while the SAW transducer is protected from the measurement environment, reducing power losses significantly. READ MORE

  5. 23. On the Aerodynamic Design of the Boxprop

    Author : Alexandre Capitao Patrao; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; Open Rotors; Wake Analysis Method; Propeller Design; Propellers; CROR; Optimization; Tip vortex; Propfans;

    Abstract : Economic factors and environmental awareness are driving the evolution of aircraft engines towards increasingly lower fuel consumption and emissions. The Counter-Rotating Open Rotor (CROR) is actively being researched around the world, promising a significantly increased propulsion efficiency relative to existing turbofans by employing two, unducted, counter-rotating propeller blade rows, thereby increasing the bypass ratio of the engine and decreasing nacelle drag. READ MORE

  6. 24. AURALIZATION, PERCEPTION AND DETECTION OF TYRE–ROAD NOISE

    Author : Alice Hoffmann; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Perception; Psychoacoustics; Rolling Noise; Traffic Detection; Reaction Time; Auralization; Tyre Road Noise;

    Abstract : Due to improvements in combustion engines and electric engines for cars, tyre noise has become the prominent noise source at low and medium speeds. Models exist that simulate the noise produced by a rolling tyre, as do models that auralize specific traffic situations from a basic data set. READ MORE

  7. 25. Synthetic Paper for Point-of-Care Diagnostics : Capillary control, surface modifications, and their applications

    Author : Weijin Guo; Wouter van der Wijngaart; Jonas Hansson; Govind V. Kaigala; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; capillary pump; lateral flow test; synthetic paper; OSTE; microarray; point-of-care; surface energy; viscosity; enrofloxacin; plasma separation; protein recovery rate; agglutination; antibody; glass; nitrocellulose; hydrophilic treatment; click chemistry; thiol-yne; thiol-maleimide; biotin-streptavidin; kapillärpump; lateral flödesprov; syntetiskt papper; OSTE; mikroarray; point-of-care; ytenergi; viskositet; enrofloxacin; plasmaseparation; proteinåtervinningshastighet; agglutination; antikropp; glas; nitrocellulosa; hydrofil behandling; klickkemi; tiol-yne; tiol-maleimid; biotin-streptavidin; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Capillary-based platforms for diagnostics are popular for the point-of-care diagnostics market because of their low cost, easy fabrication, and easy operation. Lateral flow tests are an excellent example of capillary-based platforms for point-of-care diagnostics. READ MORE