Sökning: "TECHNOLOGY Engineering mechanics Fluid mechanics"

Visar resultat 1 - 5 av 856 avhandlingar innehållade orden TECHNOLOGY Engineering mechanics Fluid mechanics.

  1. 1. On the Analysis of Energy Efficient Aircraft Engines

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Oskar Thulin; [2017]
    Nyckelord :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; Performance modelling; Aero engine; Turbofan; Aircraft engine; Installed propulsion; Ultra high bypass ratio; Exergy analysis; Engine weight estimate; Variable area fan nozzle; Multiple pivoting flaps; Translating cowls;

    Sammanfattning : Aero engine performance analysis is highly multidimensional using various measures of component performance such as turbomachinery and mechanical efficiencies, and pressure loss coefficients. Using conventional performance analysis, relying on only the laws of thermodynamics, it is possible to understand how the performance parameters affect the component performance, but it is difficult to directly compare the magnitude of various loss sources. LÄS MER

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

    Detta är en avhandling från Stockholm, Sweden : KTH Royal Institute of Technology

    Författare :Weijin Guo; Wouter van der Wijngaart; Jonas Hansson; Govind V. Kaigala; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 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; Biotechnology; Bioteknologi; Chemical Engineering; Kemiteknik; Electrical Engineering; Elektro- och systemteknik; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : 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. LÄS MER

  3. 3. Studies on Diesel sprays under non-reacting and reacting conditions

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Chengjun Du; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; diffusion flame; OH radical; ethanol; spray vaporization; soot formation; cavitation; turbulent; OH* chemiluminescence; laser extinction; LAS; Diesel sprays;

    Sammanfattning : Methods for reducing engine-out emissions are urgently needed to mitigate climate change and air pollution. In diesel engines, the quality of fuel-air mixing and the subsequent combustion process strongly affect fuel efficiency and engine-out emissions. LÄS MER

  4. 4. Assessment of human swallowing using in-vivo and in-vitro approaches

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Muhammad Waqas; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; in-vitro manometery; In-vitro simulations; In-vivo analysis; microstructure analysis; extensional rheology; dysphagia; Ultrasound viscometry; Bolus Rheology;

    Sammanfattning : Texture modification is the most vital strategy to manage dysphagia: a condition in which food and beverages are difficult to swallow. Typically thickeners in the form of starch or gums are added to the food to increase the viscosity and thereby reduce the speed of bolus flow. LÄS MER

  5. 5. Flow over rough surfaces, and conjugate heat transfer, in engineering applications

    Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

    Författare :Bercelay Niebles Atencio; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Skin-Friction Drag; Naphthalene Sublimation Tecnhique; correlation; RANS; Rotating Disk; stator channel; CFD; convective heat transfer; Antifouling paint; electric generator; Impinging Jet; Ship Hull; Roughness Function;

    Sammanfattning : This thesis focuses on two important topics in the field of fluid mechanics and heat transfer that were treated separately. On the one hand, the flow over rough surfaces, which is not yet completely understood, despite of the fact that it has an important implication in many engineering applications, especially in the naval industry for ships and boats because the friction drag caused by fouling, antifouling coatings and roughness in general impacts the fuel consumption and toxic emissions to the atmosphere. LÄS MER