Sökning: "heat sink"

Visar resultat 36 - 40 av 47 avhandlingar innehållade orden heat sink.

1. 36. Topology optimization of transitional flows

   Författare :Harrison Nobis; Dan Henningson; Philipp Schlatter; Paolo Luchini; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direct Numerical Simulation; Topology Optimization; Laminar– Turbulent Transition; Spectral Element Method; Direkt numerisk simulering; topologioptimering; laminär–turbulent omslag; spektralelementmetod; Teknisk mekanik; Engineering Mechanics;

   Sammanfattning : This thesis is concerned with the application of topology optimization in thedesign of structures that control fluids. A framework is developed in the high-order Spectral Element Method (SEM) code Nek5000, extending Nek5000 fromits original capabilities, performing Direct Numerical Simulations (DNS), toperforming density-based topology optimization. LÄS MER

3. 37. Aerosol deposition to coastal forests: a wind tunnel approach

   Författare :Ausra Reinap; Bo L.B. Wiman; Birgitta Svenningsson; Bo Bergbäck; Lise Lotte Sørensen; Linnéuniversitetet; []
   Nyckelord :NaCl aerosol; dry deposition; climate change; coastal-zone forest; Quercus robur; wind tunnel; edge effect; NATURAL SCIENCES; NATURVETENSKAP; Miljövetenskap; Environmental Science;

   Sammanfattning : Aerodynamically rough surfaces of forests provide for efficient air/ canopy exchange of mass, heat and momentum. In that context, the effects of forest edges come into focus, and therefore, coastal-zone forests constitute aparticular concern. LÄS MER

4. 38. Thermal management of electronics in avionics applications

   Författare :Jonas Johansson; Linköpings universitet; []
   Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The development of electronic equipment towards minimizing of cost and size has lead to increased requirements on the cooling equipment for electronics. In avionics applications, constraints are put on all equipment regarding size, weight, and reliability. LÄS MER

5. 39. Preparation and Characterization of the Magnetic Semiconductor (GaMn)As

   Författare :Martin Adell; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The diluted ferromagnetic semiconductor (GaMn)As has been grown by low temperature molecular beam epitaxy and the effects of post growth treatments on the electronic, magnetic and structural properties have been studied. In situ low temperature annealing of (GaMn)As layers has been performed. LÄS MER

7. 40. Development of Feedback Microwave Thermotherapy in Symptomatic Benign Prostatic Hyperplasia

   Författare :Sonny Schelin; Urologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; nephrology; Urologi; nefrologi; Urology; PET; Schelin Catheter; epinephrine; local anaesthetics; microwave thermotherapy; intraprostatic blood flow; PLFT; Benign Prostatic Hyperplasia; intraprostatic temperature; CoreTherm;

   Sammanfattning : Abstract: The purpose of this thesis was to evaluate ProstaLund Feedback Treatment® (PLFT®) and the CoreTherm® device with regard to biophysics, mechanisms of action, treatment indications, additional techniques, efficacy and safety in the treatment of patients with benign prostatic hyperplasia (BPH). The application of two biophysical equations in the PLFT software is explained. LÄS MER