Search for dissertations about: "rectangular"

Showing result 1 - 5 of 175 swedish dissertations containing the word rectangular.

2. 1. Numerical Study of Laminar, Transitional and Turbulent Flow Past Rectangular Cylinders

   Author : Ahmad Sohankar Esfahani; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; blockage; outlet boundary condition; rectangular cylinders; onset of vortex shedding; angle of incidence; incompressible flow; LES; DNS; transition; finite volumes; Reynolds number; numerical simulation; square cylinder;

   Abstract : The subject of flow past slender bluff bodies is of relevance to technical problems associated with energy conservation, structural design and acoustic emissions. The present work is restricted to an important sub-class of slender bluff body flow --- the incompressible flow around a stationary cylinder having a rectangular cross section, the cylinder being exposed to a constant free stream velocity. READ MORE

4. 2. Post tensioned shear reinforcement in rectangular RC beams

   Author : Stig Öberg; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Beam; ultimate state; shear; post tensiones shear reinforcement; reinforced concrete;

   Abstract : .... READ MORE

5. 3. Studies of the Chinese Rectangular Array Algorithm in Nine Chapters

   Author : Li Ma; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : The rectangular array algorithm is a matrix approach for solving simultaneous linear equations. A systematic treatment of this algorithm is found in the classic "Mathematics in Nine Chapters". READ MORE

6. 4. Seasonal and Long-Term Storage of Baled Municipal Solid Waste

   Author : Diauddin Nammari; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; pollution control; Environmental technology; Analytisk kemi; Analytical chemistry; Miljöstudier; Environmental studies; Waste storage; Poly aromatic hydrocarbons PAH ; Dioxin; Self ignition; Volatile organic compounds; GC-MS; Temperature; Interpolation; Baling; Cylindrical bales; Rectangular bales; Miljöteknik; kontroll av utsläpp;

   Abstract : Baling of MSW has been extensively used in Sweden and other countries for the storage of energy (biomass for energy) for incineration and production of either and or electricity and heat. Baling is performed in two principally different ways, leading to cylindrical- or rectangular bales. READ MORE

7. 5. Gap Waveguide Technology- Electromagnetic Packaging and Transitions

   Author : Astrid Algaba Brazalez; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rectangular waveguide; packaging; transition; coplanar waveguide; microstrip; millimeter waves; gap waveguide; perfect magnetic conductor;

   Abstract : The scarcity of available frequency bands for new wireless communication systems, as well as the growing need for higher capacity, motivates the current interest in moving upwards in frequency. The millimeter wave frequencyrange is very attractive to allocate potential commercial opportunities such as short range wireless communications that allow high-speed data/video transmission, and automotive radars for both driver assistance and increasedsafety. READ MORE