Essays about: "packed cylinders"
Found 4 essays containing the words packed cylinders.
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1. BCP Lithography Defined Arrays of InAs NWs Grown Using MOVPE with Au Seeds
University essay from Lunds universitet/Lunds Tekniska Högskola; Lunds universitet/Fasta tillståndets fysikAbstract : In this report we outline a detailed process flow for a quick and inexpensive implementation of large dense arrays of InAs nanowires (NWs) grown in the reactive ion etching/etched (RIE) pores of a SiO2/SiNx mask on top of an InAs/Si(111) substrate. The self-assembled (hexagonally close-packed) pattern of poly(methyl-methacrylate) (PMMA) cylinders in a poly(styrene) (PS) matrix adopted by a linear diblock poly(styrene-block-methyl-methacrylate) P(S-b-MMA) block-copolymer (BCP) was transferred to the dielectric stack (consisting of a ≈10 nm plasma enhanced chemical vapour deposition/deposited (PECVD) SiNX layer topped by a thin atomic layer deposition/deposited (ALD) SiO2 film) using a two-step RIE procedure. READ MORE
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2. Design of solvent vapor annealing tool and study of kinetics of selfassembly of block copolymers for nano-lithography
University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionenAbstract : Block copolymer lithography is a very promising candidate for nanoscale fabrication and is economically viable. It provides a high resolution, inexpensive, and straightforward approach to nano-size patterning. In this thesis, fundamental concepts and theories of block copolymer lithography are introduced. READ MORE
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3. LES Modelling of Turbulent Flow Through an Array of Cylinders Using OpenFOAM
University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikAbstract : The objective for this master thesis project was to perform simulations for high and low Reynolds number for a porousmedia modelled as quadratic packed cylinders. The simulations were to be performed by using the open source codeOpenFOAM and the turbulence should be modelled by the LES turbulence model in order to resolve details about theturbulence. READ MORE
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4. He Cooled Granular Target Analytical Results and CFD Analysis
University essay from Lunds universitet/Institutionen för energivetenskaperAbstract : A multidisciplinary scientific research center harnessing the world’s most powerful neutron source is going to be built in Lund: ESS, The European Spallation Source. Researchers will be able to study the materials of everyday life in all their rich diversity – from plastics and proteins to medicines and molecules – in order to understand how they are built up and how they work. READ MORE