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Showing result 1 - 5 of 67 essays matching the above criteria.

1. 1. Finite element density functional description of linear molecules

   University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

   Author : Malin Nygren; [2024]
   Keywords : ;

   Abstract : This report describes a project performed at Linnaeus University with the task of solving the Schrodinger equation for electrons in homonuclear diatomic molecules, using the finite element method in Python. The Schrodinger equation is solved for the hydrogen atom, nitrogen atom, hydrogen molecule and nitrogen molecule using a finite element method. READ MORE

3. 2. Vibrational signals as indicators of soil fauna health? : A novel approach to environmental monitoring of ants

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Joel Fransson Forsberg; [2023]
   Keywords : Vibrations; Formica ants; Vibrometer; Vibrational signals; Imidacloprid; Before-After-Control-Impact;

   Abstract : Soil fauna provides processes of crucial importance for ecosystem functions, but our ability to observe their actions often depend on destructive methods where the integrity of the studied environment (the soil) is compromised. In this study, I develop and test a new generation of environmental monitoring tools that utilize vibrations made by soil macrofauna to inform about their performance and health. READ MORE

4. 3. High Temperature Tribology of Exhaust Components in Alternative Fuel Engines

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Muhammad Hashir Zaheer; [2023]
   Keywords : High temperature tribology; Wear; Friction; Exhaust manifold; Lip seal ring; Wear resistant coatings; Inconel 718c; SiMo51 ductile cast iron; AlTiN; Tribaloy 400;

   Abstract : Internal Combustion Engine (ICE) exhaust components are exposed to extreme operating temperatures. Thus, it is necessary that they are designed with materials that can sustain thermal and vibrational stresses. READ MORE

5. 4. Cable Shape Optimization - Drag Reduction of Cables Used in Marine Applications

   University essay from KTH/Teknisk mekanik

   Author : Simon Garpenquist; [2023]
   Keywords : Wind Tunnel Experiment; Computational Fluid Dynamics; Aerodynamic Forces; Drag Reduction; Shape Optimization; Flow around Cylinders; Yacht Racing;

   Abstract : It is important to understand the aerodynamic properties of tensioned cables (e.g. used in suspension bridges and yacht riggings), both for drag reduction and vibrational suppression purposes. READ MORE

6. 5. Molecular Insights into the Interactions of Monovalent Cations with Highly charged Fatty Acid Monolayers

   University essay from KTH/Kemi

   Author : Ran Carlhamn Rasmussen; [2023]
   Keywords : VSFS; Langmuir monolayer; ion specific effects; modified Poisson Boltzmann; carboxylic acid; VSFS; Langmuir monolager; jonspecifika effekter; modifierad Poisson Boltzmann; karboxylsyra;

   Abstract : Vibrational sum frequency spectroscopy har använts för att studera interaktionerna mellan monovalenta joner och laddade fettsyramonolager. Subfasen bestod av utvalda alkalihydroxidsaltlösningar med pH12, med huvudfokus på cesiumjonen. READ MORE