Essays about: "Sun Lu"

Showing result 6 - 10 of 163 essays containing the words Sun Lu.

1. 6. Investigation of Antenna Radomes in Low Earth Orbits

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Mathias Manohar Gren; [2023]
   Keywords : Materials; Science; Space; Satellites; Antenna Radomes; Beyond Gravity; Coatings; Physics; Chemistry; Low Earth Orbits; Engineering; Lunds University; Materials Chemistry; Technology and Engineering;

   Abstract : Introduction: This master’s thesis focuses on exploring improved alternative material solutions for antenna radomes used to protect Beyond Gravity Sweden’s satellite antennas in low Earth orbits. Background: As the environment in low Earth orbit is harsh, surface materials on satellites experience high levels of atomic oxygen, ultra violet radiation, thermal-fluctuation, charged particles and micro meteoroids. READ MORE

3. 7. Synthesis of Organo-Iron(II) Complexes Including N-Heterocyclic Carbene Ligation as Solar Cell Material.

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Salim Charkas; [2023]
   Keywords : Dye-sensitized solar cell; Transition metal complex; Synthesis iron; N-heterocyclic carbene NHC ; Organic chemistry; Chemistry;

   Abstract : The push-pull design has been shown to increase DSC performance through the introduction of electron-withdrawing groups and electron-donating groups, usually on opposite far ends of the sensitizer. The scope of this thesis was to synthesize several pre-N-heterocyclic carbene ligand analogs that are inspired by the push-pull design in an attempt to investigate their susceptibility to Fe(II) complexation. READ MORE

4. 8. Living with the sun - An investigation in natural light and multi-sensory design

   University essay from Lunds universitet/Institutionen för arkitektur och byggd miljö

   Author : Samuel Grandin Karlsson; [2023]
   Keywords : multi-sensory design; natural light; real-time rendering; Arts and Architecture;

   Abstract : The aim of this thesis is to explore the relationship between natural light and the built environment, by designing a mountain cabin without the use of any artificial lighting. How is it possible to make a house livable and functional without the use of any light sources besides the sun? The thesis digs into the fundamentals of natural light. READ MORE

5. 9. The Development and Testing of Low-Cost Heat Transfer Enhancements for Solar Dryers

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Hoda Mahmoodi; [2023]
   Keywords : Solar dryer; Bhutan; Drying rate; Solar absorber; Technology and Engineering;

   Abstract : In the mountainous regions of Bhutan and Nepal, post-harvest losses cause significant challenges for producers. Open air sun drying is usually used by farmers to preserve their produce. There are many disadvantages to this method. READ MORE

6. 10. Using forest reflectance modelling to estimate albedo for narrow-view satellites

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap; Lunds universitet/Fysiska institutionen

   Author : Nick Bergmans; [2023]
   Keywords : satellite; remote sensing; albedo; surface reflectance; vegetation; forest; machine learning; albedo estimation; Earth and Environmental Sciences;

   Abstract : Surface albedo estimations from remote sensing are invaluable for energy balance descrip- tions in climate research. The aim of this work is to evaluate the possibility of using Sentinel-2 satellite data to get the total albedo of a small, vegetated area. READ MORE