Essays about: "a sunny day"

Showing result 1 - 5 of 23 essays containing the words a sunny day.

1. 1. Measuring copper abundances in the Galactic Bulge

   University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Author : Nikolei Höglinger; [2024]
   Keywords : Copper; Galaxy: abundances; Galaxy: bulge; Chemical Evolution; Physics and Astronomy;

   Abstract : Context: The chemical evolution of Cu in the Galactic bulge have been studied in a few studies using red giant branch stars, but the ages of individual red giant stars are difficult to determine. In addition, the bulge has been a challenging region of the Milky Way galaxy to obtain high-resolution spectra of stars, except when observing through certain few small fields into the bulge that are known to have low extinction. READ MORE

3. 2. Värmereducerande åtgärder för urbana mikroklimat

   University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

   Author : Alice Ljungdahl; Ida Grundh; [2023]
   Keywords : klimatförändringar; värmeböljor; värmeöar; värmeöeffekt; klimatanpassning; temperaturreglering; värmereducerande åtgärder; värmereducering; mikroklimat; vegetation; skugga;

   Abstract : Det står klart att rådande klimatförändringar har lett och kommer i framtiden att leda till ökade temperaturer samt fler och längre perioder av värmeböljor. Ökade temperaturer i kombination med värmeöeffekter medför att urbana miljöer är särskilt utsatta och människor som väljer att bosätta sig på sådana platser riskerar allvarliga konsekvenser när det gäller hälsa och välbefinnande. READ MORE

4. 3. Conform with the Wind : Processing short-term ensemble forecasts with conformal based methods for probabilistic wind-speed forecasting

   University essay from Lunds universitet/Matematisk statistik

   Author : Simon Althoff; [2023]
   Keywords : wind-speed; probabilistic; forecasts; forecasting; ensemble; post-processing; conformal prediction; conformal predictive systems; quantile regression forest; non-exchangeable; Mathematics and Statistics;

   Abstract : Forecasting wind has always been an interesting subject, and as large parts of the world are relying more on wind for power production it is becoming even more important to have reliable forecasts. Probabilistic forecasts, where distributions are predicted in contrast to deterministic forecasts, are impor- tant for informed decision making. READ MORE

5. 4. Focal Spot Optimization Using Spatial Light Modulation and a Phase Retrieval Algorithm

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Robert Petersen; [2023]
   Keywords : Spatial Light Modulation; Phase Retrieval Algorithm; Focal Spot Optimization; Adaptive Optics; Wavefront Sensing; Lasers; Physics and Astronomy; Technology and Engineering;

   Abstract : Aberrations to the wavefront of a laser beam reduce the quality of the focal spot and are generally undesired. This project is aimed at determining the aberrations of laser beams by using a phase retrieval algorithm and to show that it is possible to correct the aberrations with a spatial light modulator to optimize the focal spot. READ MORE

6. 5. Improving image quality of a streak camera using periodic shadowing

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

   Author : David-Gabriel Lange; [2021]
   Keywords : combustion physics; laser; lock-in amplification; laser induced fluorescence; periodic shadowing; Rhodamine B; streak camera; Mode-locking; microfluidics; fluorescence lifetime imaging; Physics and Astronomy;

   Abstract : Stray light suppression using a method inspired by lock-in amplification, called periodic shadowing, is examined and demonstrated for a measurement involving a streak camera. The experiment consists of resolving the fluorescent decay of the dye Rhodamine B (RhB) and examining both the rise and the decay of the fluorescence. READ MORE