Essays about: "hydrogen formation"

Showing result 16 - 20 of 52 essays containing the words hydrogen formation.

1. 16. Analysis of stellar spectra with machine learning

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

   Author : Alvaro Segovia Otero; [2020]
   Keywords : Galactic Archaeology; machine learning; chemical abundances; FGK stars; Physics and Astronomy;

   Abstract : Researchers in the field of Galactic Archaeology have entered the era of industrial revolution. Upcoming surveys are planning on observing tens of millions of stars and high precision and accuracy must be ensured when deriving their stellar parameters and elemental abundances. READ MORE

3. 17. Accurate Abundances of Giant Stars in the Local disk: A manual analysis of IR APOGEE spectra

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

   Author : Ivalu Barlach Christensen; [2020]
   Keywords : Galactic Chemical Evolution; Astrophysics; Astronomy; IR Spectroscopy; Milky Way; Abundance; Physics and Astronomy;

   Abstract : Purpose: In order to study the Galactic Chemical Evolution, elemental abundances are needed. The purpose of this work is to investigate the chemical evolution of the Milky Way by determining several elemental abundances of giants in the local disk. READ MORE

4. 18. Effects of Carbon Functionalization on Hydrogen Oxidation Underneath Graphene Flakes

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

   Author : Johannes Stubbe; [2020]
   Keywords : Graphene; Functionanlization; in situ AP-XPS; water formation; time resolved; catalysts; kinetics; Physics and Astronomy;

   Abstract : Effects of carbon functionalization on the catalytic properties of the space underneath epitaxial graphene flakes on Ir(111) are investigated with Ambient Pressure X-ray Photoelectron Spectroscopy studies of oxygen hydrogenation. The 0. READ MORE

5. 19. Life cycle assessment of coal based direct-reduced iron production in India

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : SABARISH ELANGO; [2020]
   Keywords : ;

   Abstract : The production of iron through direct reduction (Direct-Reduced Iron; DRI) involves the use of natural gas or coal to reduce iron ore to iron through carbothermic reactions at a temperature below its melting point, negating the need for a blast furnace as otherwise required. In India, around 25% of iron is produced through direct reduction. READ MORE

6. 20. Simulation of Anti-Compton Shield Augmentation to the Lundium Decay Station Using Geant4

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

   Author : Daesung Cho; [2019]
   Keywords : Lundium; Geant4; Anti-Compton shield; gamma spectroscopy; Physics and Astronomy;

   Abstract : The Lundium decay station improves on the existing TASISpec spectrometer used to investigate the nuclear structure of superheavy nuclei by photon- and charged particle-spectroscopy. This thesis aims to explore the potential benefits of the future Lundium station with the augmentation of anti-Compton shields com- posed by a set of BGO scintillator bars. READ MORE