Essays about: "Sn"
Showing result 6 - 10 of 67 essays containing the word Sn.
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6. Analysis on copper, lead and tin removal in steel scrap sorting : Technologies involved, environmental considerations and economic aspects
University essay from KTH/MaterialvetenskapAbstract : With the urgency of cutting down CO2 emissions to reach climate neutrality by 2050, decarbonization of the steel industry is on the European Commission's agenda. Steelmaking accounts for 10 % of anthropogenic CO2 emissions and it is one of the most challenging sectors to decarbonize. READ MORE
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7. Properties of the Optical Hot Spots in the Circumstellar Ring of SN 1987A
University essay from KTH/FysikAbstract : The proximity of Supernova 1987A provides a great opportunity to study the aftermath of the impact of the ejecta with the dense clumps (observed as ”hot spots”) located in the equatorial circumstellar ring. This thesis examines the properties of the clumps by using Hubble Space Telescope optical imaging taken with the F625W and F675W broad filters between 1994 and 2022. READ MORE
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8. Comparison of the lead-leakage in Pb-Sn hybrid perovskite solar cells and Pb-based perovskite solar cells
University essay from Linköpings universitet/Tema MiljöförändringAbstract : Perovskite solar cells exhibit outstanding device performance and photovoltaic potential in recent ten years. However, the photoactive layer of the majority of perovskite solar cells with outstanding efficiency currently contains toxic lead. READ MORE
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9. Optimizing nitrogen fertilization in ley : Evaluating the usage of N-sensor and other tools for optimized nitrogen fertilization
University essay from SLU/Dept. of Soil and EnvironmentAbstract : Nitrogen is an essential nutrient for plant growth. It has several functions in the plant and a lack of nitrogen can cause severe yield losses. READ MORE
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10. In-situ Growth of Sn-seeded GaAs and GaSb Nanowire Heterostructures
University essay from Lunds universitet/Centrum för analys och syntesAbstract : One of the ways to utilize III-V nanowires, is to make use of the possibility to combine materials and create heterostructures which allows for creating material combinations with new properties. A special interest can be taken into Sb-containing nanowires due to the high electron mobility, however there has been reported difficulties with switching to other materials because of a 'memory effect' where Sb lingers in the system and nanowire. READ MORE