Tesfaye Feyisa1, 2*, Fekadu Tolessa1, Abebe Belay1, Kusse Kudishe2, Umer sherefedin3, Melak Birara1, Gemechis Mathewos1, Dereje Gelanu1, Menza Zeyitib1.
1 Department of Applied Physics, School of Applied Natural Science, Adama Science and Technology University, Adama, Ethiopia.
2 Department of Applied Physics, College of Natural and computational Science, Jinka University,...
Tesfaye Feyisa, Fekadu Tolessa*, Abebe Belay, Semahegn Asemare, Gemechis Mathewos, Jebel Haji
Department of Applied Physics, School of Applied Natural Science, Adama Science and Technology University, Adama, Ethiopia.
Email: tesfefa@gmail.com
Abstract
Today, high energy consumption and thermal energy management are becoming crucial for sustainable stable environment. Recently, passive...
Newly developed white LEDs are replacing fluorescent lamps and other widely used lighting sources to minimize carbon dioxide emissions and energy loss due to their promising and useful properties such as longer lifespan, reliability, improvement in energy efficiency and luminous efficiency. Tungstates are effective host materials for rare-earth ions dopant for the production of luminescent...
Kimberlite rocks are the primary hosts of diamonds. These rocks have natural radioisotopes that originated from elements formed during supernova processes. These rocks produce new radioisotopes when activated. This work compares the spectral lines of unirradiated kimberlite with irradiated kimberlite. Experimentally, two kimberlites rock with identification numbers S11 and K6 were prepared,...
