In this study, spent compact fluorescent lamps were characterized to determine the distribution of mercury. The procedure used in this research allowed mercury to be extracted in the vapor phase, from the phosphor powder, and the glass matrix. Mercury concentration in the three phases was determined by the method known as cold vapor atomic absorption spectrometry. Median values obtained in the ...

Off-grid Photovoltaic (PV) systems are empowering technology in underdeveloped countries like Ethiopia where many people live far away from the modern world. Where there is relatively low energy consumption, providing energy from grid systems is not commercially cost-effective. As a result, significant people groups worldwide stay without access to electricity. One remote village in northern Et...

The global vegetable market demands rigorous quality analysis of potato crops to define their reasonable price. Highly accurate machine learning-based automated defect detection systems are necessary for this rising market. On the other hand, artificial illuminating lamps used in these learning decisive determining accuracy. Artificial should provide a perception color that is as similar possib...