Background In December 2019, the COVID-19 pandemic initially erupted from a cluster of pneumonia cases of unknown origin in the city of Wuhan, China.Presently, it has almost reached 94 million cases worldwide.Lebanon on the brink of economic collapse and its healthcare system thrown into turmoil, has previously managed to cope with the initial SARS
The pyrolysis of waste tyres can recycle energy and produce reusable products (oil, Womens Bottoms char and gas).Although there are many reviews in the literature in regard to the pyrolysis characteristics of waste tyres, but this paper critically looked as pyrolysis char as one of the useful product.Its physical characteristics include pore diamet
Catalytic gas sensors are widely used for measuring concentrations of combustible gases to prevent explosive accidents in industrial Dining Chair and domestic environments.The typical structure of the sensitive element of the sensor consists of copyright and catalyst materials, which are in and around a platinum coil.However, the size of the platin
ABSTRACTSix samples of bio-capped copper oxide nanoparticles were made from two bio-waste extracts: Punica granatum L.peels and Psidium guajava Linn.leaves.Extraction methods included soaking in water or hydroethanol and boiling in water.The samples were characterized using FT-IR, XRD, SEM, and TGA.Results showed organic residue capping on CuO nano