Infrared spectroscopy (IR spectroscopy) is an optical technique that detects molecular bond vibrations and rotations upon absorption of infrared light. Because different chemical functional groups ...

THE photoconductive properties of lead sulphide when irradiated by wave-lengths between 1 and 3.5 µ were first utilized as a means of detecting infra-red radiation during the War by the Germans. In ...

Marshall Hargrave is a stock analyst and writer with 10+ years of experience covering stocks and markets, as well as analyzing and valuing companies. Khadija Khartit is a strategy, investment, and ...

Enviro Infra Engineers Limited is engaged in the business of designing, construction, operation and maintenance of water and wastewater treatment plants (WWTPs) and water supply scheme projects (WSSPs ...