On paper, LED bulbs are made to last for at least several years thanks to their low energy needs. I wanted to know why that doesn't always work out, so I talked to installers and LED manufacturers to ...

The DAWN ® multi-angle light scattering (MALS) detector connects to most HPLC, GPC, FPLC or FFF separation systems to determine absolute molecular weight, size, and conformation of peptides, proteins, ...

Abstract: A system for measuring optical proximity based on reflection of modulated light is presented. Its novel input stage topology comprising an ac coupled TIA and a two stage dc rejection circuit ...

Abstract: Obstructive sleep apnoea is one of the most common sleep disorders, which is characterized by the repetitive cessations of respiratory flow during sleep. This paper describes an alternative ...