Tucson’s skies are slightly darker thanks to the completed streetlight conversion project, according to a study by the Tucson-based International Dark-Sky Association. The study, however, was limited ...

Abstract: This study investigates the harmonic emissions, photometric performance, and techno-economic implications of retrofitting T8 fluorescent tubes with LED alternatives under various ballast ...

TutorTrac is a web-based application you can use to schedule tutoring appointments at Case Western Reserve University. You can schedule up to six tutoring appointments in a seven-day period. **Note, ...

Brainiac75] is a fan of fiber optic lamps, except for one thing—they’re often remarkably dim. Thus, they set out to hack the technology to deliver terrifying amounts of light while still ...

Abstract: A new type of high-efficiency small angle ultraviolet packaging device is designed in this paper to address the issue that the efficiency of medium pressure mercury lamp ultraviolet ...

Recent studies identified a population of multipotent progenitor cells, the SP cells, which are isolated from adult tissues. The unique capacity of stem/progenitors to efflux the Hoechst 33342 dye, a ...