The correlated color temperature (CCT) tunable white-light LED cluster with extrahigh color rendering property has been found by simulation and fabricated, which consists of three WW LEDs (CCT = 3183 K), one red LED (634.1 nm), one green LED (513.9 nm), and one blue LED (456.2 nm). The experimental results show that this cluster can realize the CCT tunable white-lights with a color rendering in...

Careers follows p 614 Our Careers section shines the light on two researchers who are leading the way in their respective fields. Professor Helena Teede is an endocrinologist clinician–researcher who led a team that developed the world’s first evidence-based guidelines for polycystic ovary syndrome. She is professor of women’s health at Monash University in Melbourne and director of the Monash ...

Unlike a conventional white light source that emits a continuous and broad spectrum of light, the dual wavelength white light emitting diode (LED) generates white light by mixing blue and yellow lights, so there are two distinct peaks in its intensity spectrum. Prior works had shown that the spectral property of the dual wavelength white LED can affect the vertical scanning interferometry negat...

The horticulture sector has been directed by European guidelines to improve its practices related environmental sustainability. Moreover, the practice of in urban areas is increasing since it provides fresh products that are locally produced. At same time, needs implement circular economy approaches and energy-efficient models. Therefore, address these issues, this study investigated effects an...

In this paper, we present a robust and accurate system for outdoor (as well as indoor) face recognition, based on a recently developed enhanced near-infrared (ENIR) imaging device. Using a narrow band NIR laser generator instead of LED lights for active frontal illumination, the ENIR device can provide face images of good quality even under sunlight. Experiments show that the ENIR system perfor...

A stationary lift net requires an effective fishing light attractor. The intensity and distribution of are important factors to increase the effectiveness attractors. This study aimed probe its effect on research employed a descriptive-comparative method by comparing LED lights with kerosene lights. results showed that concentration fish school in was at depth 4–10 m 1x10-8– 10x10-8 W/cm2, whil...