A group of researchers from University of Illinois have found in a study that windowless offices had a negative impact on workers health and could cause sleep issues, according to a report by Co. Design.
For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ
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