The visible light communication (VLC) refers to the communication technology which utilizes the visible light source as a signal transmitter, the air as a transmission medium, and the appropriate photodiode as a signal receiving component. The visible light communication technology has a short history compared with other communication technology, for example, public old telephone service, Ether...

Understanding the 3D shape information is a fundamental problem in computer vision. Among various shape estimation technology, photometric stereo is highlighted for its ability to produce detailed surface normal direction at its image resolution. It takes a set of images captured under varying illumination and a fixed viewpoint as input. Traditional photometric stereo assumes the Lambertian ref...

this study was conducted to determine the effects of increasing lighting after peak production on eggs production and hatchable eggs in broiler breeder hubbard f15. in this research we used from 4 growing saloons, that in per saloons were 5250 hubbards broiler breeder hens. in this experiment we used by line design way of glm for analysed data, that we considered the effects of two parameters, ...

Up to date methods and approaches in face identification field heavily depend on facial characteristics; such as location of eyes, length of nose and mouth. Ambient lightings have much influenced the visibility of these facial characteristics; where the visibility varies significantly with inconsistent external light source. In this paper, we present an extended framework for face identificatio...

As a novel class of inorganic phosphors, oxynitride and nitride luminescent materials have received considerable attention because of their potential applications in solid-state lightings and displays. In this review we focus on recent developments in the preparation, crystal structure, luminescence and applications of silicon-based oxynitride and nitride phosphors for white light-emitting diod...

In response to the Minamata Convention on Mercury, effective 16 August 2017, Taiwan government in recent years started implement sustainable material management of mercury-containing waste and articles. This was completed by a cross-ministerial collaboration for preventing adverse effects mercury human health environment, based multimedia approach. The legislative or regulatory frameworks contr...

As issues of environment and energy draw keen interest around the globe due to such problems as global warming and the energy crisis, LED with high optical efficiency is brought to the fore as the next generation lighting. In addition, as the national income level gets higher and life expectancy is extended, interest in the enhancement of life quality is increasing. Accordingly, the trend of li...