Lighting plays a major role in photography. Professional photographers use elaborate installations to light their subjects and achieve sophisticated styles. However, lighting moving subjects performing dynamic tasks presents significant challenges and requires expensive manual intervention. A skilled additional assistant might be needed to reposition lights as the subject changes pose or moves,...

background: increasing of oxygen consumption in fast-growing broiler chickens is associated with the more pronounced occurrence of right ventricular hypertrophy and ascites. while, rearing of susceptible chickens in dark condition could reduce the metabolic rate of birds and hence the incidence of ascites. objectives: the present study was designed to investigate a comparative study on the infl...

introduction preterm infants are exposed to irregular light for several weeks or months in the neonatal intensive-care unit (nicu). this lack of maternal entrainment, the exposure to irregular extrauterine lighting and care in the nursery may contribute to the disturbances in body temperature, sleep and physiological changes that are commonly experienced by preterm infants. materials and method...

results the results show the artificial lighting obtained by difference methods of the overall lighting from natural lighting in closed blinds mode equal to 266 lux and night lighting 283.5 lux that they have no significant differences with each other (p = 0.269). as well as the illumination intensity obtained from a standard grid method is 283.5 lux and illumination intensity based on luminair...

The Remote Device Management (RDM) protocol is used to manage the devices in the lighting control networks. RDM provides bi-directional communications between a controller and many lighting devices over the DMX512-A network. In RDM, using a simple binary search scheme, which is based on the 48-bit unique ID (UID) of each device, discovers the lighting devices. However, the existing binary searc...

Using a victim survey, the prevalence and incidence of crime were measured 12 months before and 12 months after the installation of improved street lighting in an experimental area of Stoke-on-Trent, U.K.; and at the same times in adjacent and control areas where the street lighting remained unchanged. The prevalence of crime decreased by 26% in the experimental area and by 21% in the adjacent ...

The lighting industry has been comprehensively developed and deployed during recent decades, especially with the rise of LED technology. As a related technique field, lighting control system has also draw more and more attention; therefore intelligent lighting control systems are needed. Nowadays, several famous lighting companies are working on a next generation of lighting control system, whi...

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, ...

Abstract—In this paper, we study human body detecting using PIR sensor and design LED control system based on star network topology of Zigbee. The human body detecting information using PIR sensor is transmitted to the status monitoring system, and the management system controls the LED lighting devices based on transmitted information. The information and control signals are transmitted using ...