Good daylighting design in buildings not only provides a comfortable luminous environment, but also delivers energy savings and comfortable and healthy environments for building occupants. The importance of using daylight in educational buildings is because of the synchrony of operating hours of the school and daylight plenitude the sky. Daylight improves environmental quality and saves energy ...

In this paper, on the basis of Green Comprehensive Plan at Hakim Sabzevari University of Sabzevar, Iran, the application of active solar  systems for the dining hall is evaluated. The impact of solar systems and energy management designed for this hall on energy consumption and environment was investigated.This study measures the electricity and thermal energy consumption of the dining hall , p...

Computing irradiance analytically from polygonal luminaires in polygonal environments has proven effective for direct lighting applications in diffuse radiosity environments. Methods for analytic integration have traditionally used edge-based solutions to the irradiance integral; our previous work presented a vertex-based analytic solution, allowing irradiance to be computed incrementally by ra...

Abstract Research have shown that the correct integration of daylight and electric lighting reduces energy use in buildings, while improving visual comfort. Smart shading systems, especially those electrically controlled, play an important role to control solar radiation. Similarly, smart dimmable/tunable can help adjust artificial light real users’ needs. This paper presents preliminary result...

A bstract In many problems in particle cosmology, interaction rates are dominated by 2 ? scatterings, or get a substantial contribution from them, given that 1 and 3 reactions phase-space suppressed. We describe an algorithm to represent, regularize, evaluate class of thermal for general momenta, masses, chemical potentials, helicity projections. key ingredient is automated inclusion virtual co...

Keywords: Accelerated degradation test HPWLED Useful lifetime Bi-exponential model Degradation-data-driven method. a b s t r a c t An accelerated degradation test is used to analyze the useful lifetime of high-power white light-emitting diodes (HPWLEDs) as the point at which the light output declines to 70% of the initial flux in lumens, called L 70 In this study, the degradation-data-driven me...