نتایج جستجو برای: thermal lighting integration
تعداد نتایج: 452105 فیلتر نتایج به سال:
this study was conducted to compare the effects of different illumination programs on the cellular and humoral immune system using 320 one day–old male broilers (arian 386) in a completely randomized design of 8 replications (10 birds each). the four assayed lighting schedules were comprised of: 1- continuous lighting (control), 2- decrease then sudden increase of lighting, 3- decreasing-gradua...
Mediterranean greenhouses for cultivation of Phalaenopsis orchids reproduce the warm, humid, and shaded environment of tropical underbrush. Heating represents the highest production cost, due to the high thermal requirements and the long unproductive phase of juvenility, in which plants attain the critical size for flowering. Our researches aimed to investigate the effect of plant size, tempera...
Thermal energy storage and solar radiation management are crucial to improve the sustainability efficiency of buildings. Compared with implementation phase change materials (PCMs) in opaque components, saving potential incorporating PCMs transparent glazing windows is much less studied not well understood. Here we present a comprehensive parametric study novel PCM for building focus on optimizi...
Introduction: Few studies were conducted to determine the effects of lighting on cognitive performance. However, they could not reach a decisive conclusion. This study investigated cognitive performance of university students exposed to different levels of lighting under laboratory conditions. Methods: In this experimental study, 33 subjects (age range 19-26 years) performed cognitive tests....
Introduction: In an educational environment, the quality of vision is integral to educational progress. Creating visual comfort and increasing efficiency and the desire to study are among the benefits of adjusting the lighting in classrooms and preventing visual impairment in the students. The present study was conducted to evaluate the degree of internal lighting in girls' schools across ...
for healthy lighting, daily lighting that considers both visible light and near-infrared (NIR) is necessary. However, at ∼900 nm, the extensively used solar-like phosphor-converted light-emitting diodes (pc-LEDs) are limited by a lack of high-performance NIR luminescent materials. We report broadband phosphor Sr2ScSbO6:Cr3+ with double perovskite-type structure, thus simultaneously demonstratin...
Background & Objectives: Desirable and ergonomic lighting in the workplaces has a significant impact on the visual effects and improve the efficiency and productivity of employees. This study aims to evaluate the lighting system and feasibility of improving the artificial lighting system for comfort lighting in the workshop of the Fourth South Pars Gas Refinery. Methods: In this descriptive-...
Public lighting networks are constructed and maintained to provide social security and traffic safety. Due to the expansion of cities, the development in public lighting is inevitable. In addition to new investment, the public lighting service and maintenance program imposes high costs on distribution companies. Since performance assessment methods focus on a combination of key performance indi...
A concept of virtual subspace is introduced for realizing a robust face recognition independent of the lighting conditions. The virtual subspace is a paradoxical concept because it can be constructed even if only one image is taken. Furthermore, the virtual subspace is gradually converged to the real subspace when face images are subsequently taken. The virtual subspace is defined as an eigensp...
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