نتایج جستجو برای: outdoor dose
تعداد نتایج: 330838 فیلتر نتایج به سال:
With the economic growth and globalization, a great deal of airports are being or planned to be constructed retrofitted in China. The air quality airport terminal buildings has not been studied as in-depth ambient quality. Due its unique architectural operational characteristics, have individual performance indoor contribution outdoor particulate matter (PM) environment passengers’ exposure PM ...
background: in vivo dosimetry is a method for estimation of overall error in the delivered dose to the patients at the end of radiotherapy process. in this research, two methods for target dose calculation were evaluated on midline and central axis of photon beams in in vivo dosimetry of thorax fields. materials and methods: entrance and exit doses for anterior and lateral fields of thorax were...
Time spent outdoors is associated with higher levels of physical activity. To date, correlates of independent outdoor play have not been investigated. This study aimed to identify potential demographic, behavioural, environmental and social correlates of children's independent outdoor play. Data were from the Millennium Cohort Study when children were aged 7 years. Parents reported whether thei...
BACKGROUND Outdoor secondhand smoke (SHS) concentrations are usually lower than indoor concentrations, yet some studies have shown that outdoor SHS levels could be comparable to indoor levels under specific conditions. The main objectives of this study were to assess levels of SHS exposure in terraces and other outdoor areas of hospitality venues and to evaluate their potential displacement to ...
This study presents indoor/outdoor PM2.5 and PM10 concentrations measured during winter and summer in 15 homes in Kocaeli, which is one of the most industrialized areas in Turkey. Indoor and outdoor PM2.5 and PM10 mass concentrations and elemental composition were determined using an X-ray fluorescence spectrometer. Quantitative information was obtained on mass concentrations and other characte...
Inhaling secondhand cigarette smoke (SHS), also known as passive smoking, can cause cancer and respiratory and cardiovascular disease. Indoor smoking is banned at many public places and worksites; at others, smoking areas have been moved outdoors. But is keeping cigarette smoke outdoors enough to dissipate the health risks associated with SHS exposure? A review in this issue of EHP explores the...
Recently, the place of adventure activities in outdoor education has become contentious, particularly in Australia and the United Kingdom. It can be challenging for outdoor leaders to incorporate adventure activities with attempts to foster environmental awareness, understanding and action. Recently, some authors have suggested practitioners eliminate the tension by removing adventure activitie...
Background and purpose: Ëxposure to respirable particles (PM2.5) causes adverse health effects, such as: respiratory and cardiovascular diseases and eventually death. Çonsidering congested traffic flow in the city center of Sari, it could be expected that exposure of citizens to particulate air pollution would be high. The aim of this study was to survey the concentrations of PM2.5 indoor and o...
We describe the CMU Sidewalk Navigation System, which can drive a vehicle in the outdoor environment of the CMU campus. The system includes all modules necessary for outdoor navigation .. modules for route planning, local path planning, vehicle driving, perception, and map data. The perception module uses sensor fusion with color and rage data to analyze complex outdoor scenes accurately and ef...
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