نتایج جستجو برای: vehicular pollution modeling
تعداد نتایج: 464529 فیلتر نتایج به سال:
BACKGROUND Numerous epidemiological studies have shown that air pollution due to both industry and heavy traffic has short- and long-term effects on health. The study was carried out in an industrial area with heavy urban and motorway traffic in the Province of Genoa (Italy). METHODS The study was carried out from June 2005 to July 2008. An epidemiologic study was conducted by monitoring an e...
Noise pollution is a significant environmental problem in many rapidly urbanizing areas of Orissa, India. Transportation sector is one of the major contributors to noise in these areas. The present study is an attempt to estimate traffic noise pollution at five places on the way from Vyasa Vihar Campus to Gyan Vigyan Vihar Campus of Fakir Mohan University, Balasore, Orissa. The sources of noise...
this paper presents results analyses of specific potential blowout scenarios for subsea oilpipelines between the coast of mainland of iran and khark island in the persian gulf. the analyses have been carried out with the sintef oil spill contingency and response (oscar) 3-dimensional model system.some hypothetical three-day blowout scenarios with light and heavy iranian oil have been investigat...
A framework is proposed for long-term vehicular channel simulation based on the vector time-frequency autoregressive (VTFAR) model a sparse parametric description of nonstationary multivariate random processes. Based vehicle-to-infrastructure tunnel measurements, we estimate VTFAR parameters and validate by comparing non-parametric spectra measured in terms delay spread stationarity time. In ad...
Although vehicular sensing where mobile users in vehicles continuously gather, process, and share location-sensitive and context-sensitive sensor data (e.g., street images, road condition, traffic flow) is emerging, little effort has been investigated in a model-based energy-efficient network paradigm of sensor information sharing in vehicular environments. Upon these optimization frameworks, a...
This paper explains trajectory⁃based data forwarding schemes for multihop data delivery in vehicular networks where the trajectory is the GPS navigation path for driving in a road network. Nowadays, GPS⁃based navigation is popular with drivers either for efficient driv⁃ ing in unfamiliar road networks or for a better route, even in familiar road networks with heavy traffic. In this paper, we de...
Concentrations, composition and sources apportionment of 16 polycyclic aromatic hydrocarbons (PAHs) were investigated in the edible bivalves (oysters, mussels and clams) and sipunculida samples collected from coastal areas of Beibu Gulf, China. The results showed that the total PAH concentrations ranged from 36.4 to 403.3 ng/g dry weight. Compared with other bays and coastal areas, current cont...
Air pollution is exacerbated near heavy traffic roads in cities. Air pollution concentration and composition vary by region and depend on urban-rural gradients. The aim of this study was to evaluate the distribution of air pollution in areas of varying population densities and to compare plant biomonitoring with an established biomarker of human exposure to traffic-related air pollution in chil...
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