نتایج جستجو برای: Carbon monoxide
تعداد نتایج: 282315 فیلتر نتایج به سال:
bachground: acute carbon monoxide poisoning (cop) is a common problem that occurs more frequently during winter and leads to serious complications. in our poisoning referral center, the incidence and complications of acute cop has not been evaluated previously. therefore we designed a study to evaluate its significance in our center. methods & materials: 111 cases of acute cop admitted during f...
the activation of carbon monoxide by oxygen on mg(100) surface has been investigated by x-ray photoelectron spectroscopy (xps). carbon monoxide is only weakly adsorbed (dispersion-type forces) on a magnesium surface. the xps result has shown that the dissociation of carbon monoxide leading to the formation of a metastable surface carbonate species occurs through the participation of an oxygen s...
background and aim: carbon monoxide is colorless and odorless gas. in high concentrations, co is deadly poisonous and in low concentrations can cause fatigue, headache, dizziness and seizures. carbon monoxide has a high affinity to combines hemoglobin which can decrease oxygen capacity in blood. to address this problem, human body begins to produce red blood cells, this can increases blood visc...
perhaps the more interesting nanostructures with large application potential, from transistors to probes, are carbon nanotubes. one of the most widely uses of these nanostructures are their applications as gas detector, which is an important application in the field se of environmental technologies. the present work studies the adsorption of carbon monoxide on a (6, 6) armchair carbon nanotube ...
background: knowing the pattern of carbon monoxide (co) poisoning in each region is vital for enhanced health planning. this study was designed to evaluate the epidemiologic pattern of unintentional acute co poisoning in major cities of fars province, southwest of iran. methods: this one-year cross-sectional study was carried out on unintentional co poisoning incidents in fars province, iran, ...
Background and aimsCarbon monoxide poisoning is a major cause of mortality due to gasinhalation. It is more prevalent in winter, because of poor indoor ventilation. The purpose of ourstudy was to evaluate exhaled carbon monoxide of students and to estimate their exposure to this gas.MethodsThis cross-sectional study was performed in winter 2008. The exhaled carbonmonoxide level of 184 students ...
background: forecasting of air pollutants has become a popular topic of environmental research today. for this purpose, the artificial neural network (aan) technique is widely used as a reliable method for forecasting air pollutants in urban areas. on the other hand, the evolutionary polynomial regression (epr) model has recently been used as a forecasting tool in some environmental issues. in ...
background: carbon monoxide (co) poisoning may lead to hypoxic/anoxic injury and eventually ischemic encephalopathy. magnetic resonance imaging (mri) has a well-recognized role in assessment of the severity of brain damage caused by co poisoning. in this study, we aimed to present and analyze the structural abnormalities in the brain mri and especially in diffusion weighted mri (dwi) images in ...
Considering the vital importance of air and the increasing trace of its contaminating factors, it is necessary to study the contaminating factors in order to be aware of the existing situation. The phenomenon of air pollution is one of the most important problems in many parts of Iran, due to several reasons, increasing the amount of it day by day. Carbon monoxide is one of the most dangerous p...
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