نتایج جستجو برای: vehicle 5
تعداد نتایج: 1318143 فیلتر نتایج به سال:
background: hazardous chemicals, which give detrimental effect to the central nervous system, are widely used in the vehicle services industry. the use of vibrotactile perception threshold (vpt) as a screening tool for chemical exposure is new in developing country such as malaysia. therefore, this study determined the relationship between vpt and chemical exposure among vehicle service technic...
background: although visual impairment of drivers is a very important risk factor for car accident, a few published papers have explored this issue in iran. this study aims to evaluate the visual fitness of public vehicle drivers in kerman province, southeast of iran. methods: a total of 4,003 public vehicle drivers were examined by one ophthalmologist for visual fitness in kerman province betw...
this paper presents the prediction of vehicle's velocity time series using neural networks. for this purpose, driving data is firstly collected in real world traffic conditions in the city of tehran using advance vehicle location devices installed on private cars. a multi-layer perceptron network is then designed for driving time series forecasting. in addition, the results of this study a...
Background: Hawthorn species decreases blood pressure and relaxes precontracted vessels. This study aimed at examining the antihypertensive effect and related mechanisms of hydroalcoholic extract of Crataegus azarolus subspecies aronia fruit in rats with renovascular hypertension.Methods: Six groups of male Sprague-Dawley rats, each containing 6 to 8 rats, were studied. The groups comprised of ...
راحتی سفر (ride comfort) در خودرو ها بستگی به احساس سرنشیان داخل وسیله نقلیه نسبت به ارتعاشات وارد شده بر خودرو دارد. ارتعاشات بدنه خودرو ناشی از عوامل گوناگونی مثل ناهمواری های سطح جاده، نیروهای آیرودینامیکی، ارتعاشات موتور و نابالانسی چرخ ها می تواند باشد[1].عموما ناهمواری های سطح جاده منبع اصلی ارتعاشات ایجاد شده بر روی وسیله نقلیه بوده و ضربه های اتفاقی ناشی از ناهمواری های جاده، خودرو را د...
BACKGROUND AND PURPOSE Endothelial nitric oxide synthase (eNOS) activity is decreased after subarachnoid hemorrhage (SAH). Simvastatin increases eNOS activity. We hypothesized that simvastatin would increase eNOS protein and ameliorate SAH-induced cerebral vasospasm. METHODS Mice were treated with subcutaneous simvastatin or vehicle for 14 days and then subjected to endovascular perforation o...
Potential increases in wind erosion that might be brought about by military vehicles traveling off-road during training are of concern to the U.S. military because wind erosion and vehicle dust emissions contribute to land and air quality degradation and can cause adverse effects on respiratory health. Field studies were conducted in the summer of 2012 at Fort Benning, Georgia, to assess the ef...
introduction: learning and memory deficits in some diseases are new subjects of research. bupropion, as dopamine and noradrenaline reuptake inhibitor and an antidepressant agent, has been previously shown to affect learning and memory processes. this study was designed to test the effect of intra-hippocompal bupropion injection on active avoidance learning task in rats. methods: adult male wist...
Introduction: Learning and memory deficits in some diseases are new subjects of research. Bupropion, as dopamine and noradrenaline reuptake inhibitor and an antidepressant agent, has been previously shown to affect learning and memory processes. This study was designed to test the effect of intra-hippocompal bupropion injection on active avoidance learning task in rats. Methods: Adult male ...
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