نتایج جستجو برای: dust from paved roads or potholes
تعداد نتایج: 7345604 فیلتر نتایج به سال:
Introduction: Road dust is a group of solid particles that are presented in the urban areas and are originated from both natural and human-induced sources. This study aims to determine concentrations of heavy metals in urban dusts in Behbahan to identify their natural or anthropogenic sources. Materials and Methods: In this study, a total of 20 samples were collected from main roads with diffe...
Race conditions Urban and semi-urban parts of the city with both paved and un-paved roads, maximum recorded temperature during the race was 35° Celsius. A prospective descriptive epidemiological analysis of race data of runners presenting with emergencies was done using a standardized patient data collection form given to medical aid providers. Triaging was done according to Canadian triage and...
The SCAMPER mobile system for measuring PM10 emission rates from paved roads was used to characterize a wide variety of in the Phoenix, AZ metropolitan area. Week-long sampling episodes were conducted March, June, September, and December. A 180 km-long route utilized traveled total 18 times. rate measurements made at 5-s resolution over 3200 km with precision approximately 25%. varied by two or...
Normally, road damages can be automatically detected using image and video data from ground survey vehicle system combined with the detection algorithms. However, there are limitations of scales map coordinates when to detect potholes. It has been challenging determine sizes locations This research utilized a mobile mapping system, MMS, collect roads environment classify potholes, other objects...
The growing, global plastic waste crisis is sparking a myriad of solutions from disparate fields. One such end-of-use solution the application for paving roads. This marketed as win-win option waste, use single-use material to pave roads and save money, simultaneously tackle accumulated waste. Paving with occurring globally, but has been especially appealing in south contexts where management i...
in this study, a number of 95 synoptic stations of the country were extracted in a statistical period (1990-2007) in order to identify fog-prone areas and dust storms with vision less than one kilometer along with the dust. then, frequency map of the event, with vision less than one kilometer was provided by spline method in roads network in arc gis environment. also, air cloudy percentage map ...
Driving can be an enjoyable experience, but it quickly turn dangerous when the roads are not properly maintained. Potholes, speed bumps, and objects on road all pose a risk to drivers, especially in poor weather conditions. particular, common problem caused by maintenance, they lead serious accidents. While automobile manufacturers do provide features detect potholes, simple ultrasonic sensor v...
Recent studies have shown that researchers proposed various techniques for Pothole detection using data collected from different parts of the world. Automating pothole will go a long way in providing safe driving road users and intelligent transportation systems. This is not only necessary to guarantee adequate performance, but also adjust drivers’ needs, potentiate their acceptability, ultimat...
Fugitive dust from 18 unsurfaced roadways in Missouri were sampled using a novel cyclonic fugitive dust collector that was designed to obtain suspended bulk samples for analysis. The samples were analyzed for trace metals, Fe and Al, particle sizes, and mineralogy to characterize the similarities and differences between roadways. Thirteen roads were located in the Viburnum Trend (VT) mining dis...
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