نتایج جستجو برای: curve road
تعداد نتایج: 198595 فیلتر نتایج به سال:
This study tested for cross-sectional dependencies between carbon dioxide (CO2) emissions and per capita gross domestic product (GDP) among countries in four regions: Africa, America, Asia, and Europe. When cross-sectional correlations are identified in a group of countries, panel data regression with common factors proposed by Pesaran (2006) is used to determine whether the environmental Kuzne...
When a vehicle travels on a road, different parts of vehicle vibrate because of road roughness. This paper proposes a method to predict road roughness based on vertical acceleration using neural networks. To this end, first, the suspension system and road roughness are expressed mathematically. Then, the suspension system model will identified using neural networks. The results of this step sho...
Although it is generally accepted that visual information guides steering, it is still unclear whether a curvature matching strategy or a 'look where you are going' strategy is used while steering through a curved road. The current experiment investigated to what extent the existing models for curve driving also apply to cycling around a curve, and tested the influence of cycling speed on steer...
In this paper, we propose a methodology for validating landslide susceptibility results in the Pinggu district (Beijing, China). A landslide inventory including 169 landslides was prepared, and eight factors correlated to landslides (lithology, tectonic faults, topographic elevation, slope gradient, aspect, slope curvature, land use, and road network) were processed, integrating two techniques,...
جاده به عنوان یکی از پارامترهای درگیر در امر ترابری نقش بسزایی در ایمنی دارد، تا به امروز قریب 75 سال می باشد که در طراحی جاده ها از سرعت طرح استفاده می شود. اما اخیرا نگرانی هایی در مورد استفاده از مقوله سرعت طرح مطرح شده است. این نگرانی ها و تحقیقات انجام شده در این مورد مارا به سمت استفاده از سرعت عملکردی سوق می دهد. در روش سرعت عملکردی، سعی می کنیم رفتار راننده را پیش بینی کنیم تا طرح های ا...
To analyze the influence of distance between tunnels at bridge-tunnel junction in mountainous area on driving safety under crosswind, a vehicle dynamics model is established by Carsim software. Under conditions different speeds (60km/h, 80km/h and 100km/h), wind scales (level 6–9) three alignment combinations (tunnel-straight road-tunnel, tunnel-curving tunnel-the combination straight curves ro...
PROBLEM Conventional low beams headlamps do not provide sufficient illumination for nighttime visibility on curves. METHOD This analytical study evaluated the advantages and disadvantages of several curve-lighting strategies that involve moving one or both low beams by various amounts. Two curve radii were examined for both curve directions, using representative tungsten-halogen and high-inte...
Aqueous Solvation Method for Recombinant Spider Silk Proteins
give access to the through pavements only at limited intervals. Where pavements pass through highly developed areas, I think such service drives will be necessary to overcome constant interference of traffic turning in and out of the property with through traffic. These service drives would not, of course, be improved to nearly as high type as the through pavements. In most cases a surfacing of...
Since the ancient times Iran has always played a significant role in the Transportation Industry due to its strategic position in the silk road that connected Asia to Europe and Middle East to .Ancient Iranians are believed to be the pioneers of land transportation in the world and transportation has always been considered as one of the most ancient and historical Industries in Iran . Nowadays ...
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