نتایج جستجو برای: erosion hazard index
تعداد نتایج: 482333 فیلتر نتایج به سال:
Collision risk assessment is crucial for autonomous ships to identify risks and make decisions collision avoidance. In this paper, a field theory-based navel algorithm proposed define describe the of ship collision. Based on theory asymmetric Gaussian function, constructed, potential used characterize navigational hazard index. The effectiveness superiority are verified through study cases. res...
Extended Abstract Introduction: Gully erosion is the most severe type of water erosion, which causes large damage in the watersheds. To determine the risk of this type of erosion, it is necessary to estimate its severity and specify the distribution of the risk of erosion in the watershed. One of the models used to estimate the gully erosion is REGEM model, but accurate estimation of erosion r...
BACKGROUND Outcome in stroke trials is often based on a 3-month modified Rankin scale (mRS). How 3-month mRS relates to longer-term outcomes will depend on late recovery, delayed stroke-related deaths, recurrent strokes, and nonstroke deaths. We evaluated 3-month mRS and death/disability at 1 and 5 years in a population-based cohort study. METHODS AND RESULTS In 3-month survivors of ischemic ...
OBJECTIVE The aim of this study was to assess the prevalence and severity of dental erosion among 12-year-old schoolchildren in Joaçaba, southern Brazil, and to compare prevalence between boys and girls, and between public and private school students. METHODS A cross-sectional study was carried out involving all of the municipality's 499, 12-year-old schoolchildren. The dental erosion index p...
Introduction: More than 168 countries face the phenomenon of land degradation and desertification. Land use changing and more exploitation of nature's potential in arid and semiarid ecosystems over the past three decades have increased the trend of desertification phenomena in these ecosystems. Deserts are dynamic ecosystems that are constantly evolving. Deserts are dynamic ecosystems that are ...
Prioritization of watershed basins includes classification of sub-basins on the basis of the existing conditions and erosion intensity, which ultimately leads to protective operations and watershed management in more significant and susceptible sub-basins. In this research, in order to prioritize Ghezel Owzan-Sefidrud sub-basins against sensitivity to erosion, linear and form-based morphometric...
STATEMENT OF PROBLEM The cause of dental erosion may be difficult to establish because of its many presentations. Determination of the cause is an important aspect of diagnosis before extensive prosthodontic rehabilitation. PURPOSE This cross-sectional study evaluated the association between loss of tooth structure as a result of dental erosion and gastroesophageal reflux disease. MATERIAL ...
Agricultural residues have been identified as a significant potential resource for bioenergy production, but serious questions remain about the sustainability of harvesting residues. Agricultural residues play an important role in limiting soil erosion from wind and water and in maintaining soil organic carbon. Because of this, multiple factors must be considered when assessing sustainable resi...
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