نتایج جستجو برای: erosion risk
تعداد نتایج: 971175 فیلتر نتایج به سال:
Propeller cavitation erosion prediction at an early design stage is becoming more and important since it one of the key constraints in search for maximum propeller efficiency. Despite experience from model tests, research on actual ship scale very limited. In this study, attempt made to assess risk blades a full-scale steerable thruster tug boat. Pressure side was detected board three different...
Introduction: Wind erosion and the influx of sandy soils to economic facilities and biological resources are one of the main problems in the country. 14 provinces, located in arid and semi-arid regions, face wind erosion. Wind erosion and the influx of sandy soils are two important indicators in the occurrence of desertification and a serious threat to arid areas. The best and lasting way to pr...
This study investigates the application of models traditionally used to estimate erosion and sediment deposition to assess the potential risk of water quality impairment resulting from metal-bearing materials related to mining and mineralization. An integrated watershed analysis using Geographic Information Systems (GIS) based tools was undertaken to examine erosion and sediment transport chara...
از آنجا که پدیده های واقعی همواره فازی، نادقیق و مبهم هستند. آنچه در ارزیابی این پدیده ها مهم به نظر می رسد امتیازدهی صحیح شاخص ها به منظور دستیابی به نتایج قابل استناد می باشد. فرسایش بادی نیز به عنوان یک پدیده واقعی واجد شاخص هایی هست که ساختار کیفی یا ساختار نامشخصی دارند که نمی توانند به دقت اندازه گیری شوند. در چنین مواردی به منظور دستیابی به ماتریس ارزشیابی می توان از اعداد فازی استفاده ک...
Background Polygenic risk scores (PRS) are widely used to estimate disease risks and predict clinical outcomes. However, differences exist among PRS derived from genome-wide association study (GWAS) of ethnicities across the globe. Objectives We aimed build up for predicting development rheumatoid arthritis (RA) in a Taiwanese population investigate whether RA may be associated with bone erosio...
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