نتایج جستجو برای: water erosion prediction project

تعداد نتایج: 1050793  

2016
Peifei Cong Guanghua Yin Jian Gu

Soil erosion is a growing challenge for agricultural production in Northern China. To explore the effect of variation in stubble height and mulching biomass on soil erosion caused by wind, we conducted a field experiment using a quadratic rotation combination design. Results showed that the quantity of straw mulch was the dominant factor affecting soil erosion, and stubble height was of seconda...

2015
Chen Lin Ronghua Ma Bin He Miklas Scholz

Taihu Lake in China is suffering from severe eutrophication partly due to non-point pollution from the watershed. There is an increasing need to identify the regions within the watershed that most contribute to lake water degradation. The selection of appropriate temporal scales and lake indicators is important to identify sensitive watershed regions. This study selected three eutrophic lake ar...

2009
Joseph I. Achebo

This paper clearly explains the use of drift flux models based on Eulerian continuum equations in predicting erosion wear rate in a transmission pipeline. In this case, a pipeline with a diameter of 0.5m was investigated. It was found that there was a large sand particle concentration on the welded parts of the pipe which has affected the internal geometry of the pipe. From physical examination...

Journal: :Frontiers in Marine Science 2023

European coasts are regularly exposed to severe storms that trigger extreme water-level conditions, leading coastal flooding and erosion. Early Warning Systems (EWS) important tools for the increased preparedness response against flood events, hence greatly reducing associated risks. With this objective, a proof-of-concept Coastal Flood Awareness System (ECFAS) was developed in framework of H20...

ژورنال: مهندسی دریا 2018
جلیلی, محمدمهدی, دشتی رحمت آبادی, اصغر, شفیعی, علیرضا, مقدم, محمدحسین,

Prediction of hydrodynamic loads during water impact has great significance in the structural design of vehicle. Impact load of fast crafts with water surface and the slam force of waves on the members of offshore structure is common examples of this phenomenon. There is not any available theoretical tool to exactly handle this complicated phenomenon and the experimental procedures in the labor...

Journal: :Pediatric dentistry 1989
S Beiraghi S Atkins S Rosen S Wilson J Odom M Beck

Thirty-six Sprague Dawley rats, 22 days of age, were divided randomly into three groups of 12 each and housed in a programmable feeder. The three experimental groups received either Coca-Cola (CC), Coca-Cola with calcium lactate (CC-CaL), or distilled water. The programmable feeder was set to deliver 17 equal volumes of fluid per day with each feeding period lasting between 80-90 min. All group...

2016
Yuta Hara Izuru Saizen

Monitoring the surface deformation over the loess hills could help us understand the dynamics of soil erosion, the extent of anthropogenic impacts, and the mitigation methods for the potential damage to local ecosystems, agricultural production, socioeconomic infrastructure, water quality, and air quality in the Loess Plateau and the surrounding areas. The objectives of this study were to compr...

2010
Robert S. Anderson Irina Overeem Cameron W. Wobus

The long-term goal of this project is to quantify the environmental drivers of extremely rapid coastal erosion in the Arctic, and to begin developing predictive models of future rates of coastal erosion resulting from climate change. Our study is focused on the Beaufort Sea coast within the National Petroleum Reserve – Alaska (NPR-A), approximately halfway between Barrow and Prudhoe Bay. We are...

2014
Marjan Padidar Ahmad Jalalian Majid Abdouss Payam Najafi Naser Honarjoo Jaber Fallahzade

Wind erosion is a widespread phenomenon in arid region. The purpose of this study was assessed the capacity of nanoclay to control soil erosion in wind tunnel experiment. The nanoclay isolated from soils was dominant in montmorillonite. A sandy soil from the Khara desert, nearly 100 km East of Isfahan (Central Iran) was used. The soils of this area are structurally unstable and sandy texture ma...

1998
K. N. Potter J. R. Williams F. J. Larney M. S. Bullock

Potter, K. N., Williams, J. R., Larney, F. J. and Bullock, M. S. 1998. Evaluation of EPIC’s wind erosion submodel using data from southern Alberta. Can. J. Soil Sci. 78: 485–492. Wind erosion models have been used to assess policy impacts on soil erosion, but validation of models has been difficult until recently. We evaluated the Environmental Policy Integrated Climate (EPIC) wind erosion subm...

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