Results 21 to 30 of about 2,125 (211)
علوم آب و خاک, 2022 Bed shear stress is one of the most important hydraulic parameters to determine the amount of bed and suspended load and the bed and bank scouring in rivers. Bed shear stress depends on bedforms (ripples, dunes, and anti-dunes) in alluvial rivers.
M. Heydari +2 more
doaj
Frequency pattern of turbulent flow and sediment entrainment over ripples using image processing [PDF]
Hydrology and Earth System Sciences, 2012 River channel change and bed scourings are source of major environmental problem for fish and aquatic habitat. The bed form such as ripples and dunes is the result of an interaction between turbulent flow structure and sediment particles at the bed.
A. Keshavarzi, J. Ball, H. Nabavi
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Subglacial bed form morphology controlled by ice speed and sediment thickness
Geophysical Research Letters, 2016 Subglacial bed forms (drumlins, ribbed moraines, and megascale glacial lineations) are enigmatic repetitive flow‐parallel and flow‐transverse landforms common in glaciated landscapes.
Thomas E. Barchyn +3 more
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Shui kexue jinzhan, 2019 Numerical modelling of the bottom boundary layer (BBL) is an important tool for sediment transport analysis. In order to study the sediment movement in the wave-current BBL,an intra-wave process based 1DV model was established for silt-sand sediment ...
ZUO Liqin, LU Yongjun, ZHU Hao
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Morphodynamic model of the lower Yellow River: flux or entrainment form for sediment mass conservation? [PDF]
Earth Surface Dynamics, 2018 Sediment mass conservation is a key factor that constrains river morphodynamic processes. In most models of river morphodynamics, sediment mass conservation is described by the Exner equation, which may take various forms depending on the problem in ...
C. An +7 more
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Journal of Hydrology and Hydromechanics, 2022 This paper investigates the incipient motion of sediment particles under non-uniform flow in river and laboratory. In rivers, the non-uniform flow is often observed due to the presence of various bed forms.
Dodangeh Esmaeil, Afzalimehr Hossein
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Study on relocation behavior of debris bed by improved bottom gas-injection experimental method
Nuclear Engineering and Technology, 2021 During the core disruptive accident (CDA) of sodium-cooled fast reactor (SFR), the molten fuel and steel are solidified into debris particles, which form debris bed in the lower plenum.
Chunming Teng, Bin Zhang, Jianqiang Shan
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Fluidized Bed Straw Pellets Combustion with Minimal Emissions of Carbon Monoxide
Chemical Engineering Transactions, 2016 The type of air entry distribution is essential in the formation of hydrodynamic structures of fluidized bed. The present study is aimed to form a hydrodynamic structure of fluidized bed optimal for burning low-grade solids fuels.
R. Isemin +5 more
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Assessment of Estimation Methods ForStage-Discharge Rating Curve in Rippled Bed Rivers
مجله آب و خاک, 2016 Introduction: Interactionbetweenwater flow characteristics andthe bed erodibilityplays an important role in sediment transport process. In order to reach stability, rivers with deposition or bottom erosion make a different bed form in the riverbed.
P. Maleki +3 more
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The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review
Pediatric Blood &Cancer, EarlyView.ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo +5 more
wiley +1 more source