نتایج جستجو برای: pile up

تعداد نتایج: 932313  

Journal: :Astronomy and Astrophysics Supplement Series 1999

2003
Andrew N. Youdin

Solid particles in protoplanetary disks that are sufficiently super-solar in metallicity overcome turbulence generated by vertical shear to gravitationally condense into planetesimals. Super-solar metallicities result if solid particles pile up as they migrate starward due to aerodynamic drag. Previous analyses of aerodynamic drift rates that account for mean flow differences between gas and pa...

Journal: :PROCEEDINGS OF HYDRAULIC ENGINEERING 1991

ژورنال: علوم آب و خاک 2021

In regard to wide piers, the pile group rather than single pile is used frequently to bear the loading of the structure in a particular arrangement; piles group composed of only one column of piles in the flow direction has a great effect on supporting the bridge deck. In this study, local scour at a single column arrangement of the piles group made up of four rows of piles characterized by dif...

2014
Elisabeth Debusschere Bert De Coensel Aline Bajek Dick Botteldooren Kris Hostens Jan Vanaverbeke Sofie Vandendriessche Karl Van Ginderdeuren Magda Vincx Steven Degraer Z. Daniel Deng

Impact assessments of offshore wind farm installations and operations on the marine fauna are performed in many countries. Yet, only limited quantitative data on the physiological impact of impulsive sounds on (juvenile) fishes during pile driving of offshore wind farm foundations are available. Our current knowledge on fish injury and mortality due to pile driving is mainly based on laboratory...

2010
Li-na Zhu Bin-shi Xu Hai-dou Wang Cheng-biao Wang

Article history: Received 12 September 2010 Accepted 27 September 2010 In this paper, the residual stress in quenched AISI 1045 steel was measured by a recently developed nanoindentation technique. Depth control mode was adopted to measure the residual stress. It was found that residual compressive stress was generated in the quenched steel. The material around nanoindents exhibits significant ...

Journal: :Journal of the Mechanics and Physics of Solids 2007

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