نتایج جستجو برای: roughened bed

تعداد نتایج: 49912  

Journal: :Surface & Coatings Technology 2021

Polydopamine (PDA)/polytetrafluoroethylene (PTFE) + 0.25 wt% graphite particle (GrP) coatings of three different thicknesses were deposited on roughened 60NiTi substrates. Their tribological properties evaluated by coating durability, wear progression, and scratch tests. It was found that the thicker have longer life, but life not proportional to thickness. The thickness affected transfer film ...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 1988

2011
Chaeshin Chu Junehawk Lee Dong Hoon Choi Seung-Ki Youn Jong-Koo Lee

OBJECTIVES Our aim was to evaluate Korea's Pandemic Influenza Preparedness Plan. METHODS We conducted a sensitivity analysis on the expected number of outpatients and hospital bed occupancy, with 1,000,000 parameter combinations, in a situation of pandemic influenza, using the mathematical simulation program InfluSim. RESULTS Given the available resources in Korea, antiviral treatment and s...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
masoud aghajani h. müller steinhagen mohammad jamialahmadi

the excellent performance of fluidized bed heat exchangers is due to the interaction between particles and heat transfer surface and to the mixing effects in the viscous sublayer. in this paper, the results of experimental investigations on heat transfer for a wide range of newtonian and non-newtonian (shear-thinning power law) fluids are presented. new design equations have been developed for ...

Journal: :آب و خاک 0
اسماعیلی اسماعیلی کاشفی پور کاشفی پور شفاعی بجستان شفاعی بجستان

abstract for investigating the effect of bed form in alluvial channels on the amount of bed load transport, a set of experiments was carried out in a tilting flume under unsteady flow conditions (hydrograph). the produced hydrographs were in triangular form with a maximum discharge of 30 to 45 lit/s/m. three size of sediment particles were used with equal to 1.5, 2.1 and 3.0mm, clear water with...

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