نتایج جستجو برای: surface profile

تعداد نتایج: 842624  

ژورنال: مهندسی دریا 2016

In this study, two-dimensional flow analysis around cross-section of the surface piercing propeller with a linear profile trailing edge is studied in different Weber numbers. Due to collision of the two-dimensional cross section with surface water, aeration zone is created on the suction side that is heavily impact on the results. The ventilation pattern is a function of the geometrical paramet...

ژورنال: علوم آب و خاک 2002
صلاح کوچک زاده, ,

Side channel spillways have a common usage in conveyance and distribution networks, high dams, water and wastewater treatment plants, and surface drainage networks. A side channel carries spatially varied flow with increasing discharge and their water surface profiles is a main feature in the design process. Usually, the bottom width of the channel is flared in the flow direction and an end sil...

ژورنال: علوم آب و خاک 1998
موسوی, ‌ سیدفرهاد, شریف‌بیان‌الحق, محمدحسین, مصطفی زاده, بهروز ,

To determine the effects of field slope, emitter discharge, irrigation water volume and soil texture on soil moisture profile and soil surface wetted shape from a point source, field data were collected on three different soil types, three emitter discharges (4, 8, and 12 lph), four slopes (0, 2, 5, and 10%), and five irrigation water volumes (10, 20, 30, 40, and 50 liters) with three replicati...

شریف‌بیان‌الحق, محمدحسین, مصطفی زاده, بهروز, موسوی, ‌ سیدفرهاد,

To determine the effects of field slope, emitter discharge, irrigation water volume and soil texture on soil moisture profile and soil surface wetted shape from a point source, field data were collected on three different soil types, three emitter discharges (4, 8, and 12 lph), four slopes (0, 2, 5, and 10%), and five irrigation water volumes (10, 20, 30, 40, and 50 liters) with three replicati...

صلاح کوچک زاده, ,

Side channel spillways have a common usage in conveyance and distribution networks, high dams, water and wastewater treatment plants, and surface drainage networks. A side channel carries spatially varied flow with increasing discharge and their water surface profiles is a main feature in the design process. Usually, the bottom width of the channel is flared in the flow direction and an end sil...

Journal: : 2023

Light-assisted etching is a processing method that enables selective by light illumination onto semiconductors in an etchant. In this study, we propose the cylindrical surface forming technique light-assisting using leaking from glass fibers. When propagating fiber was placed contact with semiconductor wafer, wafer vicinity of area exposed. addition, immersing contacted etchant, only exposed ex...

Journal: :international journal of iron & steel society of iran 2015
m. irani r. amini najafabadi t. dallali isfahani

precision forging process is widely used for the production of spur gears due to its advantages such asimproved strength and surface finish, little waste of materials and reduction in the machining time ofthe gear. an important aspect of precision forging process is the load required to perform the processsuccessfully and design the forging tools. in this research, a new kinematically admissibl...

2011
Yifei Mo Shyue Ping Ong Gerbrand Ceder

The lithium-air chemistry is an interesting candidate for the next-generation batteries with high specific energy. However, this new battery technology is facing substantial challenges, such as a high overpotential upon charging, poor reversibility, and low power density. Using first-principles calculations, we study the oxygen evolution reaction (OER) on the low-index surfaces of lithium perox...

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