نتایج جستجو برای: 1.0 and 1.5 mm)
تعداد نتایج: 17003717 فیلتر نتایج به سال:
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
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a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...
MM 46.1 Thu 10:15 H 1029 SiC formation in carbon nanotubes grown from permalloy catalyst particles — ∙Anja Kießling1, Darius Pohl1, Christine Täschner1, Rolf Erni2, Mark Hermann Rümmeli1, Ludwig Schultz1, and Bernd Rellinghaus1 — 1IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany — 2Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Düb...
In the present study, response of Pistachio (Pistacia vera L.) on nitrate reductase activity, some biochemical characters and ions accumulation to salinity were evaluated. Salinity treatments (0, 75, 150 mM NaCl) and potassium nitrate (0, 10, 15 mM) were imposed and sampling were done 100 days after treatments. Results indicated that sodium chloride at 75 mM plus 10 mM potassium nitrate resulte...
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