نتایج جستجو برای: surface discharge

تعداد نتایج: 728988  

Present work aims at multi-mechanical surface treatment of Ti-6Al-4V based-miniplate implant manufactured by electrical discharge machining (EDM) for biomedical use. Mechanical surface treatment consists of consequent use of ultrasonic cleaning, rotary tumbler polishing, and brushing. Surface layers are analyzed employing scanning electron microscopy and energy dispersive X-ray spectroscopy. Al...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
mahtab safari shad department of natural resource, sari agriculture and natural resource university mahmoud habibnejad roshan alireza ildoromi

according to recent studies, about 60 percent of surface waters and 57 percent ground waters are located in snowy zones in iran. in most areas of northern hemisphere and alpine environment areas, snow melt lead to the maximum instantaneous flow rate and is an important part of annual discharge. the present study investigated the effect of snowmelt on the surface waters and ground waters in baha...

ژورنال: علوم آب و خاک 2014
برومندنسب, سعید, بهرامی, مهدی, لاله ‌زاری, رضا,

Advance velocity is an important factor in surface irrigation system design and simulation. Volume balance is a simple model based on continuity equation used in surface irrigation design and management. In the past volume balance models, it is generally assumed that the upstream depth of surface water is constant and equal to normal depth. This initial assumption may cause significant errors i...

Electro Discharge Machining (EDM) is a noticeable machining practice among created unconventional machining procedures for intricate, complex profiles in "hard to machine" materials, similar to heat-treated steels, composites, superalloys, ceramics, composites, carbides, and so on. In EDM, the material expulsion of the cathode is accomplished through precise controlled electric discharge (the s...

2006
Fei-Yi Hung Truan-Sheng Lui Li-Hui Chen Hung-Chi Liao

The present study used the Pechini process with a continuous furnace to synthesize LiMn2O4 powders. After heat treatment, the particle size and lattice constant of the LiMn2O4 powder increased. For heat treatment cathode powders (LMO800), due to both the average valence of Mn cations approaching the theoretical value and the higher crystalinity, the discharge capacities are raised significantly...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1999
J D Coltz M T Johnson T J Ebner

Pathophysiological, lesion, and electrophysiological studies suggest that the cerebellar cortex is important for controlling the direction and speed of movement. The relationship of cerebellar Purkinje cell discharge to the control of arm movement parameters, however, remains unclear. The goal of this study was to examine how movement direction and speed and their interaction-velocity-modulate ...

2008
Keith P. Harrison Robert E. Grimm

[1] The large outflow channels of Chryse Planitia, Mars, are thought to have been carved by floodwaters discharged from an aquifer beneath a confining cryosphere. However, conventional models of groundwater flow require optimistically high permeabilities to produce, in a single flooding event, the discharge rates and volumes inferred from channel morphology. Additionally, discharge likely cease...

Journal: :iranian journal of pharmaceutical sciences 0
babak shokri shahid beheshti university, gc, laser and plasma research institute, tehran, iran, shahid beheshti university, gc, physics department, tehran, iran seyyed iman hosseini shahid beheshti university, gc, laser and plasma research institute, tehran, iran, mehdi sharifian shahid beheshti university, gc, laser and plasma research institute, tehran, iran,

wetability of biocompatible polymers can be improved by plasma surface modification. the purpose of this study was to surface modify an experimental poly (dimethylsiloxane) rubber (pdms) material in order to improve its wetability and biocompatibility. surface properties of the pdms were characterized using contact angles measurement for wetability analysis. samples of experimental silicone rub...

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