The present paper is on the physical and mechanical characterization of machined chips commercially available highly conductive metallic materials, namely aluminium copper under different machining environments. More specifically, geometry hardness as well removal effect surfaces are investigated in a quantitative fashion function fluid cutting parameter. carried out by using horizontal shaper ...

purpose: to report a case of butterfly-shaped macular dystrophy. patient and findings: a 34-year-old woman presented with metamorphopsia in both eyes from 2 years ago. visual acuity was 9/10 in right eye and 10/10 in left eye. there was no pathologic finding on slit lamp biomicroscopy and funduscopy other than mild macular retinal pigment epithelium mottling. visual fields and electroretinogram...

In this article, the thermal performance of a parabolic trough solar air heater (PTSAH) with U-shaped heat exchanger is evaluated. The heater's examined by using copper and aluminum exchangers (UHX) without fin alternately, inside absorber tube placed at focal length nickel-coated stainless steel trough. system in form temperature difference achieved outlet for both efficiency. It observed that...

Sources Of Copper .........................................................................................................................1 Environmental Copper...............................................................................................................1 Copper Water Pipes ...........................................................................................................

Abstract The heat transport and entropy formation of an unsteady Sutterby hybrid nanofluid (SBHNF) are investigated in this work. SBHNF’s flowing thermal properties by exposing the to a slippery hot surface. This analysis includes influences solid-shaped nanoparticles, porous materials, radiative flux, viscous dissipative flow. Galerkin finite element technique (G-FEM) is used find self-similar...

Extracellular proteins of wild-type Vibrio alginolyticus were compared with those of copper-resistant and copper-sensitive mutants. One copper-resistant mutant (Cu40B3) constitutively produced an extracellular protein with the same apparent molecular mass (21 kDa) and chromatographic behavior as copper-binding protein (CuBP), a copper-induced supernatant protein which has been implicated in cop...

It has become clear that copper toxicity is playing a major role in Alzheimer's disease; but why is the brain copper toxicity with cognition loss in Alzheimer's disease so much different clinically than brain copper toxicity in Wilson's disease, which results in a movement disorder? Furthermore, why is the inorganic copper of supplement pills and in drinking water so much more damaging to cogni...

the interaction of copper oxide nanoparticles and copper ions and proteinase k from tritirachium album limber has been investigated employing uv spectroscopy and kinetics measurements. the aim of this study was to evaluate the effect of nanoparticles of cuo for proteinase k. in this paper we compare the effect of copper oxide nanoparticles with the effect of copper ions on proteinase k stabilit...

Favoring the CO2 reduction reaction (CO2RR) over the hydrogen evolution reaction and controlling the selectivity towards multicarbon products are currently major scientific challenges in sustainable energy research. It is known that the morphology of the catalyst can modulate catalytic activity and selectivity, yet this remains a relatively underexplored area in electrochemical CO2 reduction. H...

A simple experiment illustrating the principles of electrodynamic magnetic suspension is described and test results are given. A disk-shaped coil made of insulated copper magnet wire and energized with 60-Hz ac line voltage is levitated in a stable equilibrium position above a wide aluminum plate. The mechanisms generating levitation force are identified by the use of Maxwell’s equations. A lum...