Results 41 to 50 of about 2,821,978 (433)
Testing the Underlying Chemical Principles of the Biotic Ligand Model (BLM) to Marine Copper Systems: Measuring Copper Speciation Using Fluorescence Quenching [PDF]
, 2017 Speciation of copper in marine systems strongly influences the ability of copper to cause toxicity. Natural organic matter (NOM) contains many binding sites which provides a protective effect on copper toxicity.
McGeer, James C. +2 more
core +2 more sources
A Comparative Study on the Condensation Heat Transfer of R-513A as an Alternative to R-134a
Machines, 2021 This paper presents the two-phase condensation heat transfer and pressure drop characteristics of R-513A as an alternative refrigerant to R-134a in a 9.52-mm OD horizontal microfin copper tube.
Andreas Karageorgis +2 more
doaj +1 more source
Obstetrics and Gynecology International, 2020 Midgut volvulus in pregnancy is rare but life-threatening, resulting in high maternal and fetal mortality. This surgical emergency commonly masquerades as symptoms of pregnancy, which together with its low incidence often leads to delay in diagnosis and ...
Eelyn Chong +4 more
doaj +1 more source
The effectiveness of conventional trickling filter treatment plants at reducing concentrations of copper in wastewaters [PDF]
, 2009 This is the post-print version of the final paper published in Science of the Total Environment. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Belarra +42 more
core +1 more source
Copper and Copper Proteins in Parkinson’s Disease [PDF]
Oxidative Medicine and Cellular Longevity, 2014 Copper is a transition metal that has been linked to pathological and beneficial effects in neurodegenerative diseases. In Parkinson’s disease, free copper is related to increased oxidative stress, alpha-synuclein oligomerization, and Lewy body formation. Decreased copper along with increased iron has been found insubstantia nigraand caudate nucleus of
Sergio Montes +4 more
openaire +3 more sources
, 2008 The use of a copper-squirrel cage in induction motors has been analyzed testing a prototype rated 1.1 kW and comparing the performances with a twin machine with an aluminum cage. The comparison has been made using torque, efficiency, starting torque, and
Boglietti, Aldo +3 more
core +1 more source
The computational simulation of the reflection spectra of copper red glaze [PDF]
, 2022 Owing to the limitation of traditional analytical methods, the coloration mechanism of copper red glaze has been disputed in the academic field for a long time, which mainly focuses on whether the color agent is metallic copper nanoparticles or cuprous oxide (Cu2O) nanoparticles.
arxiv +1 more source
Geosciences, 2012 An extensive late Aeronian patch reef swarm outcrops for 60–70 km on Anticosti Island, eastern Canada, located in the inner to mid-shelf area of a prominent tropical carbonate platform of southeastern Laurentia, at 20°–25° S paleolatitude of the southern
Jisuo Jin, Paul Copper
doaj +1 more source
Synthesis of large-area and aligned copper oxide nanowires from copper thin film on silicon substrate [PDF]
, 2007 Large-area and aligned copper oxide nanowires have been synthesized by thermal annealing of copper thin films deposited onto silicon substrate. The effects of the film deposition method, annealing temperature, film thickness, annealing gas, and ...
Alphonse, Pierre +4 more
core +3 more sources
s-d coupling enhanced phonon anharmonicity in copper-based compounds [PDF]
arXiv, 2021 Materials with ultralow thermal conductivity are of great interest for efficient energy conversion and thermal barrier coating. Copper-based semiconductors such as copper chalcogenides and copper halides are known to possess extreme low thermal conductivity, whereas the fundamental origin of the low thermal conductivity observed in the copper-based ...
arxiv