Results 11 to 20 of about 1,290,914 (304)

Experimental investigation of heat transfer coefficient in pool boiling of hybrid nanofluid over grooved surfaces [PDF]

open access: yesScientific Reports
Heat transfer in pool boiling is known as a complex and critical process in thermal systems. Considering the escalating need for higher efficiencies, using nanofluids as an efficient fluid in addition to modifications to surface geometry- particularly ...
Amir Vasei Moghadam   +2 more
doaj   +2 more sources

Effect of torch angle on arc properties and weld pool shape in stationary GTAW [PDF]

open access: yes, 2013
In this paper, a three dimensional numerical simulation is performed on a stationary arc to study the effect of torch angle in gas tungsten arc welding (GTAW) of SS304 stainless steel.
Parvez, Shahid   +4 more
core   +4 more sources

A Novel Stable Isotope Approach Demonstrates Surprising Degree of Age-Related Decline in Skeletal Muscle Collagen Proteostasis

open access: yesFunction, 2021
Age-related deterioration in turnover of collagen proteins accelerates extracellular matrix fibrosis and hinders adaptation to external stimuli. This project sought to understand factors that increase skeletal muscle fibrosis with age by studying what we
Claire B Abbott   +8 more
doaj   +1 more source

Oxidation of the Guanine Nucleotide Pool Underlies Cell Death by Bactericidal Antibiotics [PDF]

open access: yesScience, 2012
A Specific Oxidative Catastrophe Three different classes of antibiotics induce bacterial cell death by the production of hydroxyl radicals. Hydroxyl radicals are powerful oxidizing agents in living cells and will oxidize the nucleic acid base, guanine, to form 8-oxoguanine, which is potentially mutagenic because ...
Foti, James J.   +4 more
openaire   +4 more sources

Phosphodiesterase 9A in Brain Regulates cGMP Signaling Independent of Nitric-Oxide

open access: yesFrontiers in Neuroscience, 2019
PDE9A is a cGMP-specific phosphodiesterase expressed in neurons throughout the brain that has attracted attention as a therapeutic target to treat cognitive disorders.
John F. Harms   +2 more
doaj   +1 more source

Atmospheric corrosion in the metal pool of Ali Qapu palace in Isfahan: an experimental study

open access: yesHeritage Science, 2023
Isfahan, the capital of Iran during the Safavid period (1501–1736 CE), houses the Ali Qapu Palace. It was constructed during the Safavid period to be used as the royal court and a place for settling the affairs of the country.
Mehri Raoufifar, Omid Oudbashi
doaj   +1 more source

Mechanisms of the plastoquinone pool oxidation in the dark after illumination

open access: yes, 2023
Abstract Oxidation of the PQ-pool in leaves, intact chloroplasts and isolated thylakoids after its reduction by flash of light intensity 3000 µmol photons m− 2 s− 1 for 1.5 s was studied as a time-dependence in the dark of area above curve of fluorescence, Afl. The fluorescence was excited with the same flash applied after dark intervals from 0.
Daria Vilyanen   +4 more
openaire   +1 more source

Influence of Oxides on Microstructures and Mechanical Properties of High-Strength Steel Weld Joint

open access: yesHigh Temperature Materials and Processes, 2016
A comprehensive investigation was conducted into the effect of oxides on penetrations, microstructures and mechanical properties of BS700MC super steel weld bead.
Cai Yangchuan   +3 more
doaj   +1 more source

Oxidation of the plastoquinone pool in chloroplast thylakoid membranes by superoxide anion radicals [PDF]

open access: yesFEBS Letters, 2018
The plastoquinone (PQ)‐pool in chloroplast thylakoid membranes is a key electron carrier in the photosynthetic electron transport chain (PETC), and its redox state plays an essential role in the control of plant metabolism. Oxygen reduction in thylakoid membranes produces superoxide anion radicals ( ), which may react with the PQ‐pool.
Maria M, Borisova-Mubarakshina   +2 more
openaire   +2 more sources

Dissolution-induced oxide synthesis using SiO2 microparticles for oxide dispersion strengthening of Fe-based alloys

open access: yesJournal of Materials Research and Technology, 2023
This study reports on a single-track laser surface alloying process that utilizes SiO2 powder to disperse both SiO2 particles and oxide inclusions in 316L stainless steel for oxide dispersion strengthening (ODS) purposes.
Hong-Seok Kim, Sang-Hu Park
doaj   +1 more source

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