Results 51 to 60 of about 44,317 (262)

Numerical simulation of water entry problems considering air effect using a multiphase Riemann-SPH model

open access: yesAdvances in Aerodynamics, 2021
The water entry is a classic fluid-structure interaction problem in ocean engineering. The prediction of impact loads on structure during the water entry is critical to some engineering applications.
Zi-Fei Meng   +3 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

open access: yesFEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento   +6 more
wiley   +1 more source

Influence law of air flow and water immersion duration on the risk of secondary oxidation spontaneous combustion of coal

open access: yesScientific Reports
To further elucidate the variations of secondary oxidation spontaneous combustion risk of lignite under different air flows and immersion time. Secondary oxidation experiments of short-term water-immersed coal and long-term water-immersed coal were ...
Ruirui Yu   +5 more
doaj   +1 more source

Numerical Analysis of Heavy Oil-Water-Air Flow in a Horizontal Pipe Using Core Annular Flow Adapting Large Eddy Simulations

open access: yesEnergies
This study focuses on the suitability of Core Annular Flow (CAF) technologies for transporting heavily viscous oil lubricated with water in a horizontal conduit.
Salim Al. Jadidi   +2 more
doaj   +1 more source

Energy characteristics of gas lift [PDF]

open access: yesE3S Web of Conferences
This paper assesses the state of theoretical and experimental modeling of air-lift technology. A calculation of the energy contribution of atmospheric pressure during air injection is presented.
Feodorov Aleksandr   +4 more
doaj   +1 more source

Numerical simulation of air cavity under a simplified model-scale hull form

open access: yesJournal of Ocean Engineering and Science, 2020
Injecting air under hulls of marine vessels can lead to reduction of their hydrodynamic resistance. Since experimental development of air-assisted hulls usually requires a large number of tests, numerical simulations of air-ventilated water flows can ...
Konstantin I. Matveev
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Comparison of life cycle assessment for different volume polyethylene packaging on the environment [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2013
In this paper, environmental impact of polyethylene tubes of different volumes: 30 mL and 100 mL was assessed using the life cycle assessment. The data were collected on the types and amounts of the materials and energy consumption in the process of ...
Lazić Vera   +3 more
doaj  

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