Results 101 to 110 of about 275,515 (305)

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb   +3 more
wiley   +1 more source

Investigation of Gas Evolution on Nickel Wire Electrodes During Alkaline Water Electrolysis

open access: yesEnergies
The pursuit of higher current densities and device miniaturization intensifies gas evolution in alkaline water electrolysis, thereby reducing catalyst utilization and degrading system performance.
Junxu Liu   +4 more
doaj   +1 more source

On the One-Dimensional Modeling of Vertical Upward Bubbly Flow

open access: yesScience and Technology of Nuclear Installations, 2018
The one-dimensional two-fluid model approach has been traditionally used in thermal-hydraulics codes for the analysis of transients and accidents in water–cooled nuclear power plants.
C. Peña-Monferrer   +5 more
doaj   +1 more source

Travelling waves in bubbly liquid with continuous bubble-size distribution

open access: yesEuropean Journal of Applied Mathematics, 1995
An existence and uniqueness theorem for travelling waves in a bubbly liquid with a continuous bubble-size distribution is proved.
openaire   +1 more source

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou   +17 more
wiley   +1 more source

Research on the mechanism and distribution characteristics of bubble generation in the bow of a research vessel

open access: yesJournal of Ocean Engineering and Science
The flow around the ship bow involves complex three-dimensional flow separation, leading to the generation of a large number of bubbles. These bubbles have a significant impact on acoustic instrumentation, and mitigating their effects has become a key ...
Peng Xu   +4 more
doaj   +1 more source

Operando Temperature Sensing at the Actual Electrocatalytic Interface by Nanodiamond Quantum Sensors

open access: yesAdvanced Functional Materials, EarlyView.
By integrating a wide‐field microscope with a custom‐designed electrolyzer, nanoscale temperature changes can be recorded in situ during the electrolysis process without interfering with ongoing electrochemical reactions. This method establishes a correlation between the interface temperature and specific electrochemical reactions, making the measured ...
Zan Li   +7 more
wiley   +1 more source

Kernel functions to flotation bubble size distributions

open access: yesMinerals Engineering, 2018
Abstract Flotation modelling has advanced from deterministic single particle-bubble models into using such models to solve flotation systems by using modern computational techniques. The step from a single particle- single bubble event to multiple events taking place in the large computational volume like a flotation cell poises the challenge of ...
Jávor, Z.   +3 more
openaire   +4 more sources

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

open access: yesAdvanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra   +8 more
wiley   +1 more source

Experimental analysis of the clustering behavior of spherical bubbles rising along an inclined flat plate

open access: yesNihon Kikai Gakkai ronbunshu, 2016
The behavior of mono-dispersed spherical bubbles rising along an inclined flat plate has been observed experimentally and the effects of the inclination angle and the air flow rate have been investigated.
Toshiyuki OGASAWARA   +2 more
doaj   +1 more source

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