Results 131 to 140 of about 4,650,677 (354)

Charge‐Induced Morphing Gels for Bioinspired Actuation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu   +4 more
wiley   +1 more source

High-rate photocatalytic degradation of methylene blue by aerated swirl flow vacuum ultraviolet reactor

open access: yesResults in Engineering
This study aimed to develop a high‑rate and energy efficient process for degrading the recalcitrant dye methylene blue using an aerated swirl flow vacuum ultraviolet (VUV) reactor equipped with xenon excimer lamps. A tangential inlet and corrugated inner
Seung Joo Lim, Yessika Natalia Chelsie
doaj   +1 more source

Rayleigh scattering temperature measurements in a swirl stabilized burner [PDF]

open access: yes, 2013
Rayleigh scattering temperature measurements were obtained in a turbulent reactive swirling coaxial jet discharged from a swirl-stabilized burner along the jet-flame centerline.
Hardalupas, Y.   +3 more
core  

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini   +9 more
wiley   +1 more source

Theory and measurements of labyrinth seal coefficients for rotor stability of turbocompressors [PDF]

open access: yes
The prediction of rotordynamic coefficients for gas seals is achieved with the aid of a two-volume bulk flow model based on turbulent rotationally symmetric 3D flow calculations including swirl flow.
Syssmann, H. R.
core   +1 more source

An Experimental and Numerical Investigation of Swirling Flows in a Rectangular Nozzle [PDF]

open access: yes, 1987
The high thrust to weight ratios now possible for military aircraft have made thrust vector pitch control more attractive and versatile than aerodynamic surface pitch control.
Marble, Frank E., Sobota, Thomas H.
core  

Swirling and non-swirling flow in conical diffusers [PDF]

open access: yes
The performance of conical diffusers with axial and swirling flew has been considered. As a necessary starting point the various criteria used for defining performance have been reviewed and have been extended to swirling flew cases. A new 'AREA-PLOT' method, which unifies presentation of performance information, for plane and conical diffusers has ...
openaire   +2 more sources

Coordinated Multi‐Component Gradient Engineering of Catalyst Layers for Advanced Polymer Electrolyte Fuel Cells

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou   +15 more
wiley   +1 more source

Parametric Study of Shock/Boundary-Layer Interaction and Swirl Metrics in Bleed-Enabled External Compression Intakes

open access: yesComputation
Flow quality at the engine face, especially total pressure recovery and swirl, is central to the performance and stability of external compression supersonic inlets.
Muhammed Enes Ozcan, Nilay Sezer Uzol
doaj   +1 more source

Effect of swirl on premixed combustion [PDF]

open access: yes
Combustion in a premixed swirl combustor composed of confined concentric jets (5 cm and 10 cm diameter) were studied. The inner flow is fuel and air; the outer flow is air. Both flows may contain swirl either in the same or opposite directions.
Gouldin, F. C., Leibovich, S.
core   +1 more source

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