Results 21 to 30 of about 81,581 (351)

Research on Thermodynamic Characteristics of Hydraulic Power Take-Off System in Wave Energy Converter

open access: yesEnergies, 2022
Hydraulic power-take-off (PTO) systems which utilize high-pressure oil circuits to transmit energy are widely applied in wave energy generation. The properties of hydraulic oil are significantly influenced by environmental conditions, and its dynamic ...
Yubo Niu   +5 more
doaj   +1 more source

Fracture Initiation of an Inhomogeneous Shale Rock under a Pressurized Supercritical CO2 Jet

open access: yesApplied Sciences, 2017
Due to the advantages of good fracture performance and the application of carbon capture and storage (CCS), supercritical carbon dioxide (SC-CO2) is considered a promising alternative for hydraulic fracturing.
Yi Hu   +6 more
doaj   +1 more source

Transient 3D CFD Simulation of a Pelton Turbine—A State-of-the-Art Approach for Pelton Development and Optimisation

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
The complex flow conditions in Pelton turbines make it challenging to gain detailed insight into the local flow processes. However, CFD methods offer vast potential for developing and optimising Pelton turbines due to these flow conditions.
Lukas Sandmaier   +2 more
doaj   +1 more source

Analysis of the cavitating flow induced by an ultrasonic horn – Numerical 3D simulation for the analysis of vapour structures and the assessment of erosion-sensitive areas

open access: yesEPJ Web of Conferences, 2014
This paper reports the outcome of a numerical study of ultrasonic cavitation using a CFD flow algorithm based on a compressible density-based finite volume method with a low-Machnumber consistent flux function and an explicit time integration [15; 18] in
Mottyll Stephan   +5 more
doaj   +1 more source

Improvement in Light Output of Ultraviolet Light-Emitting Diodes with Patterned Double-Layer ITO by Laser Direct Writing

open access: yesNanomaterials, 2019
A patterned double-layer indium-tin oxide (ITO), including the first unpatterned ITO layer serving as current spreading and the second patterned ITO layer serving as light extracting, was applied to obtain uniform current spreading and high light ...
Jie Zhao   +5 more
doaj   +1 more source

Nanoscale Assembly of Copper Bearing-Sleeve via Cold-Welding: A Molecular Dynamics Study

open access: yesNanomaterials, 2018
A bearing is an important component in contemporary machinery and equipment, whose main function is to support the mechanical rotator, reduce the friction coefficient during its movement, and guarantee the turning accuracy.
Hongjian Zhou   +5 more
doaj   +1 more source

Ligament rotation-dominated creep in stochastic bicontinuous nanoporous metallic glass

open access: yesMaterials & Design, 2023
Bicontinuous nanoporous metallic glasses (BNPMGs) are promising candidates in functional applications such as energy storage, sensors, and fuel cells. The time-dependent deformation strongly affects their long-term in-service performance.
Yuhang Zhang   +5 more
doaj   +1 more source

Numerical Investigation on the Influence of Class Number and Wavelength on the Performance of Curved Vane Demisters

open access: yesAtmosphere, 2022
Curved vane demisters with high efficiency are widely used in power, chemical, and gas industries. To reveal the relationship between the separation performance and the basic geometric parameters used in the steam generator.
Zhen Cai   +6 more
doaj   +1 more source

Insights Into the Influence of Sidewall Morphology on the Light Extraction Efficiency of Mini-LEDs

open access: yesIEEE Photonics Journal, 2019
We systemically investigated the influence of sidewall morphology change based on TMAH etching on the optical performance of mini-LEDs. The dominant feature of prism structures on the sidewall of mini-LEDs with TMAH etching treatment varied from ...
Bin Tang   +5 more
doaj   +1 more source

Anisotropic orientation dependent shock wave responses of monocrystalline molybdenum

open access: yesJournal of Materials Research and Technology, 2023
Molybdenum (Mo) demonstrates excellent industrial application potentials in micro-nano devices, which are inevitably subjected to shock loads during their application under harsh service environments.
Yiqun Hu   +5 more
doaj   +1 more source

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