Results 41 to 50 of about 265 (210)

Experimental study on the effect of impact target distance on coal breaking efficiency of high-pressure gas–liquid two-phase jet

open access: yesScientific Reports
The effective impact target distance is one of the key parameters determining whether high-pressure gas–liquid two-phase jet technology can be applied in underground coal breaking and permeability enhancement projects. To investigate the effect of target
Yang Li
doaj   +1 more source

Basic Study on Cavitation Erosion by Liquid-Droplet Impingements on Wind Turbine Blade of Metallic Material

open access: yesEnergies
Rain erosion is a critical issue for the development of wind power generation because it limits the lifetime of wind turbine blades. To clarify the erosion initiation mechanism in wind turbine blades of metallic material, pit formation and erosion ...
Nobuyuki Fujisawa
doaj   +1 more source

A comparative study for the impact performance of shaped charge JET on UHPC targets

open access: yesDefence Technology, 2019
With the development of two-stage munitions (a precursor shaped charge (SC) and a following kinetic energy projectile) to attack the hard concrete targets, as well as the increasing applications of ultra-high performance concrete (UHPC) in both civil and
Hao Wu, Feng Hu, Qin Fang
doaj   +1 more source

Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions

open access: yesAdvanced Materials, EarlyView.
Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng   +4 more
wiley   +1 more source

A prediction model for the slot depth of high pressure water jet

open access: yesResults in Physics, 2018
Coal mines in China are characterized by low permeability, and hydraulic slotting is an effective technique to increase the gas permeability of coal. However, the slot depth cannot be accurately determined, which results in the layout parameters of the ...
Yongjiang Zhang, Quanle Zou
doaj   +1 more source

Photoactivable Surfactant Design for In Situ Stabilization of Hydrogel Bioelectronics

open access: yesAdvanced Materials, EarlyView.
Photoactivable surfactant additive enables in situ stabilization of hydrogel bioelectronics. ABSTRACT Conductive polymer hydrogels offer unique advantages for soft, stretchable biointerfaces by combining tissue‐like mechanics with high ionic conductivity.
Seungyeon Lee   +11 more
wiley   +1 more source

Validation of the ERO2.0 code using W7-X and JET experiments and predictions for ITER operation

open access: yesNuclear Fusion
The paper provides an overview of recent modelling of global material erosion and deposition in the fusion devices Wendelstein 7-X (W7-X), JET and ITER using the Monte-Carlo code ERO2.0.
J. Romazanov   +19 more
doaj   +1 more source

Multiscale Simulation of the Hydroabrasive Erosion of a Pelton Bucket: Bridging Scales to Improve the Accuracy

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2019
Erosive wear of hydraulic machines is a common issue, which results in efficiency degradation, the enhancement of cavitation, and the need for expensive maintenance.
Sebastián Leguizamón   +4 more
doaj   +1 more source

1‐D Collocated Dual‐Gradient Sensory Fibers for Comprehensive Sensing and Decoding of Complex Human Motion and Physiology

open access: yesAdvanced Materials, EarlyView.
Coupled materials design enables a monolithic fiber that integrates complementary sensing regimes into a single wearable strand. By preserving informative signal features across subtle physiological deformation, large body motion, and mixed mechanical inputs, the dual‐gradient architecture generates synchronized, less redundant outputs that improve ...
Yunheum Lee   +13 more
wiley   +1 more source

Development of a High Pressure Water Jet Experimental Equipment

open access: yesShiyou jixie, 2019
Aiming at the shortcomings of test equipment in the field of water jet research, a set of high-pressure water jet indoor test system integrating test and control has been developed.
Liu Hui   +5 more
doaj  

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