Results 51 to 60 of about 1,938,439 (188)

Characteristics of Different Kinds of Concrete Gravity Dam Under Water Contact Explosion

open access: yes工程科学与技术, 2017
:In the past half century,China has constructed more dams than any other country in the world.The impact of the blast load on the safety of a concrete dam needs to be assessed.The effects of different locations for underwater contact explosion on two ...
XU Qiang   +4 more
doaj  

Mixed uncertainty quantification of ship non-contact underwater explosion system

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesSubstantial epistemic and aleatory uncertainties coexist in the modeling and simulation (M&S) of ship non-contact underwater explosion (UNDEX).
Xiao LIANG   +3 more
doaj   +1 more source

Revealing the Underlying Mechanisms in Performance Enhancement of Shellular Lattice Electrodes During Anion Exchange Membrane Water Electrolysis Process

open access: yesAdvanced Science, EarlyView.
Micro laser powder bed fusion enables architected nickel shellular lattice gas diffusion layers for anion exchange membrane water electrolysis. Among regular open cell geometries, the Gyroid lattice promotes bubble release, convective reactant replenishment and continuous electron transport, delivering low overpotentials, enhanced charge transfer and ...
Tianxiao Niu   +7 more
wiley   +1 more source

Mesoporous PU/PEDOT:PSS Electrodes Reveal Population‐Level Stochastic Bioelectrical Dynamics in Marine Diatoms

open access: yesAdvanced Science, EarlyView.
Mesoporous mixed ionic‐electronic PU/PEDOT: PSS electrodes enable label‐free detection of stochastic extracellular bioelectrical dynamics in living Phaeodactylum tricornutum. Living diatoms actively modulate interfacial ionic dynamics, establishing stochastic electrochemical noise as a sensitive probe of microbial bioelectrochemical activity and a new ...
David M. S. Silva   +7 more
wiley   +1 more source

The cylindrical shock at underwater wire explosion [PDF]

open access: yes, 2022
New analytical solution of the piston and shock evolution for the wire electrical explosion in water is obtained. This is provided on the base of the compressible Euler equations without usually a prior introduction of any self-similarity hypothesis.
Chefranov, Sergey G., Maler, Daniel
core   +1 more source

Damage characteristics of pre-cracked steel plates subjected to underwater shock wave using FEM-SPH adaptive method

open access: yesApplied Ocean Research
During their operational lifespan, ships and ocean structures are subjected to complex loading conditions, which often lead to crack defects as a common form of damage.
Yingyu Chen   +6 more
doaj   +1 more source

Freestanding Hierarchical‐Porous BCZT Thin Films Enable Efficient Ultrasonic Energy Harvesting in Soft Tissue

open access: yesAdvanced Science, EarlyView.
Freestanding hierarchical‐porous BCZT thin films integrate a compliant porous surface with a dense piezoceramic backbone to balance mechanical reliability, voltage sensitivity, and acoustic coupling. The films enable stable wearable pulse‐wave monitoring and enhanced tissue‐coupled ultrasonic energy harvesting, offering a promising route toward soft ...
Zifan Li   +14 more
wiley   +1 more source

Programmable Sequential 4D Actuation in Multistable Kirigami Metamaterials

open access: yesAdvanced Science, EarlyView.
This study presents a modular kirigami metamaterial framework enabling programmable multistability and sequential 4D actuation. By coupling geometry‐controlled multistability with material‐dependent recovery kinetics, spatiotemporal deformation can be precisely programmed.
Eui‐Hyun Kim   +3 more
wiley   +1 more source

Experimental and Rapid Calculation Method on the Dynamic Response of Stiffened Plates with Arc-Shaped Supports Under Underwater Near-Field Non-Contact Explosion

open access: yesJournal of Marine Science and Engineering
To evaluate the protective capacity of stiffened plates with arc-shaped supports (SPASs) under underwater near-field non-contact explosion (UNFNCE), a series of experiments were designed and conducted to investigate the dynamic responses of SPASs under ...
Xiongwen Jiang   +4 more
doaj   +1 more source

Adaptive Conductive Systems: Enabling Deformable Electronics Through Engineered Materials, Circuits, and Intelligent Systems

open access: yesAdvanced Science, EarlyView.
This review presents the research advances of adaptive conductive systems from the perspective of materials, circuits, systems, and applications. Deformable conductors consist of substrates/matrices and conductive materials, structural design of circuit interconnections, fabrication of circuit interconnections, as well as intelligent systems ...
Yufei Lu   +7 more
wiley   +1 more source

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