Results 41 to 50 of about 1,091,596 (240)

An experimental and theoretical study of converging polygonal shock waves

open access: yes, 2002
An experimental investigation was carried out to explore the possibility of producing converging polygonal shocks in an essentially two-dimensional cavity.
Tillmark, Nils,   +3 more
core   +1 more source

Oligoethylene Glycol Side‐Chain Engineering of Y6‐Derived Nonfullerene Acceptors for Thermally Induced Spontaneous Pseudo‐Planar Heterojunction Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
OEG‐functionalized Y6‐derived acceptors induce thermally driven vertical phase separation, enabling pseudo‐planar heterojunction organic photodetectors. The resulting PM6:YTEG‐4F and PM6:YTEG‐4Cl organic photodetectors suppress dark current density by approximately 260‐fold and 210‐fold, respectively, while maintaining efficient photoresponse ...
Se Jeong Park   +11 more
wiley   +1 more source

Experimental Study on the Evolution of Single-Mode Interface Induced by Co-Directional Rarefaction and Shock Waves

open access: yes气体物理
Developments of a single-mode light/heavy interface accelerated by co-directional rarefaction and shock waves were investigated. Induced by the rarefaction waves, the light/heavy perturbation amplitude experiences an oscillatory growth, which is referred
Xing GAO   +3 more
doaj   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee   +21 more
wiley   +1 more source

Evolution of Subsonic Shock Waves Associated with Reconnection Jets in Earth’s Magnetotail

open access: yesThe Astrophysical Journal
Motivated by the signatures of nonlinear electrostatic waves observed by the Magnetospheric Multiscale spacecraft mission in reconnection jet regions of Earth's magnetotail, we have explored the dynamical features of ion-acoustic shock waves in the ...
Kuldeep Singh   +2 more
doaj   +1 more source

Optical spatial shock waves in nonlocal nonlinear media

open access: yesAdvances in Physics: X, 2019
Dispersive shock waves are fascinating phenomena occurring when nonlinearity overwhelms linear effects, such as dispersion and diffraction. Many features of shock waves are still under investigation, as the interplay with noninstantaneity in temporal ...
Giulia Marcucci   +5 more
doaj   +1 more source

Shock Wave Characterization Using Different Diameters of an Optoacoustic Carbon Nanotube Composite Transducer

open access: yesApplied Sciences, 2022
Carbon nanotube–polymethyl siloxane (CNT-PDMS) composite transducers generate shock waves using optoacoustic technology. A thin layer of thermally conductive CNT and elastomeric polymer, PDMS, is applied on the concave surface of transparent ...
Jooho Lee   +2 more
doaj   +1 more source

Focusing of strong shocks in an annular shock tube

open access: yes, 2007
Focusing of strong shock waves in a gas-filled thin convergence chamber with various forms of the reflector boundary is investigated experimentally and numerically. The convergence chamber is mounted at the end of the horizontal co-axial shock tube.
Tillmark, Nils,   +3 more
core   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Characterization of shock waves in power ultrasound [PDF]

open access: yes, 2021
The application of cavitation-induced shock waves generated at low driving frequencies, known as power ultrasound, is essential for a wide range of fields, such as sonochemistry, lithotripsy, nanomaterials, emulsions and casting, to name but a few.
Pericleous, K   +17 more
core   +1 more source

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