Results 71 to 80 of about 131,468 (231)

Laser‐Architected Shape‐Configurable Vertical Graphene Thermoacoustic Loudspeakers for 3D Acoustic Emission

Advanced Science, EarlyView.
A dual‐laser‐architected vertical graphene film enables high‐performance, morphologically reconfigurable thermoacoustic loudspeakers.The vertically aligned graphene structures combine efficient heat dissipation, thickness‐independent SPL, and kirigami‐driven 3D transformations, offering shape‐programmable, stretchable, and omnidirectional acoustic ...
TaeGyeong Lim, Se Young Lee, Dohyung Lee, Baek Heon Lim, Jeongbo Lee, Wooseok Song, Sun Sook Lee, Sungwoong Park, Jin Kim, Soonmin Yim, Ki‐Seok An, Saewon Kang   +11 more
wiley   +1 more source

Light‐Harvesting Photothermal Hotspots Enabled by NIR Scattering‐Absorption Coupling

Advanced Science, EarlyView.
By coupling the broadband scattering of nanodiamonds with the plasmonic absorption of gold nanostars, this work proposes a novel strategy for the active modulation of photon transport. This strategy creates localized photothermal hotspots in turbid media and achieves a supra‐additive heating efficiency, thereby providing a universal platform for low ...
Zebin Wu, Changming Bao, Pengyu Zhang, Tao Ding, Weiming Lin, Haodong Li, Wenjian Luo, Xizhi Deng, Hao Wang, Guanle Li, Hongyue Hu, Ye Wang, Dawei Jiang, Yu Zhang, Sisi Jia, Nan Zhang, Min Ke, Le Liang   +17 more
wiley   +1 more source

Simulation of Zitterbewegung by modelling the Dirac equation in metamaterials

New Journal of Physics, 2015
Strong field processes which occur in intense laser fields are a test area for relativistic quantum field theory, but difficult to study experimentally and theoretically.
Sven Ahrens, Shi-Yao Zhu, Jun Jiang, Yong Sun   +3 more
doaj   +1 more source

Calculation of Magnetic Losses with Non-Uniform Distribution of Magnetic Induction in the Stator Tooth of a Switched Reluctance Motor [PDF]

Problems of the Regional Energetics
The aim of this study is to investigate and determine the effect of accounting for the non-uniform distribution of magnetic induction (by detailing the stator tooth model) on the calculation results of magnetic losses in the stator teeth of a switched ...
Bibik O.V., Mazurenko L.I., Popovych О.М., Golovan I.V., Shykhnenko M.O.   +4 more
doaj   +1 more source

Pulsed electromagnetic field therapy on nonsurgical treatment of peri‐implantitis: 12–26 months follow‐up

Journal of Periodontology, EarlyView.
Abstract Background Pulsed electromagnetic field (PEMF) therapy, renowned for its immunomodulatory effects and established efficacy in orthopedics, shows promise for managing peri‐implantitis by reducing soft tissue inflammation and marginal bone loss.
Yaniv Mayer, Eran Gabay, Amin Younis, Ofir Ginesin, Rafael S. Siroma, Shlomo Barak, Ido Georgy, Yoni Friedlander, Thabet Asbi, Hadar Giladi Zigdon, Jamil A. Shibli   +10 more
wiley   +1 more source

Calculation of transformation factor of conductimetric gauge of the biosensor

Технологія та конструювання в електронній апаратурі, 2007
A five-component model for calculating the transformation factor of planar comb electrodes in a conductimetric biosensor is proposed. The existing three-component model is extended by two additional terms that account for the electric field at electrode ...
A. A. Michal, M. P. Rubanchuk
doaj  

Engineering Topological Phases with a Traveling‐Wave Spacetime Modulation

Laser &Photonics Reviews, EarlyView.
Time‐varying systems have garnered considerable attention due to their unique potential in manipulating electromagnetic waves. Here, a novel class of topological spacetime crystals with a traveling‐wave modulation is introduced. By manipulating material anisotropy, one can engineer light angular momentum and non‐trivial topological phases characterized
João C. Serra, Mário G. Silveirinha
wiley   +1 more source

A conditional latent autoregressive recurrent model for generation and forecasting of beam dynamics in particle accelerators

Scientific Reports
Particle accelerators are complex systems that focus, guide, and accelerate intense charged particle beams to high energy. Beam diagnostics present a challenging problem due to limited non-destructive measurements, computationally demanding simulations ...
Mahindra Rautela, Alan Williams, Alexander Scheinker   +2 more
doaj   +1 more source

Quantum Electrodynamics at Large Distances II: Nature of the Dominant Singularities

, 1995
Accurate calculations of macroscopic and mesoscopic properties in quantum electrodynamics require careful treatment of infrared divergences: standard treatments introduce spurious large-distances effects.
C. Chandler, D. Iagolnitzer, D. Iagolnitzer, H. P. Stapp, H. P. Stapp, H. P. Stapp, Henry P. Stapp, J. Coster, N. Nakanishi, R. J. Eden, T. Kawai, T. Kawai, Takahiro Kawai   +12 more
core   +1 more source

Enhancement and Speed‐Up of Carrier Dynamics in A Dielectric Nanocavity with Deep Sub‐Wavelength Confinement

Laser &Photonics Reviews, EarlyView.
This work presents the first experimental investigation of ultrafast dynamics in dielectric bowtie nanocavities, featuring deep‐subwavelength mode confinement. Measurements reveal enhanced two‐photon absorption, sub‐picosecond carrier relaxation, and strong pump–probe interactions, demonstrating clear advantages over conventional nanocavities for low ...
Gaoneng Dong, Ali Nawaz Babar, Rasmus Ellebæk Christiansen, Søren Engelberth Hansen, Søren Stobbe, Yi Yu, Jesper Mørk   +6 more
wiley   +1 more source