Results 81 to 90 of about 1,383,419 (296)

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Coordinated ground-based and Cluster observations of large amplitude global magnetospheric oscillations during a fast solar wind speed interval [PDF]

, 2002
We present magnetospheric observations of very large amplitude global scale ULF waves, from 9 and 10 December 2000 when the upstream solar wind speed exceeded 600 km/s.
Viljanen, A., Mann, I. R., Kauristie, K., Voronkov, I., Balogh, A., Bale, S. D., Dunlop, M., Wild, J., Donovan, E., Yeoman, T. K., Amm, O., Milling, D. K., Opgenoorth, H. J.   +12 more
core   +3 more sources

Equatorial Oceanic Waves and the Evolution of 2007 Positive Indian Ocean Dipole

Terrestrial, Atmospheric and Oceanic Sciences, 2014
The role of equatorial oceanic waves on the evolution of the 2007 positive Indian Ocean Dipole (pIOD) event was evaluated using available observations and output from a quasi-analytical linear wave model.
Iskhaq Iskandar, Wijaya Mardiansyah, Dedi Setiabudidaya, Pradanto Poerwono, Netty Kurniawati, Fadli Saymsuddin, Motoki Nagura   +6 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Direct observations of airflow separation over ocean surface waves

Nature Communications
A large portion of the kinetic energy found within the ocean originates from the growth of ocean surface waves under the action of wind. However our understanding of wind wave dynamical coupling mechanisms remains incomplete. Competing theories exist but
Marc P. Buckley, Jochen Horstmann, Ivan Savelyev, Jeff R. Carpenter   +3 more
doaj   +1 more source

Global coastal attenuation of wind-waves observed with radar altimetry. [PDF]

Nat Commun, 2021
Passaro M, Hemer MA, Quartly GD, Schwatke C, Dettmering D, Seitz F.   +5 more
europepmc   +1 more source

Heating of the low-latitude solar wind by dissipation of turbulent magnetic fluctuations [PDF]

, 2001
We test a theory presented previously to account for the turbulent transport of magnetic fluctuation energy in the solar wind and the related dissipation and heating of the ambient ion population. This theory accounts for the injection of magnetic energy
Matthaeus, William H., Richardson, John D., Oughton, Sean, Smith, Charles W., Ness, Norman F., Zank, Gary P.   +5 more
core   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

Advanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami, Hengzhe Ren, Erqian Dong, Ashkan Ghanbarzadeh‐Dagheyan, Chen Shen   +4 more
wiley   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Simulated Directional Wave Spectra of the Wind Sea and Swell under Typhoon Mangkhut

Atmosphere
A third-generation wave model is driven by the synthetic wind field combined with the revised Holland wind and surface wind product from the National Centers for Environmental Prediction (NCEP).
Yu Yan, Mengxi Hu, Yugen Ni, Chunhua Qiu
doaj   +1 more source