Results 131 to 140 of about 302,242 (373)

Thermal Dynamics Induced by Surface Acoustic Waves in Lanthanide‐Doped Core@Multishell Nanoparticles

Advanced Optical Materials, EarlyView.
Accurate local temperature readout in integrated nanoscaled devices driven by high‐frequency surface acoustic waves (SAWs) has a strong technological interest. This image illustrates how lanthanide‐doped core@multishell nanoparticles can be employed as local temperature probes in SAW applications.
Pablo B. Pinto, Pedro W. Matrone, Flávia S. Ferreira, Paulo V. Santos, Fernando A. Sigoli, Odilon D. D. Couto Jr.   +5 more
wiley   +1 more source

An acoustic emission study of plastic deformation in polycrystalline aluminium [PDF]

, 1979
R. C. Bill, J. R. Frederick, D. K. Felbeck   +2 more
openalex   +1 more source

Slow Hot Carrier Cooling and Quasi‐Fermi Shift Dynamics in Few‐Layer α‐In2Se3 via Transient Absorption Spectroscopy

Advanced Optical Materials, EarlyView.
Ultrafast transient absorption spectroscopy reveals that α‐In2Se3, a non‐toxic and air‐stable 2D material, demonstrates slow hot carrier (HC) cooling (≈35 ps), comparable to perovskites. This prolonged cooling can enable efficient energy extraction. Comprehensive analysis captures key HC dynamics, such as quasi‐Fermi shifts, many‐body interactions, and
Sung Bok Seo, Sanghee Nah, Muhammad Sajjad, Sang Ho Suk, Sangwan Sim   +4 more
wiley   +1 more source

Modifications and Statistical Analysis of Acoustic Emission Models Based on the Damage and Fractal Characteristics

Advances in Materials Science and Engineering, 2018
The damage process is accompanied by the acoustic emission for quasibrittle materials. And in the process of material damage evolution, the length of microcracks satisfies the fractal distribution.
Jie Yang, Yanna Zheng, Huijing Wang
doaj   +1 more source

Surface-acoustic-wave-driven luminescence from a lateral p-n junction

, 2007
The authors report surface-acoustic-wave-driven luminescence from a lateral p-n junction formed by molecular beam epitaxy regrowth of a modulation doped GaAs/AlGaAs quantum well on a patterned GaAs substrate.
Anderson, D., Atkinson, P., Barnes, C. H. W., Bremner, S. P., Gell, J. R., Jones, G. A. C., Kataoka, M., Norman, C. E., Ritchie, D. A., Sfigakis, F., Shields, A. J., Ward, M. B.   +11 more
core   +1 more source

Chemical AI in the Limelight: The Contribution of Photochromic Materials and Oscillatory Chemical Reactions

Advanced Optical Materials, EarlyView.
Photochromic compounds are versatile ingredients for the development of Chemical AI. When they are embedded in a tight microenvironment, they become Markov blankets. They are also valuable for processing Boolean and Fuzzy logic. They contribute to neuromorphic engineering in wetware based on opto‐chemical signals exchanged with oscillatory chemical ...
Pier Luigi Gentili
wiley   +1 more source

Reduction of acoustic and infrared emissions from a mil. std. 1.5-kW engine-generator set [PDF]

, 1975
Paul J. Remington, M. J. Rudd, L. Gaddy, William A. Summerson   +3 more
openalex   +1 more source

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

Advanced Photonics Research, EarlyView.
This article uses an optical lens to emulate the gravitational lensing effect and observe the Einstein ring (ER) patterns. The symmetry‐breaking ER, i.e., Einstein cross, is observed utilizing a rotation‐symmetry‐breaking hemi‐ellipsoid lens. Deformed Einstein cross patterns induced by noncollinearly alignment of the light source–lens–observer are ...
Jun‐Liang Duan, Wen Xiao, Minyong Guo, Tong Liu, Huanyang Chen, Jin‐Hui Chen   +5 more
wiley   +1 more source

Waveform and Frequency Spectra of Acoustic Emissions [PDF]

, 1971
Adrian Pollock, R.W.B. Stephens
openalex   +1 more source

Research on the Acoustic Emission Source Localization Methodology in Composite Materials based on Artificial Intelligence [PDF]

arXiv
In this study, methodology of acoustic emission source localization in composite materials based on artificial intelligence was presented. Carbon fiber reinforced plastic was selected for specimen, and acoustic emission signal were measured using piezoelectric devices. The measured signal was wavelet-transformed to obtain scalograms, which were used as
arxiv