Results 211 to 220 of about 6,318,703 (393)

Anisotropic Laser Performance in an Optically Isotropic Crystal by Phonon Engineering

Advanced Photonics Research, EarlyView.
The symmetry‐breaking in a photon–phonon collaboratively pumped laser is investigated for the first time. Using an optically isotropic Nd:YAG crystal, the phonon‐assisted electronic transitions accompanied by anisotropic fluorescence emission are observed.
Hong Hao, Fei Liang, Yu Fu, Dazhi Lu, Haohai Yu, Huaijin Zhang   +5 more
wiley   +1 more source

Extensibility and denseness of periodic semigroup actions [PDF]

arXiv
We study periodic points and finitely supported invariant measures for continuous semigroup actions. Introducing suitable notions of periodicity in both topological and measure-theoretical contexts, we analyze the space of invariant Borel probability measures associated with these actions.
arxiv  

Measurement Invariance Conventions and Reporting: The State of the Art and Future Directions for Psychological Research.

Developmental Review, 2016
D. Putnick, M. Bornstein
semanticscholar   +1 more source

On invariant measures [PDF]

Bulletin of the American Mathematical Society, 1960
openaire   +2 more sources

In vivo Terahertz Sensing of Skin Cancer Patients

Advanced Photonics Research, EarlyView.
This study presents the first in vivo measurements of skin cancer patients in a hospital setting using a handheld THz probe. Furthermore, a new analysis approach is developed to generate a patient‐normalized THz response function, which enables clear contrast to be seen between cancer and healthy skin of the same patient.The first in vivo study of skin
Jacob J. Young, Benjamin G. Page, Arturo I. Hernandez‐Serrano, Joseph Hardwicke, Emma Pickwell‐MacPherson   +4 more
wiley   +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

Reliability, factor structure, and measurement invariance of the Dominic Interactive across European countries: Cross-country utility of a child mental health self-report. [PDF]

, 2015
Rowella Kuijpers, Roy Otten, Ad A. Vermulst, Ondine Pez, Adina Bitfoi, Mauro Giovanni Carta, Dietmar Goelitz, Katherine M. Keyes, Ceren Koç, Sigita Lesinskienė, Zlatka Mihova, Rutger C. M. E. Engels, Viviane Kovess–Masféty   +12 more
openalex   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +1 more source

Exploration of Half‐Cycle Length of Converging Circular Wavy Duct with Diverging‐Outlet: Turbulent Water Dynamics

Advanced Theory and Simulations, EarlyView.
Increasing half‐cycles intensifies turbulence due to enhanced vortex interactions and flow separation at the diverged‐outlets. Longer wavy ducts are shown to increase flow acceleration, resulting in greater output velocities and more turbulent‐kinetic‐energy production. Wave‐period plays a crucial role in determining turbulent intensity, with amplitude
I. L. Animasaun, Taseer Muhammad, Se‐Jin Yook   +2 more
wiley   +1 more source

FMint: Bridging Human Designed and Data Pretrained Models for Differential Equation Foundation Model for Dynamical Simulation

Advanced Theory and Simulations, EarlyView.
FMint is introduced as a multi‐modal foundation model that integrates human‐designed solvers and data‐driven methods for fast, accurate simulation of dynamical systems. FMint leverages in‐context learning within a transformer‐based framework to refine coarse numerical solutions.
Zezheng Song, Jiaxin Yuan, Haizhao Yang
wiley   +1 more source