Results 211 to 220 of about 43,779 (305)
Primordial black holes and their gravitational-wave signatures. [PDF]
Bagui E +20 more
europepmc +1 more source
Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser
An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu +9 more
wiley +1 more source
Coronal dimmings and what they tell us about solar and stellar coronal mass ejections. [PDF]
Veronig AM +12 more
europepmc +1 more source
Gamma-ray bursts from stellar mass accretion disks around black holes
S. Woosley
semanticscholar +1 more source
The Cu‐Zn3In2S6 photocatalyst (Cu‐ZISV) with asymmetric Cu‐SV‐Zn sites was designed and synthesized to boost peroxymonosulfate (PMS) activation kinetics. The side‐on photo‐Fenton‐like reaction by the asymmetric Cu‐SV‐Zn site accelerated PMS activation and pollutant degradation, and the first‐order kinetic constant of Cu‐ZISV increased by 4.87 times ...
Jiaqi Hu +7 more
wiley +1 more source
Unitary Entities Are the True "Atoms". [PDF]
Jeynes C, Parker MC.
europepmc +1 more source
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong +7 more
wiley +1 more source
A high-velocity star recently ejected by an intermediate-mass black hole in M15. [PDF]
Huang Y +6 more
europepmc +1 more source
Direct Recycling of Mixed‐Oxide Cathodes: Balancing Cost, Performance and Environmental Trade‐Offs
Direct regeneration routes for mixed‐oxide lithium‐ion battery cathodes are systematically compared using harmonized techno‐economic, electrochemical, and environmental metrics. Solid‐state, hydrothermal, molten salt, electrochemical, and chemical relithiation methods are benchmarked to identify performance, cost, and sustainability trade‐offs.
Evgenii Beletskii +8 more
wiley +1 more source
Global preventive feedback of powerful radio jets on galaxy formation. [PDF]
Cen R.
europepmc +1 more source

