Results 281 to 290 of about 47,304 (316)

Polyoxometalate as Hydrogen–Electron Hub in Metal–Organic Complex for Electrocatalytic Nitrate Reduction to Ammonia

Advanced Science, EarlyView.
To tackle low electrocatalytic nitrate reduction to ammonia efficiency in neutral media, this work designs chain‐like dinuclear/trinuclear polyoxometalate‐based metal‐organic complexes. Metal clusters provide nitrate adsorption/activation sites, while polyoxometalates (POMs) drive water dissociation to generate active hydrogen (*H) that migrates to ...
Qiushuang Jiang, Xinming Wang, Shengji Tian, Haijun Pang, Yongbin Song, Huiyuan Ma   +5 more
wiley   +1 more source

Machine Learning Driven Window Blinds Inspired Porous Carbon‐Based Flake for Ultra‐Broadband Electromagnetic Wave Absorption

Advanced Science, EarlyView.
Inspired by the regulation mechanism of window blinds, this study designs an electromagnetic wave‐absorbing metamaterial. By introducing the magneto‐electric coupling concept and integrating it with an artificial intelligence‐based data‐driven collaborative optimization strategy, the material optimizes impedance matching performance and enhances loss ...
Zhe Wang, Wanchong Li, Lu Feng, Zaiqing Yang, Shicheng Jin, Dongxu Zhao, Xiaoyong Wu, Yan Wang, Yu Mao, Jinsong Zhang   +9 more
wiley   +1 more source

The Future of Artificial Intelligence in Surgery. [PDF]

Cureus
Hamilton A.
europepmc   +1 more source

The spectral evolution of white dwarfs: where do we stand? [PDF]

Astrophys Space Sci
Bédard A.
europepmc   +1 more source

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Free-Floating Planets and Stellar Clusters

American Scientist, 2002
The existence of planets outside our solar system has been a licate matter in astronomy ever since the 16th-century philosopher Giordano Bruno was burned at the stake for (among other things) proposing that the universe holds an infinite number of other worlds.
Hurley, Jarrod, Shara, Michael
openaire   +2 more sources

Free-floating Planets in Orion

Science, 2000
ASTRONOMY Extrasolar planets and brown dwarfs have been discovered with increasing frequency around young stars, yet still more discoveries will be needed to understand conditions under which a star or a planet will form from the collapse of a molecular cloud or other processes.
openaire   +1 more source

Simulation of Images of Protoplanetary Disks after Collision with Free-Floating Planets

Astronomy letters
Observational manifestations of disturbances in a protoplanetary disk caused by a collision with a massive planet are studied. It is assumed that the planet moves along a parabolic trajectory that intersects the disk plane near the star.
T. Demidova, V. Grigoryev
semanticscholar   +1 more source

On the capture of free floating planets

2015
Diese Masterarbeit bearbeitet die Interaktion zwischen einem free-floating planet und einem gebundenen Stern-Planeten System. Besonders wird dabei auf den Fall einge- gangen, in dem der free-floating planet vom System eingefangen wird und auf einer Bahn gravitativ gebunden bleibt. Sogenannte free-floating planets werden laufend entdeckt.
openaire   +1 more source

Constraints on the free-floating planets supporting aqueous life

Acta Astronautica, 2011
Abstract Optically thick atmospheres provide conditions for life on free-floating planets (FFPs). These atmospheres may ensure conservation of energy released by radio-nuclides and the long-term thermal stability of a necessary life-supporting liquid solvent (e.g. water) on the surface.
openaire   +1 more source