Results 101 to 110 of about 22,726,921 (239)
The Astrophysical JournalWe computationally investigated the chemical evolution of H _2 O:O _2 ices (6:1 ratio) under irradiation by cosmic-ray analogs (0.8 MeV H ^+ ) at 9, 50, and 100 K to understand the implications the chemical evolution of O _2 -containing ices in space ...
J. R. C. Silva +3 more
doaj +1 more source
GNSS Satellite Orbit Validation Using Satellite Laser Ranging [PDF]
, 2013 With a total of four new regional and global navigation sa tellite systems that have launched first satellites or even started an operational serv ice, the GNSS landscape has experienced major changes in recent years.
Steigenberger, Peter +2 more
core
Spin Splitting Coupled Visible‐Light Driven Injection Photocurrent in Bilayer Altermagnets
Advanced Science, EarlyView.Interlayer engineering in bilayer altermagnets continuously tunes visible‐light injection photocurrents, accompanied by controllable altermagnetic spin splitting. Enhanced interlayer hybridization reconstructs the band and quantum geometries, leading to opposite evolution of the normal and magnetic injection currents and establishing a direct ...
Huanhuan Yang +3 more
wiley +1 more source
The Astrophysical JournalIn this continuation of our study on the chemical evolution of H _2 O:O _2 ices (6:1 ratio) under analog cosmic-ray irradiation (0.8 MeV H ^+ ) at 9, 50, and 100 K, we investigate changes in the reaction pathways that influence the formation and ...
J. R. C. Silva +3 more
doaj +1 more source
Advanced Science, EarlyView.We develop a ligand engineering strategy to construct Ni‐diketimine‐linked COFs with precisely tuned Ni electronic states. By varying the coordinated diketone units, we achieve an optimal electronic configuration that enhances O2 adsorption and lowers the energy barrier for •O2− generation.
Guihong Wu +5 more
wiley +1 more source
An Efficient Method for Measuring the Color of a Natural Satellite with Astrometric Applications
The Astronomical JournalThe Gaia DR3 catalog released in 2022 contains precise broadband photometry for more than one billion stars in the G , BP, and RP passbands, which is very useful for calibrating the differential color refraction (DCR) effect in ground-based observations.
X. Q. Fang, Q. Y. Peng, X. Lu, B. F. Guo
doaj +1 more source
Excitation‐Selective Hydrochromic Upconversion in Zero‐Dimensional Metal Halides
Advanced Science, EarlyView.Excitation wavelength dictates whether moisture speaks. In zero‐dimensional metal halides, the same humidity leaves the upconversion emission unchanged under 980 nm excitation yet triggers a distinct green‐to‐red shift under 1550 nm. This excitation‐selective hydrochromism, governed by the absorption at each wavelength, enables stimulus‐dependent ...
Joo Hyeong Han +6 more
wiley +1 more source
Experimental Examination of Brine and Water Lifetimes after Impact on Airless Worlds
The Planetary Science JournalThe role played by transient impact-induced endogenous brines in the formation of geomorphic features has been proposed on airless worlds such as Europa, Vesta, and Ceres, as well as on worlds with thin atmospheres such as Mars.
Michael J. Poston +6 more
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Advanced Science, EarlyView.We develop bio‐based, star‐branched polyamides from itaconic acid and cadaverine with tunable lower critical solution temperature (LCST) transitions for dynamic solar modulation. Specific metal ion coordination with pyrrolidone moieties drives precise phase transitions via calcium‐induced salting‐in and sodium‐induced salting‐out mechanisms. Formulated
Jie Liu +6 more
wiley +1 more source
Radar Observations of Europa in 2011–2024: New Insights into Radar Scattering Properties
The Planetary Science JournalThree of Jupiter’s Galilean satellites—Europa, Ganymede, and Callisto—are of particular scientific interest due to their icy shells and suspected subsurface oceans.
Tunhui Xie +7 more
doaj +1 more source