Results 81 to 90 of about 562,498 (283)
Origin of Phobos and Deimos: Orbital Evolution Shortly after Formation from a Potential Dislocation
The Planetary Science JournalThis paper deals with the formation and evolution of Mars’ moons, Phobos and Deimos, assuming the dislocation of a larger progenitor as the origin of these moons. The study by R. Hyodo et al.
Ryan Dahoumane +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Configuration Design Method of Mega Constellation for Low Earth Orbit Observation
Space: Science & TechnologyThe configuration optimization design of Low Earth Orbit observation mega constellation in complex space environment is a nonlinear problem that is difficult to solve analytically.
Yuheng Yang +5 more
doaj +1 more source
Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions
Advanced Functional Materials, EarlyView.DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng +7 more
wiley +1 more source
On the Divergent Evolution of Io and Europa as Primordial Ocean Worlds
The Astrophysical JournalThe Galilean moons exhibit a decrease in bulk density with distance from Jupiter, which may reflect differences in evolutionary paths and water loss. Early in its history, Jupiter was more luminous, which may have driven substantial atmospheric escape on
Yannis Bennacer +2 more
doaj +1 more source
Autonomous navigation of the space debris collector [PDF]
INCAS Bulletin, 2019 The article discusses potential use of proposed by the authors configuration of onboard system of autonomous navigation and movement control of space debris collector to operate at GSO.
Dmitriy A. KOZOREZ, Dmitriy M. KRUZHKOV
doaj +1 more source
Advanced Functional Materials, EarlyView.This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies +8 more
wiley +1 more source
EOS Science Poster Series: AIR-Our Outer Atmosphere [PDF]
, 2007 This poster depicts how NASA scientists are working to understand the outer atmosphere (air). Satellite images, graphs, and pictures complement the fact-filled information.
core
Scientific Objectives, Measurement Needs, and Challenges Motivating the PARAGON Aerosol Initiative [PDF]
, 2004 Aerosols are involved in a complex set of processes that operate across many spatial and temporal scales. Understanding these processes, and ensuring their accurate representation in models of transport, radiation transfer, and climate, requires ...
Anderson, Theodore L. +8 more
core +1 more source
Allometric scaling, size distribution and pattern formation of natural cities
Palgrave Communications, 2015 There has been a strong interest in more cogent definitions on economies of scale to reveal general urban growth laws and to develop urban performance metrics.
Xintong Li +3 more
semanticscholar +1 more source