Results 91 to 100 of about 22,702,715 (393)
Advanced Functional Materials, EarlyView.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Equilibria in the secular, non-coplanar two-planet problem
, 2009 We investigate the secular dynamics of a planetary system composed of the parent star and two massive planets in mutually inclined orbits. The dynamics are investigated in wide ranges of semi-major axes ratios (0.1-0.667), and planetary masses ratios (0 ...
Adams +48 more
core +1 more source
Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source
The planetary commons: A new paradigm for safeguarding Earth-regulating systems in the Anthropocene
Proceedings of the National Academy of Sciences of the United States of AmericaThe Anthropocene signifies the start of a no-analogue trajectory of the Earth system that is fundamentally different from the Holocene. This new trajectory is characterized by rising risks of triggering irreversible and unmanageable shifts in Earth ...
J. Rockström +21 more
semanticscholar +1 more source
Theoretical models of planetary system formation: mass vs. semi-major axis [PDF]
, 2013 Context. Planet formation models have been developed during the past years to try to reproduce what has been observed of both the solar system and the extrasolar planets.
Y. Alibert +6 more
semanticscholar +1 more source
Saving Planetary Systems: Dead Zones and Planetary Migration [PDF]
The Astrophysical Journal, 2007 The tidal interaction between a disk and a planet leads to the planet's migration. A long-standing question regarding this mechanism is how to stop the migration before planets plunge into their central stars. In this paper, we propose a new, simple mechanism to significantly slow down planet migration, and test the possibility by using a hybrid ...
Edward W. Thommes +3 more
openaire +5 more sources
Advanced Functional Materials, EarlyView.Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth +8 more
wiley +1 more source
, 2017 The K2-33 planetary system hosts one transiting ~5 R_E planet orbiting the young M-type host star. The planet's mass is still unknown, with an estimated upper limit of 5.4 M_J. The extreme youth of the system (
Cubillos, P. E. +6 more
core +1 more source
A detailed dynamical investigation of the proposed QS Virginis planetary system [PDF]
, 2013 In recent years, a number of planetary systems have been proposed to orbit-evolved binary star systems. The presence of planets is invoked to explain observed variations in the timing of mutual eclipses between the primary and secondary components of the
J. Horner +5 more
semanticscholar +1 more source
Planetary systems in a star cluster I: the Solar system scenario [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Young stars are mostly found in dense stellar environments, and even our own Solar system may have formed in a star cluster. Here, we numerically explore the evolution of planetary systems similar to our own Solar system in star clusters.
F. F. Dotti +3 more
semanticscholar +1 more source