Results 41 to 50 of about 6,735 (287)

A Massive Hot Jupiter Orbiting a Metal-rich Early M Star Discovered in the TESS Full-frame Images

open access: yesThe Astronomical Journal, 2023
Observations and statistical studies have shown that giant planets are rare around M dwarfs compared with Sun-like stars. The formation mechanism of these extreme systems has remained under debate for decades. With the help of the TESS mission and ground-
Tianjun Gan   +43 more
doaj   +1 more source

Moist Convection in the Giant Planet Atmospheres

open access: yesRemote Sensing, 2022
The outer planets of our Solar System display a myriad of interesting cloud features, of different colors and sizes. The differences between the types of observed clouds suggest a complex interplay between the dynamics and chemistry at play in these ...
Csaba Palotai   +3 more
doaj   +1 more source

Correlates of persistence in remnant populations of two Critically Endangered cockatoos

open access: yesAnimal Conservation, Volume 25, Issue 6, Page 811-824, December 2022., 2022
A challenge with endangered species that have disappeared from most of their range is to identify the conditions that allow survival at just a few sites. We located remnant populations of the CR yellow‐crested cockatoo and CR citron‐crested cockatoo and used remotely sensed socio‐ecological variables to explain why they avoided local extinction.
A. Reuleaux   +7 more
wiley   +1 more source

Pressure‐Driven Reactivity in Dense Methane‐Nitrogen Mixtures

open access: yesAngewandte Chemie, EarlyView.
CH4 and N2 are abundant molecules in our solar system and are the primary constituents of Titan's atmosphere. Under extreme pressures and temperatures within a diamond anvil cell, CH4 and N2 are demonstrated to react to form a range of compounds, dependent on the conditions and initial concentrations.
Hannah A. Shuttleworth   +13 more
wiley   +2 more sources

Elastomeric Nanocomposite with Solvent‐Free, One Step, In Situ Shear Exfoliation of Graphite to Graphene

open access: yesAdvanced Materials Interfaces, EarlyView.
This work presents a novel strategy for nanocomposite fabrication that imparts high shear and elongational forces, overcoming the interlayer van der Waals forces within bulk 2D materials and facilitating their exfoliation in elastomers. Additionally, the high shear forces promote effective nanoparticle dispersion and in situ bond formation, leading to ...
Ashiqur Rahman   +5 more
wiley   +1 more source

Synthesis of Bimetallic (Iron–Cobalt) Single Atom Catalysts for Electrochemical Detection of Nitrites

open access: yesAdvanced Materials Technologies, EarlyView.
A CO2 laser‐assisted solid‐state synthesis of a bimetallic single‐atom catalyst is presented. The resulting material consists of a 3D porous graphene support with iron and cobalt atoms anchored as single atoms. Through electrochemical methods, the material's efficiency is demonstrated in the sensitive and selective determination of nitrite, mimicking ...
Guillermo Tostado‐Blazquez   +5 more
wiley   +1 more source

Formation of Giant Planets [PDF]

open access: yesAIP Conference Proceedings, 2004
This is a descriptive and non‐mathematical summary of giant planet formation theories. There are two end‐member models, core accretion and disk instability. In the core accretion model, several to ten Earth masses of solid (ice and rock) accumulate and this promotes subsequent gas accretion.
openaire   +4 more sources

Two Steps Li Ion Storage Mechanism in Ruddlesden–Popper Li2La2Ti3O10

open access: yesAdvanced Science, EarlyView.
This study demonstrates the performance of Ruddlesden‐Popper Li₂La₂Ti₃O₁₀ as an anode material for lithium‐ion batteries, achieving 170 mAh·g⁻¹ capacity with two voltage plateaus from lithium ions stored at different sites. Unique unit cell changes during lithiation ensure high structural stability, leading to 88% capacity retention after 1000 cycles ...
Mi Jang   +8 more
wiley   +1 more source

Polarized Color Filters Using Colloidal Quantum Rod Nanocrystals for Advanced High‐Performance Displays

open access: yesAdvanced Science, EarlyView.
This groundbreaking research has advanced the utilization of quantum rods (QRs) for the emission of linearly polarized light, resulting in exceptional color saturation and enhanced display efficiency. The developed filter demonstrates a polarization degree of up to 0.67 and an impressive ambient contrast ratio (ACR) of 263:1, setting the stage for ...
Jianxin Song   +12 more
wiley   +1 more source

Planetary Engulfment Prognosis within the ρ CrB System

open access: yesThe Astrophysical Journal, 2023
Exoplanets have been detected around stars at various stages of their lives, ranging from young stars emerging from formation to the latter stages of evolution, including white dwarfs and neutron stars.
Stephen R. Kane
doaj   +1 more source

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