Results 41 to 50 of about 12,585 (190)

Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data

open access: yesEarth and Planetary Physics
Accurate modeling of Earth’s ionospheric F-region currents is essential for refining geomagnetic field models and understanding magnetosphere-ionosphere coupling. In this study, we develop averaged models to characterize F-region currents using magnetic data from the MSS-1 (Macau Science Satellite-1) and Swarm satellite missions. Our approach employs a
JuYuan Xu, HongBo Yao, Keke Zhang
openaire   +2 more sources

Solar System Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory

open access: yesSpace Science Reviews, 2022
The overarching theme of the Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS), an Astrophysics MIDEX-class mission concept, is Following water from galaxies, through protostellar systems, to Earth’s oceans.
C. Anderson   +8 more
semanticscholar   +1 more source

Spectral Decomposition of Chemical Semantics for Activity Cliffs‐Aware Molecular Property Prediction

open access: yesAdvanced Science, EarlyView.
PrismNet mimics chemical intuition by functioning as a computational prism, refracting molecular graphs into complementary semantic views and spectral frequencies. This dual‐decomposition strategy effectively captures both global topologies and subtle “activity cliff” perturbations.
Chaoyang Xie   +9 more
wiley   +1 more source

On the nature of the Be star HR 7409 (7 Vul)

open access: yes, 2011
HR 7409 (7 Vul) is a newly identified Be star possibly part of the Gould Belt and is the massive component of a 69-day spectroscopic binary. The binary parameters and properties of the Be star measured using high-dispersion spectra obtained at Ondrejov ...
A. Kawka   +73 more
core   +1 more source

A review of key planning and scheduling in the rail industry in Europe and UK [PDF]

open access: yes, 2015
Planning and scheduling activities within the rail industry have benefited from developments in computer-based simulation and modelling techniques over the last 25 years. Increasingly, the use of computational intelligence in such tasks is featuring more
Blacktop, K.   +3 more
core   +2 more sources

Direct Observation of Electric‐Field‐Driven Phase Transitions Associated with Energy Storage in Antiferroelectric Films

open access: yesAdvanced Science, EarlyView.
The electric‐field‐driven antiferroelectric‐to‐ferroelectric phase transition in epitaxial PbZrO3 films is directly visualized by in situ aberration‐corrected scanning transmission electron microscopy. A sequential transition pathway involving an orthorhombic ferrielectric phase and a monoclinic ferroelectric phase, ultimately stabilizing into a ...
Yan‐Peng Feng   +6 more
wiley   +1 more source

Rational design of integrated CuO@CoxNi1−x(OH)2 nanowire arrays on copper foam for high-rate and long-life supercapacitors [PDF]

open access: yes, 2019
Rational electrode architectural design, favorable electrode composition, and versatile synthesis approach play a significant role in developing advanced electrodes for high-performance supercapacitor.
Chen   +53 more
core   +1 more source

Lattice Carbon‐Mediated Ultralow‐Barrier C–C Coupling for Selective CO Electroreduction to Ethylene

open access: yesAdvanced Science, EarlyView.
Combined DFT and molecular dynamics simulations reveal that while the lattice carbon at the MXene edge cannot directly bind CO2 to form ethylene, it acts as an active center to promote C─C coupling between adjacent *CO intermediates for ethylene production.
Jiangke Tao   +5 more
wiley   +1 more source

Interfacial Ru–O–W Orbital Coupling Enables Lattice Oxygen Stabilization for Enhanced Acidic OER

open access: yesCarbon Energy, EarlyView.
A RuO2/WO3 electrocatalyst with strong interfacial Ru–O–W bonds exhibits optimized Ru–O interactions, enhancing intrinsic activity and stability for acidic OER. The WO3 support modulates the electronic structure of RuO2 and promotes oxo‐intermediate deprotonation, delivering a low overpotential of 203 mV at 10 mA cm−2 and sustained operation beyond 200 
Tongzhou Wang   +9 more
wiley   +1 more source

Consequences of long-term infrastructure decisions—the case of self-healing roads and their CO2 emissions [PDF]

open access: yes, 2019
What could be the reduction in greenhouse gas emissions if the conventional way of maintaining roads is changed? Emissions of greenhouse gases must be reduced if global warming is to be avoided, and urgent political and technological decisions should be ...
Fry, Jacob   +6 more
core   +1 more source

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