Results 61 to 70 of about 3,501 (221)

Electride‐Induced Electronic Modulation of Ruthenium Catalyst for Highly Efficient Alkaline Hydrogen Evolution

open access: yesAdvanced Science, EarlyView.
Electrides offer unique opportunities as catalyst supports for hydrogen evolution reactions. This study presents an electride‐supported Ru/Nd2ScSi2 catalyst exhibiting outstanding hydrogen evolution reaction performance and excellent stability. Anionic Ru species on the electride surface facilitate water dissociation and optimize hydrogen adsorption ...
Zhiqi Wang   +5 more
wiley   +1 more source

Simultaneous Multiscale Data Assimilation Using Scale‐ and Variable‐Dependent Localization in EnVar for Convection Allowing Analyses and Forecasts: Methodology and Experiments for a Tornadic Supercell

open access: yesJournal of Advances in Modeling Earth Systems, 2023
This study introduces a simultaneous multiscale data assimilation method by implementing model space spatial scale‐dependent localization (SDL) and variable‐dependent localization (VDL) within an ensemble variational system.
Yongming Wang, Xuguang Wang
doaj   +1 more source

Hamiltonian symmetries in auxiliary-field quantum Monte Carlo calculations for electronic structure [PDF]

open access: yes, 2019
We describe how to incorporate symmetries of the Hamiltonian into auxiliary-field quantum Monte Carlo calculations (AFQMC). Focusing on the case of Abelian symmetries, we show that the computational cost of most steps of an AFQMC calculation is reduced ...
Chan, Garnet Kin-Lic   +2 more
core   +2 more sources

Oxygen‐Driven Structural Reorganization by Trace Water Enabling Fast Li‐Ion Transport in a Pliable Solid Electrolyte

open access: yesAdvanced Energy Materials, EarlyView.
Trace water is acting as a constructive mediator in 2LiCl–GaF3, markedly increasing ionic conductivity while reorganizing local coordination. Hydration creates localized Li+ solvation environments and partially dissociates ion pairs, enhancing Li‐ion mobility.
Youngkyung Kim   +10 more
wiley   +1 more source

Severe storms as an example of a natural hazard in the urban area – case studies of the area of Warsaw, Poland

open access: yesMiscellanea Geographica: Regional Studies on Development, 2022
The main objective of this research was to determine the synoptic and thermodynamic conditions accompanying the development of two severe thunderstorms that caused significant damage in Warsaw.
Piasecki Krzysztof, Żmudzka Elwira
doaj   +1 more source

Vacancy defect‐induced electron homing breaks phosphodiester bonds for RNA depletion‐driven cancer therapy

open access: yesBMEMat, EarlyView.
Illustration of 5% S‐vacancy Bi2S3 mediated phosphodiester bonds cleavage in RNA of hepatocellular carcinoma cells, which suppressing ERI3 expression, inhibiting cell proliferation and promoting apoptosis. Abstract Genome‐wide hypertranscription is a hallmark of malignant progression.
Chuncheng Yang   +12 more
wiley   +1 more source

Simulating the storm environment responsible for Nepal's first observed tornado

open access: yesWeather and Climate Extremes, 2021
A high-resolution numerical forecast model was used to simulate the meteorological conditions leading up to the March 31st, 2019 severe weather event that produced Nepal's first-ever observed tornado.
Jonathan David Douglas Meyer   +2 more
doaj   +1 more source

A Crystallographic Shear Driven by Oxygen Insertion in (LuFeO3)nLuFe2O4

open access: yesChemistryEurope, EarlyView.
Layered structures (LuFeO3)nLuFe2O4 exhibit a common structural transformation upon oxygen uptake. Although the LuFeO3 units do not directly participate in oxygen insertion, these inactive layers nevertheless influence the temperature at which oxygen absorption occurs.
Tianyu Li   +7 more
wiley   +1 more source

Are simulated aerosol-induced effects on deep convective clouds strongly dependent on saturation adjustment? [PDF]

open access: yes, 2012
Three configurations of a bulk microphysics scheme in conjunction with a detailed bin scheme are implemented in the Weather Research and Forecasting (WRF) model to specifically address the role of the saturation adjustment assumption (i.e., condensing ...
Lebo, Z. J.   +2 more
core   +1 more source

Mesoscale and microphysical processes leading to extreme hourly rainfall prior to the merger of two mesoscale convective systems in Central China

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Short‐term extreme rainfall can be produced by the variation of low‐level warm moist airflow during mesoscale convective systems (MCSs) approaching another. The cold outflow of the rapidly moving MCS intensifies the warm moist airflow in front, enhancing the convergence and ascending motion in the quasi‐stationary MCS.
Xiaoyu Gao   +3 more
wiley   +1 more source

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