Results 41 to 50 of about 7,984 (70)

An oscillation source tracing method for renewable energy flexible DC transmission systems based on interaction energy weight factor and energy flow path deduction

open access: yesInternational Journal of Electrical Power & Energy Systems
This paper proposed an oscillation source tracing method based on the interaction energy weight factor and graph theory deduction, concerning the oscillation source tracing in flexible DC transmission systems connected with new energy stations.
Jing Ma   +5 more
doaj   +1 more source

Aggregated regulation and coordinated scheduling of PV-storage integrated 5G base stations considering PV-load uncertainty

open access: yesInternational Journal of Electrical Power & Energy Systems
Photovoltaic (PV)-storage integrated 5G base station (BS) can participate in demand response on a large scale, conduct electricity transaction and provide auxiliary services, thus reducing the high electricity consumption of 5G BSs and increasing the ...
Congfei Li   +5 more
doaj   +1 more source

Understanding crystallization pathways leading to manganese oxide polymorph formation

open access: yesNature Communications, 2018
Minor variations in synthesis conditions can redirect crystallization pathways through different nonequilibrium intermediates. Here, the authors present a theoretical framework to predict which polymorphs appear during MnO2 precipitation, which is ...
Bor-Rong Chen   +11 more
doaj   +1 more source

Giant exchange splitting in the electronic structure of A-type 2D antiferromagnet CrSBr

open access: yesnpj 2D Materials and Applications
We present the evolution of the electronic structure of CrSBr from its antiferromagnetic ground state to the paramagnetic phase above T N  = 132 K, in both experiment and theory.
Matthew D. Watson   +8 more
doaj   +1 more source

Resilience enhancement of distribution networks based on demand response under extreme scenarios

open access: yesIET Renewable Power Generation
In the context of rare but high‐impact extreme scenarios, such as natural disasters, it is crucial to utilize all available resources, including microgrids and distributed power sources, to restore critical loads in the distribution network as much as ...
Gang Xu, Zixuan Guo
doaj   +1 more source

Photolytic activation of Ni(II)X2L explains how Ni-mediated cross coupling begins

open access: yesNature Communications
Nickel photocatalysis has recently become vital to organic synthesis, but how the Ni(II)X2L pre-catalyst (X = Cl, Br; L = bidentate ligand) becomes activated to Ni(I)XL has remained puzzling and is typically addressed on a case-by-case basis.
Max Kudisch   +13 more
doaj   +1 more source

Research on high-frequency transient characteristics of wind farm integrated transmission systems based on excitation-response port cascaded network

open access: yesInternational Journal of Electrical Power & Energy Systems
Considering the agglomeration effect of renewable energy, traditional “equivalence-aggregation” models of wind farms fail to accurately depict detailed fault characteristics.
Jing Ma, Zhuoer Gao, Jun Cao
doaj   +1 more source

TiSe2 is a band insulator created by lattice fluctuations, not an excitonic insulator

open access: yesnpj Computational Materials
TiSe2 is a narrow-gap insulator with a rich array of unique properties. In addition to being a superconductor under certain modifications, it is commonly thought to be a rare realisation of an excitonic insulator.
Dimitar Pashov   +4 more
doaj   +1 more source

Research and outlook on techniques for improving the quality of substation monitoring data

open access: yesZhejiang dianli
With the advancement of digitalization and intelligence in substation protection and monitoring systems, the volume of multi-source heterogeneous data generated by secondary systems has increased sharply, with continuously rising dimensionality. This has
ZHENG Xiang   +6 more
doaj   +1 more source

Operando X-ray imaging reveals size-dependent evolution of cobalt oxide thermochemical material during thermal redox cycles

open access: yesNature Communications
Multivalent metal oxides are promising thermochemical materials (TCMs) for energy storage and conversion owing to their high energy density, air compatibility, and high-temperature stability.
Yuxiang Peng   +11 more
doaj   +1 more source

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