Results 21 to 30 of about 7,341,189 (200)

Evaluation of Different Development Possibilities of Distribution Grid State Forecasts

open access: yesEnergies, 2020
The number of renewable energy systems is still increasing. To reduce the worldwide CO2 emissions, there will be even more challenges in the distribution grids like currently upcoming charging stations or heat pumps. All these new electric systems in the
Jessica Hermanns   +6 more
doaj   +1 more source

Calculation and Analysis of Carbon Emissions in the Construction Industry of Zhejiang Province [PDF]

open access: yesE3S Web of Conferences, 2023
High rise buildings with large volume, high energy consumption, and high carbon emission base have become the focus of emission reduction work in public building types.
Wang Hanyun   +5 more
doaj   +1 more source

Polymer/molecular semiconductor all-organic composites for high-temperature dielectric energy storage

open access: yesNature Communications, 2020
Dielectric polymers are widely used in electrostatic energy storage but suffer from low energy density and efficiency at elevated temperatures. Here, the authors show that all-organic composites containing high-electron-affinity molecular semiconductors ...
Chao Yuan   +13 more
doaj   +1 more source

Effects of liquids immersion and drying on the surface properties of HTV silicone rubber: characterisation by contact angle and surface physical morphology

open access: yesHigh Voltage, 2019
High-temperature vulcanised (HTV) silicone rubber composite insulator has been widely used in extra-high and ultra-high transmission lines due to its excellent electrical and mechanical performance.
Yanfeng Gao   +6 more
doaj   +1 more source

Influence of frequency on the surface discharge characteristics of PEEK under positive repetitive square voltage

open access: yesHigh Voltage, 2020
In this study, the surface discharge current pulses of polyetheretherketone (PEEK) material under positive repetitive square voltage in a nitrogen atmosphere are measured.
Zhuodong Yang   +8 more
doaj   +1 more source

Short-Term Photovoltaic Power Forecasting Based on VMD and ISSA-GRU

open access: yesIEEE Access, 2021
Photovoltaic (PV) power generation is affected by many meteorological factors and environmental factors, which has obvious intermittent, random, and volatile characteristics.
Pengyun Jia   +3 more
doaj   +1 more source

A Bilayer High-Temperature Dielectric Film with Superior Breakdown Strength and Energy Storage Density

open access: yesNano-Micro Letters, 2023
Highlights A bilayer dielectric film is prepared via coating boron nitride nanosheets (BNNSs) by solution casting on the surface of polyethylene terephthalate (PET) film. The BNNS layer acts as the efficient barrier layer to suppress the charge injection,
Jiang-Bo Ping   +6 more
doaj   +1 more source

Research on Performance of Real-Time Simulation Based on Inverter-Dominated Power Grid

open access: yesIEEE Access, 2021
This paper proposes two methods to improve the performance in real-time simulation. The increased inverter-based generations are gradually shifting the operation of the power grid.
Xinya Song   +8 more
doaj   +1 more source

Small-signal stability analysis for the multi-terminal VSC MVDC distribution network; a review

open access: yesThe Journal of Engineering, 2019
The stable operation and control of the proposed terrestrial multi-terminal Voltage Source Converter (VSC) medium voltage DC (MVDC) distribution network is a remarkable motivation towards developing the future universal DC grid interconnecting the low ...
Patrobers Simiyu   +6 more
doaj   +1 more source

Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)

open access: yesNanocomposites, 2018
In this study, the high-energy ball-milled nanodiamonds (MNDs) are carefully treated with low-temperature annealing and mixed acids to obtain carboxylated MNDs (cMNDs). This process not only removes impurities but also grafts oxygen containing functional
Yuansai Zhang   +7 more
doaj   +1 more source

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