Results 21 to 30 of about 953 (152)

Bridging Green Chemistry and Circular Economy: A Pathway to Sustainable Polyester Plastics Through Feedstock, Synthesis, and Waste Upcycling. [PDF]

open access: yesAdv Sci (Weinh)
This review summarizes green and low‐carbon strategies throughout the entire life cycle of polyester plastics, including sustainable monomer synthesis, optimization polymerization, efficient recycling, and advanced upcycling technologies. The synergistic implementation of these strategies is expected to significantly promote the development of a ...
Li J   +5 more
europepmc   +2 more sources

Dual-transformer-based hybrid resonant three-level ZCS converter

open access: yesEnergy Reports, 2021
A hybrid resonant three-level converter comprised of dual transformers is proposed in this paper, which is suitable for the application of distributed photovoltaic power accessing the medium voltage dc distribution network.
Syed Waqar Azeem   +4 more
doaj   +1 more source

AEFormer: Zoom Camera Enables Remote Sensing Super-Resolution via Aligned and Enhanced Attention

open access: yesRemote Sensing, 2023
Reference-based super-resolution (RefSR) has achieved remarkable progress and shows promising potential applications in the field of remote sensing. However, previous studies heavily rely on existing and high-resolution reference image (Ref), which is ...
Ziming Tu   +7 more
doaj   +1 more source

Possible Tetraquark Explanations for the Proposed Zcs(4000)+ and Zcs(4220)+ [PDF]

open access: yes, 2021
The recently proposed Zcs(4000)+ and Zcs(4220)+ structures are investigated using a first-order tetraquark mass formula. This mass relationship is based on weakly bound J/Ψ(c c-bar) + K+ (u s-bar) meson clusters and their excited states. The first-order tetraquark mass formula provides a reasonable prediction (within 8%) of the measured masses.
openaire   +1 more source

Estudo experimental comparativo das perdas entre seis diferentes conversores do tipo boost com 1,6 kW, usando IGBT's

open access: yesEletrônica de Potência, 1996
Este trabalho apresenta uma análise comparativa das perdas experimentais entre um novo -conversar ZCS-PWM boost e cinco diferentes topologias para o conversor boost, operando com potência nominal de 1.6kW e frequência de chaveamento de ZOkHz, usando ...
Carlos A Canesin, Ivo Barbi
doaj   +1 more source

About the exotic structure of Zcs

open access: yesNuclear Physics B, 2021
Very recently a new hadronic structure around 3.98 GeV was observed in BESIII experiment. From its decay modes, it is reasonable for people to assign it to the category of exotic state, say Zcs+, the stranged-parter of Zc(3900).
Bing-Dong Wan, Cong-Feng Qiao
doaj   +1 more source

A New Full Resonant ZCS Forward Converter Having Wide ZCS Domain.

open access: yesIEEJ Transactions on Industry Applications, 1995
A new full resonant ZCS forward converter intended to improve undesirable performances of the conventional ZCS converter is proposed and many of operational items, such as ZCS domain, amplitude variation, efficiency, dynamic load effect and cross regulation, are successfully confirmed by experiments and theoretical analysis.
Kiwamu Hino   +2 more
openaire   +2 more sources

Enhanced photoelectrochemical performance of P-doped g‑C3N4/Zn0.5Cd0.5S heterojunction photocathode for water splitting

open access: yesJournal of Saudi Chemical Society, 2022
Photoelectrochemical (PEC) hydrogen evolution reaction at semiconductor photocathode in the presence of visible light is a promising way to harvest renewable energy.
Waseem Zeb   +8 more
doaj   +1 more source

Full Soft-Switching Ultra-High Gain DC/DC Converter Using Three-Winding Coupled-Inductor with Modular Scalability for Renewable Energy Applications [PDF]

open access: yesAUT Journal of Electrical Engineering, 2022
This paper proposes a new non-isolated single-switch DC/DC converter with an ultra-high voltage gain, low input current ripple, low voltage stress, soft-switching operation, and modular scalability for renewable sources applications.
Sara Hasanpour   +2 more
doaj   +1 more source

Morpho-physiological and biochemical responses in wheat foliar sprayed with zinc-chitosan-salicylic acid nanoparticles during drought stress

open access: yesPlant Nano Biology, 2023
Drought is considered as a significant stress that hampers growth, development as well as productivity of wheat crop around the globe. The present investigation was performed to determine the changes induced by drought on morpho-physiology, antioxidative
Debjyoti Das   +6 more
doaj   +1 more source

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