Results 1 to 10 of about 2,737 (204)

An AC-DC Interleaved ZCS-PWM Boost Converter With Reduced Auxiliary Switch RMS Current Stress

open access: yesIEEE Access, 2021
The paper proposes a novel interleaved AC-DC ZCS-PWM boost converter that requires the use of just a single active auxiliary switch to assist in the turning off the main power circuit switches with ZCS.
Gerry Moschopoulos   +2 more
exaly   +3 more sources

Synergistic Enhancement of Visible-Light-Driven Photocatalytic H2O2 Production over g-C3N4/ZnCdS by Zn Vacancies and Heterointerface Engineering [PDF]

open access: yesNanomaterials
Hydrogen peroxide (H2O2) is an important green oxidant, and developing efficient visible-light-driven routes for its synthesis is highly desirable. Herein, a CN/ZnV-ZCS composite photocatalyst was constructed by coupling g-C3N4 (CN) with Zn-vacancy ...
Zhenyu Wang   +6 more
doaj   +2 more sources

Investigating Zcs(3985) and Zcs(4000) exotic states in Λb→Zcs−p decays

open access: yesPhysics Letters B
We study the Zcs(3985) and Zcs(4000) exotic states in the decays of Λb baryons through a molecular scenario. In the final state interaction, the Λb→Λc+Ds(⁎)− decays are followed by the Λc+Ds(⁎)− to Zcs−p rescatterings via exchange of a D(⁎) meson.
Yao Yu   +6 more
doaj   +2 more sources

Radicular Pathology in Zirconia and Stainless-Steel Crowns in Primary Posterior Teeth: A Retrospective Comparative Longitudinal Study [PDF]

open access: yesChildren
Background: Zirconia crowns (ZCs) are increasingly used in pediatric dentistry for their esthetic advantages, but evidence regarding their long-term outcomes compared with stainless steel crowns (SSCs) is limited. Methods: This retrospective cohort study
Diana Ram   +3 more
doaj   +2 more sources

Enriched Oxygen Vacancy‐Mediated Efficient Charge Transfer in S‐Scheme ZnO‐VO@Zn0.5Cd0.5S Heterojunction for Rapid U(VI) Removal From Nuclear Wastewater [PDF]

open access: yesAdvanced Science
Efficient charge separation is critical for high‐performance photocatalytic reduction of U(VI) in nuclear wastewater. Employing defect engineering, an oxygen vacancy (VO)‐enriched S‐scheme ZnO‐VO@Zn0.5Cd0.5S (ZnO‐VO@ZCS) heterojunction is constructed for
Cailing Liu   +6 more
doaj   +2 more sources

Comparative Study on the Durability of Stainless Steel Crowns vs. Zirconia Crowns for Pediatric Use [PDF]

open access: yesJournal of Pharmacy and Bioallied Sciences
Background: The durability of dental crowns is critical in pediatric dentistry to ensure long-term functionality and esthetics. Stainless steel crowns (SSCs) have been a staple in restorative pediatric dentistry, while zirconia crowns (ZCs) have emerged ...
Umesh C. Chaudhary   +7 more
doaj   +2 more sources

FeOOH Nanosheets Coupled with ZnCdS Nanoparticles for Highly Improved Photocatalytic Degradation of Organic Dyes and Tetracycline in Water [PDF]

open access: yesMolecules
Developing a low-cost and highly efficient semiconductor photocatalyst for the decomposition of organic pollutants and antibiotics is highly desirable. Herein, FeOOH nanosheets were prepared using a liquid-phase stirring technique and combined with ZnCdS
Jingren Yang
doaj   +2 more sources

Development of a high performance ethylene glycol gas sensor using cobalt doped porous ZnFe2O4 nanostructures [PDF]

open access: yesScientific Reports
Porous ZnFe2O4 microspheres consisting of interwoven nanosheets doped with different concentrations of cobalt (ZC) with a diameter of approximately 1.5 μm were synthesized by a simple hydrothermal method.
Abdulrahman Sumayli   +2 more
doaj   +2 more sources

Factors influencing preformed metal crowns and prefabricated zirconia crowns [PDF]

open access: yesBMC Oral Health
Backgound Preformed metal crowns (PMCs) and zirconia crowns (ZCs) are commonly used for the treatment of primary molar caries. However, there have been no reports on factors influencing parental awareness, willingness to use these treatments, and the ...
Shuman Deng   +7 more
doaj   +2 more sources

Performance analysis of ZVS and ZCS boost converters for Solar Photo Voltaic Applications [PDF]

open access: yesE3S Web of Conferences, 2023
This paper describes a useful modulated, asymmetric full-bridge converter for sustainable solar PV applications. The suggested converter achieves zero-voltage switching (ZVS) on the main side’s power switches and reduces circulating current loss by ...
Gireesh Kumar Devineni   +5 more
doaj   +1 more source

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