Factors influencing preformed metal crowns and prefabricated zirconia crowns [PDF]
BMC Oral HealthBackgound 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
A Reduced Complexity Acoustic-Based 3D DoA Estimation with Zero Cyclic Sum [PDF]
SensorsAccurate direction of arrival (DoA) estimation is paramount in various fields, from surveillance and security to spatial audio processing. This work introduces an innovative approach that refines the DoA estimation process and demonstrates its ...
Rigel Procópio Fernandes +2 more
doaj +2 more sources
Performance analysis of ZVS and ZCS boost converters for Solar Photo Voltaic Applications [PDF]
E3S 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
An AC-DC Interleaved ZCS-PWM Boost Converter With Reduced Auxiliary Switch RMS Current Stress
IEEE 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.
Ramtin Rasoulinezhad +3 more
doaj +1 more source
Temporal Stability of the Zulliger Test in Brazilian Adults [PDF]
Paidéia (Ribeirão Preto), 2023 The reliability of a test obtained over time is an indispensable measure to ensure the use of the instrument. This study aims to explore the temporal stability of the Zulliger test in Brazilian adults.
Jucelaine Bier Di Domenico Grazziotin +2 more
doaj +1 more source
Design and Implementation of an Auto-Oriented Bidirectional ZCS Hybrid Circuit Breaker
IEEE Access, 2021 To protect power systems from severe short circuit faults, the zero-current switching (ZCS) technique is widely accepted due to its fast interruption speed.
Zhuangxian Jiang +5 more
doaj +1 more source
Novel Soft-Switching Integrated Boost DC-DC Converter for PV Power System
Energies, 2020 This paper presents a novel soft-switching boost DC-DC converter, which uses an edge-resonant switch capacitor based on the pulse width modulation PWM technique.
Khairy Sayed +2 more
doaj +1 more source
Bridging Green Chemistry and Circular Economy: A Pathway to Sustainable Polyester Plastics Through Feedstock, Synthesis, and Waste Upcycling. [PDF]
Adv 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
Digital simulation of FM-ZCS-quasi resonant converter fed DD servo drive using Matlab Simulink [PDF]
Serbian Journal of Electrical Engineering, 2009 This paper deals with digital simulation of FM-ZCS-quasi resonant converter fed DC servo drive using Matlab Simulink. Quasi Resonant Converter (QRC) is fast replacing conventional PWM converters in high frequency operation.
Kattamuri Narasimha Rao +1 more
doaj +1 more source
The health system accountability impact of prison health committees in Zambia
International Journal for Equity in Health, 2018 Background From 2013, the Zambian Corrections Service (ZCS) worked with partners to strengthen prison health systems and services. One component of that work led to the establishment of facility-based Prison Health Committees (PrHCs) comprising of both ...
Stephanie M. Topp +5 more
doaj +1 more source