Results 71 to 80 of about 2,638 (193)
International Endodontic Journal, Volume 59, Issue 8, Page 1557-1585, August 2026.ABSTRACT Background Pulse oximetry is an accurate diagnostic method for assessing the condition of the dental pulp; however, the normal oxygen saturation levels for each tooth type are yet to be clearly defined. Objectives This systematic review and meta‐analysis aims to answer the question: What are the reference values for pulse oximetry testing in ...
Lilian Tietz +3 more
wiley +1 more source
The Advanced Technologies of Three-phase Three-level PWM Rectifier
Kongzhi Yu Xinxi Jishu, 2011 For the advantages of constant DC output voltage, lower power devices voltage stress, better AC sinusoidal current waveform and per unit power factor, three-phase three-level PWM rectifier has been widely used in many fields, such as medium-high AC motor
伍文俊, 钟彦儒
doaj
IEEE AccessA novel center-tapped rectifier with current-balancing and voltage-clamped (CBVC) capability for the LLC resonant converter is proposed. A secondary capacitor is inserted between the contact points of the rectifier diode and the secondary winding of the ...
Keon-Woo Kim +2 more
doaj +1 more source
An Novel Thin Layer SOI Carrier-Stored Trench LIGBT With Enhanced Emitter Injection
IEEE Journal of the Electron Devices Society, 2019 An novel thin layer SOI carrier-stored (CS) trench lateral insulated gate bipolar transistor (TLIGBT) with diode-clamped P-shield layer is proposed. The potential of the P-shield layer is clamped by two series-connected diodes.
Bo Yi +4 more
doaj +1 more source
Embedding Fiber Segment Interferometry for Localization of Defects in Composite Structures
Polymer Composites, Volume 47, Issue 14, Page 12874-12886, 20 July 2026.Graphical representation of composite structures with embedded fiber optic sensors for structural health monitoring, enabling strain measurement and damage localization under mechanical loading. ABSTRACT In the area of structural health monitoring (SHM), embedding strain sensors into smart composites is a key strategy for detecting failures arising ...
Shiva Mohammadkarimi +3 more
wiley +1 more source
Journal of Engineering, 2018 The applications of Multilevel Converter (MLC) are increased because of the huge demand for clean power; especially these types of converters are compatible with the renewable energy sources. In addition, these new types of converters have the capability
Omar Talal Mahmood Altaee +1 more
doaj +1 more source
Supply System for Three-Level Inverters Using Multi-Pulse Rectifiers with Coupled Reactors
Energies, 2019 The paper presents a proposal of the multi-pulse AC/DC converter for providing supply for multilevel inverters and considerably reducing the line current distortion factor.
Jan Iwaszkiewicz, Piotr Mysiak
doaj +1 more source
Analysis of Multicarrier PWM techniques for Photovoltaic fed Cascaded H-Bridge Multilevel Inverter [PDF]
Journal of Electrical and Electronics Engineering, 2017 Recently multilevel inverter technology emerging as an important alternative in the field of high power, medium voltage energy control. The various topologies for multilevel inverters such as diode-clamped, flying capacitor and cascaded H-bridge have ...
VENKATRAMAN Thiyagarajan +1 more
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Minimization of Switching Losses for Diode Clamped Multilevel Inverter
International Journal of Computer Applications, 2012 Multilevel inverters are emerging as a most promising alternative for reducing the harmonics and to achieve highvoltage, high-power capability but switching losses are increased because of increased device count. Many modulation techniques like soft switching techniques, space vector-based PWM techniques or sinusoidal PWM-based techniques were employed
Sarat Kumar Sahoo +2 more
openaire +1 more source
Self‐Powered Clamp‐On Pyroelectric Tactile Sensor for Intelligent Recognition of Film Materials
SusMatTactile sensors are a potential solution for material identification. However, current potential tactile sensors for material identification are pressed, expensive, and applications‐confined. Here we report a clamped‐on pyroelectric tactile sensor on the
Shengjie Yin +5 more
doaj +1 more source