Results 81 to 90 of about 231,367 (247)
Using self-driven AC-DC synchronous rectifier as a direct replacement for traditional power diode rectifier [PDF]
, 2012 Synchronous rectification has previously been adopted in switched-mode circuits for reducing the conduction losses particularly in high-frequency, low-voltage, and high-current applications. This paper presents a generalized self-driven ac-dc synchronous
Liu, X, Hui, SY, Ho, WC, Zhong, WX
core +1 more source
Advanced Science, EarlyView.Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park +5 more
wiley +1 more source
Advanced Science, EarlyView.An intelligent engineered probiotic platform is developed for the precision management of inflammatory bowel disease. By integrating surface‐displayed adhesins with an inflammation‐responsive CAT‐SOD‐GPx tripartite fusion system and mucosal repair factors, this programmable system achieves prolonged intestinal retention and multi‐pronged therapy.
Yuxi Wang +9 more
wiley +1 more source
Use of Discharge Resistor to Improve Transient De-Excitation in Brushless Synchronous Machines
Energies, 2019 The discharge resistor is only used in case of electrical trip to reduce the field current as fast as possible and to minimize the damages produced by the short-circuit current supplied by the synchronous machine. The connection of the discharge resistor
Emilio Rebollo +3 more
doaj +1 more source
Advanced Science, EarlyView.A hierarchical CM/LDH nanoplatform integrates ROS‐scavenging Ce‐MOF nanozymes with acid‐neutralizing CaAl‐LDH and is delivered within GelMA hydrogel to diabetic bone defects. By remodeling the oxidative‐acidic microenvironment, preserving mitochondrial homeostasis, and suppressing mtDNA–cGAS–STING inflammatory signaling, CM/LDH reduces proinflammatory ...
Xu Chen +10 more
wiley +1 more source
Advanced Science, EarlyView.Lateral flow assays are evolving into interdisciplinary, system‐level sensing platforms. Recent innovations are deconstructed through coupled phases of mass transfer, reaction, and signal transduction, revealing interdependence across porous materials, interfacial chemistry, nanolabels, readout devices, and data‐enabled analysis.
Yan Pan +6 more
wiley +1 more source
IEEE AccessThis paper proposes a novel cascade voltage-control method for DC variable-speed synchronous generators with a diode rectifier. In order to emphasize the necessity of the proposed method, the light-load voltage fluctuation problem that affects the ...
Sung-Soo Min, Kyoung-Min Choo
doaj +1 more source
Novel Optical Functionalities in Memristors
Advanced Electronic Materials, EarlyView.We present a tunnel junction memristor with expanded optical functionalities enabled by the integration of an ultra‐thin CdS barrier and a top ITO electrode. UV illumination triggers a photovoltaic response that can sense the memristor state. At very low temperatures, the UV light generates a high injection of photocarriers and produces a volatile ...
Isabel Tenreiro +6 more
wiley +1 more source
Advanced Energy Materials, EarlyView.An alcohol‐adduct‐mediated strategy is employed to stabilize tin isopropoxide for the formation of a homogeneous double electron transport layer (ETL) incorporating SnO2 nanoparticles (NPs). This double‐ETL exhibits improved optical and charge‐transport properties due to reduced defect density and better energy level alignment, resulting in high ...
You‐Hyun Seo +10 more
wiley +1 more source
, 2015 International audienceThis paper deals with the increase of the efficiency of a DC/AC/DC converter used for coupling of a PEMFCto an electrical vehicle DC bus. The power converter is based on a high frequency Mosfet inverter stage, ahigh frequency Planar
Depernet, Daniel +2 more
core +1 more source