Results 81 to 90 of about 12,422,847 (291)

Suppression of Supply Current Harmonics of 18-Pulse Diode Rectifier by Series Active Power Filter with LC Coupling

open access: yesEnergies, 2020
The reported research aims at improving the quality of three-phase rectifier supply currents. An effective method consists of adding properly formed booster voltages to the fundamental supply voltages using a series active filter.
Wojciech Sleszynski   +2 more
doaj   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese   +8 more
wiley   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

An Active Damping Control Strategy for LCL Grid-Connected Inverter Based on Virtual Resistor

open access: yesKongzhi Yu Xinxi Jishu, 2018
For the resonance of LCL grid-connected inverter, traditional solutions are damping as filter capacitor and resistance in series , filter capacitor current feedback, filter capacitor voltage feedback and so on, but these approaches lead to increased ...
WANG Jingbo   +3 more
doaj  

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

open access: yesAdvanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash   +6 more
wiley   +1 more source

КОМПЕНСАТОР РЕАКТИВНОЇ ПОТУЖНОСТІ З ПЛАВНИМ РЕГУЛЮВАННЯМ

open access: yesElektrotehnìka ta Elektroenergetika, 2014
Розглянуто широко використовувані пристрої компенсації реактивної потужності (ПКРМ) – батареї конденсаторів (БК) з тиристорним перемиканням, проведено аналіз їх недоліків: вплив вищих гармонік при несинусоїдальній напрузі мережі, неможливість забезпечити
V. V. Burlaka   +3 more
doaj   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

open access: yesAdvanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek   +12 more
wiley   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

open access: yesAdvanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski   +3 more
wiley   +1 more source

Mitigation of Power Quality Problems with Series Active Filter [PDF]

open access: yes, 2011
: Power quality is becoming an increasingly important topic in the performance of many industrial applications. There are numerous types of power quality issues and power problems such as voltage sags, voltage swells, interruptions, phase shifts ...
M Davoodi   +4 more
core  

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