Results 61 to 70 of about 7,499 (272)

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Selección de los parámetros técnicos de los compensadores escalonados de potencia reactiva a nivel global; Selection of the technical parameters for the staggered compensators of reactive power at global level

open access: yesRevista Científica de Ingeniería Energética, 2011
En los sistemas eléctricos industriales es muy frecuente la existencia de cargas variables. La compensacióndel factor de potencia en la mayoría de estos casos, se realiza por medio de dispositivos compensadoresestáticos que ...
Davel Borges Vasconcellos   +1 more
doaj  

Virtual Laboratory for Power Electronic Based Reactive Power Compensators

open access: yesTehnicki vjesnik - Technical Gazette, 2018
The practical application is important in engineering education. However, in some cases, such as fund deficiency, practical applications may not be possible. In addition, this case restricts closely to pursue the novel technologies. Depending on developments in power electronics and microprocessor fields, use of Flexible Alternating Current ...
Coteli, Resul, Gokcan, Ali Osman
openaire   +5 more sources

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou   +8 more
wiley   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

Modelación de los efectos de la compensación de potencia reactiva en sistemas de suministro eléctrico Modelation of effects on reactive power compensation in secondary power systems

open access: yesIngeniare: Revista Chilena de Ingeniería, 2012
Se presentan los inconvenientes de la potencia reactiva y a partir de allí se realiza la modelación matemática de los efectos económicos de ésta, aplicable a sistemas de suministro eléctrico.
Davel Borges Vasconcellos   +2 more
doaj  

Reactive power compensator in transient modes

open access: yesBulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, 2018
Compensation of reactive power is one of the ways of increasing the electrical grid efficiency, theoretical foundations of which were developed at the beginning of the last century. The development of effective control algorithms for reactive power compensation continues today.
Verbytskyi, Ievgen   +3 more
openaire   +3 more sources

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

open access: yesAdvanced Functional Materials, EarlyView.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song   +13 more
wiley   +1 more source

Research on control strategy for Three-Phase PWM Voltage Source Rectifier [PDF]

open access: yes, 2014
Author name used in this publication: K. W. E.
Che, Y, Cheng, KWE, Wang, Y
core  

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