Results 61 to 70 of about 109,088 (302)

Simulation of a single-phase active power filter based ANN controller [PDF]

open access: yes, 2013
This project presents the employment of a single-phase active power filter (APF) to compensate harmonics generated by battery charger. The presence of the harmonics leads to various problems and poor power quality.
Mahadan, Mohd Ezwan
core  

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai   +6 more
wiley   +1 more source

Research of Harmonic Elimination and Reactive Power Compensation of Mine Electricity Grid and Its Application

open access: yesGong-kuang zidonghua, 2012
For problems of voltage and current distortion and capacity waste of grid caused by harmonic pollution, power quality testing and analysis were given, and a scheme of using SVG for harmonic elimination and reactive power compensation were proposed ...
GUO Jin-long, LV Jing-jiang, WANG Yi-lei
doaj  

Nanodiamond Quantum Sensors for Probing Free Radical Biology

open access: yesAdvanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Passive Filter Design for Improving Quality of Solar Power

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2018
With the progress of industry, power electronic equipment is widely used in power system, it has produced serious harmonic distortion. It goes without saying that harmonic analysis is a very important subject in power system.
Nurhalim Dani Ali   +4 more
doaj   +1 more source

Kompensasi Daya Reaktif pada Alat Las Listrik [PDF]

open access: yes, 2003
The operation of electric arc-furnace by applying 3 or I phase electric network main power supply can be done through the process of stepping down by voltage transformer rectified by diode circuits.
Nisworo, S. (Sapto)
core  

Regionally Localized Electrolyte Engineering via UV Crosslinking for Stable Ether–Carbonate Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a regionally localized electrolyte (RLE) that spatially separates ether‐ and carbonate‐based functions to stabilize both Li metal and high‐voltage cathodes. An immobilized ether‐rich layer directs Li+ transport, activates LiNO3 locally, and forms a uniform LiF‐rich SEI, enabling lower overpotential, uniform deposition, and long ...
Eunbin Lim   +4 more
wiley   +1 more source

Total Harmonic Distortion of Dodecagonal Space Vectoe Modulation

open access: yesInternational Journal of Power Electronics and Drive Systems (IJPEDS), 2014
Space vector modulation technique is one of the best PWM technique which has been implemented to the Multilevel inverter circuit to get the purely sinusoidal cuurent .This is a important algorithm which is implemented in open wind induction motor.This type of I.M has great impact on Electric Drive system.
openaire   +1 more source

Low order harmonic cancellation in a grid connected multiple inverter system via current control parameter randomization [PDF]

open access: yes, 2005
In grid connected multiple inverter systems, it is normal to synchronize the output current of each inverter to the common network voltage. Any current controller deficiencies, which result in low order harmonics, are also synchronized to the common ...
Abeyasekera, T.D.   +3 more
core   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy