Results 81 to 90 of about 5,405,430 (295)

Comparison of Active Power Filter and Passive Power Filter in Harmonic Mitigation in Power System Network

ELEKTRIKA- Journal of Electrical Engineering
The power quality of an electrical system is greatly impacted by harmonics, which are undesirable voltage and current waveforms that distort the sinusoidal waveform of the fundamental frequency. Harmonics, if not filtered, can damage electrical equipment, raise electric bills, and impair product quality and productivity.
MUHAMMAD ZAKARIA ROZMAN, RASYIDAH BINTI IDRIS   +1 more
openaire   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Using special APF to improve harmonic rate of MRT power system

Journal of Low Frequency Noise, Vibration and Active Control
Most APFs use improved designs of active power filters of half-bridge and full-bridge circuits, their advantages and disadvantages are compared. International journals often use this filter circuit for small circuit boards.
Chien-Hsu Chen, Li-Wei Ko
doaj   +1 more source

Hybrid Power Filter Based on a Six-Switch Two-Leg Inverter

Eletrônica de Potência, 2014
Hybrid power filters (HPFs) are considered an attractive solution to overcome the problem of current harmonics generated by nonlinear loads. They mix low power rating active filters with passive filters, but many of these HPF topologies have a great ...
Leonardo R. Limongi, Luiz G. B. Genú, Luís R. Silva Filho, Fabrício Bradaschia, Gustavo M. S. Azevedo   +4 more
doaj   +1 more source

Dual-band WLAN Antenna Array with Integrated Bandpass Filters for Harmonic Suppression [PDF]

, 2015
This paper presents the design and results of a dual-band antenna array integrated with bandpass filters. The array has a 1×2 configuration. The two bands of the array correspond to the two WLAN bands of 2.4 GHz and 5.8 GHz. Other than the two main bands,
Budimir, D., Djuradj Budimir, Waqas Ahmad, Ahmad, W.   +3 more
core   +1 more source

Descriptors to Dynamics: A Materials and Device Perspective on in‐Materio Physical Reservoir Computing for Neuromorphic Edge Intelligence

Advanced Materials, EarlyView.
Intrinsic material dynamics are harnessed as computational resources for neuromorphic in‐materio physical reservoir computing. Defects, ionic motion, interfaces, percolation, geometry, and biasing shape transient states that provide fading memory, nonlinearity, and high‐dimensional projection for simple readout. A descriptor‐to‐dynamics framework links
Kshitij RB Singh, Alif Syafiq Kamarol Zaman, Muzhen Xu, Yuki Usami, Saptarshi Das, Hirofumi Tanaka   +5 more
wiley   +1 more source

Elasticity‐Driven Periodic Polarization Patterns in a Chiral Ferroelectric Nematic Fluid

Advanced Materials, EarlyView.
Chiral polar ferroelectric nematic fluids exhibit spontaneous formation of stripe, square, and hexagonal polarization textures under confinement. Controlled by thickness and anchoring, these patterns produce spatially modulated nonlinear optical responses.
Anej Sterle, Peter Medle Rupnik, Luka Cmok, Aitor Erkoreka, Marta Lavrič, Natan Osterman, Calum J. Gibb, Jordan Hobbs, Josu Martinez‐Perdiguero, Richard J. Mandle, Alenka Mertelj, Nerea Sebastián   +11 more
wiley   +1 more source

Quality Parameters of Electricity Supplied to Electric Railways

Communications, 2001
The paper analyses the most relevant unfavourable impact of AC electric traction on the quality parameters of supplied electric energy. These are: power factor of fundamental harmonic and power factor, voltage a current harmonic components, unbalance and
Juraj Altus, Milan Novak, Alena Otcenasova, Michal Pokorny, Adam Szelag   +4 more
doaj   +1 more source

Single‐Particle FRET Probes Heterogeneity in the Ligand Shell of Colloidal Perovskite Quantum Dots

Advanced Materials, EarlyView.
Single‐particle, single‐molecule Förster resonance energy transfer turns dye‐tagged ligands into nanorulers for the otherwise elusive organic shell of CsPbBr3 quantum dots. Distance variations within individual particles reveal pronounced local heterogeneity, while changes in the surrounding ligand chemistry shift the average dye–surface separation ...
Leon G. Feld, Oleksandr Kolomiiets, Noah A. Shahin, Sebastian Sabisch, Amrutha Rajan, Gabriele Rainò, Maksym V. Kovalenko   +6 more
wiley   +1 more source

Filtration of Harmonic Components and Correction Power Factor in Nonlinear Loads

Gazi Üniversitesi Fen Bilimleri Dergisi, 2019
Total harmonic distortion has become an important subject in power quality, especially after use of power electronic equipment and non-linear loads.
Süleyman ADAK, Hasan Cangi, Ahmet Serdar YILMAZ   +2 more
doaj   +1 more source