Results 71 to 80 of about 109,088 (302)

Harmonic reduction in a boost-star three-phase single switch power factor correction circuit operating in discontinuous conduction mode [PDF]

open access: yes, 2003
A harmonic injection technique, which reduces the kine frequency harmonics of the single switch three-phase boost rectifier, is implemented. In this method, a periodic voltage is injected in the control circuit to vary the duty cycle of the rectifier ...
Athab, Hussain Sabri   +3 more
core   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 more
wiley   +1 more source

A novel hybrid PWM algorithm having superior harmonic performance

open access: yesIngeniería e Investigación, 2009
This paper presents a novel hybrid modulation algorithm which improves the harmonic performance of eight of the most common pulse width modulation (PWM) algorithms for voltage source inverters (VSI) in the electric drive field. From harmonic a-nalysis of
Diana Jimena López Mesa   +4 more
doaj  

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang   +17 more
wiley   +1 more source

Dynamic force spectroscopyLooking at the total harmonic distortion

open access: yes, 2005
5 pages, 3 figures First International Meeting on Applied Physics (aphys2003), 2003, Badajoz ...
openaire   +3 more sources

Impact of Short Circuit Ratio on Harmonic Distortion in Offshore Wind Farm Integration

open access: yesEnergies
Offshore wind energy is rapidly expanding as a critical resource for global carbon neutrality, with 10.8 GW of new capacity added in 2023, raising the worldwide total to 75.2 GW.
Kiryeon Lee   +4 more
doaj   +1 more source

A three-phase current source inverter with third harmonic injection for grid-connected renewable power sources [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla"
A novel three-phase voltage-synchronized current source (VSCS) converter with third harmonic injection is proposed in this paper. Compared with the conventional vector current control (VCC), phaselocked loop (PLL) is completely removed in this method ...
Ninković Predrag   +2 more
doaj   +1 more source

Future work on harmonics : some expert opinions part I : wind and solar power [PDF]

open access: yes, 2014
A workshop on power system harmonics was organized in Stockholm in January 2014. On the agenda was among others a discussion on what are the main issues on harmonics at the moment and in the near future.
Amaris, Hortensia   +9 more
core   +1 more source

Respiratory Organ‐on‐a‐Chip for Disease Modeling: From Architecture to Functional Integration

open access: yesAdvanced Healthcare Materials, EarlyView.
Respiratory organ‐on‐a‐chip (ROC) models capture key mechanical and cellular cues of the human respiratory system, enabling quantitative dissection of disease mechanisms. This review links ROC architectures to disease modeling, functional integration, and commercialization, and proposes a decision framework that aligns model complexity with mechanistic
Jinzhuo Hu   +4 more
wiley   +1 more source

Harmonic correction in power supplies feeding non-linear loads [PDF]

open access: yes, 2014
This paper focuses on the design of an electronic circuit which can be used in conjunction with the power supplies used at the input of non-linear loads (computers, TV sets, etc.) in order to filter out the input current harmonics in such loads.
Darwish, M, Dimitriadis, P
core   +1 more source

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