Results 121 to 130 of about 31,344 (251)

Synchronous reference frame fundamental method in shunt active power filter for mitigation of current harmonics [PDF]

open access: yes, 2017
This research presents compensation of current harmonic disturbance in power system network using shunt active power filter. In this paper, harmonic extraction using Synchronous Reference Frame Fundamental technique (SRFF) was investigated for three ...
Mohd Radzi, Mohd Amran, Musa, Suleiman
core  

In Vivo Imaging With a Low‐Cost MRI Scanner and Cloud Data Processing in Low‐Resource Settings

open access: yesNMR in Biomedicine, Volume 39, Issue 6, June 2026.
This study presented the system evolution at MUST: (a) Scanner after the initial assembly in 2023. (b) First reconstructed image (bell pepper). Front (c), rear (d), and global (e) views of the MUST scanner in the 2025 configuration, highlighting the improved electronics setup, RF coils, and mechanical integration.
Teresa Guallart‐Naval   +18 more
wiley   +1 more source

Operational Trans-Resistance Amplifier Based Tunable Wave Active Filter [PDF]

open access: yes, 2013
In this paper, Operational Trans-Resistance Amplifier (OTRA) based wave active filter structures are presented. They are flexible and modular, making them suitable to implement higher order filters.
Bothra, M.   +3 more
core   +1 more source

Printed Bypass Diodes: Unlocking Reliable Next‐Generation Printed Photovoltaic Modules

open access: yesSolar RRL, Volume 10, Issue 9, 13 May 2026.
Shading challenges photovoltaics, especially in printed/flexible devices where traditional bypass diodes can not integrate. We demonstrate a fully printed bypass diodes using water‐soluble SnO2 colloidal ink, formulated with polyvinyl alcohol for reliability.
Ayoub El Masry   +4 more
wiley   +1 more source

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

open access: yesAdvanced Functional Materials, Volume 36, Issue 37, 7 May 2026.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang   +15 more
wiley   +1 more source

Control Scheme Influence on the Performance of Shunt Active Power Filter based on Five-level NPC Inverter in Steady and Transient Conditions

open access: yesAlgerian Journal of Signals and Systems
This paper presents an investigation on the performance of shunt active power filter (Shunt APF) systems based on five-level neural point clamped (NPC) inverter in steady and transient conditions adopting a fuzzy control scheme.
Salim CHENNAI
doaj   +1 more source

Computational Modeling Meets 3D Bioprinting: Emerging Synergies in Cardiovascular Disease Modeling

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 17, 8 May 2026.
Emerging advances in three‐dimensional bioprinting and computational modeling are reshaping cardiovascular (CV) research by enabling more realistic, patient‐specific tissue platforms. This review surveys cutting‐edge approaches that merge biomimetic CV constructs with computational simulations to overcome the limitations of traditional models, improve ...
Tanmay Mukherjee   +7 more
wiley   +1 more source

Compensation of active filter using p-q theory in photovoltaic systems

open access: yesMemories - Materials, Devices, Circuits and Systems
This work proposes an active shunt filter design for grid-connected solar systems, utilizing the p-q instantaneous power theory technique to minimize grid harmonics and reduce reactive power. As a result, the total harmonic distortion (THD) is decreased,
Farzane Soleimani Rudi   +1 more
doaj   +1 more source

Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 17, 8 May 2026.
Conductive polymer coatings are widely explored to improve the quality of signals recorded with chronically implanted neural electrodes, offering enhanced biocompatibility along with reduced electrode impedance. Combining computational modelling and data from PEDOT:PTS coated and PtIr electrodes in rats, we show that improvements in signal quality with
Karthik Sridhar   +4 more
wiley   +1 more source

A Hybrid Active Filter Using the Backstepping Controller for Harmonic Current Compensation [PDF]

open access: yes, 2019
This document presents a new hybrid combination of filters using passive and active elements because of the generalization in the use of non-linear loads that generate harmonics directly affecting the symmetry of energy transmission systems that ...
Ababssi, Najib   +3 more
core   +1 more source

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