Results 111 to 120 of about 134,155 (279)

Standards of distorted signal for calibration of total harmonic distortion meters [PDF]

open access: yes1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254), 2002
In this article a survey and evaluation of some progressive approaches to the standards of non-linear distortion is reported. Some types of standards of signals with the known total harmonic distortion used for calibration of distortion measuring instruments are proposed.
openaire   +3 more sources

Rainbow Photonic Crystals: Self‐Assembly of Carbohydrate Bottlebrushes Block Copolymers

open access: yesAdvanced Materials, EarlyView.
Full‐color reflective 1D photonic crystals, capable of a tunable, responsive, and reversible color with high repeatability, are created from the self‐assembly of carbohydrate‐based brush block copolymers (BR01‐04). Abstract Tunable and responsive photonic crystal systems are the subject of great research interest owing to their ability to actively ...
Hong Li   +6 more
wiley   +1 more source

Harmonics Minimization of Symmetric Five-Level Inverter Using Improved LSF Modulation Scheme

open access: yesIEEE Access
The use of multilevel inverters has gained popularity due to their ability to generate high-quality output voltage with reduced harmonic distortion.
Md. Tariqul Islam   +7 more
doaj   +1 more source

From Fiber Architecture to Functional Attachment: A Clinically Relevant, Mechanically Tunable Cardiac Patch

open access: yesAdvanced Materials, EarlyView.
A personalizable platform featuring a multi‐zonal cardiac patch design at clinical scale enables precise customization of fiber architecture at micro‐ and macroscale via melt electrowriting. Distinct scaffold zones support cell alignment with mechanical force transfer and epicardial attachment.
Johannes Braig   +31 more
wiley   +1 more source

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

Assessment of non-sinusoidal reactive power of shunt capacitors in the presence of distorted substation voltage in radial distribution systems

open access: yesAin Shams Engineering Journal, 2018
In this paper, an analytical assessment of non-sinusoidal reactive power of shunt capacitors in the presence of substation voltage harmonics in radial distribution systems has been attempted.
Narinder Kumar, Ashwani Kumar
doaj   +1 more source

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi   +12 more
wiley   +1 more source

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