Results 1 to 10 of about 293,049 (150)

Motion Artifacts Removal from Measured Arterial Pulse Signals at Rest: A Generalized SDOF-Model-Based Time–Frequency Method [PDF]

open access: yesSensors
Motion artifacts (MA) are a key factor affecting the accuracy of a measured arterial pulse signal at rest. This paper presents a generalized time–frequency method for MA removal that is built upon a single-degree-of-freedom (SDOF) model of MA, where MA ...
Zhili Hao
doaj   +2 more sources

Added value of patient-reported outcome measures (PROMs) after an acute stroke and early predictors of 90 days PROMs

open access: yesJournal of Patient-Reported Outcomes, 2022
Introduction Value-based health care represents a patient-centered approach by valuing Patient-Reported Outcome Measures (PROMs). Our aim was to describe the additional value of PROMs after an acute stroke over conventional outcome measures and to ...
Ester Sanchez-Gavilan   +10 more
doaj   +1 more source

An Improved Dingo Optimization Algorithm Applied to SHE-PWM Modulation Strategy

open access: yesApplied Sciences, 2022
This paper presents a modification to the dingo optimization algorithm (mDOA) to solve the non-linear set of equations of the selective harmonic elimination (SHE) control technique widely applied in multilevel inverters. In addition, said modification is
Juan H. Almazán-Covarrubias   +3 more
doaj   +1 more source

Generalized Ellipsoidal and Sphero-Conal Harmonics [PDF]

open access: yes, 2006
Classical ellipsoidal and sphero-conal harmonics are polynomial solutions of the Laplace equation that can be expressed in terms of Lame polynomials. Generalized ellipsoidal and sphero-conal harmonics are polynomial solutions of the more general Dunkl ...
Volkmer, Hans
core   +3 more sources

A Comprehensive Review of Maritime Microgrids: System Architectures, Energy Efficiency, Power Quality, and Regulations

open access: yesIEEE Access, 2019
The recent trends to design more efficient and versatile maritime (both marine and offshore) vessels have attracted significant attention toward high penetration of power electronics systems in electric ship systems, which trigged a variety of power ...
Dinesh Kumar, Firuz Zare
doaj   +1 more source

Plasma-Induced Frequency Chirp of Intense Femtosecond Lasers and Its Role in Shaping High-Order Harmonic Spectral Lines [PDF]

open access: yes, 2001
We investigate the self-phase modulation of intense femtosecond laser pulses propagating in an ionizing gas and its effects on collective properties of high-order harmonics generated in the medium.
A. L’Huillier   +28 more
core   +2 more sources

DC Microgrid Technology: System Architectures, AC Grid Interfaces, Grounding Schemes, Power Quality, Communication Networks, Applications, and Standardizations Aspects

open access: yesIEEE Access, 2017
To meet the fast-growing energy demand and, at the same time, tackle environmental concerns resulting from conventional energy sources, renewable energy sources are getting integrated in power networks to ensure reliable and affordable energy for the ...
Dinesh Kumar, Firuz Zare, Arindam Ghosh
doaj   +1 more source

Numerical generation of hyperspherical harmonics for tetra-atomic systems [PDF]

open access: yes, 2006
A numerical generation method of hyperspherical harmonics for tetra-atomic systems, in terms of row-orthonormal hyperspherical coordinates—a hyper-radius and eight angles—is presented.
Kuppermann, Aron   +2 more
core   +1 more source

ARTIFICIAL INTELLIGENT SYSTEM FOR MEASUREMENT OF HARMONIC POWERS

open access: yesASEAN Journal on Science and Technology for Development, 2017
The importance of the electric power quality (PQ) demands new methodologies and measurement tools in the power industry for the analysis and measurement of the basic electric magnitudes necessary.
Jovitha Jerome, P. Vinoth
doaj   +1 more source

A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition

open access: yesIET Electric Power Applications, 2022
This article presents a novel asymmetric spoke‐type rotor structure. It is used to reduce rotor magnetic flux leakage, torque ripple and no‐load back‐EMF distortion rate while increasing the motor output torque.
Zeyu Liu   +4 more
doaj   +1 more source

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