Results 121 to 130 of about 1,503,489 (327)

Method for noncontact control of electromagnetic field parameters of 6-10 kV overhead transmission line and harmonic distortion sources based on spectral data analysis

open access: yesИзвестия высших учебных заведений: Проблемы энергетики
RELEVANCE of the study lies in the increasing number of nonlinear loads and power electronic devices in 6-10 kV distribution networks is causing an increase in harmonic and interharmonic distortion.
A. M. Bramm   +3 more
doaj   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald   +7 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

Electrically Tunable Heliconical Smectic Superstructure in Polar Fluids

open access: yesAdvanced Materials, EarlyView.
Strong dipole–dipole interactions give rise to an emergent polar smectic phase with spontaneous chiral symmetry breaking. This resulting polar heliconical smectic superstructure enables novel functionalities in polar fluids, such as color modulation driven by electric field strength and frequency, as well as second‐harmonic generation amplification ...
Hiroya Nishikawa   +5 more
wiley   +1 more source

Buck-boost converter Fed nine level cascaded H-bridge inverter [PDF]

open access: yes
This research investigates on simulation of a traditional cascaded H-bridge (CHB) five-level inverter and proposes a nine-level cascaded H-bridge inverter system. The performance of both five-level and nine-level inverter systems is evaluated by modeling
Babu, R. Samuel Rajesh   +2 more
core   +1 more source

Above Room Temperature Ferroelectricity in Epitaxially Strained KTaO3

open access: yesAdvanced Materials, EarlyView.
Through precise epitaxial engineering, the cubic and paraelectric KTaO3${\rm KTaO}_3$ is transformed into a robust ferroelectric. By leveraging lattice‐mismatched substrates to apply controlled epitaxial strain, a stable ferroelectric ground‐state is achieved with a transition temperature as high as 475 K, establishing KTaO3${\rm KTaO}_3$ as a highly ...
Tobias Schwaigert   +11 more
wiley   +1 more source

The Influence of the Radiation Source Parameters on the Accuracy of Digital Speckle Correlation Method

open access: yesMATEC Web of Conferences, 2016
The article presents the impact of the laser radiation divergence and the wavelength on the harmonic distortion detection, as well as the influence of the distance between the optical circuit elements on the harmonic distortion and the sensitivity of ...
Li Lin, Gubarev Fedor
doaj   +1 more source

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