Articles with "hfo" as a keyword



Scalp HFO rates are higher for larger lesions

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Published in 2022 at "Epilepsia Open"

DOI: 10.1002/epi4.12596

Abstract: High‐frequency oscillations (HFO) in scalp EEG are a new and promising noninvasive epilepsy biomarker, providing added prognostic value, particularly in pediatric lesional epilepsy. However, it is unclear if lesion characteristics, such as lesion volume, depth,… read more here.

Keywords: scalp hfo; hfo; hfo rates; scalp eeg ... See more keywords

Evaluation on Excess Entropy Scaling Method Predicting Thermal Transport Properties of Liquid HFC/HFO Refrigerants

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Published in 2020 at "Journal of Thermal Science"

DOI: 10.1007/s11630-020-1383-2

Abstract: The application of the excess entropy scaling (EES) method to predict the viscosity, thermal conductivity and thermal diffusivity of HFC/HFO refrigerants is evaluated in this paper. The universal coefficients of the EES model were firstly… read more here.

Keywords: hfo; excess entropy; hfc hfo; hfo refrigerants ... See more keywords

Improved light emission from n-ZnO/p-Si heterojunction with HfO2 as an electron blocking layer

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Published in 2017 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2016.12.033

Abstract: Abstract Light-emitting diodes (LEDs) based on ZnO were fabricated on a p -Si substrate by using a pulsed laser deposition system. Significant electroluminescence (EL) improvement was demonstrated with the insertion of an HfO 2 electron… read more here.

Keywords: hfo; electron blocking; layer; zno ... See more keywords

Two-Step Synthesis of 2-Trifluoromethylated and 2-Difluoromethylated Benzoheteroles Starting from HFO-1224yd(Z) and HFO-1233yd(Z).

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c03930

Abstract: An efficient two-step method for synthesizing 2-(trifluoromethyl)- and 2-(difluoromethyl)benzoheteroles bearing various substituents was developed. Commercially available HFO-1224yd(Z) or HFO-1233yd(Z) underwent the Suzuki-Miyaura coupling with arylboronic acids (acid esters) bearing a nucleophilic moiety at the ortho… read more here.

Keywords: two step; trifluoromethylated difluoromethylated; 1224yd hfo; hfo ... See more keywords
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Enhanced Removal of Heavy Metals from Water by Hydrous Ferric Oxide-Modified Biochar

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Published in 2020 at "ACS Omega"

DOI: 10.1021/acsomega.0c03893

Abstract: Biochar has become an attractive adsorbent for heavy metal removal, but its application potential is very limited because of the relatively low adsorption capacity and poor selectivity. In the present study, we decorated the biochar… read more here.

Keywords: hfo; biochar; ferric oxide; hydrous ferric ... See more keywords

A fast parameter estimation method for high-frequency oscillation based on empirical wavelet transform and moving least square

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-024-84272-9

Abstract: In renewable power systems, the interaction between generators, power electronic devices, and the grid has led to frequent high-frequency oscillation (HFO) events. These events can result in significant generation losses and pose serious threats to… read more here.

Keywords: method; oscillation; parameter estimation; hfo ... See more keywords

Enhanced Oxidation of Reactive Black 5 Using a Ferrous Oxidation–Based Treatment Process in the Presence of Hydrous Ferric Oxide

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Published in 2017 at "Journal of Hazardous, Toxic, and Radioactive Waste"

DOI: 10.1061/(asce)hz.2153-5515.0000347

Abstract: AbstractThe major limitations of the Fenton process are the working pH range (2–5) and the high cost of H2O2. These limitations were unraveled using the Fe2+-air oxidation process, in which ferrous ions were used with… read more here.

Keywords: hfo; oxidation; fe2 air; process ... See more keywords

Time-dependence of asphaltene dispersion by marine cylinder lubricants (MCL) surfactants

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Published in 2020 at "Journal of Dispersion Science and Technology"

DOI: 10.1080/01932691.2020.1814320

Abstract: Abstract Marine lubricants’ ability of dispersing Heavy Fuel Oil (HFO) can be quantitatively observed and evaluated with an efficient and economic method: heating capillary video microscopy. Effects on HFO dispersion included those of surfactants’ type,… read more here.

Keywords: marine; hfo; chain length; dispersion ... See more keywords

Ultra-thin gate insulator of atomic-layer-deposited AlO x and HfO x for amorphous InGaZnO thin-film transistors

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Published in 2023 at "Nanotechnology"

DOI: 10.1088/1361-6528/acc742

Abstract: To strengthen the downscaling potential of top-gate amorphous oxide semiconductor (AOS) thin-film transistors (TFTs), the ultra-thin gate insulator (GI) was comparatively implemented using the atomic-layer-deposited (ALD) AlO x and HfO x . Both kinds of… read more here.

Keywords: hfo; alo hfo; ultra thin; gate ... See more keywords

Automatic detection of high-frequency-oscillations and their sub-groups co-occurring with interictal-epileptic-spikes.

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Published in 2019 at "Journal of neural engineering"

DOI: 10.1088/1741-2552/ab4560

Abstract: OBJECTIVE High-Frequency-Oscillations (HFO) and Interictal-Epileptic-Spikes (IES) are spatial biomarkers of the epileptogenic-zone. Those HFO spatially and temporally co-occurring with IES (IES-HFO) are potentially superior biomarkers, their use is however challenged by the difficulty in detecting… read more here.

Keywords: hfo; frequency oscillations; high frequency; value ... See more keywords

Partial Discharge Characterization of HFO(E) Gas Using Ultra-High Frequency (UHF) Antenna for Medium Voltage Switchgear Application

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Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2024.3411059

Abstract: The most frequent and dangerous hazard to the electrical insulation of high voltage (HV) and high field (HF) equipment is partial discharges (PD). The development of PD activity is both a cause and an indicator… read more here.

Keywords: partial discharge; voltage; gas; hfo ... See more keywords