Articles with "ion cyclotron" as a keyword



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Observations of multiharmonic ion cyclotron waves due to inverse ion cyclotron damping in the northern magnetospheric cusp

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Published in 2017 at "Geophysical Research Letters"

DOI: 10.1002/2016gl071680

Abstract: We present a case study of inverse ion cyclotron damping taking place in the northern terrestrial magnetospheric cusp, exciting waves at the ion cyclotron frequency and its harmonics. The ion cyclo ... read more here.

Keywords: cyclotron damping; ion cyclotron; inverse ion; ion ... See more keywords

An inductively coupled plasma study and an ion cyclotron resonance matrix‐assisted laser/desorption study at high mass resolution of two ancient Maya greenstone artifacts from Pacbitun, Belize, and two decorative jade specimens

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Published in 2020 at "Rapid Communications in Mass Spectrometry"

DOI: 10.1002/rcm.8629

Abstract: RATIONALE Two Early Classic period (ca 250-600 CE) Maya carved, greenstone jade pendants, Specimens A and B, were recovered from the Pacbitun site in Belize in 1987. Mass scans of resolution ~600,000 were obtained for… read more here.

Keywords: jade; study; mass; ion cyclotron ... See more keywords

Efficacy of pulsed electromagnetic fields and electromagnetic fields tuned to the ion cyclotron resonance frequency of Ca2+ on chondrogenic differentiation

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Published in 2019 at "Journal of Tissue Engineering and Regenerative Medicine"

DOI: 10.1002/term.2829

Abstract: Previous studies provide strong evidence for the therapeutic effect of electromagnetic fields (EMFs) on different tissues including cartilage. Diverse exposure parameters applied in scientific reports and the unknown interacting mechanism of EMF with biological systems… read more here.

Keywords: fields tuned; cyclotron resonance; electromagnetic fields; ion cyclotron ... See more keywords
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Challenges and opportunities for on-line monitoring of chlorine-produced oxidants in seawater using portable membrane-introduction Fourier transform-ion cyclotron resonance mass spectrometry

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Published in 2020 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-020-03043-3

Abstract: The present study reports the first evaluation of a MIMS device equipped with a high-resolution Fourier transform-ion cyclotron resonance mass spectrometer (FT-ICR MS) for comprehensive speciation of chlorine-produced oxidants (CPO) in seawater. A total of… read more here.

Keywords: transform ion; ion cyclotron; chlorine produced; resonance mass ... See more keywords

Application of Fourier transform ion cyclotron resonance mass spectrometry to characterize natural organic matter.

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Published in 2020 at "Chemosphere"

DOI: 10.1016/j.chemosphere.2020.127458

Abstract: Advances in the ultra-high-resolution mass spectroscopy lead to a deep insight into the molecular characterization of natural organic matter (NOM). Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) has been used as one of the… read more here.

Keywords: transform ion; ion cyclotron; mass; natural organic ... See more keywords

Molecular characteristics of the oxidation products of a lignite based on the big data obtained from Fourier transform ion cyclotron resonance mass spectrometry

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Published in 2021 at "Fuel"

DOI: 10.1016/j.fuel.2021.120644

Abstract: Abstract Shengli lignite, a low-rank coal, was pretreated and oxidized with aqueous H2O2 and NaClO, respectively, to obtain an oxidation product. Both pretreated and un-pretreated oxidation products were sequentially extracted with diethyl ether and ethyl… read more here.

Keywords: oxidation; transform ion; ion; ion cyclotron ... See more keywords
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Preliminary RF characterization of DEMO in-port ion cyclotron heating system for toroidal and poloidal geometry variations

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Published in 2021 at "Fusion Engineering and Design"

DOI: 10.1016/j.fusengdes.2021.112508

Abstract: Abstract Ion cyclotron Resonance Heating (ICRH) is one of the auxiliary heating schemes considered for the future DEMOnstration Power Plant (DEMO). The ICRH system in DEMO should couple 50 MW using three equatorial ports. Compared… read more here.

Keywords: demo port; system; port; geometry ... See more keywords

High-frequency B-dot probes used to detect characteristics of ion cyclotron range of frequency waves in EAST

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Published in 2019 at "Journal of Plasma Physics"

DOI: 10.1017/s0022377819000291

Abstract: The plasma in the scrape-off layer (SOL) has an important effect on the coupling of the waves in the ion cyclotron range of frequencies (ICRF). The high-frequency B-dot (HFB) probes have been installed to investigate… read more here.

Keywords: high frequency; cyclotron range; frequency; waves east ... See more keywords

Low-Level Fusion of Fourier Transform Ion Cyclotron Resonance Mass Spectrometry Data Sets for the Characterization of Nitrogen and Sulfur Compounds in Vacuum Gas Oils

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Published in 2020 at "Analytical Chemistry"

DOI: 10.1021/acs.analchem.9b05263

Abstract: A total of 18 vacuum gas oils have been analyzed by Fourier transform ion cyclotron resonance mass spectrometry considering six replicates in three different ionization modes (electrospray ionizati... read more here.

Keywords: gas oils; transform ion; ion cyclotron; fourier transform ... See more keywords

Evaluation of Particle Scattering by Oxygen Ion Cyclotron Harmonic Waves in the Inner Magnetosphere

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Published in 2024 at "Geophysical Research Letters"

DOI: 10.1029/2024gl108261

Abstract: The scattering of charged particles by oxygen ion cyclotron harmonic (OCH) waves in the inner magnetosphere is investigated by evaluating the relevant quasi‐linear diffusion coefficients. Recent studies demonstrated that OCH waves are oxygen ion Bernstein… read more here.

Keywords: och waves; cyclotron harmonic; ion cyclotron; oxygen ion ... See more keywords

Spatial Distribution of Ion Cyclotron Waves at Io

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Published in 2025 at "Geophysical Research Letters"

DOI: 10.1029/2025gl115547

Abstract: Ion cyclotron waves at Io are important for understanding the complex interactions between Io and Jupiter's magnetosphere. In this study, we analyze the spatial distributions of ion cyclotron waves at Io using data from seven… read more here.

Keywords: spatial distribution; cyclotron waves; ion cyclotron;