Search Results - "Wu, Qingwen"
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Determination of quality markers for quality control of Zanthoxylum nitidum using ultra-performance liquid chromatography coupled with near infrared spectroscopy
Published in PloS one (24-06-2022)“…With the increasing demand for quality control in the traditional Chinese medicine industry, there is a need for the development of quality markers and a…”
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In Situ Star Formation in Accretion Disks and Explanation of Correlation between the Black Hole Mass and Metallicity in Active Galactic Nuclei
Published in The Astrophysical journal (01-02-2023)“…Abstract Recent observations show that the metallicity Z BLR of the broad-line region (BLR) in active galactic nuclei (AGNs) is solar to supersolar, which is…”
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Constraint on the black hole spin of M87 from the accretion-jet model
Published in Monthly notices of the Royal Astronomical Society (01-09-2017)“…Abstract The millimetre bump, as found in high-resolution multiwaveband observations of M87 by Prieto et al., most possibly comes from the synchrotron emission…”
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An Explanation for the Overrepresentation of Tidal Disruption Events in Post-starburst Galaxies
Published in The Astrophysical journal (01-01-2024)“…Abstract Tidal disruption events (TDEs) provide a valuable probe for studying the dynamics of stars in the nuclear environments of galaxies. Recent…”
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Machine Learning–based Search of High-redshift Quasars
Published in The Astrophysical journal. Supplement series (01-11-2024)“…Abstract We present a machine learning search for high-redshift (5.0 < z < 6.5) quasars using the combined photometric data from the Dark Energy Spectroscopic…”
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Biologically Inspired Complete Coverage Path Planning Algorithm Based on Q-Learning
Published in Sensors (Basel, Switzerland) (11-05-2023)“…Complete coverage path planning requires that the mobile robot traverse all reachable positions in the environmental map. Aiming at the problems of local…”
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Adaptive Fuzzy Integral Sliding Mode Cooperative Control Based on Time-Delay Estimation for Free-Floating Close-Chain Manipulators
Published in Sensors (Basel, Switzerland) (07-06-2024)“…Space manipulators are expected to perform more challenging missions in on-orbit service (OOS) systems, but there are some unique characteristics that are not…”
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Steep Balmer Decrement in Weak AGNs May Not Be Caused by Dust Extinction: Clues from Low-luminosity AGNs and Changing-look AGNs
Published in The Astrophysical journal (01-06-2023)“…Abstract The hydrogen Balmer decrement (e.g., H α /H β ) is widely adopted as an indicator of the internal reddening of active galactic nuclei (AGNs). This is…”
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The black hole mass, Eddington ratio and MBH–σ[O iii] relation in young radio galaxies
Published in Monthly notices of the Royal Astronomical Society (01-10-2009)“…The masses of the central supermassive black holes (BHs) and the Eddington ratios for a sample of 65 young radio galaxies [27 gigahertz-peaked spectrum (GPS)…”
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Exploring the Properties of Photosphere and Emission Lines for Tidal Disruption Events Based on the Global Solution of Slim Disk and Winds
Published in The Astrophysical journal (01-06-2024)“…The theoretical debris supply rate from a tidal disruption of stars can exceed about 100 times of Eddington accretion rate for a 106−7M⊙ supermassive black…”
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The X-Ray Spectral Evolution in X-Ray Binaries and Its Application to Constrain the Black Hole Mass of Ultraluminous X-Ray Sources
Published in The Astrophysical journal (20-07-2008)“…We investigate the relationship between the hard X-ray photon index Gamma and the Eddington ratio [[image] ] in six X-ray binaries (XRBs) with well-…”
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The Interaction between Stars and Past AGN Disk: Possible Explanation for the Kinematic Distributions of S-stars in the Galactic Center
Published in The Astrophysical journal (01-05-2024)“…Abstract The presence of young stars, aged around several million years and situated within the range of ∼0.04–1 pc from our Galactic center raises a question…”
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LORENTZ-FACTOR-ISOTROPIC-LUMINOSITY/ENERGY CORRELATIONS OF GAMMA-RAY BURSTS AND THEIR INTERPRETATION
Published in The Astrophysical journal (20-05-2012)“…The bulk Lorentz factor of the gamma-ray burst (GRB) ejecta ([Gamma] sub(0)) is a key parameter to understanding GRB physics. Liang et al. have discovered a…”
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The Possible Submillimeter Bump and Accretion-jet in the Central Supermassive Black Hole of NGC 4993
Published in The Astrophysical journal (01-03-2018)“…NGC 4993, as a host galaxy of the electromagnetic counterpart of the first gravitational-wave detection of a binary neutron-star merger, was observed by many…”
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Revisit the Fundamental Plane of black hole activity from sub-Eddington to quiescent state
Published in Monthly notices of the Royal Astronomical Society (11-11-2015)“…It is very controversial whether radio–X-ray correlation as defined in low-hard state of X-ray binaries (XRBs) can extend to quiescent state (e.g. X-ray…”
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The Physical Properties of Changing-look Blazars
Published in The Astrophysical journal (01-02-2024)“…Abstract Changing-look active galactic nuclei (AGNs) are a special class of AGNs that change their spectral type from type 1 to type 2 or vice versa. In recent…”
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Interval Type-2 Fuzzy PID Controller Using Disassembled Gradational Optimization
Published in Sensors (Basel, Switzerland) (01-11-2023)“…This paper presents an interval type-2 fuzzy proportional–integral–derivative (IT2F-PID) controller that is designed using a new disassembled gradational…”
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AN ACCRETION-JET MODEL FOR M87: INTERPRETING THE SPECTRAL ENERGY DISTRIBUTION AND FARADAY ROTATION MEASURE
Published in The Astrophysical journal (10-10-2016)“…ABSTRACT M87 is arguably the best supermassive black hole (BH) to explore jet and/or accretion physics, due to its proximity and fruitful high-resolution…”
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On the origin of the soft photons of the high-synchrotron-peaked blazar PKS 1424+240
Published in Monthly notices of the Royal Astronomical Society (11-09-2016)“…PKS 1424+240 is a distant very-high-energy gamma-ray BL Lac object with redshift z = 0.601. It has been found that models utilizing pure synchrotron…”
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The Weakness of Soft X-Ray Intensity: Possible Physical Reason for Weak-line Quasars
Published in The Astrophysical journal (01-04-2024)“…Abstract Weak-line quasars (WLQs) are a notable group of active galactic nuclei (AGNs) that show unusually weak UV lines even though their optical-UV continuum…”
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