Yan-Qiu Zhang
A5100659652- Gamma-ray bursts and supernovae
- Pulsars and Gravitational Waves Research
- Astrophysics and Cosmic Phenomena
- Astro and Planetary Science
- Nuclear Physics and Applications
- Astronomy and Astrophysical Research
- Particle Detector Development and Performance
- High-pressure geophysics and materials
- Radiation Detection and Scintillator Technologies
- Astrophysical Phenomena and Observations
- Neuroinflammation and Neurodegeneration Mechanisms
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Geophysics and Gravity Measurements
- Solar and Space Plasma Dynamics
- Stellar, planetary, and galactic studies
- Advanced Radiotherapy Techniques
- Astronomical Observations and Instrumentation
- Neutrophil, Myeloperoxidase and Oxidative Mechanisms
- Statistical and numerical algorithms
- Lung Cancer Diagnosis and Treatment
- MicroRNA in disease regulation
- Advanced X-ray and CT Imaging
- Catalytic C–H Functionalization Methods
- Antioxidants, Aging, Portulaca oleracea
Chinese Academy of Sciences
2022-2024
Institute of High Energy Physics
2022-2024
East China University of Science and Technology
2023-2024
University of Chinese Academy of Sciences
2022-2024
Xiangtan University
2022
Sichuan University
2022
Hebei Normal University
2021
First Hospital of Qinhuangdao
2014-2021
China University of Mining and Technology
2008-2018
University of South China
2012
The brightest Gamma-ray burst, GRB 221009A, has spurred numerous theoretical investigations, with particular attention paid to the origins of ultra-high energy TeV photons during prompt phase. However, analyzing mechanism radiation in $\sim$MeV range been difficult because high flux causes pile-up and saturation effects most detectors. In this letter, we present systematic modeling time-resolved spectra using unsaturated data obtained from Fermi/GBM (precursor) SATech-01/GECAM-C (main...
Abstract The milestone discovery of GW170817-GRB 170817A-AT 2017gfo has shown that gravitational waves (GWs) could be produced during the merger a neutron star–neutron star/black hole and in electromagnetic (EM) waves, gamma-ray burst (GRB) kilonova (KN) are generated sequence after merger. Observationally, however, EM properties before phase still unclear. Here we report peculiar precursor KN-associated long-duration GRB 211211A, providing evidence This lasts ∼0.2 s, waiting time between...
Abstract As one of the most frequently diagnosed cancers, esophageal squamous cell carcinoma ( ESCC ) remains leading cause malignancy‐related death worldwide. Many studies have focused on potential role cancer cells in educating B during progression. Here, we aim to explore circulating exosomes from generation two main regulatory (Breg) subsets, including interleukin‐10 + Bregs (B10) and programmed PD )‐1 high Bregs. Firstly, observed an elevated percentage B10 peripheral blood patients...
Abstract The minimum variation timescale (MVT) of soft gamma-ray repeaters can be an important probe to estimate the emission region in pulsar-like models, as well Lorentz factor and radius possible relativistic jet burst (GRB)–like thus revealing their progenitors physical mechanisms. In this work, we systematically study MVTs hundreds X-ray bursts (XRBs) from SGR J1935+2154 observed by Insight-HXMT, GECAM, Fermi/Gamma-ray Burst Monitor 2014 July 2022 January through Bayesian block...
As the brightest gamma-ray burst ever observed, GRB 221009A provided a precious opportunity to explore spectral line features. In this paper, we performed comprehensive spectroscopy analysis of jointly with GECAM-C and Fermi/GBM data search for emission absorption lines. For first time investigated feature throughout including most bright part where many instruments suffered problems, identified prominent lines in multiple intervals. The central energy Gaussian evolves from about 37 MeV 6...
2,2 ′ ,4,4 ‐Tetrabromodiphenyl ether (BDE‐47) induces oxidative stress in kidney cells, but the underlying mechanism remains poorly understood. Troxerutin, a natural flavonoid, has potential antioxidant and anti‐inflammatory efficacy. In this study, we assessed effect of troxerutin on damage caused by BDE‐47 investigated mechanism. The results showed reduced reactive oxygen species (ROS) level urine albumin‐to‐creatinine ratio (ACR), decreased activities inflammatory factors including...
2,2,4,4‐Tetrabromodiphenyl ether (BDE‐47), one of the persistent organic pollutants, seriously influences quality life; however, its pathological mechanism remains unclear. Troxerutin is a flavonoid with pharmacological activity antioxidation and anti‐inflammation. In present study, we investigated troxerutin against BDE‐47‐induced kidney cell apoptosis explored underlying mechanism. The results show that reduced renal urinary protein secretion in BDE‐47‐treated mice. Western blot analysis...
ABSTRACT Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a dedicated mission, launched in December 2020, for gamma-ray transients, including bursts (GRBs) and soft gamma repeater (SGR) the multimessenger multiwavelength astronomy era. Since GECAM consists of two independent spacecrafts (or say instruments), framework data analysis multiple distinctive from that only one spacecraft, which case most GRB missions, we developed pipeline called Energetic...
Abstract The gamma-ray burst GRB 221009A, known as the “brightest of all time,” is closest energetic detected so far, with an energy E γ ,iso ∼ 10 55 erg. This study aims to assess its compatibility and luminosity distributions. Our analysis indicates that energy/luminosity function GRBs consistent across various redshift intervals, inclusion 221009A does not significantly impact at low redshifts. Additionally, our evaluation best-fitting result entire sample suggests expected number greater...
ABSTRACT Spectral lag of the low-energy photons with respect to high-energy ones is a common astrophysical phenomenon (such as gamma-ray bursts and Crab Pulsar) may serve key probe underlying radiation mechanism. However, spectral in keV range magnetar has not been systematically studied yet. In this work, we perform detailed analysis Li et al.’s Cross-Correlation Function (Li-CCF) method for SGR J1935+2154 observed by Insight-Hard X-ray Modulation Telescope (HXMT), Gravitational Wave...
Abstract Magnetars are neutron stars with ultrahigh magnetic fields (~10 14 –10 15 G). The magnetar SGR J1935+2154 is not only one of the most active magnetars detected so far, but also unique confirmed source fast radio bursts. Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) dedicated to monitor gamma-ray transients all over sky, including short Here we report GECAM observations burst activity from 2021 January 2022 December, which results in a and...
Abstract The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a dedicated mission consisting of multiple instruments on different spacecraft to monitor gamma-ray transients. To meet the requirement GECAM, we developed Energetic Transients Joint Analysis System for Multi-INstrument (ETJASMIN) pipeline, which has been extended incorporate other (such as Fermi-GBM, SVOM/GRM). In this work, introduce ETJASMIN pipeline with focus search, verification, and...
The milestone of GW 170817-GRB 170817A-AT 2017gfo has shown that gravitational wave (GW) is produced during the merger neutron star-neutron star/black hole and in electromagnetic (EM) a gamma-ray burst (GRB) kilonovae (KN) are generated sequence after merger. Observationally, however, EM property still unclear. Here we report peculiar precursor KN-associated long GRB 211211A. duration $\sim$ 0.2 s, waiting time between main emission (ME) 1 which about same as interval 170817 170817A....
Abstract The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of microsatellites (i.e., GECAM-A and GECAM-B) dedicated to monitoring gamma-ray transients including the high-energy electromagnetic counterparts gravitational waves, such as bursts, soft repeaters, solar flares, terrestrial flashes. Since launch in 2020 December, GECAM-B has detected hundreds astronomical events. For these localization key for burst identification classification well...
Abstract Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM), consisting of two micro-satellites, is designed to detect gamma-ray bursts associated with gravitational-wave events. Here, we introduce the real-time burst alert system GECAM, adoption BeiDou-3 short message communication service. We present post-trigger operations, detailed ground-based analysis, and performance system. In first year in-flight operation, GECAM was triggered by 42 bursts. The has...
The Hard X-ray Modulation Telescope (Insight-HXMT), is China's first astronomy satellite launched on June 15, 2017. anti-coincidence CsI detectors of the High Energy telescope (HE) onboard Insight-HXMT could serve as an all-sky gamma-ray monitor in about 0.2-3 MeV. In its four years operation, has detected 322 Gamma-Ray Bursts (GRBs) by offline search pipeline including blind and targeted search. For GOLDEN sample GRBs, joint analyses were performed with other GRB missions, Fermi Gamma-ray...
The present study was performed to investigate the effects of chronic administration nonylphenol (NP) on expression inflammation-related genes in brains mice. NP given orally by gavages at 0, 50, 100, and 200 mg/kg/d. inflammatory enzymes, inducible nitric oxide synthase (iNOS) cyclooxygenase-2 (COX-2), evaluated immunohistochemistry immunoblotting assays. (NO) level (NOS) activity were also measured biochemical analyses. results showed that a high dose (200 mg/kg/d) significantly increased...
Abstract Esophageal cancer ranks the eighth most common and sixth cause of death worldwide. MicroRNAs (miRNAs) are small noncoding RNAs that regulate a wide variety cancer‐related cellular processes. In current study, series previously published gene expression microarray data from Gene Expression Ominus The Cancer Genome Atlas were downloaded further divided into training, internal, external validation sets. Least absolute shrinkage selectionator operator Cox regression model along with...