A5008714698- Astrophysics and Cosmic Phenomena
- Solar and Space Plasma Dynamics
- Calibration and Measurement Techniques
- Gamma-ray bursts and supernovae
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Astrophysical Phenomena and Observations
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Atmospheric Ozone and Climate
- Astronomical Observations and Instrumentation
- Ionosphere and magnetosphere dynamics
- Transgenic Plants and Applications
- Plant tissue culture and regeneration
- Genetically Modified Organisms Research
- Neutrino Physics Research
- Geomagnetism and Paleomagnetism Studies
- Adaptive optics and wavefront sensing
Purple Mountain Observatory
2019-2024
University of Science and Technology of China
2022-2023
Chinese Academy of Sciences
2008-2022
Nanjing University
2021
Institute of Botany
2008
The shortage of strong endosperm-specific expression promoters for driving the recombinant protein genes in cereal endosperm is a major limitation obtaining required level and pattern expression. Six seed storage glutelin (GluA-1, GluA-2, GluA-3, GluB-3, GluB-5, GluC) were isolated from rice (Oryza sativa L.) genomic DNA by PCR. Their spatial temporal patterns potential stable transgenic plants examined with beta-glucuronidase (GUS) used as reporter gene. All showed expected within...
Abstract China’s first solar mission, the Advanced Space-based Solar Observatory (ASO-S), is now changing from Phase B to C. Its main scientific objectives are summarized as ‘1M2B’, namely magnetic field and two types of bursts (solar flares coronal mass ejections). Among three payloads, Hard X-ray Imager (HXI) observes images spectra in flares. In this paper, we briefly report on progresses made by HXI science team (data software team) during design phase (till May 2019). These include...
Abstract The Hard X-ray Imager (HXI) payload, a component of China's Advanced Space-based Solar Observatory (ASO-S) satellite, is designed to observe solar emissions in the 30-200 keV range, with aim investigating non-thermal physical processes during flares. Before launch, Geant4 simulations were employed assess on-orbit background HXI instrument, evaluating its performance and potential achieve scientific objectives. This study addresses issues identified previous conducts further analyses...
Abstract High-cadence, multiwavelength observations have continuously revealed the diversity of tidal disruption events (TDEs), thus greatly advancing our knowledge and understanding TDEs. In this work, we conducted an intensive optical-UV X-ray follow-up campaign TDE AT 2023lli found a remarkable month-long bump in its UV/optical light curve nearly 2 months prior to maximum brightness. The represents longest separation time from main peak among known TDEs date. outburst declines as t −4.10...
Abstract As one of the three payloads Advanced Space-based Solar Observatory (ASO-S), pre-launch characterization HXI includes collimator and spectrometer. This article focuses on HXI's spectrometer, including detection efficiency, energy resolution, to ADC channel (E-C) relationship. The efficiency necessitates a sufficient number calibrated points in observation range, with refined measurement around absorption edge lanthanum bromide crystal, is an X-ray beam. results are consistent...
Quantitative and analytical analysis of modulation process the collimator is a great challenge, also value to design development Fourier transform imaging telescopes. The Hard X-ray Imager (HXI), as one three payloads onboard Advanced Space-based Solar Observatory(ASO-S) mission, adopts modulating Fourier-Transformation technique will be used explore mechanism energy release transmission in solar flare activities. As an important step reconstruct images flares, accurate functions HXI are...
Abstract The space environment background of various particle fluxes the Hard X-ray Imager (HXI), one payloads Advanced Space-based Solar Observatory (ASO-S) spacecraft, is investigated and presented. Different approaches are used to obtain input information on particles (protons, alpha particles, electrons, positrons, neutrons, photons). Some special regions (SAA radiation belt) also taken into account. findings indicate that electrons primary source in belt. Due large flux generated by HXI...