A5035406973- Gamma-ray bursts and supernovae
- Luminescence Properties of Advanced Materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Astrophysical Phenomena and Observations
- Advanced Condensed Matter Physics
- Electronic and Structural Properties of Oxides
- Advanced X-ray Imaging Techniques
- Aluminum Alloys Composites Properties
- Additive Manufacturing Materials and Processes
- High-pressure geophysics and materials
- High Entropy Alloys Studies
- Glass properties and applications
- Radiation Detection and Scintillator Technologies
- Astro and Planetary Science
- X-ray Spectroscopy and Fluorescence Analysis
- Electron and X-Ray Spectroscopy Techniques
- Microstructure and mechanical properties
- Magnetic and transport properties of perovskites and related materials
- Crystal Structures and Properties
- Aluminum Alloy Microstructure Properties
- Metallic Glasses and Amorphous Alloys
- Astrophysics and Cosmic Phenomena
- Supercapacitor Materials and Fabrication
- Pulsars and Gravitational Waves Research
Ningxia University
2024-2025
Chinese Academy of Sciences
2015-2024
Dalian Minzu University
2023-2024
University of Chinese Academy of Sciences
2018-2024
Institute of High Energy Physics
2014-2024
Minzu University of China
2024
Beihang University
2023
Donghua University
2022-2023
University of Science and Technology of China
2023
Southwest Minzu University
2023
We present a systematic temporal and spectral study of all Swift-X-ray Telescope observations gamma-ray burst (GRB) afterglows discovered between 2005 January 2007 December. After constructing fitting light curves spectra to power-law models, we classify the components each afterglow in terms canonical X-ray test them against closure relations forward shock models for variety parameter combinations. The are used identify potential jet breaks with characteristics including uniform model...
The Fermi Gamma-ray Space Telescope observed the bright and long GRB090902B, lying at a redshift of z = 1.822. Together Large Area (LAT) Burst Monitor (GBM) cover spectral range from 8 keV to >300 GeV. Here we show that prompt burst spectrum is consistent with emission jet photosphere combined nonthermal described by single power law photon index −1.9. gives rise strong quasi-blackbody which somewhat broader than Planck function has characteristic temperature ∼290 keV. We model photospheric...
We present a detailed analysis of Swift multi-wavelength observations GRB 070110 and its remarkable afterglow. The early X-ray light curve, interpreted as the tail prompt emission, displays spectral evolution already seen in other gamma-ray bursts. optical afterglow shows shallow decay up to ~2 d after burst, which is not consistent with standard models. most intriguing feature very steep flux at ~20 ks ending an apparent plateau. abrupt drop curve rules out external shock origin plateau...
We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations GROND, which led to discovery its optical/NIR afterglow recognition high-z nature via a spectral break between i' z' bands. Spectroscopy obtained at ESO-VLT revealed continuum extending down λ = 9400 Å, zero flux for 7500 Å<λ < we interpret as onset Gunn–Peterson trough z 6.695± 0.025 (95.5% confidence level), making 080913 highest-redshift gamma-ray burst (GRB) date, more distant...
Series of NaLa(PO3)4:Tb3+/Eu3+ phosphors were prepared by a high-temperature solid-state reaction technique. Structure refinements performed based on powder X-ray diffraction (XRD) data. VUV–UV–vis photoluminescence (PL), fluorescence decays, time-resolved emission spectra (TRES), and low-voltage cathodoluminescence (CL) utilized to investigate the luminescence energy transfer processes. Under VUV–UV light electron beam excitation, NaLa(PO3)4:Tb3+ NaLa(PO3)4:Eu3+ exhibit characteristic...
Inorganic perovskite quantum dots CsPbX
Understanding the dynamic process of epitaxial microstructure forming in laser additive manufacturing is very important for achieving products with a single crystalline texture. Here, we perform situ, real-time synchrotron Laue diffraction experiments to capture microstructural evolution nickel-based single-crystal superalloys during rapid remelting process. In situ radiation characterises crystal rotation behaviour and stray grain formation With complementary thermomechanical coupled finite...
Fast relaxation, a locally dynamic activation, universally occurs in metallic glasses below room temperature. Despite much attention, its structural origin has barely been solved and remains mysterious. In this work, the mechanical relaxations of typical Zr-based glass with different states are systematically studied from 135 to 748 K. We find that single-peak (${\ensuremath{\beta}}^{\ensuremath{'}}$) fast relaxation annealed splits into two distinct peaks (\ensuremath{\gamma}...
Luminescence and electronic properties of Ba<sub>2</sub>MgSi<sub>2</sub>O<sub>7</sub>:Eu<sup>2+</sup>were investigated under optical low-voltage cathode ray excitations by hybrid DFT calculations.
This work highlights the studies on Ce<sup>3+</sup>/Pr<sup>3+</sup> f–d transitions and energy transfer dynamics in LiCaBO<sub>3</sub>.
Supercapacitors are attracting huge research interest because they expected to achieve battery-level energy density, and have a longer calendar life shorter charging time. However, due the out shell materials without contact extra freeway for charge transports, still limited contribution high capacitance array structure at rates. Here, CO/[email protected] NBs were designed synthesized on Cu foam substrates with CuO as cores or Ni–CoMoO4·0.75H2O nanobelt by an easily synthetic method. will...