A5059957296- Gamma-ray bursts and supernovae
- Pulsars and Gravitational Waves Research
- Cosmology and Gravitation Theories
- Geophysics and Gravity Measurements
- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- SAS software applications and methods
- GaN-based semiconductor devices and materials
- Radio Astronomy Observations and Technology
- Nanowire Synthesis and Applications
- Polymer crystallization and properties
- Robotics and Sensor-Based Localization
- Advanced Image and Video Retrieval Techniques
- Semiconductor Quantum Structures and Devices
- Polymer Nanocomposites and Properties
- Astrophysics and Cosmic Phenomena
- CCD and CMOS Imaging Sensors
- biodegradable polymer synthesis and properties
Beijing Normal University
2022-2024
University of Hong Kong
2023
Peng Cheng Laboratory
2023
National Tsing Hua University
2008-2020
ABSTRACT The Dark Energy Spectroscopic Instrument (DESI) collaboration recently released its first year of data (DR1) on baryon acoustic oscillations (BAO) in galaxy, quasar, and Lyman-$\alpha$ forest tracers. When combined with cosmic microwave background (CMB) Type Ia supernovae (SNIa) data, DESI BAO results suggest potential thawing behaviour dark energy. Cosmological analyses utilize comoving distances along ($D_\mathrm{ H}$) perpendicular to M}$) the line sight. Notably, there are...
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 Millilensing of gamma-ray bursts (GRBs) is expected to manifest as multiple emission episodes in a single triggered GRB with similar light-curve patterns and spectrum properties. Identifying such lensed GRBs could help improve constraints on the abundance compact dark matter. Here we present systemic search for millilensing among 3000 observed by Fermi GBM up 2021 April. Eventually find four interesting candidates performing an autocorrelation test, hardness time-integrated/resolved...
Unidirectional single crystalline InN nanoemitters were fabricated on the silicon (111) substrate via ion etching. These showed excellent field emission properties with threshold as low 0.9V∕μm based criterion of 1μA∕cm2 current density. This superior property is ascribed to double enhancement (1) geometrical factor nanostructures and (2) inherently high carrier concentration degenerate semiconductor surface electron accumulation layer induced downward band bending effect that significantly...
Motion deblurring is a critical ill-posed problem that important in many vision-based robotics applications. The recently proposed event-based double integral (EDI) provides theoretical framework for solving the prob-lem with event camera and generating clear images at high frame-rate. However, original EDI mainly designed offline computation does not support real-time requirement In this paper, we propose fast EDI, an efficient implementation of can achieve online on single-core CPU...
Gravitational lensing effect is one of most significant observational probes to investigate compact dark matter/objects over a wide mass range. In this work, we first propose derive the population information and abundance supermassive matter in range $\ensuremath{\sim}{10}^{5}--{10}^{7}{M}_{\ensuremath{\bigodot}}$ from six millilensed $\ensuremath{\gamma}$-ray burst (GRB) candidates 3000 Fermi GRB events using hierarchical Bayesian inference method. We obtain that, for...
After randomly incorporating 2–21 mol % of 3-methylstyrene (3MS) or 4-methylstyrene (4MS) into the syndiotactic polystyrene (sPS) backbone, effects comonomer units on equilibrium melting temperature (Tm°) depression were examined within Sanchez–Eby theoretical framework. In situ small-/wide-angle X-ray scattering (SAXS/WAXS) was used to investigate morphological evolution upon heating. The WAXS profiles showed that α- β-dominated crystals in poly(styrene-stat-3-methylstyrene) (sPS-3MS) and...
For the stochastic gravitational wave backgrounds (SGWBs) search centred at milli-Hz band, galactic foreground produced by white dwarf binaries (WDBs) within Milky Way contaminates extra-galactic signal severely. Because of anisotropic distribution pattern WDBs and motion spaceborne interferometer constellation, time-domain data stream will show an annual modulation. This property is fundamentally different from those SGWBs. In this Letter, we propose a new filtering method for vector based...
The gamma-ray burst GRB 221009A, known as the ``brightest-of-all-time" (BOAT), is closest energetic detected so far, with an energy of $E_{γ,\rm iso} \sim 10^{55}$ ergs. 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...