A5000115319- Stellar, planetary, and galactic studies
- Fish Ecology and Management Studies
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Galaxies: Formation, Evolution, Phenomena
- Gamma-ray bursts and supernovae
- Astro and Planetary Science
- Conducting polymers and applications
- Wastewater Treatment and Reuse
- Food Supply Chain Traceability
- Essential Oils and Antimicrobial Activity
- Transition Metal Oxide Nanomaterials
- Food Waste Reduction and Sustainability
- Astronomical Observations and Instrumentation
- Fish biology, ecology, and behavior
- Freshwater macroinvertebrate diversity and ecology
- Radioactive contamination and transfer
- Radioactive element chemistry and processing
- Hydrology and Watershed Management Studies
- Nuclear Physics and Applications
- Fish Biology and Ecology Studies
- Constructed Wetlands for Wastewater Treatment
- Blood donation and transfusion practices
- Effects and risks of endocrine disrupting chemicals
- Maritime Transport Emissions and Efficiency
China Institute of Water Resources and Hydropower Research
2021-2025
Peking University
2001-2024
Yunnan University
2017-2024
Chongqing Public Health Medical Center
2024
Chongqing Medical University
2024
Zhejiang University
2023
Chongqing Jiaotong University
2023
University of Maryland, College Park
2022
China University of Mining and Technology
2021
Nanjing University
2018-2019
The rotation curve (RC) of the Milky Way out to ∼100 kpc has been constructed using ∼16 000 primary red clump giants (PRCGs) in outer disc selected from LAMOST Spectroscopic Survey Galactic Anti-centre (LSS-GAC) and Sloan Digital Sky (SDSS)-III/APOGEE survey, combined with ∼5700 halo K (HKGs) SDSS/SEGUE survey. To derive RC, PRCG sample warm population HKG stellar are, respectively, analysed a kinematical model allowing for asymmetric drift corrections re-analysed spherical Jeans equation...
Accurate determination of stellar atmospheric parameters and elemental abundances is crucial for Galactic archeology via large-scale spectroscopic surveys. In this paper, we estimate -- effective temperature T_{\rm eff}, surface gravity log g metallicity [Fe/H], absolute magnitudes M_V M_{Ks}, {\alpha}-element to metal (and iron) abundance ratio [{\alpha}/M] [{\alpha}/Fe]), as well carbon nitrogen [C/H] [N/H] from the LAMOST spectra with amultivariate regressionmethod based on kernel-based...
The urine bioassay method for transuranium nuclides (237Np, 239,240,241Pu, 241Am, and 244Cm) is needed to quickly assess the potential internal contamination in emergency situations. However, case that analysis of multiple radionuclides required same sample, time-consuming/tedious sequential analytical procedures using chromatographic separation resins would have be employed every single radionuclide. In this work, a rapid simultaneous determination was developed by triple quadrupole...
We present deep, high-resolution optical spectra of two Galactic bulge planetary nebulae (PN), M 1-42 and 2-36. The show very prominent rich recombination lines (ORLs) from C, N, O Ne ions. Infrared were also obtained using the Short Long Wavelength Spectrometer (SWS LWS) on board ISO. infrared spectra, together with archival IUE are used to study their density thermal characteristics determine elemental abundances. UV extinction curve towards these PN observed H i He ii line fluxes radio...
We present the second release of value-added catalogues LAMOST Spectroscopic Survey Galactic Anticentre (LSS-GAC DR2). The values radial velocity $V_{\rm r}$, atmospheric parameters --- effective temperature $T_{\rm eff}$, surface gravity log$g$, metallicity [Fe/H], $\alpha$-element to iron (metal) abundance ratio [$\alpha$/Fe] ([$\alpha$/M]), elemental abundances [C/H] and [N/H], absolute magnitudes ${\rm M}_V$ M}_{K_{\rm s}}$ deduced from 1.8 million spectra 1.4 unique stars targeted by...
We present empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs luminosity classes IV and V giants II III, based on a collection from the literature about two hundred nearby stars with direct measurements better than 2.5 per cent. The are valid an range 3100–10 000 K spectral types M5 to A0 3100–5700 K5 G5. A total 21 18 bands four photometric systems, i.e. Johnson (UBVRJIJJHK), Cousins (RCIC), Sloan Digital Sky Survey (gr) Two Micron All (JHKs),...
We re-estimate the peculiar velocity of Sun with respect to local standard rest using a sample stars within 600 pc Sun, selected from LAMOST Spectroscopic Survey Galactic Anti-centre (LSS-GAC). The consists 94332 FGK main-sequence well-determined radial velocities and atmospheric parameters. To derive LSR, two independent analyses are applied data. Firstly, we determine solar motion by comparing observed distribution that generated analytic formulism Schonrich & Binney has been...
Deep long-slit optical spectrophotometric observations are presented for 25 Galactic bulge planetary nebulae (GBPNe) and six disc (GDPNe). The spectra, combined with archival ultraviolet (UV) spectra obtained the International Ultraviolet Explorer infrared Infrared Space Observatory, have been used to carry out a detailed plasma diagnostic element abundance analysis utilizing both collisional excited lines (CELs) recombination (ORLs).
We present a new catalogue of 18 080 radial velocity standard stars selected from the APOGEE data. These RV are observed at least three times and have median stability ($3\sigma_{\rm RV}$) around 240 m s$^{-1}$ over time baseline longer than 200 days. They largely distributed in northern sky could be extended to southern by future APOGEE-2 survey. Most red giants ($J - K_{\rm s} \ge 0.5$) owing target selection criteria. Only about ten per cent them main-sequence stars. The $H$ band...
Abstract The Schizothoracinae fish are a natural group of cyprinids widely distributed in rivers and lakes the Qinghai-Tibetan Plateau (QTP) adjacent regions. These parallelly evolved with QTP uplift thus important for uncovering geological history, paleoclimatic environment, mechanisms functional adaptation to environmental change. However, dataset including species occurrences traits, which essential resolving above issues guiding relevant conservation, remains unavailable. To fill this...
China has come up with ecological civilization as one of major goals to improve its sustainability during development in future. Under this broad framework, social, economic and natural ecosystems are expected develop harmony. However, there is lack evaluation mechanism for newly proposed strategy. Therefore, article, ecosystem services, Ecological Footprint gross domestic product per capita were selected order reflect the resource endowment, human occupation on capital, growth. Thus, an...
We present a three-dimensional (3D) extinction analysis in the region towards supernova remnant (SNR) S147 (G180.0–1.7) using multiband photometric data from Xuyi Schmidt Telescope Photometric Survey of Galactic Anticentre (XSTPS-GAC), 2MASS and WISE. isolate previously unrecognized dust structure likely to be associated with SNR S147. The structure, which we term as 'S147 cloud', is estimated have distance d = 1.22 ± 0.21 kpc, consistent conjecture that pulsar PSR J0538 + 2817. cloud...
Abstract Close white dwarf binaries consisting of a and an A-, F-, G-, or K-type main-sequence star, henceforth close WD+AFGK binaries, are ideal systems to understand the nature type Ia supernovae progenitors test binary evolution models. In this work we identify 775 candidates from TGAS (The Tycho-Gaia Astrometric Solution) Gaia Data Release 2 (DR2), well-defined sample stars with available parallaxes, measure radial velocities (RVs) for 275 them aim identifying binaries. The RVs have been...
The electrical properties of conductive polymer composites are critical in applications, and the conductivity regulation through micro/nanofiller orientation is attracting broad attention. For short carbon fiber (SCF) (SCFCPCs), SCF network topology SCFCPCs with different orientations analyzed a numerical model. results demonstrate that an increase degree from 0 (SCFs perpendicular to direction) 1 parallel first leads corresponding then decrease SCFCPCs. highest achieved while increased...
As a major component of the LAMOST Galactic surveys, Spectroscopic Survey Anti-center (LSS-GAC) will survey significant volume thin/thick disks and halo in contiguous sky area ~ 3,400sq.deg., centered on anti-center (|b| <= 30{\deg}, 150 l 210{\deg}), obtain \lambda\lambda 3800--9000 low resolution (R 1,800) spectra for statistically complete sample >= 3M stars all colors, uniformly randomly selected from (r, g - r) r i) Hess diagrams obtained CCD imaging photometric 5,400sq.deg. with Xuyi...
The reduction in open-channel flow velocity due to China's South-to-North Water Diversion Project (SNP) increases the risk of benthic algal community blooms resulting drinking water safety issues. Consequently, it has attracted attention from all walks life. However, regulatory measures mitigate and main risk-causing factors are unclear. This study simulated river ecosystem SNP channel through diversion. Simulated gradient-increasing affects environmental alterations, can be used explore...
We report the discovery of a kiloparsec-scale dual active galactic nucleus (AGN) in J0038+4128. From Hubble Space Telescope (HST) Wide Field Planetary Camera 2 (WFPC2) images, we find two optical nuclei with projection separation 4.7 kpc (3.44 arcsec). The southern component (J0038+4128S) is spectroscopically observed HST Goddard High Resolution Spectrograph UV range and found to be Seyfert 1 galaxy broad Lyα emission line. northern (J0038+4128N) during Large Sky Area Multi-Object Fibre...
We present spectroscopy of three planetary nebulae (PNe) in the Northern Spur Andromeda Galaxy (M31) obtained with Double Spectrograph on 5.1 m Hale Telescope at Palomar Observatory. The samples are selected from observations Merrett et al. Our purpose is to investigate formation substructures M31 using PNe as a tracer chemical abundances. [O III] 4363 auroral line detected spectra two objects, enabling temperature determinations. Ionic abundances derived observed collisionally excited...