A5101939748- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Particle Accelerators and Free-Electron Lasers
- Stellar, planetary, and galactic studies
- Advanced Sensor and Energy Harvesting Materials
- Magnetic confinement fusion research
- Carbon Nanotubes in Composites
- Conducting polymers and applications
- Acoustic Wave Resonator Technologies
- Spacecraft and Cryogenic Technologies
- Physics of Superconductivity and Magnetism
- Mechanical and Optical Resonators
- Astro and Planetary Science
- Electrochemical sensors and biosensors
- Astrophysics and Star Formation Studies
- Spectroscopy and Chemometric Analyses
- Electrochemical Analysis and Applications
- Analytical Chemistry and Chromatography
- Fuel Cells and Related Materials
- Polymer composites and self-healing
- Quantum Dots Synthesis And Properties
- Astronomy and Astrophysical Research
Institute of Modern Physics
2015-2024
Chinese Academy of Sciences
2008-2024
Ji Hua Laboratory
2022-2024
Jiujiang University
2024
Southwest University of Science and Technology
2023-2024
Minzu University of China
2023
Hefei Institutes of Physical Science
2022
University of Science and Technology of China
2020-2022
Institute of Plasma Physics
2022
Hangzhou Normal University
2019
A single polyaniline nanofiber field effect transistor (FET) gas sensor fabricated by means of electrospinning was investigated to understand its sensing mechanisms and optimize performance. We studied the morphology, characteristics sensitivity conductive nanofibers. The fibers showed Schottky Ohmic contacts based on different electrode materials. Higher applied gate voltage contributes an increase in sensitivity. a 7% reversible resistance change 1 ppm NH3 with 10 V voltage. FET when...
Humidity detection has been widely used in a variety of fields. A humidity sensor with high sensitivity is reported this paper. surface acoustic wave resonator (SAWR) resonance frequency was fabricated as basic sensitive component. Various nanotechnologies were to improve the sensor's performance. multi-walled carbon nanotube/Nafion (MWCNT/Nafion) composite material prepared humidity-sensitive films, deposited on an SAWR by electrospinning method. The electrospun MWCNT/Nafion nanofiber films...
We report the detection of a substellar companion orbiting intermediate-mass giant star 11 Com (G8 III). Precise Doppler measurements from Xinglong Station and Okayama Astrophysical Observatory (OAO) reveal Keplerian velocity variations with an orbital period 326.03 ± 0.32 days, semiamplitude 302.8 2.6 m s−1, eccentricity 0.231 0.005. Adopting stellar mass 2.7 0.3 M☉, minimum is 19.4 1.5 MJ, well above deuterium-burning limit, semimajor axis 1.29 0.05 AU. This first result joint...
Photoplethysmography(PPG) signal can reflect many physiological parameters, such as heart function, blood vessel elasticity, viscosity and so on. It was a novel noninvasive method with the advantage of convenience accuracy. important to find efficient pre-processing feature extraction algorithms deal original PPG signal, which interfered by other factors. Many practical methods including median filtering FIR used. A new algorithm based on wavelet transformation proposed for eliminating...
HIAF (High Intensity heavy ion Accelerator Facility) is the new generation accelerator under construction in China. The HFRS (FRagment Separator of HIAF) a fragment separator and also transfer-line between Booster Ring Spectrometer ring, which has magnetic rigidity up to 25 Tm. magnet system composed 11 superconducting dipoles 13 sets triplets. Several multipole magnets (an octupole coil, quadrupole sextupole coil) are nested together compact length HFRS-line. All them feature high field...
As promising magnet types, discrete-cosine-theta and canted-cosine-theta (DCT&CCT) superconducting magnets are designed for the High Energy Fragment Separator (HFRS), a fragment separator of Intensity Heavy Ion Accelerator Facility (HIAF). Quench protection is one key issues DCT&CCT due to low thermal conductivity between each turns slow transverse quench propagation. Thermal quench-back induced by center cooper wire as heater automatically feasible option wound with 6+1 type cables (six...
The High Intensity Heavy-ion Accelerator Facility (HIAF) is a new project under construction in China, which will provide beams of stable and unstable heavy ions with high energies, intensities, quality. This paper discusses the superconducting magnet system for this accelerator complex. It consist Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn peak field 12 Tesla ECR ion source operated at 45 GHz, 52 solenoids typically 676 mm...
Detachable adhesives are considered to be an essential strategy realize reuse and recycle of the bonded components, but it is a great challenge fabricate detachable adhesive with ultra-high bonding strength. In this study, electrically ionic conductive epoxy (IEPs) prepared through introduction poly(ethylene glycol) (PEG) 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM]TFSI) into epoxy. It found that initial strength more than 20 MPa can realized via adjusting PEG...
The China initiative accelerate driven system (CiADS) is dedicated to the safe disposal of long-lived nuclear waste. It consists a superconducting linac, subcritical fast neutron reactor system, high-power heavy metal spallation target, and other auxiliary devices. To constrain regulate beam, three magnet structures are applied linac portion. They made up two solenoids, horizontal steering dipole coils, vertical shielding coils with varying axial lengths. In OPERA-Quench, three-dimensional...
In this paper, we propose a novel gas-ionization sensor based on aligned multi-walled carbon nanotubes (MWNT) at normal temperature and pressure. It consists of an Al plate electrode, plastic thin film MWNT electrode. Breakdown voltages discharge currents are recorded through peripheral detecting circuit. I–V curves formed by cubic spline interpolation algorithm utilizing experimental data help the system improve accuracy. Some experiments conducted in order to explore gas properties, such...
Oxygen and carbon are important elements in stellar populations. Their behavior refers to the formation history of C O abundances would also obviously influence opacities overall metal abundance $Z$. With observed high-quality spectroscopic properties, we construct models with elements, give more accurate ages for 70 metal-poor dwarfs, which have been determined be high-$\alpha$ halo, low-$\alpha$ halo thick-disk stars. Our results show that stars relatively older than by around 2.0 Gyr. The...
Electrospum polyaniline nanofibers doped with palladium nanoparticles have been demonstrated for hydrogen sensing in the formation of a chemresistor. These deposited as single across two gold electrodes by means near-field electrospinning without using conventional lithography process. nanoparticle based chemresistors recorded 1.8% resistance change environment 0.3% concentration. sensors are flexible good reversibility and potentially versatile doping different particles. As such,...
Abstract Engineered microbial ecosystems in biofilters have been widely applied to treat odorous gases from industrial emissions. Variations community structure and function associated with the removal of by are largely unknown. This study performed a metagenomic analysis discover shifts structures commercial scale biofilter after treating gas. Our identified 175,675 functional genes assigned into 43 KEGG pathways. Based on unigene sequences, there were significant changes The dominant...