A5100782599- Nuclear physics research studies
- Microwave Engineering and Waveguides
- Gyrotron and Vacuum Electronics Research
- Crystallization and Solubility Studies
- Astronomical and nuclear sciences
- X-ray Diffraction in Crystallography
- Nuclear Physics and Applications
- Pulsed Power Technology Applications
- Nuclear reactor physics and engineering
- Topological Materials and Phenomena
- Catalytic Cross-Coupling Reactions
- Luminescence and Fluorescent Materials
- Ionosphere and magnetosphere dynamics
- GNSS positioning and interference
- Organoboron and organosilicon chemistry
- Postharvest Quality and Shelf Life Management
- Cold Fusion and Nuclear Reactions
- Radiopharmaceutical Chemistry and Applications
- Aeolian processes and effects
- Polysaccharides and Plant Cell Walls
- Robot Manipulation and Learning
- Advanced Thermodynamic Systems and Engines
- Quantum chaos and dynamical systems
- Chemical and Physical Properties of Materials
- Astrophysics and Star Formation Studies
Beijing Normal University
2023-2025
Beijing Academy of Science and Technology
2024-2025
Shanghai Academy of Agricultural Sciences
2023-2024
Fruit Research Institute
2023-2024
China University of Mining and Technology
2024
University of California, San Diego
2022-2024
Shandong Agricultural University
2023
Institute of Modern Physics
2020-2022
Chinese Academy of Sciences
2020-2022
Shaoxing University
2022
Within the framework of dinuclear system model, experimentally accessible projectile-target combinations are predicted for production new superheavy elements with $Z=119$ and $Z=120$. The entrance channel effect isotopic dependence targets projectiles on capture, fusion, survival stages fusion reaction discussed. reactions $^{45}\mathrm{Sc}+^{249}\mathrm{Cf}$ $^{50}\mathrm{V} + ^{246}\mathrm{Cm}$ found to be promising candidates synthesis element $Z=119$, achieving maximal evaporation...
Abstract The synthesis of a new tetraborylethylene (TBE) is reported, and its application in the preparation [4+0]‐tetraarylethenes (TAEs) elucidated. TAEs have widespread applications material science supramolecular chemistry due to their aggregation‐induced emission (AIE) properties. divergent stereoselective [3+1]‐, [2+2]‐, [2+1+1]‐TAEs via multiple couplings vinylboronates with aryl bromides demonstrated. These feature broad substrate scope excellent functional group compatibility mild...
A new, very short-lived neutron-deficient isotope ^{222}Np was produced in the complete-fusion reaction ^{187}Re(^{40}Ar,5n)^{222}Np, and observed at gas-filled recoil separator SHANS. The new identified by employing a recoil-α correlation measurement, six α-decay chains were established for it. decay properties of with E_{α}=10016(33) keV T_{1/2}=380_{-110}^{+260} ns determined experimentally. systematics Np isotopes is improved adding data ^{222}Np, which validates N=126 shell effect...
Abstract Luminescent materials with efficient aggregate‐state emissions are of growing interest due to their widespread applications in chemo‐/biosensing and optoelectronic devices. Aggregation‐induced emission (AIE) opens a new avenue for the luminescent materials. Among AIE luminogens (AIEgens), tetraarylethylenes (TAEs) typical AIEgens simple molecule scaffold could be utilized as framework further elaboration, enabling structure‐property‐function relationship studies multi‐functional...
A readily available disilane Me 3 SiSiMe 2 (O n Bu) as a silylene source has been developed for the synthesis of diverse silacycles via Brook- and retro-Brook-type rearrangement.
The progresses on production cross-sections of unknown nuclei in fusion evaporation (FE) reactions and multinucleon transfer (MNT) are reviewed. synthesis the superheavy (SHN) with [Formula: see text], 119, 120, 121, 122 FE is presented. As a promising pathway to produce neutron-rich nuclei, MNT near Coulomb barrier applied investigate generation heavy transuranium nuclei. predicted summarized. We make comparison radioactive beam-induced process for producing double magic text]Fl, which...
A rectangular tape helix slow-wave structure with infinitesimal thickness and finite width in free space is investigated. With the expansion of surface currents applications modified Marcatili's method, as well average power flow matching method at boundaries, dispersion properties interaction impedance for transverse antisymmetric modes a immersed are obtained. It shown that, compared results simplified sheath model by previous researchers, higher accuracy has been obtained between...
A new type of folded frame slow-wave structure (SWS) is introduced and used in the design a low-voltage, high-efficiency, widebandwidth millimeter-wave traveling-wave tube (TWT). The high-frequency characteristics structure, including dispersion properties, coupling impedances, reflection are investigated. beam-wave interaction TWT with SWS working at frequency range also calculated using 3-D particle-in-cell algorithms. simulation results reveal that sheet electron beam parameters 6000 V...
In this paper, a novel slow-wave structure (SWS), called quasi-parallel-plate (QPP), is proposed for terahertz (THz) backward-wave oscillator BWO design. Compared with the conventional SWSs, SWS has wider "cold" bandwidth and higher interaction impedance. The Particle-in-cell (PIC) results show that can produce over 0.82 W output power in operating frequency range from to 1 THz by utilizing an voltage 5 10 kV. efficiency entire band above 2.8%. This SWS, which employing circular electron...
Two kinds of novel 220 GHz folded-waveguide (FWG) slow-wave structure (SWS) with different electron-beam tunnels are presented for producing a high power and considerable bandwidth. These structures, which have the potential to better performance than conventional FWG SWS, suitable circle-beam electron guns sheet-beam guns, respectively. In this study, electromagnetic characteristics nonlinear interaction between beam field two investigated on basis simulation results. The influence tunnel...
Abstract Controversies exist among experiments and theories on the factor of astrophysical important reaction 12 C + for energies below 3 MeV. Only frequentist approaches have been used so far data analysis, confidence levels or theoretical errors are not available from previous predictions. In this study, Bayesian method is employed to provide predictions its 1 σ level based all currently experimental first time. The improved coupled-channels model CCFULL-FEM implemented with finite element...
A backward-wave oscillator (BWO) based on quasi-parallel-plate (QPP) slow-wave structure (SWS) is investigated. The high-frequency characteristics of the SWS are calculated, and performance BWO predicted through particle-in-cell method. By utilizing wire-EDM technique, QPP fabricated. preliminary experimental results reported in this paper.
Ultrathin topological insulator membranes are building blocks of exotic quantum matter. However, traditional epitaxy these materials does not facilitate stacking in arbitrary orders, while mechanical exfoliation from bulk crystals is also challenging due to the non-negligible interlayer coupling therein. Here we liberate millimeter-scale films Bi$_2$Se$_3$, grown by molecular beam epitaxy, down 3 quintuple layers. We characterize preservation surface states and well transferred...
Multiband(MB) imaging can greatly reduce scan time, but MB pulses often encounter peak amplitude constraints. An optimal phase schedule has been published for traditional single-transmit (sTx) RF pulses. However, after an initial evaluation, we found that it only marginal benefits parallel-transmit (pTx) We compared four common optimisation algorithms (fmincon, fminsearch, simmulated annealing, global search) to determine the most suitable algorithm choosing best offset phases a pTx pulse....
Diffusion MRI (dMRI) is inherently limited by SNR. 7T scans increase intrinsic SNR but suffer from regions of signal dropout, especially in temporal lobes and cerebellum. We applied dynamic parallel transmit (pTx) to allow whole-brain dMRI scanned 7 volunteers comparing pTx 2-spoke circularly polarized pulses. PTx increased mean 22%, produced cleaner fractional anisotropy maps, reduced fiber estimation uncertainty 4% (P=0.016) for first fibers 2% (P<0.001) second fibers. However, less...