A5010797221- Atomic and Molecular Physics
- Mass Spectrometry Techniques and Applications
- Advanced Chemical Physics Studies
- Advanced Battery Technologies Research
- Laser-Matter Interactions and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear physics research studies
- Ion-surface interactions and analysis
- Cold Atom Physics and Bose-Einstein Condensates
- Electric and Hybrid Vehicle Technologies
- Advanced DC-DC Converters
- Electric Vehicles and Infrastructure
- Particle accelerators and beam dynamics
- Fault Detection and Control Systems
- Radiation Therapy and Dosimetry
- Advancements in Battery Materials
- Spectroscopy and Quantum Chemical Studies
- Neural Networks Stability and Synchronization
- Transport Systems and Technology
- Advanced Frequency and Time Standards
- Sensorless Control of Electric Motors
- Spacecraft Dynamics and Control
- Industrial Automation and Control Systems
- Embedded Systems and FPGA Design
- Fullerene Chemistry and Applications
Henan Forestry Vocational College
2025
Institute of Modern Physics
2013-2024
Chinese Academy of Sciences
2013-2024
University of Chinese Academy of Sciences
2011-2024
Hong Kong University of Science and Technology
2023-2024
University of Hong Kong
2023-2024
China National Petroleum Corporation (China)
2021
Beijing Aerospace Flight Control Center
2021
SGIDI Engineering Consulting (China)
2019
Jilin University
2018
This paper investigates the problems of backstepping control for a class nonsmooth nonlinear systems. With help set-valued functions (or maps) and derivatives, new Lyapunov criterion is developed The concept semi-globally uniformly ultimately bounded (SGUUB) stability that widely used smooth systems in lower triangular form is, first time, applied to case, such provides theory foundation subsequent design. Then, two types continuous controllers are designed based on technique adaptive neural...
The efficiency performance of multi-motor-driven system highly depends on the power management. Three aspects contribution have been made in this study. 1) A predictive management for a DMPS is developed. To improve management, an adaptive velocity predictor proposed and coefficients can update its parameters according to identified driving patterns. Simulation results show that new best prediction compared with traditional predictors. 2) neural network based proposed. According optimization...
Electron emission from the single-electron capture with simultaneous single ionization in 30 keV/u He${}^{2+}$ on argon was investigated using a reaction microscope, providing electron energy spectra and momentum distributions. Intensive peaks for electrons near-zero kinetic energies have been observed. It is demonstrated that mechanisms contributing to include direct transfer (DTI), double-electron autoionization (DECA), (SECA) of target. Comparison resonance shows Ar${}^{+}$ ions SECA...
Abstract Astrophysical charge-exchange modeling depends on an accurate database of state-resolved and velocity-dependent cross sections. The sections, resolved by the quantum state with principal n orbital angular momentum ℓ , are pivotal in determining X-ray extreme ultraviolet (EUV) emissions following charge exchange between highly charged ions neutrals. However, current cross-sectional data primarily theoretically derived have undergone limited experimental validation. Using...
To investigate the behavioral changes and monoamine neurotransmitter levels in a rat model of chronic unpredictable mild stress (CUMS)-induced depression explore potential effects Vitamin B12 (VitB12) on CUMS rats underlying mechanisms. A total 72 Sprague-Dawley (SD) were randomly assigned to 3 groups, control group, group (subjected three weeks CUMS), + VitB12 (CUMS receiving microinjections neck). The body mass was measured, assessments conducted using sucrose preference test, open field...
We report here the direct measurements of electron momentum distributions for ethylene using (e,2e) reaction at different impact energies from 400 to 2400 eV. The "turn up" effects in cross sections 1b(3g) orbital compared with plane-wave impulse approximation calculations were observed low and high regions, such discrepancies become smaller increase energies. It is suggested that are due distorted-wave molecules, while appropriate theoretical distorted waves molecules could not be achieved...
Abstract The cross sections of state-selective charge exchange (CX) between highly charged ions and neutrals are important for modeling extreme ultraviolet soft X-ray emissions in many astrophysical objects with hot plasma impacting cold media. By using cold-target recoil-ion momentum spectroscopy, we measure O 6+ CX collisions He H 2 the collision energy range 19.5 to 100 keV amu −1 . relative single reported electron capture into 5+ (1 s nl ) n = 2, 3, 4, 5, ≥6 , respectively. With...
We measured the kinetic energy distributions of fragment ions doubly and quadruply ionized argon dimers using 3000 eV electron impact. For dissociation (Ar${}_{2}$)${}^{2+}$, peak that indicates radiative charge transfer is observed, where outer-shell ionization (dominant in highly charged ion collision) inner-shell (preferential x-ray experiments) have approximately equal contributions. (Ar${}_{2}$)${}^{4+}$, interatomic Coulombic decay electron-transfer-mediated are first observed...
An experimental investigation of the breakup ${(\mathrm{C}{\mathrm{O}}_{2})}^{3+}$ induced by $\mathrm{N}{\mathrm{e}}^{4+}$ ion impact at incident energies 1.12 MeV was performed. By analyzing momentum distributions and kinetic three fragment ions, nonsequential sequential dissociation mechanisms are verified. In contrast to highly charged impact, two different decay pathways were observed in present experiment. One pathway originates from primary cation populated into...
Abstract Charge exchange between highly charged ions and neutral atoms molecules has been considered as one of the important mechanisms controlling soft X-ray emissions in many astrophysical objects environments. However, for modeling charge emission, data n- l -resolved state-selective capture cross sections are often obtained by empirical semiclassical theory calculations. With a newly built cold target recoil-ion momentum spectroscopy (COLTRIMS) apparatus, we perform series measurements...
Breakup dynamics of ${\mathrm{C}}_{2}\mathrm{H}{{}_{2}}^{3+}$ $\ensuremath{\rightarrow}$ ${\mathrm{H}}^{+}+{\mathrm{H}}^{+}+\mathrm{C}{{}_{2}}^{+}$ induced by 50-keV/u ${\mathrm{Ne}}^{8+}$ ion impact is investigated employing a reaction microscope. All three ionic fragments in the final state are detected coincidence, and their momentum vectors as well kinetic energies determined. The kinetic-energy correlation spectrum two protons displays very rich structures. Utilizing Newton diagrams...
This paper presents a novel reaction microscope designed for ion–atom collision investigations, established at the Institute of Modern Physics, Chinese Academy Sciences, Lanzhou, China. Its time-of-flight (TOF) spectrometer employs an innovative flight-time focusing method consisting two acceleration regions, providing optimal time conditions charged fragments with diverse initial velocities. The TOF spectrometer’s axis intentionally tilts by 12° relative to ion beam direction, preventing...
We report an experimental and theoretical study of state-selective charge exchange processes in ${\mathrm{Ar}}^{8+}$ on He collisions at 1 3 keV/amu, benchmarking the fundamental electron capture dynamics under strong perturbations. The quantum-state selectivity has been experimentally resolved for one $1s$ into $4s$, $4p$, $4d+4f$, $5s$ states ${\mathrm{Ar}}^{7+}$ ion along with corresponding scattering angle differential cross sections. By comparing to calculations a two-active-electron...
We report an experimental observation of the interatomic Coulombic decay (ICD) and radiative charge-transfer (RCT) processes in a Ne dimer $(e,2e)$ following 380-eV electron impact. By detecting $\mathrm{N}{\mathrm{e}}^{+}\ensuremath{-}\mathrm{N}{\mathrm{e}}^{+}$ cation pair one emitted electrons coincidence, fingerprint ICD process initiated by inner-valence ionization is obtained. Furthermore, results ab initio calculations together unambiguously confirm occurrence RCT process, we show...
State-selective electron capture cross sections and projectile scattering-angle differential for single-electron in collisions of protons with He at energies ranging from 50 to 100 keV have been experimentally investigated by means a reaction microscope. It is shown that the ground-state transfer dominant channel, excited-state has relative small contributions sections. The transfer-excitation process minor contribution total As energy increases, remains dominant, but transfers become more...
A combined experimental and theoretical study on single capture in 30- 100-keV ${\mathrm{He}}^{+}$ He collisions was performed. By using a reaction microscope, we obtained the state selective cross sections angular-differential sections. It found that state-selective were good agreement with dynamic screening classical trajectory Monte Carlo calculation for incident. The comparisons various versions of such calculations reveal roles played by different electron-electron correlation effects....
In recent years, the development of Lithium-ion battery technology has promoted utilization management systems (BMS). BMS, developing a reliable state charge (SOC) estimation method is essential for managing and controlling batteries. Most research in this area focused on design model-based observers. This paper proposes self-adaptive super twisting sliding mode observer (SASTSMO) improved particle swarm optimization (IPSO) algorithm to estimate SOC, which could effectively suppress system...
The electron transfer mechanism was investigated for the single-electron-capture process in 3-keV/u ${\mathrm{Ar}}^{8+}$-He collisions with cold target recoil ion momentum spectroscopy. different state-selective capture processes were identified one $1s$ of He into $4s$, $4p$, $4d\text{\ensuremath{-}}4f$, and $5s\text{\ensuremath{-}}5p$ states ${\mathrm{Ar}}^{8+}$. We observed that to $4s$ mainly happens at small transverse momentum, while $4p$ large momentum. By comparing measured...
Phases of quantum transition amplitudes contain very important information about physical processes. However, as a rule, they may not be accessed experimentally. This is, in particular, the case when collisions ions and atoms are studied. In this rapid communication, we explore double-electron capture $\ensuremath{\alpha}$ particles with CO molecules. Regarding atomic cores molecule two ``slits,'' show that ``double-slit'' interference can exploited to experimentally extract phases...
Hot C(60) molecules under nanosecond laser excitation decay by a variety of fragmentation channels. An experimental search has been made to determine the temperature fragmented C(60)via analyzing momentum distributions prompt ionic fragments C(n)(+) (n ≤ 58). It was found that all precursors appearing as these have almost same and shows little variation with fluences in our limited range. The results provide clear evidence first-order phase transition is occurring at this temperature. value...
The momentum distributions of recoil ions were measured in the single ionization neon by electron impact at incident energies between 80 and 2300 eV. It was found that there are a noticeable number carrying large momenta, relative contributions these becomes more pronounced with further decrease energy. These observed behaviors indicate is strong projectile--target-core interaction single-ionization reaction. By comparing our results those electron-neon elastic scattering, we concluded...