A5101758674- Physics of Superconductivity and Magnetism
- Theoretical and Computational Physics
- Traffic control and management
- Transportation Planning and Optimization
- Advanced Condensed Matter Physics
- Icing and De-icing Technologies
- Traffic Prediction and Management Techniques
- Video Surveillance and Tracking Methods
- Face and Expression Recognition
- Asian Culture and Media Studies
- Higher Education and Teaching Methods
- Advanced Algorithms and Applications
- Fault Detection and Control Systems
- Advanced Control Systems Optimization
- Plasma and Flow Control in Aerodynamics
- Quantum many-body systems
- Traffic and Road Safety
- Wireless Communication Networks Research
- Quantum, superfluid, helium dynamics
- Advanced Decision-Making Techniques
- Ideological and Political Education
- Quantum and electron transport phenomena
- Complex Network Analysis Techniques
- Machine Learning and ELM
- Advanced Sensor and Control Systems
Air Force Engineering University
2003-2025
PLA Army Engineering University
2022
East China Normal University
2021
North China University of Technology
2004-2019
Southwestern University of Finance and Economics
2015-2016
Shenzhen Second People's Hospital
2015
Changchun University
2011
University of Science and Technology Beijing
2010
Hunan Normal University
2005-2009
Southwest Jiaotong University
2007
With the development of automated logistics systems, flexible manufacture systems (FMS) and unmanned factories, application guided vehicle (AGV) gradually become more important to improve production efficiency automatism for enterprises. The AGV play an role in reducing labor cost, improving working conditions, unifying information flow logistics. Path planning has been a key issue control system. In this paper, two problems, shortest time path collision multi have solved. An improved A-Star...
The emerging advanced intelligent transportation systems, such as connected vehicles (CV) and cooperative vehicle-to-infrastructure system (CVIS), attract much research attentions nowadays. Taking the advantages of first, this article develops a joint control model which optimizing speeds coordinating signals along an arterial simultaneously. This forms into platoons so that can pass through intersections together with no stops or least stop time. At same time, it optimizes signal timing...
The three-dimensional classical XY model on a cubic lattice has been studied using Monte Carlo simulations. finite-size scaling method of the phenomenological renormalization group used to calculate critical exponents \ensuremath{\nu}, v, and \ensuremath{\beta} correlation length, helicity modulus, order parameter. Good agreement with series-expansion results is obtained.
We carry out Monte Carlo simulations of the uniformly frustrated 3d XY model as a for vortex line fluctuations in high Tc superconductor. A density lines f=1/25 is considered. find two sharp phase transitions. The low T an ordered lattice. normal liquid with much entangling, cutting, and loop excitations. An intermediate found which characterized disentangled lines. In this phase, system displays superconducting properties direction parallel to magnetic field, but behavior planes perpendicular field.
We have carried out a Monte Carlo study of anisotropic 3D uniformly frustrated XY models, as model for the type-II high-${\mathit{T}}_{\mathit{c}}$ superconductors. Vortex-line-lattice melting, vortex-line cutting, and entanglement been studied in relation to superconducting phase transition.
In this paper, a color image encryption method based on finger vein key and off-axis digital holography with phase-modulated reference light is proposed. the process, firstly channel separation operation performed plaintext image, "red", "green" "blue" channels grayscale data of are obtained respectively. Subsequently, quantum matrix user generated through generation program used as scrambling index key, mask phase keys in next steps. The each original then encrypted using DNA coding...
Superfluid $^{3}\mathrm{He}$ in very narrow slab and cylindrical geometries is studied using the Ginzburg-Landau approach. It found that, case of slabs, effect boundary to favor formation A phase. At lower temperatures, this phase unstable against a deformed B Both states are locally stable can be supercooled or superheated. The diagram for resembles that magnetic field. superfluid densities along channel both diffusive specular conditions computed. Similar results obtained geometry. In...
We carry out Monte Carlo simulations of the uniformly frustrated three-dimensional XY model as a for vortex-line fluctuations in high-temperature superconductors an applied magnetic field. show, comparing systems different size, that there are two distinct phase transitions. At lower ${\mathit{T}}_{\mathit{c}\mathrm{\ensuremath{\perp}}}$, vortex lattice melts, and coherence is lost planes perpendicular to higher ${\mathit{T}}_{\mathit{c}\mathit{z}}$, tangle percolates throughout system,...
Ice accretion on the wings seriously threatens flight safety of an aircraft. From perspectives ensuring and saving power consumption, ice shape modulation method using distributed plasma is proposed. Distributed actuator units are designed to modulate spanwise continuous at leading edge into periodically segmented pieces, forming a wavy edge. Both airfoil scaled aircraft model, with modulated ice, experimentally investigated simulated. Compared can significantly improve aerodynamic...
We study the normal-to-superconductor transition, within two-dimensional gauge glass model, as a model of strongly disordered thin-film superconductors. The voltage-current characteristics are computed using dynamical simulation. At high temperature, we find expected result that E\ensuremath{\sim}${\mathit{J}}^{\mathit{a}(\mathit{T})}$, with a(T)>1 for large current. It crosses over linear resistivity at small Surprisingly, our results reveal low-temperature regime in which...
We carry out equilibrium and steady-state simulations of a periodic square Josephson-junction array in the presence transverse magnetic field giving uniform frustration f=2/5. find first-order transition to low-temperature superconducting phase. Linear resistivity above ${\mathit{T}}_{\mathit{c}}$ nonlinear below are interpreted terms vortex fluctuations.
This paper presents a novel fuzzy logic controller (FLC) for indirect vector control induction motor (IM) drive. The speed is used in the loop. 4 kW three-phase squirrel cage IM fed by current controlled voltage source inverter (CCVSI). complete scheme of drive implemented real time using TMS320LF2812 digital signal processor. simulation and experiments are carried out proposed system. model system developed MATLAB environment to analyze performances experimental results verify that FLC can...
Target tracking is one of the essential tasks in video-based surveillance system. A novel method which combined Kalman with Mean shift algorithm moving object proposed this paper. In Shift algorithm, a new adaptive bandwidth and kernel weights have been adopted, meanwhile extended filter has used fast track. Experimental results show that performs well target tracking.
We study the properties of a vortex-line liquid, within uniformly frustrated three-dimensional XY model, as model for type-II high-${\mathit{T}}_{\mathit{c}}$ superconductor. The vortex structure function S(${\mathbf{q}}_{\mathrm{\ensuremath{\perp}}}$,${\mathit{q}}_{\mathit{z}}$) is computed with Monte Carlo simulations, and our results compared hydrodynamic two-dimensional boson approximations. Properties elastic moduli are discussed.
We study the effects of dilute random pins on vortex ordering and flow within a bond-diluted Josephson-junction array in transverse magnetic field. find evidence suggesting that disorder drives ${\mathit{T}}_{\mathit{c}}$\ensuremath{\rightarrow}0; nevertheless, flux-flow resistivity dc current is reduced compared to pure array.
Abstract By implementing the quantum renormalization group method, effective Hamiltonian of spin‐ Ising model with regularly altering strengths both magnetic fields and exchange couplings are first derived analytically. Then, tripartite discord (QD) entropic uncertainty (EU) their phase transitions investigated. Moreover, critical points correlation length exponents analyzed, block–block EU site–site discussed through numerical calculations. It is found that under system size increasing,...
For Unmanned Aerial Vehicles (UAVs) with limited electrical power to achieve effectively anti-/de-icing at the leading edge of wing, a strategy ice shape modulation was proposed. Isolated simulated pieces printed by 3D printing technology are mounted on NACA0012 finite wing model, and its lift/drag coefficients suction-side velocity fields measured six-component force balance Particle Imaging Velocimetry (PIV), respectively. The ratio spanwise length single piece chord non-icing area between...
We study a three-dimensional classical XY model with strongly fluctuating, spatially uncorrelated, bond disorder. Finite-size scaling analysis of Monte Carlo simulation data has been used to determine critical exponents. Evidence for possible shift in exponents from the pure case is found. Connection recent experiments on superfluid phase transition $^{4}\mathrm{He}$ porous media discussed.
For hypersonic flow, it was found that the most effective plasma actuator is derived from an electromagnetic perturbation. An experimental study performed between flow and aerodynamic actuation interaction in a shock tunnel, which Mach number of 7 reached. The discharging characteristic acquired static flows. In field can affect characteristics. DC without magnetic force unstable, discharge channel cannot be maintained. When there field, energy consumption source approximately three to four...
A novel Parsimonious Genetic Programming (PGP) algorithm together with a aero-engine optimum data-driven dynamic start process model based on PGP is proposed. In application of this method, first, the traditional Programming(GP) used to generate nonlinear input-output models that are represented in binary tree structure; then, Orthogonal Least Squares (OLS) estimate contribution branches (refer basic function term cannot be decomposed anymore according special rule) accuracy model, which...