A5101932670- 2D Materials and Applications
- Perovskite Materials and Applications
- Adaptive Control of Nonlinear Systems
- Crystallization and Solubility Studies
- Catalytic Processes in Materials Science
- X-ray Diffraction in Crystallography
- Vibration Control and Rheological Fluids
- Strong Light-Matter Interactions
- Dynamics and Control of Mechanical Systems
- Topological Materials and Phenomena
- Iterative Learning Control Systems
- Robotic Path Planning Algorithms
- Semiconductor Quantum Structures and Devices
- Advanced Chemical Physics Studies
- Advanced Control Systems Optimization
- Fuel Cells and Related Materials
- Vehicle Dynamics and Control Systems
- Hydraulic and Pneumatic Systems
- Molecular Junctions and Nanostructures
- MXene and MAX Phase Materials
- UAV Applications and Optimization
- Distributed Control Multi-Agent Systems
- Advanced Control Systems Design
- Graphene research and applications
- Gas Sensing Nanomaterials and Sensors
Yanshan University
2024
Nanjing University of Aeronautics and Astronautics
2020-2024
East China University of Science and Technology
2022-2024
Tsinghua University
2019-2023
Beijing Academy of Quantum Information Sciences
2021-2023
Shanghai Maritime University
2023
University of Birmingham
2023
North University of China
2023
University of Nottingham Ningbo China
2022
Chongqing University of Posts and Telecommunications
2018-2021
Single-photon emitters (SPEs) play an important role in many optical quantum technologies. However, efficient large-scale approach to the generation of high-quality SPE arrays remains elusive goal at room temperature. Here, we demonstrate a scalable method generating hexagonal boron nitride (hBN) with high yield, brightness, and purity using single-pulse irradiation by femtosecond laser. Our use single pulse per defect pattern minimized heat-related damages improved SPEs compared previous...
Semiconductors that can provide optical gain at extremely low carrier density levels are critically important for applications such as energy efficient nanolasers. However, all current semiconductor lasers based on traditional materials require high above the so-called Mott transition to realize gain. The new emerging 2D unprecedented opportunities studying excitonic physics and exploring mechanisms much lower due strong Coulomb interaction co-existence mutual conversion of complexes. Here,...
A robust finite-time control (FTC) framework using continuous terminal sliding-mode (SMC) and high-order observer (HOSMO) is discussed to realize the trajectory tracking of flexible-joint robots in this article. Control performances always suffer from unknown matched mismatched time-varying disturbances. Traditional SMC exists with a chattering phenomenon cannot cope disturbances due its inherent structure property. For reason, two HOSMOs are devised estimate on link motor side,...
Monolayer 2D semiconductors provide an attractive option for valleytronics due to the valley-addressability by helicity-specific light beam. But short valley lifetime excitons have hindered potential valleytronic applications. In this paper, we demonstrate a strategy prolonging converting trions through effective gate control and taking advantage of much longer than excitons. continuous-wave experiments, found polarization increases as voltage is tuned away from charge neutrality, with...
Two new metal–organic frameworks (MOFs), [Co(bcpp)(bbip)]·H2O (Co-MOF) and [Ni(bcpp)(bbip)]·H2O (Ni-MOF), have been generated based on a V-type flexible carboxylic ligand 3,5-bis(4-carboxyl phenoxy) pyridine (H2bcpp) rigid N-donor 1,1′-(1,4-phenylene)bis(1H-benzimidazole) (bbip) by solvothermal method. Co-MOF Ni-MOF are isostructural with 2-fold interpenetrated layered structure. Moreover, series of bimetallic CoxNiy-MOFs (x/y = 1:1, 2.5:1, 2.75:1, 3:1, 3.25:1, 3.5:1) were obtained using...
Low-altitude mobility, exemplified by unmanned aerial vehicles (UAVs), has introduced transformative advancements across various domains, like transportation, logistics, and agriculture. Leveraging flexible perspectives rapid maneuverability, UAVs extend traditional systems' perception action capabilities, garnering widespread attention from academia industry. However, current UAV operations primarily depend on human control, with only limited autonomy in simple scenarios, lack the...
MnOx and MoOx, as additives, have proved effective in enhancing the NH3 selective catalytic reduction activity of catalysts. In this study, a new Mn–Fe–Mo catalyst was prepared using both precipitation method impregnation method. The redox properties, surface acidity, reaction intermediates catalysts were analyzed various techniques. test results showed that MFMo4 achieved NOx conversion rate exceeding 90% over temperature range 120–390 °C, demonstrating high potential to replace V-based due...
This work presents a robust finite-time output feedback control method for number of nonlinear systems that suffer unpredictable time-varying disturbances. The developed takes advantage techniques based on state observer used to estimate the lumped disturbance, where estimator plays an important role in online compensation after being transmitted corresponding controller. Besides, with estimation provided by observer, controller can guarantee stability closed-loop system. experimental...
To enable the widespread adoption of residential energy storage, sustainable, low-cost, long-life, and energy-dense battery technologies are required. Sodium-ion offers many these characteristics, however often system is tailored for rather than cycle life. In this work, effect synthesis conditions upon primary agglomerated secondary particle size shape sodium-ion cathode material NaNi1/3Fe1/3Mn1/3O2 was investigated optimization A two-level full factorial experimental design utilized to...
Global optimization algorithms have been widely used in the field of chemistry to search global minimum structures molecular and atomic clusters, which is a nondeterministic polynomial problem with increasing sizes clusters. Considering that computational ability graphic processing unit (GPU) much better than central (CPU), we developed GPU-based genetic algorithm for structural prediction clusters achieved high acceleration ratio compared CPU. On one-dimensional (1D) operation GPU, taking...
Coexistence and mutual conversion of various excitonic species in semiconductors are the essence Mott physics underpin important device applications such as or polaritonic lasers. The emergence monolayer provides unprecedented opportunities to study these fundamental issues due much larger exciton binding energies. In this paper, we evolution coupled exciton–trion system electrically gated MoTe2 devices. Contrary conventional linear scaling, found that density exhibits an abnormal...
The active vibration damping actuator uses dual-motors to drive two sets of eccentric wheels achieve reduction, but the backlash nonlinearity and load will cause speed position be out synchronization, which influence system reduction effect. traditional parallel control strategy controls dual motors separately without consideration internal coupling effect, leading a poor synchronization performance. In order solve these problems, difference cross-coupled based on multiple-input...
Although the conventional control strategy of Bearingless Switched Reluctance Motors (BSRMs) can realize stable suspension motor shaft, it still has disadvantages such as relying on model calculation, strong coupling between torque and displacement, poor anti-interference ability. In order to solve these problems, this paper studies a direct displacement (DDC) for single-winding BSRMs (SWBSRMs). This draws idea magnetic bearings, realizes premise separating from mathematical online...
The main spiral blade of non-fixed wing aircraft will produce periodic vibration force when rotating, which not only reduce the service life airborne equipment, but also greatly affect working state pilots. Due to narrow damping band passive device, it is difficult meet reduction requirements modern aircraft. Therefore, this article proposes an eccentric mass block type electrical control system based on active Force actuator and a prototype developed. In article, output model wheel anti...
Abstract In this work, the MnCeTiO X catalyst was prepared by sol-gel method and doped with thulium (Tm), which improved its low-temperature selective catalytic reduction (SCR) activity resistance to SO 2 poisoning. paper, surface properties of Tm-doped catalysts were studied analysed means BET, XRD, SEM, NH 3 -TPD, H -TPR XPS. The performance tested using simulated flue gas. results show that Tm doping can effectively inhibit crystallization degree TiO , increase specific area, make...
The main spiral blades of helicopter and other non fixed wing aircraft are in the asymmetric unsteady aerodynamic environment for a long time, which will make body produce large-scale multi-directional low-frequency vibration, become vibration source body. linear actuator can only single direction driving force, is difficult to meet high-precision reduction requirements. Based on this, direct drive control system based space-time coupling method rotating coordinate proposed. Firstly,...