A5078776561- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
- Ga2O3 and related materials
- GaN-based semiconductor devices and materials
- TiO2 Photocatalysis and Solar Cells
- ZnO doping and properties
- Tribology and Lubrication Engineering
- Superconducting and THz Device Technology
- Advanced Thermoelectric Materials and Devices
- Turbomachinery Performance and Optimization
- Advanced Algorithms and Applications
- Smart Grid and Power Systems
- Fluid Dynamics and Heat Transfer
- Terahertz technology and applications
- Photonic and Optical Devices
- Advancements in Battery Materials
- Chaos control and synchronization
- Plasmonic and Surface Plasmon Research
- Metal Forming Simulation Techniques
- Aeolian processes and effects
- Intelligent Tutoring Systems and Adaptive Learning
- Layered Double Hydroxides Synthesis and Applications
- Topological Materials and Phenomena
- Analytical Chemistry and Sensors
- Electromagnetic Simulation and Numerical Methods
Lingnan Normal University
2005-2023
Zhanjiang Experimental Station
2020
University of New Hampshire
2020
Xi'an University of Technology
2018-2019
Central China Normal University
2013-2018
Beijing University of Posts and Telecommunications
2017
Huazhong University of Science and Technology
2017
Hefei University of Technology
2014
University of Jinan
2006
Jinan University
2006
The explosive growth of network traffic and its multitype on Internet have brought new severe challenges to DDoS attack detection. To get the higher True Negative Rate (TNR), accuracy, precision guarantee robustness, stability, universality detection system, in this paper, we propose a method based hybrid heterogeneous multiclassifier ensemble learning design heuristic algorithm Singular Value Decomposition (SVD) construct our system. Experimental results show that is excellent TNR,...
Li4Ti5O12/rutile TiO2 (LTO-RT) composites with Li/Ti molar ratios of 3:5, 4:5 and 4.5:5 have been successfully synthesized microspheres as a precursor. Furthermore, C-coated LTO-RT mesoporous ratio (C/4-5-LTO-RT) prepared based on the composite through hydrothermal method high temperature calcination. After various characterizations, it is found that carbon plays pivotal role in retaining porous nanostructure original as-prepared precursor overall process. Substantially, C/4-5-LTO-RT still...
Gas sensors with superior comprehensive performance at room temperature (RT) are always desired. Here, Au, Pt and Pt/Au-decorated graphene-based field effect transistor (FET) for ammonia (denoted as Au/Gr, Pt/Gr Pt/Au/Gr, respectively) designed fabricated. All these devices exhibited far better RT sensing performances compared graphene devices. Applying positive back gate voltages can further enhance their in which the Pt/Au/Gr show such a response of -16.2%, recovery time 4.6 min,...
In tutoring systems, students are more likely to utilize hints assist their decisions about difficult or confusing problems. the meanwhile, with weaker knowledge mastery tend choose than others stronger mastery. Hints important assistances help deal questions. Students can learn from and enhance this paper we firstly use alone build a model named Hints-Model predict student performance. addition, matrix factorization (MF) has been prevalent in educational fields performance, which is derived...
Hydrodynamic effects of mussel farms have attracted increased research attentions in recent years. The understanding the hydrodynamic impacts is essential for predicting sustainability farms. A large farm includes thousands droppers, and combined drag on droppers sufficient to possibly affect longevity entire long-lines. This article intends study wake an individual long-line dropper using computational fluid dynamics approaches. Two equivalent rough cylinders, namely, Curved-Model...
Effective detection of NO2 and NH3 gases at room temperature (RT) is critical for environmental monitoring protection. Here, graphene-based gas sensors (Cu/Gr device) single layer graphene decorated by 6, 8 10 nm thick Cu layers with instead conventional metal as interdigital electrodes are designed fabricated. The RT performance both can be greatly enhanced UV light illumination which closely related to the thickness in device (8 Cu/Gr exhibits best performances. Analysis XPS reveals that...
In this paper, A three-dimension (3-D) formulation of the auxiliary difference equation (ADE) finite-difference time-domain (FDTD) method with weighted Laguerre polynomials (WLPs) is proposed to model electromagnetic wave propagation in thin graphene sheets. The conduct current as an variable introduced establish relationship between electric field intensity and surface conductivity graphene. One numerical example sheets calculated. Compared ADE-FDTD method, results from show its accuracy...
We present a high-performance terahertz (THz) radiation source based on the photon-activated charge domain (PACD) quenched mode of GaAs photoconductive antennas (GaAs PCA). The THz characteristics PCA under different operating modes are studied. Compared with linear mode, intensity wave radiated by can be greatly enhanced due to avalanche multiplication effect carriers in PACD mode. results show that when carrier ratio is 16.92, peak-to-peak value field increases as much about 4.19 times...
Adhesive bonding is a novel structural connection method for composite and metal materials in the aerospace field. In this paper, gluing separating process bonded anchor nut proposed. The to mounting plates made of aluminum alloy 7050-T7451, titanium TC4-DT, material ZT7H/5429. ejection force, torque, vibration installed are tested. frequency set at 30Hz, with an amplitude 11.43±0.38mm, cycle 30,000, 40,000, 50,000 times, respectively. After test, nuts heated 150℃, 200℃, 250℃, retained 35-45...