A5100756243- Smart Materials for Construction
- Icing and De-icing Technologies
- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Aeolian processes and effects
- Wind and Air Flow Studies
- Military Defense Systems Analysis
- Neural Networks Stability and Synchronization
- Guidance and Control Systems
- Antenna Design and Optimization
- Neural Networks and Applications
- Metamaterials and Metasurfaces Applications
- Cryospheric studies and observations
- Nuclear Physics and Applications
- Arctic and Antarctic ice dynamics
- Piezoelectric Actuators and Control
- Distributed Control Multi-Agent Systems
- Electromagnetic Launch and Propulsion Technology
- Aerodynamics and Fluid Dynamics Research
- Thermography and Photoacoustic Techniques
- Geophysics and Gravity Measurements
- Hydraulic Fracturing and Reservoir Analysis
- Plant chemical constituents analysis
- Planetary Science and Exploration
Nanjing University of Aeronautics and Astronautics
2016-2025
Air Force Engineering University
2023
Jiangsu University
2023
Southwest Forestry University
2023
Sanya University
2022
University of Electronic Science and Technology of China
2022
University of South Florida
2021
Yancheng Teachers University
2017
Xiamen University
2012
Shanghai University
2003
Aflatoxin B1 (AFB1) contamination has received considerable attention for the serious harm it causes and its wide distribution. Hence, efficient monitoring is of great importance. Herein, a space-confined electrochemical aptasensor AFB1 detection developed using conductive hydrogel. Plasmonic gold nanoparticles (AuNPs) methylene blue-embedded double-stranded DNA (MB-dsDNA) were integrated into Au-hydrogel by ultraviolet (UV) polymerization. Specific recognition aptamer released MB from...
The accumulation of ice in critical regions on the surfaces modern aircraft is a serious threat to flight safety, and so for be able fly safely all weathers, they must capable reliable early warning icing online measurement thickness. In this paper, an ultrasonic pulse-echo technique combined with signal processing proposed ice-thickness measurement. early-warning sensitivity ability are verified through both simulations experiments. simulation results show that (i) method can identify water...
Density is an important parameter for characterizing the type of ice and has a significant impact on accuracy icing detection energy consumption anti-icing. However, existing techniques cannot quantitatively measure density without disrupting process. In this study, novel approach dynamically measuring proposed. Ultrasonic pulse echo (UPE) technique was used to thickness during The correlation between ultrasonic attenuation established through numerical simulation. Subsequently, experiments...
Abstract In this paper, a novel Adaptive Parameter Strategy Differential Evolution (APSDE) algorithm is proposed to overcome the parameters dependence and avoid local optima. The Update Mechanism (PUM), which has three different strategies, used reduce on of DE. Proportion Adjustment (APAM) balance proportion PUM strategies in development terms exploitation exploration, Random Restart (RRM) improve population diversity when stagnation. verified CEC2018 test functions results show that APSDE...
Article Generating series and nonlinear systems: Analytic aspects, local realizability, i/o representations was published on January 1, 1992 in the journal Forum Mathematicum (volume 4, issue Jahresband).
When an aircraft passes through clouds containing supercooled water droplets, the leading edge’s surface will gradually accumulate ice. Ice roughness is important parameter affecting local convective heat transfer coefficient and collection coefficient, which in turn affect ice’s shape. However, because of icing a transient value varying time space, it extremely difficult to measure with existing methods real time. In this study, noncontact ultrasonic pulse-echo (UPE) technique applied...
This study compares the propagation characteristics of acoustic emission signals for wood containing ferrous material by implanting nails into specimens to investigate (AE) detection method foreign metal objects inside wood. It obtains comparative test drilling holes and identical Zelkova schneideriana Pinus sylvestris var. mongholica specimens. Initially, AE source is generated conducting pencil-lead break (PLB) tests on specimen surfaces according ASTM standards, are then collected at...
Electrothermal deicing system is one of the most promising aircraft icing protection systems. This paper has used a numerical simulation method to study airfoil electrothermal system. The multilayer structure heat transfer model was established. Enthalpy introduced simulate ice-water-phase transition process. AUX discretize conduction equation, and for calculation two-dimensional performance developed. We designed produced an test with in large-scale wind tunnel carried out, which verified...
A gain enhancement technique for microstrip antenna arrays is demonstrated which relies on a superstrate-substrate geometry. The of this configuration has been by series experiments several over X to Ku frequency bands. set results superstrate layer E/sub 2/=10 shown, where the original 10*8 comb-line array with substrate r1/=2.8, 1.8-mm thick.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Currently, multi UAVs formation is very hot. Since it can greatly increase task efficiency. UAV has many research points like trajectory optimization, holding, optimal configuration, switch, obstacle avoidance, and regrouping, etc. But in our paper, we mainly focus on follower avoidance regrouping. Firstly, propose an algorithm which used UAV. Secondly, introduced PX4's position controller for To the end, make some simulations to verify strategy, formation.
ABSTRACT The model of Nano quad-rotors contains many uncertainties such as an external disturbance from a wind field, highly non-linear strong coupling between variables and body measurement errors. To deal with these control the quad-rotors, novel data-based observer (DO) is firstly proposed to observe disturbances field perturbations errors parameter estimation. Then DO used improve conventional dynamic inversion (DI) method obtain enhanced (EDI) method, which relies only on roughly...
A mechanically controlled switchable wideband frequency–selective rasorber/absorber, with the transmission window inside absorption band, based on a surface and rotatable metal plate, is presented in this paper. The of rasorber/absorber over 90%, from 3.9 GHz to 11.77 GHz, when plate parallel rest layers, its coefficient can reach up 0.62 at 11.6 perpendicular layers. mechanism are explained by monitoring analyzing current distribution frequencies. control method simple, reliable accurate....
A series of [Fe 80 Ni 20 -O/ZnO] n multilayer thin films with different ZnO separate layer thicknesses (t, from 0 to 3 nm) and fixed Fe -O thickness (about 5 have been fabricated on (100)-oriented silicon wafers glass substrates by reactive magnetron sputtering. Microstructure analysis static magnetic measurement results indicate that the properties can be adjusted variation monolayers thickness. All reveal an evident in-plane uniaxial anisotropy (IPUMA). The values fields (H k ) resistivity...
In the study of aeolian sand saltation,the interactions between wind and particles are key.Both macro-sized unsteady feature micro-sized high frequent turbulence prevalent simultaneously in field gust would lead to fluctuant sand-transport rate intermittent saltation process wind-sand flow.While time-averaged velocity is used analyze natural flow,the turbulent intensity flow cause huge errors.It may be reason why results derived from observation,the wind-tunnel experiment numerical...