A5100389839- Antenna Design and Analysis
- Antenna Design and Optimization
- Laser Material Processing Techniques
- Advanced Surface Polishing Techniques
- Advanced Antenna and Metasurface Technologies
- Aerospace and Aviation Technology
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Plant responses to water stress
- Image and Signal Denoising Methods
- Hydrology and Sediment Transport Processes
- Laser-induced spectroscopy and plasma
- 2D Materials and Applications
- Plant Water Relations and Carbon Dynamics
- Vehicle License Plate Recognition
- Astro and Planetary Science
- Machine Fault Diagnosis Techniques
- Plasmonic and Surface Plasmon Research
- Telecommunications and Broadcasting Technologies
- Advanced SAR Imaging Techniques
- Mathematical Analysis and Transform Methods
- Molecular Junctions and Nanostructures
- Guidance and Control Systems
- Plant Ecology and Soil Science
- Marine and coastal ecosystems
- Handwritten Text Recognition Techniques
Chinese Research Academy of Environmental Sciences
2025
National University of Singapore
2023-2025
Chengdu University of Information Technology
2024
China Aerodynamics Research and Development Center
2019-2024
China Three Gorges University
2024
University of Science and Technology of China
2015-2023
Rochester Institute of Technology
2022-2023
Harbin Institute of Technology
2021-2022
Lawrence Berkeley National Laboratory
2020
Fuzhou University
2017
The synchrosqueezed wavelet transform (SSWT) has been proven to be a powerful time-frequency analysis tool. However, this is unable deal with signals fast varying instantaneous frequencies. objective of paper overcome deficiency using the fractional (FRWT), which generalization conventional transform. We first propose FRWT (SSFRWT), shares many properties its SSWT counterpart while offering attractive new features. Then, we present theoretical SSFRWT, including derivation basic properties....
Abstract Human‐induced disturbances such as dam construction and regulation have led to widespread alterations in hydrological processes thus substantially influence plant characteristics the hydro‐fluctuation zones (HFZs). To reveal utilization of limited resources mechanisms inter‐specific competition species co‐existence communities based on niche breadth overlap under different HFZs Three Gorges Reservoir (TGR) China, we conducted a field investigation with 368 quadrats effects diversity...
Recently, synthetic aperture radar (SAR) image change detection has become an interesting yet challenging direction due to the presence of speckle noise. Although both traditional and modern learning-driven methods attempted overcome this challenge, deep convolutional neural networks (DCNNs)-based are still hindered by lack interpretability requirement large computation power. To drawback, wavelet scattering network (WSN) Fourier (FSN) proposed. Combining respective merits WSN FSN, we...
The reservoir water level fluctuation zones (RWLFZs) and the natural riparian (NRZs) are two ecosystems with dramatically opposite hydrological rhythms that notably influence plant guilds. However, little is known about discrepancies of functional traits niche characteristics guilds in RWLFZs NRZs under different flooding rhythms. aims this study were to assess divergent non-seasonal fluctuations on results showed 78 vascular species identified Xiangxi River basin. dominant annuals their...
The manipulation of two-dimensional (2D) ferromagnetic materials by spin current is emerging as the central theme 2D spintronics research. A paradigm spintronic devices, Hall magnetoresistance (SMR) device, has been elucidated to obtain direct evidence transfer torque (STT) on a three-dimensional (3D) ferromagnet. Here, we present pioneering results SMR effect in cobalt-doped MoS2/Ta van der Waals heterostructure, confirming existence STT magnetic-field angle dependence resistance. Our study...
The pursuit of nanoscale photonics and molecular optoelectronics has stimulated a lot interests in scanning tunneling microscope (STM) induced emission. In this work, we have introduced full quantum mechanical approach instead the previous semiclassical theory to consider quantized surface plasmon modes system. By considering mutual interactions between single molecule plasmon, studied electroluminescence from STM tunnel junctions. Due coupling plasmons, spontaneous emission rate...
This paper proposes a novel circular polarized microstrip array with high gain for satellite communication in X-band. In order to extend the impedance bandwidth, single-feed unit element is created without adding profile. The proposed antenna employs sequential rotation technique improve axial ratio bandwidth polarization purity. final design, an overall size of 91.6 mm x 45.8 mm×1.7 simulated. can provide 62.1% from 8.83 GHz 16.78 GHz, and 3 dB 9.84 11.52 GHz. realized at center frequency...
This paper proposes a new wide-beam bifilar helix antenna with earth coverage beam for satellite communication. Former antennas micro-satellites are focused on narrow-beam high-gain purpose and hard to realize the desired pattern within wide angle range, making them unsuitable applications. novel realizes uniform illumination of earth's surface miniaturized structure. (The radiation is obtained beamwidth θ in range ±56°). According calculation, modeled simulated. The simulation results show...
This article investigates the aerodynamic modeling problem of an axisymmetric missile with tiny units. Three force models for air-to-air standard model are established. The mathematical trigonometric series model, response surface and kriging roll moment coefficients developed. An error reduction approach is presented to determine configuration proposed models. In this approach, minimum residual sum square criterion acquired desired sample data point. Moreover, accuracy three further...
Insight into the response of deep soil moisture (SM) to land cover change is crucial for sustainable management regional water resources and ecosystems. However, budget resilience after revegetation are not clear. In this study, seven typical land-cover patterns (artificial arbor, shrub, economic tree, pasture, abandon grassland, natural grassland) were selected in four different study sites on Loess Plateau China. From May 2019 December 2020. situ SM was monitored daily at ten depths along...
We present a new experimental method for assessing subsurface damage (SSD) on optical glasses processed using fs-laser. The employed nanoindentation and Raman spectroscopy to characterize material damage. Statistically, our shows over 95% confidence SSD depths of 55 nm. According results, the fs-laser surfaces with optimized processing parameters revealed no detectable SSD, thus establishing feasibility polishing precision manufacturing.
Femtosecond laser polishing of glass is demonstrated for the first time, achieving controllable material removal and sub-nanometer surface roughness. This result opens a path complex optical processing tasks on various materials.
Recent studies have explored the delay propagation network among airports, traditionally assuming time series to be linear. This paper finds that nonlinearity is supported in data and makes inferences of Granger causality relation airports with a nonlinear method, namely multilayer perceptron. indicates whether delays at one airport can help predict itself or other airports. The inference method applied arrival China Europe, consequently, two networks are constructed. We find inputs...