Chao Liu

ORCID: 0000-0003-4030-6824
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About
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Research Areas
  • Antenna Design and Optimization
  • Direction-of-Arrival Estimation Techniques
  • Antenna Design and Analysis
  • Advanced Antenna and Metasurface Technologies
  • Advanced Multi-Objective Optimization Algorithms
  • Radar Systems and Signal Processing
  • Metaheuristic Optimization Algorithms Research
  • Radio Astronomy Observations and Technology
  • Speech and Audio Processing
  • Microwave Engineering and Waveguides
  • Advanced battery technologies research
  • Quantum Dots Synthesis And Properties
  • Chaos-based Image/Signal Encryption
  • Chalcogenide Semiconductor Thin Films
  • Supercapacitor Materials and Fabrication
  • Advancements in Battery Materials
  • Covalent Organic Framework Applications
  • Soil and Water Nutrient Dynamics
  • Atmospheric aerosols and clouds
  • Artificial Immune Systems Applications
  • Electromagnetic wave absorption materials
  • Atmospheric and Environmental Gas Dynamics
  • Evolutionary Algorithms and Applications
  • Image and Signal Denoising Methods
  • Hydrology and Watershed Management Studies

Xinjiang Medical University
2025

Hefei University of Technology
2015-2024

Anhui University of Science and Technology
2011-2021

Anhui Science and Technology University
2011-2021

University of Colorado Denver
2020

Nanjing University
2020

Sun Yat-sen University
2019

Chinese Academy of Meteorological Sciences
2019

Henan Polytechnic University
2019

Baidu (China)
2019

To develop and evaluate the performance of a deep learning system based on convolutional neural network (ConvNet) to detect dental caries from oral photographs.3,932 photographs obtained 625 volunteers with consumer cameras were included for development evaluation model. A ConvNet was developed by adapting Single Shot MultiBox Detector. The hard negative mining algorithm applied automatically train model evaluated for: (i) classification accuracy telling existence photograph (ii)...

10.1111/odi.13735 article EN Oral Diseases 2020-11-27

In this work, we have synthesized Al-doped MnO2 nanoparticles (Al-MnO2) by rapid coprecipitation followed hydrothermal and heat treatment. Al-MnO2 shows a specific capacitance of 301.8 F g–1 at 1 A in sample 14% Al-MnO2-260 °C. The still remains 206 20 g–1. It also good cycling stability with no degradation after 5000 cycles. More importantly, new type supercapacitor, Al-MnO2|PVA-Na2SO4//PVA-KOH|AC, has been designed using Na2SO4-poly(vinyl alcohol)//cation exchange membrane//KOH-poly(vinyl...

10.1021/acsenergylett.3c00439 article EN ACS Energy Letters 2023-04-03

Biomass burning (BB) in Southeast Asia is particularly pronounced during the dry season. However, complex topography and long-range transport inherent to have limited local research on pollution resulting from BB. In this study, monthly variation aerosol optical properties at six sites (Chiang Mai, Mukdahan, Bac-Lieu, Penang, Singapore, Bandung) fire-point distribution been analyzed detail. The Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model was used simulate 72-hour...

10.4209/aaqr.2018.08.0324 article EN Aerosol and Air Quality Research 2019-01-01

Breast cancer is a common clinical malignant tumor that seriously threatens women’s physical and mental health. Chemotherapy, as the first choice of breast treatment, has limited its application in clinic due to problems poor stability, short half-life, serious toxic side effects. With emergence nanotechnology, inorganic materials prepare mesoporous silica nanoparticles (MSNs) have been widely used anti-tumor drug carriers. However, their slow degradation rate limits biomedical field....

10.3390/inorganics13010012 article EN cc-by Inorganics 2025-01-04

Polyurethane/multiwalled carbon nanotube (PU/MWCNT) composite foams containing MWCNTs with long length (MWCNT-L and Ni@MWCNT-L) short (MWCNT-S) were prepared using an environmentally friendly water-blown method. The influence of different on the foaming process, morphologies, electrical conductivity, mechanical electromagnetic interference (EMI) shielding performances has been studied. PU MWCNT-L MWCNT-S hybrid fillers (PU/MWCNT-L-S) display a more uniform cell structure compared PU/MWCNT-L...

10.1021/acs.iecr.0c01766 article EN Industrial & Engineering Chemistry Research 2020-07-30

Virtual machine (VM) placement is a key technologyto improve data center efficiency. Most works consider VM problem only with respect to physical machine(PM) or network resource optimization. However, efficient should be implemented by joint optimization of above two aspects. In this paper, multi-objective model minimize the number active PMs, communication traffic and balance multi-dimensional use simultaneously within proposed. The improved evolutionary algorithm: NS-GGA also designed...

10.1109/icsess.2014.6933561 article EN 2014-06-01

A Schema-Guiding Evolutionary Algorithm (SGEA) is proposed in this paper. The novel SGEA has many good features. It proposes the schema-modified operator to adjust distribution of population. What's more, it constructs an elite-schema space and cluster-center schema guide direction individual's evolution. And by such two strategies, diversity population local global search power can be greatly improved. experimental results show that paper better performances, compared with other methods as...

10.1109/iacsit-sc.2009.31 article EN 2009-01-01

The inconsistency of conformal array elements poses a huge challenge to pattern synthesis. Based on convex optimization theory, this paper proposes novel directivity synthesis method. It can maximize the dual‐polarized arrays with low dynamic range ratio (DRR). Firstly, function is presented under array. Then based maximizing summarized as multiconstraint problem. In addition, DRR constraint introduced control weight range. By using Taylor expansion, problem transformed into and solved...

10.1155/2024/9320514 article EN cc-by International Journal of Antennas and Propagation 2024-01-01

Traditional space beamforming method cannot suppress interference with arbitrary polarization state for sensitive array. This paper proposes a joint and domain adaptive algorithm based on dual polarized conformal By introducing the information of signal into steering vector, conventional vector is extended to domain. Both co-polarized cross-polarized components are used so that domain, it can receive desired interferences parameters. The performance further improved by reconstructing...

10.1109/icsai48974.2019.9010296 article EN 2019-11-01

In order to overcome the cross polarization effect of conformal arrays, dual polarized array elements are used in this paper optimize both two orthogonal components pattern, simultaneously. The antenna has individual feed points excite or receive local co-polarized component and cross-polarized separately. Based on feature, a new signal model is established manifold analyzed. space expanded divided into spaces. And then, excitations each element form final beam pattern. At last, optimal...

10.1109/cisp.2014.7003919 article EN 2014-10-01

A dual-polarized multiple signal classification (DP-MUSIC) algorithm is presented to estimate the arrival directions and polarizations for a conformal array. Each polarization decomposed into two orthogonal components, which are considered be pair of coherent signals coming from same direction but different polarization. The parameters modeled as equivalent coherence coefficients components. Then, method decoherence can used decouple information states angles. After that, (DOA) estimated by...

10.1155/2019/8907685 article EN cc-by International Journal of Antennas and Propagation 2019-09-18
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