Li Sun

ORCID: 0000-0003-2714-8526
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About
Contact & Profiles
Research Areas
  • ECG Monitoring and Analysis
  • EEG and Brain-Computer Interfaces
  • Dental Radiography and Imaging
  • Artificial Immune Systems Applications
  • Network Security and Intrusion Detection
  • Advanced Thermoelectric Materials and Devices
  • Ferroelectric and Piezoelectric Materials
  • Anomaly Detection Techniques and Applications
  • Phase-change materials and chalcogenides
  • Microwave Dielectric Ceramics Synthesis
  • Dental Research and COVID-19
  • Phonocardiography and Auscultation Techniques
  • Advanced Computing and Algorithms
  • Chalcogenide Semiconductor Thin Films
  • Advanced X-ray and CT Imaging

Tsinghua University
2015-2023

State Key Laboratory of New Ceramics and Fine Processing
2015

China Jiliang University
2011

SnSe, a "simple" and "old" binary compound composed of earth-abundant elements, has been reported to exhibit high thermoelectric performance in single crystals, which stimulated recent interest its polycrystalline counterparts. This work investigated the electrical thermal transport properties pristine Na-doped SnSe1-xTex polycrystals prepared by mechanical alloying spark plasma sintering. It is revealed that solid solutions are formed when x ranges from 0 0.2. An energy barrier scattering...

10.1039/c5cp05510e article EN Physical Chemistry Chemical Physics 2015-01-01

High-speed detection of abnormal frames in surveillance videos is essential for security. This paper proposes a new video anomaly-detection model, namely, feature trajectory-smoothed long short-term memory (FTS-LSTM). model trains an LSTM autoencoder network to generate future on normal streams, and uses the FTS detector generation error (GE) detect anomalies testing streams. loss indicator area. In training stage, applies trajectory smoothness (FTS) constrain layer. enables layer learn...

10.3390/s23031612 article EN cc-by Sensors 2023-02-02

Microstructure, phase transformation behavior and electrical properties of BaTi 1-x (Li 2/3 Nb ) x O 3 with x=0.01-0.40 ceramics have been investigated. Only perovskite is detected for all the compositions. The room temperature state experiences a from ferroelectric to paraelectric increasing x. Meanwhile, permittivity reduces, while Q×f value increases. A degree frequency dispersion dielectric peak obviously increased as increases 0.01 0.10. It great interest that abnormity represented by...

10.4028/www.scientific.net/amr.279.66 article EN Advanced materials research 2011-07-01

This work proposes a novel dual-scale lead-separated transformer for the auxiliary diagnosis of 12-lead electrocardiograms (ECGs). We added new structure design on basis traditional ECG signal processing, which led to our model with only 2.6M parameters. The output system is classification results. fixed 0.5 second segments each lead are interpreted as independent patches. Together reduced dimension signal, patches form representation. As method reduce interference from low correlation,...

10.1109/embc40787.2023.10340556 article EN 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) 2023-07-24
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