Browsing by Author "Zhang, X."

Now showing items 1-3 of 3

    • Diode-pumped passively Q-switched self-frequency-doubled ND:CNGS laser 

      Zhang, X.; Zhou, Y.; Yasukevich, A. S.; Loiko, P. A.; Mateos, X.; Xu, X.; Guo, S.; Wang, Z. (Optical Society of America, 2017)
      With Cr4+:YAG as a saturable absorber, a passively Q-switched self-frequencydoubled (SFD) laser based on a trigonal Nd:Ca3NbGa3Si2O14 (Nd:CNGS) silicate crystal was demonstrated for the first time. The maximum average output power at 532 nm was 16.2 mW, and the corresponding pulse repetition frequency, single pulse energy, pulse duration and peak power were 2.25 kHz, 7.2 μJ, 13.7 ...
      2023-12-15

    • Research on emg artifact suppression method for EEG signals based on 1D-CNN-LSTM hybrid model 

      Zhang, X. (БНТУ, 2025)
      Electroencephalography (EEG), as the core physiological signal reflecting the electrical activity of brain neurons, is susceptible to muscle activity interference during acquisition, generating Electromyography (EMG) artefacts that prove difficult to separate using conventional methods. Therefore, this paper proposes a hybrid 1D-CNN + LSTM framework incorporated with a mixed loss ...
      2026-01-23

    • 轻量级SAR 船舶检测：散斑注意机制的研究（基于YOLOv12） 

      Wang, W.; Zhang, X. (БНТУ, 2025)
      This paper presents an improved YOLOv12 model that integrates the Speckle Attention Mechanism (SAM) to enhance small target detection in complex scenes. The model utilizes a spatial-channel collaborative attention module to generate energy weight maps, achieving a lightweight design with a channel compression ratio of 1/8 and only a 1.2 % increase in parameters. Experiments on a ...
      2026-01-23