Hai-bin Zhao

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This paper mainly studies about the data processing of brain computer interface(BCI) and presents a kind of method for classifying the ECoG motor imagery tasks. Both the training and testing ECoG datasets were filtered with the frequency band of 8–30Hz according to the event-related desynchronization and synchronization(ERD/ERS) phenomenon. The(More)
Electrocorticograms (ECoG) signals have many potential advantages and gained much attention for use with brain-computer interface (BCI). In this study, feature extraction using band powers was applied to ECoG signals from one subject performing imagined movements of either the left small-finger or the tongue. Probabilistic neural network (PNN) which was(More)
In this work, 4-layered SiO2/Bi2Te3/SiO2/Cu film structures were designed and fabricated and the optical properties investigated in the wavelength region of 250-1200 nm for their promising applications for direct solar-thermal-electric conversion. A typical 4-layered film sample with the structure SiO2 (66.6 nm)/Bi2Te3 (7.0 nm)/SiO2 (67.0 nm)/Cu (>100.0 nm)(More)
BACKGROUND Oocyte vitrification is widely used throughout the world, but its clinical efficacy is inconsistent and depends on the vitrification media. This study compared the developmental potential and clinical results of in vivo matured oocytes cryopreserved with different vitrification media. METHODS This retrospective study involved vitrified-warmed(More)
Intergeneric crop plant hybrid lines with small-segment chromosome translocations are very useful in plant genetic research and breeding. In this study, to create small-segment chromosome translocations with beneficial agronomic characters, the progeny of wheat-rye substitution lines 5R/5A and 6R/6A were selected from generations F 2 to F 5 for rye-specific(More)
In anticipation of the Dawn Mission to 4 Vesta, we conducted a ground-based campaign of Bessel BVRI filter photometry of five V-type near-Earth asteroids over a wide range of solar phase angles. We also obtained medium-resolution optical spectroscopy (0.38 lm < k < 0.92 lm; R $ 500) of sixteen near-Earth and main-belt V-type asteroids in order to(More)
In this study, a brain-computer interface (BCI) using electrocorticograms (ECoG) is proposed. Feature extraction is an important task that significantly affects the classification results. First, the discrete wavelet transform was applied to ECoG signals from one subject performing imagined movements of either the left small-finger or the tongue. After(More)
A brain-computer interface (BCI) is a communication system that translates brain-activity into commands for a computer or other electronic devices. In other words, a BCI allows users to act on their environment by using only brain-activity, without using peripheral nerves and muscles. The feature selection and classification methods of EEG signals are two(More)
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