Chi Gyun Song

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This study examined the effect of electronbeam (E-beam) irradiation on the electrical properties of n-GaN, AlGaN and AlGN/GaN structures on sapphire substrates. E-beam irradiation resulted in a significant decrease in the gate leakage current of the n-GaN, AlGaN and HEMT structure from 4.0×10 -4 A, 6.5×10 -5 A, 2.7×10 -8 A to 7.7×10 -5 A, 7.7×10 -6 A,(More)
Neonatal seizures caused by perinatal asphyxia and hypoxic-ischemic encephalopathy can be refractory to conventional anticonvulsants. This may be due to the depolarizing effects of gamma-aminobutyric acid (GABA) achieved by the activity of the Na(+)-K(+)-2Cl(-) cotransporter (NKCC1). The aim of this study is to evaluate the long-term effects of bumetanide,(More)
Constraint-induced movement therapy (CIMT) after stroke enhances not only functional reorganization but also structural plasticity of the brain in the adult rats. We examined whether forced limb-use which mimicked CIMT could influence ischemia-induced neurogenesis, apoptosis and behavioral recovery in the aged rats. Aged rats were divided into a sham group,(More)
We have demonstrated a polarization sensitive cartilage and muscle imaging based on common path optical coherence tomography (CP-OCT) using near infrared source. The axial and lateral resolutions of our PS-OCT system are 9m and 6m, respectively. The internal structural information has been extracted by the real-time signal analysis (Fourier Transform)(More)
33 cases of chronic renal failure (CRF) patients were treated by coloclysis with Chinese medicine Shenshuaifang (SSF). The effective rate was 60.61%, the total effective rate was 87.88%. It showed significant difference in the total effective rate compared with the control group (P less than 0.05). Animal experiments showed SSF could slow down the rising of(More)
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