1A novel stepwise thresholding for fuzzy image segmentation HE Xiao-hai, LUO Dai-sheng, WU Xiao-qiang, JIANG Li, TENG Qi-zhi, TAO De-yuan1-122Study of preparation of BG/HA gradient coating on titanium alloy by electrophoretic deposition methodCHEN Xiao-ming, HAN Qing-rong, LI Shi-pu, XU Chuan-bo13-193MEG inversion using spherical head model combined with brain-shaped head modelLI Jun20-264The biological effect and medical functions of the Infrared RaysPANG Xiao-feng27-375Synthesis and characterization of PEG-coated poly(ethyl cyanoacrylate) nanoparticles ZHAO Jin-hua, SUN Duo-xian38-436Observation of the effect of cleaning the smear layer and tubule plugs with SEM YU Dan-ni, Dong Ya-Li44-46