1Design of 64 element phased array ultrasonic transducer for transcranial magneto-acoustic stimulationLIU Xu, LIU Ruixu, MA Ren, ZHOU Xiaoqing, YIN Tao, LIU ZhipengRESEARCH PAPERS341-3472Research on real-time prediction of positive pressure ventilator waveforms by wavelet Kalman filter algorithmZHOU Ting, CHE Bo, DENG LinhongRESEARCH PAPERS348-3533A single-channel multiplier circuit for demodulating echo signal of ultrasound DopplerLIU Shuaishuai, PENG HuRESEARCH PAPERS354-3594Analysis on the consistency of extremely short-term heart rate variability and pulse rate variabilityPENG Min, HE Baolin, LIU Jing, YU LuRESEARCH PAPERS360-3655Carotidartery motion tracking based on ultra-high frame rate spatiotemporal ultrasound imagesMA Yixin, YANG Yabo, XU Shengjun, YUN WeiguoRESEARCH PAPERS366-3726Research on localization and segmentation of kidney and kidney tumors based on cascaded convolutional neural network in enhanced CT imagesWU Qianqian, ZHOU Leilei, WANG Siyu, LIU Chengyou, CHENG Long, TIAN Shuchang, JIANG HongbingRESEARCH PAPERS373-3797Far-focused ultrasound imaging based on adaptive zero-crossing factorZHANG Yadong, ZHENG Chichao, PENG HuRESEARCH PAPERS380-3888Preparation and performance study forsilk fibroin reinforced calcium alginate scaffold material with "reinforced concrete"structureWU Qiuhui, DING Shuoqiu, REN Tian, XU Ruiting, ZHOU Chao, ZHAO Baozhou, DENG Linhong, LIU YangRESEARCH PAPERS389-3949Preparation and properties of alginate composite hemostatic materialsZHU Xiaojie, MENG Jianwen, ZHU Xiaomin, LUO Xiyou, ZHANG Suwen, MA Xuebin, YANG ZhongboRESEARCH PAPERS395-40010Design and optimization of lower limb rehabilitation robot driven by parallel ropesWANG Yiming, WEI Yishan, HU Xiufang, ZOU Renling, XU Xiulin, LIN Haibo, BIN KehuaRESEARCH PAPERS401-40611Research on an oxygen saturation monitoring device with a in-ear sensor systemLI Weiquan, ZHOU WenguangRESEARCH PAPERS407-41212The precise placement method of surgical guides in orthopedic surgery based on augmented realityZHANG Zhenyi, LI Bin, DING Huanwen, YAN Xiaonan, TIAN LianfangRESEARCH PAPERS413-41913Overview of emotion recognition development of multi-physiological signal information fusion technologyYANG Jiehong, JIAO Xuejun, CAO Yong, LI Qijie, CHU Hongzuo, HUANG Mengying, JIANG JinREVIEWS420-42714Research progress on flexible sweat sensing technologyZHANG Qiang, WEI Gaofeng, YAN ShijuREVIEWS428-434,45415Application of intracardiac echocardiography in catheter ablation for atrial fibrillationLIU Huiyu, ZHONG JingquanREVIEWS435-43916Advance in intelligent technology of multi-functional nursing bedLI Sujiao, ZHU Huarui, HU Bingshan, YU Hongliu, SU YingbingREVIEWS440-44717Research status and development trend of human lower limb biomechanics simulation and experimentZHANG Xueling, REN Wu, WANG Shuting, CHANG Jinlong, LI Jia, HU BinbinREVIEWS448-45418Research progress of biodegradable piezoelectric composites in bone tissue engineeringDAI Xianglin, YAO Xijun, ZHANG Wenfeng, SHANG Jiaqi, DENG JiupengREVIEWS455-460 