1Changes of Tolerance and Cardiovascular Responses to Head-up Tilte Combined with LBNP Following Preceding Exposure to Head-down TiltYAO Yong-jie, SUN Xi-qing, YANG Chang-bin, LIU Ting-song, WU Yan-hongORIGINAL RESEARCH157-1622Simulation Study on Cereral Blood Flow during WeightlessnessFENG Dai-ya, SUN Xi-qing, LU Hong-bingORIGINAL RESEARCH163-1663Changes of Calcitonin Gene Related Peptide in Efferent Vestibular System and Vestibular Nuclei in Rats with Motion SicknessWANG Xiao-cheng, FENG Li-ning, ZHANG Zuo-ming, HUI Rui, WU Sheng-xiORIGINAL RESEARCH167-1704Study on Inhibitory Effects of Mouse Circadian Gene Period2(Per2) on EMT6 CellsHUA Hui, WANG Yue-qi, WAN Chao-min, LIU Yan-you, WANG Xiao-jia, WANG Zheng-rongORIGINAL RESEARCH171-1755Study on Expression of Circadian Gene mPeriod1 (mPer1) in Mice Brain of Morphine Dependence and WithdrawalWANG Xiao-jia, WANG Yue-qi, LIU Yan-you, HUA Hui, XING Hao-yang, WANG Zheng-rongORIGINAL RESEARCH176-1786Frequency Analysis of Periods of Spontaneous Biological Rhythm in Mice under Different Light-dark CycleYANG Bo, LIU Yan-you, WANG Yuhui, JIANG Zhou, XIAO Jing, WANG Zheng-rongORIGINAL RESEARCH179-1827Modulation of NADH Oxidase Activity and Associated Superoxide Production Rate in Skeletal Sarcoplasmic Reticulum Vesicles by Na+ and K+ZHOU Zhen-jie, LIU Ren-chen, CAI Zhi-yin, CHU Ke-ping, XIA Ruo-hongORIGINAL RESEARCH183-1888Protective Effects of Pine Pollen on the Gut Microecology of Rats under Chronic StressesBAI Shu-min, GAO Ai-xin, LEI Lang-wei, LI Pei-rong, LI Hong-yi, ZHENG Zhen, YANG Xiao-mingORIGINAL RESEARCH189-1939Finite Element Analysis of Multidimensional Heat Transfer during CryosurgeryZHAO Gang, LIU Zhi-feng, CHENG Shu-xiaORIGINAL RESEARCH194-19810Study on Feasibility of One-step Electrochemical Conversion of CO2SONG Shuang, QIU Jian-ping, HE Zhi-qiao, CHEN Jian-mengORIGINAL RESEARCH199-20311Analysis of Pulse Signal Based on Wavelet Transform Zero-crossingBAI jin-xing, ZHAO zi-ying, WANG yan-pingORIGINAL RESEARCH204-20712Study on a New Type Impedance Blood Flow Measurement System Based on Integrative Miniature ElectrodesYANG Yu-xing, SHU Mei-xia, LUO Jie, ZHOU Li-mingORIGINAL RESEARCH208-21113An Improved Gradient Vector Flow(GVF) Snake Model for Lymphatic Ultrasonic Image Segmentation Based on Edge FlowZHANG Jun-hua, Wang Yuan-yuan, SHI Xin-ling, DONG Yi, WANG YiORIGINAL RESEARCH212-21614Differential Integrated Backscatter Imaging for Monitoring the Formation of HIFU-induced Lesions in Soft TissueZHONG Hui, JIANG Yi-feng, WAN Ming-xi, WANG Su-pinORIGINAL RESEARCH217-22115In Vitro Biocompatibility Tests of a Bioceramic Coating Cladded by LaserDENG Chi, WANG Yong, ZHANG Ya-ping, GAO Jia-chengORIGINAL RESEARCH222-22416Comparison of Curative Effects between Chronoradiotherapy and Routine Radiotherapy for Nasopharyngeal CarcinomaLI Guang-ming, LIU Yan-you, ZHU Bin, Wen Shi-min, LANG Jin-yi, WANG Zheng-rongBRIEF REPORT225-22717Effects of Na2ATP on Expression of MHC in Intrafusal and Extrafusal Fibers in Soleus Muscle of Tail-suspended RatsSHI Lei, FAN Xiao-li, WU Su-di, SONG Xin-aiBRIEF REPORT228-23018Development of QRS Detection TechniqueWANG Li-chuan, CHEN Yu-quan, PAN MinLITERATURE REVIEW231-234 