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5 results on '"Liu Shaokui"'

1. Modeling and control system design of 6-DOF bionic parallel mechanism with compliant modules.

Author

Li, Ruyue, Zhu, Yaguang, Zhou, Shuangjie, He, Zhimin, Sun, Junli, and Liu, Shaokui

Subjects
COMPLIANT mechanisms, SYSTEMS design, BIONICS, MULTI-degree of freedom, LONG-distance running, ANIMAL behavior
Abstract

Quadrupeds are capable of dynamic movements such as fast running and long-distance jumping due to their flexible and elastic torso structures. In this paper, a compliant parallel mechanism is proposed as a bionic torso to simulate the diversified behaviors and agile locomotion of the tetrapod torso. The spring module is incorporated into the limb of the parallel mechanism to absorb external shocks, cushion, and dampen vibrations, thus improving the compliance performance of the bionic torso. For the compliant parallel mechanism, its kinematics and kinetics are analyzed, and the overall electromechanical system and control framework are devised. The multidimensional damping dynamic characteristics of the proposed mechanism are qualitatively analyzed by simplifying the limb into a spring–mass damping system. The parallel mechanism with compliant spring modules absorbs external forces to different degrees with different stiffness coefficients to avoid damage to the structure by external impacts. The parallel mechanism with different initial positions exhibits the inherent variable stiffness characteristics of the mechanism. The parallel mechanism simulates the diverse behavior of the animal torso, with independent and synthesized locomotor behavior of the six underlying motion patterns. Simulations and experiments demonstrated that the compliant parallel mechanism is effective in vibration damping and cushioning, with a rapid response and small steady-state error. The motion of the compliant parallel mechanism in one direction and the motion of the integrated multi-degree of freedom (DOF) are confirmed and exhibited in the behavioral experiment. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Gender differences in lipid goal attainment among Chinese patients with coronary heart disease: insights from the DYSlipidemia International Study of China

Author

Wang Jianjun, Si Liangyi, Dong Birong, Tan Chunyan, Zhang Liyang, Hu Lingzhi, Zhang Rufu, Xu Anding, Tian Wenhua, Dai Henghua, Wang Yongjun, Huang Taifu, Zhou Yu-Jie, Zhang Bei, Cui Yong, LvYun, Zhou Yali, Se Qiang, Ma Yan, Yang Jian, Zhang Baorong, TuQiuyun, Zheng Yang, Chen Xiaohong, Li Yanping, Jiao Kai, He Fengchang, Shen Xiuyun, Zhang Huifang, Feng Lie, Lu Xinjian, Ge Jun, Wang Yangwei, Xing Yulong, Liang Li, Wang Chunning, Hua Qi, Li Bao, Zou Xiangping, Ma Jianhua, Xiao Qian, Zhang Dadong, Liu Hong, Liu Hui, Cheng Mei, Dayi Hu, Chen Tielong, Zhang Liping, Zhou Xiaohui, Chen Jin, Yan Chuanzhu, Dong Yugang, XiGuangxia, Zhang Weijuan, Yang Wangpingm, Zhao Shuiping, Ye Ping, Li Hongjuan, Wang Aihong, Wu Zonggui, Bilian Yu, Liu Minling, Wu Hongyun, Jin Hui, Hu Zhiping, Li Qiang, Ma Changsheng, Huang Qiong, Song Zhi, Wang Dezhao, Huang Hongman, Miao Yide, Ma Aiqun, Ye Min, Yang Yifang, Zhang Hong, Chen You, GeWeihong, Xiang Yi, Luo Suxin, Baishaili M. Ambegaonakr, Yan Tao, Chen Jing, Pan Hongtao, Ren Liqun, Yu Jinming, Li Yong, Yu Bo, Yao Mingyu, Zeng Longyi, Bu Ai Jia Er, Pan Mingkang, Li Chengjiang, Huang Dejia, Di Yirong, Li Zhanquan, Jin Huigen, Wang Hanqiao, Yu Jiangyi, Shao Jingshan, Wang Chaohui, Qu Lijie, Li Xueyou, Chen Buxing, Hu Da-Yi, Shuiping Zhao, Chen Qiong, Li Zhengfang, Zhao Dong, Han Qinghua, Fei Lixia, Xing Xiaoping, Huang Jing, Yang Yu, Zhu Yulan, Dong Yumei, Liao Yuhua, Wang Lan, Yan Xiaowei, Cui Qin, Yang Gangyi, Liu Fan, Zhu Yi, Shi Yongquan, Fang Ningyuan, Wang Keying, Du Ping, Wu Jiang, Mu Yiming, Cheng Guoli, Zeng Ling, Wang Guixia, Zhang Saidan, Fan Limei, Yu Yan, Zhao Gang, Dai Shudong, NiuXiaoyuan, Wei Meifang, Sun Yufeng, Qian Huifen, Li Yuling, Li Nanfang, Li Qifu, Cao Guiwen, Liu Shaokui, Zhang Xuelian, Zeng Xiaoyun, Wu Jun, Liu Weidong, Guo Minxia, Zheng Qiangsun, Wu Xiaolin, Wu Dongmei, Yang Xinchun, Duan Lei, Wei Yidong, Liu Qiang, Liu Qingsong, Lv Hong, TengXiaochun, Chen Shao-Liang, Zhang Dongping, Wu Chun, Li Yansheng, Huang Ruowen, Zhao Xiuxin, Liu Xueping, Chen Hong, NieXiaoli, Deng Xiaomei, Liang Zerong, Hu Yiming, Wang Jian-An, Li Yanbing, Hu Yaojun, Qu Qiumin, Chen Liefeng, Liang Yongxue, Yang Xiaosu, Song Zhiyuan, Ding Xiaoyan, Zhang Fuchun, Hu Xueqiang, Luo Shaonian, Ma Qiang, Tian Haoming, Tong Qinwei, Chen Xiaofei, Cong Hong-Liang, Huang Gewen, Li Xin, Jiang Bin, Chen Min, Kuang Jinsong, Li Jun(Xinjiang), Wang Yaping, XueYuanming, Peng Qiaoqing, Huang Liming, Wang Xiaoming, Luo Benyan, Cui Shiwei, Zhang Chaoxin, Guo Hongmin, and Hua Fei

Subjects
medicine.medical_specialty, medicine.diagnostic_test, business.industry, Physical examination, Statin treatment, medicine.disease, Logistic regression, Coronary heart disease, Goal attainment, Diabetes mellitus, Internal medicine, Female patient, medicine, Physical therapy, lipids (amino acids, peptides, and proteins), Cardiology and Cardiovascular Medicine, business, Dyslipidemia
Abstract

Despite great advances in lipid-lowering therapy, the gender-based disparities in lipid goal success among Chinese coronary heart disease (CHD) patients receiving lipid-lowering treatment remained uncharacterized. Furthermore, little is known about potential causes for this gender imbalance. This cross-sectional trial included 25 697 patients treated with lipid-lowering agents from 122 centres between April 2012 and October 2012; data for 9420 participants with CHD were analysed in the present study; all underwent clinical examination and had their latest fasting lipid profiles while on lipid-lowering therapy recorded. Logistic regression was used to explore possible factors associated with gender disparity in goal attainment rates, and to what extent each factor contributes. Of 9420 CHD patients (42.5% women) evaluated, women had a significantly lower overall low-density lipoprotein cholesterol (LDL-C) success rate than men (46.2 vs. 62.7%, P < 0.0001). Among CHD patients with diabetes, only 31.5% of women and 46.4% of men ( P < 0.0001) attained the optional LDL-C target of

Published
2015

5. Comparison Between Spacecraft Design Load of Random Vibration.

Author

Zhang Yumei, Han Zengyao, and Liu Shaokui

Subjects
*SPACE vehicle design & construction, *VIBRATION (Mechanics), *STOCHASTIC processes, *RANDOM vibration, *ACCELEROMETERS
Abstract

It is an important step for spacecraft design and analysis to convert random vibration load to quasi static design load, which influences mass of spacecraft structure directly. The theory and methods of design load based on the peak value of acceleration response and displacement response were simply introduced. The differences between the two methods were compared by analytics and FEM. The design load based on the peak value of acceleration response is larger than that based on the peak value of displacement response. The design load based on the peak value of displacement response is recommended and will lighten mass of spacecraft structure. [ABSTRACT FROM AUTHOR]

Published
2013
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