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Journal of Biosciences and Medicines 2024年第9期12卷 62-72页

作者： Maiding He Li Huang Dekun Tang Mei Qin Ping Zhan xichan wang Xia Gao Jianzhu wang Na Yin Hui Xu Yonghua Yang Kaihua Tang Department of Rehabilitation Medicine Qujing No. 1 Hospital Qujing China

Objective: To explore the effect of lower limb rehabilitation robot combined with task-oriented training on stroke patients and its influence on KFAROM score. Methods: 100 stroke patients with hemiplegia admitted to our hospital from January 2023 to December 2023 were randomly divided into two groups, the control group (50 cases) was given task-oriented training assisted by nurses, and the observation group (50 cases) was given lower limb rehabilitation robot with task-oriented training. Lower limb balance, lower limb muscle strength, motor function, ankle function, knee flexion range of motion and walking ability were observed. Results: After treatment, the scores of BBS, quadriceps femoris and hamstrings in the observation group were significantly higher than those in the control group (P Conclusion: In the clinical treatment of stroke patients, the combination of task-oriented training and lower limb rehabilitation robot can effectively improve the lower limb muscle strength, facilitate the recovery of balance function, and have a significant effect on the recovery of motor function, which can improve the walking ability of stroke patients and the range of motion of knee flexion, and achieve more ideal therapeutic effectiveness.

关键词： Lower Limb Rehabilitation Robot Task-Oriented Training Stroke KFAROM

Research and Practice of Cardiopulmonary Rehabilitation Training Programs

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World Journal of Cardiovascular Diseases 2024年第9期14卷 557-566页

作者： Na Yan Maiding He Jinyue Jiang Juan Luo Ping Zhan xichan wang Xia Gao Jianzhu wang Na Yin Fang Ye Jinghua Yu Shiying Zhang Rehabilitation Medicine Qujing No. 1 Hospital Qujing China Rehabilitation Medicine Qujing Multi-Rehabilitation Hospital Qujing China

In today’s society, the incidence of cardiopulmonary diseases is increasing annually, seriously affecting patients’ quality of life. Therefore, developing a scientific and effective rehabilitation training program is of great significance. This study first analyzes the theoretical basis of cardiopulmonary rehabilitation training, including the effects of aerobic exercise, interval training, and strength training on cardiopulmonary function. Based on this, a comprehensive rehabilitation training program is designed, which includes personalized training plans, comprehensive interventions, multidisciplinary collaboration, patient education, and regular follow-up visits. The cardiopulmonary rehabilitation training plan developed in this study has certain scientific practicability, which provides a theoretical basis for cardiopulmonary rehabilitation training, and also provides a reference for medical institutions, rehabilitation centers and communities, which is helpful for promotion and application to a wider range of patients with cardiopulmonary diseases.

关键词： Cardiopulmonary Function Rehabilitation Training Program Aerobic Exercise Interval Training

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胶原/生物玻璃/明胶复合材料的研究

中国皮革 2017年第10期46卷 8-12页

作者：孟雪萍何茜婵王芳汤克勇郑州大学材料科学与工程学院河南郑州450001

将胶原、生物玻璃和明胶按照不同的比例复合制备了一种新型复合材料,通过X射线衍射(XRD)和扫描电子显微镜(SEM)表征了生物玻璃和复合材料的结构与形貌,并研究了其机械性能和孔隙率。结果表明:复合材料的机械强度基本达到松质骨的强度需... 详细信息

将胶原、生物玻璃和明胶按照不同的比例复合制备了一种新型复合材料,通过X射线衍射(XRD)和扫描电子显微镜(SEM)表征了生物玻璃和复合材料的结构与形貌,并研究了其机械性能和孔隙率。结果表明:复合材料的机械强度基本达到松质骨的强度需要,具有较高的孔隙率,达50%以上。该新型复合材料有望用于骨组织工程中的骨替代材料。

关键词：胶原明胶生物玻璃支架材料骨组织工程

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掺纤维分层胶结充填体力学强度特性试验

有色金属（矿山部分） 2022年第3期74卷 16-23页

作者：王喜婵郭忠林孙伟昆明理工大学国土资源工程学院昆明650093 云南省中-德蓝色矿山与特殊地下空间开发利用重点实验室昆明650093

针对充填体胶结强度低和易开裂等问题,开展纤维类型、分层数对充填体单轴抗压强度的影响规律试验研究。结果表明:未掺纤维的充填体为张拉破坏,掺纤维充填体受压膨胀呈现鼓状,整体裂而不断,保持较高的完整性。分层面在一定程度上劣化了... 详细信息

针对充填体胶结强度低和易开裂等问题,开展纤维类型、分层数对充填体单轴抗压强度的影响规律试验研究。结果表明:未掺纤维的充填体为张拉破坏,掺纤维充填体受压膨胀呈现鼓状,整体裂而不断,保持较高的完整性。分层面在一定程度上劣化了充填体力学性能,随分层面的增多充填体单轴抗压强度逐渐减小。添加纤维充填体在达到峰值荷载后仍具有一定承载能力,呈现“裂而不碎”的特征。通过对比聚丙烯腈纤维、玻璃纤维、聚丙烯腈纤维三种纤维,添加聚丙烯腈纤维更有利于充填力学性能的改善。

关键词：纤维分层充填体单轴抗压强度破坏模式充填力学性能

Effect of polyethylene glycol on the crystallization,rheology and foamability of poly(lactic acid)containing in situ generated polyamide 6 nanofibrils

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Frontiers of Chemical Science and Engineering 2023年第12期17卷 2074-2087页

作者： Yuhui Qiao Qian Li Amirjalal Jalali Dongsheng Yu xichan He Xiaofeng wang Jing Jiang Zhiyu Min Department of Materials Science and Engineering Luoyang Institute of Science and TechnologyLuoyang 471023China Henan Province International Joint Laboratory of Materials for Solar Energy Conversion and Lithium Sodium Based Battery Luoyang Institute of Science and TechnologyLuoyang 471023China National Center for International Research of Micro-Nano Molding Technology Zhengzhou 450001China Microcellular Plastics Manufacturing Laboratory Department of Mechanical and Industrial EngineeringUniversity of TorontoToronto M5S 3G8Canada School of Mechanical and Power Engineering Zhengzhou UniversityZhengzhou 450001China

In this study,the rheological properties,crystallization and foaming behavior of poly(lactic acid)with polyamide 6 nanofibrils were examined with polyethylene glycol as a *** 6 particles were deformed into nanofibrils during *** the 10%polyamide 6 case,polyethylene glycol addition reduced the polyamide 6 fibril diameter from 365.53 to 254.63 nm,owing to the smaller polyamide 6 particle size and enhanced interface *** experiments revealed that the viscosity and storage modulus of the composites were increased,which was associated with the three-dimensional entangled network of polyamide 6 *** presence of higher aspect ratio polyamide 6 nanofibrils substantially enhanced the melt strength of the *** isothermal crystallization kinetics results suggested that the polyamide 6 nanofibrils and polyethylene glycol had a synergistic effect on accelerating poly(lactic acid)*** the polyethylene glycol,the crystallization half-time reduced from 103.6 to 62.2 *** foaming results indicated that owing to higher cell nucleation efficiency,the existence of polyamide 6 nanofibrils led to a higher cell density and lower expansion ***,the poly(lactic acid)/polyamide 6 foams exhibited a higher cell density and expansion ratio than that of the foams without polyethylene glycol.

关键词： poly(lactic acid) foaming microfibrillation rheological property crystallization

Isolation and Identification of Capillarin from Artemisia Ordosica Kraschen

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Chinese Journal of Structural Chemistry 2005年第6期24卷 637-640页

作者： ZHAODong-Bao JIANGYan-Feng xichan-Juan LIUXiu-Hua wangHan-Qing KeyLaboratory.forNaturalMedicineofGansuProvince LanzhouInstituteofChemicalPhysicsTheChineseAcademyofSciencesLanzhou730000China DepartmentofChemistry TsinghuaUniversityBeijing100084China CollegeofChemistryandChemicalEngineering HenanUniversityKaifeng475001China

Capillarin was isolated from Artemisia Ordosica Kraschen and characterized by IR, 1H-NMR, 13C-NMR, 1H-1HCOSY, HMQC, HMBC and EIMS, and its crystal structure was determined by single-crystal X-ray diffraction analysis with the following data: triclinic, space group P1, Z = 2, a = 7.226(6), b = 7.297(6), c = 11.042(8) ?, α = 74.695(12), β = 78.479(12), γ = 62.063(10)°, V = 494.2(6) ?3, Mr = 198.21, Dc = 1.332 g/cm3, F(000) = 208, μ = 0.089 mm-1, S = 1.023, (?/σ)max = 0.000, the final R = 0.0408 and wR = 0.1110. The largest peak and deepest hole on the final difference Fourier map are 0.219 and –0.161 e/?3, respectively. The bond lengths and bond angles of the molecule are also given.

关键词： capillarin Artemisia Ordosica Kraschen single-crystal X-ray diffraction crystal structure

Quality of information disclosure, property rights, and bank loans: A bank heterogeneity perspective

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China Journal of Accounting Research 2019年第1期12卷 63-92页

作者： xichan Chen Wanli Li Shiyang Hu Xing Liu School of Economics and Business Administration Chongqing University

Using the context of the financial reform and the development of the non-state sector in China in the past decade, we examine the roles that the quality of information disclosure and property rights play in the allocation of different types of bank credit. We find that foreign banks and policy banks exercise ‘‘financial discrimination," and that local commercial banks, large state- owned commercial banks, national joint-stock banks, local city commercial banks, and rural commercial banks not only exercise financial discrimination but also provide significant ‘‘financial support" to non-state-owned enterprises by providing more lending opportunities and larger loans. However, when enterprises commit information disclosure violations, the local commercial banks, national joint-stock banks, local city commercial banks, and rural commercial banks reverse their credit decisions and begin to exercise financial dis- crimination against non-state-owned enterprises. At the same time, large stateowned commercial banks continue to provide financial support to non-state-owned enterprises. We also find that the quality of the information disclosed by enterprises has a moderating effect rather than an intermediary effect on the relationship between property rights and bank loans. Overall, the results of this paper shine new light on the market-oriented reform of the banking industry, and provide new empirical evidence for the presence of financial discrimination in the supply of bank credit. Our findings also have practical implications for solving the financing difficulties of non-state-owned enterprises.

关键词： Quality of information disclosure Property rights Bank loans PSM

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智能汽车自动紧急控制策略

同济大学学报（自然科学版） 2015年第11期43卷 1735-1742页

作者：李霖朱西产同济大学智能型新能源汽车协同创新中心上海201804

结合驾驶员在紧急工况下的驾驶行为以及不同避撞方式的避撞效能,对以自动紧急制动系统(Autonomous Emergency Braking,AEB)为代表的控制策略进行分析,发现当前的紧急制动控制策略并不能很好地适应驾驶员行为和满足避撞效能的需要.为此,... 详细信息

结合驾驶员在紧急工况下的驾驶行为以及不同避撞方式的避撞效能,对以自动紧急制动系统(Autonomous Emergency Braking,AEB)为代表的控制策略进行分析,发现当前的紧急制动控制策略并不能很好地适应驾驶员行为和满足避撞效能的需要.为此,提出了一种融合制动控制和转向控制的自动紧急控制(Autonomous Emergency Control,AEC)策略.在该策略中驾驶员始终在环,系统通过集成驾驶员模型、车辆模型和道路环境模型信息判断驾驶员的行为是否正确,并将控制输入与驾驶员输入叠加在一起作为车辆的输入对驾驶员不当驾驶行为进行纠正.

关键词：自动紧急控制智能汽车主动安全先进驾驶辅助系统控制策略

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紧急变道工况鲁棒性车辆轨迹跟踪策略

同济大学学报（自然科学版） 2017年第11期45卷 1659-1663页

作者：刘瑞朱西产李霖同济大学汽车学院上海201804 同济大学智能型新能源汽车协同创新中心上海201804

提出一种基于凸多面体方法的鲁棒性静态反馈紧急工况轨迹跟踪策略.使用侧向位移误差和车辆横摆角误差建立车辆轨迹跟踪模型.针对车辆紧急避让中车辆动态特性高度非线性的问题,使用凸多面体方法建立车辆轨迹跟踪的鲁棒性控制策略.通过Mat... 详细信息

提出一种基于凸多面体方法的鲁棒性静态反馈紧急工况轨迹跟踪策略.使用侧向位移误差和车辆横摆角误差建立车辆轨迹跟踪模型.针对车辆紧急避让中车辆动态特性高度非线性的问题,使用凸多面体方法建立车辆轨迹跟踪的鲁棒性控制策略.通过Matlab和Carsim软件的联合仿真表明,本文的车辆轨迹跟踪策略具有较为良好的性能和鲁棒性.

关键词：轨迹跟踪鲁棒控制凸多面体线性矩阵不等式

Study on Assessment Model of Potential Risk in Car Following Scenario

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Journal of Mechanics Engineering and Automation 2019年第6期9卷 185-187页

作者： Haozhou Wei Zhixiong Ma xichan Zhu Jingwei He School of Automotive Studies Tongji University4800 Cao’an HighwayShanghai 201804P.R.China

Car following is the most common driving scenario,and rear-end collisions in car following scenario are the most common ***(time to collision)is widely employed as the risk indicator in existing rear-end collision warning systems,however,assessment model using only TTC may ignore some high-risk ***,the concept of potential risk in car following scenario is proposed,and the driver’s maximum brake response time to avoid collision is defined as TM(time margin),which is the basis of the assessment model in this *** hundred and thirty-nine(139)dangerous car following cases from China-FOT(Field Operation Test)naturalistic driving study database are extracted in reference from detection criteria on dangerous cases,of which TM at the braking moment of preceding vehicle is calculated,thus dangerous domains of two risk levels are determined by the distribution of TM.A potential risk warning system is also designed based on the assessment model,in order to further reduce rear-end collisions in combination with rear-end collision warning system.

关键词： Risk assessment ADAS naturalistic driving study car following.