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智能电动机保护器的电磁辐射定量评估方法研究

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电机与控制学报 2017年第6期21卷 34-43页

作者：赵靖英周思诺高佳雄河北工业大学电气工程学院天津300130

针对电路复杂程度不断增加、信号处理速度不断提高的智能电动机保护器的电磁辐射日益严重问题,提出一种智能电动机保护器的电磁辐射定量评估方法。采用电路图绘制软件与仿真软件相结合的方式对典型智能电动机保护器PCB布局进行了仿真建... 详细信息

针对电路复杂程度不断增加、信号处理速度不断提高的智能电动机保护器的电磁辐射日益严重问题,提出一种智能电动机保护器的电磁辐射定量评估方法。采用电路图绘制软件与仿真软件相结合的方式对典型智能电动机保护器PCB布局进行了仿真建模,完成了电流、电场强度和磁场强度等参量的定量评估,直观呈现了电磁辐射的分布情况,并进行了实验设计、测试和验证。此外,研究了关键线路的线宽对典型智能电动机保护器电磁辐射特性的影响。结果表明:提出的仿真和实验方法对复杂结构的智能电动机保护器的电磁辐射定量评估具有一定的有效性和可行性;根据使用环境适当改变线宽可以不同程度地减小智能电动机保护器的电场强度和电磁强度,为产品设计提供参考。

关键词：智能电动机保护器电磁辐射仿真分析 PCB布局定量评估

Unraveling brain aging through the lens of oral microbiota

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Neural Regeneration Research 2025年第7期20卷 1930-1943页

作者： Qinchao Hu si Wang Weiqi Zhang jing Qu Guang-Hui Liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Hospital of Stomatology Guanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders Xuanwu HospitalCapital Medical UniversityBeijingChina Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijingChina CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijingChina University of Chinese Academy of Sciences BeijingChina Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijingChina Aging Biomarker Consortium BeijingChina State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Beijing Institute for Stem Cell and Regenerative Medicine BeijingChina

The oral cavity is a complex physiological community encompassing a wide range of *** of oral microbiota can lead to various oral infectious diseases,such as periodontitis and tooth decay,and even affect systemic health,including brain aging and neurodegenerative *** studies have highlighted how oral microbes might be involved in brain aging and neurodegeneration,indicating potential avenues for intervention *** this review,we summarize clinical evidence demonstrating a link between oral microbes/oral infectious diseases and brain aging/neurodegenerative diseases,and dissect potential mechanisms by which oral microbes contribute to brain aging and *** also highlight advances in therapeutic development grounded in the realm of oral microbes,with the goal of advancing brain health and promoting healthy aging.

关键词： Alzheimer's disease brain aging multiple sclerosis neurodegeneration neurodegenerative diseases oral microbiota Parkinson's disease periodontitis bacteria Porphyromonas gingivalis

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盗伐林木罪实证研究

江苏警官学院学报 2016年第4期31卷 53-59页

作者：晋海赵思静河海大学法学院河海大学

对550件盗伐林木案件实证研究结果表明,盗伐林木案件多发生于经济落后、森林资源丰富的地区;被告人多为农民、文化程度低,多为个人犯罪,主要犯罪动机为谋财、认罪态度普遍较好,但上诉被告人对林业司法鉴定信服率低;案件审判质量高,平均... 详细信息

对550件盗伐林木案件实证研究结果表明,盗伐林木案件多发生于经济落后、森林资源丰富的地区;被告人多为农民、文化程度低,多为个人犯罪,主要犯罪动机为谋财、认罪态度普遍较好,但上诉被告人对林业司法鉴定信服率低;案件审判质量高,平均惩罚力度较低,刑罚辅助措施适用较少;司法实践中将盗伐枯死木认定为盗伐林木罪。我国应当将"枯死木"、"盗伐"和"森林"等概念通过司法解释予以明确,降低非法运输、收购盗伐林木罪的起点,在司法实践中推广非刑罚措施的适用和合理的适用罚金刑。针对盗伐林木案件高发地区重点防治能够更好地保护森林资源。

关键词：盗伐林木罪环境犯罪实证研究

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城市小区绿地入渗试验研究

水电能源科学 2021年第2期39卷 51-55页

作者：郭文颢程伍群赵静思河北省保定水文水资源勘测局河北保定071000 河北农业大学城乡建设学院河北保定071000

对裸地、草坪等城市绿地进行入渗试验,得到土壤含水率、土壤容重、土壤入渗率等入渗试验参数,分析了前期降雨对绿地土壤含水率的影响,获得了试验期间裸地、草坪不同土层土壤含水率与前期影响雨量的线性关系,以及不同容重条件下裸地土壤... 详细信息

对裸地、草坪等城市绿地进行入渗试验,得到土壤含水率、土壤容重、土壤入渗率等入渗试验参数,分析了前期降雨对绿地土壤含水率的影响,获得了试验期间裸地、草坪不同土层土壤含水率与前期影响雨量的线性关系,以及不同容重条件下裸地土壤的入渗率变化规律。试验获得了不同绿地类型初始入渗率、稳定入渗率、平均入渗率、累计入渗量等特征参数,研究了裸地、草坪入渗率与入渗历时的相关关系,分析了影响绿地入渗能力的主要因素。结果表明,土壤下渗过程中形成土壤水的比重相对于形成土壤孔隙重力水的比重小,裸地、草坪的土壤入渗速率主要与土壤容重有关,即与土壤压实度、土壤孔隙等因素有关,与土壤含水率和前期影响雨量的关系不大。

关键词：海绵城市绿地入渗土壤含水率入渗率影响因素

Repetitive traumatic brain injury–induced complement C1–related inflammation impairs long-term hippocampal neurogenesis

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Neural Regeneration Research 2025年第3期20卷 821-835页

作者： jing Wang Bing Zhang Lanfang Li Xiaomei Tang Jinyu Zeng Yige Song Chao Xu Kai zhao Guoqiang Liu Youming Lu Xinyan Li Kai Shu Department of Neurosurgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Department of Neurosurgery Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalThird Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Pathophysiology School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Institute for Brain Research Wuhan Center of Brain ScienceHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Department of Graduate Student Chongqing Medical UniversityChongqingChina Department of Basic Medicine School of Medical ScienceHubei University for NationalitiesEnshiHubei ProvinceChina Department of Anatomy School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

Repetitive traumatic brain injury impacts adult neurogenesis in the hippocampal dentate gyrus,leading to long-term cognitive ***,the mechanism underlying this neurogenesis impairment remains *** this study,we established a male mouse model of repetitive traumatic brain injury and performed long-term evaluation of neurogenesis of the hippocampal dentate gyrus after repetitive traumatic brain *** results showed that repetitive traumatic brain injury inhibited neural stem cell proliferation and development,delayed neuronal maturation,and reduced the complexity of neuronal dendrites and *** with repetitive traumatic brain injuryalso showed deficits in spatial memory ***,following repetitive traumatic brain injury,neuroinflammation was enhanced in the neurogenesis microenvironment where C1q levels were increased,C1q binding protein levels were decreased,and canonical Wnt/β-catenin signaling was *** inhibitor of C1 reversed the long-term impairment of neurogenesis induced by repetitive traumatic brain injury and improved neurological *** findings suggest that repetitive traumatic brain injury–induced C1-related inflammation impairs long-term neurogenesis in the dentate gyrus and contributes to spatial memory retrieval dysfunction.

关键词： complement C1 dendrite dentate gyrus hippocampus neural stem cell neurogenesis neuroinflammation neurological function neuron traumatic brain injury

Human neural stem cell-derived extracellular vesicles protect against ischemic stroke by activating the PI3K/AKT/mTOR pathway

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Neural Regeneration Research 2025年第11期20卷 3245-3258页

作者： Jiayi Wang Mengke zhao Dong Fu Meina Wang Chao Han Zhongyue Lv Liang Wang jing Liu Stem Cell Clinical Research Center The First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning ProvinceChina Dalian Innovation Institute of Stem Cell and Precision Medicine DalianLiaoning ProvinceChina Institute(College)of Integrative Medicine Dalian Medical UniversityDalianLiaoning ProvinceChina

Human neural stem cell-derived extracellular vesicles exhibit analogous functions to their parental cells,and can thus be used as substitutes for stem cells in stem cell therapy,thereby mitigating the risks of stem cell therapy and advancing the frontiers of stem cell-derived *** lays a foundation for the development of potentially potent new treatment modalities for ischemic ***,the precise mechanisms underlying the efficacy and safety of human neural stem cell-derived extracellular vesicles remain unclear,presenting challenges for clinical *** promote the translation of therapy based on human neural stem cell-derived extracellular vesicles from the bench to the bedside,we conducted a comprehensive preclinical study to evaluate the efficacy and safety of human neural stem cell-derived extracellular vesicles in the treatment of ischemic *** found that administration of human neural stem cell-derived extracellular vesicles to an ischemic stroke rat model reduced the volume of cerebral infarction and promoted functional recovery by alleviating neuronal *** human neural stem cell-derived extracellular vesicles reduced neuronal apoptosis by enhancing phosphorylation of phosphoinositide 3-kinase,mammalian target of rapamycin,and protein kinase B,and these effects were reversed by treatment with a phosphoinositide 3-kinase *** findings suggest that human neural stem cell-derived extracellular vesicles play a neuroprotective role in ischemic stroke through activation of phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin signaling ***,we showed that human neural stem cell-derived extracellular vesicles have a good in vivo safety ***,human neural stem cell-derived extracellular vesicles are a promising potential agent for the treatment of ischemic stroke.

关键词： behavior exosome extracellular vesicles ischemic stroke mammalian target of rapamycin(mTOR) middle cerebral artery occlusion neural stem cells neuronal apoptosis phosphoinositide 3-kinase(PI3K) protein kinase B(AKT)

Leader-follower: Human-centered intention-guided controller for novel SuperLimb with application to load-carrying scenarios

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Science China Technological Sciences 2025年第1期 325-338页

作者： Qinghua ZHANG Xianglong LI Hongwei jing Kerui SUN Yuancheng LI sikai zhao Lele LI Haotian JU Ziqi WANG Rui WU Tianjiao ZHENG Jie zhao Yanhe ZHU The State Key Laboratory of Robotics and System Harbin Institute of Technology The Learning Algorithms and Systems Laboratory School of Engineeringécole Polytechnique Fédérale de Lausanne

Supernumerary robotic arms(SuperLimb) are a new type of wearable robot that works closely with humans as a third hand to augment human operation capability. Accurate conveyance of wearers' intentions, allocation of roles, and humancentered interaction considerations are the key points in the process of human–SuperLimb collaboration. This paper proposes a human-centered intention-guided leader–follower controller that relies on the dynamic modeling of SuperLimb with application to load-carrying scenarios. The proposed leader–follower controller takes the human as the leader and the SuperLimb as the follower, achieving effective information communication, autonomous coordination, and good force compliance between SuperLimb, humans, and the environment under human safety assurance. First, the human–SuperLimb dynamic system is modeled to achieve force interaction with the environment and wearer. Second, to achieve the precise intention extraction of humans, pose data from five visual odometry sensors are fused to capture the human state, the generalized position, the velocity of hands, and the surface electromyography signals from two myoelectric bracelets sensors are processed to recognize the natural hand gestures during load-carrying scenarios by a designed Swin transformer network. Then, based on the real-time distance detection between human and mechanical limbs, the security assurance and force-compliant interaction of the human–SuperLimb system are realized. Finally, the human hand muscle intention recognition, human–robot safety strategy verification,and comparative load-carrying experiments with and without the proposed method are conducted on the SuperLimb *** showed that the task parameters are well estimated to produce more reasonable planning trajectories, and SuperLimb could well understand the wearer's intentions to switch different SuperLimb actions. The proposed sensor-based human–robot communication framework motivates future studies of o

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西医临床医学专业学员的中医学基础教学思考

成都中医药大学学报（教育科学版） 2016年第1期18卷 11-11,14页

作者：修丽娟赵婧施俊岳小强上海长征医院中医科上海200003

本文分析并探讨了西医临床学员的中医教学过程中存在的一些问题,主要包括缺乏针对西医临床医学专业学员的中医教材;学员学习中医的学习动机不明确;教员授课方式单一。并针对存在的问题提出了改进的相应措施,以期进一步增强教学的针对性... 详细信息

本文分析并探讨了西医临床学员的中医教学过程中存在的一些问题,主要包括缺乏针对西医临床医学专业学员的中医教材;学员学习中医的学习动机不明确;教员授课方式单一。并针对存在的问题提出了改进的相应措施,以期进一步增强教学的针对性,提高教学效果。

关键词：中医教学问题西医

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动态分块隔行扫描算法设计与实现

成都信息工程学院学报 2014年第6期29卷 630-634页

作者：赵司井林宏刚成都信息工程学院信息安全工程学院四川成都610225

为满足屏幕图像传输中低CPU使用率,低带宽占用率的需求,设计并实现了一种动态分块隔行扫描算法。该算法比较相邻两帧图像,找出所有图像变化坐标并根据变化像素点的坐标得到面积最小的不重叠矩形区域的集合,压缩并发送矩形区域集合包含... 详细信息

为满足屏幕图像传输中低CPU使用率,低带宽占用率的需求,设计并实现了一种动态分块隔行扫描算法。该算法比较相邻两帧图像,找出所有图像变化坐标并根据变化像素点的坐标得到面积最小的不重叠矩形区域的集合,压缩并发送矩形区域集合包含的图像数据。实验结果表明,在图像变化较小时,该算法的CPU使用率和带宽占用率明显优于固定分块隔行扫描算法,有效减小传输的数据量,提高图像传输的性能。

关键词：图像传输固定分块隔行扫描动态分块