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Changes in nerve microcirculation following peripheral nerve compression

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Neural Regeneration Research 2013年第11期8卷 1041-1047页

作者： yueming gao Changshui Weng Xinglin Wang Rehabilitation Medicine Center General Hospital of Chinese PLA Department of Rehabilitation Medicine South Building General Hospital of Chinese PLA

Following peripheral nerve compression, peripheral nerve microcirculation plays important roles in regulating the nerve microenvironment and neurotrophic substances, supplying blood and oxygen and maintaining neural conduction and axonal transport. This paper has retrospectively analyzed the articles published in the past 10 years that addressed the relationship between peripheral nerve compression and changes in intraneural microcirculation. In addition, we describe changes in different peripheral nerves, with the aim of providing help for further studies in peripheral nerve microcirculation and understanding its protective mechanism, and exploring new clinical methods for treating peripheral nerve compression from the perspective of neural microcirculation.

关键词： neural regeneration peripheral nerve injury peripheral nerve microcirculation nerve compression nerve blood flow sciatic nerve grants-supported paper neuroregeneration

A Comparative Study of the Electrodes Gels’Electrical Properties in the Measurement Issues of Intrabody Communication

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Journal of Beijing Institute of Technology 2022年第1期31卷 71-80页

作者： Fengjie Lin Ziliang Wei Jiejie Yang Yangrong Wen yueming gao Sio Hang Pun Mang I Vai Min Du College of Physics and Information Engineering Key Laboratory of Medical Instrumentation&Pharmaceutical Technology of Fujian ProvinceFuzhou UniversityFuzhou 350108China State Key Laboratory of Analog and Mixed-Signal VLSI University of MacaoTaipaMO 999078China

Intrabody communication(IBC)technology is becoming progressively more standard-ized due to its low power consumption and high security features incorporated into the third phys-ical layer of the IEEE 802.15.6 *** then,there are still many challenges in normalizing the measurement issues of IBC.A major concern that should not be overlooked is the electrodes in the IBC,especially the popular use of gel *** the channel measurements,gel electrodes are commonly employed to improve the signal-to-noise ratio and prevent electrodes from falling *** this paper,a comparative study of the electrical properties of gel was investigated during the measurement of human channel characteristics and to clarify the differences of ***,the basis of electrostatic field pole plate measurements and electromagnetic theory were introduced to interpretate how the relative permittivity and conductivity of different gels will influence the meas-urement *** the in vivo experiments with different gel or dry electrodes were performed to compare the differences induced by the *** results indicate that the influence of the gel on the human channel measurement is mainly concentrated below 400 kHz(the attenuation is re-duced by 16.7 dB on average),and the stability of the permittivity and conductivity of the gel has a direct impact on the stability of its measurement of the human *** result may provide a meaningful reference for the standardization of electrode usage in IBC.

关键词： intrabody communication channel characteristic measurement gel electrodes permit-tivity conductivity

Exploring the complex trade-offs and synergies of global ecosystem services

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Environmental Science and Ecotechnology 2024年第5期21卷 141-148页

作者： Jinnan Wang Wenjun Wu Meng Yang yueming gao Jiacheng Shao Weishan Yang Guoxia Ma Fang Yu Nan Yao Hongqiang Jiang State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation Chinese Academy of Environmental PlanningBeijing100041China The Center for Eco-Environmental Accounting Chinese Academy of Environmental PlanningBeijing100041China The Innovation Center for Eco-environment-Oriented Development Chinese Academy of Environmental PlanningBeijing100041China School of Environment Beijing Normal UniversityBeijing100875China College of Environmental&Resource Sciences Zhejiang UniversityHangzhou310058China College of Economics&Management Northwest A&F UniversityYangling712100China

The trade-off and synergy relationship of ecosystem services is an important topic in the current *** value of each service provided by the ecosystem is substantially affected by human activities,and conversely,its changes will also affect the relevant human *** to varying tradeoffs among ecosystem services and synergies between them that can either increase or decrease,it is difficult to optimize multiple ecosystem services simultaneously,making it a huge challenge for ecosystem *** study firstly develops a global Gross Ecosystem Product(GEP)accounting *** uses remote sensing data with a spatial resolution of 1 km to estimate the ecosystem services of forests,wetlands,grasslands,deserts,and farmlands in 179 major countries in *** results show that the range of global GEP values is USD 112e197 trillion,with an average value of USD 155 trillion(the constant price),and the ratio of GEP to gross domestic product(GDP)is *** tradeoffs and the synergies among different ecosystem services in each continent and income group have been further *** found a correspondence between the income levels and the synergy among ecosystem services within each *** specific ecosystem services,there are strong synergies between oxygen release,climate regulation,and carbon sequestration services.A trade-off relationship has been observed between flood regulation and other services,such as water conservation and soil retention services in low-income *** results will help clarify the roles and the feedback mechanisms between different stakeholders and provide a scientific basis for optimizing ecosystem management and implementing ecological compensation schemes to enhance human well-being.

关键词： Ecosystem services Biophysical quantity Monetary value Trade-off Synergy

Investigation and Comparison of Two Models in Galvanic Coupling Intra-body Communications

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China Communications 2010年第4期7卷 35-40页

作者： PUN Siohang gao yueming WONG Kuokkit MAK Pengun VAI Mangi DU min Department of Electrical and Electronics Engineering Faculty of Science and Technology Universi（y of Macao Macao China Key Laboratory of Medical Instrumentation ＆ Pharmaceutical Technology Fujian Province China Institute of Precision Instrument Fuzhou University Fuzhou China

Intra-body communication (IBC) is a new,emerging,short-range and human body based communication *** is a technique to network various devices on human body,by utilizing the conducting properties of human tissues,suitable for currently fast developing Body area network (BAN)/Body sensor network (BSN).IBC is believed to have advantages in power consumption,electromagnetic radiation,interference from external electromagnetic noise,security,and restriction in spectrum *** this article,the authors develop two models,which are analytical and empirical approaches,for comparing the performance and accuracy of IBC on a human *** in vivo experiment of five volunteers,both models basically match with the experimental result with equivalent circuit model superior than electromagnetic model in term of maximum error.

关键词： Intra-body Communication Analytical Model Empirical circuit model

Effect of swimming training on neural microcirculation in rats with sciatic nerve compression A study based on laser Doppler flowmetry

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Neural Regeneration Research 2010年第19期5卷 1510-1514页

作者： yueming gao Xinglin Wang Senyang Lang Lining Zhang Wei Suo Tianyu Jiang Jingping Fan Department of Physical Therapy General Hospital of Chinese PLA Beijing 100853 China

Microcirculation of the peripheral nerve is necessary for neural growth and regeneration. However, technical limitations have limited studies in this area. The few studies conducted have concerned active exercise effects on microcirculation of the peripheral nerve. Using an animal experiment, this study evaluated the effect of swimming training on microcirculation of injured peripheral nerve by laser Doppler flowmetry. The results showed that the blood vessel at the distal end of the peripheral nerve was the main blood supply for the nerve, and the internal blood supply for the nerve had strong compensatory ability. Swimming training promoted the functional recovery of rats with sciatic nerve injury and the regeneration of myelin sheath and blood vessels, but had no impact on neural blood flow.

关键词： sciatic neuropathy angiogenesis swimming autogenic training blood flow velocity laser Doppler flowrnetry

铁氧体磁芯磁场分布的优化及其对磁纳米热疗的影响

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中南大学学报（自然科学版） 2023年第8期54卷 3079-3089页

作者：汤云东陈泓霖高跃明福州大学物理与信息工程学院福建福州350108

以缠绕着载流线圈的铁氧体磁芯为基础,应用有限元方法分析载流线圈位置对磁场分布的影响,接着采用磁场不均匀性函数结合遗传算法对磁芯气隙内的磁场均匀度进行优化,优化后的磁芯磁场通过顺序耦合方式被进一步应用于磁热疗治疗温度分布分... 详细信息

以缠绕着载流线圈的铁氧体磁芯为基础,应用有限元方法分析载流线圈位置对磁场分布的影响,接着采用磁场不均匀性函数结合遗传算法对磁芯气隙内的磁场均匀度进行优化,优化后的磁芯磁场通过顺序耦合方式被进一步应用于磁热疗治疗温度分布分析,采用治疗期间肿瘤区域内的有效治疗温度对肿瘤体积的占比来评估磁热疗治疗效果。研究结果表明:线圈位于气隙两端所产生的磁场优于其位于左端所产生的磁场,与等效磁路分析结果基本一致。本文所提优化方法可使得气隙磁场均匀度显著提高,并使磁热疗肿瘤区域最高治疗温度达到临界值,显著提高治疗效果。

关键词：磁热疗磁场铁氧体有限元方法生物传热方程

植入式人体通信中电磁波在不同组织分界面上的传播特性研究

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电波科学学报 2017年第2期32卷 134-143页

作者：陈志英高跃明杜民福州大学电气工程与自动化学院福州350116 福建省医疗器械和医药技术重点实验室福州350116 厦门理工学院电气工程与自动化学院厦门361024 福州大学物理与信息工程学院福州350108 福建省生态产业绿色技术重点实验室武夷山354300

通过计算电磁波在不同人体组织分界面的入射情况,研究人体信道电磁波跨越不同组织分界面时的传播特性.文章首先利用电磁场边界条件推导均匀平面电磁波向单层与多层导电媒质入射时的反射系数、透射系数及电磁波表达式;然后以人体手臂为... 详细信息

通过计算电磁波在不同人体组织分界面的入射情况,研究人体信道电磁波跨越不同组织分界面时的传播特性.文章首先利用电磁场边界条件推导均匀平面电磁波向单层与多层导电媒质入射时的反射系数、透射系数及电磁波表达式;然后以人体手臂为研究对象,采用4阶Cole-Cole模型获取10 Hz^100GHz人体组织介电参数,计算向单层、多层组织入射时各个分界面上的最大入射角、反射系数、透射系数与平均能流密度,结果显示,垂直入射是电磁波透射多层人体组织的主要路径,皮肤与空气分界面的反射系数最大,频率小于1MHz或大于10GHz的电磁波能量比较难在人体内外传播,电磁波平均能流密度传播随频率呈带通特性,带宽及中心频率与器件植入位置有关等;最后采用COMSOL Multiphysics建立电磁波向3层人体组织垂直入射的有限元仿真模型,仿真结果与理论计算结果相比误差小于0.000 08,验证了理论推导与计算的正确性.

关键词：植入式人体通信组织分界面垂直入射反射系数平均能流密度

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植入式医学传感器体内通信的建模与分析

仪器仪表学报 2012年第12期33卷 2661-2666页

作者：高跃明潘少恒麦炳源韦孟宇杜民福州大学物理与信息工程学院福州350002 福州大学福建省医疗器械和医药技术重点实验室福州350002 澳门大学科技学院电机及电脑工程系澳门999078

研究植入式医学传感器体内通信的人体信道传输特性。采用有限元方法建立植入式医学传感器体内通信的准静态场模型,设计实验平台验证模型的正确性,计算出模型电导率分别为各向同性和各向异性时体内电信号沿轴向和径向传输的电位增益。结... 详细信息

研究植入式医学传感器体内通信的人体信道传输特性。采用有限元方法建立植入式医学传感器体内通信的准静态场模型,设计实验平台验证模型的正确性,计算出模型电导率分别为各向同性和各向异性时体内电信号沿轴向和径向传输的电位增益。结果表明,植入式医学传感器的体内通信信号在准静态场频段内沿轴向衰减明显,沿径向稳定传输;信号增益受频率变化的影响较小;当电导率为各向异性时信号增益明显大于各项同性的情况;并比较了体内通信对射频通信在信号增益上的优势。

关键词：植入式传感器体内通信建模增益各向异性

创新培训模式强化技能技术提高培训实效——乡村医生注册培训的实践

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浙江医学教育 2009年第2期8卷 26-28,5页

作者：高越明浙江医学高等专科学校浙江杭州310053 浙江省乡村医生培训学校浙江杭州310004

自2004年国务院颁布实施《乡村医生从业管理条例》以后,我国乡村医生的执业注册与培训走上了法治的轨道。根据《乡村医生从业管理条例》,浙江省在2006年至2007年完成了第一轮乡村医生注册培训。浙江省于2009年上半年开展的第二轮乡村医... 详细信息

自2004年国务院颁布实施《乡村医生从业管理条例》以后,我国乡村医生的执业注册与培训走上了法治的轨道。根据《乡村医生从业管理条例》,浙江省在2006年至2007年完成了第一轮乡村医生注册培训。浙江省于2009年上半年开展的第二轮乡村医生注册培训,以科学发展观为指导,遵循"强化技能技术,更新知识体系,注重分步提升,不以淘汰为主"的定位,在创新模式、提高实效等方面进行了积极探索。

关键词：乡村医生培训方案培训模式