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Investigating connectional characteristics of Motor Cortex network

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Journal of Biomedical Science and Engineering 2009年第1期2卷 30-35页

作者： Dong-Mei Hao ming-ai li School of Electronic Information and Control Engineering Beijing University of Technology School of life Science and Bioengineering.

To understand the connectivity of cerebral cor-tex, especially the spatial and temporal pattern of movement, functional magnetic resonance imaging (fMRI) during subjects performing finger key presses was used to extract functional networks and then investigated their character-istics. Motor cortex networks were constructed with activation areas obtained with statistical analysis as vertexes and correlation coefficients of fMRI time series as linking strength. The equivalent non-motor cortex networks were constructed with certain distance rules. The graphic and dynamical measures of motor cor-tex networks and non-motor cortex networks were calculated, which shows the motor cortex networks are more compact, having higher sta-tistical independence and integration than the non-motor cortex networks. It indicates the motor cortex networks are more appropriate for information diffusion.

关键词： Motor Cortex Network Connectivity Correlation Coefficient Functional Magnetic Resonance Imaging (fMRI) Activation Area

要素替代及回弹效应视角下中国钢铁行业能源消费研究

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软科学 2017年第7期31卷 6-10页

作者：艾明晔李呈祥哈尔滨工程大学经济管理学院哈尔滨150001

基于中国1980~2013年钢铁行业数据,利用超越对数成本函数构建要素成本份额方程,运用动态最小二乘法对模型进行修正,利用似不相关回归对钢铁行业生产要素间的替代关系进行测度,并通过引入价格的非对称性来研究回弹效应。结果表明:钢铁行... 详细信息

基于中国1980~2013年钢铁行业数据,利用超越对数成本函数构建要素成本份额方程,运用动态最小二乘法对模型进行修正,利用似不相关回归对钢铁行业生产要素间的替代关系进行测度,并通过引入价格的非对称性来研究回弹效应。结果表明:钢铁行业的能源和资本自价格弹性均为负;资本和能源的绝对替代弹性和相对替代弹性均为正。能源对资本的绝对替代弹性大于资本对能源的绝对替代弹性,但资本对能源的相对替代弹性自2000年以后逐渐占优于能源对资本的相对替代弹性;钢铁行业的回弹效应高达95.85%,由能源效率提高而节约的能源基本上被回弹效应所抵消。

关键词：钢铁行业超越对数成本函数替代弹性回弹效应

基于多个并行CMAC神经网络的强化学习方法

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系统仿真学报 2008年第24期20卷 6683-6685,6690页

作者：李明爱焦利芳郝冬梅乔俊飞北京工业大学电子信息与控制工程学院北京100022

为解决标准Q学习算法收敛速度慢的问题,提出一种基于多个并行小脑模型(Cerebellar Model Articulation Controller:CMAC)神经网络的强化学习方法。该方法通过对输入状态变量进行分割,在不改变状态分辨率的前提下,降低每个状态变量的量... 详细信息

为解决标准Q学习算法收敛速度慢的问题,提出一种基于多个并行小脑模型(Cerebellar Model Articulation Controller:CMAC)神经网络的强化学习方法。该方法通过对输入状态变量进行分割,在不改变状态分辨率的前提下,降低每个状态变量的量化级数,有效减少CMAC的存储空间,将之与Q学习方法相结合,其输出用于逼近状态变量的Q值,从而提高了Q学习方法的学习速度和控制精度,并实现了连续状态的泛化。将该方法用于直线倒立摆的平衡控制中,仿真结果表明了其正确性和有效性。

关键词：强化学习小脑模型神经网络收敛性倒立摆

Is it possible to foot reflexology for infants with sensorineural hearing loss?

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World Journal of Clinical Cases 2025年第2期13卷 1-4页

作者： Min ai Hang-Hang Zhang Jun-Bang Feng Chuan-ming li Wen-Jing Wang Meng-Die Hu Department of Anesthesiology Nanan District People's Hospital of ChongqingChongqing 400060China Department of Breast and Thyroid Surgery Chongqing Bishan District Maternal and Child Health Care HospitalChongqing 402760China Department of Medical Imaging Chongqing University Central HospitalChongqing 400014China

Foot reflexology is a non-invasive and safe complementary therapy that works by massaging the reflex zones of the feet and exerts systemic or whole-body regulation through meridian nerve *** therapy is commonly used in the treatment of various conditions such as autism and Parkinson's ***,there is limited reporting on the use of foot reflexology therapy for infants with sensorineural hearing loss(SNHL).Currently,there is no definitive conclusion on how foot reflexology therapy can influence *** editorial holds some guiding significance regarding this clinical *** aim is to present physiological evidence of how foot reflexology therapy can impact infants with SNHL,thereby enhancing clinician’s awareness of foot reflexology in treating infants with SNHL.

关键词： Foot reflexology Sensorineural Hearing Loss Future perspectives limitations Neural conduction

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太阳池盐水溶液的折射率

太阳能学报 1987年第1期8卷 95-97页

作者：叶晓明宋爱国李申生北京师范学院物理系

本文根据实验测定的数据,给出了太阳池中盐水溶液的浓度与折射率之间的关系。它可用于计算太阳辐射在池内的分布,并提供了一种测定太阳池浓度分布的新方法

关键词：盐水溶液太阳池

Investigating Connectional Characteristics of Motor Cortex Network

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Multilevel analysis of the central-peripheral-target organ pathway:contributing to recovery after peripheral nerve injury

Journal of Biomedical Science and Engineering 2009年第1期

作者： Dong-Mei Hao ming-ai li

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Neural Regeneration Research 2025年第10期20卷 2807-2822页

作者： Xizi Song Ruixin li Xiaolei Chu Qi li Ruihua li Qingwen li Kai-Yu Tong Xiaosong Gu Dong ming Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Haihe Laboratory of Brain-Machine Interface and Human-Machine Fusion TianjinChina Department of Rehabilitation Tianjin University Tianjin HospitalTianjinChina Department of Hand Microsurgery Tianjin University Tianjin HospitalTianjinChina School of Exercise and Health Tianjin University of SportTianjinChina Department of Biomedical Engineering the Chinese University of Hong KongHong Kong Special Administrative RegionChina

Peripheral nerve injury is a common neurological condition that often leads to severe functional limitations and *** on the pathogenesis of peripheral nerve injury has focused on pathological changes at individual injury sites,neglecting multilevel pathological analysis of the overall nervous system and target *** has led to restrictions on current therapeutic *** this paper,we first summarize the potential mechanisms of peripheral nerve injury from a holistic perspective,covering the central nervous system,peripheral nervous system,and target *** peripheral nerve injury,the cortical plasticity of the brain is altered due to damage to and regeneration of peripheral nerves;changes such as neuronal apoptosis and axonal demyelination occur in the spinal *** nerve will undergo axonal regeneration,activation of Schwann cells,inflammatory response,and vascular system regeneration at the injury *** damage to target organs can occur,including skeletal muscle atrophy and sensory receptor *** then provide a brief review of the research advances in therapeutic approaches to peripheral nerve *** main current treatments are conducted passively and include physical factor rehabilitation,pharmacological treatments,cell-based therapies,and physical ***,most treatments only partially address the problem and cannot complete the systematic recovery of the entire central nervous system-peripheral nervous system-target organ ***,we should further explore multilevel treatment options that produce effective,long-lasting results,perhaps requiring a combination of passive(traditional)and active(novel)treatment methods to stimulate rehabilitation at the central-peripheral-target organ levels to achieve better functional recovery.

关键词： central nervous system central peripheral target organ multilevel pathological analysis nerve regeneration peripheral nerve injury peripheral nervous system target organs therapeutic approach

Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： Qiang liu Xiang li Shen Du ming Gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

Changes in Osmolality Modulate VGPCs in Trigeminai Ganglion Neurons

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Changes in Osmolality Modulate VGPCs in Trigeminai Ganglion ...