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Solar Magnetism and the Activity Telescope at HSOS

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Chinese Journal of Astronomy and Astrophysics 2007年第2期7卷 281-288页

作者： Hong-Qi Zhang Dong-Guang Wang Yuan-Yong Deng Ke-Liang Hu Jiang-Tao Su Jia-Ben Lin Gang-Hua Lin Shi-Mo Yang wei-jun mao Ya-Nan Wang Qi-Qian Hu jun-Sun Xue Hai-Tian Lu Hou-Kun Ni Han-Liang Chen Xiao-jun Zhou Qing-Sheng Zhu Lu-jun Yuan YongZhu Huairou Solar Observing Station National Astronomical Observatories Chinese Academy of SciencesBeijing 100012 Space Technical Laboratory National Astronomical Observatories Chinese Academy of SciencesBeijing 100012 Nanjing Institute of Astronomical Optics and Technology National Astronomical ObservatoriesChinese Academy of Sciences Nanjing 210042

A new solar telescope system is described, which has been operating at Huairou Solar Observing Station （HSOS）, National Astronomical Observatories, Chinese Academy of Sciences （CAS）, since the end of 2005. This instrument, the Solar Magnetism and Activity Telescope （SMAT）, comprises two telescopes which respectively make measurements of full solar disk vector magnetic field and Ha observation. The core of the full solar disk video vector magnetograph is a birefringent filter with 0.1A bandpass, installed in the tele-centric optical system of the telescope. We present some preliminary observational results of the full solar disk vector magnetograms and Ha filtergrams obtained with this telescope system.

关键词： Sun activity - Sun telescope - Sun: magnetic fields

Speech Emotion Recognition Based on Linear Discriminant Analysis and Support Vector Machine Decision Tree

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Speech Emotion Recognition Based on Linear Discriminant Anal...

Effects of ultrasonic-assisted extraction on bioactive compounds,volatile flavors and antioxidant activities of vine tea water extracts

第37届中国控制会议

作者： jun-wei mao Yong He Zhen-Tao Liu School of Automation China University of Geosciences Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems

For speech emotion recognition,emotional feature set with high dimension may produce redundant features and influence the recognition *** solve this problem and obtain the optimal emotional feature subset of speech,a feature dimension reduction based on linear discriminant analysis is *** to the confusion degree between different basic emotions,an emotion recognition method based on support vector machine decision tree is *** on speaker-dependent speech emotion recognition using Chinese speech database from institute of automation of Chinese academy of sciences is performed and a speech emotion recognition system is presented,where standard feature sets of the INTERSPEECH and classic classifiers are used in comparative experiments *** results show that the proposal achieves 84.39%recognition accuracy on *** proposal,it would be fast and efficient to discriminate emotional states of diverse speakers from speech,and it would make it possible to realize the interaction between speaker and computer/robot in the future.

关键词： Emotion Recognition Speech Linear Discriminant Analysis Support Vector Machine Decision Tree

来源： cnki会议评论

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Traditional Medicine Research 2025年第1期10卷 73-81页

作者： Xiao-Long Zhou wei-Jin Jiang Ji Yu mao-jun Yao Yun-Tong Li Hunan Provincial Key Laboratory of Research Resource Mining and High-valued Utilization on Edible&Medicinal PlantCollege of Chemistry and Chemical EngineeringJishou UniversityJishou 416000China Hunan Gaoge Dairy Co. Ltd.Changsha 410000China

Background:Ampelopsis grossedentata,vine tea,which is the tea alternative beverages in *** vine tea processing,a large amount of broken tea is produced,which has low commercial ***:This study investigates the influence of different extraction methods(room temperature water extraction,boiling water extraction,ultrasonic-assisted room temperature water extraction,and ultrasonic-assisted boiling water extraction,referred to as room temperature water extraction(RE),boiling water extraction(BE),ultrasonic assistance at room temperature water extraction(URE),and ultrasonic assistance in boiling water extraction(UBE))on the yield,dihydromyricetin(DMY)content,free amino acid composition,volatile aroma components,and antioxidant properties of vine tea ***:A notable influence of extraction temperature on the yield of vine tea extracts(P<0.05),with BE yielding the highest at 43.13±0.26%,higher than that of RE(34.29±0.81%).Ultrasound-assisted extraction significantly increased the DMY content of the extracts(P<0.05),whereas DMY content in the RE extracts was 59.94±1.70%,that of URE reached 66.14±2.78%.Analysis revealed 17 amino acids,with L-serine and aspartic acid being the most abundant in the extracts,nevertheless ultrasound-assisted extraction reduced total free amino acid *** chromatography-mass spectrometry analysis demonstrated an increase in the diversity and quantity of compounds in the vine tea water extracts obtained through ultrasonic-assisted ***,69 and 68 volatile compounds were found in URE and UBE extracts,which were higher than the number found in RE and BE *** vitro,antioxidant activity assessments revealed varying antioxidant capacities among different extraction methods,with RE exhibiting the highest DPPH scavenging rate,URE leading in ABTS•+free radical scavenging,and BE demonstrating superior ferric ion reducing antioxidant ***:The findings suggest that extraction methods signi

关键词： vine tea dihydromyricetin ultrasonic-assisted extraction volatile aroma components

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基于群体智能的基础矩阵估计算法

系统仿真学报 2008年第22期20卷 6205-6208页

作者：徐玮张茂军王炜熊志辉国防科技大学信息系统与管理学院系统工程系信息集成与训练模拟教研室长沙410073

为了降低噪声和误匹配点对基础矩阵估计算法的影响,提出了一种基于群体智能的基础矩阵估计算法。该算法首先采用归一化8点法估计出基础矩阵的初值,再利用该基础矩阵计算每个匹配点的估计余差,对匹配点的估计余差进行基于群体智能的聚类... 详细信息

为了降低噪声和误匹配点对基础矩阵估计算法的影响,提出了一种基于群体智能的基础矩阵估计算法。该算法首先采用归一化8点法估计出基础矩阵的初值,再利用该基础矩阵计算每个匹配点的估计余差,对匹配点的估计余差进行基于群体智能的聚类,并剔除错误匹配点,最后,使用正确的匹配点重新计算基础矩阵。实验结果表明,该算法能有效的检测和删除误匹配点,提高基础矩阵估计的鲁棒性和精度。

关键词：基础矩阵群体智能聚类对极几何

Infiltration by monocytes of the central nervous system and its role in multiple sclerosis: reflections on therapeutic strategies

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Neural Regeneration Research 2025年第3期20卷 779-793页

作者： Guangyong Zhang Qing Yao Chubing Long Pengcheng Yi Jiali Song Luojia Wu wei Wan Xiuqin Rao Yue Lin Gen wei jun Ying Fuzhou Hua Department of Anesthesiology the Second Affiliated Hospital of Nanchang UniversityNanchangJiangxi ProvinceChina Key Laboratory of Anesthesiology of Jiangxi Province NanchangJiangxi ProvinceChina

Mononuclear macrophage infiltration in the central nervous system is a prominent feature of neuroinflammation. Recent studies on the pathogenesis and progression of multiple sclerosis have highlighted the multiple roles of mononuclear macrophages in the neuroinflammatory process. Monocytes play a significant role in neuroinflammation, and managing neuroinflammation by manipulating peripheral monocytes stands out as an effective strategy for the treatment of multiple sclerosis, leading to improved patient outcomes. This review outlines the steps involved in the entry of myeloid monocytes into the central nervous system that are targets for effective intervention: the activation of bone marrow hematopoiesis, migration of monocytes in the blood, and penetration of the blood–brain barrier by monocytes. Finally, we summarize the different monocyte subpopulations and their effects on the central nervous system based on phenotypic differences. As activated microglia resemble monocyte-derived macrophages, it is important to accurately identify the role of monocyte-derived macrophages in disease. Depending on the roles played by monocyte-derived macrophages at different stages of the disease, several of these processes can be interrupted to limit neuroinflammation and improve patient prognosis. Here, we discuss possible strategies to target monocytes in neurological diseases, focusing on three key aspects of monocyte infiltration into the central nervous system, to provide new ideas for the treatment of neurodegenerative diseases.

关键词： blood–brain barrier macrophages monocytes multiple sclerosis neuroinflammation review therapy

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广告与意识形态

武汉大学学报（人文科学版） 2003年第1期56卷 115-120页

作者：阮卫周茂君武汉大学新闻与传播学院湖北武汉430072

广告是为商品营销服务的 ,同时 ,它对人类社会的影响又不仅仅局限于商业领域。广告具有非常明显的意识形态特性 ,并由此对人们的观念世界产生潜移默化的作用。广告既对人类意识形态发挥积极作用 ,同时。

关键词：广告意识形态特性影响

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一种多视点全景图像自动生成的新方法

系统仿真学报 2009年第6期21卷 1641-1646页

作者：高辉王炜张茂军国防科学技术大学信息系统与管理学院系统工程系长沙410073

提出了一种多视点全景图像自动生成的新方法。该方法基于Pushbroom模型和透视投影模型,并采用稳定性修正处理,能有效避免摄像机帧速高低、移动平台速度变化、路面起伏以及平台抖动等因素造成的影响,生成平直光滑的多视点全景图像。实验... 详细信息

提出了一种多视点全景图像自动生成的新方法。该方法基于Pushbroom模型和透视投影模型,并采用稳定性修正处理,能有效避免摄像机帧速高低、移动平台速度变化、路面起伏以及平台抖动等因素造成的影响,生成平直光滑的多视点全景图像。实验表明,该方法对源素材(侧视视频或图片等)的采集设备以及采集环境要求较低,数据易于采集,便于多视点全景图像的广泛应用。

关键词：多视点全景图像 Pushbroom 透视投影自动生成

A coordinated planning strategy of energy storage allocation and line upgrading to increase photovoltaic consumption with lowest planning cost

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Science China Technological Sciences 2025年

作者： Bo ZHANG Yuqi JI Lu ZHANG wei TANG Xiaohui ZHANG Liang WANG Haoran DING Hanchen mao College of Information and Electrical Engineering China Agricultural University State Grid Heilongjiang Electric Power Research Institute State Grid Heilongjiang Electric Power Company Limited School of Electrical and Information Engineering Zhengzhou University of Light Industry

Random integration of massive distributed photovoltaic (PV) generation poses serious challenges to distribution networks. Voltage violations, line overloads, increased peak–valley differences, and power-flow reversals can occur at different locations, times, and severities. Traditional planning methods such as energy storage (ES) allocation and upgrading of lines may result in poor economics and low equipment utilization. This study proposes a distribution-network planning strategy that coordinates three planning mechanisms:ES allocation to substations and to feeders, and line upgrading. The proposed strategy achieved the lowest annual cost, considering the distribution network problems at different locations, times, and severities. A net load curve description method was first proposed considering economic planning and the uncertain distribution of loads and PVs. Second, a multistage optimization model for ES allocation and line upgrading was established based on the net load curves. Finally, an improved IEEE33 node system was used in the case study. The planning results show that the proposed coordinated planning strategy can address the problems caused by the random integration of massive distributed PVs, improve equipment utilization, and obtain the lowest total annual planning cost.

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Asymmetric interfacial engineering regulated charge distribution on Ru/Ni-N-C sites for efficient hydrogen evolution reaction in alkaline and seawater electrolytes

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Science China Chemistry 2025年

作者： Rui Yu Xi Cao Chengyang Zhu Qingqing Chen Ziyi Yan Binbin Jiang junjie mao Xianwen wei Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes College of Chemistry and Materials ScienceAnhui Normal University Anhui Provincial Key Laboratory of Advanced Catalysis and Energy Materials School of Chemistry and Chemical Engineering Anqing Normal University School of Chemistry and Chemical Engineering Anhui University of Technology

Developing highly efficient and cost-effective electrocatalysts for hydrogen evolution reaction（HER） is grandly challenging in alkaline and alkaline seawater electrolytes. Herein, the asymmetric interfacial active sites with Ru nanoparticles and Ni single atoms in Ru/Ni-N-C were designed through a solvothermal-pyrolysis process. Constructing highly asymmetric interfacial active sites with a strong electron delocalization effect significantly improves HER kinetics. As expected, Ru/Ni-N-C requires low overpotentials with around 20 mV at 10 mA cm-2and robust durability over 48 h in alkaline and alkaline seawater *** at 200 mA cm-2, the overpotentials are close to 100 mV in both above electrolytes for Ru/Ni-N-C. Density function theory calculation results suggest that the asymmetric interface between Ru nanoparticle and Ni-N-C could accelerate the dissociation of water molecules and modulate the hydrogen species, consequently improving the HER performances. This work opens a unique approach for constructing advanced materials for energy conversion.

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