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High Voltage 2024年第1期9卷 105-116页

作者： Zhaoyang Kang Fuqiang Ren Hongru Zhang Jingjing yang Kaining Hou Qingquan Li Dongxin He hongshun Liu Yongzhi Zhao Huaxin Wen Shandong Provincial Key Laboratory of UHV Transmission Technology and Equipment School of Electrical EngineeringShandong UniversityJinanChina Shandong Electrical Engineering&Equipment Group Co.Ltd JinanChina SDEE Hitachi High-voltage Switchgear Co. LtdJinanChina

Basin-type insulator often has small cracks due to stress *** current method cannot accurately reflect the stress condition of the insulator to find the stress concentration *** solve these problems,a method for detecting two-dimensional plane stress(δ_(1) andδ_(2))within different depth ranges in a basin-type insulator is proposed based on critically refracted longitudinal(LCR)***,the acoustoelastic equation characterising the relationship between the variation of LCR wave propagation time and the plane stress was ***,the propagation characteristics of LCR wave in epoxy resin samples were ***,the stress distribution within different depth ranges of the insulator subjected to hydraulic load was measured using the proposed method,including direction(θ),δ_(1) andδ_(2).The results show that the magnitude of the stress alone cannot accurately characterise the stress *** with equal distances to the centre have similar stress magnitudes,but their directions are not the *** increasing depth,θremains essentially unchanged at the same location,whileδ1 andδ2 decrease,and the rate of decrease varies at different *** the measured and simulated data,the results showed that they were in good agreement,and the maximum errors of stress value andθwere 0.69 MPa and 2.97°,respectively,which confirmed the feasibility and accuracy of the stress detection in the proposed method.

关键词： stress insulator wave

Hybrid Model of Power Transformer Fault Classification Using C-set and MFCM – MCSVM

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 672-685页

作者： Ali Abdo hongshun Liu Yousif Mahmoud Hongru Zhang Ying Sun Qingquan Li Jian Guo Shandong Provincial Key Laboratory of UHV Transmission Technology and Equipment School of Electrical EngineeringShandong UniversityJinan 250061China

This paper aims to increase the diagnosis accuracy of the fault classification of power transformers by introducing a new off-line hybrid model based on a combination subset of the et method(C-set)&modified fuzzy C-mean algorithm(MFCM)and the optimizable multiclass-SVM(MCSVM).The innovation in this paper is shown in terms of solving the predicaments of outliers,boundary proportion,and unequal data existing in both traditional and intelligence *** into consideration the closeness of dissolved gas analysis(DGA)data,the C-set method is implemented to subset the DGA data samples based on their type of faults within unrepeated ***,the MFCM is used for removing outliers from DGA samples by combining highly similar data for every subset within the same cluster to obtain the optimized training data(OTD)*** is also used to minimize dimensionality of DGA samples and the uncertainty of transformer condition *** that,the optimized MCSVM is trained by using the(OTD).The proposed model diagnosis accuracy is 93.3%.The obtained results indicate that our model significantly improves the fault identification accuracy in power transformers when compared with other conventional and intelligence models.

关键词： Combination subset of set(C-set)method modified fuzzy C-means(MFCM) optimizable multiclass-SVM(MCSVM) optimized training data(OTD)

THE EFFECT OF SUBSTITUTION Fe FOR Cu IN La1.85Sr0.15CuO4-δ POLYCRYSTALLINE SAMPLES

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低温物理学报 1993年第4期 278-283页

作者： yang hongshun Zhan Xiaonong Zu ChangfeiWang Keqin Cao Liezhao Chen ZhaojiaDepartment of Physics, University of Science and Technology of China, Hefei 230026

The resistivity, hall coefficient, DC susceptiblity and differential specific heats of La1.85Sr0.15Cu1-xFexO4-δpolycrystalline samples were measured. The superconducting transition temperature Tc, the superconducting volume fraction, the carrier concentration and the magnitude of the specific heat anomalies become lower and smaller rapidly with increasing Fe doping content. The metal behaviour at normal state is changed into semi-conductor behaviour by Fe doping. The experiment results indicate that perfectness of Cu-O plane in LaSrCuO system is significant for forming optimal superconducting phase and the magnetic ions act as pair breakers. The Fe ion doping at Cu site reduces greatly the electron density of states at Fermi level.

关键词： Fe CuO THE EFFECT OF SUBSTITUTION Fe FOR Cu IN La Sr

Two Photosensitive Dermatitis Outbreaks Caused by Cordierites frondosus—Chuxiong Yi Autonomous Prefecture,Yunnan Province,China,2023

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China CDC weekly 2024年第24期6卷 580-584页

作者： Jiaju Zhong hongshun Zhang Chengmin Yu Jipin Li Yizhe Zhang Jiaqi Liang Chengye Sun Qunmei Yao National Institute of Occupational Health and Poison Control Chinese Center for Disease Control and PreventionBeijingChina Department of Emergency Medicine The People’s Hospital of Chuxiong Yi Autonomous PrefectureChuxiong CityYunnan ProvinceChina

Summary What is already known about this topic?Cordierites frondosus(***)is a species of toxic mushroom known to induce symptoms of photosensitive *** is added by this report?In the months of May and June 2023,a total of four patients in Chuxiong Yi Autonomous Prefecture,Yunnan Province,were affected by *** poisoning,occurring over two distinct *** condition of two patients deteriorated after they were re-exposed to sunlight on the seventh day following the initial poisoning.

关键词： Prefecture poisoning breaks

Mushroom Poisoning Outbreaks—China,2023

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China CDC weekly 2024年第4期6卷 64-68,I0001-I0005页

作者： Haijiao Li Yizhe Zhang hongshun Zhang Jing Zhou Zuohong Chen Jiaqi Liang Yu Yin Qian He Shaofeng Jiang Yutao Zhang Yuan Yuan Nan Lang Bowen Cheng Jiaju Zhong Zhongfeng Li Chengye Sun National Institute of Occupational Health and Poison Control Chinese Center for Disease Control and PreventionBeijingChina College of Life Sciences Hunan Normal UniversityChangsha CityHunan ProvinceChina

What is already known about this topic?Mushroom poisoning poses a significant food safety concern in China,with a total of 196 species identified in poisoning incidents by the end of *** is added by this report?In 2023,the China CDC conducted an investigation into 505 cases of mushroom poisoning spanning 24 provincial-level administrative *** investigation resulted in 1,303 patients and 16 deaths,yielding a case fatality rate of 1.23%.A total of 97 mushrooms were identified as the cause of 6 distinct clinical disease types,with 12 species newly documented as poisonous mushrooms in *** are the implications for public health practice?Close collaboration among CDC staff,physicians,and mycologists remains crucial for the control and prevention of mushroom poisoning in the future.

关键词： prevention yielding poisoning

Possible Transition in D-Valine and L-Valine Single Crystal Samples

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Chinese Physics Letters 1995年第5期12卷 297-300页

作者： yang hongshun LOU Fengming WANG Wenqing SHENG Xiangrong ZHUANG Zhizhong SHI Lei CHEN Zhaojia Department of Physics University of Science and Technology of ChinaHefei 230026 Department of Technical Physics Peking UniversityBeijing 100871 The Center of Structure&Element Analysis University of Science and Technology of ChinaHefei 230026

The specific heats and temperature dependence of the x-ray powder diffractions for the D-valine and the L-valine single crystal samples have been *** is found that there is a specific heat jump at 272.0K for the D-dine samples but no jump at the same temperature for the L-dine *** lambda like transition means that the co-operative effect is involved in this *** is no crystal structure transition in the temperature range of 123-293K for the D-dine *** transition of the D-valine sample might be the possible D-L transition which is proposed by Abdus Salam.

关键词： transition. transition Transition

Food-Borne Poisoning Accident from Amanitin Toxin in Wild Mushrooms—Xingtai City,Hebei Province,China,2023

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China CDC weekly 2024年第3期6卷 56-59页

作者： Baopu Lv Liang Liu Hao Xiao Qingbing Meng Rui Zhang Yaqing An Yingli Jin Yu Ma Hengbo Gao Yongkai Li Qian He Yutao Zhang Changqing Liu Xiaoyan Luo Xiaomin Xu Fenshuang Zheng Yingping Tian hongshun Zhang Dongqi Yao Emergency Department The Second Hospital of Hebei Medical UniversityShijiazhuang CityHebei ProvinceChina National Institute of Occupational Health and Poison Control Chinese Centre for Disease Control and PreventionBeijingChina Hebei Provincial Center for Disease Control and Prevention Shijiazhuang CityHebei ProvinceChina Zhejiang Provincial Center for Disease Control and Prevention Hangzhou CityZhejiang ProvinceChina Emergency Department The Affiliated Hospital of Yunnan UniversityKunming CityYunnan ProvinceChina

What is already known about this topic?Fatal poisonings caused by wild mushrooms containing amanita toxins pose a significant threat in the southern regions of *** toxins primarily induce gastrointestinal symptoms initially,which are then followed by potentially life-threatening acute liver *** is added by this report?This report contributes to the existing knowledge on these cases of poisoning by documenting the second occurrences in Hebei Province and the first occurrences in Xingtai *** individuals reported consuming wild mushrooms from the same origin,and laboratory tests confirmed the presence ofα-amanitin in their blood *** are the implications for public health practice?This underscores the risk associated with the collection and consumption of amanita toxin-containing mushrooms in *** is important to note that the identification of toxic and non-toxic mushrooms should not solely rely on personal experience or appearance.

关键词： Hebei consuming initially

内抹调湿砂浆外墙吸放湿特性及对负荷影响分析

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湖南大学学报（自然科学版） 2024年第1期51卷 225-236页

作者：龚光彩王洪顺刘永超石星湖南大学土木工程学院湖南长沙410082

本文从建筑围护结构节能出发,以内抹WSE(木质纤维Wood fibre、海泡石Sepio⁃lite、膨胀珍珠岩Expanded perlite)基复合调湿保温砂浆外墙为研究对象,将其与内抹普通砂浆外墙对比,分析吸放湿特性及其对负荷的影响.研究使用COMSOL Multiphys... 详细信息

本文从建筑围护结构节能出发,以内抹WSE(木质纤维Wood fibre、海泡石Sepio⁃lite、膨胀珍珠岩Expanded perlite)基复合调湿保温砂浆外墙为研究对象,将其与内抹普通砂浆外墙对比,分析吸放湿特性及其对负荷的影响.研究使用COMSOL Multiphysics有限元软件的建筑材料热湿耦合模型,分析环境湿度变化与外墙之间的湿迁移变化,以及与外墙的传热传质.以夏热冬冷典型气候地区长沙为例,分析内抹WSE基复合调湿保温砂浆外墙的负荷及潜热负荷占比,同时选取夏热冬暖地区广州和寒冷地区北京对比分析外墙的全年能耗.研究发现,内抹WSE基复合调湿保温砂浆外墙的吸放湿速率远大于内抹普通砂浆的外墙,并能长时间保持高速的吸放湿状态,同时比内抹普通砂浆墙体节省22.31%~23.85%的全年负荷.墙体在吸湿过程中,温升与吸湿速率能力体现出一致性,表明墙体内表面湿迁移对温度有着重要影响,并且湿迁移越大对温度影响越大.墙体在放湿过程中,温度迅速下降是放湿速率快的表现.内抹WSE基复合调湿保温砂浆墙体具有优良的吸放湿特性和节能潜力,可用于建筑围护结构节能.

关键词：外墙建筑材料吸放湿特性湿度控制围护结构负荷

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压电效应调控硅碳复合材料锂离子输运行为研究

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中国科学：化学 2024年第3期54卷 385-395页

作者：赵宏顺李建斌任玉荣常州大学材料科学与工程学院常州213164 江苏省新能源汽车动力电池制造技术工程研究中心常州213164 江苏省高等学校优秀科技创新团队常州213164

硅碳合金(Si/C)因其超高的比容量和合适的工作电压,更容易满足未来新能源汽车和储能设备对于电池高能量密度的要求.但其实际应用却受制于导电性差、反应动力学缓慢和体积效应明显(最高可达300%)等缺点.本文巧妙地利用硅负极在充放电循... 详细信息

硅碳合金(Si/C)因其超高的比容量和合适的工作电压,更容易满足未来新能源汽车和储能设备对于电池高能量密度的要求.但其实际应用却受制于导电性差、反应动力学缓慢和体积效应明显(最高可达300%)等缺点.本文巧妙地利用硅负极在充放电循环中的“体积膨胀”特性构建了一种“序构”材料.通过在Si/C复合材料表面引入“主动参与、主动作为”的功能化压电修饰层钛酸铋钠(Bi_(0.5)Na_(0.5)TiO_(3),BNT),利用合金化反应产生的机械应力诱导压电材料产生局域电场,实现机械能转化为电能,来获得一定的功能性,更加有效地促进界面锂离子输运能力,同时缓解合金化反应引起的体积膨胀,从而维持良好的界面接触.协同效果驱动下的Si/C@CNTs@BNT复合电极材料在0.2 A g^(-1)电流密度下,循环200圈之后,依然可以保持911.2 m Ah g^(-1)的可逆比容量,容量保持率为90.74%.

关键词：锂离子电池硅碳负极压电效应应力调控

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公交场站基础信息查询系统的设计

城市公共交通 2024年第3期 34-37页

作者：巢洪顺杨范济南公共交通集团有限公司济南250000

随着社会经济的快速发展,我国城市化进程不断加快,公共交通服务面积逐年增加,公交线网覆盖面越来越广,公交场站分布范围及数量也随之不断增加,场站属性逐渐复杂化,场站基础信息更新不及时或信息缺失现象日益凸显。为解决上述问题,从济... 详细信息

随着社会经济的快速发展,我国城市化进程不断加快,公共交通服务面积逐年增加,公交线网覆盖面越来越广,公交场站分布范围及数量也随之不断增加,场站属性逐渐复杂化,场站基础信息更新不及时或信息缺失现象日益凸显。为解决上述问题,从济南公交实际使用需求出发,研究搭建公交场站基础信息查询系统,从系统需求分析、系统设计、系统实现效果等方面进行介绍,具有实际应用价值。

关键词：公交场站基础信息查询系统

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