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Energy Engineering 2024年第4期121卷 973-986页

作者： Hongsheng Su Lixia Dong xiaoying yu Kai Liu School of Automation and Electrical Engineering Lanzhou Jiaotong UniversityLanzhou730070China

Time based maintenance(TBM)and condition based maintenance(CBM)are widely applied in many large wind farms to optimize the maintenance issues of wind turbine gearboxes,however,these maintenance strategies do not take into account environmental benefits during full life cycle such as carbon emissions ***,this article proposes a carbon emissions computing model for preventive maintenance activities of wind turbine gearboxes to solve the *** on the change of the gearbox state during operation and the influence of external random factors on the gearbox state,a stochastic differential equation model(SDE)and corresponding carbon emission model are established,wherein SDE is applied to model the evolution of the device state,whereas carbon emission is used to implement carbon emissions *** simulation results indicate that the proposed preventive maintenance cannot ensure reliable operation of wind turbine gearboxes but reduce carbon emissions during their *** with TBM,CBM minimizes unit carbon emissions without influencing reliable operation,making it an effective maintenance method.

关键词： Stochastic differential equation(SDE) condition-based maintenance(CBM) carbon emissions

The Design of Intelligent Wastebin Based on AT89S52

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Journal of Information Hiding and Privacy Protection 2021年第2期3卷 61-68页

作者： Juan Guo xiaoying yu Beihai Campus of Guilin University of Electronic Technology Beihai536000China

Mainly introduces intelligent classification trash can be dedicated to solving indoor household garbage *** trash can is based on AT89S52 single-chip microcomputer as the main control *** single-chip microcomputer realizes the intelligent classification of garbage by controlling the voice module,mechanical drive module,and infrared detection *** use of voice control technology and infrared detection technology makes the trash can have voice control and overflow alarm *** design has the advantages of simple and intelligent operation,simple structure,stable performance,low investment,etc.,which can further effectively isolate people and garbage,reduce human infection with bacteria,and is a feasible solution for classification at the source of garbage.

关键词： Garbage classification AT89S52 single-chip microcomputer voice control overflow alarm

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基于多方法证据融合的轨道电路故障诊断

铁道学报 2021年第2期43卷 86-94页

作者：于晓英董煜董昱兰州交通大学自动化与电气工程学院甘肃兰州730070 兰州工业学院电气工程学院甘肃兰州730050

针对采用单一方法进行轨道电路故障诊断时存在的局限性及诊断精度偏低的缺陷,提出一种基于灰色关联分析、模糊综合评判和反向传播BP神经网络三种方法证据融合的诊断策略。分别应用每种方法对轨道电路故障进行初步故障诊断,每个诊断输出... 详细信息

针对采用单一方法进行轨道电路故障诊断时存在的局限性及诊断精度偏低的缺陷,提出一种基于灰色关联分析、模糊综合评判和反向传播BP神经网络三种方法证据融合的诊断策略。分别应用每种方法对轨道电路故障进行初步故障诊断,每个诊断输出构造三个证据的基本概率赋值BPA;确定权值并重构证据BPA;按照证据理论合成规则融合重构证据并给出轨道电路故障诊断结论。诊断实例结果表明,基于多方法证据融合的轨道电路故障诊断方法能够克服单一故障诊断方法的不足,有效地提高了故障诊断的准确度。

关键词：轨道电路故障诊断证据理论 BPA 可靠度信任度

Distribution characteristics of iodine in humic acid-high underground water in Inner Mongolia and their relations to IDD disease

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Chinese Science Bulletin 1999年第S2期44卷 85-86页

作者： yu xiaoying State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

THE concentrations of iodine in humic acid-high underground water are not low, but the IDD disease isprevailing in some areas and no such disease is reported in some other areas. In order to explore the causes of disease and the factors affecting the concentrations of I in underground water, the author collected51 water samples from the Amengbayingmaodao Farm, Langshan Town, Linghe City of Bameng, ShibaTown of Wuyuan County, Qingshan Town of Wulatiehou Prefecture, and Zhijiliang Village in the suburbsof Hohhot City in the central and western part of Inner Mongolia for investigation. The analytical resultsshow that the water samples were relatively alkaline （pH=7.91 on average）. The average concentrationsof cations vary in the order of Na+>Ca2+> Mg2+>K+ while those of anions follow the decreasing

关键词： iodine humic acid distribution characteristics.

内蒙高腐殖酸地下水中碘的分布特征与IDD病的关系

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环境科学 2000年第3期21卷 56-59页

作者：余孝颖中国科学院地球化学研究所环境地球化学国家重点开放实验室贵阳550002

为探讨碘在高腐植酸地下水中的分布特征 ,研究内蒙古河套平原地区 51份水样 .分析结果显示 ,水质偏碱 (平均值 p H=7.91 ) ,水中腐植酸和 COD含量均高 ,地下水类型属于 HCO3- Na和 HCO3- Cl- Na型 .在这种高还原型盐水环境中水碘平均浓... 详细信息

为探讨碘在高腐植酸地下水中的分布特征 ,研究内蒙古河套平原地区 51份水样 .分析结果显示 ,水质偏碱 (平均值 p H=7.91 ) ,水中腐植酸和 COD含量均高 ,地下水类型属于 HCO3- Na和 HCO3- Cl- Na型 .在这种高还原型盐水环境中水碘平均浓度达到 430 μg/L,超过了水碘安全浓度范围的上限 ( 5～ 2 0 0 μg/L) .相关分析结果显示 ,水碘浓度与其它因素的相关顺序是 :COD>荧光强度 >电导率 >HCO- 3 >Cl- >Na+>p H>As>井深 .当地地下水中碘的分布呈现出碘浓度随腐植酸含量和盐渍化程度增加而增加的趋势 .由于这些因素的综合作用 ,当地没有发生高碘型碘缺乏病 ( IDD)的大面积流行 .

关键词：碘浓度腐植酸碘缺乏病地下水碘分布

Enhancing the Stability of High-Voltage Lithium-Ion Battery Using Sulfur-containing Electrolyte Additives

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Enhancing the Stability of High-Voltage Lithium-Ion Battery ...

Distribution of uranium and thorium in Irtysh River and the upriver wastewater from a rare metal mine impact on it

中国化学会第十九届全国化学热力学和热分析学术会议

作者： xiaoying yu Qi Wang Department of Chemistry Zhejiang University

The influence of two sulfur-containing electrolyte additives,prop-1-ene-1,3-sultone(PES) and 1,4-bultane sultone(BS) on the cyclic stability of LiNiCoMnO(NMC111) cathode and graphite anode have been simultaneously evaluated via combination of theoretical calculation,and charge/discharge test,cyclic voltammetry(CV) and linear sweep voltammetry LSV),scanning electron microscopy(SEM),and X-ray photoelectron spectroscopy(XPS).The DFT calculation predicts that PES and BS could be oxidized on NMC111 electrode and be reduced on graphite electrode prior to the baseline electrolyte ethylene carbonate(EC) and ethyl methyl carbonate(EMC),the result is also further confirmed by CV and *** charge-discharge test shows that with the addition of 3 vol.% BS and 2 wt.% PES into NMC111/Li cell between 3 V-4.6 V ***/Li,the capacity retention was significantly increased from 69% to 86.9% and 85.1% *** improvement of cyclic stability of NMC111/Li cell could be ascribed to the participation of PES and BS in the formation of a thin and uniform film on the NCM111 surface,which can be verified by SEM and *** to the SEM,the additive-containing NMC111 electrode after 200 cycles shows smooth surface and stable *** also confirmed that the S-containing SEI film have been formed on the electrode,which effectively suppress the structure degradation of NMC111 electrode and the continuous electrolyte ***,according to the chargedischarge test on the graphite/Li,BS and PES-containing cells show more stable cycle efficiency on graphite anode after 50 *** conclusion,both of PES and BS can form a film on the NMC111 electrode,this film can effectively suppress the subsequent decomposition of baseline electrolyte and further structure degradation of NMC111 *** and BS also show good performance in graphite anode,which means that the sulfur-containing electrolyte additives PES and BS have promising application prospect in high working

关键词： Lithium ion battery High-voltage Sulfur-containing electrolyte additive Prop-1-ene-1,3-sultone(PES) 1,4-Bultane sultone(BS)

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Chinese Journal Of Geochemistry 2006年第B8期25卷 43-44页

作者： Shehong LI Baoshan ZHENG Jianming ZHU xiaoying yu State Key Lab. of Environ. Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China

Analysis of the Current Situation of Stigma Among Elderly Hemodialysis Patients and its Influencing Factors

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Journal of Clinical and Nursing Research 2024年第2期8卷 92-97页

作者： Tingting He Heng Zhang yu Ai Juan Hu xiaoying yu Huan Yang Nephrology Department The Third Hospital of MianyangSichuan Mental Health CenterMianyang 621000Sichuan ProvinceChina

Objective:To understand the current situation of stigma among elderly hemodialysis patients and to analyze its influencing ***:Convenience sampling was used to select 242 elderly patients undergoing hemodialysis in one of the two tertiary hospitals in Mianyang *** survey was carried out from December 2022 to March 2023,with the Basic Information Questionnaire,the Social Influence Scale,and the Collaborative Social Support *** influencing factors were analyzed by correlation analysis,univariate analysis,and multiple linear ***:The average stigma score among elderly hemodialysis patients was 72.94±9.58,and the influencing factors of stigma among elderly hemodialysis patients were determined to be social support and economic status(P<0.05).Conclusion:The occurrence of stigma among elderly hemodialysis patients was at a moderate to high level,and the influencing factors were mainly economic status and social *** reduce the occurrence of stigma in elderly hemodialysis patients,appropriate economic support from families and social support from medical personnel are needed.

关键词： Stigma Hemodialysis Influencing factors

气候变化下长三角城市群基础设施脆弱性评估及空间分析

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同济大学学报（自然科学版） 2020年第12期48卷 1836-1844页

作者：施建刚俞晓莹同济大学经济与管理学院上海200092

城市基础设施是城市应对气候变化的关键环节。为了探究气候变化下城市基础设施系统的脆弱性及其空间分布特征,将脆弱性三要素理论与空间分析方法相结合,构建出气候变化下城市基础设施脆弱性的空间分析框架,并以长三角城市群各地级市为... 详细信息

城市基础设施是城市应对气候变化的关键环节。为了探究气候变化下城市基础设施系统的脆弱性及其空间分布特征,将脆弱性三要素理论与空间分析方法相结合,构建出气候变化下城市基础设施脆弱性的空间分析框架,并以长三角城市群各地级市为对象进行实证分析。通过脆弱性三要素的空间分布与空间相关性分析,发现三类要素的空间分布特征各异,脆弱性更多地取决于城市单元个体的行政级别、经济水平以及所属行政区域等因素,应将降低基础设施脆弱性的策略体系融入区域一体化政策中。

关键词：气候变化长三角城市群基础设施脆弱性空间分析

建国以来民主党派政治资源的配置特点及合理性研究

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四川大学学报（哲学社会科学版） 2012年第6期 73-81页

作者：于小英四川省社会主义学院四川成都610071

民主党派的政治资源主要包括制度性资源、功能性资源、组织性资源、社会性资源和政策性资源,其配置格局与民主党派在我国政治体系以及多党合作制度中的政治定位密切相关。建国以来民主党派政治资源的配置状况,随着中国共产党对民主党派... 详细信息

民主党派的政治资源主要包括制度性资源、功能性资源、组织性资源、社会性资源和政策性资源,其配置格局与民主党派在我国政治体系以及多党合作制度中的政治定位密切相关。建国以来民主党派政治资源的配置状况,随着中国共产党对民主党派的性质、地位和作用的认识不断深化以及对政党关系定位日渐清晰、准确而日趋合理,其参政领域和选配职数不断扩大。

关键词：民主党派政治资源配置特点合理性研究