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High Voltage 2023年第4期8卷 682-689页

作者： Jiawei Zhang Zifan Ye Li wang zelei Zhang Fan Xu Weichen Dang Takao Matsumoto Sombel Diaham Chatchai Putson School of Electrical Engineering Xi'an University of TechnologyXi'anShaanxiChina Universitéde Toulouse UPSINPTLAPLACE(Laboratoire Plasma et Conversion d'Energie)Toulouse Cedex 9France Materials Physics Laboratory Department of PhysicsFaculty of SciencePrince of Songkla University(PSU)SongkhlaThailand

The measurement of the surface charge on the insulating dielectrics is critical to estimate the insulation strength of electrical equipment in operation.Unavoidable interactions with the electromagnetic field,however,generally result in distortion measurement of active sensor.Thus,it is of great significance to investigate a passive sensor for monitoring the deposited charge.Here,a passive optical fibre electrostatic sensor is developed on the principle of Fabry–Perot interference to quantify the surface potential of the insulating dielectrics.The sensitivity of quantifying the electrostatic charge is explored in terms of the wavelength shift in the interference spectrum,and the linear correlation is 0.99.Meanwhile,the sensor can identify a negative quadratic trend with the increase of the surface roughness of the insulating dielectrics.The merits of the proposed sensor such as passive monitoring,bipolar electrostatic detection,and the excellent ability of antielectromagnetic interference are highlighted in the results.Hence,this sensor can serve as an effective tool to monitor the electrostatic charge in the fields of smart electrical equipment,fuel transportation,aerospace,integrate circuit etc.

关键词： electrostatic passive fibre

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预富集技术研究进展

化工矿物与加工 2023年第1期52卷 63-70+79页

作者：王泽雷昆明理工大学国土资源工程学院

预富集技术主要是根据矿石矿物与脉石矿物在某种特性上的差异，利用光电选、重选、磁选、浮选及化学选等工艺提高矿石矿物入选品位，预先抛弃部分脉石矿物，从而为后续分选作业创造有利条件。概述了预富集技术的研究现状，从光电选、重... 详细信息

预富集技术主要是根据矿石矿物与脉石矿物在某种特性上的差异，利用光电选、重选、磁选、浮选及化学选等工艺提高矿石矿物入选品位，预先抛弃部分脉石矿物，从而为后续分选作业创造有利条件。概述了预富集技术的研究现状，从光电选、重选、磁选、浮选、化学选以及联合工艺等方面介绍了预富集技术在选矿领域的研究及应用，分析了各种预富集技术的优缺点，并指出采用联合工艺进行预富集是实现低贫矿石和废石资源综合利用的重要技术手段。

关键词：低品位矿废石资源预富集技术光电选重选磁选浮选综合利用

The Minimum sum-cost for people flows division problem

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The Minimum sum-cost for people flows division problem

2012 International Conference on Power Electronics Engineering and Computer Technology(PEECT 2012)

作者： Lihong Gui Ying Yin Zelei Wang Tongquan Zhang Adult Education College Yunnan Radio and Television University Department of Mathematics Faculty of Science Kunming University of Science and Technology Kunming Municipal Bureau of Land and Resources School of Mathematics and Computer Science Yunnan Nationalities University

The Minimum sum-cost for people flows division problem consists of finding the minimum sum-cost for people flows division problem which satisd all of the constraints on edges in the network. We analyze its NP-Complete... 详细信息

关键词： The Minimum sum-cost for people flows division Problem NP-Completeness heuristic algorithm

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光电拣选设备研究与应用进展

化工矿物与加工 2023年第5期52卷 51-57+65页

作者：王泽雷昆明理工大学国土资源工程学院

随着矿产资源的高强度开采，矿石贫化加剧，对后续选矿作业带来了不利影响。光电拣选作为一种重要的预选技术，可提高矿石入选品位、减少环境污染、提高企业经济效益，具有广阔的应用前景。重点介绍了光电拣选设备组成及工作过程，简述... 详细信息

随着矿产资源的高强度开采，矿石贫化加剧，对后续选矿作业带来了不利影响。光电拣选作为一种重要的预选技术，可提高矿石入选品位、减少环境污染、提高企业经济效益，具有广阔的应用前景。重点介绍了光电拣选设备组成及工作过程，简述了国内外光电拣选设备的研究进展，总结了色选机、X射线辐射拣选机、放射性拣选机、近红外射线拣选机、微波加热拣选机等在选矿领域的应用现状，并指出三维(3D)扫描技术、多类型传感器组合应用技术、智能拣选大数据技术等在光电拣选中的应用以及光电拣选设备的智能化、高效化和精准化等是未来的重点研发方向。

关键词：光电拣选设备色选机 X射线辐射拣选机放射性拣选机近红外射线拣选机微波加热拣选机

Diagnostic Value of Neutrophil-Lymphocyte Ratio and Platelet-Lymphocyte Ratio in Patients with Severe COVID-19—7 PLADs,China,January 21–February 10,2020

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China CDC weekly 2022年第10期4卷 195-198,I0001页

作者： Yan Ma Dongshan Zhu Nannan Shi Lei Zhang Guangkun Chen Youwen Ge zelei Zhang Renbo Chen Sihong Liu Yipin Fan Huamin Zhang Yanping wang Department of Infectious Disease Prevention Institute of Basic Research in Clinical MedicineChina Academy of Chinese Medical SciencesBeijingChina Department of Epidemiology School of Public HealthCheeloo College of MedicineShandong UniversityJinanShandong ProvinceChina Jinan250012China Chinese Medicine Standardization Research Center Institute of Basic Research in Clinical MedicineChina Academy of Chinese Medical SciencesBeijingChina Institute of Information on Traditional Chinese Medicine China Academy of Chinese Medical SciencesBeijingChina Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijingChina.

Summary What is already known about this topic?Coronavirus disease 2019(COVID-19)causes symptoms ranging from mild to severe.Indicators for identifying severe COVID-19 infection have not been well identified,especially for young patients.What is added by this report?Both neutrophil-lymphocyte ratio(NLR)[area under curve(AUC):0.80;the odds ratios(OR)and 95%confidence intervals(95%CI):1.30(1.13–1.50)]and platelet-lymphocyte ratio(PLR)[AUC:0.87;OR(95%CI):1.05(1.01–1.09)]were determined to be indicators for recognition of patients with severe COVID-19 in young patients less than age 40.What are the implications for public health practice?NLR and PLR are useful indicators for identifying patients with severe COVID-19,especially in young patients less than age 40.

关键词： Lymphocyte Patients Platelet

多维度视角下社会组织政策的量化分析与优化研究

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郑州轻工业大学学报（社会科学版） 2024年第1期25卷 78-87页

作者：肖泽磊王烨罗来燕华中师范大学政治与国际关系学院湖北武汉430079 河北省人民代表大会常务委员会研究室河北石家庄050000

透过历史制度主义的视角对社会组织政策变迁的过程进行回顾和分析,有利于理顺社会组织的发展脉络与历史规律。基于此,本文从政策工具的研究视角,对改革开放以来国家层面的465份社会组织政策文本进行编码和量化分析,并结合政策要素与时... 详细信息

透过历史制度主义的视角对社会组织政策变迁的过程进行回顾和分析,有利于理顺社会组织的发展脉络与历史规律。基于此,本文从政策工具的研究视角,对改革开放以来国家层面的465份社会组织政策文本进行编码和量化分析,并结合政策要素与时间序列对社会组织政策变迁过程及各阶段的特征进行描述性统计,考察社会组织政策“反治理”现象,即规范性政策文种缺位、政策工具使用结构失衡、专门性和配套性政策不完善,以及新旧政策并行等,并在此基础上从协调政策结构、优化政策工具、均衡政策布局、加强顶层设计与基层指导四个方面提出相对应的针对性对策建议,以期为我国社会组织发展提供理论参考。

关键词：社会组织政策变迁政策工具政策文本

Gut microbiome,cognitive function and brain structure:a multi-omics integration analysis

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Translational Neurodegeneration 2022年第1期11卷 178-191页

作者： Xinxiu Liang Yuanqing Fu Wen-ting Cao Zhihong wang Ke Zhang Zengliang Jiang Xiaofang Jia Chun-ying Liu Hong-rou Lin Haili Zhong zelei Miao wanglong Gou Menglei Shuai Yujing Huang Shengdi Chen Bing Zhang Yu-ming Chen Ju-Sheng Zheng College of Life Sciences Zhejiang UniversityHangzhou 310058China School of Life Sciences Westlake University18 Shilongshan RdCloud TownHangzhou 310024China Guangdong Provincial Key Laboratory of Food Nutrition and HealthDepartment of Medical Statistics and EpidemiologySchool of Public HealthSun Yat-Sen UniversityGuangzhou 510080China Chinese Center for Disease Control and Prevention National Institute for Nutrition and HealthBeijing 100050China School of Public Health Hainan Medical UniversityHaikou 571199China Westlake Intelligent Biomarker Discovery Lab Westlake Laboratory of Life Sciences and BiomedicineHangzhou 310024China Department of Neurology and Institute of Neurology Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200025China Key Laboratory of Trace Element Nutrition National Health CommissionBeijing 100050China Institute of Basic Medical Sciences Westlake Institute for Advanced StudyHangzhou 310024China.

Background:Microbiome-gut-brain axis may be involved in the progression of age-related cognitive impairment and relevant brain structure changes,but evidence from large human cohorts is lacking.This study was aimed to investigate the associations of gut microbiome with cognitive impairment and brain structure based on multi-omics from three independent populations.Methods:We included 1430 participants from the Guangzhou Nutrition and Health Study(GNHS)with both gut microbiome and cognitive assessment data available as a discovery cohort,of whom 272 individuals provided fecal samples twice before cognitive assessment.We selected 208 individuals with baseline microbiome data for brain magnetic resonance imaging during the follow-up visit.Fecal 16S rRNA and shotgun metagenomic sequencing,tar-geted serum metabolomics,and cytokine measurements were performed in the GNHS.The validation analyses were conducted in an Alzheimer’s disease case-control study(replication study 1,n=90)and another community-based cohort(replication study 2,n=1300)with cross-sectional dataset.Results:We found protective associations of specific gut microbial genera(Odoribacter,Butyricimonas,and Bac-teroides)with cognitive impairment in both the discovery cohort and the replication study 1.Result of Bacteroides was further validated in the replication study 2.Odoribacter was positively associated with hippocampal volume(β,0.16;95%CI 0.06-0.26,P=0.002),which might be mediated by acetic acids.Increased intra-individual alterations in gut microbial composition were found in participants with cognitive impairment.We also identified several serum metabolites and inflammation-associated metagenomic species and pathways linked to impaired cognition.Conclusions:Our findings reveal that specific gut microbial features are closely associated with cognitive impair-ment and decreased hippocampal volume,which may play an important role in dementia development.

关键词： Gut microbiome Cognitive impairment Brain structure Metagenomics Microbiome-gut-brain axis Cohort

国内制酸尾气末端治理技术及其应用——在产教融合视角下,对《硫酸工业》教学内容改进的思考

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广东化工 2022年第13期49卷 210-212页

作者：王璐高泽磊秦茜叶新军甘肃有色冶金职业技术学院冶金与化学工程系甘肃金昌737100 金川集团股份有限公司甘肃金昌737100

课本中,符合硫酸工业可直接排放的“低浓度制酸尾气”,在新标准的颁布实施下,早已不合时宜。目前,各大硫酸生产企业在二氧化硫污染物减排方面的主流做法是增加末端治理技术,但在高职化工类专业核心课《化工工艺学》的《硫酸工业》章节... 详细信息

课本中,符合硫酸工业可直接排放的“低浓度制酸尾气”,在新标准的颁布实施下,早已不合时宜。目前,各大硫酸生产企业在二氧化硫污染物减排方面的主流做法是增加末端治理技术,但在高职化工类专业核心课《化工工艺学》的《硫酸工业》章节中并没有体现。本文介绍了硫酸工业目前普遍所采用的技术原理及特点,对比了在企业的应用情况、运行成本及环保性,为促进硫酸工业产教深度融合提供教学资料。

关键词：硫酸尾气末端治理技术应用产教融合

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AZ31镁合金化学成膜工艺及性能研究

铸造技术 2017年第9期38卷 2145-2147页

作者：苗景国王新颖张泽磊四川工程职业技术学院材料工程系四川德阳618000 四川省航空材料检测与模锻工艺技术工程实验室四川德阳618000

研究AZ31镁合金化学成膜工艺及配方,应用扫描电镜(SEM)、膜层测厚仪、粗糙度仪、结合力测试仪及盐雾试验箱等仪器对所制备出的膜层的表面和截面形貌、粗糙度、结合力、耐蚀性进行测试和分析。结果表明,在此工艺配方下所获得的膜层性能优... 详细信息

研究AZ31镁合金化学成膜工艺及配方,应用扫描电镜(SEM)、膜层测厚仪、粗糙度仪、结合力测试仪及盐雾试验箱等仪器对所制备出的膜层的表面和截面形貌、粗糙度、结合力、耐蚀性进行测试和分析。结果表明,在此工艺配方下所获得的膜层性能优良,表面光滑细腻,膜层比基体的耐蚀性有较大幅度提高,具有生产实际应用价值。

关键词： AZ31镁合金化学成膜电解液配方耐蚀性

Graphene/SiO_(2)纳米复合材料作为水基润滑添加剂的摩擦学性能

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材料研究学报 2023年第7期37卷 543-553页

作者：王伟解泽磊屈怡珅常文娟彭怡晴金杰王快社西安建筑科技大学冶金工程学院陕西710055 北京交通大学经济管理学院北京100044 北京交通大学机械与电子控制工程学院北京100044

以石墨烯和正硅酸乙酯为原料用溶胶-凝胶法制备了Graphene/SiO_(2)纳米复合材料,用球盘式摩擦磨损试验机评价其作为水基润滑添加剂在不同载荷和浓度下的摩擦学性能。用扫描电镜(SEM)、X射线光电子能谱(XPS)等手段表征了摩擦副的表面形... 详细信息

以石墨烯和正硅酸乙酯为原料用溶胶-凝胶法制备了Graphene/SiO_(2)纳米复合材料,用球盘式摩擦磨损试验机评价其作为水基润滑添加剂在不同载荷和浓度下的摩擦学性能。用扫描电镜(SEM)、X射线光电子能谱(XPS)等手段表征了摩擦副的表面形貌和元素特征。结果表明:在15N载荷工况下,Graphene/SiO_(2)纳米复合材料作为添加剂在超纯水中含量为0.2%(质量分数)时具有最佳的摩擦学性能,比超纯水的摩擦系数降低了17.9%,钢球磨损率降低了61.7%。基于磨损表面分析提出的润滑机制为:在摩擦过程中,Graphene/SiO_(2)纳米复合材料在磨损表面生成的物理吸附膜、Graphene的层状剪切作用以及SiO_(2)在磨损表面的修复作用和滚珠轴承作用,使超纯水的摩擦学性能提高。

关键词：复合材料石墨烯/二氧化硅复合材料摩擦性能润滑机制水基润滑剂