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二氧化氮长期暴露与缺血性脑卒中患者死亡的关联及绿地暴露的效应修饰研究

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中华疾病控制杂志 2024年第5期28卷 554-560页

作者：赵珂胡杨张珮瑶刘超刘成榕师春香韦晶张丙银鹿子龙郭晓雷薛付忠贾贤杰芈静蚌埠医学院公共卫生学院流行病与卫生统计学教研室蚌埠233030 国家气象信息中心北京100081 马里兰大学大气与海洋科学系地球系统科学交叉研究中心美国大学公园市207424 山东省疾病预防控制中心慢性非传染性疾病防制所济南250014 山东大学齐鲁医学院公共卫生学院生物统计学系济南250012 国家健康医疗大数据研究院济南250003

目的探讨二氧化氮(nitrogen dioxide,NO2)长期暴露与缺血性脑卒中(ischemic stroke,IS)患者死亡风险之间的关联以及绿地暴露的效应修饰作用。方法选取山东省NO2浓度相对较高的西北地区4个区(县)2013―2019年的IS病例进行了纵向研究,... 详细信息

目的探讨二氧化氮(nitrogen dioxide,NO2)长期暴露与缺血性脑卒中(ischemic stroke,IS)患者死亡风险之间的关联以及绿地暴露的效应修饰作用。方法选取山东省NO2浓度相对较高的西北地区4个区(县)2013―2019年的IS病例进行了纵向研究,患者被随访至2019年12月31日或死亡日期。采用时间依赖Cox比例风险回归模型,评估NO2每增加1个IQR,IS患者因脑卒中死亡的HR及其95%CI。利用限制性三次立方样条函数拟合NO2长期暴露与IS患者死亡风险的暴露-反应关系。通过纳入NO2与归一化差异植被指数水平的交互项探究绿地暴露的效应修饰作用。最后进行了一系列敏感性分析,并基于不同性别、年龄组以及城乡进行了亚组分析。结果研究共包含46 252名IS患者,4个区(县)2013―2019年NO2的年平均浓度为(43.30±1.32)μg/m3。研究显示,NO2每升高1个IQR,IS患者死亡的HR值(95%CI)为1.22(1.15~1.29)。暴露-反应关系显示NO2长期暴露与IS患者的死亡风险呈非线性关系(P非线性<0.001)。交互作用结果发现NO2与绿地暴露之间存在交互作用(P非线性=0.005),且NO2对IS患者死亡的影响在绿地暴露程度较高的地区最弱(HR=1.19,95%CI:1.12~1.26,P<0.001)。不同性别、不同年龄组以及农村地区,同样发现NO2长期暴露与绿地暴露存在交互作用(均P<0.05)。结论 NO2长期暴露是IS患者死亡风险的危险因素,且绿地暴露可能缓解这种危害效应。

关键词：缺血性脑卒中二氧化氮绿地暴露纵向研究

Conformance control by a microgel in a multi-layered heterogeneous reservoir during CO_(2) enhanced oil recovery process

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Chinese Journal of Chemical Engineering 2022年第3期35卷 324-334页

作者： Zheyu liu Jian Zhang xianjie Li Chunming Xu Xin Chen Bo Zhang Guang Zhao Han Zhang Yiqiang Li State Key Laboratory of Heavy Oil Processing China University of Petroleum(Beijing)Beijing 102249China College of Petroleum Engineering China University of Petroleum(Beijing)Beijing 102249China China National Offshore Oil Corporation Research Institute CNOOCBeijing 100028China School of Petroleum Engineering China University of Petroleum(East China)QingdaoShandong 266580China

Injecting CO_(2)into the underground for oil displacement and shortage is an important technique for carbon capture,utilization and storage(CCUS).One of the main problems during the CO_(2)injection is the channeling plugging.Finding an effective method for the gas channeling plugging is a critical issue in the CO_(2)EOR process.In this work,an acid-resistance microgel named dispersed particle gel(DPG)was characterized and its stability was tested in the CO_(2)environment.The microgel size selection strategies for the homogeneous and heterogeneous reservoirs were respectively investigated using the single core flooding and three parallel core flooding experiments.Moreover,the comparison of microgel alternate CO_(2)(MAC)injection and water alternate CO_(2)(WAC)injection in the dual core flooding experiments were presented for the investigation of the role of microgel on the conformance control in CO_(2)flooding process.The results have shown that the microgel featured with ANH and CAN groups can keep its morphology after aging 7 days in the CO_(2)environment.Where,the small microgel with unobstructed migration and large microgel with good plugging efficiency for the high permeability zone were respectively featured with the higher recovery factor in homogeneous and heterogeneous conditions,which indicate they are preferred used for the oil displacement and conformance control.Compared to WAC injection,MAC injection had a higher incremental recovery factor of 12.4%.It suggests the acid-resistance microgel would be a good candidate for the conformance control during CO_(2)flooding process.

关键词： Carbon dioxide Microgels Enhanced oil recovery Conformance control Porous media

Hot-electron emission-driven energy recycling in transparent plasmonic electrode for organic solar cells

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InfoMat 2022年第3期4卷 121-130页

作者： Jing-De Chen Ling Li Chao-Chao Qin Hao Ren Yan-Qing Li Qing-Dong Ou Jia-Jia Guo Shi-Jie Zou Feng-Ming Xie xianjie liu Jian-Xin Tang Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Institute of Functional Nano&Soft Materials(FUNSOM)Soochow UniversitySuzhouJiangsuChina College of Physics and Materials Science Henan Normal UniversityXinxiangHenanChina School of Physics and Electronic Science Ministry of Education Nanophotonics&Advanced Instrument Engineering Research CenterEast China Normal UniversityShanghaiChina Department of Materials Science and Engineering Monash UniversityClaytonVictoriaAustralia Laboratory of Organic Electronics Department of Science and Technology(ITN)Linköping UniversityNorrköpingSweden Macao Institute of Materials Science and Engineering(MIMSE) Macao University of Science and TechnologyTaipaMacao SARChina

Plasmonic metal electrodes with subwavelength nanostructures are promising for enhancing light harvesting in photovoltaics.However,the nonradiative damping of surface plasmon polaritons(SPPs)during coupling with sunlight results in the conversion of the excited hot-electrons to heat,which limits the absorption of light and generation of photocurrent.Herein,an energy recycling strategy driven by hotelectron emission for recycling the SPP energy trapped in the plasmonic electrodes is proposed.A transparent silver-based plasmonic metal electrode(A-PME)with a periodic hexagonal nanopore array is constructed,which is combined with a luminescent organic emitter for radiative recombination of the injected hot-electrons.Owing to the suppressed SPP energy loss via broadband hot-electron emission,the A-PME achieves an optimized optical transmission with an average transmittance of over 80%from 380 to 1200 nm.Moreover,the indium-tin-oxide-free organic solar cells yield an enhanced light harvestingwith a power conversion efficiency of 16.1%.

关键词： energy recycling hot-electron emission organic solar cells plasmonic electrode surface plasmon polariton

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省煤器烟气旁路在330MW锅炉中的应用

锅炉制造 2024年第4期 23-24,29页

作者：马国智赵永国刘新坤石贤捷国家能源菏泽发电有限公司山东菏泽274032

在电网新能源发展的新形势下,燃煤发电机组参与深度调峰逐渐增多,为保证低负荷下烟气环保参数达标排放,燃煤发电机组均应实施不同路线的宽负荷脱硝改造,本文主要论述了某厂330MW机组进行省煤器烟气旁路改造后的运行情况。

关键词：深度调峰宽负荷脱硝烟气旁路

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尿液检测仪器分代理论模型构建及评价

现代检验医学杂志 2024年第2期39卷 175-180页

作者：陆志方刘大成孟宪杰金雅康陈玉文广州华商学院健康医学院广州511300 清华大学工业工程系北京100084 易源易贝(北京)科技有限公司北京100176

随着信息技术和智能化技术的进步,尿液检测仪器的智能化发展面临新的机遇。运用疾病控制论理论模型对临床尿液检测的业务流程、现行尿液检测仪器等进行分析,构建了尿液检测仪器的分代理论模型,有利于指引尿液检测仪器的智能化发展方向... 详细信息

随着信息技术和智能化技术的进步,尿液检测仪器的智能化发展面临新的机遇。运用疾病控制论理论模型对临床尿液检测的业务流程、现行尿液检测仪器等进行分析,构建了尿液检测仪器的分代理论模型,有利于指引尿液检测仪器的智能化发展方向。研究将尿液检测仪器分为一到四代产品,其中一代产品为医生操作阶段;二代产品为现阶段的检验师借助各种尿液分析仪阶段;三代产品进一步优化检测流程和智能化,无需检验师操作;四代产品则实现无人操作、无须采样。可见随着科技的发展,尿液分析的确变得更为简便,但是毕竟各种仪器都有其局限性,应把建立尿液分析仪器分代理论模型,运用在临床尿液检验中,既能提高尿液分析的效率又能提高其质量。

关键词：尿液分析仪分代模型疾病控制论

1990—2019年全球帕金森病疾病负担的APC分析

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中华全科医学 2024年第1期22卷 154-157页

作者：刘浩宇朋文佳芈静贾贤杰张玉媛蚌埠医科大学公共卫生学院安徽蚌埠233030 复旦大学公共卫生学院上海200433

目的分析1990—2019年全球帕金森病疾病负担的趋势,探讨年龄、时期、队列对帕金森病疾病负担发生风险的影响。方法通过收集分析1990—2019年全球帕金森病的疾病负担数据,采用Joinpoint回归模型分析全球帕金森病疾病负担的变化趋势,采... 详细信息

目的分析1990—2019年全球帕金森病疾病负担的趋势,探讨年龄、时期、队列对帕金森病疾病负担发生风险的影响。方法通过收集分析1990—2019年全球帕金森病的疾病负担数据,采用Joinpoint回归模型分析全球帕金森病疾病负担的变化趋势,采用年龄-时期-队列模型(APC模型)分析全球帕金森病疾病负担的发生风险的年龄、时期和队列效应。结果 1990—2019年全球的帕金森病的标化伤残调整寿命年(DALY)率总体无变化趋势(P>0.05),男性和女性的标化DALY率分别为上升和下降趋势,男性的标化DALY率从102.86/10万上升至106.44/10万,年平均上升速度为0.119%[平均年度变化百分比(AAPC)=0.119,t=2.559,P=0.010],女性的标化DALY率从61.61/10万下降至59.91/10万,年平均下降速度为0.097%(AAPC=-0.997,t=2.565,P=0.010)。APC模型结果显示,1990—2019年帕金森病DALY率风险的年龄效应为随年龄的增大先增加后降低(P<0.05);时期效应为随年份的增加而增大(P<0.05);队列效应为随出生队列的发展而降低(P<0.05)。结论 1990—2019年,全球人群帕金森病疾病负担总体无变化趋势,男性为上升趋势,女性为下降趋势,疾病负担发生风险随着年龄的增长先增长后下降,随着年份的增加而增加,随着出生队列的增长而降低,需加强老年人等特殊人群的预防工作,降低未来全球帕金森病的疾病负担。

关键词：帕金森病疾病负担年龄-时期-队列模型

A progressive approach to predict shot peening process parameters for forming integral panel of Al7050-T7451

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Chinese Journal of Aeronautics 2021年第5期34卷 617-627页

作者： Chuang liu Zhiyong ZHAO xianjie ZHANG Junbiao WANG School of Mechanical Engineering Northwestern Poly technical UniversityXi'an 710072China

In this paper,a progressive approach to predict the multiple shot peening process parameters for complex integral panel is proposed.Firstly,the invariable parameters in the forming process including shot size,mass flow,peening distance and peening angle are determined according to the empirical and machine type.Then,the optimal value of air pressure for the whole shot peening is selected by the experimental data.Finally,the feeding speed for every shot peening path is predicted by regression equation.The integral panel part with thickness from 2 mm to 5 mm and curvature radius from 3200 mm to 16000 mm is taken as a research object,and four experiments are conducted.In order to design specimens for acquiring the forming data,one experiment is conducted to compare the curvature radius of the plate and stringer-structural specimens,which were peened along the middle of the two stringers.The most striking finding of this experiment is that the outer shape error range is below 3.9%,so the plate specimens can be used in predicting feeding speed of the integral panel.The second experiment is performed and results show that when the coverage reaches the limit of 80%,the minimum feeding speed is 50 mm/s.By this feeding speed,the forming curvature radius of the specimens with different thickness from the third experiment is measured and compared with the research object,and the optimal air pressure is 0.15 MPa.Then,the plate specimens with thickness from 2 mm to 5 mm are peened in the fourth experiment,and the measured curvature radius data are used to calculate the feeding speed of different shot peening path by regressive analysis method.The algorithm is validated by forming a test part and the average deviation is 0.496 mm.It is shown that the approach can realize the forming of the integral panel precisely.

关键词： Curvature radius measure Integral panel Process parameters prediction Regressive analysis method Shot peening process

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旋转圆环槽中珠子的动力学性质研究

物理实验 2024年第2期44卷 52-57,63页

作者：黄欣雅王本阳王新顺潘玉寨刘一王先杰哈尔滨工业大学(威海)理学院山东威海264209 哈尔滨工业大学物理学院黑龙江哈尔滨150001

从非惯性系下的质心运动定理出发,建立空间转动坐标系,研究了珠子在绕竖直轴旋转的圆环槽中相对于环的运动所对应的理论,包括珠子相对于底部和侧壁的不同状态的运动方程,滚滑运动和纯滚动之间的转换条件,运动过程中的科里奥利力以及珠... 详细信息

从非惯性系下的质心运动定理出发,建立空间转动坐标系,研究了珠子在绕竖直轴旋转的圆环槽中相对于环的运动所对应的理论,包括珠子相对于底部和侧壁的不同状态的运动方程,滚滑运动和纯滚动之间的转换条件,运动过程中的科里奥利力以及珠子的平衡位置.实验中忽略空气阻力和非弹性碰撞对珠子运动的影响,研究了环转速、环中心到珠子球心的距离和滑动摩擦系数对珠子运动进程和平衡位置的影响.采用珠子位于环槽内部的简化模型,增加了珠子运动的自由度.

关键词：珠子动力学纯滚动滚滑运动科里奥利力

Strength Acquisition Mechanism of High Temperature Resistant Materials Prepared by Waste Architectural Ceramics

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China's Refractories 2022年第1期31卷 8-15页

作者： HUANG Zhaohui SHI Tengteng liu Yangai WU Xiaowen liu xianjie LIN Fankai LENG Gouqin ZHAN Huasheng LI Yanjing GAO Changhe Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes School of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China Beijing Jinyu Tongda Refractory Technology Co. Ltd.Beijing 100043China

In order to realize the large-scale and high-value utilization of waste architectural ceramics,high-temperature resistant materials based on waste architectural ceramics were prepared with sodium silicate as the binder,clay/bauxite and metakaolin/bauxite as coating materials,and the cold strength obtaining mechanism was explored.The phase composition,the microstructure and the mechanical properties of the high temperature resistant materials based on waste architectural ceramics were tested and analyzed.The results showed that when the heat treatment temperature was between 110-1000℃,the strength of the samples mainly came from the physical adhesion of sodium silicate and fine powder.When the temperature rose to 1100℃,the strength of the sample was improved since the internal low-melting-point components melted and promoted sintering.The addition of clay and bauxite can effectively enhance the flexural strength of the samples when the heat treatment temperature is 1000℃.When the heat treatment temperature rises from 900 to 1000℃,the flexural strength of the samples will be enhanced owing to the formation of silica alumina spinel and mullite from metakaolin.

关键词： waste architectural ceramics high value utilization high-temperature resistant materials flexural strength