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鄂尔多斯盆地西南部早—中二叠世源—汇充填过程及构造—沉积格局

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天然气地球科学 2024年第1期35卷 41-58页

作者：虎建玲王琳霖陈琴黄道军刘磊张靖芪王志伟朱淑玥中国石油长庆油田分公司勘探开发研究院陕西西安710018 低渗透油气田勘探开发国家工程实验室陕西西安710018 中国石化石油勘探开发研究院北京100083 中国石油川庆钻探工程有限公司地质勘探开发研究院四川成都610051 成都理工大学沉积地质研究院四川成都610059 油气藏地质及开发工程国家重点实验室(成都理工大学) 四川成都610059

鄂尔多斯盆地上古生界是主要的含气层,但其西南部早—中二叠世不同物源体系及构造—沉积格局的争议制约了进一步的勘探与开发。基于鄂尔多斯盆地西南部下—中二叠统85件样品的主、微量和稀土元素测试结果及16件锆石分析测试数据,多方法... 详细信息

鄂尔多斯盆地上古生界是主要的含气层,但其西南部早—中二叠世不同物源体系及构造—沉积格局的争议制约了进一步的勘探与开发。基于鄂尔多斯盆地西南部下—中二叠统85件样品的主、微量和稀土元素测试结果及16件锆石分析测试数据,多方法综合分析鄂尔多斯盆地太原—石盒子期沉积物源及其控制下的充填过程。通过微量稀土元素物源背景分析,认为太原组大地构造背景以被动大陆边缘为主,山西组和石盒子组表现为主动大陆边缘和大陆岛弧沉积。太原组沉积时期物源体系单一,母岩成分复杂;到山西组、石盒子组沉积时期,存在多个物源体系,母岩成分趋于稳定。太原组样品的锆石U-Pb年龄主要分布在400~500 Ma之间,且呈单峰分布;山西组样品则大致可以分为3段:280~500 Ma、1824~1873 Ma和2440~2569 Ma;石盒子组样品的锆石U-Pb年龄介于254~2769.2 Ma之间,年龄区间大,且不同区域锆石年龄谱存在较大的差异。综合多种物源分析结果,认为研究区太原组物源主要来自北祁连,而北部中亚造山带的影响较为有限;山西组沉积时期,祁连构造带抬升加剧、供源增强,但低于同时期华北古老基底;石盒子组沉积期,华北克拉通古老基底供源持续增强,同时中亚造山带的影响逐渐增强并成为第二大物源,北秦岭、北祁连局部供源,研究区此时属于鄂尔多斯盆地南北源—汇系统交汇区。

关键词：碎屑锆石 U-Pb年龄物源分析鄂尔多斯盆地西南部早—中二叠世

昌吉地区梅毒流行病学调查及其社会危害性研究

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云南医药 2024年第3期45卷 90-93页

作者：孙亚琴张晨谢建玲昌吉州人民医院皮肤科新疆昌吉831100 昌吉市疾病与预防控制中心疾病控制科新疆昌吉831100

目的昌吉地区梅毒流行病学调查及其社会危害性研究。方法对2016年1月-2020年12月新疆昌吉州梅毒血清学试验阳性患者回顾性分析,实施梅毒流行病学调查。结果 2020年发病率22.2/10万较前一年有所降低,2016年1月-2020年12月年发病率呈现... 详细信息

目的昌吉地区梅毒流行病学调查及其社会危害性研究。方法对2016年1月-2020年12月新疆昌吉州梅毒血清学试验阳性患者回顾性分析,实施梅毒流行病学调查。结果 2020年发病率22.2/10万较前一年有所降低,2016年1月-2020年12月年发病率呈现上升趋势,差异有统计学意义(P<0.05)。结论新疆昌吉地区的梅毒2016年1月-2020年12月呈小幅度逐渐上升趋势,2020年开始已经开始下降,这与加强了传染病管控机制和综合干预措施,以及各医疗机构提升了梅毒诊断、治疗标准密切相关,而重视对梅毒防控知识的宣传,可以有效降低产生疾病传播风险因素,在人群中提升对梅毒的防范意识,提升人口素质的同时,降低带给社会的危害性。

关键词：梅毒流行病学社会危害性昌吉地区

Typical diseases of a long-span concrete-filled steel tubular arch bridge and their effects on vehicle-induced dynamic response

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Frontiers of Structural and Civil Engineering 2020年第4期14卷 867-887页

作者： jianling HOU Weibing XU Yanjiang CHEN Kaida ZHANG Hang SUN Yan LI College of Architecture and Civil Engineering Bejing University of TechnologyBejing 100124China School of Transportation Science and Engineering Harbin Institute of TechnologyHarbin 150090China

A long-span concrete-filled steel tubular(CFST)arch bridge suffers severe vehicle-induced dynamic responses during its service ***,few quantitative studies have been reported on the typical diseases suffered by such bridges and their effects on vehicle-induced dynamic ***,a series of field tests and theoretical analyses were conducted to study the effects of typical diseases on the vehicle-induced dynamic response of a typical CFST arch *** results show that a support void results in a height difference between both sides of the expansion joint,thus increasing the effect of vehicle impact on the main girder and *** impact factor of the displacement response of the main girder exceeds the design *** variation of the suspender force is significant,and the diseases are found to have a greater effect on a shorter *** theoretical analysis results also show that the support void causes an obvious longitudinal displacement of the main girder that is almost as large as the vertical *** support void can also cause significant changes in the vehicle-induced acceleration response,particularly when the supports and steel box girder continue to collide with each other under the vehicle load.

关键词： long-span arch bridge expansion joint disease vehicle-bridge coupling vibration dynamic response

Range-Only UWB SLAM for Indoor Robot Localization Employing Multi-Interval EFIR Rauch-Tung-Striebel Smoother

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Computer Modeling in Engineering & Sciences 2022年第2期130卷 1221-1237页

作者： Yanli Gao Wanfeng Ma Jing Cao jianling Qu Yuan Xu Qingdao Branch of Naval Aviation University Qingdao266000China School of Electrical Engineering University of JinanJinan250022China Shandong Beiming Medical Technology Co. Ltd.Jinan250022China

For improving the localization accuracy,a multi-interval extended finite impulse response(EFIR)-based Rauch-Tung-Striebel(R-T-S)smoother is proposed for the range-only ultra wide band(UWB)simultaneous localization and mapping(SLAM)for robot *** this mode,the EFIR R-T-S(ERTS)smoother employs EFIR filter as the forward filter and the R-T-S smoothing method to smooth the EFIR filter’s *** the east or the north position is considered as stance,the ERTS is used to smooth the position ***,the estimation of the UWB Reference Nodes’(RNs’)position is smoothed by the R-T-S smooth method in *** test illustrates that the proposedmulti-interval ERTS smoothing for range-only UWB SLAMis able to provide accurate *** with the EFIR filter,the proposed method improves the localization accuracy by about 25.35%and 40.66%in east and north directions,respectively.

关键词： Robot localization ultra wide band Rauch-Tung-Striebel smoother extended FIR filter

情景模拟教学联合问题驱动教学法在麻醉科住院医师规范化培训期间的应用

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齐齐哈尔医学院学报 2024年第14期45卷 1387-1391页

作者：林郁玮翁迪贵王建铃福建医科大学附属闽东医院麻醉科福建福安355000 福建医科大学附属闽东医院神经外科

目的研究情景模拟教学(SST)联合问题驱动教学法(PBL)在麻醉科住院医师规范化培训期间的应用效果。方法选择2022年1月—2023年12月本院麻醉科进行规范化培训住院医师85名作为研究对象,依据数字排列表法分成对照组(n=42,传统培训)和观察... 详细信息

目的研究情景模拟教学(SST)联合问题驱动教学法(PBL)在麻醉科住院医师规范化培训期间的应用效果。方法选择2022年1月—2023年12月本院麻醉科进行规范化培训住院医师85名作为研究对象,依据数字排列表法分成对照组(n=42,传统培训)和观察组(n=43,SST+PBL)两组。比较两组住院医师专科成绩、教学方式评价、教学后Mini-CEX考核情况。结果培训后观察组住院医师的理论及操作成绩相对于对照组更高(P<0.05);培训后观察组住院医师对教学方式的评分高于对照组(P<0.05);培训后观察组住院医师Mini-CEX考核成绩高于对照组(P<0.05)。结论麻醉科住院医师规范化培训采取SST联合PBL有利于提高住院医师专科成绩、教学方式评价、教学后Mini-CEX考核情况,值得在临床教学中推广实施。

关键词：情景模拟教学问题驱动教学法麻醉科培训

产出导向背景下分析化学实验“四位一融入”教学模式探索

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广东化工 2024年第8期51卷 164-167页

作者：王建玲缪应纯杨海征曲靖师范学院化学与环境科学学院云南曲靖655011

基于产出导向的教育理念,我们将“四位一融入”教学模式引入到分析化学实验教学过程中,定位培养体系、线上教学资源、实验操作内容和学生达标情况,自然融入课程思政内容,采用线上线下混合式教学,充分利用现代信息化技术,探索分析化学实... 详细信息

基于产出导向的教育理念,我们将“四位一融入”教学模式引入到分析化学实验教学过程中,定位培养体系、线上教学资源、实验操作内容和学生达标情况,自然融入课程思政内容,采用线上线下混合式教学,充分利用现代信息化技术,探索分析化学实验课程教学的新模式。该模式提倡以学生为中心,通过启发式教学,提升学生对课程知识的综合运用能力,培养学生发现并提出问题、分析问题与解决问题的能力,加强学生实践能力、创新精神和爱国情怀的培养,使学生具备良好的科学素养。

关键词：产出导向分析化学实验四位一融入混合式教学

吸收式溴化锂机组回收蒸汽凝液余热制冷技术改造分析

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煤化工 2024年第1期52卷 36-39,43页

作者：朱云飞冯赟张建玲鄂尔多斯市鑫润能源有限公司内蒙古鄂尔多斯017419

介绍了余热回收溴化锂制冷机组的工作原理,针对鑫润公司60万t/a草酸技改乙二醇装置存在的1.0 MPa(G)蒸汽冷凝液大量直排、所含余热未进行利用的问题,进行了技术改造,即在乙二醇冷冻站新增吸收式溴化锂制冷机组系统,利用凝液余热制取冷... 详细信息

介绍了余热回收溴化锂制冷机组的工作原理,针对鑫润公司60万t/a草酸技改乙二醇装置存在的1.0 MPa(G)蒸汽冷凝液大量直排、所含余热未进行利用的问题,进行了技术改造,即在乙二醇冷冻站新增吸收式溴化锂制冷机组系统,利用凝液余热制取冷冻水。改造后,热能浪费问题得到了有效解决,每年可节约电能2740.53万kW·h,相当于节约标准煤3368.11 t、减少CO_(2)排放量15629.24 t。

关键词：蒸汽冷凝液余热回收吸收式溴化锂制冷机组空气冷却器

Nonreciprocity of energy transfer in a nonlinear asymmetric oscillator system with various vibration states

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Applied Mathematics and Mechanics(English Edition) 2023年第5期44卷 727-744页

作者： Jian’en CHEN jianling LI Minghui YAO Jun LIU Jianhua ZHANG Min SUN Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control School of Mechanical EngineeringTianjin University of TechnologyTianjin 300384China National Demonstration Center for Experimental Mechanical and Electrical Engineering Education Tianjin University of TechnologyTianjin 300384China School of Aeronautics and Astronautics Tiangong UniversityTianjin 300387China Agricultural Information Institute of Chinese Academy of Agricultural Sciences Key Laboratory of Agricultural Big DataMinistry of Agriculture and Rural AffairsBeijing 100081China School of Science Tianjin Chengjian UniversityTianjin 300384China

The nonreciprocity of energy transfer is constructed in a nonlinear asymmetric oscillator system that comprises two nonlinear oscillators with different parameters placed between two identical linear *** slow-flow equation of the system is derived by the complexification-averaging *** semi-analytical solutions to this equation are obtained by the least squares method,which are compared with the numerical solutions obtained by the Runge-Kutta *** distribution of the average energy in the system is studied under periodic and chaotic vibration states,and the energy transfer along two opposite directions is *** effect of the excitation amplitude on the nonreciprocity of the system producing the periodic responses is analyzed,where a three-stage energy transfer phenomenon is *** the first stage,the energy transfer along the two opposite directions is approximately equal,whereas in the second stage,the asymmetric energy transfer is *** energy transfer is also asymmetric in the third stage,but the direction is reversed compared with the second ***,the excitation amplitude for exciting the bifurcation also shows an asymmetric *** vibrations are generated around the resonant frequency,irrespective of which linear oscillator is *** excitation threshold of these chaotic vibrations is dependent on the linear oscillator that is being *** addition,the difference between the energy transfer in the two opposite directions is used to further analyze the nonreciprocity in the *** results show that the nonreciprocity significantly depends on the excitation frequency and the excitation amplitude.

关键词： nonreciprocity strong nonlinearity energy transfer chaotic vibration higher branch of response

Nanoscale noble metals with a hollow interior formed through inside-out diffusion of silver in solid-state core- shell nanoparticles

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Nano Research 2015年第2期8卷 512-522页

作者： Pengfei Hou Penglei Cui Hui Liu jianling Li Jun Yang State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing 30 College Road Beijing 100083 China State Key Laboratory of Multiphase Complex Sys tems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

Noble metal nanoparticles with hollow interiors and customizable shell com- positions have immense potential for a wide variety of applications. Herein, we present a facile, general, and cost-effective strategy for the synthesis of noble metal nanoparticles with hollow structures, which is based on the inside-out diffusion of Ag in solid-state core-shell nanoparticles. This approach starts with the preparation of core-shell nanoparticles with Ag residing in the core region, which are then loaded on a solid substrate and aged in air to allow the inside-out diffusion of Ag from the core region, leading to the formation of monometallic or alloy noble metal nanoparticles with a hollow interior. The synthesis was carried out at room temperature and could be achieved on different solid substrates. In particular, the inside-out diffusion of Ag calls for specific concern with respect to the evaluation of the catalytic performance of the Ag-based core--shell nanoparticles since it may potentially interfere with the physical and chemical properties of the core-shell particles.

关键词： noble metal nanoparticle inside-out diffusion solid-state core-shell hollow