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Analysis of a Community-based Intervention to Reduce Heat-related Illness during Heat Waves in licheng,China:a Quasi-experimental Study

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Biomedical and Environmental Sciences 2016年第11期29卷 802-813页

作者： li Jing XU Xin WANG Jun ZHAO Yun SONG Xiu Ping liU Zhi Dong cao li na JIANG Bao Fa liUQiYong Department of Epidemiology School of Public HealthShandong UniversityJinan 250012ShandongChina State Key Laboratory of lnfectious Disease Prevention and Control Collaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesNational Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Shandong University Climate Change and Health Center Jinan 250012ShandongChina Department of Dentistry Affiliated HospitalWeifang Medical UniversityWeifang 261000ShandongChina licheng District Center for Disease Control and Prevention Jinan 250012ShangdongChina

Objective To reduce health-related threats of heat waves, interventions have been implemented in many parts of the world. However, there is a lack of higher-level evidence concerning the intervention efficacy. This study aimed to determine the efficacy of an intervention to reduce the number of heat-related illnesses. Methods A quasi-experimental design was employed by two cross-sectional surveys in the year 2024 and 2015, including 2,240 participants and 2,356 participants, respectively. Each survey was designed to include one control group and one intervention group, which conducted in licheng, China. A representative sample was selected using a multistage sampling method. Data, collected from questionnaires about heat waves in 2014 and 2015, were analyzed using a difference-in-difference analysis and cost effectiveness analysis. Outcomes included changes in the prevalence of heat-related illnesses and cost-effectiveness variables. Results Relative to the control participants, the prevalence of heat-related illness in the intervention participants decreased to a greater extent in rural areas than in urban areas （OR=0.495 vs. OR=2.282）. Moreover, the cost-effectiveness ratio in the intervention group was tess than that in the control group （usS25.06 vs. us$25.69 per participant）. Furthermore, to avoid one additional patient, the incremental cost-effectiveness ratio showed that an additional USS14.47 would be needed for the intervention compared to when no intervention was applied. Conclusion The intervention program may be considered a worthwhile investment for rural areas that are more likely to experience heat waves. Meanwhile, corresponding improving measures should be presented towards urban areas. Future research should examine whether the intervention strategies could be spread out in other domestic or international regions where heat waves are usually experienced.

关键词： Effectiveness Intervention Quasi-experimental Heat waves Difference-in-differenceanalysis Cost-effectiveness analysis

唐代民间营利性乐舞生产之宫廷艺术家的“商演”

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中国音乐学 2013年第3期 36-42页

作者：曹丽娜北京戏曲艺术职业学院

唐代民间乐舞活动异常繁盛,出现许多用于交换、出售的乐舞产品,这是一种用来营利谋生的特殊商品,笔者称为"营利性乐舞"①。本文主要论述上堂卖艺式乐舞生产中宫廷艺术家的商业性演出。在关注这些现象的同时,也关注艺术生产者②本身,关... 详细信息

唐代民间乐舞活动异常繁盛,出现许多用于交换、出售的乐舞产品,这是一种用来营利谋生的特殊商品,笔者称为"营利性乐舞"①。本文主要论述上堂卖艺式乐舞生产中宫廷艺术家的商业性演出。在关注这些现象的同时,也关注艺术生产者②本身,关注乐舞生产者的行为可了解其反映的意识形态和当时的社会音乐发展状况。笔者还尝试对这些现象作经济学分析,描绘唐代民间营利性乐舞生产状况,希望能为了解唐代社会音乐商品经济的总状况增砖添瓦。

关键词：营利性乐舞艺术生产宫廷艺术家商业演出

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唐代商业场所的营利性乐舞生产

中国音乐学 2009年第3期 89-95,100页

作者：曹丽娜北京戏曲学校

唐代是乐舞艺术发展的高峰,民间活动异常繁盛,出现许多用于交换、出售的乐舞产品。借用经济学的艺术生产理论,乐舞作品的创作、表演及前期人员培训可视为"生产"过程;"流通"则指乐舞产品在市场上通过交换、交流、消费而获得利润的过程。... 详细信息

唐代是乐舞艺术发展的高峰,民间活动异常繁盛,出现许多用于交换、出售的乐舞产品。借用经济学的艺术生产理论,乐舞作品的创作、表演及前期人员培训可视为"生产"过程;"流通"则指乐舞产品在市场上通过交换、交流、消费而获得利润的过程。本文探讨了依附于商业场所的营利性乐舞的生产者、组织方式、内容及特点,结合现代经济学理论剖析唐代音乐商品经济总体状况,以期进一步明确歌舞繁盛的经济原因。

关键词：营利性乐舞艺术生产艺术商品酒楼妓馆

Si-C Foam Porous-Medium Combustion Power-Generation System for Low-Calorific-Value Biomass Syngas

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Journal of Thermal Science 2025年第1期34卷 206-222页

作者： YANG Jianwen CHEN Wei cao Bingwei liU Xinhui li Hang College of Mechanical and Aerospace Engineering Jilin University School of Mechanical and Vehicle Engineering Changchun University

Syngas produced from the gasification of organic feedstocks from biomass is one of the clean and sustainable sources of *** advantages of simple access and renewability of biomass energy can meet the energy needs of temporary power *** study presents a biomass power-generation system for vehicular *** biomass and a free-piston Stirling engine generator（FPSEG） as the primary material and prime mover,respectively,biomass energy is converted into electricity by combusting the syngas to heat the *** and key parameter design for biomass gasification and thermoelectric conversion systems within a power generation system were performed.A porous medium area was constructed using Si-C foam ceramics to obtain an energy-conversion experimental *** effects of bed height,porosity,porous-region diameter,and air-intake conditions on the power-generation performance were investigated,and optimisations were performed for the thermoelectric conversion *** rate of increase during FPSEG power generation first increased and then decreased with increasing bed height,peaking at a bed height of 40 *** increasing porous-region diameter accelerated FPSEG power generation,whereas porosity changes in the porous media did not significantly affect the rate of change during FPSEG power *** increasing air intake,the rate of increase during power generation first increased and then *** maximum change rate and the highest thermoelectric conversion efficiency of the power-generation system occurred at 9.5 m3/h and 6.5 m3/h（～45.1%）air intakes,*** the thermal inertia and combustion structure of the thermoelectric conversion system significantly increased the power-generation rate of the system,with 1.8 W/s being observed at a 9.7 m3/h air intake.

关键词： biomass combined heat and power (CHP) gasification porous media combustion power generation

The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 275-282页

作者： GAO Qian li Jun WANG Xianhui cao Laifu GONG Jian li Bo Central Iron and Steel Research Institute Group Beijing 100081China Shougang Zhixin Electromagnetic Material R&D(Beijing)Co. Ltd.Beijing 101300China Beijing Shougang Co. Ltd.Qian’an 064404China

Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were *** illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically *** effect of precipitate ripening on the Goss texture and magnetic property was *** indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate *** recrystallization was developed at the temperature of 1010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}oriented grains growing abnormally and a magnetic induction intensity of ***,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss ***,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 *** a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1020℃were found among the experimental variables in this *** heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.

关键词： high temperature annealing heating rate secondary recrystallization grain oriented silicon steel

Experimental Observing Damage Evolution in Cement Pastes Exposed to External Sulfate Attack by in situ X-ray Computed Tomography

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 164-170页

作者： WU Min cao Kailei XIAO Weirong YU Zetai cao Jierong DING Qingjun li Jinhui China Railway Construction Corporation Harbour and Channel Engineering Bureau Group Co. LTDZhuhai 519000China Con-struction Headquarters of Zhoushan liuheng Bridge Phase II Project Zhoushan 316000China China Railway Construction Bridge En-gineering Bureau Group Co. LTDTianjin 300000China State Key Laboratory of Silicate Material for Architecture(Wuhan University of Technology) Wuhan 430070China College of Materials Science and Engineering Wuhan Textile UniversityWuhan 430200China

The paper presents experimental investigation results of crack pattern change in cement pastes caused by external sulfate attack(ESA).To visualize the formation and development of cracks in cement pastes under ESA,an X-ray computed tomography(X-ray CT)was used,i e,the tomography system of Zeiss Xradia 510 *** results indicate that X-CT can monitor the development process and distribution characteristics of the internal cracks of cement pastes under ESA with attack *** addition,the C3A content in the cement significantly affects the damage mode of cement paste specimens during sulfate *** damage of ordinary Portland cement(OPC)pastes subjected to sulfate attack with high C3A content are severe,while the damage of sulfate resistant Portland cement(SRPC)pastes is much smaller than that of OPC ***,a quadratic function describes the correlation between the crack volume fraction and development depth for two cement pastes immermed in sulfate solution.

关键词： concrete external sulfate attack damage evolution situ X-ray computed tomography

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基于Bayes理论的液压挖掘机可靠性研究

煤矿机械 2012年第11期33卷 56-58页

作者：曹丽娜山东工业职业学院山东淄博256414

为了能够提高液压挖掘机可靠性分析的准确性,为液压挖掘机的研发和维修提出有利的理论依据,深入地研究了Bayes理论在其中的应用。分析了Bayes理论的基本思路;分析了基于最大熵法的先验分布计算方法;研究了似然函数的确定方法,同时设计... 详细信息

为了能够提高液压挖掘机可靠性分析的准确性,为液压挖掘机的研发和维修提出有利的理论依据,深入地研究了Bayes理论在其中的应用。分析了Bayes理论的基本思路;分析了基于最大熵法的先验分布计算方法;研究了似然函数的确定方法,同时设计了液压挖掘机可靠性分析的流程;以某液压挖掘机为例,进行了可靠性参数的估计,分析结果表明该方法具有较好的鲁棒性。

关键词： Bayes理论液压挖掘机可靠性

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串口服务器内外网数据安全通信方法仿真

计算机仿真 2022年第7期39卷 208-212页

作者：李娜周瑛曹丽娜石家庄铁道大学四方学院河北石家庄051132

当前已有串口服务器数据安全通信方法无法判断网络堵塞状态,导致数据通信效率偏低,且平均响应时间较长。为解决上述问题,研究串口服务器内外网数据安全通信方法。根据串口服务器端的数据通信请求,将其IP地址及端口号输入至配置文件中。... 详细信息

当前已有串口服务器数据安全通信方法无法判断网络堵塞状态,导致数据通信效率偏低,且平均响应时间较长。为解决上述问题,研究串口服务器内外网数据安全通信方法。根据串口服务器端的数据通信请求,将其IP地址及端口号输入至配置文件中。利用WCF技术,获取已输入配置文件中的信息,经串口服务器内外网判断后合成内外网数据通信路径,实现数据通信;利用缓冲系统抑制延迟和抖动对数据通信持续输出的影响。并通过包丢失率和延迟抖动两个参数判断网络堵塞状态,确保传输速率的最优化,实现串口服务器内外网数据安全通信。仿真结果表明,所提方法可最大程度缩小中间数据Shuffle所占比例,使数据安全通信效果更理想;且数据安全通信的平均响应时间显著降低且,通信性能更稳定。

关键词：串口服务器内外网数据通信延迟抖动传输速率

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基于主题模型的BBS话题演化趋势分析

管理科学学报 2014年第11期17卷 109-121页

作者：曹丽娜唐锡晋中国科学院数学与系统科学研究院北京100190

互联网引发的舆情问题愈发突出,网络舆情研究已被深度关注.话题演化是网络舆情分析的重要内容之一,本文尝试从话题热度变化和内容变化两方面研究舆情动态.本文选取天涯论坛民生讨论的主要版块——天涯杂谈的首发帖为舆情来源,分析比较... 详细信息

互联网引发的舆情问题愈发突出,网络舆情研究已被深度关注.话题演化是网络舆情分析的重要内容之一,本文尝试从话题热度变化和内容变化两方面研究舆情动态.本文选取天涯论坛民生讨论的主要版块——天涯杂谈的首发帖为舆情来源,分析比较一系列主题模型后,建立动态主题模型(DTM).通过挖掘随时间变化的动态话题链,从词语变化的微观角度分析热门事件下公众意见的变迁过程,还原事件的整个发展过程.本文提出话题热度计算方法,通过计算2012全年天涯杂谈版块下所有新发帖的话题热度值变化及可视化分析,总结了BBS话题的三个规律.

关键词：主题模型 DTM 话题演化天涯论坛