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A review of research on public transport priority based on CiteSpace

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Journal of Traffic and Transportation Engineering(English Edition) 2023年第6期10卷 1118-1147页

作者： Guozhu Cheng xuanling liu Yulong Pei School of Civil Engineering&Transportation Northeast Forestry UniversityHarbin 150040China

The prioritization of public transit as an essential means of promoting sustainable urban development has a significant role in improving the quality of public transportation services,reducing traffic congestion,and enhancing air *** improve the implementation of public transit prioritization policies,this study conducted a comprehensive review of relevant literature on public transit prioritization from two major citation databases(Web of Science and China National Knowledge Infrastructure)from 2003 to *** the visualization analysis software CiteSpace,this study analyzed knowledge visualization from five aspects:research sources,research institutions,knowledge foundation,knowledge frontier,and research hotspots,and summarized the research history and implementation effectiveness of public transit prioritization *** study concludes that existing research has some deficiencies in terms of urban diversity,comprehensive evaluation system,holistic perspective,interdisciplinary collaboration,and consideration of economic and environmental *** research should focus on development directions such as intelligence,sustainability,interdisciplinary collaboration,and integration of multi-modal *** findings of this study can provide valuable references for the implementation of public transportation prioritization policies and future research.

关键词： Urban traffic Public transport priority Bus lane Signal control Visualization analysis

Efficient and Stable CsPbI2Br Perovskite Solar Cells Based on In-situ Formation of 2D/3D Heterostructure

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Efficient and Stable CsPbI2Br Perovskite Solar Cells Based o...

Incorporation of zinc porphyrin dye and N719 dye for highly efficient and stable perovskite solar cells

第九届新型太阳能材料科学与技术学术研讨会

作者： xuanling liu Meiqian Tai Hong Lin School of Materials Science and Engineering Tsinghua University

Mixed halide inorganic perovskite CsPbI2 Br has been considered as promising absorber due to its improved phase stability and reasonable bandgap(1.92 eV). However, the instability of CsPbI2 Br solar cells in humidity environment hampers its further development. In order to prepare efficient and stable CsPbI2 Br solar cells, our group used carbon nanotube(CNT) sheets as an evaporator to prepare CsPbI2 Br thin films by Flash-evaporation printing(FEP) at high temperature without solvent and anti-solvent, demonstrating a method that can prepare compact and uniform thin films with high reproducibility and it’s also suitable for preparing insoluble materials. Solar cells based on these CsPbI2 Br thin films exhibited a champion power conversion efficiency of 12.2%. To further improve the humidity stability, we next reported an in-situ growth method to prepare 2 D/3 D heterostructure for CsPbI2 Br solar cells with the help of solvent, which overcome difficulties of constructing 2 D perovskite for Cs-based perovskite through simple cation-exchange because of reaction resistance. As a result, the Type Ⅱ heterostructure was constructed between the 2 D capping layer and 3 D perovskite, which facilitated hole extraction and suppressed the carrier recombination at the perovskite/hole transport layer interface. The optimized CsPbI2 Br solar cells based on 2 D/3 D heterostructure exhibited power conversion efficiencies of 14.5% with improved humidity stability. To further increase the device stability, vertically-aligned quasi-2 D CsPbI3 solar cells were prepared by controlling the crystallization kinetics, and the variation law of phase purity, film morphology, and crystal orientation was revealed.

关键词： Perovskite solar cells 2D/3D heterostructure Stability CsPbI2Br perovskite Flash-evaporation printing

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Incorporation of zinc porphyrin dye and N719 dye for highly ...

第七届新型太阳能电池材料科学与技术学术研讨会

作者： Yu Zhou Minghua Zhang Ziyi Wu Meiqian Tai Qi Zhang Yangying Zhou xuanling liu Han Zhong Weihang Li Yiran Ye Hong Lin State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua University

Perovskite solar cells(PSCs) have experienced sharp development and emerged as a superstar in the field of photovoltaics in recent *** introduces two kinds of dyes,zinc porphyrin(YD2-o-C8) and cis-di(thiocyanato)bis(2,2-bipyridyl4,4-dicarboxylate)ruthenium(II)(denoted as N719) to enable highly efficient and highly stable perovskite solar *** find that the YD2-o-C8 molecules with carboxylate groups are able to anchor with under-coordinated Pb defects in the perovskite films which would suppress charge ***,perovskites with YD2-o-C8 form an appropriate energy level alignment which is found to be beneficial for both charge separation and extraction in n–i–p *** to these improvements,the best performing device with YD2-o-C8 shows a PCE of 20.5% with reduced hysteresis,while the unmodified devices show a champion efficiency of 18.5%.For N719,we discovered that the N719 molecules form perovskite-dye complexes in the precursor solution,leading to larger grains and better film crystallinity by slowing down the crystallization *** presence of N719 molecules in perovskite films greatly retards the formation of perovskite hydrates due to a three-times-increased water migration *** to these improvements,no encapsulated N719-PSC retain over 80% of their original efficiencies after aging under a high relative humidity of 60% for 250 h,which is three times longer than that for pristine *** all,cheap and effective routes to improve the efficiency and stability of perovskite solar cells by dyes are represented.

关键词： perovskite solar cells dye molecule efficiency stability

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高层建筑消防防烟及排烟设计探讨

山西建筑 2017年第28期43卷 28-29页

作者：刘泫灵廖艳琳厦门市公安消防支队福建厦门361021

结合高层建筑火灾的特点,阐述了建筑消防防烟、排烟设计的重要性,并对当前高层建筑消防防烟、排烟设计中存在的问题进行了深入分析,提出了高层建筑消防防烟、排烟设计的方案与对策。

关键词：高层建筑消防防火防烟排烟

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保山市无偿献血相关知信行调查

中国输血杂志 2015年第8期28卷 897-899页

作者：沈建忠陈兆庆陶刚刘宣伶保山市中心血站云南保山678000

目的为进一步了解保山市无偿献血的现状,为今后无偿献血的宣传、教育、动员和招募策略提供参考。方法按照知信行(KAP)的理论设计问卷调查表,向受调查人群随机发放调查问卷600份,对被调查者的一般情况、对无偿献血知识、危险行为、无偿... 详细信息

目的为进一步了解保山市无偿献血的现状,为今后无偿献血的宣传、教育、动员和招募策略提供参考。方法按照知信行(KAP)的理论设计问卷调查表,向受调查人群随机发放调查问卷600份,对被调查者的一般情况、对无偿献血知识、危险行为、无偿献血的态度、参与无偿献血的动机等进行分析比较。结果在受调查人群的3个年龄段中,18-30岁年龄段占59.5%,31-45岁年龄段的献血率明显高于其他2个年龄段(P0.05);在职业方面,以工人(其中大部分是企业的农民工)、农民、民工、事业人员和学生为主,占83%;人群的学历分布以高中以下学历为主,占75%。知晓率最高为82.5%,最低为64.9%;献血者和未献血者对无偿献血常识知晓的比较有统计学意义(P0.05);献血动机以帮助别人(51.4%)和有益健康(37.1%)为主;在对待献血的态度方面,占73.6%的受访者愿意1年至少献1次血;不愿献血的原因以没时间(34.5%)、身体不适合献血(20.7%)、怕痛(18.4%)为主。结论只有制定针对不同人群的宣传、动员、招募策略,同时不断改进服务,才能使更多人献血。

关键词：无偿献血知信行(KAP)

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白车身灵敏度分析及轻量化设计

武汉理工大学学报（交通科学与工程版） 2019年第5期43卷 832-836页

作者：李胜琴刘轩龄冯新园东北林业大学交通学院

针对某型全铝白车身,进行强度分析,提出基于轻量化的优化方案.建立有限元模型,依据车辆实际运行工况施加约束及载荷,对车身的弯曲刚度和扭转刚度性能进行计算,并对这两种工况下车身的主要开口变形情况进行研究,以车身板件厚度为变量,对... 详细信息

针对某型全铝白车身,进行强度分析,提出基于轻量化的优化方案.建立有限元模型,依据车辆实际运行工况施加约束及载荷,对车身的弯曲刚度和扭转刚度性能进行计算,并对这两种工况下车身的主要开口变形情况进行研究,以车身板件厚度为变量,对车身进行结构灵敏度分析,依据灵敏度分析数据,以轻量化为目标,确定优化变量,对车身结构进行优化.结果表明,对改进的基础模型进行零件厚度优化后,白车身静动态性能指标都达到国内外同类车型的标准,同时车身质量有所降低,符合优化设计的轻量化要求,验证了优化方案的可行性.

关键词：有限元模型车身结构灵敏度分析结构优化轻量化

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皮卡车主动悬架防侧翻控制策略研究

武汉理工大学学报（交通科学与工程版） 2018年第3期42卷 383-387页

作者：李胜琴刘轩龄冯新园东北林业大学交通学院哈尔滨150040

针对皮卡车的结构及工作特点,基于主动悬架的工作原理,对车辆侧翻稳定性进行研究.设定横向载荷转移率为车辆侧翻判定阈值,采用PID控制及模糊控制两种方法,设计防侧翻控制器,对悬架系统施加相应的主动控制力,以矫正车身姿态,增强车辆侧... 详细信息

针对皮卡车的结构及工作特点,基于主动悬架的工作原理,对车辆侧翻稳定性进行研究.设定横向载荷转移率为车辆侧翻判定阈值,采用PID控制及模糊控制两种方法,设计防侧翻控制器,对悬架系统施加相应的主动控制力,以矫正车身姿态,增强车辆侧翻稳定性.基于CarSim与Matlab/Simulink环境,建立皮卡车主动悬架防侧翻控制联合仿真模型,在鱼钩试验和双移线两种工况下进行仿真试验,以验证所设计的控制策略的有效性.结果表明,建立的主动悬架防侧翻控制策略能够有效控制车辆急转弯时车身姿态的变化,维持车辆良好的侧倾稳定性.

关键词：皮卡车主动悬架侧翻控制策略联合仿真

Measurement of dynamic membrane mechanosensation using optical tweezers

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Journal of Molecular Cell Biology 2021年第6期13卷 455-457页

作者： xuanling Li Xing liu Xiaoyu Song Yinmei Li Ming Li Haowei Wang Department of Optics and Optical Engineering University of Science and Technology of China and Hefei National Laboratory for Physical Sciences at the MicroscaleHefeiChina MOE Key Laboratory for Membraneless Organelles&Cellular Dynamics Anhui Key Laboratory for Cellular Dynamics and Chemical BiologyHefeiChina Department of Laboratory Diagnostics the First Affiliated HospitalUniversity of Science and Technology of ChinaHefeiChina

Many cellular processes are orchestrated by dynamic changes in the plasma membrane to form membrane projections and endocytic compartments in response to extracellular cue *** previous studies show that post-translational modifications of ACAP4 regulate membrane dynamics and curvature in response to epidermal growth factor and chemokine(C−C motif)ligand 18 stimulation(Zhao et al.,2013;Song et al.,2018).

关键词： dynamic curvature translational

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响应面法优化泡沫分离桑叶蛋白工艺

食品科学 2015年第8期36卷 97-102页

作者：刘海彬张炜陈元涛李轩领陈亮高中超青海师范大学化学系青海西宁810008

利用响应面法对泡沫分离桑叶蛋白的工艺条件进行优化,在单因素试验的基础上,根据Box-Behnken试验设计原理,选取稀释倍数、离子强度、温度和pH值4个因素,依据回归分析法来确定各工艺条件的影响因素,以桑叶蛋白的回收率和富集比为响应值... 详细信息

利用响应面法对泡沫分离桑叶蛋白的工艺条件进行优化,在单因素试验的基础上,根据Box-Behnken试验设计原理,选取稀释倍数、离子强度、温度和pH值4个因素,依据回归分析法来确定各工艺条件的影响因素,以桑叶蛋白的回收率和富集比为响应值作响应面和等高线图,得出桑叶蛋白泡沫分离的最佳工艺条件为:稀释40倍、pH 5.5、离子强度0.18 mol/kg、温度25℃。在该工艺条件下,桑叶蛋白的实际回收率为92.50%,富集比为7.63。验证实验结果表明,泡沫分离法能够作为桑叶蛋白粗分离的一种新方法。

关键词：泡沫分离桑叶蛋白响应面法回收率富集比