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Estimating the frequency of traffic overloading on road bridges

Journal of Traffic and Transportation Engineering(English Edition) 2024年第4期11卷 776-796页

作者： Roberto Ventura benedetto Barabino Giulio Maternini Department of Civil EnvironmentalArchitectural Engineering and MathematicsUniversity of BresciaBrescia 25123Italy

Load limits,which appear to be routinely exceeded by trucks,occasionally result in road bridge ***,predicting failures is crucial for safeguarding road *** studies have largely focused on forecasting bridge failure event probability using the reliability analysis method,whilst occasionally accounting for vehicular overloading *** recently,a study has investigated design traffic overloading event frequency using generalised linear regression models(GLRMs),including a power component and negative binomial regressions(NBRs).However,as far as the authors know,artificial neural network models(ANNMs)have never been applied to this *** paper is an attempt to fill in these *** a frequencybased metric of traffic overloading was adopted as a driver of failure ***,two alternative‘frequency'models were specified,calibrated,and *** former was based on a GLRM,the latter on ***,these models were compared using regression plots(RPs),measures of errors(Mo Es)and the ratio between the number of observed vs predicted design load overcoming events to evaluate their *** models analysed more than 2 million weigh-in-motion(WIM)data records from a pilot station on a bridge on a heavily used ring road in Brescia(Italy).Results showed that ANNMs outperformed *** have a higher correlation coefficient(between predicted and target frequencies),lower Mo Es,and a closer-to-unity ratio(between predicted and target frequencies).These findings may increase prediction accuracy of design traffic overloading events and give road authorities more effective traffic management to protect bridges from load hazards.

关键词： Road bridges Traffic load hazard Econometry Machine learning Weigh-in-motion Big-data analysis

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Cross-layer all-interface defect passivation with pre-buried additive toward efficient all-inorganic perovskite solar cells

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Carbon Energy 2024年第9期6卷 283-291页

作者： Qiurui Wang Jingwei Zhu Yuanyuan Zhao Yijie Chang nini Hao Zhe Xin Qiang Zhang Cong Chen Hao Huang Qunwei Tang College of Mechanical and Electronic Engineering Shandong University of Science and TechnologyQingdaoChina College of Materials Science and Engineering Sichuan UniversityChengduChina Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials School of ResourcesEnvironment and MaterialsGuangxi UniversityNanningChina Institute of Carbon Neutrality College of Chemical and Biological EngineeringShandong University of Science and TechnologyQingdaoChina

The buried interface in the perovskite solar cell(PSC)has been regarded as a breakthrough to boost the power conversion efficiency and ***,a comprehensive manipulation of the buried interface in terms of the transport layer,buried interlayer,and perovskite layer has been largely ***,we propose the use of a volatile heterocyclic compound called 2-thiopheneacetic acid(TPA)as a pre-buried additive in the buried interface to achieve cross-layer all-interface defect passivation through an in situ bottom-up infiltration diffusion *** not only suppresses the serious interfacial nonradiative recombination losses by precisely healing the interfacial and underlying defects but also effectively enhances the quality of perovskite film and releases the residual strain of perovskite *** to this versatility,TPA-tailored CsPbBr3 PSCs deliver a record efficiency of 11.23% with enhanced long-term *** breakthrough in manipulating the buried interface using TPA opens new avenues for further improving the performance and reliability of PSC.

关键词： buried interfaces charge recombination defect passivation inorganic perovskite solar cells strain relaxation

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Red-emissive carbon quantum dots minimize phototoxicity for rapid and long-term lipid droplet monitoring

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Chinese Chemical Letters 2024年第10期35卷 341-347页

作者： Fengkai Zou Borui Su Han Leng nini Xin Shichao Jiang Dan Wei Mei Yang Youhua Wang Hongsong Fan Department of orthopedics Affiliated Hospital of Nantong UniversityNantong 226001China Graduate School Dalian Medical UniversityDalian 116044China National Engineering Research Center for Biomaterials College of Biomedical EngineeringSichuan UniversityChengdu 610064China School of Chemistry and Chemical Engineering Liaoning Normal UniversityDalian 116029China

Long-term fluorescence monitoring of subcellular organelles is crucial for cellular physiology and pathology *** droplets(LDs)are increasingly recognized for their involvement in various biological processes,to influence disease development through diverse behaviors However,existing LD probes face challenges in achieving high targeting and long-term monitoring due to poor photostability and long-term *** quantum dots(CQDs)have gained prominence due to their exceptional fluorescence properties,but their prevalent blue excitation wavelength presents difficulties for long-term ***,we synthesized red-emissive carbon quantum dot(R-CQDs)with superior photobleaching resistance and red-emission,thus enabling harmlessly fluorescence monitoring of cells longer than3 *** addition,R-CQD exhibits suitable amphiphilicity and remarkable solvatochromic effect,allowing rapid targeting to LDs for immediate imaging without cumbersome washing ***,R-CQD shows high performance for extended observation of dynamic LD behavior in various biological processes,which is confirmed by documenting the course of LDs during starvation as well as *** to commercial probes,R-CQD extends live cell imaging time by at least 9-fold,facilitating the study of LD behavioral characteristics under diverse physiological or pathological *** work provides a reliable fluorescence tool for tracking intercellular microenvironment dynamically thus to understand the divers biological or disease mechanism.

关键词： Carbon quantum dots Solvatochromism Lipid droplet probe Fluorescence imaging Wash-free

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Mild synthesis of ultra-bright carbon dots with solvatochromism for rapid lipid droplet monitoring in varied physiological processes

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Regenerative Biomaterials 2024年第3期3卷 30-42页

作者： Borui Su Dong Gao nini Xin Kai Wu Mei Yang Shichao Jiang Yusheng Zhang Jie Ding Chengheng Wu Jing Sun Dan Wei Hongsong Fan Zhenzhen Guo National Engineering Research Center for Biomaterials College of Biomedical EngineeringSichuan UniversityChengduSichuan 610064China Institute of Regulatory Science for Medical Devices Sichuan UniversityChengduSichuan 610064China Department of Gastroenterology Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610o72China

Lipid droplets(LDs)participating in various cellular activities and are increasingly being *** imaging provides powerful tool for dynamic tracking of LDs,however,most current LDs probes remain inconsistent performance such as low Photoluminescence Quantum Yield(PLQY),poor photostability and tedious washing ***,a novel yellow-emissive carbon dot(oT-cD)has been synthesized conveniently with high PLQY up to 90%.Besides,oT-CD exhibits remarkable amphiphilicity and solvatochromic property with lipid-water partition coefficient higher than 2,which is much higher than most LDs *** characters enable oT-CD high brightness,stable and wash-free LDs probing,and feasible for in vivo ***,detailed observation of LDs morphological and polarity variation dynamically in different cellular states were recorded,including ferroptosis and other diseases ***,fast whole imaging of zebrafish and identifed LD enrichment in injured liver indicate its further feasibility for in vivo *** contrast to the reported studies to date,this approach provides a versatile conventional synthesis system for high-performance LDs targeting probes,combing the advantages of easy and high-yield production,as well as robust brightness and stability for long-term imaging,facilitating investigations into organelle interactions and LD-associated diseases.

关键词： lipid droplet probe carbon dots fluorescence imaging wash-free dynamic monitoring

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两宋赴任序的内在转向与文体特征

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复旦学报（社会科学版） 2024年第1期66卷 91-101页

作者：孔妮妮上海师范大学人文学院上海200234

赴任序是赠序的重要组成部分。早期的赴任序多为饯别宴集诗序,为赴任者美德业、延声誉。北宋时期,古文倡导者秉承“文以明道”的宗旨创作赴任序,不仅展现了士大夫对时政的关注,也使政论化与义理化的创作范式日趋成熟。随着理学影响的深... 详细信息

赴任序是赠序的重要组成部分。早期的赴任序多为饯别宴集诗序,为赴任者美德业、延声誉。北宋时期,古文倡导者秉承“文以明道”的宗旨创作赴任序,不仅展现了士大夫对时政的关注,也使政论化与义理化的创作范式日趋成熟。随着理学影响的深入,南宋诸儒将修己与治道紧密结合,儒学价值观被建构为政治伦理贯穿于赴任序创作中,成为宋型文化内在转向的时代书写。在创作艺术上,叙议并存的双重文体特征使赴任序更易于吸纳多样化的表现手法,展现宋代士人的政治理想和精神风貌,从而使赴任序的思想内容不断深化、艺术形式更为丰富。

关键词：宋代赴任序内省书写叙议并存

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国产官能化溶聚丁苯橡胶BF2055M混炼胶性能研究

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石油化工 2024年第4期53卷 538-544页

作者：王妮妮中国石化北京化工研究院燕山分院橡塑新型材料合成国家工程研究中心北京102500

官能化溶聚丁苯橡胶(SSBR)在绿色高性能轮胎领域应用广泛,且牌号众多,选择三种在国内轮胎行业应用较多的进口官能化SSBR与国产官能化SSBR BF2055M进行综合性能比较。实验结果表明,SSBR BF2055M与进口SSBR相比,具有良好的白炭黑分散性、... 详细信息

官能化溶聚丁苯橡胶(SSBR)在绿色高性能轮胎领域应用广泛,且牌号众多,选择三种在国内轮胎行业应用较多的进口官能化SSBR与国产官能化SSBR BF2055M进行综合性能比较。实验结果表明,SSBR BF2055M与进口SSBR相比,具有良好的白炭黑分散性、与白炭黑的亲和性、加工安全性,硫化速率快;硫化胶的定伸应力大、回弹性好、拉伸强度较高、压缩温升较低;具有更好的高抗湿滑性能和低滚动阻力性能的平衡性,能够给轮胎提供更好的驾驶安全性和节油性,适用于城市路面的四季胎。在胎面胶的配方开发上建议复配天然橡胶以提高硫化胶的耐磨性。

关键词：官能化溶聚丁苯橡胶白炭黑抗湿滑性能滚动阻力耐磨性

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活动名称发射火箭

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中国科技教育 2024年第3期 49-50页

作者： nini

休斯敦，我们起飞了！本次实验是一项非常有趣的活动，它会将你常去的活动场地变成一个火箭发射场。注意事项本实验活动需要锯断PVC管，需要成年人协助，因需要到户外活动，应注意防晒并请成年人监督实验。发射火箭时，仅需用一只脚向...

休斯敦，我们起飞了！本次实验是一项非常有趣的活动，它会将你常去的活动场地变成一个火箭发射场。注意事项本实验活动需要锯断PVC管，需要成年人协助，因需要到户外活动，应注意防晒并请成年人监督实验。发射火箭时，仅需用一只脚向下踩踏塑料瓶，并确保火箭附近没有人后再发射。实验条件及材料

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活动名称如何解决基于网格的逻辑谜题

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中国科技教育 2024年第8期 49-50页

作者： nini

要想解决这些基于网格的逻辑谜题需要有像福尔摩斯一样的推理能力。本次实验活动将带你学习解决这些棘手谜题的基础知识。活动名称实验条件及材料●铅笔●纸●一些逻辑谜题●打印机(可选)逻辑问题这是一个基于网格的逻辑谜题例子,由3个... 详细信息

要想解决这些基于网格的逻辑谜题需要有像福尔摩斯一样的推理能力。本次实验活动将带你学习解决这些棘手谜题的基础知识。活动名称实验条件及材料●铅笔●纸●一些逻辑谜题●打印机(可选)逻辑问题这是一个基于网格的逻辑谜题例子,由3个部分组成:1个故事、1组线索和1个网格。

关键词：福尔摩斯推理能力基础知识打印机逻辑谜题名称

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活动名称有趣的欧不裂

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中国科技教育 2024年第6期 49-50页

作者： nini

让我们一起来制作有趣的欧不裂（oobleck）吧，这是一种既可以是液体又可以是固体的神奇黏液！实验条件及材料一个大容器3/4杯水1.5杯玉米淀粉量杯食用色素勺子活动步骤(1)量3/4杯水并将其倒入碗中（图1）；在水中加入一些食用色素，让...

让我们一起来制作有趣的欧不裂（oobleck）吧，这是一种既可以是液体又可以是固体的神奇黏液！实验条件及材料一个大容器3/4杯水1.5杯玉米淀粉量杯食用色素勺子活动步骤(1)量3/4杯水并将其倒入碗中（图1）；在水中加入一些食用色素，让欧不裂呈现出有趣的颜色（图2）；再将1.5杯的玉米淀粉加入调好颜色的水中（图3）。

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活动名称倾斜的火焰

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中国科技教育 2024年第9期 49-50页

作者： nini

如果你不小心地移动杯子，杯子里的水就会晃来晃去。那么火呢？让我们看看会发生什么！注意事项本次活动会使用火，请成年人协助实验。禁止在禁火令期间开展此活动。如果你不小心被烫伤，请吹灭蜡烛，并将烫伤处放在冷水下冲洗20分钟。

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