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Chinese Journal of Polymer Science 2024年第7期42卷 976-983,I0009页

作者： yiting zhang Jiahui Sun Yufeng Wang Yunchen Wu Chun Huang Chao zhang Tianxi Liu Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material EngineeringJiangnan UniversityWuxi214122China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China

Passive daytime radiative cooling(PDRC)is an innovative and sustainable cooling technology that holds immense potential for addressing the energy *** the numerous reports on radiative coolers,the design of a straightforward,efficient,and readily producible system remains a ***,we present the development of a hierarchical aligned porous poly(vinylidene fluoride)(HAP-PVDF)film through a freeze-thaw-promoted nonsolvent-induced phase separation *** film features oriented microporous arrays in conjunction with random nanopores,enabling efficient radiative cooling performance under direct sunlight *** incorporation of both micro-and nano-pores in the HAP-PVDF film results in a remarkable solar reflectance of 97%and a sufficiently high infrared thermal emissivity of 96%,facilitating sub-environmental cooling at 18.3℃ on sunny days and 13.1℃ on cloudy ***,the HAP-PVDF film also exhibits exceptional flexibility and *** calculations further confirm a radiative cooling power of 94.8 W·m^(-2)under a solar intensity of 1000W·m^(-2),demonstrating a performance comparable to the majority of reported radiative coolers.

关键词： Daytime radiative cooling Hierarchical porosity PVDF porous film Thermal insulation Nonsolvent-induced phase separation

On the role of sliding friction effect in nonlinear tri-hybrid vibration-based energy harvesting

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Applied Mathematics and Mechanics(English Edition) 2024年第8期45卷 1295-1314页

作者： Jiamei WANG Siukai LAI Chen WANG yiting zhang Zhaolin CHEN Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057Guangdong ProvinceChina Hebei Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures Yanshan UniversityQinghuangdao 066000Hebei ProvinceChina School of Aeronautics Northwestern Polytechnical UniversityXi'an 710072China

This work aims to develop an experimental investigation into the effectiveness of the sliding-mode approach for hybrid vibration-based energy harvesting.A proposed sliding-mode triboelectric-electromagnetic-piezoelectric energy harvesting model involves a cantilever beam with a tip mass exposed to magnetic and frictional *** experimental findings indicate that the system can achieve its peak inter-well oscillation output within a low-frequency range of 4 Hz–6 *** has a lesser impact on the open-circuit voltage output at an excitation acceleration of 1.5g compared with *** distribution of tri-stability changes with the presence of *** model provides a deeper understanding of the influence of the dry friction coefficient(0.2–0.5) on the interactive behaviors of different generator units.

关键词： sliding mode tri-hybrid energy harvesting friction nonlinear behavior

Characteristics and genesis of tuffaceous shale oil lithofacies:A case study of Lucaogou Formation in Santanghu Basin

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Petroleum Research 2024年第1期9卷 37-47页

作者： Dongsheng Xiao Xiong fei Xu Jilun Kang yiting zhang PetroChina Tuha Oilfield Company Exploration and Development Research Institute China

Lucaogou Formation in the Santanghu Basin is a special lacustrine fine-grained sedimentary deposits rich in volcanic debris and carbonate,with abundant shale oil ***,understanding of shale oil characteristics and genesis remains ***,sedimentary environment,and formation mechanisms of tuffaceous shale oil are investigated based on core and thin section observations,X-ray diffraction,field emission SEM and geochemical *** show that three mixed lithofacies types are developed in Lucaogou Formation:blocky tuff,laminated tuffaceous dolomite,and laminated dolomitic *** lithofacies types are characterized by high content of felsic and dolostone,widespread organic matter,and low clay *** of tuffaceous shale oil sweet spots is primarily influenced by four factors:inputting of volcanic ash as a high-quality source rocks and reservoirs provides good material basis;devitrification of volcanic glass,calcitization,and dissolution are crucial for formation of reservoirs;expulsion of source rocks with high-abundance organic matter expulsion facilitates migration and accumulation of hydrocarbon in adjacent reservoirs;fracture development improves reservoir permeability to form highly productive sweet *** analyzing characteristics and genesis of tuffaceous shale oil,the main controlling factors of reservoir physical property and oil saturation are clarified,which is of great significance for selection of shale oil exploration zones.

关键词： shale oil Tuffaceous Formation mechanism Lucaogou formation Santanghu basin

Occurrence of viable but non-culturable(VBNC)pathogenic bacteria in tap water of public places

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Frontiers of Environmental Science & Engineering 2024年第3期18卷 115-129页

作者： Lizheng Guo Xinyan Xiao Kassim Chabi yiting zhang Jingjing Li Su Yao Xin Yu China National Research Institute of Food and Fermentation Industries Co. Ltd.China Center of Industrial Culture CollectionBeijing 100015China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China College of Environment&Ecology Xiamen UniversityXiamen 361102China

Viable but non-culturable(VBNC)bacteria have been detected in source water and effluent of drinking water treatment processes,leading to significant underestimation of viable cell *** information exists on VBNC bacteria in tap water,particularly in public *** address this gap,a comprehensive nine-month study was conducted in a major city in south-eastern China,using culture-based and quantitative PCR with propidium monoazide(PMA)dye ***-five samples were collected from five representative public places(railway station,campus,hospital,shopping mall,and institution).The findings revealed that culturable bacteria represented only 0–17.51%of the viable 16S rRNA genes,suggesting that the majority of viable bacteria existed in an uncultured or VBNC ***,opportunistic pathogens such as Escherichia coli,Enterococcus faecalis,Pseudomonas aeruginosa,Salmonella sp.,and Shigella *** primarily detected as VBNC cells,with concentrations ranging from 1.03×10^(0)to 3.01×10^(3),1.20×10^(0)to 1.42×10^(2),1.32×10^(0)to 8.82×10^(0),1.00×10^(0)to 6.71×10^(1),and 2.07×10^(0)to 1.93×10^(2)cell equivalent/100 mL,*** *** was observed in tap water after prolonged stagnation,indicating potential risks associated with bacterial *** and temporal factors accounted for 17.1%and 26.0%,respectively,of the variation in tap water community structure during the sampling period,as revealed by 16S rRNA amplicon *** study provides quantitative insights into the occurrence of VBNC bacteria in tap water and highlights the need for more sensitive monitoring methods and microbial control techniques to enhance tap water safety in public locations.

关键词： VBNC Pathogenic bacteria PMA treatment Public tap water Community structure

SMAD7 expression in CAR-T cells improves persistence and safety for solid tumors

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Cellular & Molecular Immunology 2024年第3期21卷 213-226页

作者： Sixin Liang Rui Zheng Baile Zuo Jia Li Yiyi Wang Yujie Han Hao Dong Xiaojuan Zhao yiting zhang Pengju Wang Ruotong Meng Lintao Jia Angang Yang Bo Yan State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers Department of Biochemistry and Molecular BiologyFourth Military Medical UniversityXi’anShaanxi710032China School of Medicine Technology Xinxiang Medical UniversityXinxiangHenan453003China Department of Obstetrics and Gynecology Xijing Hospital of Fourth Military Medical UniversityXi’anShaanxi710032China College of Life Science Yan’an UniversityYan’anShaanxi716000China Department of Immunology Fourth Military Medical UniversityXi’anShaanxi710032China

Despite the tremendous progress of chimeric antigen receptor T(CAR-T)cell therapy in hematological malignancies,their application in solid tumors has been limited largely due to T-cell exhaustion in the tumor microenvironment(TME)and systemic toxicity caused by excessive cytokine *** a key regulator of the immunosuppressive TME,TGF-βpromotes cytokine synthesis via the NF-κB ***,we coexpressed SMAD7,a suppressor of TGF-βsignaling,with a HER2-targeted CAR in engineered T *** novel CAR-T cells displayed high cytolytic efficacy and were resistant to TGF-β-triggered exhaustion,which enabled sustained tumoricidal capacity after continuous antigen ***,SMAD7 substantially reduced the production of inflammatory cytokines by antigen-primed CAR-T ***,SMAD7 downregulated TGF-βreceptor I and abrogated the interplay between the TGF-βand NF-κB pathways in CAR-T *** a result,these CAR-T cells persistently inhibited tumor growth and promoted the survival of tumor-challenged mice regardless of the hostile tumor microenvironment caused by a high concentration of TGF-β.SMAD7 coexpression also enhanced CAR-T-cell infiltration and persistent activation in patient-derived tumor ***,our study demonstrated the feasibility of SMAD7 coexpression as a novel approach to improve the efficacy and safety of CAR-T-cell therapy for solid tumors.

关键词： TGF-βpathway SMAD7 NF-κB pathway CAR-T-cell therapy Cytokine release syndrome(CRS)

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基于合作关系的多智能体数据库参数调优模型

无线电通信技术 2024年第5期50卷 1037-1045页

作者：刘钊勇张艺婷四川化工职业技术学院数字经济学院四川泸州646300 四川师范大学可视化计算与虚拟现实四川省重点实验室四川成都610068 四川化工职业技术学院基础教学部四川泸州646300

高维数据库参数空间中的参数调优是提高数据库性能的难点,现有方法更多关注于如何识别重要参数,在如何有效提高可调参数数量的问题上仍存在不足。针对上述问题,基于低维度映射技术和多智能体(Multi-Agent)强化学习技术,提出基于合作关系... 详细信息

高维数据库参数空间中的参数调优是提高数据库性能的难点,现有方法更多关注于如何识别重要参数,在如何有效提高可调参数数量的问题上仍存在不足。针对上述问题,基于低维度映射技术和多智能体(Multi-Agent)强化学习技术,提出基于合作关系的Multi-Agent数据库参数调优(Cooperative Multi-Agent Database Parameter Tuning,CMADPT)模型,CMADPT将数据库参数进行分类调优,极大增加了可调参数的数量;提出基于低维度映射的降维模型(Low Dimensional Mapping Model,LDMM),通过低维的合成参数调优高维的数据库参数。实验结果表明,CMADPT模型有效地扩大了可调参数的数量,比主流方法平均提升1.117%的数据库性能。此外,CMADPT每300次迭代训练平均节省1.32 h,极大地提升了算法的时间性能。

关键词：数据库参数调优合作关系深度强化学习多智能体

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成人术前咀嚼口香糖的研究进展

护理学杂志 2024年第12期39卷 121-125页

作者：张艺亭王功朝山东第一医科大学(山东省医学科学院)护理学院山东泰安271000 山东第一医科大学附属省立医院胸外科山东大学护理与康复学院

综述咀嚼口香糖在成人择期手术前的应用现状,包括咀嚼口香糖的作用原理、在成人术前临床中的应用效果及安全性,以期未来能作为科学有效的护理干预方式广泛应用于临床。

关键词：成人患者围术期术前护理咀嚼口香糖术后康复快速康复外科综述文献

“坚持胸怀天下”对高校思想政治教育的价值探析

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重庆电力高等专科学校学报 2024年第3期29卷 57-61页

作者：张亦婷长江大学马克思主义学院湖北荆州434023

胸怀天下是一种宏观的思维方式和价值观念,可以帮助人们更好地认识世界和改造世界。党的二十大报告中将“坚持胸怀天下”第一次总结为习近平新时代中国特色社会主义思想的世界观和方法论,并写入党的重要文件中,指明了在各项工作中坚持... 详细信息

胸怀天下是一种宏观的思维方式和价值观念,可以帮助人们更好地认识世界和改造世界。党的二十大报告中将“坚持胸怀天下”第一次总结为习近平新时代中国特色社会主义思想的世界观和方法论,并写入党的重要文件中,指明了在各项工作中坚持胸怀天下的重要性。“坚持胸怀天下”是“两个结合”的理论产物,其中蕴含的哲学意蕴对新时代高校思想政治教育的发展起到了重要的引领作用。因此,从世界观、方法论与价值观三重维度出发,深入分析“坚持胸怀天下”为办好思想政治教育、促进高校立德树人工作贡献的新视角、新方法与新使命,有利于提高高校思想政治教育工作水平与实效。

关键词：坚持胸怀天下思想政治教育高校引领价值

基于绩效测度的充电桩基础设施PPP项目补贴模型研究

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管理工程学报 2024年第5期38卷 221-234页

作者：张逸婷王雪青马睿刘云峰王丹天津大学管理与经济学部天津300072 重庆大学公共管理学院重庆400044

随着电动汽车的发展,充电桩基础设施建设愈加重要。然而投资回收期长、发展期需求波动大、补贴政策滞后等问题导致其建设增速不足。本文基于Stackelberg博弈,构建了PPP模式下充电桩基础设施项目公私双方的双层规划补贴模型,并采用逆向... 详细信息

随着电动汽车的发展,充电桩基础设施建设愈加重要。然而投资回收期长、发展期需求波动大、补贴政策滞后等问题导致其建设增速不足。本文基于Stackelberg博弈,构建了PPP模式下充电桩基础设施项目公私双方的双层规划补贴模型,并采用逆向归纳法求解,探究政府给予社会资本方的最优补贴计划及其性质。结果表明:(1)相较于无补偿的情形,当政府的激励效应较强时,社会资本方的努力水平明显提高,且政府补贴会对社会福利产生明显影响;(2)政府方根据项目绩效对PPP项目进行补贴时应该考虑社会资本方的努力成本和充电桩的价格系数;(3)政府方应考虑需求量风险因素,并控制需求量变化在适宜范围内,以改善社会福利;(4)当存在政府财政约束和社会资本方收益约束时,若不能实现最优补贴方案,则政府需要增加补贴并调整绩效激励系数,以实现社会福利最大化目标。本文为政府制定充电桩基础设施PPP项目补贴政策提供了参考性建议,有利于推进充电桩基础设施建设的可持续发展。

关键词： PPP模式充电桩基础设施政府补贴 Stackelberg博弈

家长数学教育观念与幼儿数学过程性能力的关系:亲子数学活动的中介作用

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学前教育研究 2024年第7期 49-65页

作者：李娟邓雪纯王舒琦张依婷温州大学教育学院温州325000

家长数学教育观念与亲子数学活动对幼儿数学过程性能力的发展有非常重要的影响。为讨论家长数学教育观念、亲子数学活动、幼儿数学过程性能力三者之间的关系,本研究从浙江省W市3所幼儿园抽取280名大班幼儿及父母作为被试,采用家长数学... 详细信息

家长数学教育观念与亲子数学活动对幼儿数学过程性能力的发展有非常重要的影响。为讨论家长数学教育观念、亲子数学活动、幼儿数学过程性能力三者之间的关系,本研究从浙江省W市3所幼儿园抽取280名大班幼儿及父母作为被试,采用家长数学教育观念量表、亲子数学活动问卷和幼儿数学过程性能力检核表来考察家长数学教育观念和亲子数学活动对幼儿数学过程性能力发展的影响,并分析亲子数学活动的中介作用。结果显示,家长数学教育观念、亲子数学活动和幼儿数学过程性能力基本处于中等水平。家长数学教育观念、亲子数学活动和幼儿数学过程性能力三者之间呈显著正相关关系。家长数学教育观念和亲子数学活动均能显著正向预测幼儿数学过程性能力的发展。亲子数学活动在家长数学教育观念与幼儿数学过程性能力之间起部分中介作用,其中:示范式教导对幼儿数学推理与验证能力以及数学关联能力起完全中介作用;对话式教导对幼儿数学关联能力起完全中介作用;游戏式教导对幼儿数学推理与验证能力起部分中介作用,对数学关联能力起完全中介作用;直接式教导的中介效应不显著。家长可从树立建构型教育观念、提高亲子活动水平、采用不同亲子活动方式、重视幼儿非智力因素等方面来发展幼儿的数学过程性能力。

关键词：家长数学教育观念数学过程性能力亲子数学活动