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卤化物钙钛矿敏感材料及其气敏传感应用

硅酸盐学报 2024年第1期52卷 292-304页

作者：韩飞王玲玲陈伟胡银章芬邵伟江西省科学院能源研究所南昌330096 江西省科学院应用化学研究所南昌330096 南昌航空大学环境与化学工程学院南昌330063

近年来,卤化物钙钛矿材料的光物理性质被充分研究,因其具有高电子迁移率和双极性电荷传输等特性,在室温气敏传感领域具有广阔的应用前景。本综述介绍了卤化物钙钛矿材料及其气敏传感应用,调研了卤化物钙钛矿气敏传感材料的研究现状,详... 详细信息

近年来,卤化物钙钛矿材料的光物理性质被充分研究,因其具有高电子迁移率和双极性电荷传输等特性,在室温气敏传感领域具有广阔的应用前景。本综述介绍了卤化物钙钛矿材料及其气敏传感应用,调研了卤化物钙钛矿气敏传感材料的研究现状,详细探讨了不同体系卤化物钙钛矿气敏传感器在NO_(x)、NH_(3)、H_(2)S、挥发性有机化合物(VOCs)以及其他有毒、有害气体检测方面的性能参数和传感机制,最后展望了卤化物钙钛矿气敏传感器的发展趋势,以期为进一步提高器件性能和拓展器件应用提供参考。

关键词：卤化物钙钛矿传感器气敏性能传感机制

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内蒙古西部地区沥青路面温度场变化规律分析

内蒙古公路与运输 2024年第3期 10-14,36页

作者：邵先胜内蒙古交通设计研究院有限责任公司内蒙古呼和浩特010010

内蒙古西部区域面积大、地理条件复杂、气候条件特殊,对公路沥青路面结构设计有重要影响,为了能真实客观地了解内蒙古西部地区沥青路面结构温度的分布特征及其差异性,研究选择在鄂尔多斯、巴彦淖尔作为观测点埋设温度传感器,持续观测具... 详细信息

内蒙古西部区域面积大、地理条件复杂、气候条件特殊,对公路沥青路面结构设计有重要影响,为了能真实客观地了解内蒙古西部地区沥青路面结构温度的分布特征及其差异性,研究选择在鄂尔多斯、巴彦淖尔作为观测点埋设温度传感器,持续观测具有代表性的夏季和冬季路面结构内部温度。通过对沥青路面结构内部温度实测数据深入分析,得出了路面结构层内的高、低温温度分布规律,基于数据统计回归建立了温度场模型,为内蒙古西部地区路面结构设计提供依据。

关键词：内蒙古西部地区沥青路面温度传感器温度场预估

Model of self-generated magnetic field generation from relativistic laser interaction with solid targets

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Chinese Physics B 2024年第5期33卷 511-517页

作者：严睿邹德滨赵娜杨晓虎蒋祥瑞胡理想徐新荣周泓宇余同普卓红斌邵福球银燕 Northwest Institute of Nuclear Technology Xi'an 710024China Department of Physics National University of Defense TechnologyChangsha 410073China School of Microelectronics and Physics Hunan University of Technology and BusinessChangsha 410205China Department of Nuclear Science and Technology National University of Defense TechnologyChangsha 410073China College of Engineering Physics Shenzhen Technology UniversityShenzhen 518118China

Generation of self-generated annular magnetic fields at the rear side of a solid target driven by relativistic laser pulse is investigated by using theoretical analysis and particle-in-cell *** spatial strength distribution of magnetic fields can be accurately predicted by calculating the net flow caused by the superposition of source flow and return flow of hot *** theoretical model established shows good agreement with the simulation results,indicating that the magnetic-field strength scales positively to the temperature of hot *** provides us a way to improve the magnetic-field generation by using a micro-structured plasma grating in front of the solid *** with that for a common flat target,hot electrons can be effectively heated with the well-designed grating size,leading to a stronger magnetic *** spatial distribution of magnetic fields can be modulated by optimizing the grating period and height as well as the incident angle of the laser pulse.

关键词： self-generated magnetic field laser solid-target interaction micro-structured plasma grating

Syntheses and Configuration Inversion of Substituted Oxazolines

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Chemical Research in Chinese Universities 2001年第3期17卷 271-275页

作者： YANG shao-rong hu Quan-yuan LIU Jun YANG hui hu xian-ming College of Chemistry Wuhan UniversityWuhan 430072P.R.China

The present paper covers the simply and highly stereoselective syntheses of (α-S, 4S)-2-dichloromethyl-4, 5-dihydro-α-(4-nitrophenyl)-4-oxazolemethanol (4a), (α-S, 4S)-2-methyl-4, 5-dihydro-α-(4-nitrophenyl)-4-oxazolemethanol (4b), and (α-R, 4R)-2-dichloromethyl-4, 5-dihydro-α-[(4-methylsulfonyl)phenyl]-4-oxazolemethanol(4c) with good yields(80%—90%). A configuration inversion product, (1R, 2S)-2-dichloroacetamido-1-(4-nitrophenyl)-1, 3-propanediol (8), was obtained during our attempting to convert compound 4a into (4S, 5R)-2-(dichloromethyl)-4, 5-dihydro-5-(4-nitrophenyl)-4-oxazolemethanol(7).

关键词： Oxazoline Heterocyclic Configuration inversion

Non-Hodgkin's lymphoma involving chronic difficult-to-heal wounds:A case report

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World Journal of Clinical Oncology 2024年第8期15卷 1110-1116页

作者： Pei-Shen Zhang Rong Wang hu-Wen Wu Han Zhou Han-Bin Deng Wen-Xuan Fan Jia-Cheng Li shao-Wen Cheng Department of Wound Repair Key Laboratory of Emergency and Trauma of Ministry of EducationThe First Affiliated Hospital of Hainan Medical UniversityHaikou 570102Hainan ProvinceChina

BACKGROUND Non-Hodgkin's lymphoma(NHL)is a malignant tumor that originates from the lymphoid tissues and can potentially affect numerous organs within the *** these,the skin stands out as one of the primary sites affected by NHL,often presenting with multiple extra-nodal *** this report,we present an unusual case of NHL involving chronic wounds in the lower extremities that were difficult to *** scars were successfully treated using radiotherapy in combination with extended excision debridement and peroneal artery perforator flap grafting,resulting in satisfactory *** SUMMARY A 19-year-old male patient presented with ulceration of the skin on the left calf near the ankle accompanied by purulent *** pathologic biopsy confirmed a diagnosis of NHL(extranodal NK/T-cell lymphoma,nasal type).Initial treatment comprised local radiotherapy and wound care;however,the wound exhibited prolonged ***,the patient underwent a series of interventions including radiotherapy,wound enlargement excision debridement,and peroneal artery perforator flap ***,successful healing was achieved with favorable postoperative outcomes characterized by good texture of the flap without any signs of rupture or *** The combination of radiotherapy,wound enlargement excision debridement,and peroneal artery perforator flap grafting may present a favorable treatment modality for chronic non-healing lower leg wounds resulting from NHL.

关键词： Non-Hodgkin's lymphoma Extranodal natural killer/T-cell lymphoma Difficult-to-heal wounds Flap therapy Case report

智慧信息系统在上海市域铁路工程建设中的监管应用

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交通与港航 2024年第S1期11卷 86-89页

作者：胡晛上海市交通建设工程安全质量监督站

随着我国城市化进程的不断加快,城市中人们出行方式的选择也越来越多样化,同时交通领域内部发展也逐渐细分,在满足不同人群出行需求的同时,也更好地串联起城市内部与周边,促进区域协调发展。交通工程建设是交通领域发展的前提,而交通工... 详细信息

随着我国城市化进程的不断加快,城市中人们出行方式的选择也越来越多样化,同时交通领域内部发展也逐渐细分,在满足不同人群出行需求的同时,也更好地串联起城市内部与周边,促进区域协调发展。交通工程建设是交通领域发展的前提,而交通工程的建设具有投资金额大、建设周期长、过程复杂等特点,其中安全质量问题则是交通工程建设过程中的关键。因此,监管部门如何更好地参与到交通工程建设中,如何更准确的发现交通工程建设过程中存在的安全隐患,集中力量整改问题消除隐患,这也是工程建设过程中监管部门需要着重研究的。

关键词：市域铁路工程管理安全质量

Acceptor Engineering Produces Ultrafast Nonradiative Decay in NIR-Ⅱ Aza-BODIPY Nanoparticles for Efficient Osteosarcoma Photothermal Therapy via Concurrent Apoptosis and Pyroptosis

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Research 2024年第1期2024卷 625-635页

作者： Zhenxiong Shi hua Bai Jiaxing Wu Xiaofei Miao Jia Gao xianning Xu Yi Liu Jiamin Jiang Jiaqi Yang Jiaxin Zhang Tao shao Bo Peng huili Ma Dan Zhu Guojing Chen Wenbo hu Lin Li Wei huang Frontiers Science Center for Flexible Electronics Xi’an Institute of Flexible Electronics(IFE)and Xi’an Institute of Biomedical Materials&EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Key Laboratory for Organic Electronics and Information Displays&Institute of Advanced Materials(IAM) Nanjing University of Posts&TelecommunicationsNanjing 210023China Key Laboratory of Flexible Electronics(KLOFE)and IAM Nanjing Tech UniversityNanjing 211800China Britton Chance Center for Biomedical Photonics-MoE Key Laboratory for Biomedical Photonics Wuhan National Laboratory for Optoelectronics-Advanced Biomedical Imaging FacilityHuazhong University of Science and TechnologyWuhan 430074China Department of Orthopedics Xijing HospitalThe Fourth Military Medical UniversityXi’an 710032China The Institute of Flexible Electronics(IFE Future Technologies)Xiamen UniversityXiamen 361005China

Small-molecule photothermal agents(PTAs)with intense second near-infrared(NIR-Ⅱ,1,000 to 1,700 nm)absorption and high photothermal conversion efficiencies(PCEs)are promising candidates for treating deep-seated tumors such as *** date,the development of small-molecule NIR-Ⅱ PTAs has largely relied on fabricating donor–acceptor–donor(D–A–D/D′)structures and limited success has been ***,through acceptor engineering,a donor–acceptor–acceptor(D–A–A′)-structured NIR-Ⅱ aza-boron-dipyrromethene(aza-BODIPY)PTA(SW8)was readily developed for the 1,064-nm laser-mediated phototheranostic treatment of *** the donor groups to acceptor groups produced remarkable red-shifts of absorption maximums from first near-infrared(NIR-Ⅰ)regions(~808 nm)to NIR-Ⅱ ones(~1,064 nm)for aza-BODIPYs(SW1 to SW8).Furthermore,SW8 self-assembled into nanoparticles(SW8@NPs)with intense NIR-Ⅱ absorption and an ultrahigh PCE(75%,1,064 nm).This ultrahigh PCE primarily originated from an additional nonradiative decay pathway,which showed a 100-fold enhanced decay rate compared to that shown by conventional pathways such as internal conversion and vibrational ***,SW8@NPs performed highly efficient 1,064-nm laser-mediated NIR-Ⅱ photothermal therapy of osteosarcoma via concurrent apoptosis and *** work not only illustrates a remote approach for treating deep-seated tumors with high spatiotemporal control but also provides a new strategy for building high-performance small-molecule NIR-Ⅱ PTAs.

关键词： donor BODIPY intense

新时代干部教育培训工作的逻辑必然、核心要义及方法论启示

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南昌工程学院学报 2024年第2期43卷 47-51页

作者：胡显南昌工程学院马克思主义学院江西南昌330099

新时代干部教育培训工作是继承党的优良传统、探索新时代干部成长成才规律和推进中国式现代化建设的必然要求。新时代干部教育培训工作在指导思想、目标任务、培养对象、内容体系、培养过程及保障体系等一系列重大问题上取得了变革性进... 详细信息

新时代干部教育培训工作是继承党的优良传统、探索新时代干部成长成才规律和推进中国式现代化建设的必然要求。新时代干部教育培训工作在指导思想、目标任务、培养对象、内容体系、培养过程及保障体系等一系列重大问题上取得了变革性进展。新时代干部教育培训工作坚持历史思维,在继承优良传统的基础上不断开拓创新;坚持辩证思维,强化问题意识;坚持战略思维,统揽新时代干部教育培训工作全局;坚持创新思维,推动干部教育培训工作高质量发展。

关键词：干部教育培训工作习近平新时代中国特色社会主义思想干部队伍

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竖直互连小通道内流动沸腾传热强化机理分析

中国电机工程学报 2024年第12期44卷 4826-4836,I0018页

作者：周云龙邵文斌李洪伟胡中远东北电力大学能源与动力工程学院吉林省吉林市132012

为推动流动沸腾技术在燃料电池散热领域的应用,该文以R141b为工质,对不同流速下的并联直通道及互连小通道内流动沸腾情况进行三维瞬态数值模拟。利用换热系数、基底温度及综合换热因子等参数对比各结构的换热性能,并探究互连小通道的换... 详细信息

为推动流动沸腾技术在燃料电池散热领域的应用,该文以R141b为工质,对不同流速下的并联直通道及互连小通道内流动沸腾情况进行三维瞬态数值模拟。利用换热系数、基底温度及综合换热因子等参数对比各结构的换热性能,并探究互连小通道的换热强化机理。研究表明:换热趋势随气泡行为呈周期性变化,气泡脱离时的换热效果最佳;由连通口引发的二次流促进热量传递与壁温升高,使通道可提前2 ms满足成核条件,且气泡在10^(-4) m/s以上的二次流速作用下率先脱离;五连通通道的换热系数较并联直通道可提升19.6%~23.3%,继续增加连通口数,换热系数的相对增长率均不足3.5%;涡结构使压降随连通口数增加而增大,且增势并不减弱,八连通通道的压降较并联直通道增加29.5%~42%。可见,二次流在影响气泡行为、强化换热的同时也带来压力损失,综合换热性能与连通口数目不成正相关。

关键词：连通式小通道流动沸腾强化机理数值模拟

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