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婴幼儿短纯音听性脑干反应阈预测模型研究

中华耳科学杂志 2024年第4期22卷 562-566页

作者：马孝宝沈佳丽汪玮孙进王璐贺宽杨军陈向平陈建勇上海交通大学医学院附属新华医院耳鼻咽喉头颈外科上海200092 上海交通大学医学院耳科学研究所、上海市耳鼻疾病转化医学重点实验室

目的通过短声听性脑干反应阈(click auditory brainstem responses,c-ABR)及500 Hz短纯音听性脑干反应阈(500 Hz-tone burst ABR,tb-500 Hz),预测tb-1000 Hz、tb-2.00 Hz及tb-4000 Hz的反应阈,为临床婴幼儿tb-ABR反应阈预估及测试组合提供参考。方法选取65例(118耳)婴幼儿作为研究对象,年龄分布在2.36月龄,平均月龄13.9±2.8月。分别进行c-ABR、tb-500 Hz、tb-1000 Hz、tb-2.00 Hz、tb-4000 Hz反应阈测试。随机选取60耳以tb-500 Hz和c-ABR反应阈建立预测tb-1000 Hz、tb-2.00 Hz、tb-4000 Hz反应阈的多元线性回归方程,余58耳使用配对t检验和Bland-Altman法验证方程预测值与实际所测得的tb-1000 Hz、tb-2.00 Hz、tb-4000 Hz反应阈的关系。结果tb-1000 Hz、tb-2.00 Hz和tb-4000 Hz三组多元线性回归方程分别为:Y1=1.698+0.578X_(1)+0.382._(2.,R^(2.=0.92.,P2.1.814+0.2.0X_(1)+0.72.X_(2.,R^(2.=0.933,P2.,R^(2.=0.92.,P2.1),tb-2.00 Hz和tb-4000 Hz实测值与方程预测值差异存在统计学意义(P=0.006,P=0.008)。Bland-Altman法显示三组实测值与方程预测值差值超出95%一致限(limits of agreement,LoA)的95%置信区间(confidence interval,CI)均2.00 Hz、tb-4000 Hz反应阈,快速获得受试儿各频率反应阈,节省测试时间。临床诊断时,可优先组合c-ABR和tb-500 Hz反应阈,若条件允许,可进一步完成tb-1000 Hz、tb-2.00 Hz和tb-4000 Hz的反应阈测试。

关键词：婴幼儿短纯音听性脑干反应阈预测模型

An asymmetric A-D-π-A type non-fullerene acceptor enables high-detectivity near-infrared organic photodiodes

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Science China Chemistry 2023年第1期66卷 242-250页

作者： Ziping Zhong Xin Liu Ling Li Zeyao Han Yin He xiaobao Xu Jiefeng Hai Rihong Zhu Jiangsheng Yu School of Electronic and Optical Engineering Nanjing University of Science and TechnologyNanjing 210094China College of Chemistry and Bioengineering Guilin University of TechnologyGuilin 541004China School of Material Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China

Narrow bandgap non-fullerene acceptors(NFAs)are relevant as key materials components for the fabrication of near-infrared(NIR)organic solar cells(OSCs)and organic photodiodes(OPDs)thanks to their complementary absorption,tunable energy levels,and enhanced ***,high-performance NIR photodetectors are still scarce due to the absence of narrow bandgap ***,an asymmetric A-D-π-A type NFA,named ABTPV-S,with a broad optical absorption approaching 1,000 nm is designed and synthesized through integrating alkylthio side chains and a vinyleneπ-*** optimal inverted OPD device exhibits an excellent performance with a photoresponsivity of 0.39 AW-1,a noise current of 2.2.×10^(-14)A Hz^(-0.5),a specific detectivity(D*)of 3.43×10^(12.Jones at 840 nm,and linear dynamic range(LDR)of 140 d *** addition,the rise and fall times for ABTPV-S-based OPDs also reach 1.07 and 0.71μs,***-S-based OPDs exhibit a high D*over 1012.ones at 950 nm,which is a competitive result for the self-powered photodiode-type NIR *** findings highlight the outstanding potential of asymmetric A-D-π-A type NIR NFAs for high-performance OPDs competing with their silicon counterparts.

关键词： asymmetric non-fullerene acceptor high-detectivity near-infrared organic solar cells organic photodiodes

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伊朗荒漠区常见植物及其分布类型

防护林科技 2024年第3期 81-82页

作者：万翔刘海洲杨晓宝魏从乐甘肃民勤荒漠草地生态系统国家野外科学观测研究站甘肃兰州730070 甘肃省森林防火预警监测信息中心甘肃兰州730000 甘肃民勤连古城国家级自然保护区管护中心甘肃武威733399 甘肃省迭部生态建设管护中心甘肃甘南730010

为了解伊朗沙漠植物的分布,通过对文献及调查资料的分析,介绍了2.科51种伊朗沙区植物,主要植物包括:含羞草科12.(2.%)、藜科7种(14%)、蓼科5种(10%);高位芽植物占80%,其次是地上芽植物和地面芽植物。根据植物地理分布类型划分为:撒哈... 详细信息

为了解伊朗沙漠植物的分布,通过对文献及调查资料的分析,介绍了2.科51种伊朗沙区植物,主要植物包括:含羞草科12.(2.%)、藜科7种(14%)、蓼科5种(10%);高位芽植物占80%,其次是地上芽植物和地面芽植物。根据植物地理分布类型划分为:撒哈拉辛姜(SS)植物种,占62.(31种);伊朗图兰(IT)植物种,占14%(7种);IT—SS植物种,占12.(6种)。在伊朗沙区以相思树属和梭梭属植物为优选植物,梭梭属和沙拐枣属植物可作为我国沙漠地区潜在引种植物。

关键词：伊朗荒漠区常见植物引种植物

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Alternate redox electrolytes in dye-sensitized solar cells

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Chinese Science Bulletin 2012年第32期57卷 4131-4142页

作者： LU JianFeng BAI Jie XU xiaobao LI ZhiHong CAO Kun CUI Jin WANG MingKui Michael Griitzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China

Dye-sensitized mesoscopic solar cell(DSC) has been intensively investigated as a promising photovoltaic *** electrolyte is important to determine the photovoltaic(PV) performance of the DSC devices,which has become the focus of this *** this contribution,recent advances in understanding and controlling of various redox couples are ***,we extend our discussion on the trends that enable iodide-free redox couples to be controllable and feasible for applications in the DSC with promising features.

关键词：染料敏化太阳能电池氧化还原电对电解光伏电池 DSC

Critical tectonic events and their geological controls on deep buried coalbed methane accumulation in Daning-Jixian Block, eastern Ordos Basin

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Frontiers of Earth Science 2023年第1期17卷 197-217页

作者： Taotao YAN Shan HE Shuai ZHENG Yadong BAI Wei CHEN Yanjun MENG Shangwen JIN Huifang YAO xiaobao JIA College of Mining Engineering Taiyuan University of TechnologyTaiyuan 030024China Coal Reservoir Laboratory of National Engineering Research Center of CBM Development&Utilization China University of GeosciencesBeijing 100083China Shanxi CBM Exploration and Development Branch PetroChina Huabei Oilfield CompanyChangzhi 046000China China Coal Geology Group Co. LtdBeijing 100083China Research Institute of Petroleum Exploration and Development-Northwest PetroChinaLanzhou 730000China Beijing Furuibao Energy Technology Company Beijing 100176China Shanxi Province 148 Ecological Geology Technology Co. LtdTaiyuan 030053China

Commercial exploration and development of deep buried coalbed methane (CBM) in Daning-Jixian Block, eastern margin of Ordos Basin, have rapidly increased in recent decades. Gas content, saturation and well productivity show significant heterogeneity in this area. To better understand the geological controlling mechanism on gas distribution heterogeneity, the burial history, hydrocarbon generation history and tectonic evolution history were studied by numerical simulation and experimental simulation, which could provide guidance for further development of CBM in this area. The burial history of coal reservoir can be classified into six stages, i.e., shallowly buried stage, deeply burial stage, uplifting stage, short-term tectonic subsidence stage, large-scale uplifting stage, sustaining uplifting and structural inversion stage. The organic matter in coal reservoir experienced twice hydrocarbon generation. Primary and secondary hydrocarbon generation processes were formed by the Early and Middle Triassic plutonic metamorphism and Early Cretaceous regional magmatic thermal metamorphism, respectively. Five critical tectonic events of the Indosinian, Yanshanian and Himalayan orogenies affect different stages of the CBM reservoir accumulation process. The Indosinian orogeny mainly controls the primary CBM generation. The Yanshanian Orogeny dominates the second gas generation and migration processes. The Himalayan orogeny mainly affects the gas dissipation process and current CBM distribution heterogeneity.

关键词： deep buried coalbed methane coal reservoir accumulation evolution numerical simulation Daning-Jixian Block

建筑环境对电动汽车出行需求影响的空间异质性

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综合运输 2024年第1期46卷 64-70页

作者：冀字超杨小宝崔鹏飞霍正琦北京交通大学系统科学学院北京100044

汽车出行需求模式分析受到越来越多的关注,然而对私人电动汽车的出行需求模式的了解有限。本文基于北京市2.2.年2.份私人电动汽车海量出行数据和POI数据,构建普通最小二乘回归(OLS)模型和地理加权回归(GWR)模型研究建筑环境与电动汽车... 详细信息

汽车出行需求模式分析受到越来越多的关注,然而对私人电动汽车的出行需求模式的了解有限。本文基于北京市2.2.年2.份私人电动汽车海量出行数据和POI数据,构建普通最小二乘回归(OLS)模型和地理加权回归(GWR)模型研究建筑环境与电动汽车出行需求之间的关联关系。结果表明,与OLS模型相比,工作日和非工作日GWR模型的Adjusted R^(2.值分别提升了18.8%与2..6%;建筑环境变量对电动汽车出行需求的影响具有显著的空间异质性,高密度的工作场所及城市核心区的住宅会促进电动汽车出行需求的产生,而位于郊区的住宅类因素对电动汽车出行则起到了抑制作用。研究结果可以为城市交通需求管理和充电基础设施规划提供基础支撑。

关键词：电动汽车建筑环境出行需求空间异质性地理加权回归

High Efficiency and Anomalous Photoacoustic Behavior in Vertical CNTs Array

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Energy & Environmental Materials 2023年第1期6卷 105-110页

作者： Jiapu Li Ziyu Wang Laiming Jiang Zechuan Yu Xu Ge Jun Ouyang Xiaofei Yang xiaobao Tian He Tian Benpeng Zhu School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China College of Materials Science and Engineering Sichuan UniversityChengdu 610064China School of Civil Engineering and Architecture Wuhan University of TechnologyWuhan 430070China Department of Mechanics Sichuan UniversityChengdu 610065China Institute of Microelectronics and Beijing National Research Center for Information Science and Technology(BNRist) Tsinghua UniversityBeijing 100084China

Miniaturized sound generators are attractive to realize intriguing *** device’s application is seriously limited due to the frequency-doubling *** address this issue,photoacoustic sound generator is considered as a promising ***,based on vertical single-wall carbon nanotubes(CNTs)array,we introduce a photoacoustic sound generator with internal nano-Helmholtz *** from traditional device that generates sound by periodically heating up the open space air around material,this sound generator produces an audio signal by forming a forced vibration of the air inside the ***,anomalous photoacoustic behavior is observed that the sound pressure level(SPL)curve has a resonance peak,the corresponding frequency of which is inversely proportional to the CNTs array’s ***,the energy conversion efficiency of this photoacoustic device is 1.64 times as large as that of a graphene sponge-based photoacoustic *** importantly,this device can be employed for music playing,bringing a new clew for the development of musical instruments in the future.

关键词： anomalous photoacoustic behavior CNTs array Nano-Helmholtz Cavity photoacoustic sound generator

基于LSTM的溶解氧滚动预报预警平台构建——以珠江三角洲典型河段为例

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环境保护科学 2024年第5期50卷 163-169页

作者：胡艳芳陈昭婷赵长进李小宝胡浩锋生态环境部华南环境科学研究所广州510655

溶解氧是衡量水环境质量的综合性指标,也是近几年影响珠三角水环境质量达标的关键因子之一,实现对溶解氧的准确预测并嵌入到环境决策支持系统,对于区域水环境管理工作意义重大。考虑到传统的机理模型计算复杂,需要的数据获取难度大,对... 详细信息

溶解氧是衡量水环境质量的综合性指标,也是近几年影响珠三角水环境质量达标的关键因子之一,实现对溶解氧的准确预测并嵌入到环境决策支持系统,对于区域水环境管理工作意义重大。考虑到传统的机理模型计算复杂,需要的数据获取难度大,对于大数据时代下智能化的水质预测问题并不适用,因此利用断面自动站连续观测数据构建了长短时记忆网络(LSTM)模型,实现了对珠三角典型河段溶解氧的滚动预测,并按照数据层、应用层和表现层的规范设计研发了珠江三角洲典型河段溶解氧滚动预报预警平台。该平台能够直观、实时、动态展示珠三角溶解氧时空变化,并基于溶解氧预测结果进行分级预警,将为区域水环境管理提供科学有效的技术支撑。

关键词：环境决策支持系统溶解氧滚动预报 LSTM 珠三角

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轻量化装配式大型多通电缆工作井研究

特种结构 2024年第4期41卷 21-26页

作者：刘亚东于文洪王传宇赵丛温晓宝黑龙江华装清配建筑科技有限公司黑龙江省建设科创投资有限公司上海中森建筑与工程设计顾问有限公司中国能源建设集团辽宁电力勘测设计院有限公司

本文介绍了一种新型轻量化装配式多通电缆工作井,具有可工厂化生产、质量好、重量轻、环保优、低成本等优点,解决了现有装配式技术支模复杂、混凝土浇筑困难、不便生产、运输、安装的问题,实现了标准化、小型化预制多通井构件的全干法... 详细信息

本文介绍了一种新型轻量化装配式多通电缆工作井,具有可工厂化生产、质量好、重量轻、环保优、低成本等优点,解决了现有装配式技术支模复杂、混凝土浇筑困难、不便生产、运输、安装的问题,实现了标准化、小型化预制多通井构件的全干法快速拼装。通过有限元分析,轻量化多通电缆工作井可满足工程使用要求,在江阴市10kV澄华线和黄观线路迁改等多个项目实践中取得了良好的应用效果,该技术可供其他同类工程参考。

关键词：电缆工作井装配式轻量化有限元分析反应位移法