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Revealing the Unusual Efficiency Enhancement of Organic Solar Cells with Polymer-Donor-Treated Cathode Contacts

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Chinese Journal of Polymer Science 2022年第8期40卷 937-943,I0009页

作者： zesheng liu Yawen li Xiaojun zhao Yufan zhu Yuze lin Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China

The metal oxides with low trap density of states as the electron transport layer are crucial for the high performance of the organic solar cells(OSCs).It is universally acknowledged that modifying n-type metal oxide contacts with polymer donors will harm the carrier extraction on account of the mismatched energy ***,we find that modifying interlayer consisting of the alcohol amines with some polymer donor additive can unusually enhance the performance of the *** with triethanolamine(TEA)passivated znO,TEA:polymer donor treated znO shows lower trap density and enhances electron mobility resulting in higher current density in OSC ***,we reveal that the enhanced oxygen-defect passivation ability of TEA with polymer additive is attributed to the enhanced negative electrostatic potential of TEA owing to the hydrogen bond formation between the polymer and the hydroxyl group in *** strategy that enhancing the negative electrostatic potential of the passivators for improving oxygen defect passivation can be extended to other types of organic electronic devices.

关键词： Organic solar cell Electron transport layer Trap density Passivation Hydrogen bond

Spatial and temporal evolution of electromagnetic pulses from solid target irradiated with multi-hundred-terawatt laser pulse inside target chamber

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Plasma Science and Technology 2024年第2期26卷 62-69页

作者：何强友邓志刚张智猛夏亚东张博孟令彪贺书凯黄华杨雷刘红杰范伟林晨周维民李廷帅颜学庆 State Key Laboratory of Nuclear Physics and Technology and Key Laboratory of HEDP of the Ministry of EducationCAPTPeking UniversityBeijing 100871People's Republic of China Science and Technology on Plasma Physics Laboratory Research Center of Laser FusionChina Academy of Engineering PhysicsMianyang 621900People's Republic of China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731People's Republic of China Beijing Laser Acceleration Innovation Center Beijing 101400People's Republic of China

Giant electromagnetic pulses(EMPs) induced by high-power laser irradiating solid targets interfere with various experimental diagnoses and even damage equipment,so unveiling the evolution of EMPs inside the laser chamber is crucial for designing effective EMP *** this work,the transmission characteristics of EMPs as a function of distances from the target chamber center(TCC) are studied using B-dot *** mean EMP amplitude generated by picosecond laser-target interaction reaches 561 kV m^(-1),357 kV m^(-1),395 kV m^(-1),and 341 kV m^(-1)at 0.32 m,0.53 m,0.76 m,and 1 m from TCC,which decreases dramatically from 0.32 m to 0.53 ***,it shows a fluctuation from 0.53 m to 1 *** temporal features of EMPs indicate that time-domain EMP signals near the target chamber wall have a wider full width at half maximum compared to that close to TCC,mainly due to the echo oscillation of electromagnetic waves inside the target chamber based on simulation and *** conclusions of this study will provide a new approach to mitigate strong electromagnetic pulses by decreasing the echo oscillation of electromagnetic waves inside the target chamber during laser coupling with targets.

关键词： target electromagnetic pulses spatial distribution

药物临床试验培训导入临床药学教学的分析与思考

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临床医学研究与实践 2024年第5期9卷 160-163页

作者：李聪刘慧敏熊琳李春雷湖北医药学院附属国药东风总医院湖北十堰442008

基于国家大健康产业、医药产业创新发展对临床药学和临床试验人才数量和质量的新需求,初步探讨在临床药学人才教学中导入药物临床试验相关理论、实践的必要性和方式。依据院校临床药学培养教学内容和特点,将临床试验相关理论和实践整合... 详细信息

基于国家大健康产业、医药产业创新发展对临床药学和临床试验人才数量和质量的新需求,初步探讨在临床药学人才教学中导入药物临床试验相关理论、实践的必要性和方式。依据院校临床药学培养教学内容和特点,将临床试验相关理论和实践整合到临床药学培养的不同阶段开展教学,在临床药学基础理论教学中导入药物临床试验理论和案例教学,在临床药学毕业实践中进行临床试验实践教学提升能力,在临床药学研究生培养阶段进行临床试验创新培养。一方面提高临床药学专业学生实践能力,扩大临床试验人才培养路径;另一方面提升临床药学学生的创新思维和能力,满足社会大健康产业多元需求。

关键词：临床药学药物临床试验医药创新人才培养

Analysis of oil shedding and ligaments formation on bearing rotary elements

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Chinese Journal of Aeronautics 2023年第2期36卷 377-387页

作者： Donglei zHU Guoding CHEN Yanjun li Chaoyang zHANG lin WANG School of Mechanical Engineering Northwestern Polytechnical UniversityXi'an 710072China China Gas Turbine Establishment Chengdu 610500China

For designing efficient lubrication system of an aeroengine bearing chamber,sufficient knowledge on oil/air two-phase flow characteristics is *** analyzing bearing chamber two-phase flow,the essential prerequisite is quantifying the oil ligaments,which are detached from bearing rotary elements and shed into the bearing *** investigations are mainly targeted at liquid shedding on the rotating disk as opposed to the bearing rotary ***,the research based on bearing rotary elements is conducted by *** to the limited operating conditions,experimental studies cannot guide engineering *** overcome these limitations,a theoretical model is established in this paper,for revealing the mechanism of oil shedding from bearing rotary elements and quantifying the shedding *** theoretical model is validated against experimental results from classical *** addition,the correlation for shedding ligaments number based on aeroengine bearing structural and operational parameters is obtained via theoretical *** analytical results demonstrate that oil shedding and ligaments formation appear at the edge of bearing inner race *** number of shedding ligaments increases with the rise of shaft rotational speed while decreases with the growth of oil viscosity.

关键词： Aeroengine bearing chamber ligaments Lubrication Mechanical analysis Shedding Wave

塔里木盆地顺北地区顺北84X井超千米含油气重大发现及其意义

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石油与天然气地质 2024年第2期45卷 341-356页

作者：曹自成云露漆立新李海英韩俊耿锋林波陈菁萍黄诚毛庆言中国石化西北油田分公司新疆乌鲁木齐830011

塔里木盆地顺北中部北东向走滑断裂带长期处于油气运聚富集的优势区,顺北8号走滑断裂带实钻揭示沿断裂带发育断控缝洞型油气藏,顺北84X井纵向上沿断裂带含油气高度高达1088 m,揭示断控缝洞型油气藏含油气高度大、不受现今构造高低控制... 详细信息

塔里木盆地顺北中部北东向走滑断裂带长期处于油气运聚富集的优势区,顺北8号走滑断裂带实钻揭示沿断裂带发育断控缝洞型油气藏,顺北84X井纵向上沿断裂带含油气高度高达1088 m,揭示断控缝洞型油气藏含油气高度大、不受现今构造高低控制。为查明断控缝洞型油气藏含油气高度的主控因素,立足顺北中部奥陶系碳酸盐岩油气藏的成藏地质条件和钻探成果,开展顺北84X井的储层、圈闭及成藏特征等石油地质条件分析,为深化断控缝洞型油气藏认识和向深层评价拓展提供支撑。研究表明:①走滑构造破碎是致密碳酸盐岩成储的关键,其储层发育深度不受碳酸盐岩地层埋深的控制,在近9000 m的埋深条件下仍发育断控缝洞型储集体;②上覆巨厚泥岩盖层顶封、两侧致密灰岩侧封、走滑断裂平面分段和纵向分层变形是形成断控缝洞型圈闭的关键;③油-源对比分析表明油气来自寒武系玉尔吐斯组烃源岩,证实了前期顺北中、东部“寒武多期供烃、构造破裂成储、原地垂向输导、晚期成藏为主、走滑断裂控富”的成藏模式的合理性。顺北84X井的发现揭示塔里木盆地超深层致密碳酸盐岩发育受走滑断裂控制,储层纵向深度大,油气充注足,超深层勘探潜力巨大。

关键词：含油气高度超深层断控油气藏顺北84X井顺北地区塔里木盆地

Fast Estimation of Loader’s Shovel Load Volume by 3D Reconstruction of Material Piles

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Chinese Journal of Mechanical Engineering 2023年第5期36卷 187-205页

作者： Binyun Wu Shaojie Wang Haojing lin Shijiang li liang Hou Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen UniversityXiamen 361102China Shenzhen Research Institute of Xiamen University Shenzhen 518057China

Fast and accurate measurement of the volume of earthmoving materials is of great signifcance for the real-time evaluation of loader operation efciency and the realization of autonomous operation. Existing methods for volume measurement, such as total station-based methods, cannot measure the volume in real time, while the bucket-based method also has the disadvantage of poor universality. In this study, a fast estimation method for a loader’s shovel load volume by 3D reconstruction of material piles is proposed. First, a dense stereo matching method (QORB–MAPM) was proposed by integrating the improved quadtree ORB algorithm (QORB) and the maximum a posteriori probability model (MAPM), which achieves fast matching of feature points and dense 3D reconstruction of material piles. Second, the 3D point cloud model of the material piles before and after shoveling was registered and segmented to obtain the 3D point cloud model of the shoveling area, and the Alpha-shape algorithm of Delaunay triangulation was used to estimate the volume of the 3D point cloud model. Finally, a shovel loading volume measurement experiment was conducted under loose-soil working conditions. The results show that the shovel loading volume estimation method (QORB–MAPM VE) proposed in this study has higher estimation accuracy and less calculation time in volume estimation and bucket fll factor estimation, and it has signifcant theoretical research and engineering application value.

关键词： Loader Volume estimation Binocular stereo vision 3D terrain reconstruction Point cloud registration and segmentation

Molten-liCl induced thermochemical prelithiation of SiOx:Regulating the active Si/O ratio for high initial Coulombic efficiency

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Nano Research 2022年第1期15卷 230-237页

作者： Yang li Yong Qian Jie zhou Ning lin Yitai Qian Department of Applied Chemistry University of Science and Technology of ChinaHefei 230026China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China

The low initial Coulombic efficiency(ICE)of SiOx anode caused by the irreversible generation of liySiOz and li20 during lithiation process limits its application for high energy-density lithium-ion ***,we report a molten-salt-induced *** strategy for regulating the electrochemically active Si/O ratio of SiOx and thus enhancing ICE through thermal treatment of pre-synthesized linH2-coated SiOx in molten liCl at 700℃.Bulk SiOx micro-particle was transformed into pomegranatelike prelithiated micro-cluster composite(M-li-SiOx)with SiOx core and outer nano-sized agglomerates consisting of li2Si20s,SiO2,and *** the analysis of the reaction intermediates,molten-UC!could initiate reactions and promote mass transfer by the continuous extraction of oxygen component from SiOx particle inner in the form of inert li2Si20s and SiO2 nanotubes to realize *** degree of prelithiation can be regulated by adjusting the coating amount of linH2 layer,and the resulted M-li-SiOx displays a prominent improvement of ICE from 58.73%to 88.2%.The graphite/M-li-SiOx(8:2)composite electrode delivers *** capacity of 497.29 mAh·g^(-1) with an ICE of 91.79%.By pairing graphite/M-li-SiOx anode and liFeP04 cathode in a full-cell an enhancement of energy density of 37.25%is realized compared with the full-cell containing graphite/SiOx ***,,ex-situ X-ray photoelectron spectroscopy(XPS)/Raman/X-ray diffraction(XRD)and related electrochemical measurements reveal the SiOx core and Si of M-li-SiOx participate in the lithiation,and pre-generated li2Si20s with u+diffusivity and *** reduces the reaction resistance and interface impedance of the solid electrolyte interphase(SEI)film.

关键词： initial Coulombic efficiency thermochemical prelithiation liquid coating molten-salt mass transfer

UV法测定紫草中羟基萘醌总色素含量的不确定度评定及应用

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品牌与标准化 2024年第1期 27-29页

作者：关卓明何敬铭林泳仪李砺药材饮片有限公司广东佛山528000

对采用紫外-可见分光光度(UV)法测定紫草中羟基萘醌总色素含量全过程进行分析,建立数学模型,确定影响总色素测定不确定度的因素并对其进行评估。结果表明,总色素含量测定的扩展不确定度为0.06%,测定结果表示为(1.69±0.06)%(k=2),能力... 详细信息

对采用紫外-可见分光光度(UV)法测定紫草中羟基萘醌总色素含量全过程进行分析,建立数学模型,确定影响总色素测定不确定度的因素并对其进行评估。结果表明,总色素含量测定的扩展不确定度为0.06%,测定结果表示为(1.69±0.06)%(k=2),能力验证结果为满意。

关键词：紫草羟基萘醌分光光度法能力验证不确定度

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钾肥施用量对马铃薯产量及商品薯率的影响

耕作与栽培 2024年第1期44卷 107-109页

作者：张付兰林英李位李洋黄勇毕节市七星关区农业农村局贵州毕节551800

针对马铃薯的喜钾特性,在常规种植施肥水平上增施纯硫酸钾,探索钾肥不同施用量对马铃薯产量及商品薯率的影响,从而为马铃薯取得高产和较高经济效益提供一定的参考。结果表明,钾肥不同施用量对马铃薯的产量和商品薯率影响较大,以硫酸钾... 详细信息

针对马铃薯的喜钾特性,在常规种植施肥水平上增施纯硫酸钾,探索钾肥不同施用量对马铃薯产量及商品薯率的影响,从而为马铃薯取得高产和较高经济效益提供一定的参考。结果表明,钾肥不同施用量对马铃薯的产量和商品薯率影响较大,以硫酸钾复合肥(50 kg/667 m^(2))、增施纯硫酸钾(18 kg/667 m^(2))进行施肥产量最高,产量高达1666.29 kg/667 m^(2)。

关键词：钾肥马铃薯施用量产量商品薯率