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Journal of Energy Chemistry 2022年第11期31卷 404-411,I0011页

作者： Weijian wu Zhen Gao Qun Li Zhiya Wang Shiyin Liu hongbo wu Yuanchun Zhao Yalong Jiao Xiaojia Zhao Hebei Key Laboratory of Inorganic Nano-materials College of Chemistry and Materials ScienceHebei Normal UniversityShijiazhuang 050024HebeiChina Hebei Key Laboratory of Photophysics Research and Application College of PhysicsHebei Normal UniversityShijiazhuang 050024HebeiChina State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004HebeiChina

A mixture of Ni and Fe oxides is among the most commonly active catalysts for the oxygen evolution reaction(OER)during the water oxidation process.In particular,Ni oxide incorporated with even a small amount of Fe leads to substantively enhanced OER activity.However,the critical role of Fe species during the electrocatalytic process is still under evaluation.Herein,we report nickel(oxy)hydroxide incorporated with Fe through the surface reconstruction of a bimetallic metal-organic framework(NiFe-MOF)during the water oxidation process.The spectroscopic investigations with theoretical calculations reveal the critical role of Fe in promoting the formation of highly oxidized Ni^(4+),which directly correlates with an enhanced OER activity.Both the geometric and electronic structu res of the as-reconstructed Ni_(1-x)Fe_(x)OOH electrocatalysts can be delicately tuned by the Ni-Fe ratio of the bimetallic NiFe-MOF,further affecting the catalytic activity.As a result,the Ni_(1-x)Fe_(x)OOH derived from Ni_(0.9)Fe_(0.1)-MOF delivers low overpotentials of 260 mV at 10 mA cm^(-2)and 400 mV at 300 mA cm^(-2).

关键词： Structural transformation Bimetallic metal-organic framework Oxygen evolution reaction In-situ Raman spectroscopy High-valence metal sites

离散燃料火蔓延“V”形和“A”形火焰前锋形成机理

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清华大学学报（自然科学版） 2024年第6期64卷 1000-1006页

作者：马亮杰吴红波王禹中国科学技术大学火灾科学国家重点实验室合肥230026 安徽理工大学化工与爆破学院淮南232001

真实火场不同燃料密度条件下,离散燃料火焰前锋形状具有显著差异,例如形状相反的“A”形和“V”形。关于离散固体燃料火焰前锋形状的研究较为有限,为了更好地预测火蔓延行为,亟待研究火焰形状变化的形成机制。将5 mm(长)×5 mm(宽)×60 ... 详细信息

真实火场不同燃料密度条件下,离散燃料火焰前锋形状具有显著差异,例如形状相反的“A”形和“V”形。关于离散固体燃料火焰前锋形状的研究较为有限,为了更好地预测火蔓延行为,亟待研究火焰形状变化的形成机制。将5 mm(长)×5 mm(宽)×60 mm(高)的木条均匀排布,固定在开孔水平板上,控制外界条件和燃料总面积相同,通过改变木条间距,在3、5和7 mm 3个工况下进行实验,并对热通量和质量损失进行测量和分析。结果表明:随着木条间距的增加,火焰前锋由“V”形(两侧火焰传播较快)逐渐变为“A”形(中心线火焰传播较快)。基于传热理论,通过对流传热和辐射传热对离散燃料火蔓延前锋形状进行分析,建立了辐射传热模型,为火蔓延行为的精确预测提供了理论基础。

关键词：离散燃料火焰蔓延火焰前锋形状传热机制热通量质量损失

Recursive narrative alignment for movie narrating

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Science China(Information Sciences) 2020年第7期63卷 230-232页

作者： Zhongyi HAN hongbo wu Benzheng WEI Yilong YIN Shuo LI School of Software Shandong University Computational Medicine Lab Shandong University of Traditional Chinese Medicine

Movie narrating can enable the capture of not only the subject matter but also the emotive essence of the subject. For example,"having a good time"or "feeling exhausted", which relates to the narrative of "holding a birthday party". Movie narrating converts the human-like expressivity in movie shots (i.e., sets of film frames) into a cohesive and

关键词： Movie Narrating Visual Captioning Long Short-Term Memory Networks Deep Learning Narrative

基于小孔径光阑整形的低损耗飞秒光纤光栅制备

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中国激光 2024年第2期51卷 111-117页

作者：张鹏浩武洪波陈爽江文松张力中国航空工业集团有限公司北京长城计量测试技术研究所北京100095 中国计量大学计量测试工程学院浙江杭州310018

针对飞秒激光逐点法制备的光纤布拉格光栅(FBG)损耗较大的问题,提出了一种基于小孔径光阑整形的低损耗飞秒光纤光栅制备方法。首先分析了孔径光阑限制下聚焦高斯光束焦场的能量分布,利用小孔径光阑整形获得了丝状焦场的孔径条件。利用... 详细信息

针对飞秒激光逐点法制备的光纤布拉格光栅(FBG)损耗较大的问题,提出了一种基于小孔径光阑整形的低损耗飞秒光纤光栅制备方法。首先分析了孔径光阑限制下聚焦高斯光束焦场的能量分布,利用小孔径光阑整形获得了丝状焦场的孔径条件。利用小孔径光阑整形的飞秒激光刻写装置制备FBG,在光阑孔径由10 mm逐步降低至1 mm的过程中,光栅条纹形态由圆形过渡到丝状,丝状光栅条纹对入射光的散射更弱、耦合效率更高,使插入损耗由0.90 dB降低至0.11 dB,短波损耗由4.01 dB降低至0.35 dB。受包层模与纤芯模耦合的影响,短波损耗以振荡形式存在,实验验证了涂覆层和低反射率对振荡的抑制作用。

关键词：光栅光纤布拉格光栅飞秒激光小孔径光阑插入损耗短波损耗

Estimate the influence of snow grain size and black carbon on albedo

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Research in Cold and Arid Regions 2015年第2期7卷 111-120页

作者： ZhongMing Guo NingLian Wang XiaoBo wu hongbo wu YuWei wu State Key Laboratory of Cryospheric Science Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences School of Environment Science Nanjing Xiaozhuang University

Estimation of the influence of snow grain size and black carbon on albedo is essential in obtaining the accurate albedo. In this paper, field measurement data, including snow grain size, snow depth and density was obtained. Black carbon samples were collected from the snow surface. A simultaneous observation using Analytical Spectral Devices was employed in the Qiyi Glacier located in the Qilian Mountain. Analytical Spectral Devices spectrum data were used to analyze spectral re- flectance of snow for different grain size and black carbon content. The measurements were compared with the results obtained from the Snow, Ice, and Aerosol Radiation model, and the simulation was found to correlate well with the ob- served data. However, the simulated albedo was near to 0.98 times of the measured albedo, so the other factors were as- sumed to be constant using the corrected Snow, Ice, and Aerosol Radiation model to estimate the influence of measured snow grain size and black carbon on albedo. Field measurements were controlled to fit the relationship between the snow grain size and black carbon in order to estimate the influence of these factors on the snow albedo.

关键词： snow grain size black carbon albedo measured data

小儿智力糖浆联合脑蛋白水解物治疗小儿脑瘫的临床效果

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临床合理用药杂志 2024年第2期17卷 15-18页

作者：吴红波济南市第二妇幼保健院儿童保健科 271100

目的观察小儿智力糖浆联合脑蛋白水解物治疗小儿脑瘫的临床效果。方法选取2020年1月—2021年12月济南市第二妇幼保健院接诊的脑瘫患儿86例,按照随机抽签法分为观察组和对照组各43例。2组均进行常规康复训练,对照组给予脑蛋白水解物口服... 详细信息

目的观察小儿智力糖浆联合脑蛋白水解物治疗小儿脑瘫的临床效果。方法选取2020年1月—2021年12月济南市第二妇幼保健院接诊的脑瘫患儿86例,按照随机抽签法分为观察组和对照组各43例。2组均进行常规康复训练,对照组给予脑蛋白水解物口服液,观察组在对照组治疗基础上给予小儿智力糖浆,2组均连续治疗1个月。比较2组临床疗效,治疗前后高迁移率族蛋白B_(1)(HMGB_(1))、神经元特异性烯醇化酶(NSE)水平、脑血流灌注状态[平均血流速度(Vm)、脑动脉收缩期峰流速度(Vs)]、格赛尔发育量表(GDS)评分、盖泽尔儿童发育商评估量表(DQ)评分,以及不良反应。结果观察组总有效率为95.35%,高于对照组的81.40%(χ^(2)=4.074,P=0.044)。治疗1个月后,2组血清HMGB_(1)、NSE水平低于治疗前,且观察组低于对照组(P<0.01);2组Vm、Vs高于治疗前,且观察组高于对照组(P<0.01);2组GDS评分、DQ评分高于治疗前,且观察组高于对照组(P<0.01)。观察组不良反应总发生率与对照组比较差异无统计学意义(4.65%vs.11.63%,χ^(2)=0.622,P=0.430)。结论小儿智力糖浆联合脑蛋白水解物治疗小儿脑瘫效果更理想,有助于改善脑瘫患儿病情,增强综合功能,促进机体发育,减少不良反应,提高生活质量。

关键词：小儿脑瘫小儿智力糖浆脑蛋白水解物治疗效果

The first application of isoindigo-based polymers in non-fullerene organic solar cells

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Science China Chemistry 2020年第9期63卷 1262-1271页

作者： Bao Zhang Ning An hongbo wu Yanfang Geng Yanming Sun Zaifei Ma Weiwei Li Qiang Guo Erjun Zhou Henan Institutes of Advanced Technology Zhengzhou UniversityZhengzhou 450003China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China School of Chemistry Beihang UniversityBeijing 100191China Center for Advanced Low-dimension Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China

Although isoindigo(IID)-based polymers can realize high charge mobility,these materials are currently confined to fullerenebased organic solar cells(OSCs).Herein,we designed a pair of alternative D-π-A type copolymers,PE71 and PE72,to expand the application in non-fullerene OSCs,where benzo[1,2-b:4,5-b′]thiophene(BDT),thieno[3,2-b]thiophene(TT)and IID units were used as D,A andπ-bridge,respectively.The aim of optimizing the length of alkyl chains on TT bridge is to ensure polymer solubility,crystallinity as well as miscibility with acceptor molecules.We find that PE71 and PE72 exhibit similar optical and electronic properties,but PE71 with shorter hexyl chain tends to aggregate into fiber-like structure.In the end,Y6 is selected as the electron acceptor because of suitable energy levels and complementary absorption spectrum.Finally,PE71:Y6 device realizes a power conversion efficiency(PCE)of 12.03%,which is obviously higher than that of PE72:Y6 device(9.74%)and is also the highest value for IID-based photovoltaic polymers.The charge transport,molecular aggregation,film morphology and energy loss analysis were systematically investigated.The improved photovoltaic performance of PE71:Y6 mainly originates from the better interpenetrating network structure toward facilitating exciton seperation and free charge carrier transportation.Our results indicate that IID-based D-π-A polymers can also be utilized in non-fullerene OSCs and the alkyl chains on the thieno[3,2-b]thiopheneπ-bridge have a vital effect on the photovoltaic performance.

关键词： isoindigo thieno[3,2-b]thiophene alkyl chain non-fullerene organic solar cells

Quantitative estimation of the influence factors on snow/ice albedo

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Research in Cold and Arid Regions 2020年第2期12卷 83-94页

作者： ZhongMing Guo NingLian Wang BaoShou Shen ZhuJun Gu hongbo wu YuWei wu AnAn Chen Xi Jiang Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity Xi'anShannxi 710127China Institute of Earth Surface System and Hazards College of Urban and Environmental SciencesNorthwest UniversityXi'anShannxi 710127China School of Environmental Science Nanjing Xiaozhuang UniversityNanjingJiangsu 211171China School of History and Tourism Shaanxi Sci-Tech UniversityHanzhongShannxi 723000China Key Laboratory of Meteorological Disaster of Ministry of Education Nanjing University of Information Science&TechnologyNanjingJiangsu 210000China

Quantitative estimation of the influence of various factors,such as black carbon,snow grain,dust content,and water con tent on albedo is essential in obtaining an accurate albedo.In this paper,field measurement data,including snow grain size,density,liquid water content,and snow depth was obtained.Black carbon and dust samples were collected from the snow surface.A simultaneous observation using ASD(Analytical Spectral Devices)spectral data was employed in the Qiyi glacier located on Qilian Mountain.The measurements were compared with results obtained from the Snow,Ice,and Aerosol Radiation(SNICAR)model.Additionally,a HYbrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)air mass backward trajectory model was used to track the source of black carbon.The simulation was found to correlate well with observed data.Liquid water content was the most influential factor of albedo among the several influencing fac tors,followed by black carbon content and snow grain size.Finally,snow density change had the least toward albedo.HYSPLIT atmospheric trajectories model can only approximately show the source of black carbon and not clearly indicate the source region of black carbon.

关键词： albedo black carbon snow grain size quantitative estimation

Optical properties and applications of SnS_(2) SAs with different thickness

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Opto-Electronic Advances 2021年第10期4卷 1-10页

作者： Mengli Liu hongbo wu Ximei Liu Yaorong Wang Ming Lei Wenjun Liu Wei Guo Zhiyi Wei State Key Laboratory of Information Photonics and Optical Communications School of ScienceP.O.Box 91Beijing University of Posts and TelecommunicationsBeijing 100876China School of Physics Beijing Institute of Technology5 South Zhongguancun StreetBeijing 100081China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

Q-switched lasers have occupied important roles in industrial applications such as laser marking,engraving,welding,and cutting due to their advantages in high pulse energy.Here,SnS_(2)-based Q-switched lasers are implemented.Consid-ering that SnS_(2) inherits the thickness sensitive optical characteristics of TMD,three kinds of SnS2 with different thick-ness are characterized in terms of nonlinearity and used to realize the Q-switched pulses under consistent implementa-tion conditions for comparison tests.According to the results,the influence of thickness variation on the nonlinear per-formance of saturable absorber,such as modulation depth and absorption intensity,and the influence on the correspond-ing laser are analyzed.In addition,compared with other traditional saturable absorbers,the advantage of SnS_(2) in realiz-ing ultrashort pulses is also noticed.Our work explores the thickness-dependent nonlinear optical properties of SnS_(2),and the rules found is of great reference value for the establishment of target lasers.

关键词： nonlinear optical materials fiber laser Q-switching

Review of snow grain size retrieval from remote sensing

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Research in Cold and Arid Regions 2013年第2期5卷 251-258页

作者： ZhongMing Guo hongbo wu RuiJuan Mao ChunWen Zhang YuWei wu State Key Laboratory of Cryospheric Science Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences

In this paper, the significance and history of studying snow grain size is introduced. Based on the assumption that high reflectivity in the visible band and significant decreasing reflectivity of snow surface in the infrared band, the grain size of snow, spherical and non-spherical, is sensitive to changes in remote sensing retrieval foundation. Also, models and algorithms applied in current studies are reviewed, together with their advantages and disadvantages. In addition, in order to obtain retrieval accuracy, some factors that may affect grain size are also discussed, such as temperature, wavelength, arid particle shape, as well as method authentication.

关键词： snow grain size remote sensing retrieval model algorithm