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Direct observation of localized surface plasmon field enhancement by Kelvin probe force microscopy

Light(Science & Applications) 2017年第1期6卷 608-614页

作者： Da-Bing Li Xiao-Juan Sun Yu-Ping Jia Mark i Stockman Hari P Paudel Hang Song Hong Jiang Zhi-Ming Li State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Center for Nano-Optics(CeNO)and Department of Physics and Astronomy Georgia State UniversityAtlantaGA 30340USA

A surface plasmon(SP)is a fundamental excitation state that exists in metal *** the past several years,the performance of optoelectronic devices has been improved greatly via the SP enhancement *** our previous work,the responsivity of GaN ultraviolet detectors was increased by over 30 times when using Ag ***,the physics of the SP enhancement effect has not been established definitely because of the lack of experimental *** reveal the physical origin of this enhancement,Kelvin probe force microscopy(KPFM)was used to observe the SP-induced surface potential reduction in the vicinity of Ag nanoparticles on a GaN *** ultraviolet illumination,the localized field enhancement induced by the SP forces the photogenerated electrons to drift close to the Ag nanoparticles,leading to a reduction of the surface potential around the Ag nanoparticles on the GaN *** an isolated Ag nanoparticle with a diameter of~200 nm,the distribution of the SP localized field is located within 60 nm of the boundary of the Ag *** a dimer of Ag nanoparticles,the localized field enhancement between the nanoparticles was the *** results presented here provide direct experimental proof of the localized field *** results not only explain the high performance of GaN detectors observed with the use of Ag nanoparticles but also reveal the physical mechanism of SP enhancement in optoelectronic devices,which will help us further understand and improve the performance of SP-based optoelectronic devices in the future.

关键词： detector GaN KPFM plasmon

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计算机化汽车调度系统的设计和开发

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矿业工程 1986年第3期 41-49页

作者： D.i.霍德森刘廷安纳米比亚罗星铀矿公司露天矿助理主任

过去几年铀矿市场萧条,迫使罗星(Rossing)铀矿公司把注意力集中在成本控制上了。开发研究了一个重要工程项目即计算机化汽车调度系统,目的在于减少汽车的需要量,从而节省购置和营运费用。本文介绍了罗星公司的开发途径:从影响汽车效率... 详细信息

过去几年铀矿市场萧条,迫使罗星(Rossing)铀矿公司把注意力集中在成本控制上了。开发研究了一个重要工程项目即计算机化汽车调度系统,目的在于减少汽车的需要量,从而节省购置和营运费用。本文介绍了罗星公司的开发途径:从影响汽车效率的主要领域的早期工作的研究直到设计出一个调车算法。说明了应用计算机系统的理由。这就要编制关于第一阶段数据收集的说明书,并购置通称管理信息系统(mis)的报告装置。然后确定了调度算法的目标以及研究这种算法所采用的步骤。这包括对电铲、汽车生产率和费用的模拟以及对露天矿各种管理方法的调查研究;还包括线性规划的讨论。而后提出了包括在管理信息系统之内的两阶段的简便算法。最后,讨论了本公司自己开发研究与购买软件包加以对比的优点,并对为完成这类项目所需时间提出一些想法。

关键词：电铲作业罗星匹配系数汽车调度系统计算机化生产率曲线露天矿矿山工程师们排队时间

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描绘问责:核心概念与子类型

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国际行政科学评论（中文版） 2013年第2期79卷 15-38页

作者：斯塔芬·i.林德伯格孙广厦(翻译) 柳学智(审校) 瑞典歌德堡大学政治学系美国佛罗里达大学政治学系多元民主研究所政府质量研究所不详

近年来,在公共行政和国际发展研究领域的'问责'浪潮似乎部分偏离了几个世纪以来在财务和会计相关学科及政治学中所形成的概念体系和实证研究。本文梳理了数百个研究中问责的核心意涵,并力图将文献中问责的一系列子类型条分缕析,使之有... 详细信息

近年来,在公共行政和国际发展研究领域的'问责'浪潮似乎部分偏离了几个世纪以来在财务和会计相关学科及政治学中所形成的概念体系和实证研究。本文梳理了数百个研究中问责的核心意涵,并力图将文献中问责的一系列子类型条分缕析,使之有序化。一项分类方案倘若包含控制源、控制强度和关系方向这三个维度,就可囊括问责现存的所有类型。由此产生的类型划分进一步表明,不同子类型不仅具有不同的参与者和特征,而且试图保持不同的价值观,同时也面临着迥然不同的挑战。上述结论具有重要意义,不仅对于进一步研究而言,而且对于能否将一种子类型结果解释为另一种子类型结果,也是如此;与此同时,上述结论对于实践中的政策工作也颇具指导意义。

关键词：研究意涵问责结论核心类型

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Effects of Emotional State on Processing Conceptual mismatches: ERPs in a Picture-Sentence Matching Task

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Journal of Behavioral and Brain Science 2017年第12期7卷 557-584页

作者： Randi i. Goertz Constance T. W. M. Vissers Martine W. F. T. Verhees Dorothee J. Chwilla Centre for Cognition Donders Institute for Brain Cognition and Behaviour Radboud University Nijmegen The Netherlands Royal Dutch Kentalis Sint-Michielsgestel The Netherlands Behavioural Science institute Nijmegen The Netherlands Parenting and Special Education Research Unit KU Leuven Leuven Belgium

Event-related potential (ERP) studies demonstrated that emotional state immediately affects the processing of different linguistic mismatches (e.g., semantic and syntactic mismatches) in sentences. Furthermore, mood has been shown to impact discourse processing. in these studies, a strong expectancy was evoked by a linguistic context. in the present study, a strong expectancy was induced by a visual (non-linguistic) context paired with a sentence. A spatial array was followed by a sentence that matched (□○—The square stands in front of the circle) or mismatched the picture (intra-dimensional mismatch: □○—The square stands behind the circle;extra-dimensional mismatch: □○—The square stands above the circle). The main question was whether mood effects on the processing of visually induced expectancies are similar or different from mood effects on the processing of linguistically induced expectancies. To this aim, we presented conceptual (mis)matches that differed in saliency: intra-dimensional vs. extra-dimensional mismatches which are both reported to elicit an N2b/N400 and P600, reflecting reanalysis. EEG was recorded while participants read for comprehension. Mood (happy vs. sad) was effectively induced by film clips. Neither for N2b/N400 nor for P600, an interaction between mood and match was observed. Thus, in contrast with studies investigating the effects of pure linguistic mismatches (linguistic context paired with unexpected lexical item), mood did not modulate the processing of conceptual mismatches. However, a main effect of match revealed different ERP patterns for the two mismatches. While an increase in N2b/ N400 occurred for the intra-dimensional and extra-dimensional mismatches, a P600 only occurred to the extra-dimensional (more salient) mismatches. This finding is taken as support that being in an emotional state (positive or negative mood) influences processes of reanalysis. That is, when being in an emotional state, a reanalysis (monitoring) process

关键词： Event-Related Potentials Mood Conceptual Processing Picture-Sentence mismatches

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秋水仙碱(COM)诱发小鼠骨髓细胞C-有丝分裂效应的研究

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细胞生物学杂志 1996年第4期18卷 172-176页

作者：史庆华 i.-D.Adler G.Schriever-schwemmer 张锡然陈宜峰 GSF-institute of Genetics D-85758 Germany 南京师范大学生物系

本文以101/E1和C3H/E1的杂种第一代小鼠为材料,一次性腹腔注射秋水仙碱(COM)后,于不同时间取材,观察分析了小鼠骨髓细胞有丝分裂指数(Mi)和C-有丝分裂的变化。结果表明:COM处理后2小时,Mi和C-有丝分裂均已达到最高;并随处理时间延长而降... 详细信息

本文以101/E1和C3H/E1的杂种第一代小鼠为材料,一次性腹腔注射秋水仙碱(COM)后,于不同时间取材,观察分析了小鼠骨髓细胞有丝分裂指数(Mi)和C-有丝分裂的变化。结果表明:COM处理后2小时,Mi和C-有丝分裂均已达到最高;并随处理时间延长而降低;至18小时,Mi已降到(1mg/kg)或显著低于(3mg/kg)对照水平,而C-有丝分裂仍显著高于对照组。并对COM影响Mi的可能机制以及C-有丝分裂效应与非整倍体诱导活性之间的关系进行了讨论。

关键词：细胞骨髓细胞秋水仙碱 C-有丝分裂效应

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华南贵州早奥陶世红花园组的镰箭类牙形刺(英文)

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微体古生物学报 2007年第2期24卷 125-148页

作者：甄勇毅 i.G.波斯威尔 A.鲁夫格恩刘建波澳大利亚博物馆古生物部新南威尔士州地质调查所隆德大学地质系北京大学地质学系北京100871

本文描述了产自华南贵州下奥陶统红花园组(桐梓红花园标准剖面,沿河甘溪剖面和贵阳黄花冲剖面)的四个镰箭类牙形刺种:Drepanoistodus ***,Paltodus ***,Paltodus sp.A和Paroisto-dus sp.。***为红花园组常见种,但另三种则相对稀少。在... 详细信息

本文描述了产自华南贵州下奥陶统红花园组(桐梓红花园标准剖面,沿河甘溪剖面和贵阳黄花冲剖面)的四个镰箭类牙形刺种:Drepanoistodus ***,Paltodus ***,Paltodus sp.A和Paroisto-dus sp.。***为红花园组常见种,但另三种则相对稀少。在红花园组标准剖面,Paltodus ***最低出现于该组底部,证实此层位为晚特马豆克期。文中详细图示了产于瑞典下奥陶统的两个带化石种:Paltodus deltifer和Paroistodus proteus,以及瑞典镰箭刺属的三个常见种:Drepanoistodus forceps,***和***。通过与瑞典材料的详细对比,我们认为华南以前关于***和***两种的记述多有误,须重新厘定。

关键词：牙形刺早奥陶世红花园组华南瑞典

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采用多光谱成像系统进行子宫颈光学活检的临床研究

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世界核心医学期刊文摘（妇产科学分册） 2005年第5期1卷 56-57页

作者： Orfanoudaki i.M Themelis G.C Sifakis S.K 侯巍

To present the clinical application of the multispectral imaging colposcopic s ystem (mis colposcopy). mis colposcopy was performed on 123 enrolled women. Afte r a 3%acetic acid application, sequential images were captured, analyzed, and s tored automatically. Directed biopsies were taken from distinct marked acetic ac id-responsive tissue areas indicated on the monitor, while a real-time assessm ent of the curves of intensity of the backscattered light (iBSL) vs. time was pe rformed. Blind biopsies were taken from non-acetowhitening areas. Histological findings were correlated with mis colposcopy results and compared with conventio nal colposcopy and Pap test results. Acetic acid-tissue interaction resulted in temporal and spatial alterations to the light scattering properties of the abno rmal tissue that was analyzed. The shape of iBSL curve and the "relaxation time" (the time it takes for iBSL to decay to 1/e of its peak value) changed in accor dance with the underlying lesion. More severe CiN lesions lead to higher maximum iBSL; longer durations of acetowhitening lead to increasingly delayed exponenti al decay of iBSL curve. To compare with histological examination, mis colposcopy had a 1.7%falsediagnostic rate, while PAP test and conventional colposcopy had 24.4%and 22%false-diagnostic rates, respectively. A triple exponential funct ion created a “pseudocolor" image that comprised the grade map of the lesion, a nd this is frequently representative of the duration/degree of the induced alter ations. improved diagnostic information can be gained by recording the optical i nformation in a narrow spectral range with high spatial resolution. mis colposco py can be used in the diagnosis of uterine cervix pathological conditions and in the differentiation between CiN lesions.

关键词：子宫颈病变多光谱成像阴道镜检查组织学检查活组织检查散射光强度组织学检测误诊率继发改变光散射

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Paleoenvironmental changes in southern Siberia during the Late Pleistocene and Holocene-evidence from multiproxy records of the Lake Baikal Region

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地球环境学报 2011年第1期 309-309页

作者： Bezrukova E Tarasov PA Riedel F Kuzmin M i A.P.Vinogradov Institute of GeochemistrySO RASIrkutsk 664033Russia institute of Geological Sciences Free University Berlin

Worldwide terrestrial and marine sedimentary archives demonstrate that the last 50 ka interval in the Earth’s history experienced a number of long- and short-term climatic ***-resolution and accurately dated pollen and sedimentary records of the late-glacial/early Holocene interval exist for several regions of Europe and East Asia,providing important insight into the environmental dynamics in the North Pacific and North Atlantic ***,a recent global-scale synthesis of the Holocene climatic data demonstrates a lack of palaeorecords of comparable dating quality and resolution from the vast areas of Eurasia,including *** dating problem becomes even more obvious,when the pre-Holocene interval of the late Quaternary is *** Siberia— the region of Russia between;0—120°E and;0—60°N— consists of numerous sublatitudinal mountain ranges and lakes,including Lake Baikal in the *** lake sediments are one of the most promising sources of detailed palaeoenvironmental information,which provide an opportunity for bridging the European and Asian palaeoclimate archives and addressing critical questions concerning Quaternary climatology and *** publications on the Lake Baikal region presented coarse-resolution（millennial- or multicentury-scale） qualitative reconstructions of the Quaternary *** the long cores from Lake Baikal span millions of years research was mainly focused on the Holocene and earlier ***,little is known about glacial intervals due to the problems associated with very low pollen concentrations,poor organic content,low sedimentation rates and poor *** recently,even the YD cooling was not unequivocally identified and dated in the Baikal *** study presents new pollen and diatom records from Lake Kotokel and several regional peadands,and aims to reconstruct regional vegetation and environmental history since;7 ka BP（1 ka=1000 cal a）;to compare it w

关键词： Late Pleistocene mis 3-1 changes in vegetation cover and climate southern Siberia chronology forcing feedback

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决策支持系统应用与开发支撑环境

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山东科学 1994年第3期7卷 1-6页

作者：孙永生许宗芬王连海孙军山东省计算中心山东省科技情报所

决策支持系统应用与开发支撑环境是一个以支持决策过程为目标的，由多种功能协调配合而成的集成系统．它集决策支持、事务处理、专用ＤＳＳ（或ＭＩＳ）开发于一体，是一种通用ＤＳＳ生成器．本文讨论了有关该系统的功能、组成、结构和... 详细信息

决策支持系统应用与开发支撑环境是一个以支持决策过程为目标的，由多种功能协调配合而成的集成系统．它集决策支持、事务处理、专用ＤＳＳ（或ＭＩＳ）开发于一体，是一种通用ＤＳＳ生成器．本文讨论了有关该系统的功能、组成、结构和特点，以及用户接口与ＤＳＬ语言等技术问题．

关键词：决策支持系统软件开发支撑环境

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