Solid-state Electrochemiluminescence Study Based on Nanomaterial Modified Electrodes and Tri-color System

自从联吡啶钌电致化学发光的现象（ECL）被发现以来，ECL的分析方法就引起了人们极大的兴趣。由于该方法具有检测背景低、灵敏度高、线性范围宽等特点，被广泛应用于常规分析检测、生化检测和环境监测的研究中。本论文在固相ECL研究的基础上，结合三原色原理，针对ECL研究中存在的问题提出了解决的方法。 本论文共五章。 第一章，文献综述，主要介绍ECL的基本原理及发展概况。 第二章，建立在电极表面修饰金纳米颗粒的方法，并研究了修饰过程中金纳米颗粒的生长机理。实验中，首先在玻碳电极上修饰了规整的金纳米颗粒，然后采用自组装技术，利用羧基和氨基的缩合反应，将发光试剂二(2，2’–二联吡啶)(5-氨基-1，...Since the first report of Tris(2,2’–bipyridyl) ruthenium(II) (Ru(bpy)32+) electrogenerated chemiluminescence (ECL), Ru(bpy)32+ ECL has been received great attention and applied in many fields including daily analysis, bioassay and environmental monitoring, due to its low back ground noise, high sensitivity and wide linear range. In this dissertation, the research works are focus on the resolution ...学位：理学博士院系专业：化学化工学院化学系_分析化学学号：1912005140305

气氛重塑在组织扁平化过程中的作用

作为一项重大的变革,组织扁平化的推进面临着组织管理的各种问题。本文从组织气氛重塑的角度,探讨如何从根本上解决员工绩效下降、心理契约违背和工作压力增大问题;通过整合组织理论和组织行为学新近研究成果,构建组织气氛重塑的应用分析框架,综合考虑我国企业推行扁平化的特殊性,为如何进行气氛重塑提出针对性的建议

多项式回归与一致性研究:应用及分析

本文介绍了多项式回归的分析方法,讨论并验证了它相比传统的差异分数分析法在检验一致性假设中的优势。针对目前该方法在国内应用方面的缺失状况,本文从分析基准、理论推导、分析步骤和假设检验等方面完善了多项式回归与响应面分析相结合的应用分析框架。最后,本文以个人-组织价值观一致性对员工情感性变革承诺的影响研究为例,对分析框架的具体应用进行了说明。结果表明,被传统差异分数很好支持的一致性效应并不一定完美,新的分析框架能够揭示更多的有用信息并给管理实践带来更具体而准确的引导

Novel Materials and Approaches for Electrochemiluminescence Studies

由于方法的使用范围广、光学系统简单和操作容易,电致化学发光(ECl)得到人们的广泛重视。随着对ECl研究的深入,ECl研究所涉及的领域和层面已有很大的扩展,特别是近十年来,ECl研究发展更为迅猛。除ECl理论研究外,为了适应分析检测的应用的需求,ECl在新材料、新实验技术和方法方面出现了许多的研究报道。本文综述最近几年来ECl研究在新材料应用和新实验技术的开发方面的一些进展,包括纳微米材料和量子点材料在ECl方面的研究,同时对固态ECl和基于三原色(rgb)机理的可视化ECl研究进展,进行了一些讨论。最后,综述展望纳米和量子点材料修饰电极ECl的研究和应用的前景。Electrochemiluminescence(ECL) approaches have been received great attention due to their versatility,simplified optical setup,and good temporal and spatial control.With the extension of ECL study,ECL has been applied in a lot of fields,and got great development in recent ten years.Besides their theory studies,to meet the ECL analytical applications,there have been many reports on new materials and approaches for ECL study.In this review,we focus on the ECL applications of new materials and techniques and summary the recent development of ECL,including nano-micro and quantum dot materials for ECL studies.In addition,solid-state ECL and visible ECL approaches based on red-green-blue(RGB) tri-color system are also discussed.Finally,the prospect of ECL studies and applications using nano or quantum dot modified electrodes is presented.国家自然科学基金面上项目(No.21175112)资

价值观匹配对员工应对组织变革的影响研究:多个模型的比较

以往探讨员工应对组织变革的研究忽视了组织环境中一些长期稳定的因素,也缺乏从人与环境交互的角度来考虑员工的行为策略。文章试图探索个人—组织价值观匹配对员工应对组织变革的影响,并考虑员工变革承诺在这一影响过程中的作用。来自总共297份问卷的数据分析结果表明,价值观匹配能够显著影响员工应对变革的策略选择,而员工变革承诺则在这一影响过程中起部分中介作用。这一结论提醒企业的管理者可以通过预社会化和社会化的策略提高员工与组织的价值观匹配,以引导员工在变革中的应对策略选择

Solid-State Electrochemiluminescence on Tris(2,2′-bipyridine) ruthenium(Ⅱ) Modified Electrode

由于电致化学发光(ECL)的连续可测性、高灵敏度、稳定和方法简单,被广泛应用于分子生物学、药学、化学和环保等领域。而将可电化学再生的ECL试剂固定于电极表面,可获得ECL传感器,从而减少分析过程中试剂的消耗并简化实验装置。联吡啶钌及其衍生物在电极表面的固定化研究成为ECL研究的重要方向。本文综述了2004年以来联吡啶钌及其衍生物修饰电极的固相ECL的研究进展,并简要介绍了各种固定方法及其相关的应用情况。Electrochemiluminescence(ECL) has been widely used in biological,pharmic,chemical and environmental applications due to its continuance,sensitivity,reproducibility and relative easy to control.The ECL sensor can be assembled by immobilizing electrochemically reproducible ECL reagents on an electrode surface.This approach will reduce the reagents consuming and simplify the detection apparatus.Recently,the studies on the immobilization of tris(2,2′-bipyridine)ruthenium(Ⅱ) [Ru(bpy)_3~(2+)] and its derivations have becoming an attractive research field.This review summaries the solid-state ECL development of Ru(bpy)_3~(2+) and its derivations since 2004.The approaches for reagent immobilizations as well as the related applications are also discussed.教育部新世纪人才奖励计划;; 福建省科技项目(No.2005-I-030)资

The Organizational Control Strategy against Employee Counterproductive Work Behavior:An Empirical Research from Social Cognitive Perspective

本文基于社会认知的视角探讨中国企业员工反生产行为(CWb)的组织控制策略,采用跨层次分析的方法对27家企业的426名员工进行了实证研究。结果发现:虽然中国企业员工的尽责感和神经质人格特质对其CWb具有显著影响。但是,由于自利和规则导向的组织伦理气氛以及领导公正和信息公正作为重要的组织情境,不仅可以直接对CWb产生显著影响,而且还对人格特质与CWb之间的关系起到复杂的调节作用。因此,中国企业可以综合采用员工人格特质测试、组织伦理气氛培育以及组织公正环境建设等策略来进行员工CWb的组织控制。This article investigate the organizational control strategy of Chinese enterprises employee's counterproductive work behavior( CWB) from the perspective of social cognitive,using cross-level analysis method to do empirical research based on 426 employees from 26 enterprises.The results show that although Chinese employee's conscientiousness and neuroticism personality trait have the significant personality,but instrumentalism and rule oriented ethical climate,leader justice and information justice are very important organizational context,they not only have significant affect to CWB respectively,but also complex moderate the relationships between personality trait and CWB.So,Chinese enterprises can use a variety of strategies to control the employee's CWB such as employee personality test,organizational ethical climate cultivation,organizational justice environment construction,and so on.国家社会科学基金项目(14CGL018); 教育部人文社会科学规划基金项目(11YJA630057); 国家自然科学基金项目(71302175

用离散-连续模型计算NH_2~-,NH_3和NH_4~+的溶剂化自由能

通过理论计算推测 NH- 2 ,NH3 和 NH+4在水溶液第一溶剂化层中与之直接作用的水分子分别为 2 ,4和 4个 ,并采用离散 -连续模型计算了 NH- 2 ,N H3 和 NH+ 4在水溶液中的溶剂化自由能 .结果表明 ,由于离散 -连续模型在从头算水平考虑了溶质分子与第一溶剂化层溶剂分子之间的作用 ,能更准确地描述溶剂化作用 .此外 ,采用更加符合溶液中真实情况的溶剂化构型 ,能得到更准确的溶剂化性质

Influence of Intercalated Li on Electronic Structures and Optical Properties of V_2O_5

采用第一性原理局域密度近似法计算了V2O5的电子态密度和能带结构以及Li嵌入后对其电子结构和光学性质的影响。计算结果表明,V2O5是间接带隙半导体,Li的嵌入并没有改变其电子的跃迁方式。但Li的嵌入使得V2O5导带能量下移,禁带宽度减小,导带中原有的劈裂被分裂的能级填满;同时致使价带出现展宽。电子态密度计算结果表明Li的嵌入对临近的O和V的电子结构有较大的影响。Li2s电子的注入提高了V2O5的费米能级并导致其进入导带。由于价带中的电子只能跃迁到费米能级以上的导带空能级,这致使体系实际的光学带隙增大。同时随着Li注入量的进一步增加,价带的展宽更为明显,费米能级亦呈升高的趋势,使得光学带隙随着Li注入量的增加而增大。The density of states and band structures of α-V2O5 and Li-intercalated V2O5 (LixV2O5, x= 0.5 and 1.0) have been studied using a first-principles calculation based on density function theory with the local density approximation. The results indicate that V2O5 is an indirect-gap semiconductor; the intercalation of Li will not change its way of electron transition. While, the intercalation of Li lowers the energy of conduction band, and then narrows the band gap. At the same time, due to the intercalation of Li, the split-off in the conduction band of V2O5 disappears because of the split of conduction band. The Fermi level of LixV2O5 increases dramatically due to the electron transfer from Li 2s to the V2O5 host, which is probably the main reason why the optical band-gap augments with the Li intercalation.国家重点基础研究发展规划(001CB610505);; 国家自然科学基金(60376015,60336020);; 福建省青年人才创新基金(2005J005)资助项目~

Seasonal variations of sulfur in Suaeda salsa under different habitats in the intertidal zone of Yellow River Estuary, China

2008年5-11月,对黄河口滨岸潮滩不同生境下翅碱蓬(SuAEdA SAlSA)硫(S)的季节变化特征进行了研究。研究表明:中潮滩翅碱蓬(JP1)和低潮滩翅碱蓬(JP2)各器官生物量均具有明显的季节变化特征,总体表现为JP1>JP2;JP1和JP2地上与地下部分比值的变化较为一致,整体表现为JP2>JP1;二者枯落物量呈递增变化;JP1和JP2叶、茎和枯落物中的全硫(TS)含量在生长季波动变化明显,整体呈先增后减变化,而根中的TS含量在生长季呈递减变化,符合指数衰减模型;二者不同器官及枯落物的TS累积量和S累积速率(VS)季节变化明显,JP1地上部分的TS累积量和VS明显高于JP2,且二者地上部分的TS累积量和VS均明显高于地下;JP1和JP2不同部分的S分配比差异明显,其中叶的分配比最高,分别为(38.34±16.19)%和(66.27±12.09)%,说明叶是翅碱蓬重要的S累积器官。结果显示,翅碱蓬的生态学特性和其所处生境的水盐状况对JP1和JP2生物量、TS含量、累积量、累积速率、分配比均具有重要影响。Aims Our objective was to determine the characteristics of sulfur (S) accumulation and allocation by Suaeda salsa in two different habitats of the intertidal zone in the Yellow River Estuary of China.Methods We established two plots (30 m × 30 m) in two different tidal flats and collected different organs of S.salsa every 20 days from May to November 2008 from four or five sites selected at random from the two plots.Important findings The biomass of different organs of S.salsa in middle tidal flat (JP1) and low tidal flat (JP2) showed significant seasonal dynamics, and the values of JP1 tended to be higher than those of JP2.For JP1 and JP2, the ratios of aboveground biomass to belowground biomass changed similarly, but the values of JP2 tended to be larger than those of JP1.The litter biomass of JP1 and JP2 increased exponentially during the growing season.Although the total sulfur (TS) contents in leaves, stems or litter of JP1 and JP2 fluctuated greatly during the growing season, they all initially increased and then decreased.In comparison, values in roots decreased at all times following an exponential decay model.The TS accumulation amount and rate (VS) of different organs and litter also had seasonal changes, and the values of above-ground organs of JP1 were much higher than those of JP2.Moreover, the TS accumulation amount and VS of above-ground parts were higher than those of below-ground parts.The S allocation ratios of different parts of JP1 and JP2 also had significant differences.Leaves had the highest allocation ratio, and values of JP1 and JP2 were (38.34 ± 16.19)% and (66.27 ± 12.09)%, respectively, indicating that leaves were the most important site of S storage.国家自然科学基金(40803023);中国科学院知识创新工程重要方向项目(KZCX2-YW-223);山东省自然科学基金重点项目(ZR2010DZ001);厦门大学滨海湿地生态系统教育部重点实验室基金(Cwel0903)资