Design and Synthesis of Nanostructure of the Ru-TM/TMO/C Catalysts and Investigation of Their Catalytic Performance in Aromatic Hydrogenation

为了提高多相催化反应中催化剂的活性、选择性与稳定性，合理设计催化剂对实现反应物高效且有选择的吸附与活化十分关键。由于大多数反应都涉及到两种或多种反应物，最理想的催化剂应可对应不同反应物，具有不同的活性位将其吸附与活化。芳烃是一种重要的化工原料和平台化合物，其重要的产品延伸是芳环加氢产物。以苯催化加氢制环己烷为例，环己烷不仅是生产环己酮、环己醇、己内酯、己内酰胺、尼龙-6与尼龙-66等的重要原料，还是一种优良的有机溶剂。因此，合理设计与开发高效且低成本芳烃加氢催化剂显得极其重要，同时对该加氢反应催化剂的研究，可获得一些加氢催化剂研究的共性问题，颇具学术研究和工业应用价值。 本研究第一部分内容是...The rational design of catalysts is very important to realize effective adsorption and activation of reactants for the enhancement of catalytic activity, selectivity and stability of heterogeneous catalysts. Because most of the catalytic reactions involve two or more reactants, an ideal catalyst should have multiple and synergetic sites that are active towards different reactants. Aromatic compoun...学位：工学博士院系专业：化学化工学院_工业催化学号：2062011015367

厦门国际马拉松赛发展研究

采用文献资料等研究方法,以我国获国际田联路跑标识赛称号的马拉松赛事为研究对象,通过对厦门市举办马拉松赛事的有利条件、发展现状、赛事成绩及奖励、赛事安全、赛事赞助5个方面进行系统分析,发现:厦门国际马拉松赛在引领国内马拉松发展趋向的同时,在赛事组织等方面也存在一些可改善的空间

Experience in constructing the marine environment science national experimental teaching demonstration centre

结合建设国家级实验教学示范中心的经验,介绍了海洋环境科学实验教学中心改革与建设的思路、措施、成效和示范辐射作用,旨在加快实验教学改革和实验室建设,促进优质资源整合和共享,培养有创新精神和实践能力的高素质海洋环境科学人才。Based on the experience in constructing the national experimental teaching demonstration centre of marine environment,Xiamen University,elaborated on the guidelines,measures,objectives,the demonstration and radiating role,aiming to in speed up the step of experimental teaching reform and construction of laboratory,promote the superior resources integration and sharing,and cultivate the innovation spirit and the practice ability of the high-quality marine environmental science personnel

基于翻转课堂的移动学习对大学英语口语表达促进的有效性研究

生态语言学认为语言的本质是人与外在世界之间的联结,促进学习者的语言交际能力其实就是设法促进学习者与语境的互动、增加语境的环境可供性。以生态语言学的可供性理论为视角,论述基于...云南省教育厅大学外语教学改革项目“基于‘互联网+’的大学外语教学创新实践”(云教高〔2016〕2号

Callus Induction and Plant Regeneration in Callistemon rigidus

以茎段、芽和叶片为材料,探讨了红千层愈伤组织诱导及植株再生的方法.结果表明:红千层的茎段、芽和叶片均可诱导出愈伤组织,通过继代培养可发育成绿色和粉红色2种类型的愈伤组织,其中绿色、致密的愈伤组织可以分化出不定芽;培养基1/2M S+6-BA 1.0 m g/L+NAA 0.1 m g/L适宜愈伤组织不定芽的诱导,在培养基1/2M S+IBA 0.25 m g/L上试管苗的生根率可达95%.Taking stem segment,bud and leaf as materials,this paper made a study of callus induction and plant regeneration in Callistemon rigidus R.Br.The results show that callus can be induced from all types of materials and after being sub-cultured,the callus will develop to two kinds of colors that are pink and green;that the pink callus will be degenerated while the compact green one will induce adventitious buds.The optimal medium for adventitious bud inducing is 1/2 MS+6-BA 1.0 mg/L+NAA 0.1 mg/L and the optimal for the rooting of test-tube plantlets is 1/2MS+IBA0.25 mg/L on which its rate can reach 95 % after being cultured for 40 days.广东省科技计划项目(2004B60302006);; 广州市科技计划项目(004Z3-E0361)的部分研究内

Callus Induction and Plant Regeneration in Callistemon rigidus

以茎段、芽和叶片为材料,研究了红千层愈伤组织诱导及植株再生的方法。结果表明:红千层的茎段、芽和叶片均可诱导出愈伤组织,通过继代培养愈伤组织可发育成绿色和粉红色2种类型,其中绿色、致密的愈伤组织可以分化出不定芽。培养基1/2M S+6-BA 1.0 m g/L+NAA 0.1 m g/L适宜愈伤组织不定芽的诱导,在培养基1/2M S+IBA 0.25 m g/L上试管苗的生根率可达95%。Taken stem segment,bud and leaf as materials,the means of callus induction and plant regeneration in Callistemon rigidus R.Br.were studied.The results showed that callus could be induced from all types of the materials,pink and green callus could be gain through subculture,and adventitious buds could be induced from the compacted greens.The optimal medium for inducing adventitious bud was 1/2MS supplemented with 6-BA1.0 mg/L and NAA0.1 mg/L,and the optimal one for test-tube plantlets rooting was 1/2MS supplemented with IBA0.25 mg/L,in which the rooting rate could be up to 95%.广东省科技计划项目(2004B60302006);; 广州市科技计划项目(004Z3-E0361

中段尿分离病原菌的分布与耐药分析

目的探讨广州黄埔区三家医院尿培养分离菌的分布特点及耐药性,为临床合理使用抗菌药物提供参考。方法收集2013年1月-2016年6月广州黄埔区三家综合性三甲医院的中段尿标本分离菌2 978株,采用全自动微生物鉴定/药敏测试系统对分离菌株进行细菌鉴定及药敏试验,观察分析病原菌分布特点及耐药性情况。结果 2 978株病原菌中革兰阳性菌546株占18.33%、革兰阴性菌2 432株占81.67%;居前四位的病原菌分别为大肠埃希菌、肺炎克雷伯菌、粪肠球菌、铜绿假单胞菌,分别占46.68%、12.29%、9.64%、6.01%;粪肠球菌对呋喃妥因、利奈唑胺、万古霉素及替加环素耐药率较低,均60%;产超广谱β-内酰胺酶(ESBLs)的大肠埃希菌和肺炎克雷伯菌检出率分别为61.01%(848/1390)和53.01%(194/366);肠杆菌科细菌对碳青霉烯类抗菌药物较敏感。结论尿培养分离病原菌以革兰阴性菌为主,耐药菌株分离率高,定期监测和分析尿培养分离病原菌的分布特点及耐药性变化,对指导临床合理使用抗菌药物具有重要意义

Testing System of Phosphor Excited by Blue LED Based on Integral Sphere

为尽可能反映荧光粉在实际工作条件下的发光性质,准确测量荧光粉的发光性能,提出了一种基于积分球的荧光粉发光性能测试系统。该系统采用蓝光lEd作为激发光源,配置有TEC控温系统对光源有效实施控温,可提供持续稳定的激发荧光粉发光。采用出光筒控制光源方向和积分球收集光线,能有效防止能量损失,提高测试的精确性。通过实验得到了不同强度蓝光激发下的荧光粉光谱功率分布以及发光效能、量子效率、光转换效率等参数的变化规律。随着驱动电流的增大,由于蓝光芯片内量子限制斯塔克效应,从而导致蓝光峰值波长出现小幅度的蓝移。三种效率在小电流下基本呈线性下降趋势,且在大电流下趋于平缓。实验结果表明,该系统及方法可以有效地评价实际lEd芯片工作状态下的荧光粉发光性能。A testing system for phosphor luminous characteristics based on integral sphere is proposed so as to show luminous characteristics of phosphor at actual operation circumstances and measure its luminous characteristics accurately.Blue LED is used as an excited source in the system.TEC temperature control system is used to control the temperature of the source effectively.And continuous and stable excited light is provided to excite phosphor illumining.Energy loss is prevented effectively and testing accuracy is enhanced for the direction of source controlled by a light tube and light ray collected by integral sphere.Based on experiments,spectrum power distributions of phosphor excited by blue light with difference light strength and variation rules of parameters such as luminous efficiency,quantum efficiency and light conversion efficiency are got.With the increasing of driving current,a small blue shift appears in blue light peak wavelength for quantum confined Stark effect in blue light chip.Three kinds of efficiency almost show linear decline trend at low current and then approach to constant at high current.Experimental results show that luminous characteristics of phosphor on real LED chip at operation state can be evaluated effectively by the system and method.国家自然科学基金项目(11104230); 福建省重点科技项目(2011H6025;2012H0039

靶向HIV-1 vif的高效siRNA的筛选及慢病毒介导的体外抗病毒研究

RNAi技术在艾滋病治疗研究中已展现出巨大的潜力,兼具高效抑制特性和保守性的siRNA靶位是其获得成功应用的重要基础。本研究选择以HIV-1 vif基因为靶区筛选高效保守的RNAi序列,共选择设计了30个识别不同位点的siRNA序列,以pSUPER为载体构建了相应的shRNA表达质粒。通过与pNL4-3质粒在293FT细胞中进行共转染抑制实验,以及对初筛获得的高效序列进行保守性分析显示siRNA-vif37序列具有高效抑制效率和较好的保守性特征。通过与pGL3-vif报告质粒的共转染实验证明siRNA-vif37具有vif基因抑制特异性。带有shRNA-vif37表达元件的重组慢病毒转导后的MT-4细胞在HIV-1NL4-3体外攻毒实验中可显示出较有效的抑制病毒复制的能力,本研究进一步对转导后细胞进行克隆化筛选,获得稳定整合shRNA-vif37表达元件的MT-4-vif37细胞克隆,该细胞具有显著的抑制病毒复制的能力,在高攻毒剂量下仍可获得良好的抑制效果。本研究为进一步应用RNAi技术进行新型艾滋病治疗方法研究提供了重要基础