A Study on the Linguistic Features of the Graduation Thesis of Thai Students Majoring in Business Chinese

本研究通过对比分析的方法考察了中国国贸专业本科毕业论文和泰国经贸汉语专业本科毕业论文在语言特征上的差异，并根据研究发现提出了针对泰国经贸汉语专业本科毕业论文写作的教学建议。研究以语料库为依托，收集了厦门大学海外教育学院泰国经贸汉语专业留学生本科毕业论文41篇和中国名牌大学相应专业本国学生优秀毕业论文41篇，并通过语料分析工具以及计算机编程等手段，统计了样本语料在语篇基本特征、Biber多维度特征以及汉语书面语语体理论的量化指标等三个方面共计70多个语言项目的现频，并进行了各语言项目的独立样本t检验。 其研究结果为：首先在基本数据分析中，中国国贸专业A级本科毕业论文大量使用中高级词汇，句数上长...This paper investigates the differences in the characteristics of Chinese undergraduate thesis and the graduation thesis of Chinese trade in economics and trade in China, And puts forward the teaching suggestions for the writing of Chinese undergraduate thesis of economics and trade in Thailand according to the research findings.The Based on the corpus, this paper collected 41 articles on the grad...学位：教育硕士院系专业：海外教育学院_汉语国际教育硕士学号：2652015115204

A Study of Productivity Change and Its Influences on China’s Service Industry

服务业，在中国也被称作是第三产业，是一国国民经济的重要组成部分之一， 其发展水平已成为衡量一个国家经济发展水平的重要准则。服务业生产率的高低 也成为判断一国现代经济体是否发达的重要标志之一。中国服务业发展起步较晚， 但发展速度很快，同时也存在很多问题。随着服务业在中国国民经济中发挥的越 来越大的作用，服务业的发展日益引起政府的重视和学者的兴趣，对服务业的研 究也日渐深入。 本文将在学者的已有研究成果基础上，运用1996-2011年间中国服务业分行 业数据，采用基于数据包络分析法（DEA）的Malmquist生产率指数法，分两段 测算并分析中国服务业全要素生产率的变化情况，而后着...The service industry, which was also referred to as the tertiary industry in china,is an important part of a country’s national economy. And its level of development has become a main criteria to measure a country’s development. The level of productivity of service sector has also become one major indicator to judge whether a country’s modern economy develops well or not. The service industry of C...学位：经济学硕士院系专业：经济学院_应用经济学学号：1572010115182

肾移植患者伏立康唑与他克莫司药物相互作用的病例分析

目的探讨他克莫司(TAC)和伏立康唑(VRC)相互作用的机制,为临床合理用药提供依据。方法观察分析1例服用TAC的肾移植术后随访患者,在应用VRC治疗肺部真菌感染前后,TAC体内药物浓度的变化。结果联合用药前,TAC平均谷浓度C0为4.95ng·m L-1(4.3~6.0 ng·m L-1),平均C0/D为2.475 ng/(mg·m L)(2.15~3.0 ng/(mg·m L)),合用VRC后,C0为27.0ng·m L-1,C0/D为13.5 ng/(mg·m L),比未用VRC之前C0/D升高了445.5%。结论长期服用TAC的肾移植术后患者在应用VRC治疗肺部真菌感染时,应综合考虑患者遗传因素(CYP2C19和CYP3A5基因多态等)和非遗传因素,个体化给药。二者相互作用的机制是:VRC抑制肝脏CYP3A4/CYP3A5酶,使TAC的药物浓度显著升高;CYP2C19和CYP3A5基因多态在TAC与VRC相互作用中起了重要作用

微博的盈利模式新探

本文采用文献资料研究和案例分析方法,对微博盈利模式进行了探讨。本文认为微博是一种具有“信息传播性“和“社交性“双重属性的社会化媒体,属性决定了其发展方向和借鉴对象,并由此对国内微博盈利模式提出六点建议:推广实名制,建立用户细分数据库,推出自助广告平台;多元化广告形式;吸引企业进驻;提供增值业务;与运营商合作分成,与其他网站对接;强化实时搜索能力,拓展搜索业务。中央高校基本科研“不同文化下内隐思维方式对消费者决策的影响”(2010221086)的资

Partitioning and transport of Polycyclic Aromatic Hydrocarbons in surface water from the downstream to Lingdingyang of Pearl River

为了研究河口水体中多环芳烃(PAHS)的相态分布、传输特征及其变化趋势,本文沿珠江下游至河口对表层水体PAHS进行采样分析。结果显示,16种优控PAHS的总浓度为(17.50~168.35)ng/l,平均83.40 ng/l,其中溶解相为(3.76~83.60)ng/l,颗粒相为(1.59~84.75)ng/l。PAHS浓度自下游至伶仃洋有波动降低的趋势,该趋势受陆源的持续输入、浮游植物的吸附吸收以及海水的稀释作用等因素的共同影响;PAHS组成及两相分配的变化主要受控于输入特征、悬浮颗粒物和黑碳吸附以及盐析效应等环境因子。荧蒽和芘的分配系数kP自珠江下游至伶仃洋的逐渐下降也说明了海水的稀释显著降低了悬浮颗粒物对PAHS的吸附。另外,特征化合物比值沿程的变化不仅指示了PAHS在广州段水体中较长的停留时间,也说明了虎门河口存在持续的PAHS输入。利用主因子分析和多元线性回归的方法,指示出煤和木材燃烧以及机动车排放是该区域表层水体PAHS污染的最主要来源,约贡献了80%的PAHS输入。In order to study the phase distribution,transport and variation of polycyclic aromatic hydrocarbons(PAHs),surface water samples were collected along the downstream to Lingdingyang of Pearl River.The total concentrations of 16 US EPA PAHs ranged from 17.50 ng /L to 168.35 ng /L with the average of 83.40 ng /L [dissolved phase:(3.76 ~ 83.60) ng /L,particle phase:(1.59 ~ 84.75) ng /L].The declining trend of PAHs concentrations was showed from the downstream to Lingdingyang under the influence of the terrestrial continuous inputs,phytoplankton adsorption and seawater dilution.Variations of PAHs composition and partitioning were controlled by input pathway,adsorption of suspended particulate matters(SPM) and black carbons and the salting out effect.The partition coefficients of Fluo and Py decreased gradually indicated that the water dilution affected the adsorption of SPM to PAHs.In addition,the trend of Fluo /(Py + Fluo) suggested the longer retention time of PAHs in downstream of Pearl River and the continuous inputs of PAHs in Humen estuary.The principal factor analysis indicated the coal and wood combustion and vehicle emissions were the major sources of PAHs in the surface water,which contributed almost 80%of PAHs input.国家自然科学基金项目(41276066

Determination of Estrogenic Compounds in Water of Jiulong River Using Polar Organic Chemical Integrative Sampler

极性有机物一体化采样器(POCIS)作为富集水体中有机物的新型采样技术,可以反映目标物在被测水体中的时间权重浓度,因此在环境监测中是对主动采样方式的重要补充.本研究采用POCIS进行了4种固醇类雌激素化合物(雌酮、雌二醇、雌三醇及雌炔醇)的富集动力学,以及温度和目标物浓度对POCIS富集雌激素影响的实验室模拟研究.结果表明,POCIS对目标化合物的富集放置时间7 d内呈现显著的线性关系(r2≥0.988 1,P12%),随着温度的升高,目标化合物在POCIS上的采样速率减小.而目标物浓度对POCIS富集没有显著的影响(rSd 12%).As for different concentrations of target compounds,the sampling rate was not affected by the concentrations( RSD < 5%).After laboratory experiments,an environmental field study was performed in Jiulong River.The results showed that there was a relatively good correlation between the measured and calculated values( r2= 0.720 9,P < 0.001).It demonstrated that POCIS can be used in aquatic field systems.近海海洋环境科学国家重点实验室访问学者基金项目; 海洋公益性行业科研专项(201105013

创新高校现代教育技术服务管理模式的探讨

在教育信息化发展的大背景下,高校现代教育技术的服务工作呈现出新的趋势与特点,本文通过对其特征的总结与归纳,从逻辑上将服务职能划分为核心技术、技术支持与服务支持三大类职责并加以对比分析。随后在该分类模型基础上提出创新性的服务管理模式的设计原则和一套创新性的服务管理模式方案,用以指导我们的具体工作与实践;帮助现代教育技术部门更好地服务于师生的教与学;提升高校的教学环境;提高教学的质量和效益

H_2S gas sensitivity of UV light activated WO_3 gas sensors

以热氧化钨丝法制备的WO3纳米材料为基材制备了厚膜气敏元件,在常温、紫外光激发条件下实验测试了所制纯WO3气敏元件对不同体积分数的H2S气体的气敏特性曲线,探讨了元件对H2S的灵敏度与紫外光的辐射通量密度的依赖关系。结果表明,常温、无紫外光照下WO3气敏元件对H2S不敏感,而在常温及紫外光激发下WO3气敏元件对H2S的灵敏度显著增大,且随着紫外光辐射通量密度增加,元件对H2S的灵敏度先增大而后减小。The thick film gas sensors were prepared by using WO3 nano-materials that prepared by the method of thermal oxidation of tungsten.Under the condition of room temperature and UV excitation,gas sensing characteristic curves of the prepared pure WO3 gas sensors to H2S gas with different volume fractions were tested.Dependencies between sensitivity of WO3 gas sensors to H2S and UV radiant flux density were investigated.The results show that under the room temperature condition,the WO3 gas sensors are not sensitive to H2S without UV irradiation,while the WO3 gas sensors are significantly sensitive to H2S with UV excitation,and with the increase of UV radiant flux density,the sensitivity of gas sensors to H2S first increases and then decreases.福建省省属高校科研专项资助项目(No.JK2011039); 福建省自然科学基金资助项目(No.2012D110;No.2013J05014); 国家级大学生创新项目资助(No.201310395003

Catalytic Behaviors and Stability of Aerogel Silica-Supported Ni Catalysts for the Partial Oxidation of Methane into Synthesis Gas

以常压有机溶剂置换(A)和溶剂置换-表面改性(b)方式制备的两种SIO2气凝胶(SIO2-A(或b)型气凝胶,记为SIO2-A(Or b)g)为载体,采用常规浸渍法和聚乙烯吡咯烷酮(PVP)添加浸渍法合成不同SIO2气凝胶负载的nI/SIO2催化剂,并考察其催化的甲烷部分氧化(POM)制合成气的反应性能.结果表明,各催化剂的初始反应性能相近,但nI/SIO2-bg的POM稳定性明显较nI/SIO2-Ag的差,而PVP添加制备的催化剂稳定性则获明显改善,nI/SIO2-Ag-PVP、nI/SIO2-bg-PVP上POM稳定性相近.结合X射线衍射(Xrd)、程序升温还原反应(H2-TPr)、高分辨透射电镜(TEM)和brunAuEr-EMMETT-TEllEr(bET)等表征结果的分析发现:(1)SIO2-Ag表面上存在一定量的羟基,可促进亲水性金属物种与其的相互作用,而SIO2-bg表面上基本为有机基团,与亲水性金属物种几乎无作用;(2)PVP的存在可使金属物种进入亲/疏水载体孔道深处,抑制焙烧中载体骨架的收缩和金属颗粒的生长,进而促进金属载体的相互作用.这二者均能有效地提高催化剂的POM反应稳定性.Two types of aerogel silica,denoted as SiO2- A(or B)G are synthesized with either solvent substitution(A) or solvent substitution-surface modification(B) under atmospheric conditions.Aerogel silicasupported Ni catalysts are then prepared via impregnated(IM) and polyvinylpyrrolidone(PVP)-added IM methods,and their performances for the partial oxidation of methane(POM) are investigated.The similar initial catalytic performances(activity and selectivity) are observed over the different Ni/SiO2catalysts.With respect to POM stability,Ni/SiO2-BG is significantly worse than Ni/SiO2-AG,while catalysts with PVP addition(during preparation) exhibit a significant improvement.In this case,Ni/SiO2-BG-PVP is comparable to Ni/SiO2-AG-PVP.We characterize the catalysts with X-ray diffraction(XRD),temperature-programmed hydrogen reduction(H2-TPR),transmission electron microscopy(TEM),and Brunauer-Emmett-Teller(BET) analysis.We find that there are hydroxyls on the SiO2-AG surface that favor their interaction with hydrophilic metal species,while on the SiO2-BG surface there are organic groups that do not interact with hydrophilic metal species.In addition,with the help of PVP,metal species can access the deep pores of hydrophilic/hydrophobic silica gels.Then,the contraction of the silica framework and the growth of metal particles are inhibited during calcinations,enhancing interactions between Ni and the silica gels.These(benefits from surface hydroxyls and PVP) result in significant improvements in the catalysts with respect to POM stability.国家重点基础研究发展计划(973)(2010CB732303); 国家自然科学基金(21033006;21373169); 长江学者和创新团队发展计划(IRT1036)资助~

Expression of Fusion Protein of Parathyroid Hormone and Transferrin N-terminal Half-molecule in Pichia pastoris

利用重叠PCR技术将PTH(parathyroidhormone,甲状旁腺激素)基因与TFN(transferrinN_terminalhalf_molecule,转铁蛋白N端半分子)基因在体外融合,融合基因克隆至真核表达载体pPIC9中,转化毕赤酵母GS115。转化子经甲醇诱导后,融合蛋白得到了表达并分泌到发酵上清液中。经SPSepharoseFF阳离子交换层析、PhenylSepharoseFastFlow疏水层析纯化获得了纯度大于95%的PTH_TFN样品。Westernblot分析及腺苷酸环化酶实验证明融合蛋白中的PTH具有与抗PTH抗体结合能力及刺激腺苷酸环化酶的活性,铁饱和实验证明融合蛋白中的TFN和单独的TFN具有相同铁结合能力。因而TFN可望作为PTH的天然运输载体。The fused gene (PTH_TFN) of parathyroid hormone (PTH) gene and transferring N_terminal half_molecule (TFN) gene was amplified by multiple PCR and inserted into pPIC9 vector. The recombinant plasmid pPIC9_PTH_TFN was transformed into Pichia pastoris GS115 by PEG. After methanol induction, the target protein was expressed in fermentation supernatant at high level.The fused protein PTH_TFN with purity being higher than 95% was finally obtained after purification through two_step chromatography : SP Sepharose Fast Flow and Phenyl Sepharose Fast Flow.Western blot analysis and adenylate cyclase assay proved that the fused protein exhibited the bioactivity to stimulate cAMP synthesis and the ability to bind Fe ~3+ in the Fe ~3+ saturation study as the recombinant TFN did indicating that TFN could be used as the transcellar carrier of PTH.国家高技术研究与发展项目基金资助(No.2004AA215172)。~