Research on the Development and Current Administration of Higher Education in Thailand

近年来,泰国高等教育发展迅速。截至2007年,泰国大学生在校人数已达2048997人,其中公立大学有1765409名学生,私立高校有283588名学生。目前,泰国共有165所高校,其中公立高校78所,私立高校68所,社区学院19所1。泰国高等教育近年来的发展无不与泰国的法规政策相联系,特别是在Thailand's education has a history of about 800 years.After various periods of development and reform,a relative complete system has gradually formed.In recent years,especially after the economic crisis in 1997,the Thai government enacted a series of educative action bills and plans.Under these bills and plans,the Thai government carries out the drastic reforms on higher education management

Development of New Coatings for Solid Phase Microextraction

作为一种样品前处理方法的固相微萃取(SOlId PHASE MICrOEXTrACTIOn,SPME)技术,具有操作方便、快速、灵敏和无需大量有机溶剂的优点,因此在分离分析方面得到了广泛的应用。涂层是SPME技术的核心部分,其性能决定了SPME的性能和应用范围,因此发展新型涂层一直是SPME研究和应用工作的重点。近年来随着涂层材料制备技术的发展,出现了一些新型涂层。这些新型涂层的出现进一步拓宽了SPME技术的应用范围。本文综述了近三年来SPME涂层的研究进展,并着重介绍新型涂层的制备方法和性质。As a kind of sampling preparation method,solid phase microextraction (SPME) has many advantages such as simplicity,versatility,sensitivity and solvent free.It has gained widespread acceptance in separation and analysis.As the key factor of the SPME technique,coatings on SPME fiber determine the performance and application of SPME technique.Consequently,developing new coatings is the most important work for SPME.With the development of preparation methods of SPME coatings,many new coatings have appeared in recent years,and these new coatings expand the application fields of SPME technique.This review summaries the development of new SPME coatings in the past three years,and mainly focuses on the preparation methods and properties of new SPME coatings.福建省科技重点项目(No.2007Y0032)资

螺内酯联合贝前列腺素钠对2型糖尿病肾病患者肾功能的影响

目的探讨贝前列素钠联合螺内酯治疗2型糖尿病肾病的临床研究。方法选取2型糖尿病肾病患者94例,按照随机数字表法随机分为观察组47例与对照组47例。对照组采取单用贝前列素钠治疗,观察组在对照组基础上结合螺内酯联治疗。比较两组治疗前后尿素氮、血肌酐、24 h尿微量清蛋白(m ALB)和肾小球滤过率(GFR)变化。结果观察组总有效率(93.62%)高于对照组(72.34%)(P <0.05)。两组治疗后尿素氮和血肌酐水平均降低(P <0.05);观察组治疗后尿素氮和血肌酐水平低于对照组(P <0.05)。两组治疗后mALB降低而GFR上升(P <0.05);观察组治疗后m ALB低于对照组而GFR高于对照组(P <0.05)。结论贝前列素钠联合螺内酯治疗2型糖尿病肾病患者疗效显著,能改善患者肾功能

High-Frequency and High-Voltage Characteristics on Gate Associated Transistors

【中文摘要】 建立了 GAT器件集电结耗尽层电位分布和电场分布的二维解析模型 ,定量研究了 GAT的栅屏蔽效应和 GAT的基区穿通电压 VPI,并且解释了该器件实现高频率与高电压兼容的实验结果 .该模型可供优化设计双极型高频、高压、低饱和压降功率器件参考 【英文摘要】 The two\|dimensional analytical model of the electric potential and field distribution in GAT's collector depletion layer in the cut\|off state is derived for the first time.The GAT's gate shielding effect and the GAT's base region punchthrough voltage V PI are analysed quantitatively, and the experimental results that the GATs can realize the compatibility between high frequency and high voltage is explained. This model will provide assistance to the optimal design of bipolar power transistor with...国家自然科学基金!( No.69896260 -06); 国家高技术研究发展计划( 863-715-010

试论上市公司高管薪酬的粘性——基于我国金融业上市公司的研究视角

本文以中国股票市场中金融业上市公司为样本,对高层管理人员薪酬粘性问题展开研究。研究发现,高管薪酬存在粘性,即在公司绩效上升时高管薪酬增加幅度显著高于公司绩效下降时的减少幅度。进一步研究还发现,公司规模、股权安排、负债比例等一系列特征对高管薪酬粘性具有显著的影响关系。本文研究不仅揭示我国上市公司高管薪酬变动特征,同时也为学术界进一步研究高管薪酬粘性问题提供理论基础与数据支持

Extracting condition and the activity admeasurement for pectinesterase in achenes of Ficus awkeotsang Makino

研究了爱玉子果胶酯酶的优化提取方法,并测定了不同条件下爱玉子果胶酯酶的活性及热稳定性。结果表明:爱玉子果胶酯酶抽提液中NaCl的最佳浓度是5%,最佳抽提温度是30℃,最佳抽提时间是24 h,最佳保存时间24 h;酶活测定时作用液中NaCl最适浓度范围为0.6%~1.0%,作用液的最适pH为7.0,温度30~50℃,爱玉子果胶酯酶的热稳定性良好。A method of extraction and assay for the pectinesterase were investigated and proposed as follows: the best concentration of NaCl in extracting mixtrure is 5%,the best extracting temperature is 30℃,the best extracting time is 24 hours,the best conservating time is 24 hours,the best concentration of NaCl in mixture is 0.6% to 1.0%,and maintain the pH on 7.0.Between 30-50℃,the pectinesterase in achenes of Ficus awkeotsang has a good thermal stability.福建省教育厅基金资助项目(K04029);; 福建省科技厅重点资助项目(2007S0015

The Characterization of InGaN and InGaN/GaN Quantum Wells Grown by LP-MOCVD

【中文摘要】 利用 MOCVD系统在 Al2 O3衬底上生长 In Ga N材料和 In Ga N/ Ga N量子阱结构材料。研究发现 ,In Ga N材料中 In组份几乎不受 TMG与 TMI的流量比的影响 ,而只与生长温度有关 ,生长温度由 80 0℃降低到 74 0℃ ,In组份的从 0 .2 2增加到 0 .4 5 ;室温 In Ga N光致发光光谱 (PL)峰全半高宽 (FWH M)为 15 .5 nm;In Ga N/ Ga N量子阱区 In Ga N的厚度 2 nm,但光荧光的强度与 10 0 nm厚 In Ga N的体材料相当。 【英文摘要】 InGaN bulk material and InGaN/GaN quantum well were grown by low pressure metal organic chemical vapor deposition(LP MOCVD),and they were characterized by X ray and photo luminescence(PL) maximum at room temperature.The PL full width of half of InGaN grown at 800 ℃ is 15.5 nm at room temperature and the peak wavelength is 437 nm.The In composition in InGaN did not dependent on the ratio of TMG and TMI but on the growth temperature and the In content increases from 0.22 at 800 ℃ to 0.45 at 740 ℃.The In com...福建省自然科学基金资助项目 (E9820001) ; 国家教育部高等学校骨干教师资助计划项目资

Development of New Coatings for Solid Phase Microextraction

As a kind of sampling preparation method, solid phase microextraction (SPME) has many advantages such as simplicity, versatility, sensitivity and solvent free. It has gained widespread acceptance in separation and analysis. As the key factor of the SPME technique, coatings on SPME fiber determine the performance and application of SPME technique. Consequently, developing new coatings is the most important work for SPME. With the development of preparation methods of SPME coatings, many new coatings have appeared in recent years, and these new coatings expand the application fields of SPME technique. This review summaries the development of new SPME coatings in the past three years, and mainly focuses on the preparation methods and properties of new SPME coatings

中国东南沿海港口外轮压舱水生物的调查

随机选取东南沿海港口的17艘外来船舶(含8条集装箱船和9条散货船)作为监测对象,进行压舱水浮游植物及动物的物种鉴定和丰度测定,并对监测数据进行统计学分析。检出分属于7个浮游植物门类和5个动物门类的309种外来压舱水生物(包括60种赤潮生物)。外轮压舱水生物的分布及生存状态与水样的水龄和盐度相关。船舶压舱水排放是大家熟知的外来水生生物入侵的主要媒介。本调查结果表明,中国东南沿海外来散货船的压舱水排放所具的潜在生物入侵风险比集装箱船更应受关注

Study on the construction of the integrated subject service system of the dominant characteristic subject group in the library of ethnic colleges and universities under the background of double first-rate

"双一流"使民族院校建构优势特色学科群成为必然与必需,图书馆只有建构优势特色学科群一体化学科服务体系才能满足这样的需求,其基本框架包括:学科服务组织框架、学科服务支持框架、学科馆员服务框架、馆藏资源建设框架、评估机制框架等五个方面。The"double first-rate"has become an inevitable and necessary to construct national institutions disciplines group,the library only construct disciplines group service system integration and in order to meet this demand,the basic framework includes:The framework of subject service organization,the framework of subject service support,the framework of subject librarian service,the framework of collection resources construction,the framework of evaluation mechanism and so on five aspects.广西壮族自治区教育厅高校科学技术研究项目“民族院校特色学科群学科服务研究”(KY2015LX088)； CALIS广西壮族自治区文献信息服务中心预研项目“民族院校优势特色重点学科的学科服务研究——以广西民族大学图书馆为例”(CALISGX2014016