零质量射流技术的新发展及其在流动控制中的应用

零质量射流是主动流动控制的新技术。与常规射流相比,零质量射流最突出的优点在于具有零净质量流量。在应用零质量射流进行流动控制时,不再需要常规射流中必不可少的流体输送管道与其他机械部件。新型等离子射流较传统零质量射流可以获得高能/高动量零质量射流,可应用于宏观大尺度上的主动流动控制。文中阐述传统零质量射流和新型等离子射流的产生机制,概括和分析零质量射流在主动流动控制上的应用。福建省自然科学基金项目(A1010014

The Implementation and Application of Parallel Hausdorff Distance Algorithm

Hausdorff距离是匹配点特征的一种重要方法，在图像处理、天文、数学、网络应用、医学、经济预测等众多领域中有重要应用，特别是在图像处理的匹配识别中应用十分广泛。传统的Hausdorff距离算法计算复杂度高，计算效率低，因此提高算法效率有十分重要的。另一方面，多核计算技术是当前计算机领域的研究热点，它使计算机的计算能力显著提升，将成为一种广泛普及的计算模式。然而，要真正地凸显多核处理器的优势，软件的发展必须紧跟硬件的步伐，如何开发与多核相适应的软件日益成为计算机技术研究的热点。 本文根据当前计算机软硬件技术的发展趋势，围绕着Hausdorff距离算法并行化展开研究，旨在寻求多核平台上高效简...Hausdorff distance is an important point characteristics matching method. Widely used in image processing, astronomy, mathematics, network applications, medical, economic forecasts, and other fields, especially have a very wide range of applications in the image matching. The traditional Hausdorff distance algorithm has complex calculation and low efficiency, improves the efficiency of the algorit...学位：工学硕士院系专业：信息科学与技术学院计算机科学系_计算机应用技术学号：2212005130234

A Study on Chinese Real Estate Finance Institutions

改革开放以来，伴随着中国经济的腾飞、城市化进程的推进和住房制度改革的不断深化，城镇住宅成为中国城镇居民消费的焦点。专家预测，到2020年，我国城市化水平将提高到55％，城镇人口将达到7亿以上，按人均需住房20平方米计算，仅城镇新增人口所需住宅每年就需增2亿平方米以上。城镇居民的这一巨大住宅消费潜在需求要转化为现实的需求就离不开住宅金融行业的大力支持。但由于金融行业改革滞后等历史原因，我国住宅金融行业的发展水平一直落后于房地产行业的发展。一直以来，居民的住宅金融产品主要通过商业银行供给，其他形式的住宅金融机构和住宅金融产品因自身的缺陷未能在市场中发挥应有的作用。显然在当前中国城镇居民巨大的住宅潜...More and more people focus on the housing industry of the city with the development of Chinese economy, accompany with the progress of urbanization and housing policy innovation. The experts predict, the urbanization of China will be improved to 55% until 2020, the population in city will reach 7 hundred millions, more than 2 hundred millions m2 house need for the new increased urban peoples. It’s...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：20011516

AERODYNAMIC MOMENTS CONTROL OF WING MODEL USING PLASMA JET

为考察火花放电等离子体射流控制机翼气动力矩的效果,在NACA0021平直机翼模型上安装火花放电等离子体射流发生器,通过改变射流发生器安装位置、射流角度及加载电参数,研究其控制机翼模型气动力矩的性能及机理。在NACA0021机翼模型近前缘处,布置2个火花放电等离子体射流发生器,采用气动力测量技术,在来流风速为20 m/s时测得,攻角-4°~10°时,滚转力矩系数最大减小了0.0024,攻角为12°~16°时,滚转力矩系数最大增加了0.0021;偏航力矩系数最大减小了0.00097。实验研究结果表明:等离子体射流可改变机翼模型横航向气动力矩,并可通过改变射流角度和加载电压频率调节等离子体射流控制横向气动力矩的效果。To investigate the control effect of Spark Discharge Plasma Jets(SPJs) on the aerodynamic moments of a wing, SPJ generators were used for active flow control experimental study on an NACA0021 straight wing model. The location of SPJ generators along the chord of the airfoil, the jet flow direction relative to the chord, and the driving voltage parameters were changed to research the control effect and mechanism of SPJ generators on the aerodynamic moments of a wing model. The aerodynamic moments were measured with a six-component balance at a wind speed of 20 m/s. Two SPJ generators, arranged near the leading edge, reduced the rolling moment coefficient by a maximum of 0.0024 for angles of attack-4°~10°, but increased the rolling moment coefficient by a maximum of 0.0021 for angles of attack 12°~16°. The yaw moment coefficient was reduced by a maximum of 0.00097. The results show that aerodynamic moments control of wings can be realized using SPJs. The control effect of SPJs on the aerodynamic moments is changeable by adjusting the driving voltage frequency and the jet flow direction relative to the chord.航空科学基金项目(20141368007);; 福建省自然科学基金项目(2010J01014

走査型電子顕微鏡観察により明らかになった毛髪の損傷形態と栄養状態との関連

The relationship between food intake and the structure of hair cuticle were studied in healthy men and women of various ages. The food frequency questionnaire (FFQ) for weekdays was performed, and the ultrastructure of hair cuticle was also examined. With a scanning electron microscopy, various damages were revealed on the hair cuticle of healthy men and women. The abnormal structures of cuticle damage were classified into 7 categories; 1) peeling, 2) abrasion, 3) cracking, 4) hole formation, 5) dot staining, 6) destruction, and 7) cortex exposure. The abnormal structure of hair cuticle was observed mainly in obese people but not in lean people. Especially, the intake of more lipid, animal proteins, salt and less fiber, less mineral induced damage of cuticle structures. Among 7 categories abrasion and cracking were shown to be prominent hair damage induced by nutritional conditions

MOLECULAR MARKERS AND ITS USED IN MANGROVE GENETIC DIVERSITTY

红树林是分布于热带海岸潮间带的木本植物群落 ,由于暖洋流的影响 ,有的可分布到亚热带 ,红树林是热带、亚热带海岸重要的植被类型 ,是维护海岸生态平衡的特殊生态系。本文根据国内外近年来最新研究进展 ,对分子标记技术及其在红树植物的遗传多样性研究的应用作一些简要叙述。Mangrove are woody plant communities in the intertidal zone of tropical of coasx. By the influence of worm ocean current,some species can grow in subtropical zone.It`s a important vegetation type and an unique ecosystem for maintaining of coast ecological balance in tropical and subtropical area.An introduction on the conception and type of molecular marker was made after the reviewing the newest research progress in this field,the research advance of molecular marker used in mangroves genetice diversity was described in detail.国家教育部博士点基金项目资

Progress in studies of mangroves diversity

红树植物是分布于热带、亚热带海岸潮间带的木本植物群落 ,因适应海岸带和海涂的生长环境 ,形成了独特的形态结构和生理生态特性。红树林是海岸有重要价值的湿地。论述了红树植物的物种多样性、适应多样性、物候多样性以及分子水平的多样性及其研究进展。Mangroves are woody plant communities which occur in the intertidal zones on tropical and subtropical coast. To adapt itself to the habitat, this plant species has developed special morphological, physiological and reproductive characters. Therefore, it is an important swamp along coastline. In this paper, current progress in studies of mangroves species diversity, adaptation, phenology and molecular diversity was described

等离子体射流及其发生器研究进展

等离子体射流是近年来学术界兴起的新型研究领域。文中阐述了等离子体射流的基本概念和分类以及其技术优势,并从电极结构和驱动电源分类上重点介绍了国内外等离子体射流发生器的研究现状和前景展望。福建省自然科学基金资助项目(2010J01014

GENETIC DIVERSITY OF MANGROVE PLANT- Avicennia marina ALONG BEIHAI COAST BY RAPD

采用随机扩增多态 DNA(RAPD)分析了分布于广西北海海岸的 3个自然分布居群的白骨壤群落 ,用 15个随机引物进行 PCR扩增 ,3个居群的 RAPD多态位点的百分率分别为英罗湾 38.35 % ,大冠沙 35 .2 1%钦州湾2 9.41%。 3个居群内的平均遗传距离分别为 0 .10 8、0 .147和 0 .16 5 ;3个居群两两之间的平均遗传距离分别为大冠沙 -英罗湾 0 .135、大冠沙 -钦州湾 0 .16 3和英罗湾 -钦州湾 0 .179。结果表明 ,白骨壤居群内和居群间的遗传变异较低。Random amplified polymorphic DNA(RAPD)technique was applied to analyzing population genetics of native Avicennia marina,an wide spread species,whose natured population today is destroyed by mankind along Baihai,Guangxi coast.Leaf samples were collected form 30 natural trees in the native population and 15 arbitrary primers were used to amplify 73,71 and 68 bands that contain 28,25 and 20 polymorphic RAPD loci in three populations respectively.The mean genetic distance intra-populations were 0.165 、0.147 and 0.108;while inter-population were 0.135、0.163 and 0.179.The results showing that either the intra-or inter-population genetic variety were low.国家教育部博士点基金项目资