Discussion on innovation of pipa performing from the development of contemporary pipa performing form——Illustrated by the case of pipa jingju playing and singing

琵琶，自东汉时期通过丝绸之路传入我国以来，其形制与演奏形式皆随着时代变迁而不断改变，成为了既可独奏又可伴奏且表现力极强的中国民族乐器之一。1949年后，受到社会环境与观众审美变化的影响，琵琶演奏艺术形式有了更丰富的发展，出现了与西方乐器协奏、民族室内乐重奏、新民乐、与戏曲合作的演奏形式。笔者受到当代琵琶演奏艺术形式发展的启发，秉承传播与继承传统艺术的理念，结合自身所学，尝试将琵琶与京剧唱腔相结合，运用琵琶演奏的多种技法来烘托京剧唱腔的独特魅力，试图在保留京剧原有唱腔的同时，又能体现琵琶这个乐器的特点，探索性地实践出琵琶京剧弹唱的艺术形式。本文试通过文献研究法、探索性实践法和跨学科研究法，就此形...Pipa is one of expressive Chinese traditional instruments which can be played for both solo and accompaniment. Since pipa was introduced to China by the silk road of the eastern han dynasty, its shape and performing have been always changing with times. Influenced by the change of society and audience aesthetical feeling, pipa performing form have been more diversified since 1949,including concert...学位：艺术学硕士院系专业：艺术学院_音乐与舞蹈学学号：1872013115360

Study on the Efficiency Assessment of Investment in Municipal Public Facilities in China ——Based on Data from Cities at Prefecture Level and above and Three-Stage DEA Method

随着我国城市化脚步不断加快，大量的资金被投入到市政公用设施的建设中。市政公用设施投资既是城市社会健康发展、居民生活质量提高的重要保证，同时也承担着刺激经济增长、实现宏观调控目标的任务，逐渐成为了地方政府公共投资建设的主要职责和公共管理的工作重点。但市政公用设施投资的效率怎样进行测度，我国各地市政公用设施投资效率高低，投资效率受到哪些因素的影响，以及如何有针对性的提高投资效率等诸多问题还有待深入的探讨，因此对地方政府市政公用设施投资效率进行评估研究具有理论与现实上的双重意义。 本文首先对国内外针对市政公用设施投资效率评估的相关理论与研究进行了较为详细的梳理，并对我国市政公用设施投资的发展现状和...With the accelerating pace of urbanization in China, large amount of capital is invested in the construction of municipal utilities. Investment in municipal public facilities not only is an important guarantee for the urban social development and living standard of people improvement, but also plays a role in stimulating economic growth and achieving macro-control, so it becomes the focus of local...学位：经济学硕士院系专业：经济学院_财政学学号：1552013115185

Preliminary Study on Toxic Effects of Polycyclic Aromatic Hydrocarbons on Adult，Embryo and Larva of Sebastiscus marmoratus

在室内实验条件下将褐菖鲉(Sebastiscusmarmoratus)置于含0号柴油水溶性成分(dieseloilsolublefraction,DWSF)的海水中，浓度分别为0.02、0.1和0.5mg/L。每天更换一半相同浓度的海水，并于暴露后第0、7、28、84d以及解除污染成分的第7、28d取样，通过测定肝脏中解毒系统两个阶段代表性酶EROD及GST活力，以及胆汁中多环芳烃（PAHs）典型代谢物含量，研究污染物在褐菖鲉体内的代谢情况及其对代谢系统的影响；对血清和性腺中性类固醇激素如睾酮、雌二醇水平用免疫放射法进行测定，采用酶联免疫吸附方法检测血清中卵黄蛋白原（VTG）的含量，并对性腺进...In experimental condition, Sebastiscus marmoratus were exposed to diesel oil soluble fraction (DWSF) at concentrations of 0.02, 0.1, 0.5 mg/L. Samples were taken after exposure for 0, 7, 28, 84 days and transferred to recovery tank for 7, 28 days, respectively. Hepatic EROD, GST activities, content of GSH and biliary PAHs metabolites were detected to investigate possible influence on hepatic detox...学位：理学硕士院系专业：生命科学学院生物学系_动物学学号：20032601

Effect of angle of slit on shedding vortex of slotted circular cylinder

开缝圆柱绕流作为钝体绕流研究的分支,具备很强的应用前景,但是对其复杂的流动现象的物理本质的理解仍不完善。本文采用流动显示技术和粒子成像测速技术(; PIV),探究缝隙对开缝圆柱流场结构的影响,在数据处理方面采用本征正交分解(POD)方法对开缝圆柱流场信息进行了重建。实验研究表明:; 在一定雷诺数范围内,开缝圆柱缝隙的存在从根本上改变了圆柱绕流近区尾流的结构;; 开缝圆柱脱落涡的脱落频率对开缝圆柱缝隙倾斜角具有一定的敏感性,随着缝隙倾斜角的增大其斯特劳哈尔数逐渐变大,对比发现开缝圆柱狭缝比(缝隙/直径)为; 0.15时较0.10的斯特劳哈尔数具有更强的稳定性。Vortex shedding from a circular cylinder with a slit which belongs to; the unsteady flow of bluff bodies has very strong application prospects.; However,it is still difficult to fully understand the complex flow; phenomenon. Using flow visualization and particle image velocimetry; (PIV) measurement,we explored the influence of a slit on the flow field; structure. Adopting the method of proper orthogonal decomposition (POD),; we reconstructed the flow field in the series of operations on PIV data.; The experimental results show that the flow in the slit demonstrates; periodic motion,and this oscillating vent-flow greatly alters the near; wake flow features within a certain range of Reynolds number. Shedding; vortex frequency of slotted cylinder has certain sensitivity with the; angle of slit. The Strouhal number increases gradually with the increase; of the angle,and the Strouhal number of slit ratio (slit/diameter); equals to 0.15 is more stable than that of slit ratio equals to 0.10.国家自然科学基金面上项目; 福建省科学基

Selective Ethylene Oligomerization Catalyzed by the Chromium Complex Bearing N-Tetrahydrofurfuryl PNP Ligand

通过胺基锂盐分离的方法合成了一种未有报道过的N-四氢糠基PNP配体E.; E分别与CrCl_3(THF)_3和Cr(CO)_6反应生成化合物[{Ph_2PN(CH_2OC_4H_7)PPh_2}CrCl_2(mu-Cl; )]_2(1)和[Ph_2PN(CH_2OC_4H_7)PPh_2]Cr(CO)_4(2).这三个化合物通过谱学和元素分析表征,化合物2进一步经; 过X射线单晶结构确认.在甲基铝氧烷(MAO)或其它助剂作用下,考察了1、2以及E/CrCl_3(THF)_3、E/Cr(acac)_3、E/Cr; Cl_2(THF)_2催化体系催化乙烯齐聚的性能.这些体系高选择性地催化乙烯四聚,最高活性为15.9 kg(product)/g(Cr)·h,; 1-辛烯的选择性最高可达63.6%.The N-tetrahydrofurfuryl diphoshinoamine (PNP) ligand (E) was synthesized by means of two-step salt elimination reactions where separation of the two kinds of the aminyl lithium salts for the respective reactions is necessary for obtaining a high yield of E. The ligand reacted with CrCl3(THF)(3) and Cr(CO)(6) to give P,P-chelation complexes [{Ph2PN(CH2OC4H7)PPh2} CrCl2(mu-Cl)](2) (1) and [Ph2PN(CH2OC4H7)PPh2] Cr(CO)(4) (2), respectively. Complexes E, 1 and 2 were characterized by spectroscopy and elemental analysis, of which complex 2 was further confirmed by X-ray crystallography. Upon activation with methylaluminoxane (MAO) or AlEt3, the catalyst systems including 1, 2, E/CrCl3(THF)(3), E/Cr(acac)(3) and E/CrCl2(THF)(2) were investigated. The best catalytic activity was achieved by 15.9 kg (product)/g (Cr)circle h in which a selectivity of 63.6% for 1-C-8 was obtained.National Natural Science Foundation of China [21473142, 21673191];; Innovative Research Team Program [IRT_14R31

同轴旋转圆台环隙流动机制及实验研究

同轴旋转圆台环隙内流体的流动是基于经典的两同轴旋转圆柱环隙内泰勒库特流的一种扩展研究。通过流动显示实验和PIV粒子图像测速技术对圆台环隙的内部流场进行可视化和定量化的研究,分析涡运动的周期性规律,探究圆台环隙内雷诺应力分布和水位高度对流场的影响。研究表明,随着时间的发展,涡列周期性明显且整体在下移,当脉冲数为100脉冲/s时,环隙内形成均匀分布的正反交替的涡;当脉冲数为200~500脉冲/s时,存在快慢交替的分裂周期;在3种水位高度下也都存在明显周期性分裂,只是周期时间和涡的个数不同;平均流场存在上凸型外向流和下凹型内向流2种流态,流态的差异是离心力与静压力双重作用的强弱变化所致;雷诺应力分布中,径向正应力占主导,并主要集中在环隙中部。国家自然科学基金(11072206);;福建省自然科学基金(2012J01023)~

Therapeutic Observation ofNa Zhi Method plus Electroacupuncture for Poststroke Uninhibited Neurogenic Bladder

目的 观察纳支法结合电针治疗中风后无抑制性神经源性膀胱的临床疗效.方法 将120例脑血管病变引起的无抑制性神经源性膀胱患者随机分为治疗组和对照组,每组60例.治疗组采用纳支法结合电针治疗;对照组采用电针疗法.每日1次,每次30 min,治疗2星期.观察两组治疗前后日排尿频率测试分度和膀胱最大容量的变化,并比较临床疗效.结果 治疗组总有效率为98.2%,愈显率为89.5%;对照组总有效率为93.1%,愈显率为72.4%.两组愈显率比较,差异有统计学意义（P〈0.05）.两组治疗前日排尿频率测试分度比较,差异无统计学意义（P〉0.05）;两组治疗前后日排尿频率测试分度比较,差异有极显著统计学意义（P〈0.01）;治疗组治疗后日排尿频率测试分度与对照组比较,差异有统计学性意义（P〈0.05）.两组治疗前膀胱最大容量比较,差异无统计学意义（P〉0.05）;两组治疗前后膀胱最大容量比较,差异有极显著统计学意义（P〈0.01）;治疗组治疗后膀胱最大容量与对照组比较差异有统计学意义（P〈0.05）.结论 电针治疗无抑制性神经源性膀胱疗效显著,结合纳支法疗效明显优于单纯电针.Objective To observe the clinical efficacy of Na Zhi method （midnight-noon ebb-flow method） plus electroacupuncture in treating poststroke uninhibited neurogenic bladder.Method A total of 120 patients with uninhibited neurogenic bladder due to cerebrovascular diseases were randomized into a treatment group and a control group, 60 cases in each group. The treatment group was intervened by Na Zhi method plus electroacupuncture; the control group was intervened by electroacupuncture. The intervention was conducted once a day, 30 min each time, for a total of 2 weeks. The daily voiding frequency index and maximum cystometric capacity （MCC） in the two groups were measured before and after the intervention, and the clinical efficacies were compared.Result The total effective rate and markedly effective rate were respectively 98.2% and 89.5% in the treatment group versus 93.1% and 72.4% in the control group. There was a significant difference in comparing the markedly effective rate between the two groups （P〈0.05）. There was no significant difference in comparing the daily voiding frequency index between the two groups before the intervention （P〉0.05）; the daily voiding frequency index was significantly changed after the intervention in both groups （P〈0.01）, and the daily voiding frequency index of the treatment group was significantly different from that of the control group after the intervention （P〈0.05）. There was no significant difference in comparing the MCC before the intervention between the two groups （P〉0.05）; the MCC was significantly changed after the intervention in both groups （P〈0.01）; the MCC of the treatment group was significantly different from that of the control group after the intervention （P〈0.05）.Conclusion Electroacupuncture can produce a significant efficacy in treating uninhibitedneurogenic bladder, while it can produce a more significant efficacy when combined withNa Zhi method

Experimental Investigation with PIV on Characteristics of Shedding Vortices in Wake of Flapping Wings

通过色流实验和粒子成像测速技术（particle image velocimetry,PIV）对扑翼近场尾流脱落涡的结构轨迹和能量进行了定性及定量研究.结果表明：因展向流动充分性的不同,存在两种牛角型涡系结构;上下扑时翅翼交替产生顺时针和逆时针脱落涡,两涡运动轨迹呈近似弧形对称,对称轴的仰角略大于攻角;脱落涡的涡心涡量在上下扑极点达到最大值,环量最大值出现在到达极点前的1/5~2/5周期之间;产生脱落涡的半周期内,涡的平均环量都随减缩频率的增大而增大,减缩频率较低时,下扑平均环量大于上扑平均环量,减缩频率较高时则相反;振幅对涡能量影响明显,减缩频率为2~2.5时,振幅±40°时的涡平均环量约是振幅±30°时的两倍,减缩频率越大振幅影响越明显.Qualitative and quantitative studies on the vortices structure, motion path and energy in the near-f ield wake of flapping wings were conducted through dye-flow tests and particle image velocimetry （ PIV） in tank. Results indicate that two kinds of horn-shaped vortices structures exist during f lapping under insuf f icient or suf iicient spanwise flow. Ant iclock-wise and clockwise vortices arise alternately during downward and upward flapping, whose traces are approximately symmet-rical. The elevation angle of symmetry-axis is slight ly larger than the attack angle of flapping wings. The vort icity of vortex core reaches its maximum at the top or bottom point, while the maximum circulat ion occurs at 1/5 ~ 2/5 period before the top or bottom point. The average circulations of both vortices during half period of producing them ascend with the increase of reduced frequency. At small reduced frequency, the average circulat ion during downward f lapping is larger than that dur-ing upward flapping. Contrary result is observed in case of large reduced frequency. Flapping amplitude signif icant ly inf lu-ence the vortex intensities, e.g. when reduced frequency is 2-2.5, the average circulat ion of vortices with an amplitude of ±40° is about twice that of amplitude of ±30°,and the influence grows with the increase of reduced frequency

基于Dendrinos-Sonis模型的厦漳泉大都市区产业发展研究

本文应用dEndrInOS-SOnIS模型分别对厦漳泉大都市区内部厦漳泉三市、泉州八市县和漳州十市县三次产业发展的竞争互补性进行了实证检验,结果表明中心城市厦门在三次产业中都没有很好地发挥其应有的辐射作用。三市在第二产业上都表现为竞争关系。泉州在第一产业和第三产业的发展上对于漳州是有促进作用的,而漳州在第一产业上的发展对泉州第一产业也有促进作用。泉州八市县,在第一产业上更多地表现为互补关系,第二产业则竞争互补参半,第三产业更多地表现为竞争关系。漳州市十市县较厦漳泉三市以及泉州八市县而言其竞争互补性最弱。福建省质量技术监督局科技项目(FJQI2013116