光纤光栅加速度传感器的研究进展

基于光纤布拉格光栅(fbg)的加速度传感器近年来受到较大的关注,这种基于波长检测的传感器在诸多领域都有良好的应用前景。该文重点对各种不同结构设计的光纤光栅加速度传感器的技术和特点做了分析,对光纤光栅加速度传感器的未来作了展望

The new changes of the family dramas of "May fourth"

文明戏时期的家庭戏与五四时期家庭戏,在家庭戏反映社会、人生、政治,家庭内部的矛盾冲突,家庭戏的人物刻画和悲剧意蕴四个方面有着显著的不同。这些不同较为多方面的反映出从文明戏时期到五四时期家庭戏的新变化。there are mainly four distinctions between the family dramas in the period of new forms of theatrical plays and that of "May fourth". They vary in aspects of the way that family dramas reflect society ,life and politics, the conflicts of the inner family, the way in which the roles are depicted and the tragic intension that those dramas convey. Thus the family dramas of "May fourth" display new changes in the four aspects

网络与大众:民间影评的新发展

近年来,民间影评尤其是网络影评形势的发展不容忽视。在追寻民间影评的发展轨迹的基础上,本文指出网络影评所具有的三个方面的独特特点。继而,进一步分析以网络影评为代表的民间影评在当今社会对中国电影走向产生的已有和潜在的影响。最后,运用相关大众文化理论阐发网络影评崛起及其产生巨大影响的原因

Ask Life for Truth－－Study on Xu Yigua’s fictions

在纷繁复杂的当代文坛，须一瓜作为频频在国内一流文学杂志发表作品的文坛新秀，其小说及创作状态值得我们关注。须一瓜曾说过，她追求表现生活表皮下、真皮下、皮下组织、肌肉下、骨头下、甚至骨髓后面的另一种“真”。本篇论文以她言说中的“生活”、“真”为关键词，探究她如何揭示生活表皮下的“真”，总结她的叙事特点并分析她的小说创作对我们当下文学创作的启示意义。论文分为三部分。第一部分，绪论。界定日常生活和日常叙事的概念。日常生活是旨在维持个体生存和再生产的日常消费活动、日常交往活动和日常观念活动的总称。日常叙事是以日常生活为取材范围、表现对象，对日常事件、生活的日常性的叙述。综述须一瓜小说研究现状，指出目前研...As a new star in the contemporary literature field,with many fictions published by the first-class domestic literature magazines, Xu Yigua’s fictions and her creative state should be attached great importance to .Xu Yigua said she was trying to seek “truth” beneath the surface of daily life.This paper tries to explore how she uncovers the truth beneath the surface of daily life,conclude her featur...学位：文学硕士院系专业：人文学院中文系_中国现当代文学学号：2005130006

Clinical research of Dexmedetomidine in epileptic resection of functional brain areas

第一部分右美托咪定和丙泊酚对癫痫病灶切除术中皮层脑电图的影响 目的观察不同剂量右美托咪定和丙泊酚对癫痫病灶切除术中皮层脑电图（electrocorticography,ECoG）的影响。 方法ASA级Ⅰ～Ⅱ择期行癫痫病灶切除术患者100例，随机分为五组（每组20例），丙泊酚1.5ug/ml组（C1组）、5.0ug/ml组（C2组）、右美托咪定0.25ug•kg-1•h-1组（D1组）、0.5ug•kg-1•h-1组（D2组）、1.0ug•kg-1•h-1组（D3组）。丙泊酚组（C1、C2组）持续输注丙泊酚，在切开硬...Part one Comparison of the effects of dexmedetomidine and propofol on electrocorticography during epileptic resection Objective To investigate the effects of different doses of dexmedetomidine and propofol on electrocorticography(ECoG) during epileptic resection. Methods One hundred cases of ASAⅠ-Ⅱepileptic patients undergoing epileptic resection were randomized into five groups(n=20cases...学位：医学硕士院系专业：医学院_麻醉学学号：2452012115312

公共投资对私人投资的拉动作用——中国当前扩大公共投资与拉动私人投资关系的实证研究

一、引言公共投资是指政府支出中资本形成的部分,主要表现为政府支出中用于改善广义的基础设施和用于社会转移支付的部分,其中基础设施投资在公共投资中是主要的,包括交通设施、能源和基础生活设施等各个方面。一般来说,公共投资主要是基国家自然科学基金资助项目;项目批准号:70803023;国务院发展研究中心资助项

公共投资在中国经济转型中有效引导教育投入机制改革的研究——基于不同教育投入形式长期经济效果的实证分析

中国经济增长转型的发展路径必然从要素拉动转向人力资本推动模式。本文通过深入研究不同教育投入机制对经济增长的具体影响,发现虽然经济发展初期人力资本贡献显著低于简单劳动和物质资本贡献,但是随着经济发展人力资本对中国经济增长贡献显著。加强人力资本贡献是我国突破经济增长瓶颈,保持经济持续增长的关键。政府主导的公共投资应正确引导并完善多层次的教育投入机制。在经济发展不同阶段教育投入方式也应有所区别,家庭投入对于初等教育效果明显,有利于初期经济的发展,随着经济的发展,经济系统对于高等教育竞争力和科研能力的要求需要政府公共投资的跟进,对于提高我国教育的长期竞争力至关重要。国家自然科学基金项目“公共投资对私人投资、国内需求的作用机制研究和效果评价”(项目编号:71003058

公共投资对教育不同阶段的影响——中国公共投资流向与教育转型的实证研究

针对传统上从教育投入回报率得出发展中国家应该偏重基础教育的观点,本文指出教育收益率只能反映直接投入的成本回报,无法反映教育的系统经济影响,本文通过实证研究指出在当前发展阶段,高等教育对于中国经济增长和创新的贡献显著大于基础教育,因此高等教育是中国当前应该重点发展的教育形式。高等教育的创新性是我国经济转型的基础,有助于缩小中国和发达国家的技术差距。因此我国教育政策应该转向对高等教育的重视,否则经济转型和创新型国家建设只能是一个口号。国家自然科学基金项目(项目编号:71003058)“公共投资对私人投资、国内需求的作用机制研究和效果评价”成果;“中央高校基本科研业务费专项资金”(项目编号:2010221054)的资助---

我国地方基础设施发展趋势及成因分析

近年来,亚洲两个发展中大国——中国和印度虽然都取得了持续高速经济增长,然而中国经济在持续高速增长的同时,基础设施水平的变化也让人惊诧不已,但印度的基础设施却严重滞后,成为其进一步发展的瓶颈。为什么我国能建设良好的基础设施

Digestive enzyme activities in larval,juvenile and early young fish of Boleophthalmus pectinirostris

采用酶学分析的方法,研究了大弹涂鱼前期仔鱼、后期仔鱼、稚鱼和早期幼鱼发育过程中胰腺酶、肠酶和胃蛋白酶活性的变化。结果表明,(1)4种胰腺酶(淀粉酶、胰蛋白酶、糜蛋白酶和羧肽酶A)和8种肠酶(麦芽糖酶、蔗糖酶、乳糖酶、海藻糖酶、纤维二糖酶、碱性磷酸酶、氨基肽酶和γ-谷氨酰转肽酶)的比活力均在仔鱼期较高,稚鱼期降至最低,早期幼鱼则急剧上升,而每尾鱼酶的总活力却随着幼体的发育而逐渐增加;(2)胃蛋白酶活性在后期仔鱼才开始检测到,此后一直呈显著上升趋势;(3)早期幼鱼肠部位的4种胰腺酶活性分别占其酶总活性的百分比均显著高于稚鱼期;(4)稚鱼期仅3种肠酶(麦芽糖酶、纤维二糖酶和γ-谷氨酰转肽酶)高度富积在肠刷状缘膜上,而早期幼鱼除蔗糖酶外的7种肠酶在肠刷状缘膜上的富集系数均大于5.1。由此得出结论,(1)在仔鱼期,蛋白质的消化是依靠胰腺酶进行的,进入稚鱼期,胃蛋白酶开始对蛋白质的消化起重要作用;(2)在早期幼鱼,胰腺分泌机制及肠细胞已完全成熟,标志着成鱼的消化模式的形成。The mudskipper Boleophthalmus pectinirostris is a commercially important fish in China.At present,this species is widely farmed in the southeastern coastal waters of China.Studies have been focused on early development and larval rearing.Early larval feeding habits have been documented.However,little is known about the digestive enzymes at the early stage of Boleophthalmus pectinirostris.The purpose of this study was to investigate the digestive enzyme activities of this species in order to know its nutritional requirements and establish the feeding protocols for optimizing larval mass rearing production.Changes of pancreatic,intestinal enzymes and pepsin activities in prelarva,postlarva,juvenile and early young fish of Boleophthalmus pectinirostris were investigated by means of enzyme analyses.In order to obtain pancreatic segment(PS) and intestinal segment(IS),juvenile and early young fish were cut into four parts: head,PS,IS and tail.The intestinal segments were homogenized to purify intestinal brush border membranes(BBM).The secretion levels of pancreatic enzymes were expressed as percentages of the segmental activity in the IS related to total activity(PS + IS).The establishment of an efficient intestinal BBM digestion represents the adult mode of digestion by enterocytes.And the degree of purified intestinal BBM was estimated by the enrichment factors and the activities of the intestinal enzymes.The results of this study show that the specific activities of four pancreatic enzymes(amylase,trypsin,chymotrypsin and carboxypeptidaseA) and eight intestinal enzymes(maltase,sucrase,luctase,trehalase,cellobiase,alkaline phosphatase,aminopeptidase and γ-glutamyltranspeptidase) are higher in the larval stage,decrease to the lowest levels in the juvenile stage,and increase rapidly in the early young stage.However,the total enzyme activities of individual increase with the development of larvae.Pepsin is initially detected in the postlarval stage,and then it continuously increases rapidly.The percentages of four pancreatic enzymes activities accounting for the total activities are significantly higher in the early young fish than in the juvenile in the intestinal segment.Only three enzymes(maltase,cellobiase and γ-glutamyltranspeptidase) are highly enriched in the intestinal brush border membranes in the juvenile.However,enrichment factors of seven intestinal enzymes in intestinal brush border membranes of the early young fish are all above 5.1 except for sucrase.In conclusion,in the larval stage,protein digestion depends on pancreatic enzymes;and when the larvae develope into the juvenile stage,pepsin plays an important role in protein digestion.The complete achievement of the secretion mechanisms of pancreas and maturation of enterocytes in the early young fish indicate the formation of an adult fish mode of digestion.国家自然科学基金资助项目(40476056);; 福建省重大科技项目(2003No.26);; 福建省科技重大专项(2004SZ01-02