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The results showed that the first canonical correlation coefficient between aldehydes, ketones, esters and the total quantity of each kind of ingredient and smoking quality achieved 5 % or 1 % remarkable level. And their correlation depended mainly in the correlation between phenylacetaldehyde, furfural, megastigmatrienone-1, megastigmatrienone-3, geranylacetone,β-damascenone, keto-isophorone, dihydroactinidiolide and smoking quality.

结果表明:醛类成分、酮类成分、酯类成分与香气质、香气量的第一典型相关系数达到5%或1%显著水平,各类成分总量与香气质、香气量的第一典型相关系数达到1%极显著水平,其相关关系主要表现在苯乙醛、糠醛、巨豆三烯酮1、巨豆三烯酮3、香叶基丙酮、β-大马酮、氧化异佛尔酮、二氢猕猴桃内酯等成分与香气质、香气量的相关上。

Any of various plants of the genus Trillium, of North America, the Himalaya Mountains, and eastern Asia, usually having a single cluster of three leaves and a variously colored, three-petaled flower .

延龄草一种延龄草属的植物,产于北美洲、喜马拉雅山脉和东亚,通常有三片轮生的叶和各种颜色的三瓣花

As the complete characteristic curves of reversible pump turbine are often used to calculate the instantaneous parameters, this paper studies the characteristic curve and the wicket closure and opening law in pumped storage plants.Chapter 1 presents the importance and the necessity of this study and reviews the previous related research on hydraulic transient process and valve regulation in pumped storage plants.Chapter 2 analyzes the six collected characteristic curves of reversible pumped turbine and studies their diversification from the point of view of specific speed. The six collected discharge and moment curves with maximum efficiency have been fitted to piecewise continuous curves. This curve-fitting procedure is listed.Chapter 3 takes Liyang Pumped storage plant as an example and analyzes the effect of different characteristic curves on regulation guarantee parameters and the variety of its trochoid during the same operation status.Chapter 4 takes three pumped storage plants with different heads as examples and studies the characteristic of coordinated closure with wicket gate and ball valve and its effect on dynamic pressure in the spiral case, inlet pressure in the draft tube and the rise of rotating speed.Chapter 5 summarizes this paper and point out what should be done in the future research.

由于在过渡过程分析计算中,需要频繁利用可逆式机组的全特性曲线推求机组的瞬时参数,所以本文就特性曲线及关闭规律问题进行了研究,其主要内容如下:第1章,指出本文研究的意义和目的,回顾前人对水力过渡过程、抽水蓄能电站及阀调节的研究成果,在此基础上提出本文的研究内容;第2章,针对收集到的六套特性曲线,从比转速的角度出发来研究可逆式机组特性曲线的变化规律;并对六套曲线的最高效率流量和力矩曲线进行分段拟合,得到各分段函数的具体形式,再通过举例说明最高效率曲线的拟合步骤;第3章,以溧阳抽水蓄能电站为实例,分析讨论不同比转速特性曲线对调保参数造成的影响及对于相同工况其轨迹线的变化;第4章,结合高、中、低三水头段抽水蓄能电站,在导叶直线关闭的基础上,研究导叶与球阀协联关闭规律的特点及对蜗壳动水压力、尾水管进口压力及转速上升造成的影响;第5章,总结全文,提出今后研究的重点和方向。

The studies was proceeded on the the supercritical CO2 extraction technique of rotenone from Tephrosia vogelii. The extraction influences of technology conditions were systematically groped, The research results were listed as follows:1 The analysis method applied in this paper has been proved to be suitable to technology research of the studies on the SC-CO: extraction technique of rotenone from Tephrosia vogelii. 3 indexes, extraction ratio of rotenone. extraction ratio of total compounds and rotenone content percent in total compounds weight, were carried out with HPLC quantitatively determination combined with the sample weight loss after extraction. With these 3 indexes. The extraction influences of technology conditions were evaluated by synthesis. Then the best technology conditions were ascertained for different extraction aims.2 The pretreatment of rough material should be needed before extraction. Comminuting the material to 0.28mm size is most fit to SC-CO: extraction.3 Firstly static extracting 20 min then turn to dynamic doing is the better extraction mode than other ones.4 The orthogonal experiment was conduct with 3 factors and 5 levers.

本论文通过对非洲山毛豆SC-CO_2萃取中影响萃取效果的工艺条件的研究,初步得出如下结果:(1)本论文中所采用的萃取效果评价方法适宜于非洲山毛豆中鱼藤酮的超临界流体萃取技术研究,该方法具体为:HPLC定量分析非洲山毛豆SC-CO_2萃取物中的鱼藤酮含量,再结合萃取前后处理样品的重量损失,得出鱼藤酮萃取率、萃取所得粗物质萃取率和粗物质中鱼藤酮含量三个参数,以此三个指标综合评价萃取条件对萃取效果的影响;(2)通过对原料粒度对萃取效果影响的研究,结果表明SC-CO_2萃取非洲山毛豆复叶中的鱼藤酮,原料粉碎成30目粒度叶粉时萃取效果较好;(3)通过对萃取方式与萃取效果之间关系的研究,结果表明SC-CO_2萃取非洲山毛豆中鱼藤酮应采用先静态后动态的萃取方式,静态萃取时间为20min;(4)通过温度、压力和CO_2流量三因素五水平的正交试验,结果表明温度是最主要的影响因素,压力因素对鱼藤酮萃取率的影响程度高于CO_2流量,而对于粗物质萃取率和粗物质中鱼藤酮含量CO_2流量因素高于压力。

The trilobed structure of the brain, lying posterior to the pons and medulla oblongata and inferior to the occipital lobes of the cerebral hemispheres, that is responsible for the regulation and coordination of complex voluntary muscular movement as well as the maintenance of posture and balance.

小脑脑的三裂叶状组织,位于脑桥和延髓之后脑半球的枕叶下面,负责调节和协调复杂的自发肌肉运动,同时负责保持身体姿势的平衡支配心脏的副交感神经发源于延髓的迷走神经核。

The reaction kinetics of poly urethane formation and that of trimerization of isocyanate in a system of modified by urethane were studied by FTIR.

采用傅里叶快速红外光谱技术研究了氨酯改性聚异氰脲酸酯反应体系中氨酯、聚异氰脲酸酯生成的反应动力学,结果表明,在该反应体系中,氨酯反应和异氰酸酯的三聚反应是同步发生并同步进行的,其中三聚反应是一级反应;氨酯对异氰酸酯是一级反应,对聚醚二元醇为0级反应。

The reaction kinetics of polyurethane formation and that of trimerization of isocyanate in a system of polyisocyanurate modified by urethane were studied by FTIR. The results show that the two competing reactions occurred and progressed simultaneously, and the trimerization was found to be first order, and the polyurethane formation was first order with respect to the isocyanate concentration and zero order with respect to the polyol concentration.

采用傅里叶快速红外光谱技术研究了氨酯改性聚异氰脲酸酯反应体系中氨酯、聚异氰脲酸酯生成的反应动力学,结果表明,在该反应体系中,氨酯反应和异氰酸酯的三聚反应是同步发生并同步进行的,其中三聚反应是一级反应;氨酯对异氰酸酯是一级反应,对聚醚二元醇为0级反应。

Borrows me 3000 虎贲, turns round my enormous and powerful China,the Danube River bank waters a horse, storehouse leaf island firstprize snow; Shore of the Black Sea fishes, Lake Baikal draws a bow;The South China Peninsula visits antiquities, east in the nationalcapital offers a sacrifice to a Chinese row ancestor!

轮流回合我国巨大的,强大的中国,多瑙河河岸水域马,库叶岛firstprize雪;岸上的黑海鱼类,贝加尔湖得出弓;华南借用了我三千虎贲,转折圆我的巨大的,强大的中国,多瑙河河岸水域马,库叶岛firstprize雪;岸上的黑海鱼类,贝加尔湖得出弓;南中国半岛参观古物,东在nationalcapital提供了不少代价,中国连续祖先!

Over the last thirty years, Joseph has directed over fifty stage productions, including classical, contemporary, musical theatre and opera, in America, Great Britain and China, such productions include Romeo and Juliet, Richard III, A Midsummer Night's Dream, The Alchemist, The Sea Gull, Three Sisters, Wild Duck and Fiddler on the Roof, at such notable venues as The Welsh National Theatre, The Royal Court Theatre, The Haymarket Theatre, in Great Britain and numerous theatres throughout America as well as several in China.

约瑟夫已在美国、英国和中国导演过近五十部古今话剧、音乐剧和歌剧,包括《罗密欧与朱丽叶》,《理查三世》,《仲夏夜之梦》,《炼金术士》,《海鸥》,《三姊妹》,《野鸭》和《屋顶上的小提琴手》等,曾工作过的剧院有威尔士国家剧院,英国皇家剧院,海马克剧院等。

Joseph Graves is the Artistic Director of Beijing Institute of World Theatre and Film which produces theatrical productions, promotes and sponsors artistic/cultural exchange between the professional theatre communities of China and those of other countries, as well as facilitates university theatre education across China's Mainland Over the last thirty years, Joseph has directed over fifty stage productions, including classical, contemporary, musical theatre and opera, in America, Great Britain and China, such productions include: Romeo and Juliet, Richard III,A Midsummer's Night Dream, The Alchemist, The Sea Gull, Three Sisters, Wild Duck and Fiddler on the Roof , at such notable venues as: The Welsh National Theatre, The Royal Court Theatre, The Haymarket Theatre, in Great Britain and numerous theatres throughout America as well as several in China.

北京大学外国戏剧与电影研究所艺术总监。约瑟夫已在美国、英国和中国导演过近五十部古今话剧、音乐剧和歌剧,包括《罗密欧与朱丽叶》,《理查三世》,《仲夏夜之梦》,《炼金术士》,《海鸥》,《三姊妹》,《野鸭》和《屋顶上的小提琴手》等,曾工作过的剧院有威尔士国家剧院,英国皇家剧院,海马克剧院等。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

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