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局部扩张动脉管血液振荡流的切应力分布

力学季刊 2003年第1期24卷 1-8页

作者：龚克勤柳兆荣复旦大学生物力学实验室上海200433

本文求解局部缓慢扩张动脉管中血液振荡流的基本方程,得到血管内血液的流速与压力梯度的关系。通过导出压力梯度沿局部扩张管轴向的变化特性,建立利用扩张段上游血管均匀段中心流速波形确定局部扩张管中血液流的速度和切应力分布的方法... 详细信息

本文求解局部缓慢扩张动脉管中血液振荡流的基本方程,得到血管内血液的流速与压力梯度的关系。通过导出压力梯度沿局部扩张管轴向的变化特性,建立利用扩张段上游血管均匀段中心流速波形确定局部扩张管中血液流的速度和切应力分布的方法。文章以人体颈动脉余弦扩张为例进行分析,详细讨论了局部扩张对血管壁切应力及其梯度分布的影响。数值结果表明,与在刚性均匀管中管壁切应力沿轴向保持不变不同,在局部扩张段,管壁切应力将随着血管半径的增大而减小,因而管壁切应力梯度一般不为零,甚至在某些位置达到相当大的数值。另外,随着血管扩张程度的增加,管壁切应力还将进一步减小,而且管壁切应力梯度也将进一步增大。血管扩张导致管壁切应力的这些变化将直接影响血管壁的结构和功能,使其产生适应性的变化。

关键词：局部扩张周期振荡流压力梯度切应力颈动脉

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草鱼肾细胞中双氟沙星代谢酶的酶动学

水产学报 2010年第3期34卷 404-409页

作者：于灵芝杨先乐王翔凌喻文娟胡鲲上海海洋大学农业部渔业动植物病原库上海海洋大学水产与生命学院上海市高校水产养殖学E-研究院上海美迪西普亚医药科技有限公司

细胞色素P450s(CYPs)主要参与动物体内药物代谢。水产养殖中不合理的联合用药常会导致治疗失败,这通常与CYP活性的诱导有关。然而,关于鱼类CYP的诱导却知之甚少。为获得有关CYP诱导的信息,实验采用反相高效液相色谱(RP-HPLC)的方法测定... 详细信息

细胞色素P450s(CYPs)主要参与动物体内药物代谢。水产养殖中不合理的联合用药常会导致治疗失败,这通常与CYP活性的诱导有关。然而,关于鱼类CYP的诱导却知之甚少。为获得有关CYP诱导的信息,实验采用反相高效液相色谱(RP-HPLC)的方法测定了草鱼肾细胞(CIK)中CYPs的特异性诱导剂对双氟沙星(DIF)的代谢作用及酶动学分析。对照组和β-萘黄酮(BNF)诱导组的酶动学方程分别为1/V=0.1375×1/[S]+0.003和1/V=0.02.5×1/[S]+0.0013。DIF与经BNF处理的CIK共孵育后,其代谢量增加了1倍,酶动学参数Clint和Vmax值分别增加了7倍和2.。BNF是CYP1A的特异性诱导剂,因此,CYP1A可能参与了DIF的代谢。

关键词：草鱼细胞色素P450 双氟沙星酶动力学反相高效液相色谱

集盖、事件类型与汉语“都”字句的双层级量化

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外语教学与研究 2011年第3期43卷 363-374,479-480页

作者：尚新上海海事大学外国语学院上海市201306

汉语"都"字句里实质上存在着双层级量化,即事件类型的初级量化和"都"的全称量化。初级量化效能体现为允准主语复数名词所指称的个体聚合成不同类型和数量的集盖;在初级量化的基础上,全称量词"都"触发集盖的均配性,其量化效能体现为仅仅... 详细信息

汉语"都"字句里实质上存在着双层级量化,即事件类型的初级量化和"都"的全称量化。初级量化效能体现为允准主语复数名词所指称的个体聚合成不同类型和数量的集盖;在初级量化的基础上,全称量词"都"触发集盖的均配性,其量化效能体现为仅仅允准集盖以均配形式参与事件,"都"的量化特征是集盖的标准化和均配化,而非名词指称个体的均配化。这样就形成"都"字句中主语复数名词解读的均配性语义特征。

关键词： “都” 集盖事件类型双层级量化均配性

Vision Enhancement for Maritime Search and Rescue

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Vision Enhancement for Maritime Search and Rescue

Systemic therapy for problems in the new-rich families in the booming area Pudong,shanghai

Asia Navigation Conference 2.09

作者： Chaojian SHI~1 Kaiyu XU~1 Xinzhi WANG~2.1 shanghai Maritime university shanghai P.R china.2.0135 2.Donghai Rescue Bureau Ministry of Transportation P.R china.

＜正＞Because of the limitation of physiological characteristics of human eyes,it is necessary to develop vision enhancement system for maritime search and rescue（SAR-VES）,which is intended to improve the poor searching performance of human vision at sea.A system with its framework architecture,which integrates the imaging systems of visible light,infrared,radar and satellite remote sensing,is proposed in this paper to compensate the weakness of the human observation in the maritime search and rescue *** system will promote the sensitivity and the detection rate of targets,especially small ones,at *** will help improve the safety of life at sea and reduce economical losses in marine accidents.

关键词： vision enhancement system Search and rescue human vision safety at sea target detection

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Systemic therapy for problems in the new-rich families in th...

第十届全国心理学学术大会

作者： Xudong Zhao, Medical School of Tongji university, shanghai,{2.

The impressive speed of the economic development in shanghai, china, is accompanied by a lot of clinically significant changes for the mental health professionals. The Pudong District is the most typical booming area to observe such a contradictory phenomenon. As a new citizen and a psychiatrist doing family therapist in shanghai, the author has been experiencing a different clinical setting. The clients have brought a new spectrum of problems to him. One of the most prominent challenges is the marital and sexual problem in the so-called "new-rich" families. The author perceives to be challenged in the daily works because the

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冶金熔体中组元活度及其标准态的量度

上海大学学报（自然科学版） 2005年第5期11卷 545-550页

作者：曲英项长祥姜钧普魏季和北京科技大学冶金学院北京100083 上海大学材料科学与工程学院上海200072

从冶金熔体中组元的活度及其标准态的概念和定义出发,分析和讨论了在冶金领域应用质量分数和质量百分浓度的差异.指出采用质量百分浓度或质量分数来表示金属溶液中组元的含量,决不仅是简单的单位或数值变换,而且涉及冶金物理化学的基本... 详细信息

从冶金熔体中组元的活度及其标准态的概念和定义出发,分析和讨论了在冶金领域应用质量分数和质量百分浓度的差异.指出采用质量百分浓度或质量分数来表示金属溶液中组元的含量,决不仅是简单的单位或数值变换,而且涉及冶金物理化学的基本原则,必须予以认真考虑和对待.

关键词： SI制冶金熔体组元活度活度的标准态质量分数质量百分浓度

元明题画诗文初探——兼及“诗画合一”形式的现代继承

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上海大学学报（社会科学版） 2005年第1期12卷 36-41页

作者：孙小力上海大学文学院上海200444

元明诗文的新变化,常常首先出现在倪瓒、吴镇、王冕、沈周、徐渭、唐寅等诗画家的作品之中,诸如人　　元明诗文的新变化,常常首先出现在倪瓒、吴镇、王冕、沈周、徐渭、唐寅等诗画家的作品之中,诸如人伦教化因素逐渐减弱,主观情怀、人... 详细信息

元明诗文的新变化,常常首先出现在倪瓒、吴镇、王冕、沈周、徐渭、唐寅等诗画家的作品之中,诸如人　　元明诗文的新变化,常常首先出现在倪瓒、吴镇、王冕、沈周、徐渭、唐寅等诗画家的作品之中,诸如人伦教化因素逐渐减弱,主观情怀、人生意味的表现日益增强,清新通俗、激锐酣畅和滑稽风趣的风格形式等等。这样的变化,与当时趋于表现真情、崇尚个性张扬的时代思潮相一致,然而在题画诗文中的表现更为突出和超前。

关键词：元明题画诗文诗画合一

Influence of perfusion by gaseous oxygen persufflation on rat donor liver

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Hepatobiliary & Pancreatic Diseases International 2006年第2期5卷 195-198页

作者： Hong-Wei Sun, Feng Shen and Yan-Ming Zhou Division of Comprehensive Treatment, Eastern Hepatobiliary Surgery Hospital, Second Military Medical university, shanghai 2.0433,{2. Division of Comprehensive Treatment Eastern Hepatobiliary Surgery Hospital Second Military Medical University Shanghai 200433 China.

BACKGROUND: Hepatic ischemia-reperfusion injury is one of the major problems in liver transplantation. This study aimed to investigate the possible improvement of aerobic metabolism of ischemic donor livers through systemic persufflation with gaseous oxygen in rinse solution. METHODS: Thirty rats were randomly divided into 3 groups. In group A (control, n = 10), the livers were perfused with 4 ℃ lactic acid ringer's solution through the can-nulated portal vein for 2. minutes soon after warm ischemia for 30 minutes. In group B (n =10), the livers were treated the same way as in group A except for addition of gaseous oxygen in the rinse solution. In group C (n =10), the livers were treated similarly as in group B except for addition of superoxide dismutase (SOD) in the rinse solution. RESULTS: In group B, the malondialdehyde(MDA)levels in hepatic tissues after perfusion were significantly increased (P< 0. 01), whereas the SOD levels were markedly decreased (P <0.01). After combined use with antioxidant in group C, the levels of MDA and SOD in hepatic tissues after perfusion recovered significantly (P<0.01). CONCLUSION: Perfusion by gaseous oxygen persufQation in combination with antioxidative agents is promising for resuscitating the ischemically altered livers for successful transplantation.

关键词： liver transplantation gaseous oxygen persufilation ischemia reperfusion

Robust Stabilization for Uncertain Control Systems Using Piecewise Quadratic Lyapunov Functions

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Journal of Systems Engineering and Electronics 2002年第4期13卷 56-60页

作者： Zhang Yinping & Sun Jitao Dept. of Appl. Math., Tongji university, shanghai 2.0092. P. R.{2. Dept. of Appl. Math. Tongji University Shanghai 200092 P. R. China

The sufficient condition based on piecewise quadratic simultaneous Lyapunov functions for robust stabilization of uncertain control systems via a constant linear state feedback control law is obtained. The objective is to use a robust stability criterion that is less conservative than the usual quadratic stability criterion. Numerical example is given, showing the advanteges of the proposed method.

关键词： Robust State feedback control, Stabilizing uncertain system.