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Growth performance and physiological parameters of the second generation selected and control groups of Pinctada martensii

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Acta Oceanologica Sinica 2011年第2期30卷 120-125页

作者： DENG Yuewen YU Ziniu DU Xiaodong WANG Qingheng FU Shao Fisheries College Guangdong Ocean University Zhanjiang 524025 China South china Sea institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China

In May of 2.07,the second generation selected （SS） and control （SC） groups of pearl oyster Pinctada martensii were established by selecting 10% breeders with the largest and mean shell length,respectively,from the first generation selected *** performance of the SS and SC groups were compared on the basis of measurement data at Days 8,18,60,95,195 and *** Day 365,100 individuals （60.0–75.0 mm at shell length） were sampled from each group and then subjected to the experiment where physiological parameters such as filtrate rate,oxygen consumption and ammonia excretion were measured at 15,2.,2. and 30°*** results show that the SS group had significantly larger mean shell length and shell height than the SC group at Days 8,18,60,95,195 and 365 （P 0.05）.The genetic gains at different ages varied from 6.0% to 17.0% for shell length and 5.7% to 14.6% for shell height,*** 15,2.,2. and 30 ° C,the SS groups had significantly larger filtrate rate than the SC group （P 0.05）.At 15 and 2. °C,the differences in oxygen consumption rate between the SS and SC groups were not significant （P 0.05）.At 2. and 30 °C,however,the oxygen consumption rate of the SS group was significantly larger than the SC group （P 0.05）.At 15,2.,2. and 30 °C,there were no significant differences in ammonia excretion rate between the SS and SC groups （P 0.05）.The present results indicate that there existed considerable genetic variability in the base population and a further selection could be likely *** selection for faster growth might produce animals that had higher intake of metabolizable energy by virtue of faster filtrating behavior.

关键词： Pinctada martensii the second generation selected group growth genetic gains physiological parameters

Research on the Daily Administration Times of Composite Yinchen tablet in Iceteric Rats Based on PD/PK Model

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Research on the Daily Administration Times of Composite Yinc...

加快转变医药发展方式，占领科学技术制高点——2.11年中国药学大会暨第11届中国药师周

作者： LV Jun-lan 1,2.JIN Shi-ying 1,2.YUAN Hai-long 1,XIAO Xiao-he 1,FU Shan-shan 1,2.JIN Shi-xiao 1,2.GUO Jing-jing 1,2.(1.Department of pharmacuetic,302.Hospital of PLA,Beijing 100039,china 2.School of pharmacuetic,chengdu University of TCM,chengdu 611731,china)

Object:To study the rational daily administration times of Composite Yinchen tablet(CYT) when it is used to treat experimental jaundice in rats based on PD/PK ***:Rats were modeled by 4% ANIT(75mg/kg) for 48h,then CYT(solved in water) was drenched to them with a dose of 0.32.g/k(calculated with the clinical dosage) once a day,0.162./kg twice a day and 0.108g/kg three times a day,*** total bile and the flow rate of bile were observed after the first administration;blood collected from the orbital sinus after different intervals was used to investigate the levels of liver enzymes(such as ALT,AST) and bilirubins(such as TBIL and DBIL),and determine the concentration of 6,7-dimethoxycoumarin (DME) in the blood plasma using UPLC-MS/MS at the same time,then we obtained the time-effect curve and time-dose *** rational daily administration times of CYT when used to treat experimental jaundice was determined based on the comprehend analysis of time-effect and time-concentration ***:The total bile within 10h of the rats which were administered one time a day(G1) was 1.65 and 1.33 times higher than that of two and three administrations(G2.and G3) a day,respectively,and the four biochemical indexes(TBIL、ALT、DBIL、AST) of G1 decreasing faster than G2.and G3(p2.and G3,which maybe the main reason why its effect was the most ***:It is more appropriate to administrate one time a day when CYT is used to treat jaundice.

关键词： Composite Yinchen tablet Daily Administration Times PD/PK 6,7-dimethoxycoumarin jaundice

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不同力学边界下梯度功能材料板瞬态热应力

中国稀土学报 2003年第Z1期21卷 199-203页

作者：许杨健涂代惠河北工程学院土木建筑工程系河北邯郸056038 河北工程学院城市建设系河北邯郸056038

用有限元和有限差分法,分析了由ZrO2.Ti 6Al 4V组成的梯度功能材料板的瞬态热应力问题,检验了方法的正确性,给出了不同力学边界条件下该材料板的瞬态热应力场分布。结果表明:无限自由长板内的热应力最小;当无限长板只能伸长,不能弯曲时... 详细信息

用有限元和有限差分法,分析了由ZrO2.Ti 6Al 4V组成的梯度功能材料板的瞬态热应力问题,检验了方法的正确性,给出了不同力学边界条件下该材料板的瞬态热应力场分布。结果表明:无限自由长板内的热应力最小;当无限长板只能伸长,不能弯曲时,板内瞬态拉应力最大,比无限自由长板时板内最大拉应力增大3.3倍;当无限长板的伸长、弯曲受限时,板内的瞬态压应力最大,比无限自由长板内的最大压应力增大5.1倍;此外,对流换热系数和环境介质温度的变化对不同力学边界条件下该材料板瞬态热应力场的影响显著。此结果为该材料的设计和应用提供了准确的理论计算依据。

关键词：梯度功能材料板瞬态热应力力学边界对流换热边界有限元法

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新场气田上沙溪庙组的应力场特征

石油与天然气地质 2003年第2期24卷 136-139页

作者：吴志均杨宇刘应楷成都理工大学能源学院四川成都610059 西南石油局开发处四川成都610081 西南石油局地质综合研究院四川成都610081

新场气田位于四川盆地西部坳陷的中部。其构造展布方向 ,形变强度等方面与两侧都有较明显的差别。从整体上看 ,新场气田属弱形变区。印支期至燕山晚期 ,新场气田长期处于NS向反扭和EW向挤压 ,仅中喜马拉雅形变世代的EW向挤压应力场较为... 详细信息

新场气田位于四川盆地西部坳陷的中部。其构造展布方向 ,形变强度等方面与两侧都有较明显的差别。从整体上看 ,新场气田属弱形变区。印支期至燕山晚期 ,新场气田长期处于NS向反扭和EW向挤压 ,仅中喜马拉雅形变世代的EW向挤压应力场较为明显 ;该构造属于弱形变强度的构造 ,仅发育少数小断裂 ,岩芯上应力场踪迹少 ;其应力场特征是 :最大水平主应力的主体方向为 15 6°左右 ,最大主应力 (σv)与最小主应力 (σh)近于水平 ,最大主应力稍大于岩层的垂直应力 (σH)和岩石的破裂应力。

关键词：应力场上沙溪庙组构造形变岩芯踪迹

Perceptual video hashing robust against geometric distortions

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Science china(Information Sciences) 2012年第7期55卷 1520-1527页

作者： XIANG ShiJun 1,4 ,YANG JianQuan 2.& HUANG JiWu 3 1 School of Information Science and Technology,Jinan University,Guangzhou 510632.china 2.Shenzhen institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,china 3 School of Information Science and Technology,Sun Yat-sen University,Guangzhou 5102.5,china 4 State Key Laboratory of Information Security,institute of Software,Chinese Academy of Sciences,Beijing 100049,china School of Information Science and Technology Jinan University Guangzhou China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Beijing China Shenzhen institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China School of Information Science and Technology Sun Yat-sen University Guangzhou China

In this paper,we propose a robust perceptual hashing algorithm by using video luminance histogram in *** underlying robustness principles are based on three main aspects:1) Since the histogram is independent of position of a pixel,the algorithm is resistant to geometric deformations; 2. the hash is extracted from the spatial Gaussian-filtering low-frequency component for those common video processing operations such as noise corruption,low-pass filtering,lossy compression,etc.; 3) a temporal Gaussian-filtering operation is designed so that the hash is resistant to temporal desynchronization operations,such as frame rate change and *** a result,the hash function is robust to common geometric distortions and video processing *** results show that the proposed hashing strategy can provide satisfactory robustness and uniqueness.

关键词： video hashing geometric distortion histogram Gaussian filtering

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深圳污水通道盾构管片设计计算

施工技术 2004年第10期33卷 40-42页

作者：林志姜勇铁道第二勘察设计院四川成都610031 同济大学上海200092

对比分析了修正的惯用设计法、梁接头元连续和不连续模型等3种设计法的原理。通过对深圳水库流域污水通道盾构管片进行受力及配筋计算,得出曲梁接头元不连续模型设计法更为经济、合理。

关键词：盾构管片错缝拼装设计

Change of asphaltene and resin properties after catalytic aquathermolysis

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Petroleum Science 2009年第2期6卷 194-200页

作者： Yi Yufeng Li Shuyuan Ding Fuchen Yu Hang School of Chemical Science and Engineering China University of Petroleum （Beijing） Beijing 102249 China School of Chemical Engineering Beijing Institute of Petrol-chemical Technology Beijing 102617 China

Resin and asphaltene were separated from Liaohe heavy oil. Catalytic aquathermolysis of asphaltene and resin was investigated by using water soluble catalysts （NiSO4 and FeSO4） and oil soluble catalysts （nickel naphthenate and iron naphthenate）. Before and after aquathermolysis, the properties of the resin and asphaltene was compared by means of ultimate analysis, vapor pressure osmometer （VPO） average molecular weight, X-ray diffraction （XRD）,^13C and ^1H nuclear magnetic resonance （NMR）. The conversion sequence was as follows： No-catalyst〈NiSO4〈FeSO4〈nickel naphthenate〈iron naphthenate. In the presence of catalysts, the amount of H2.and CO increased significantly, while H2. in the gas product decreased. The molecular weight of asphaltene and resin increased after reaction without catalyst. But the catalysts restrained this trend. The H/C ratio of asphaltene and resin decreased after reaction. From the results of average structural parameters and molecular weight, it was found that asphaltene and resin were partly aggregated after aquathermolysis.

关键词： Asphaltene resin aquathermolysis molecular weight catalyst

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约束切换与阻抗显示力反馈设备的稳定性研究

机器人 2004年第2期26卷 97-101,106页

作者：王党校张玉茹王玉慧吕培军王勇北京航空航天大学机器人研究所北京100083 北京大学口腔医学院计算机应用中心北京100081

研究了虚拟现实力觉交互系统中基于阻抗显示原理的交互设备丧失稳定性的原因以及振荡抑制方法 .通过分析单边约束的特点 ,将复杂虚拟物体形状的感知和交互过程归结为动态单边约束的接触问题 .采用力反馈设备Phantom(R) 建立试验平台 ,... 详细信息

研究了虚拟现实力觉交互系统中基于阻抗显示原理的交互设备丧失稳定性的原因以及振荡抑制方法 .通过分析单边约束的特点 ,将复杂虚拟物体形状的感知和交互过程归结为动态单边约束的接触问题 .采用力反馈设备Phantom(R) 建立试验平台 ,通过分析不同类型的单边约束下虚拟力信号的时间和空间分布规律 ,发现了动态单边约束交互仿真中产生振荡的原因 .给出了基于虚拟力信号空间梯度的消除振荡的方法 .试验表明 ,该方法可以有效抑制振荡 ,实现稳定的力觉交互控制 .

关键词：单边约束阻抗显示力信号空间梯度稳定性

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三角法光学非接触测量头应用中的关键技术

天津大学学报（自然科学与工程技术版） 2005年第1期38卷 69-73页

作者：吴奎先杨仁平张国雄李敬杰裘祖荣于复生冷长林中国工程物理研究院化工材料研究所绵阳621900 天津大学精密测试技术及仪器国家重点实验室天津300072

光学非接触测头在其实际应用中,有一系列问题需要解决.为此,对三角法测量头的灵敏度与特性标定、工件的倾斜与颜色的影响、光束功率与引起的温升、测头的位置找正、测头系统的作用半径标定等应用中的关键技术进行了实验研究,提出了误差... 详细信息

光学非接触测头在其实际应用中,有一系列问题需要解决.为此,对三角法测量头的灵敏度与特性标定、工件的倾斜与颜色的影响、光束功率与引起的温升、测头的位置找正、测头系统的作用半径标定等应用中的关键技术进行了实验研究,提出了误差补偿、提高调整和标定精度以提高光学非接触测头使用精度的方法.

关键词：测量非接触测头三角法标定作用半径