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Effects of fish protein hydrolysate on growth performance and humoral immune response in large yellow croaker (Pseudosciaena crocea R.)

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Journal of zhejiang university-Science B(Biomedicine & Biotechnology) 2008年第9期9卷 684-690页

作者： Hong-gang TANG1,2, Tian-xing WU1,2, Zhan-yu ZHAO1, Xiao-dong PAN1 (1department of Chemistry, zhejiang university, hangzhou 310027, china) (2Key Laboratory for Molecular Design and Nutrition Engineering, Ningbo Institute of Technology, zhejiang university, Ningbo 315100, china) department of Chemistry Zhejiang University Hangzhou 310027 China. tangtotti@***

We investigated the effects of fish protein hydrolysate (FPH) on growth performance and humoral immune response of the large yellow croaker (Pseudosciaena crocea R.). One thousand and two hundred large yellow croakers [initial average weight: (162.75±23.85) g] were divided into four groups and reared in floating sea cages (3 m×3 m×3 m). The animals were fed with 4 diets: basal diet only (control) or diets supplemented with 5%, 10% and 15% (w/w) FPH. The results show that dietary FPH levels significantly influenced the growth and immunity of the large yellow croaker. Compared with the control group, total weight gain (TWG) in all treatment groups, relative weight gain (RWG) and specific growth rate (SGR) in fish fed with diets supplemented with 10% and 15% FPH were significantly increased (P<0.05). Similar results were observed in immune parameters [lysozyme activity, serum complements, immunoglobulin M (IgM)]. Lysozyme activity, complement C4 and IgM were also significantly increased (P<0.05) in fish fed with diets supplemented with 10% and 15% FPH, while complement C3 level was significantly increased (P<0.05) in all treatment groups. In general, with the supplementation of FPH, particularly at dose of 10%, the growth performance and immunity of the large yellow croaker can be improved effectively.

关键词： Fish protein hydrolysate (FPH) Growth performance Humoral immune response Large yellow croaker

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Simultaneous detection of seven phenolic acids in Danshen injection using HPLC with ultraviolet detector

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Journal of zhejiang university-Science B(Biomedicine & Biotechnology) 2008年第9期9卷 728-733页

作者： Jin-zhong XU, Jie SHEN, Yi-yu CHENG, Hai-bin QU (department of Chinese Medicine Science and Engineering, College of Pharmaceutical Sciences, zhejiang university, hangzhou 310058, china) department of Chinese Medicine Science and Engineering College of Pharmaceutical Sciences Zhejiang University Hangzhou 310058 China.

A high-performance liquid chromatographic (HPLC) method with ultraviolet (UV) detector had been developed for simultaneous quantification of danshensu, protocatechuic aldehyde, caffeic acid, salvianolic acid D, rosmarinic acid, salvianolic acid B and salvianolic acid A in Danshen injection. According to the UV spectra of these components, three detection wavelengths have been selected as follows: 280 nm for danshensu and protocatechuic aldehyde, 326 nm for caffeic acid, salvianolic acid D and rosmarinic acid, 286 nm for salvianolic acid B and salvianolic acid A. The limit of detection (LOD) was improved to be in the range of 0.008~0.160 μg/ml. Moreover, excellent linear behavior over the investigated concentration range was observed, with R>0.999 for all the analytes.

关键词： High-performance liquid chromatography (HPLC) Danshen injection (DSI) Phenolic acids Multi-wavelengths Quantification

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Exact Internal Controllability of The Kirchhoff Plate-Like Equation

Exact Internal Controllability of The Kirchhoff Plate-Like E...

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1998年中国控制会议

作者： LIU Kangsheng and yu Xinhui department of Applied mathematics zhejiang university, hangzhou, 310027, china.

＜正＞When the rotatory inertia is taken into account, vibrations of a linear plate can be described by the Kirchhoff plate equation. Consider this equation with locally distributed control forces and some boundary condition which is the simply supported boundary condition for a rectangular plate. In this paper, we establish exact controllability of the system in terms of the equivalence to exact internal controllability of the wave equation, by means of a frequency domain characterization of exact controllability introduced recently in Liu [1].

关键词： Kirchhoff plate equation locally distributed control exact controllability wave equation frequency domain condition

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Carbendazim induces a temporary change in soil bacterial community structure

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Journal of Environmental Sciences 2009年第12期21卷 1679-1683页

作者： WANG Xiuguo, SONG Min, GAO Chunming, DONG Bin, ZHANG Qun, FANG Hua, yu yunlong department of Plant Protection, College of Agriculture and Biotechnology, zhejiang university, hangzhou 310029, china. department of Plant Protection College of Agriculture and Biotechnology Zhejiang University Hangzhou 310029 China

The effect of carbendazim applications on the diversity and structure of a soil bacterial community was studied under field conditions using temperature gradient gel electrophoresis （TGGE） and partial sequence analysis of PCR-amplified 16S rRNA gene. After four successive introductions of carbendazim at a level of 0.94 kg active ingredient （a.i.）/ha, the genetic diversity （expressed as Shannon index, H′） decreased from 1.43 in the control to 1.29 in treated soil. This harmful effect seems to increase with the concentration of carbendazim. The value of H＇ in the soil treated with carbendazim at 4.70 kg a.i./ha was reduced to 1.05 （P ≤ 0.05）. The structure of soil bacterial community was also affected after four repeated applications of carbendazim at levels of 0.94, 1.88 and 4.70 kg a.i./ha, as seen in the relative intensities of the individual band. However, the bacterial community in carbendazim-treated soil recovered to that in the control 360 d after the first treatment. The results indicated that repeated applications of carbendazim could reduce soil microbial diversity and alter the bacterial community structure temporarily.

关键词： carbendazim bacterial diversity temperature gradient gel electrophoresis phylogenetic analysis

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Synthesis and electrochemical performance of YF_3-coated LiMn_2O_4 cathode materials for Li-ion batteries

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Rare Metals 2011年第1期30卷 39-43页

作者： CAO Jina CAO Gaoshao yu Hongming XIE Jian ZHAO Xinbing department of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China

Spinel LiMn2O4 cathodes were coated with 1 mol% YF3.X-ray diffraction（XRD） analyses showed that Y and/or F did not enter the lattice of the LiMn2O4 *** electron microscopy（TEM） showed that a compact YF3 layer of 5-20 nm in thickness was coated onto the surface of LiMn2O4 *** electron microscopy（SEM） observation showed that the YF3 coating caused the agglomeration of LiMn2O4 *** cycling test demonstrated that the YF3 coating can improve the electrochemical performance of LiMn2O4 at both 20 and 55°***,YF3-coated LiMn2O4 exhibited an improved rate capability compared with the uncoated one at high rates over *** immersion test in electrolytes showed that YF3-coated LiMn2O4 is more erosion resistant than the uncoated one.

关键词： lithium batteries coatings cathodes electrochemical properties

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FULLY RESOLVED NUMERICAL SIMULATION OF TURBULENT PIPE FLOWS LADEN WITH LARGE NEUTRALLY-BUOYANT PARTICLES

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Journal of Hydrodynamics 2011年第1期23卷 21-25页

作者： WU Teng-hu SHAO Xue-ming yu Zhao-sheng State Key Laboratory of Fluid Power Transmission and Control Department of Mechanics Zhejiang UniversityHangzhou 310027 China

In this article,we employ a fully-resolved numerical simulation method（the fictitious domain method）to investigate the effects of large neutrally-buoyant particles on the turbulent flow in a pipe at low Reynolds number and non-dilute *** tube Reynolds number is fixed to be 4 900,the particle-pipe diameter ratio is 0.1,and the particle volume fraction ranges from 0.33%to 10%.Our results indicate that the presence of large particles decreases the maximum root-of-mean-square（rms）of the streamwise velocity fluctuation near the wall by weakening the intensity of large-scale streamwise vortices,although in the region very close to the wall the particles increase the rms of streamwise velocity *** the other hand,the particles induce small-scale vortices in the near-wall region,resulting in the enhancement of the rms of radial and circumferential velocity fluctuations there.

关键词： fully-resolved direct numerical solution particulate turbulent pipe flow large particles particle-turbulence interactions

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Formation of the [M+NH_4]^+ Ious of Some Mouo-and Di-saccharides in Fast Atom Bombardment Mass Spectrometry

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Chinese Chemical Letters 1997年第10期8卷 879-882页

作者： Jian Jun zhai Fau Zhi ZHAO Deug Gang HUANG Yao Zu CHEN (State Key Laboratory of Applied Organic Chemistry , Lanzhou university , Lanzhou 730000department of Chemistry , zhejiang university , hangzhou 310027)Jin Skan GUO(Gansu Institute of Plast State Key Lab. of Appl. Organ. Chem. Lanzhou University Lanzhou 730000 China department of Chemistry Zhejiang University Hangzhou 310027 China Gansu Inst. of Plastics and Leather Lanzhou 730000 China

In positive-ion fast atom bombardment (FAB) mass spectrometry, when mono- and di- saccharides are mixed with an appropriate amount of NH4Cl, a highly abundan peak [M+NH4]+appers in FAB mass spectra . From the adduct ... 详细信息

关键词： Mass Atom Ious of Some Mouo-and Di-saccharides in Fast Atom Bombardment Mass Spectrometry M+NH4 Formation of the NH

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Sonochemical Synthesis of Core/Shell Structured CdS/TiO_2 Nanocrystals Composites

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Journal of Wuhan university of Technology(Materials Science) 2009年第5期24卷 698-701页

作者：王智宇 State Key Laboratory of Silicon Materials Department of Materials Science and Engineering Zhejiang University

A simple sonochemical route for the surface coating of titanium dioxide on cadmium sulfide nanocrystal was reported. After 2 h ultrasonic irradiation treatment, the mixture of CdS nanocrystals and tetrabutyl titanate in an aqueous medium yielded CdS/TiO2 nanocrystals composites with core/shell structure. The thickness of TiO2 layer with smooth interface could be easily controlled via changing the concentration of the precursors and the time of irradiation. The core/shell nanocrysrals were characterized by X-ray diffraction, transmission electron microscope and UV-vis spectrometry techniques. The prepared semiconductor composites with particular band structure present appealing properties especially in photochemical activity.

关键词： core/shell CdS/TiO2 sonochemical photochemical activity

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Cysteinyl leukotriene receptor 1 partially mediates brain cryoinjury in mice

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Acta Pharmacologica Sinica 2007年第7期28卷 945-952页

作者： Qian DING~2,San-hua FANG~2,yu ZHOU~2,Li-hui ZHANG~3,Wei-ping ZHANG~2,Zhong CHEN~2,Er-qing WEI~(2,4)~2 department of Pharmacology,School of Medicine,zhejiang university,hangzhou 310058,china ~3 department of Pharmacology,Schoolof Medicine,hangzhou Teachers College,hangzhou 310012,china department of Pharmacology School of Medicine Zhejiang University Hangzhou China department of Pharmacology School of Medicine Hangzhou Teachers College Hangzhou China

Aim:To determine whether the cysteinyl leukotriene receptor 1（CysLT1receptor）modulates brain cryoinjury and whether the CysLT1receptor antagonist pranlukastexerts a time-dependent protective effect on cryoinjury in ***:Braincryoinjury was induced by applying a liquid nitrogen-cooled metal probe to thesurface of the skull for 30 *** lesion,neuron density,and endogenous IgGexudation were observed 24 h after *** and the expressionof the CysLT1receptor were detected by RT-PCR and immunoblotting,and thelocalization of the receptor protein by double ***:ThemRNA and protein expressions of the CysLT1receptor were upregulated in thebrain 6-24 h after cryoinjury,and the CysLT1receptor protein was primarily local-ized in the neurons,not in the astrocytes or ***-injury treatments withmulti-doses and a single dose of pranlukast （0.1 mg/kg） attenuated cryoinjury;postinjury single dose （0.1 mg/kg） at 30 min （not 1 h） after cryoinjury was ***:The CysLT1receptor modulates cryoinjury in mice at leastpartly,and postinjury treatment with its antagonist pranlukast exerts the protec-tive effect with a therapeutic window of 30 min.

关键词： cysteinyl leukotriene receptor antagonist pranlukast cryoinjury neuroprotection

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Controllability of Infinite Dimensional Linear Systems in Non-reflexive State Spaces

Controllability of Infinite Dimensional Linear Systems in No...

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第二十二届中国控制会议

作者： yu Xin Liu Kangsheng Chen Pengnian department of mathematics zhejiang university hangzhou 310027 Division of mathematics china Institute of Metrology hangzhou 310034

＜正＞In this paper, exact controllability and exact null controllability of infinite dimensional linear system in non-reflexive state space are considered. For the system governed by a C-semigroup, the criteria for exact controllability and exact null controllability via controls in Lp（[0,T],U）, 1＜p≤∞, are obtained. For the system governed by a C0-semigroup, we also get a necessary and sufficient condition for exact null controllability via controls in Lp[0,T],U),1 ＜p≤∞

关键词： Exact controllability Exact null controllability Reflexive space C0-semigroup C-semi group

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