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Cytocompatibility of Self-assembled Hydrogel from IKVAV-containing Peptide Amphiphile with Neural Stem Cells

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Journal of Wuhan University of technology(Materials Science) 2009年第5期24卷 753-756页

作者：宋玉林 Department of Orthopaedics the Second Affiliated Hospital of Nanchang University

Neural Stem Cells （NSCs） were incubated with self-assembled hydrogel from IKVAV-containing peptide amphiphile （IKVAV-PA） for one week. The cytocompatibility of hydrogel was evaluated. NSCs were seeded in three-dimensional （3D） hydrogels （Experimental Group, EG） or surface of coverslips （Control Group, CG）, double-labeled with Calcein-AM and PI. A growth curve of cells was obtained according to CCK-8. TEM study of hydrogel revealed a network of nanofibers. NSCs began to proliferate after 24 h of incubation, and formed bigger neurospheres at 48 h in EG than in CG. Cell proliferation activity was higher in EG than in CG （P〈0.05）. The self-assembled Hydrogel had good cytocompatibility and promoted the proliferation of NSCs.

关键词： IKVAV hydrogel cytocompatibility proliferation

Friction Properties of OTS SAMs and Silicon Surface under Water Lubrication

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Journal of Wuhan University of technology(Materials Science) 2009年第2期24卷 273-277页

作者：王馨 State Key Laboratory of Tribology Tsinghua University institute of Nuclear and New Energy technology Tsinghua University

The friction and wear properties of silicon surface covered with octadecyltrichlorosilane （OTS） self-assembled monolayers （SAMs） were investigated by a UMT-2 microtribometer with and without water as lubricant, and then compared with that of bare silicon surface. Dry friction measurement results show that OTS SAMs have a very low friction coefficient compared to bare silicon surface under lower sliding velocity and normal contact load. However, heavy wear occurs on OTS SAMs under higher contact stress and sliding velocity. Under water lubrication, OTS SAMs can prevent wear obviously and meanwhile present low coefficient of friction even under high velocities, The improved frictional and anti-wear property on OTS SAMs surface is attributed to the hydrophobic property of OTS and hydrodynamic effect of water. Furthermore, a wear critical phase diagram for OTS SAMs with and without water was proposed, which indicates that OTS SAMs working under water lubrication owns a wider range of available load and velocity to reduce friction and prevent wear.

关键词： silicon surface OTS SAMs water lubrication friction wear

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不同库区水位下坝基地震液化的有效应力分析

上海交通大学学报 2009年第2期43卷 173-177页

作者：夏志凡叶冠林王建华叶斌张锋上海交通大学土木工程系上海200030 日本地域地盘环境研究所大阪日本名古屋工业大学名古屋南昌工程学院南昌330099

采用基于有效应力的完全耦合动力分析方法和Cyclic mobility动力本构模型,以某水库大坝作为工程实例进行分析,讨论在设计水位和死水位情况下坝基的地震液化可能性.计算结果表明,Cyclic mobility本构模型可以很好地模拟饱和砂土的液化.... 详细信息

采用基于有效应力的完全耦合动力分析方法和Cyclic mobility动力本构模型,以某水库大坝作为工程实例进行分析,讨论在设计水位和死水位情况下坝基的地震液化可能性.计算结果表明,Cyclic mobility本构模型可以很好地模拟饱和砂土的液化.通过分析可以得出如下结论:在死水位情况下坝基的液化区域较设计水位情况下减少,但由液化所引起的上游变形明显增大,因此设计时需要对此引起注意.

关键词：坝基液化交变移动性有效应力法动力分析

The research of fast prediction method of radon concentration in environment air

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The research of fast prediction method of radon concentratio...

BOTTOM SETTLER EXTRACTOR:A NEW LIQUID-LIQUID MIXER-SETTLER

2012 IEEE International Conference on Engineering technology and Economic Management（ICETEM2012）

作者： WU Hexi YANG Bo LIU Yujuan LIU Qingcheng Engineering Research Center of Nuclear technology Application East China institute of technology Ministry of Education nanchang 330013 China

Basing on the theory that 222 Rn can transport in any medium,the fast prediction model of radon concentration in environment air can be *** it has been proved accurate by an experiment in *** field tests also showed that the average absolute relative error is 8.78% between mean value of measurement and that of fast *** can be predict fleetly the radon concentration by 226Ra which is acquired from the airborne gamma-ray *** relative error between measurement and model is-11.7%.Therefore,the transport model can be effectively applied to predict radon concentration in environment air.

关键词： fast prediction radon concentration environment air

来源： cnki会议评论

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BOTTOM SETTLER EXTRACTOR:A NEW LIQUID-LIQUID MIXER-SETTLER

The Microstructure Mechanical Property Characteristic of 1Cr17/9Cr18MoV Multilayered Plates

International Solvent Extraction Conference 2005

作者： Zhong Chenghua Zhong Chuzhi * Shen Wei** Cheng Aixia*** Department of Chemistry Jiangxi Agricultural University nanchang 330045 P. R. CHINA *College of Engineering Jiangxi Agricultural University nanchang 330045 CHINA **institute of Applied Chemistry jiangxi Academy of Sciences nanchang 330029 CHINA ***Jiangxi institute of Chemical technology nanchang 330012 CHINA

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Journal of Iron and Steel Research International 2011年第S1期18卷 933-935页

作者： XIE Guo-liang 1,WANG Yan-lin 2,LIU Jing 1,HAN Jing-tao 1,GAO Gang 1 (1.School of Materials Science and Engineering,University of Science and technology Beijing,Beijing 100083,China 2.Fangda Special Steel technology Co.,Ltd,nanchang 330012,China) Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 100083 Peoples R China Fangda Special Steel Technol Co Ltd Nanchang 330012 Peoples R China

A multilayered plate,containing two different steel,1Cr17 and 9Cr18MoV are *** microstructures of both materials and the transition zone of interfaces are investigated by SEM and *** point bending tests are employed to determine its mechanical *** multilayered composite shows a different mechanical property:a much lager bending defection than that of 9Cr18MoV material and a much higher strength than that of 1Cr17 material.

关键词： multilayered plate 1Cr17/9Cr18MoV microstructures mechanical property

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澳大利亚职业教育的经费

外国教育研究 2004年第9期31卷 61-64页

作者：黄日强江西省高校文科重点研究基地江西科技师院职业教育研究所东华理工学院江西抚州344000

澳大利亚职业教育的经费来源于多种渠道,法律规定、收费改革、吸引生源和招收海外学生是澳大利亚筹措职业教育经费的重要举措,商业化拨款是澳大利亚管理职业教育经费的显著特点。

关键词：澳大利亚职业教育经费商业化拨款

Analysis of Drought in Poyang Lake

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Meteorological and Environmental Research 2011年第5期2卷 38-40,44页

作者： GAN Xiao-yan,LIU Cheng-lin,HUANG Xiao-ming institute of Architectural Engineering,nanchang University,nanchang 330031,China

[Objective] The drought situation and causes in Poyang Lake were analyzed.[Method] In response to the drought in Poyang Lake in ten years ago and in recent 10 years,the causes of drought in Poyang Lake were discussed.[Result] Drought occurred frequently in Poyang Lake and the consecutive serious drought occurred now and *** water level in Poyang Lake since 21st century was *** drought in Poyang Lake was due to reduction of precipitation,low water level in Yangtze River and 'five lakes',hydraulic project,industrial and agricultural water increase and other aspects.[Conclusion] The study provided theoretical basis for the formulation of drought prevention measures by relevant departments.

关键词： Poyang Lake Drought conditions Drought analysis China

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微束等离子弧电源外特性的研究

焊接学报 1989年第2期10卷 80-86页

作者：张仁甫陈焕明南昌航空工业学院

本文通过对微束等离子电弧形态的分析,弧长波动对焊缝宽度比、电弧电流分散度的影响等测试,提出,在弧长波动时,工件有效热功率变化的原因,主要是电弧存在着电流分散现象。在纯氩气氛中,垂降外特性和双曲线外特性两种电源,都不能在弧长... 详细信息

本文通过对微束等离子电弧形态的分析,弧长波动对焊缝宽度比、电弧电流分散度的影响等测试,提出,在弧长波动时,工件有效热功率变化的原因,主要是电弧存在着电流分散现象。在纯氩气氛中,垂降外特性和双曲线外特性两种电源,都不能在弧长波动时保持工件有效热功率不变。当电弧受到足够的双原子气氛冷却和压缩时,双曲线外特性电源的优越性才得显示出来。文章最后指出,在纯氩气氛中,微束等离子弧最佳电源外特性应该是上升型的。

关键词：电源等离子弧电弧焊接