5 research outputs found

    抗人肺癌单克隆抗体(3D3)的研制及其特性鉴定

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    本文用人肺腺癌组织免疫的BALB/c小鼠脾细胞与小鼠骨髓瘤Sp2/0细胞融合,获得1株单克隆抗体(McAb 3D3)。Ig类测定为IgG_1型。杂交瘤培养上清液和腹水的效价分别为1∶10~3~10~4和1∶10~6。采用间接免疫荧光法(IFA)观察到McAb3D3主要与肺腺癌细胞株A549和L342反应,与其它组织肿瘤细胞株没有反应。ABC免疫酶染色试验显示McAb3D3主要与肺腺癌组织反应,与正常肺组织没有反应

    The research of micro-electrolysis process composed of discarded iron slag and coke pretreating landfill leachate

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    [中文文摘]研究表明,废铁屑和焦炭微电解是预处理垃圾渗滤液的一种有效方法,可去除垃圾渗滤液COD、色度和腐殖酸等污染物质,改善其可生化性、降低负荷,为后续生化处理创造良好的条件。通过静态正交实验确定废铁屑和焦炭最佳投加体积比为1∶3;最佳反应pH值为4;动态实验中,反应时间为1 h时,COD和色度去除率分别高达68%和91%;BOD/COD从0.3提高到0.5左右。[英文文摘]The study shows that micro-electrolysis process is an effective method to pretreat landfill leachate.It can remove much of COD,chroma,humic acid and can improve leachate′s biodegradable ability to create good conditions for following biochemical treatment.The optimal volume ratio of iron slag and coke is(1∶3) by orthogonal array experiments;the optimum pH is 4.In continuous feed experiments,the removal rates of COD and chroma could reach 68% and 91% respectively;BOD/COD is increased from 0.3 to about 0.5

    Study on bio-safety for Nano-Ag/HAp as anti-bacterial materials

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    通信作者:史建陆Tel:(0576)85199572 E-mail: zmfjmu@ gmail.com[中文文摘]目的研究纳米银羟基磷灰石的细胞毒性。方法采用能快速、准确、敏感地评价细胞增殖率和细胞毒性的MTT比色法,以纳米羟基磷灰石为对照组,纳米银羟基磷灰石为实验组,在材料浸提液中,分别检测人牙周膜成纤维样细胞的相对增殖率。另观察细胞在扫描电镜中的形态,从而分析比较涂层表面对细胞的毒性。结果与纳米羟基磷灰石相比,纳米银羟基磷灰石涂层中的纳米银粒子直径在200~400nm时体外细胞培养显示表现出较高的细胞增殖率,细胞毒性趋于0级,显示其具有良好的生物活性。结论纳米银羟基磷灰石涂层无细胞毒性。[英文文摘]Objective To study the cytotoxicity of a Nano-Ag/HAp composite coating on titanium surface.Methods A Nano-Ag/HAp composite coating was deposited on the surface of pure titanium by electrochemical deposition.In vitro celluar responses of the PDLF to the coating were also evaluated by MTT assay.Conventional HAp coatings and commercially pure titanium were taken as control.Results The Nano-Ag/Hap bioceramic coating has good crystallization and homogeneity on nano-scale surface morphology.The PDLF culture exhibits satisfactory bioactivity.Conclusions The Nano-Ag /HAp bioceramic coating on titanium surface has promising prospects in the future clinical application

    人民币汇率调整对我国贸易顺差变动趋势的影响——基于CQMM的预测与分析

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    一、问题的提出2005-2006年在出口增速高位缓慢下降、进口增速大幅下滑的情况下,我国贸易顺差急剧扩大。2004年贸易顺差仅为320.9亿美元,2005年快速攀升至1020亿美元,2006年进一步扩大为1775亿美元。为了缓解对外贸易的不平衡,中国人民银行于2005年7月21日启动了人民币汇率形成机制的改革。市场调教育部文科重点研究基地2005年度重大研究项目“中国季度宏观经济模型(CQMM)”(05JJD790093);; “中国季度宏观经济模型(CQMM_XMU)”由厦门大学宏观经济研究中心与新加坡南洋理工大学亚洲研究中心合作开发。本文是该项目阶段性研究成果

    The relationship between primary productivity and vertical stability of water column in the South China Sea

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    九五”南沙国家科技专项资助!(编号:97-926-04.02);; 国家自然科学基金!(编号:49676296
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