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Isolation, cultivation and identification of human embryonic NSC from cerebral cortex of 7-12 week abortus. By using flow cytometry and MTT assay, the effects of various concentration of TSPG and TSPG cooperating with cytokines in NSC culture media for 3 days on proliferation of human embryonic NSC has studied. By employing immunocytochemistry assay of the expression of tyrosine hydroxylase, the effect of different dilution of TSPG and TSPG cooperating with IL-1 on induced differentiation of human embryonic NSC into dopaminergic neuron has researched.
从7~12周人工流产胚胎脑组织中分离培养人胚胎NSC,免疫细胞化学鉴定NSC特异性nestin抗原表达,在NSC的培养体系中加入TSPG,采用流式细胞术和MTT法检测不同浓度TSPG以及TSPG与EGF,bFGF联合应用对人胚胎NSC增殖的影响;经免疫细胞化学检测培养细胞酪氨酸羟化酶表达,分析不同浓度TSPG以及TSPG与IL-1联合应用对NSC定向诱导为DA能神经元的影响。
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The result showed that the carrier concentration of IMO was less than one third of that of ITO.So,the absorptance of visible light in IMO is lower than in ITO,there might br more space to improve the conductivity of IMO.
因此,IMO薄膜对可见光的吸收小,有很大的发展空间可以通过提高载流子浓度而进一步提高电导率,对近红外线也有较高的透射率,有利于拓展透明导电薄膜的应用领域。
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The effects of the mass ratio of polyvinyl alcohol and chitosan,the volume of acetum,the concentration of crosslinker on swelling ration are studied and optimized using orthogonal experimental method.
凝胶溶胀度随着聚乙烯醇与壳聚糖质量比、交联剂戊二醛浓度的增大而减小,随着溶剂醋酸溶液体积增加而增大
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In order to explore the optimum condition of transition of Pb, the transfer behavior of Pb through the emulsion liquid membrane system of TBP-Span80-atoleine-kerosene was studied. The study analyzed the effect of Pb transport rate of membrane phase component, pH values in external aqueous phase, acidness in internal aqueous phase, rew and concentration of metal ions in external aqueous phase. In the case of the optimal technological conditions, the waste water of Pb, Cu and Ni was treated.
为了探求乳化液膜法迁移铅Pb(Ⅱ的最佳条件,采用磷酸三丁酯-Span80-液体石蜡-煤油乳化液膜体系研究了Pb的迁移行为,探讨了膜相组成、外水相pH、内水相酸度、乳水比、Pb起始浓度对Pb迁移率的影响,确定了最佳迁移条件,并在此条件下对含Pb、Cu和Ni废水进行了处理。
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The stress distribution of adhesively-bonded metal/metal single lap joints under tensile shear loading is analysed using elastic-plastic finite element method .The influence of lap length on the strength of adhesively bonded metal joints which are bonded with phenolic resin and acrylic resin respectively is discussed in detail. It is shown that adhesive has great influence on the stress distribution of the lap region. With the increment of lap length, the stress concentration of adhesive layer decreases.
本文在对国内外关于金属-胶层复合材料接头力学性能数值研究及发展现状进行综述的基础上,运用有限元法并结合实验手段主要研究了胶接接头承载后的力学行为,综合考虑了几何尺寸和物性参数对接头强度和应力分布的影响,并运用层次分析法对胶接质量进行综合评估,综合考虑接头形式,制造工艺,操作人员素质等因素的影响。
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Currently, the impact of excessive phosphorus on water bodies focuses on eutrophication and algae overrun, which have been the hotspots and intractable problems for environment protection in China, essentially an outcome of the concentration of the compounds of nitrogen and phosphorus, and the heavy reproduction of aerobe.
当前过量磷对水体产生的影响集中地表现为富营养化和藻类繁生现象,其实质是耗氧有机物及氮、磷化合物的生态环境效应。它们已成为我国环境保护的热点甚至是十分棘手的控制治理问题。
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Calculation results show:(1) Initial concentration of SO〓 has great effect on utilization efficiency of limestone;(2) An optimal value of Ca/s is between 2~3;(3) the calculation results are good agrement with experimental results, they can explain the reaction nature of CaO and SO〓 under furnace injection.
计算结果显示:(1)初始SO〓浓度对石灰石利用率存在很大的影响;(2)当Ca/S在2~3之间存在一个最佳值;(3)计算结果与实验结果符合较好,可以反映炉内喷射条件下CaO与SO〓的反应。
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For improving the air quality, the concepts of age of air are introduced and the solutions of age of air and ventilation efficiency are obtained by using tracer gas concentration of typical points of the cabin.
为了提高客舱内空气品质,引入了空气龄的概念并给出了由客舱内典型点的示踪气体的浓度求空气龄及通风效率的方法。
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Ping chuan-fang prescription is carefully composed accordingly. The clinical investigation shows that PCHF can not only alleviate symptoms and physical sign of the patients effectively, but also shorten the course of disease and obviously can not only alleviate symptoms and physical sign of the patients effectively, but also shorten the course of disease and obviously improve the pulmonary function of the patient. The animal experiment showed that PCHF can prolong the asthmatic time and low the concentration of WBC, EOS, IL-4, ET-1 in the blood and BALF. It can restrain the collection of EOS in the lung and relieve the inflammation caused by EOS. It also can cut down the secretion of the respiratory air-way and relieve the obstruction of it.
动物实验表明:平喘方能明显延长卵蛋白造模大鼠的引喘潜伏期,且与氨茶碱对照有非常显著性差异(P<0.01);能降低哮喘模型大鼠血浆及肺泡灌洗液中白细胞、嗜酸性粒细胞及IL-4、ET-1的含量;能抑制肺局部EOS的聚集,明显减轻由EOS浸润引起的慢性变应性炎症反应;能减少气道分泌物,减轻细支气管及小血管管壁的增厚,减轻周围组织的水肿,从而减轻气道的阻塞,最终改善肺通气,缓解喘息症状。
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Ammonium carbamate was found to be the best ammonia donor for the reaction and its favorable concentration is 120~160 mmolL^(-1). The optimal water activity, reaction temperature, pH value and concentration of D, L-HPGME are 0.55~0.75, 35~40℃, 7.5~8.0 and 40 mmolL^(-1), respectively.
该反应的最适氨源为氨基甲酸铵,其较佳浓度为120~160mmolL^(-1);最适水活度、反应温度、pH值、对羟基苯甘氨酸甲酯浓度分别为0.55~0.75、35~40℃、7.5~8.0和40mmlL^(-1)。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。