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Methods: from prepation of crude drug as start, study the technology of extract and defat with L9 (3~4) orthogonal test. With EtOH extraction and water sed, alkali washing, EtOAC extraction as main methods of eliminate dopant. Finally with alky AlzO3 chromatographic column, rich and gain anticancer active site. The maximum response was achieved at a 40 min extracting time with 10 times volume 90% EtOH added to the sample for the first time and 30 min for the second time. Adding 10 times water will produce precipitation; Place the precipitation into 6 times petroleum benzin to de-fat at 60℃.

云南红豆杉中抗癌活性物制备工艺研究方法:利用正交设计试验L9(3~4)确定原料药提取工艺为:10倍量90%乙醇提取两次,第一次40分钟,第二次30分钟;醇提液用10倍量水沉;沉淀加6倍量石油醚40℃脱脂;用1mol/L的NaOH溶液碱洗,除去酸性杂质;以碱性氧化铝柱,以环己烷/丙酮为洗脱溶剂,在环己烷-丙酮(6:4)段富集到所需活性部位,洗脱剂用量为3VB。

Catalysts are made by impregnating a porous transition alumina support with an aqueous solution of a copper ammine carbonate complex, draining off any excess of the impregnating solution, and then heating the impregnated support to a temperature above 80 DEG C to decompose the complex thereby depositing a basic copper carbonate compound on the surfaces of the pores of the transition alumina support.

用作例如催化剂的铜/氧化铝组合物,通过用碳酸铜氨配合物的水溶液浸渍一种多孔氧化铝载体,排出任何多余的浸渍液,然后加热所浸渍的载体到80℃以上的温度来分解所述配合物,从而在所述过渡型氧化铝载体的气孔表面沉积一种碱式碳酸铜来制备。

Objective:To study the change of Cerebrospinal fluid Myelin Basic protein for acute craniocerebral injure.

目的:为探讨急性颅脑损伤患者脑脊液中髓鞘碱蛋白的变化及意义。

Objective: To study osteogenic capability of rabbit bone marrow stromal cells and biological characteristical identification in vitro in order to explore the appropriate methods of osteoblast culture in vitro and to select an idea source of seed cells for bone tissue engineer.

目的:研究兔骨髓基质细胞在体外培养条件下的成骨能力及生物学特性,探讨简便易行的成骨细胞体外培养方法,为组织工程选择理想的种子细胞来源。方法:取新西兰白兔骨髓液经离心后得骨髓单个核细胞,以1× 106/ml的细胞浓度进行培养,经传代培养,选择条件培养液培养(1640完全培养液中加入地塞米松10-8Smol/l,β-甘油磷酸钠10mmol/l,VitC 50μg/ml)作为骨髓基质细胞增殖和成骨的调节因子,通过倒置显微镜、HE染色、扫描电镜、碱磷酸酶(alkaline phosphatase,ALP)测定、Ⅰ型胶原免疫组化染色和四环素荧光钙染色等手段对获得的细胞进行生物学特性研究。

It was discovered that this modified kaolin had ideal capability of removing arsenic from water because of its giant active surface and coordinate action, intensify, for arsenate ions AsO(superscript 3- subscript 4 and Fe(superscript 3+) fixed on the framework, and achieving the aim of removing the minimal content of arsenic from the water.

以高岭土为原料通过碱熔合成得到类似于分子筛的笼状骨架结构,并将Fe(上标 3+)通过离子交换吸附,负载在其骨架上,实现改性;利用改性后的吸附剂具有大的活性表面积,以及砷阴离子AsO(上标 3-下标 4与Fe(上标 3+)的强配位能力,实现了基于配体交换的固液分离的从微量含砷水中去除砷。

The effects of the dehydration parameter such as temperature, electric field, demulsifier, the concentration of the iron sulfide, polymer, and water in crude oil on the dehydration current was investigated in this experiment. The reasons that the Electric field of the dehydrator is collapsed were analyzed. And some methods could decrease the dehydration current were put forward.

利用该套小型静态模拟电脱水器试验装置考察了在直流电场下,脱水温度、脱水场强、破乳剂、Fe含量、聚合物含量、碱含量表活剂含量和原油含水量等因素对脱水电流的影响,分析了电脱水器垮电场的原因,并提出了降低原油乳状液脱水电流的方法。

The role of arginine to assist protein refolding was similar to that of acetone, both of them were able to combine with the denature lysozyme and improve the refolding yield.

结果表明,与自发复性收率(40%)相比,复性液中添加精氨酸、甘油、乙酰胺、丙酮、硫脲、海藻糖和甜菜碱均能有效提高变性溶菌酶的复性收率。

It can produce tempered bead wire in the range of 0.80~1.65?mm?Electrolyzation alkali wash and pickling are used to treat the surface.The solution is water bath system at constant temperature.

钢丝的表面处理采用电解碱洗和电解酸洗,镀液采用水浴恒温系统,气吹系统设计独特,水洗采用阶梯压力冲洗,产品性能稳定。

A new type of electrolysis separating device is designed to solve the problem in treating plating sewage by ion exchange technique. With electric current efficiency being up to 80.5%, it could effectively separate acid or alkali from ion exchange eluate.

针对离子交换技术处理电镀废水所存在的问题,提出了一种新型的电解装置,它能将离子交换洗脱液中的酸/碱有效地分离出来,电流效率高达83.5%。

Surfactant/polymer flooding become a new flooding means, which can furthest exert viscoelasticity of polymer, decrease effect of emulsion and make a clean sweep of encrustation of stratum and mineshaft due to being alkali. In this paper several dozen kinds of surfactants were screened for the polymer/surfactant system.

表面活性剂/聚合物二元复合驱作为一种新的驱油方法,可以最大限度地发挥聚合物的粘弹性,减少乳状液带来的不利影响,彻底清除由于碱的存在引起的地层及井筒结垢现象。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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