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By knowing development situation domestically and abroad of coagulant, we have prepared two kinds of inorganic polymer flocculant which is polysilicic-acid containing aluminum sulfate and zinc sulfate and Polysilicic acid containing magnesium sulfate and zinc sulfate on the basis of preparing the polysilicic acid.

本文通过较全面的分析国内外絮凝剂的发展情况,在制备聚硅酸的基础上,制备了两种新型的锌系无机高分子絮凝剂(聚硅酸铝锌和聚硅酸锌镁)。

The 1/2 MS medium supplemented with 1.0 mg·L-1 BA and 0.1 mg·L-1 NAA was very beneficial to the protocorm differentiation and propagation of D.candidum .The highest protocorm propagation index was obtained from the medium containing the activated carbon.The highest root numbers and length were observed in plants growing in 1/2 MS medium containing 0.5 mg·L-1 NAA.

结果与结论:添加20%马铃薯液有利于种胚的萌发,种胚萌发率为79.37%;BA 1.0 mg.L-1和NAA 0.1 mg.L-1最有利于原球茎增殖,培养基中添加2%活性碳原球茎增殖倍数高;NAA有助于试管苗的生根,不同含量NAA以0.5 mg.L-1时试管苗平均根数最多和平均根长最长。

Trees, shrubs, or sometimes herbs containing resin or oil in schizogenous spaces or canals and sometimes black or red glands containing hypericin or pseudohypericin.

乔木,灌木、有时为草本,在裂生空隙或者管道里含有树脂或者油,有时具有包含金丝桃蒽酮或者假金丝桃蒽酮的黑色或红色的腺体。

Acetone and SDS have been added to CH2CL2 solution containing PLA. After sonification of 20 minutes, this polymer solution has been dropwisely added to aqueous solution containing 8-14% Pluronic F-68 surfactant and stirring with homogenizer (25000 rpm). With rota-evaporator to remove solvent, polyester nanoparticles possessed average size between 61 and 64 nm. Other combinations of surfactants, such as : SDS and PVA, PAA and SDS, used in preparation of nanoparticles of polyester, resulted in much larger particles compared to above.

丙酮和十二烷基硫酸钠加入溶於二氯甲烷的聚乳酸中,并经超音波振荡20分钟,所产生的高分子微粒溶液再滴入以均质机搅拌(25000 rpm)含有(8-14%) Pluronic F-68界面活性剂溶液中,经减压浓缩除去溶剂后,奈米聚酯微粒平均粒径大小为61-64 nm,其他界面活性剂组合,包括十二烷基硫酸钠与PVA、PAA与SDS,其产生聚酯平均粒径皆大於此。

PK values of 3-ethoxy-N-desmethyldiazepam (3-EtO-NDZ) in ethanol and acetonitrile containing various concentrations of sulfuric acid, determined by spectrophotometry and spectropolarimetry, were found to be 3.4 and 0.63 respectively. Temperature dependent racemization of enantiomeric 3-EtO-NDZ in ethanol containing various acid concentrations was studied by monitoring changes of ellipticity at 365 nm as a function of time on a spectropolarimeter.

3-乙氧基-N去甲基安定(3-EtO-NDZ;diazepam=安定)在含不同硫酸浓度的乙醇和乙腈中的pK值用光谱法和旋光光谱法作了测定,其结果分别为3.4和0.63.3-EtO-NDZ之对映异构体在含各种不同酸浓度的乙醇中与温度相关的消旋过程,用旋光光谱仪选择其圆二色谱在365nm波长处强度的改变为时间函数的方法作了测定。

METHODS: Bone marrow was sterilely separated from human. After heparinization, human BMSCs were harvested using density gradient centrifugation and adherence method. At the fifth passage, BMSCs at 1×108/L were incubated in the 6-well plate and divided into 2 groups. BMSCs in the edaravone group were 50% confluent and incubated in L-DMEM containing basic fibroblast growth factor and fetal bovine serum for 24 hours. After washing in PBS, these BMSCs were incubated in serum-free L-DMEM containing 20 mg/L edaravone for 24 hours. BMSCs in the blank control group were incubated in L-DMEM, supplemented with 10% fetal bovine serum.

无菌抽取的骨髓经肝素化后,采用密度梯度离心法及贴壁筛选法分离获得人骨髓间充质干细胞,传至第5代按1× 108 L-1接种于6孔板内,设立2组,依达拉奉组细胞达50%融合时用含碱性成纤维生长因子、胎牛血清的L-DMEM预诱导24 h,PBS洗涤后再用20 mg/L依达拉奉无血清L-DMEM诱导24 h;空白对照组始终用含体积分数为10%胎牛血清的L-DMEM培养,不加任何预诱导剂和诱导剂。

This paper defines two concepts, Component Automaton Containing Subelement and Team Automaton Containing Subelement, in a mathematically precise way at first, then gives a formalized description of the auto update problem utilizing the above concepts.

该文提出了带子元素群组自动机和带子元素组件自动机的概念,并利用这两个概念给出了同步问题的形式化描述,明确提出并解决了计算机支持的协同编著系统中的自动更新问题原型。

Several technologies for sulphur recovery from solid waste containing sulphur generated during sulphuric acid production and sulphonation and liqiud waste containing sulphates generated in phosphoric acid manufacture are described.

介绍从硫酸和磺化剂装置产生的含硫废渣以及从磷酸装置产生的含硫酸盐废液中回收硫的几种技术硫过滤机的滤饼和熔硫沉降槽的梳渣与65%发烟硫酸或液体SO3一起送入反应器生成SO2,SO2作为产品或送入硫酸厂生产硫酸,惰性物料干燥后填埋处理。

In vitro transcripts from RNA5 wild type clone were co-inoculated into Tetragonia expansa with the RNAs of Hu3 isolate containing RNA1, 2 and 3. Following RT-PCR and Northern blotting results shows RNA5 could be biologically replicated in the leaves. The virus concentration of the isolate containing RNA5 in T. expanxa was higher than that of the isolate Hu3 evaluated by ELISA detection.

野生型RNA5的体外转录物与含Hu3(RNA1+2+3)分离物的总RNA混合接种番杏叶片的RT-PCR和Northern blot检测结果都表明,野生型RNA5能够在接种寄主体内复制,并且ELISA检测证明含有RNA5的番杏病叶中病毒浓度高于不含RNA5病叶的病毒浓度。

In order to get the information of interaction between metal complex and DNA and select metal complexes which can cleave DNA effectively, twenty seven transition metal complexes containing O/N coordinate atoms have been synthesized in this thesis. We report the synthesis, crystal structure and properties of the complexes. One of the complexes is the first μ〓-oxalato tetranuclear Cu complex, in which there is ferromagnetic interaction between the copper atoms bridged by oxalate ions. Two trinuclear copper complexes containing partial cubane Cu〓O〓 cores have been synthesized and discussed the magnetic properties.

为了解金属配合物与DNA的相互作用及筛选能有效切割DNA的金属配合物,为无机药物合成及应用提供基础信息,本文利用十个含N、O原子的多齿配体设计合成了二十七个未见文献报道的过渡金属配合物,并解析了它们的晶体结构:其中包括首例μ〓-草酸根的四核铜配合物;合成了两个具有μ〓-OH〓三核缺角立方烷结构的Cu配合物;以HCBP衍生物为配体合成了七个过渡金属配合物;以SCN〓、N〓,C〓O〓等为桥联配体,以dmpyen为端基配体合成了十一个配合物。

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There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式,可以避免教学形成模式後的僵化现象。

In addition, the mass transfer process of main components in the heat pump cycle, such as a generator and an absorber, is analyzed, and the mass trasfer model, the relation of its separation effectiveness with the thermodynamic inconvertibility are described.

根据热力学第一、二定律,从理论上建立了描述该类热泵的数学模型。从热力学不可逆性原理出发,分析了热泵循环过程的热力学不可逆性引起的〓损失。