物
- 与 物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The action spectrum analysis shows that the structure of daidzein-phospholipid complex is different from the reactant monomers and their physical mixture.The complex is a new product that is significantly different from those of daidzein.
对制备出的复合物进行紫外光谱、红外光谱、差热和X-衍射等光谱学分析,结果表明,大豆黄素与磷脂形成了复合物,且复合物是不同于反应物单体及单体物理混合物的新物相。
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Fragments from the 239th to the 944th nucleotide of the coding regions of all actin mRNAs were amplified with two actin specific primers. Fragments from the 239th nucleotide of the coding region to the end of actin mRNAs were also amplified The electrophoresis results were compared between the macropterous and brachypterous brown planthoppers.
利用两条肌动蛋白特异性引物,扩增出了肌动蛋白基因mRNA的编码区片段,另外,将肌动蛋白特异性引物作为上游引物,将与3'锚定反转录引物部分序列相同的引物作为下游引物,扩增出了从肌动蛋白基因mRNA的编码区第239号碱基到Poly尾的这段cDNA,并在翅型之间作了比较。
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We studied the fluorescent capability of Binolate lanthanide complexes. Thefluorescent analysis shows that both ligand and complexes exhibit luminescence. Insolid state and solution, they have the different luminescence mechanism, intensity andcolor. So we can synthesize the complexes of dissimilar fluorescence performance bychanging the state and solvent polarity. According to the literatures, the complexes playan important role in luminescence material and probe with the development of theinformation technique.
对合成的八个邻萘酚稀土配合物进行发光性能研究,通过荧光光谱分析显示,配体和配合物都能够发出荧光,并且在固体状态和溶液中的发光机制、光强度及发光颜色都不同,所以通过改变邻萘酚稀土配合物的状态以及所选溶剂极性的不同,可以得到荧光性能不同的邻萘酚稀土配合物;根据查阅的文献可知,这类配合物在发光方面的应用很少,所以在当前信息显示技术高速发展的今天,邻萘酚类发光稀土配合物在发光器件、荧光探针等材料的研究领域当中不仅具有理论意义还有实际的应用价值。
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The stable or unstable state of the montmorillonite-water dispersion is mainly effected by the properties of montmorillonite, water, and stabilizers as well as their interactions, while the type, the structure, the properties and the concentration of the stabilizer play dominate roles. Based on the molecular designing clues, this research selected three sulfonated copolymers as the stabilizers, i.e. the sodium 2-acrylamido-2-methyl-1propane sulfonate /acrylamide /disodium itaconate terpolymer, the AMPS/AM/N-vinyl pyrrolidone terpolymer and the sodium styrenesulfonate /IA copolymer. The preparation and characterization of the sulfonated copolymers were discussed, the high-temperature stability of the montmorillonitewater dispersion was characterized with the rheology, the filtration, the particle size distribution, the electrostatic properties, and the adorption of the sulfonated copolymers onto montmorillonite particles. At the same time, a systematic mechanism of the hightemperature stabilization of the dispersion was presented.
本文构筑了分子设计的思路,选取AMPS(2-丙烯酰胺基-2-甲基丙磺酸钠)/AM/IA三元共聚物、AMPS/AM/NVP三元共聚物和SSA/IA二元共聚物等三种磺化共聚物作为蒙脱土-水分散体系的高温稳定剂,进行了磺化共聚物稳定剂的制备与表征;从流变学、滤失性能、粒度分布、电性质以及磺化共聚物在蒙脱土上的吸附作用等方面,对蒙脱土-水分散体系的高温稳定性进行了研究,考察了蒙脱土-水分散体系的高温稳定性能,同时提出了高温稳定机理。
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The main contributions of this thesis are:(1) Seven mononuclear complexes of tetradentate ligand NTB have been obtained using N〓 or SCN〓 as the additional ligand;(2) Seventeen binuclear complexes of Fe , Zn , Co , Cu have been designed and the complexes of Co , Cu exhibit antiferromagnetic properties;(3) Changing the bridged-ligand such as PO〓, CO〓, o-phth, mai, Ag (CN 〓, Au 〓, etc , fourteen tetranuclear complexes of polypridine ligand have been synthesized;(4) Two antiferromagnetic 1D chain complexes of KH〓pdc ligand have been prepared from hydrothermal reactions; in addition, one ferromagnetic 1D chain copper complex of tpdp which is bridged by oxalate has been obtained.
本论文的主要贡献为:(1)合成了配体NTB的七个新型单核配合物;(2)合成了十七个铁、锌、钴及铜系列混桥双核配合物,其中双核钴和双核铜配合物为反铁磁偶合;(3)选用多吡啶配体tpdp和TPA,改变桥联配体,合成了十个四核配合物;(4)选择配体KH〓pdc,采用水热合成方法得到了反铁磁性一维链状锰、铜配合物;以草酸根为桥联配体,合成了配体tpdp的一维链状铜配合物,该化合物为铁磁偶合,文献较少报道。
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According to Johnson's Rule and IR spectra, their possible structures are suggested. The bonding parameters of those complexes are calculated by ESR parameters. And the crystal field parameters are calculated by using electronic spectral data. It can be seen that the vanadyl complexes in the solution are ionic complexes and that the α〓 values of those complexes decrease following the increasing of the N donor replacing the O donor of water on the equatorial plane in those complexes. This means that the covalent bonding between vanadium and ligand increases as Ser, Phen or Bipy replace water ligands. The results show the competitive coordinate law that the coordination reactivity of Phen and Bipy is much stronger than that of Ser. The simulation program of ESR is compiled by the theory of ESR in the present work.
测定了VO-丝氨酸二元体系、VO-丝氨酸-邻菲咯啉三元体系和VO-丝氨酸联吡啶三元体系在不同酸度下(pH=1.0~14.0)的乙二醇/水(V/V=1:1)溶液低温ESR谱,发现不同pH下,溶液中具有不同组成的配合物,根据不同pH下ESR谱的变化,利用Johnson的加合规则并结合红外光谱,推测了它们在溶液中的可能结构;利用波谱参数计算了配合物键参数;利用电子光谱数据计算了配合物的晶体场参数,讨沦了它们的成配特性,结果表明:VO配合物属离子型配合物,随取代水分子的配体(Ser、Phen或Bipy)数目增加,键参数减小,配合物共价性增强,同时得出这些体系中,生物配体竞争配位规律:Phen和Bipy与VO的配位能力比Ser强。
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To improve the effect of CDCA on dissolving cholesterol gallstone, the water-soluble copolymers as polycarboxylic acid of comb-like copolymers and C_(60)-PCC were synthesized, which being used for modification of CDCA and strengthening effects of CDCA on dissolving the cholesterol gallstones by their entropy-repelled properties of comb-shaped side chains in buffers of phosphate and in model bile.The design theory of polymer was mainly employed to synthesis the conjugate of PCC-CDCA and C_(60)-PCC-CDCA by C_(60), polyoxyalkylene allylalkyldiether and maleic anhydride, which were copolymerized with AIBN as initiator, and then PCC or C_(60)-PCC were reacted with CDCA. The structures of the copolymers and the conjugates of PCC-CDCA and C_(60)-PCC-CDCA were confirmed with IR, TLC and TEM. The dissolving effects and the dissolution kinetics mechanism of cholesterol gallstone was inverstigated in PBS and in model bile of different cholesterol saturated index at pH7.4, including PCC-CDCA or C_(60)-PCC-CDCA.
利用高分子设计理论,以烯丙基聚氧乙烯基醚、顺丁烯二酸酐、C_(60)和CDCA为原料,以偶氮二异丁腈为引发剂,合成具有梳状侧链结构的梳状共聚物-CDCA结合物和C_(60)-梳状共聚物-CDCA结合物,以IR、TLC和TEM法表征共聚物的结构,并在pH7.4的PBS液和不同胆固醇饱和指数的模拟胆汁中进行溶石效果的研究,探讨在PBS液和不同CSI的模拟胆汁中结合物溶解胆固醇结石的效果和溶解动力学机制。
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In despite of long primer PCR reaction performed under low stringency or high stringency or by two steps, the assay showed that the PCR products which were clear and bright did not include the target sequence.
因此,本实验中的长引物(19、22碱基)不适合单引物PCR;在较短的引物中,6、8碱基引物不适用于单引物PCR,而10碱基单引物PCR则是一种可行性较高的染色体步移策略。
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The method is just like the QuikChange site-directed mutagenesis method except for its special primer. This pair of primers is composed of a long primer and a short primer which is central overlapped.Both of the Tm of 5\'sequence in long primer and Tm of 3\'sequence in short primer are above 66℃.The Tm of short primer is almost half of that of long primer.It is convenient to perform insertion or substitution mutation of DNA fragments larger than 20bp,In addition,it is highly applicable in research about the deletion mutation of DNA fragments larger than 2000bp.
我们实验室一直在寻找一种简单高效的可以用于基因的删除、插入及替代突变的方法,通过大量研究和实验发现,可以使用一种基于反向PCR原理,使用全新的引物设计的突变方法——&COP&突变法,该方法采用与QuikChange点突变法相同的操作步骤,其策略是设计一对中心重合的引物,长引物的5\'端序列和3\'端序列的Tm值均不低于66℃,短引物Tm值约为长引物一半,且与长引物中心重合互补。
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Sediments of this system were sequentially extracted in natural granularity. The result showed that there was a good linear relationship between organic matter and org / bact P contents in sediments. This organic matter in sediments was the source of org / bact P. The total phosphorus in sediments dominated the content of total dissolved phosphorus and phosphate in interstitial water. In addition, there were good relatiohships between total phosphorus in sediment and the total dissolved phosphorus in interstitial water, and between total phosphorus in sediment and phosphate in interstitial water. FeP and AlP in sediments were correlative with Eh and phosphate in interstitial water, respectively. This showed that the FeP and AlP contents were affected by Eh in interstitial water and the total content of FeP and AlP dominated the content of phosphate in interstitial water.
对沉积物—间隙水中磷形态的连续提取分析发现,自然粒度下,沉积物中有机质含量与沉积物中有机/细菌聚合磷存在很好的线性相关性,说明沉积物中有机质是有机/细菌聚合磷的源;沉积物中总磷决定间隙水中总溶解性磷和溶解性磷酸盐的含量,并且总磷与间隙水中总溶解性磷和溶解性磷酸盐存在很好的相关性;沉积物中FeP和AlP分别与间隙水中的Eh和溶解性磷酸盐存在相关性,说明Eh的大小严重影响FeP和AlP的含量,但是FeP和AlP含量之和又主导着间隙水中溶解性磷酸盐的含量。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。