多分子的
- 与 多分子的 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 study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P(210cm)is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.
研究表明:(1)随深度的增高及植物残体中木本残体的增多,总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高,而易水解物含量减少;(2)GC- MS分析显示,正构烷烃,直链烷基2-酮和正烷醇均以长链组分为主,揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主;甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据;(3)通过有机分子标志物与孢粉、植物残体等指标的对比研究表明:脂类化合物对气候变化的反映要比植物种灵敏得多,不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一;(4)泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响,短时间尺度,泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响;长时间尺度,泥炭地有机碳的转化,受气候条件控制;(5)总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律,分析结果显示该泥炭地层形成过程中,1500a B.P(210cm)可作为划分前后晚全新世的界线,前期的基调是气候偏暖,但又有几次偏干冷气候的反复,后期气候以干冷为主,其间虽有几次上升波动,但整体趋势不变。
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Consisting of the protracting graph of hydrogen-like atom"s angle distributing, computer simulation of the symmetry of molecular orbital and chemical reaction mechanism, showing the molecular point group and symmetry element, computer simulation of molecular vibration, Bravias"s crystal lattice and their transforming, extracting of plane periodic lattice, extracting of solid periodic lattice, close packing of isometrical pellet and the structure of simple mental substance, close packing of unequal pellet and crystal structure of representative ionic crystal, Computer Simulation of Phase Analysis by X-ray Diffraction.
内容包括类氢原子角度分布图的绘制,分子轨道对称性和反应机理的微机模拟,分子点群和对称元素显示,分子振动运动的微机模拟,布拉维晶格和晶格转化,平面点阵抽取,立体点阵抽取,等径网球的密堆积和金属单质结构,不等径圆球密堆积和典型离子晶体结构,X射线多晶衍射的微机模拟十个子模块。
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It integrates neuroanatomy, neurophysiology, neurochemistry, molecular biology, psychology, neuropharmacology and neuropathology to explore the structure and functions of nervous system from system, organ, cell and molecule.
它是融神经解剖学、神经生理学、神经化学、分子生物学、心理学、神经药理学、神经病理学为一学科,从系统、器官、细胞和分子多层次探索神经系统结构和功能的学科。
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Currently activities involve (1) Investigation of dye-DNA interaction by using spectroscopic methods to probe the binding sites between chromophore and DNA and to identify various DNA conformational structures, particularly the telomeric DNA;(2) Investigation of the structure-activity correlation of anti-telomerase agents;(3) Design and synthesis new compounds for antitumor agents and fluorescence biomarkers;(4) Monitoring the folding and unfolding of quadruplex structure, tracing the pathway of drug delivery and probing drug-target interaction by using single molecule microscopy and spectroscopy.
目前 的研究重点分别是(1)利用光谱方法探讨探针分子与DNA的交互作用,特别是作用位置与结构变化;(2)研究抗端粒酵素作用分子之结构与生物活性之关系;(3)设计及合成抗肿瘤药剂或萤光生物标记;(4)建立单分子萤光光谱与影像技术,研究 DNA的多变型结构之变化机制,监测药物输送的路径过程及其在细胞中与标的物的作用。
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Accessions from subgenus Amygdalus, subgenus Prunus, subgenus Armeniaca, subgenus Cerasus were studied by RAPD technology and clustered according to mentioned phylogenic contents. Polymorphic information contents were calculated among species in subgenera and demes in P.
运用RAPD技术对223个桃、李、杏、梅、樱类植物进行分子标记,采用聚类方法对上述内容研究,综合两种方法研究结果,探讨桃亚属植物分子系统发育关系,并对引物在各类间的多态信息量分析。
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PP1740 copolymer is a multi phase copolymer,composed of homo-polypropylene,ethylene-propylene rubber,and crystallizable propylene-ethylene copolymer.Homo-polypropylene part offers rigidity and EPR part offers impact strength.The relative ...
研究结果表明,PP1740共聚物由均聚聚丙烯、乙丙橡胶和可结晶的乙丙共聚物组成,具有优良的机械性能;均聚聚丙烯为PP1740共聚物提供刚性,乙丙橡胶可提高PP1740共聚物的抗冲性能;PP1740共聚物的相对分子质量分布呈多分散性,相对分子质量分布较宽;乙丙橡胶的相对分子质量较大,以直径1~2μm球型微粒均匀分布在聚丙烯基体中,有利于提高PP1740共聚物的冲击强度;PP1740共聚物的熔点较高,耐热性好。
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The average percentage of polymorphic bands are 72.06% for ISSR and 66.67% for RAPD respectively. The genetic diversity of ginkgo revealed by ISSR (the average effective number of alleles is 1.8780, the average Nei"s gene diversity is 0.4652, and the average Shannon"s information index is 0.6574) are all higher than those by RAPD (the average effective number of alleles is 1.7842, the average Nei"s gene diversity is 0.4317, and the average Shannon"s information index is 0.6211), while the standard errors of the parameters estimated by ISSR were lower. Therefore, ISSR molecular markers are more suited than RAPD molecular markers when testing the genetic diversity of ginkgo populations and determining the genetic relationship of among populations or among individuals which are much similar hereditarily.
本文应用RAPD和ISSR两种分子标记技术,选取中国5个可能的野生银杏居群共计75个样品,对其遗传多样性进行了研究,得出以下结论:(1)用筛选出的12个RAPD引物和10个ISSR引物进行PCR扩增,分别扩增出65条和68条重复性高、清晰的条带,多态性位点百分率分别66.67%和72.06%,ISSR揭示的银杏遗传多样性(平均有效等位基因数目为1.8780,平均基因多样度为0.4652,平均信息指数为0.6574)高于RAPD所得到的结果(平均有效等位基因数目为1.7842,平均基因多样度为0.4317,平均信息指数为0.6211),其所估算参数的标准差要低于RAPD所估算出的值,因此,在研究亲缘关系非常近的银杏物种的遗传多样性并试图确定居群间或个体间的遗传关系时,ISSR分子标记技术比RAPD分子标记技术更为合适。
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Doesn't war cause more anger, more stife, more suffering, more poverty, more terrorists?
没有战争会造成更多的愤怒,更多stife,更痛苦,更贫穷更多恐怖分子?
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Then the surface of the star polymer was intramolecularly crosslinked using octa(3-azidopropyl)polyhedral oligomeric silsesquioxane, POSS-(N_3)_8,as the inorganic multifunctional crosslinker at high dilution concentration via click chemistry,forming a novel POSS/polymer hybrid nanostructure.Thermogravimetric analysis shows that after surface crosslinking, the thermostability of the core crosslinked PS can be remarkably improved.In the second work,we synthesized of a novel polymer with quatrefoil-shaped topology.
接着,我们合成了一种结构规整的含八个叠氮功能团的无机分子—多面低聚倍半硅氧烷,以其为交联剂,我们通过Click反应在即稀浓度下实现了前驱体星型聚合物的分子内表面交联,得到了外层为无机分子交联,内层为有机高分子的星状高分子,这种新型的星状聚合物表现出了优良的热稳定性能。
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The emulsion quartz stone material protective agent's solute has certain active multi-compositions and so on of functionality siloxanes and fluorine silicon hydride, this kind groups with the active ingredient carry alcoholysis reaction the ion condition water on quartz stone material surface, thus causes the siloxanes and the fluorine siloxanes has chemistry keying connection with the quartz stone surface, from outside to inside of the quartz stone surface and stone inside pore surface forms a kind of complex network structure, this kind of network structure is extremely dense, it may filter polar and carbon dioxide, slows down the speed that water molecules go in and out the quartz stone pore, so the quartz stone will not be soaked by the water molecules, meanwhile to be a barrier to stop alkaline compounds and salt to infiltrate from an interface to another, also can have the very good physical enhancement effect.
乳液型石材防护剂的溶质是具有一定活性的多官能度的硅氧烷和氟硅烷等组成,这种带有活性成份的基团与石材表层离子态水进行醇解反应,从而使硅氧烷和氟硅氧烷与石材表面进行化学键连接,由外向内在石材表面和石材内部毛的表层形成一种结构复杂的网状结构,此种网状结构极其密实,它可将极性水分子和二氧化碳进行过滤,减缓水分子进出石材毛孔的速度,不会被水分子浸湿,同时还有阻隔石材不同界面的碱性化合物和盐份向另外一个界面渗透,同时还能起到很好的物理增强效果。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。