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On the basis of HPLC analytical results, a reaction mechanism between chlorine dioxide and phenol had been proposed. The rate control step in the process of reaction was studied by using ab initio method. Opmital geometry of every species in reaction was caculated by the available gratient optimum software. The result of harmonic vibrational frequencies indicated that phenolate radical was a stable intermediale product.

根据对ClO〓氧化苯酚后的高压液相色谱图,提出了ClO〓与苯酚氧化反应的机理,并对反应机理中的速度控制步骤进行量子化学理论剖析,利用梯度优化软件计算了参加反应物种的平衡几何构型,振动频率分析的结果表明:酚氧自由基是稳定的反应中间体,利用ab initio计算软件计算了参加反应物种的总能量,酚盐负离子中的氧原子电荷密度,布居数和前线轨道。

In the rhombohedron, each top site is occupied by a pair of ligand-unsupported Ag atoms which are surrounded by six phenol groups in an ethane-like structure. The phenol groups at another ends of the ligands bridge the rhombohedrons into novel non-interpenetrating three-dimensional network.

在每个棱柱体内,每个顶点由无桥连配体支持的、周围的六个酚羟基以一种不寻常的、类似于乙烷分子结构的扭曲方式排列的一对 Ag 原子占据,配体另一端酚羟基将棱面体连接成新颖的非穿插的具有棱形通道(沿 a 和 b 轴方向)的三维网络结构。

In China,natural lacquer has been studied for a long time.Because to separate natural homologous is very difficult,it is almostimpossible to obtain a great deal of pure sample.So the structure ofmain constitute of Chinese lacquer urushiol has not an identicalresult due to the incomplete structural data. The urushiol diacetate derived from urushiol have beensuccessfully separated using centrifugal rotational TLC withpreparative silica get thin layer coated silver nitrate.

天然漆的研究,在我国有较长的历史,漆酚组分及结构做过一些工作,但由于天然同系物之间分离的困难,不易大量得到纯的样品,只能通过零星结构数据推断结构,致使中国生漆漆酚主要组分的结构没有一致的认识与确切的结论。

Wood Vinegar is a natural material that is distilled from wood. It is compose of organic acid and hydroxybenzene , Various dosage of wood vinegars, pyrolignerous acid and guaiacol were mixed into organic manure firstly in this experiment, and then, the above said organic manure are separately added into soil. Under the analysis of the amount of the edaphon, adding 10g wood vinegar to 1kg organic manure and 30kg soil can much active the edaphon effectively in a short term and make a maximum rising extent of edaphon numbers.

木醋液是从多年生柞木中经过高温蒸馏出来的纯天然物质,其主要成分是有机酸和酚类物质,为了明确木醋液和主要成分对土壤微生物的作用,将加入不同剂量的木醋液、愈创木酚、醋酸的有机肥施入土壤,观察土壤中微生物数量的变化,结果表明:在1kg有机肥中加入10g木醋液,施入30kg土壤中,土壤微生物数量增加幅度最大,土壤微生物10天内被有效地激活;同时,当在1kg有机肥中木醋液的添加量高达50g时,对土壤微生物有一定的抑制作用。

Wood Vinegar is a natural material that is distilled from wood. It is compose of organic acid and hydroxybenzene , Various dosage of wood vinegars, pyrolignerous acid and guaiacol were mixed into organic manure firstly in this experiment, and then, the above said organic manure are separately added into soil. Under the analysis of the amount of the edaphon, adding 10g wood vinegar to 1kg organic manure and 30kg soil can much active the edaphon effectively in a short term and make a maximum rising extent of edaphon numbers.

木醋液是从多年生柞木中经过高温蒸馏出来的纯天然物质,其主要成分是有机酸和酚类物质,为了明确木醋液和主要成分对土壤微生物的作用,将加入不同剂量的木醋液、愈创木酚、醋酸的有机肥施入土壤,观察土壤中微生物数量的变化,结果表明:在1kg有机肥中加入10g木醋液,施入30kg土壤中,土壤微生物数量增加幅度最大,土壤微生物10d内被有效地激活;同时,当在1kg有机肥中木醋液的添加量高达50g时,对土壤微生物有一定的抑制作用。

Derivatives of Naphtol AS as the second coupling component were used in mixed coupling and the effect of its added amount on the colour strength,hue,flowability and dispersing extentof pigments was studied.

对含有极性基团(—COOH,— SO3 H)的色酚 AS衍生物的合成及其反应的影响因素进行了研究;合成了 4种新的色酚 AS苯环 3或 4上含有— COOH或— SO3 H基团的衍生物;利用该类衍生物作为第二偶合组分,采用混合偶合工艺对颜料红 57∶ 1进行改性研究,研究了其添加量对改性颜料的着色力、色光、流动性以及在水介质中的分散性的影

In summary, the BRD7 gene acted as a candidate of tumor suppressor gene with NPC. The overexpression of BRD7 can partly reverse malignant phenotype of NPC cell line. The suppression effect of BRD7 on NPC tumorigenesis my be achieved by recognizing acetylated histone peptide through their motif-bromodomain, then modulating gene transcription by taking part in histone acetylating and chromosome remodeling, finally influencing signal-transduction pathways.

综上所述,BRD7基因作为一个重要的鼻咽癌抑瘤基因侯选者,在鼻咽癌细胞中的过表达后,可导致鼻咽癌细胞 HNE蛋白质表达谱发生改变,逆转其恶性表型,其作用机理可能是:BRD7基因通过其功能域彭聪硕士学位论文10Bromodomain与乙酚化的组蛋白特异性结合,参于染色体的乙酚化,染色质的组装,从而影响基因转录的调控,最终影响细胞内的信号传导通路并实现对细胞周期的调控,从而发挥抑制鼻咽癌细胞生长的作用。

The types,structures of substrates and reaction mediums for the enzymatic synthetic polyphenol resin was surveyed and the manufacturing method,product structure and their performances of the polyphonel resin and aldehyde resin were compared.

概述了酶催化合成聚酚树脂用酶的种类、底物的结构、反应介质;比较了该树脂和传统酚醛树脂的生产、结构及性能特点;指出了其不仅具有良好的耐热性能,可作传统酚醛树脂的替代品,而且具有导电、发光等功能,在光电材料方面显示了极强的应用潜力,但降低HRP催化合成聚酚树脂的成本是其实现工业化亟待解决的问题。

RESULT: The K or K of laetrile, paeoniflorin and paeonol had no significant difference at concentration of 19.2~304.8, 18.4~329.5 and 7.8~125 μg/mL respectively or in four different regions of rat intestinal tract, the absorption quantity of laetrile, paeoniflorin and paeonol was proportional to its concentration respectively and the phenomena were not observed saturable. Except for Paeonol, the K and K of laetrile and paeoniflorin had no significant difference at pH value 5.0~7.4. The K or K of laetrile and paeoniflorin from the extration which contains one kind of active components was significantly less than that of same components from GuizhiFuling Capsule content.

结果:苦杏仁苷、芍药苷、丹皮酚分别在19.2~304.8、18.4~329.5、7.8~125 μg/mL浓度范围内,吸收量与浓度呈线性关系,无高浓度饱和现象,K、K值基本保持不变;除丹皮酚外,在pH 5.0至pH 7.4范围内苦杏仁苷、芍药苷的吸收不受pH影响;3成分在各肠段的K、K均无明显差异;仅含有上述3成分中一种成分的各个提取物的苦杏仁苷、芍药苷的K、K值显著小於由配方药材提取得到的胶囊内容物的相应成分的K、K值。

Results showed that the activity of soil poly-phenol oxidases and acid phosphatase, and soil respiration were suppressed by Starane at 0.5 and 5 mgkg^(-1) dry soil, respectively, during the first several days of experiment, but were slight promoted thereafter. In contrast, treatment with Starane at 50 mgkg^(-1) stimulated at the beginning of experiment but inhibited following that time the activity of soil poly-phenol oxidases and acid phosphatase and soil respiration. Activity of urease was stimulated at the beginning but inhibited in the following days by Starane at 0.5 and 50 mgkg^(-1) dry soil, respectively. However, the pattern of stimulation of urease activity at first several days of experiment followed by reduction to the basil level was observed. With respect to invertase, its activity was constantly depressed in the presence of Starane.

结果表明使它隆在0.5mgkg^(-1)和5mgkg^(-1)质量分数时对土壤多酚氧化酶、酸性磷酸酶和呼吸强度的影响为轻微抑制-激活-恢复稳定的趋势,50mgkg^(-1)质量分数时为轻微激活-抑制-恢复稳定的趋势;使它隆在0.5mgkg^(-1)和50mgkg^(-1)质量分数时对土壤脲酶活性的影响为激活-恢复稳定的趋势,5mgkg^(-1)时则处于抑制-激活的趋势;各质量分数的使它隆浓度对土壤蔗糖酶和土壤全酚均为抑制作用,且质量分数越大抑制越强烈。

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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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