异位

The content of five free-anthraquinones (aloemodin, rhein, emodin, chrysophanol, physcion) in Alc95% active part were simultaneously determined by HPLC method.

其中7，3'-二羟基-5'-甲氧基异黄酮是自然界中罕见的B环为间位二取代的异黄酮类化合物，为新化合物。

Water,butylene glycol,glycerin,glyceryl polymethacrylate,triethanolamine,carbomer,ppg-26-bueth-26,chondrus crispus,peg-40 hydrogenated castor oil,phenoxyethanol,imidazolidinyl urea,propylene glycol,benzophenone-4,retinyl palmitate,citrus aurantiudulcisoil,phospholipids,methylparaben,tocopheryl acetate,c12-23 alkyl lactate,disodium EDTA,centella asiatica extract,iris germanica root extract,pentadecalactone,aloe barbadensis leaf juice,mimosa tenuiflora bark extract,sodium hyaluronate,menthol,biosaccharide gum-1,citrus aurantium amara oil,propylparaben,methylchloroisothiazolinone,sodium benzoate,potassium sorbate,citric acid,calcium sorbate,methylisothiazolinone,butylparaben,ethylparaben,yellow 5(CI 19140),limonene,linalool

水，丁二醇，甘油，甘油聚甲基丙烯酸酯，三乙醇胺，卡波姆，PPG-26-丁醇聚醚-26，鹿角菜胶，PEG-40 氢化蓖麻油，苯氧乙醇，尿素醛，丙二醇，二苯酮-4，维他命A酯，甜橙油，磷脂质，羟苯甲酯，醋酸盐维他命E，C12-13 烷醇乳酸酯，乙二胺四乙基二钠，雷公根萃取，鸢尾花根萃取，环十五内酯，吉拉索芦荟叶汁，含羞草萃取，透明质酸钠，薄荷脑，多醣物质，苦橙油，羟苯丙酯，甲基氯异塞唑晽酮，苯甲酸钠，山梨酸钾，柠檬酸，山梨酸钙，甲基异噻唑啉酮，羟苯丁酯，羟苯乙酯，柠檬黄，柠檬精油，沈香醇水：几乎所有护肤品成分第一位都是水。丁二醇：保湿剂及溶剂，质地温和

Title compounds were synthesized by condensation of 3 benzylidene isochroman 4 one with 5 substituted 4 amino 3 mercap to 4 1,2,4 triazoles.

通过异色满酮－4的3－位苯亚甲基取代衍生物与4－氨基－3－巯基－1，2，4－三唑的缩合反应得异色满并［3，4－f］硫氮杂奥。

The modified QCM sensors were used to recognize the butylamine isomers in gas. The results showed that the QCM coated with both compounds had preferential affinity to n -butylamine, then i -butylamine, t -butylamine in the range of low concentrations, indicating that in the recognition process, the steric hindrance effect played an important role when forming complex with guest molecules.

修饰的QCM传感器用于识别气相中不同的丁胺异构体，结果发现，在小浓度范围之内上述两种化合物修饰的QCM均优先吸附正丁胺，之后依次为异丁胺和叔丁胺，表明在形成主客体化合物的识别过程中，空间位阻效应是一个重要因素；当分析物浓度增大时，丁胺的极性和磁性成为分子识别的主要因素。

The results showed that the shape selective effect of the faujasite is obvious, and the thermodynamic balance exists between 2,6 DTBN and 2,7 DTBN.

结果表明，八面沸石对该反应过程有较好的择形催化作用，两种异构化产物(2 ，6 二叔丁基萘和 2 ，7 二叔丁基萘)之间存在着热力学平衡，即两种异构化产物可在酸性中心位上相互转化。

The hybrid composite PW11Co/PAMAM was characterized by FT-IR, UV-Vis diffuse reflectance spectra, XPS, XRD and TG/DTA, indicating that the PW11Co was chemically anchored to PAMAM. The morphologies of the title composite were characterized by scanning electron microscopy and transmission electron microscopy. The catalytic activity was evaluated by oxidation of isobutyraldehyde to isobutyric acid in MeCN under mild conditions (20 ℃, ambient pressure), showing that the title compound is a more effective and recoverable catalyst than corresponding PW11Co.

通过FT-IR、DR-UV-Vis、XRD、TEM、SEM、TG/DTA等手段对其进行了表征，并考察了其对异丁醛转化异丁酸的催化活性，实验结果表明，多金属氧酸盐通过配位键与聚酰胺-胺作用形成的无机-有机复合物可望成为一种催化活性高且易于分离和重复使用的多相催化剂。

The analytical results have shown that p ro ducts mainly consisted of some monosubstituted, disubstituted and a few trisub stituted naphthalenes. Except the low activity of HZSM-5 catalyst, all other z eolite catalysts have higher activity. HY and Hβ catalytic activities were the highest, and their naphthalene conversions attained to 79.12 and 55.79 percent respectively, but their selectivities for 2-isopropylnaphthalene, 2,6-diisopropylnaphthalene(2,6-DIPN) and 2,7-diisopropylnaphthalene ( 2,7-DIPN) were too low. ZM catalysts had good activity and much better selecti vity, especially for ZM4-3, of which its 2,6-DIPN/2,7-DIPN ratio was 2.97. Th er efore, some zeolite catalysts are recommended for shape selective isopropylat ion of coal tar naphthalene.

研究结果表明，煤焦油萘异丙基化产物主要由一取代萘、二取代萘以及少量三取代萘组成；除HZSM-5活性较低以外，其它催化剂均有较高的反应活性，其中HY和Hβ反应活性最高，萘转化率分别达75.15％和55.96％，但β位产物的选择性较差；ZM类催化剂既有一定的活性，又有较高的β选择性，是萘择形异丙基化反应理想的备选催化剂。

Furthermore, heterochromatinization should be an earlier event than pericentric inversion.

另外，从刺鳅的X、Y上结构异染色质的相似分布来看，在性染色体进化过程中，异染色质化发生的时间应该早于臂间倒位。

Compared the similarity and difference of distribution of homologous fragments on X and Y, we suggested that the sex chromosomes of spiny eel have evolved from a pair of homologous ancestral chromosomes, and during the evolution, a pericentric inversion might have occurred on the original Y chromosome, and subsequently terminal regional duplication might have followed, eventually resulting in the differentiation and formation of X and Y chromosomes, then the recombinants between sex chromosomes were repressed, so the sex chromosomes could be inherited steadily.

根据X、Y染色体上同源片段的分布的相似和相异，我们对刺鳅性染色体的分化历程进行了推测，即：刺鳅的性染色体起源于一对原始的同源染色体，通过原Y染色体上的一个明显的臂间倒位，以及染色体末端的异染色质成分的扩增，导致原始Y染色体与X染色体在染色体结构上的分化，从而抑制了X、Y性染色体之间的遗传物质的重组交换，为性染色体的稳定遗传奠定了基础。

As for the ester exchange reaction on phosphorus, it was found that N-phosphoryl histidine the fastest one among all of the N-phosphoryl aminoacids. The results studied by MNDO method indicate that due to theparticipation of imidazole group, the formation of hexa-coordinatephosphorus intermediate made the iso-propoxyl which is opposite toimidazole group more active than the other ones and much easier to leave.When iso-propoxyl left, a new penta-coordinate phosphorus intermediate wasformed, and it is sterically favorable to be attacked by an alcohol from theopposite direction of imidazole.

对于磷上酯交换反应，实验中发现N-磷酰组氨酸反应速度明显高于其它N-磷酰氨基酸，理论研究表明，侧键咪唑基参与下六配位磷中间体形成后，位于咪唑基对面的异丙氧基反应活性大大提高，即从咪唑基的对面位置发生异丙氧基的离去和另一分子醇的进攻，在能量上和空间上都是有利的。N-磷酰丝氨酸的磷上酯交换反应有着类似的特点。

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。

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。