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The structure of octadecyl acrylate were identified by elemental analysis, IR and (superscript 1)H NMR.

产物结构经元素分析，IR和(上标1)H NMR表徵。

We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上，利用传统植化分离手段和现代分离技术，包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱，制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物，其中，2个新化合物和2个己知化合物，并进一步通过现代分析技术IR，ESI-MS，~1H-NMR，~(13C-NMR，HMBC，HMQC，~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是：3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2，6-二甲基-6-O-β-D-吡喃鸡纳糖基-2，7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷，金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷；2个已知化合物结构分别是：金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷，金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。

Because the olefinic hydroxyl groups are linked with olefinic carbon, so it can ionize H〓 ion and present the properties of weak acid, and so the olefinic hydroxyl groups change into the structure of alcoholate in the presence of alkali , but the structure of alcoholate may change into the structure of olefine alcohol again, after the Na〓 ions is removed, or when the pH value of its solution turn into pH. Because the structure of the olefine alcohol is not stable and is easy to isomerizate to become the structure of olefine ketone, so there appear the ca. 1730cm〓 C=O absorption peak in the IR spectra of the products.

明确指出了在C〓、C〓富勒醇中存在烯碳羟基与叔碳羟基等二类羟基，烯碳羟基由于与一个共轭体系相连，从而其羟基可以离解而呈现出弱酸的性质，因而在碱性条件下易形成烯醇钠盐的结构，当除去钠离子后或在酸性溶液中，烯醇钠盐结构转变为烯醇结构，但由于烯醇结构不如烯酮结构稳定，从而形成烯醇结构后，烯醇结构异构化为烯酮结构，因此在其产物的IR谱图上出现1730cm〓附近的C=0吸收信号。

In order that the state equations are standard or normal form, the instatevariables iR and uR in these equations should be expressed as the algebroidal function of exciting source and the state variables.

为使状态方程呈标准形式，方程中的非状态变量iR和uR必须表为激励源和状态量的函数。

The azo derivatives were hydrolyzed on the condition of alky to get end products. The structures of azo derivatives of 4-ASA and intermediate products were characterized by melting point, TLC, MS, FT-IR, 1H-NMR and 13C-NMR spectra properties in details.

本课题探索了一条4-ASA偶氮化合物的多步合成工艺，得到了目标产物三个，对合成的目标产物和中间产物用熔点、薄层色谱法、MS、FT-IR、1H-NMR和13C-NMR进行了详细的表征，确定了它们的结构。

Rosin allyl alcohol ester was analyzed and characterized by TLC, IR and GC-MS.

利用TLC、IR和GC-MS对目标产物进行了分析和表征。

Using mordern physical chemistry techniques (such as XRD、 TG-DTA、 IR、 XPS and 〓Xe-NMR)、 chemical adsorption techniques (NH〓-TPD、 H〓-TPD、 TPO、 TPR etc.) and pulse flow microreaction of n-hexane、 methylcyclopentene and n-hexane containing 0.2ppm thiophene, we studied mainly the following three points:(1). the changes occured during the calcination pretreatment of Pt ammine complex supported on β and L zeolites;(2). the effect of structure and acidity-basicity of zeolite on the dispersion and electron state of Pt particles; and (3). the influence of second metal component on the reactivity of nhexane aromatization and sulphur-resistance of Pt/L zeolite catalyst. Several interesting and valuable results are obtained and summerized as follows

本论文运用各种近代物理表征方法(XRD、BET、TG-DTA、IR、XPS和〓Xe-NMR)、化学吸附技术(NH〓-TPD、H〓-TPD、TPO、TPR等)和正己烷、甲基环戊烷及含噻吩正己烷的脉冲微反等方法，着重研究了(1)载Pt的β和L沸石在分解预处理过程中发生的变化；(2)沸石载体结构及酸碱性对Pt粒子分散及电子状态的影响；(3)第二金属组份对载Pt沸石催化剂上正己烷芳构化及抗硫性能的影响等，得到了某些有意义的结果。

The type 2 diabetes-mellitus (T2DM) subjects had higher HOMR-IR, FINS, FPG, TC, TG, LDL and lower ISI than NC subjects. The 2DM subjects with genotype Thr54 (Thr54 homozygotes and heterozygotes) had higher FPG、FINS、HOMR-IR、TG、LDL(P.01) and lower ISI (P.01) than those with genotype Thr (Ala54 homozygotes). Conclusions: The polymorphy of FABP2 has been identified in the Han nationality in Bengbu.

与NC组比较，T2DM组的胰岛素抵抗指数、胰岛素均明显增高(P.01)，胰岛素敏感指数显著降低(P.01)；甘油三酯、总胆固醇、低密度脂蛋白均明显增高(P.01)，高密度脂蛋白明显降低(P.01)。T2DM组中，FABP2Ala54Ala与Ala54Thr及Thr54Thr基因型患者比较，后两者的空腹胰岛素、HOMA-IR指数、空腹血糖、甘油三酯水平、低密度脂蛋白明显增高(P.01)，而胰岛素敏感指数显著降低(P.01)。

IR existed in both HINS group and IGT group, and they have the same IR level.

HINS和IGT人群存在IR，且程度相当。

A novel microwave closed digestion method for treatment of difficultly dissolved Rh,Ir powders and their alloys,metallurgy material,reduced activating placers was developed.

提出了微波密闭消解难分解Rh、Ir粉及其合金、冶金物料、碎化砂矿的新方法；对比了它们的微波密闭消解和传统分解法的条件；分析了消解后Rh、Ir、Pt、Pd和Au的含量。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。