化学

The water lubricant mechanism of acrylonitrile butadiene rubber beating was analyzed and studied systematically.

应用力化学的观点和原理对丁腈橡胶轴承的磨损机理进行了研究，得出了橡胶轴承磨损过程中表面所发生的主要化学过程。

The blast power of TBE was higher due to the enhancement of afterburning to shock wave. The percentage of total energy released in explosive reaction of TBE was about 42% as analysis, which indicated that it had potential to be improved. A modified thermobaric explosive containing chemically active material was studied by experiment.

对含化学活性材料温压药剂M-TBE的实验表明：其冲击波曲线有两个规律的正压作用区；二次冲击波在火球区外形成，火球区内是后续燃烧反应对爆炸波增强而引起的压缩波积累压力平台；二次冲击波峰值压力不小于第一个冲击波的40%，二次冲量占总冲量的12.5%~43.7%，其对爆炸/冲击波威力的贡献不可忽略；化学活性材料对温压药剂的后续燃烧反应有增强作用，有利于二次冲击波的形成和传播。

Progress on Research of chemical constituents of Ailanthus, especially alkaloids and triterpenes is reviewed.

综述了臭椿属植物化学成分的研究进展，详细总结了主要化学成分生物碱及2000年至今所发现的三萜类化合物的研究进展。

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。

A production method as defined in claim 1 or 2, wherein the alcohol is one or more alcohol selected from the group consisting of alkyl alcohols containing 1 to 10 carbon atoms, wherein the amount of alcohol added to the waste edible oil is equal to a stoichiometric quantity with respect to amount of glyceride in the waste edible oil or larger than stoichiometric quantity by 10%.

生产方法所界定的索赔1或2个，其中，酒精是一个或多个选定的酒精从小组烷基醇含有1至10个碳原子，其中，金额酒精添加到废油脂是平等的一个化学计量数量方面的金额甘油酯，在废油脂或大于化学计量的数量由10 ％。

According to the properties of bio-oil, converting carboxyl acid and aldehyde through esterification and aldolization have great potential.

根据生物油中化学组成的特点，将极性基团转化为稳定的非极性基团的化学改性方法是生物油改性具有潜力的发展方向。

MTT method was used to detect the proliferation of the cells. Cell alkaline phosphatase activity and expression of collagen type I were assessed.

另以组织化学和免疫组织化学方法检测传代培养的SD大鼠骨髓基质成骨细胞在PMMA驻极体表面的增殖和分化情况。

Safflor Yellow, extracted from Safflor, with proved pharmacological effect that can expand coronary artery, lower blood pressure, resist thrombus, endure anoxemia and restrain immunity, will have a good developing and applying future. Since 1970s, more than 200 kinds of components such as flavone, lignocelluloses and alkine, have been extracted from Safflor.

红花黄色素(Safflor Yellow，SY)是从红花中提取的有效成分，具有扩冠、降压、抗血栓、耐缺氧、免疫抑制等多种药理学功效，有良好的开发和应用前景。70年代以来对红花的化学成分进行了广泛的研究，已分离出了二百多种化学成分，其中主要有黄酮类、木脂素类、多炔类等。

Larvae survived and grew very well on foliage of Catharanthus roseus L.; but all larvae died when fed foliage of Allamanda cathartica L.; Chemical analysis also revealed that foliar nitrogen content differed significantly among plant species.

化学分析也发现植物化学物质的含量在这三种植物之间相差很显著，尤其是含氮量，在三种树叶上的含量都不一样。

All kinds of the detected and analyzed has proved that the analyzer has high accuracy with the error within the allowable range compared with the result of chemical analysis method , what's more, it is so quick that it only takes just 15 min.

多种检测试验及实际分析应用证明，其检测准确度高，与化学分析法测试结果的误差值均在化学法的允许差之内；且检测速度快，从样品处理到检测结果仅需15min。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。