类化

A simple and efficient method for the synthesis of N3-functionalized 3,4-dihydropyrimidinones by aza-Michael addition reactions of 3,4-dihydropyrimidinones toα,β-ethylenic compounds catalyzed by KF/Al_2O_3 is described.

研究结果表明：DHPMs类化合物可与α，β-不饱和羰基化合物发生Michael加成反应，产物只有N3位功能化的DHPMs，而没有N1位的产物。

It has good fibre flexibility which can effectively protect the deciduous wood,grass and other short fibered pulp material's fibre length.

对纤维切断少，分丝帚化效果显著，而且纤维柔韧性好，可有效保护阔叶木和草类等短纤维浆料的纤维长度。

The fibre cutting is few and the effect of dividing into silk broom is prominent.It has good fibre flexibility which can effectively protect the deciduous wood,grass and other short fibered pulp material's fibre length.

对纤维切断少，分丝帚化效果显著，而且纤维柔韧性好，可有效保护阔叶木和草类等短纤维浆料的纤维长度。

Finally, some limitations of Krylov subspace methods and some potential improvements to this type of methods are furtherly presented.

计算结果表明本文的预处理GMRES方法优于目前使用较多的预处理正交极小化ORTHMIN方法，最后还讨论了投影类方法的局限和今后的可能发展方向。

This study aims at tick vitellogenesis and its mechanism. Six hybridoma cell lines secreting monoclonal antibody against vitellin of the hard tick Haemaphysalis longicornis were produced by fusing myeloma cells (SP2/0) with spleen cells, both from BALB/c mouse which were immunized with the Vn. They were named as 1B5, 2A7, 2B8, 2F2, 3A1 and 3G1, respectively. Further identification indicated that 1B5, 2B8 and 2F2 were of the isotype IgGA, 2A7 was of the isotype IgG1, while 3A1 and 3G1 were of the isotype IgG2a.

为研究蜱类的卵黄发生及其机理，用长角血蜱Haemaphysalis longicornis卵黄蛋白(vitellin，Vn)免疫BALB/c小鼠，取免疫鼠脾细胞与骨髓瘤细胞SP2/0进行融合，经3次克隆化筛选，获得6株能稳定分泌抗Vn的单克隆抗体，即1B5，2A7，2B8，2F2，3A1和3G1.1B5，2B8和2F2亚型为IgGA；2A7亚型为IgG1；3A1和3G1亚型为IgG2a.6株McAb均具有高度特异性，效价在1：105以上。

This thesis studied the alkylationperformances of supported heteropoly acid and zeolite catalysts as well as correlativeprocesses, which is significant for theory and practical application.

本论文研究杂多酸及分子筛两类固体酸催化剂的烷基化性能及其相关工艺，具有实际应用和理论意义。

These cancer cells might histogenetically be related to the transitional or metaplastic epithelium of prostate according to morphological analysis,(2) Mucinous adenocarcinoma, Xanthomatous carcinoma, ductal carcinoma, medullary carcinoma, endometrioid carcinoma, papillary carcinoma and signet-ring cell carcinoma were positive for PSA and 35βH11, these carcinomas might histogenetically be related to prostatic secretory epithelium,(3) Prostatic carcinoid showed positive to PSA, 35βH11, NSE and CgA, corresponded with endocrine cell originator,(4) Small cell carcinoma were negative for PSA, 35βH11, NSE and CgA, whether or not it originates from endocrine cells, storage cells or basal cell of prostate had yet to be proved,(5) 34βE12 marking was negative in cancerous areas of 27 cases, and the basal cells were absent in PPTC.

从形态分析，这两种癌可能同源于移行上皮或化生上皮：（2）粘液腺癌、黄色瘤样癌、导管癌、髓样癌、宫内膜样癌、乳头状癌及印戒细胞癌均显PSA及35βH11阳性，提示这几种癌可能来源于分泌上皮，（3）类癌对PSA、35βH11、NSE及CgA均显阳性，符合内分泌细胞来源，（4）小细胞癌无PSA、NSE及CgA表达，对c-erbB-2及35βH11显阳性，是否来源于前列腺内分泌细胞、储备细胞或基细胞有待证实，（5）27例癌区均无34βE12表达，提示PPTC中基细胞缺失。

Here, Yuan Shun is a different type of city-dweller. His sensitivity to the accumulated urban experience, his reflections, his musing in humoristic ways are all worth our attention.

在这里，袁顺是一个城市的另类，他的敏感和积淀的独特的城市经验，他的反思、游戏化的幽默方式等等都是值得关注的。

The palladium-catalyzed heteroannulations of C_(60) with a variety ofο-iodoanilines afforded the first synthesis of C_(60)-fused indoline derivatives.

通过在Pd的催化下，富勒烯和邻碘苯胺类化合物的杂环化反应，首次合成了一系列富勒烯并吲哚啉环衍生物。

In searching for novel and high active fungicides with pyridyl moiety, with Dimethomorph as a model compound and isonicotinic acid as the main starting material, twenty-seven title compounds were designed and synthesized through chlorination, Friedel-Crafts acylation, Wittig-Horner reaction and other steps. All the target structures were confirmed via 1H NMR and elementary analysis.

为了寻找具有高活性的含吡啶杂环杀菌剂，以烯酸吗啉为模板化合物，以异烟酸为起始原料，通过卤代反应、Friedel-Crafts酰基化反应、Wittig-Homer反应等，将吡啶－4-基或2-氯吡啶－4-基引入到模板结构中，设计合成了27个4-［3-（吡啶－4-基）－3-取代苯基丙烯酰］吗啉类化合物，其结构通过1H NMR和元素分析确证。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。