酰亚胺

A polyimide layer overlies the IMD layer.

聚亚酰胺层位于内金属介电层上。

A novel guar gum-g-poly superabsorbent was synthesized by the solution copolymerization between natural guar gum and acrylic acid using ammonium persulfate as an initiator and N,N′-methylenebisacrylamide as a crosslinker.

以天然瓜尔胶和丙烯酸为原料，过硫酸铵为引发剂，N，N′-亚甲基双丙烯酰胺为交联剂，采用水溶液聚合法制备了瓜尔胶接枝聚丙烯酸高吸水性树脂。

The objectives of the present study was to examine sequence variation in a portion of the mitochondrial NADH dehydrogenase subunit 1 gene (pnad1) within and among Toxocara canis, T. cati, T. malaysiensis, T. vitulorum and Toxascaris leonina, and to study their systematics and population genetics.

本研究旨在对弓首属犬弓首蛔虫、猫弓首蛔虫、马来西亚弓首蛔虫、牛弓首蛔虫和狮弓属狮弓蛔虫线粒体DNA中烟酰胺脱氢酶亚基I（nad1）基因部分序列（pnad1）进行比较研究，分析它们之间的序列差异和种群遗传关系。

Treatment of pterin (2-amino-4-hydroxy-pteridine) derivatives with N,N-dimethylformamide dimethylacetal [1,(CH 3) 2NCH(OCH 3) 2] usually gave corresponding N 2-(N,N-dimethylaminomethylene)- pterin derivatives in polar solvents.

用N ，N 二甲基甲酰胺缩二甲醇 [(CH3 ) 2 NCH(OCH3 ) 2 ，1]和蝶呤(2 氨基 4 羟基蝶啶)衍生物在极性有机溶剂中反应一般得到脒化产物：N2 (N ，N 二甲基氨基亚甲基)-蝶呤衍生物。

The structures were identified by IR, UV,〓 NMR and element analyses. 2. Free radical 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxyl as catalyst, the phase transfer catalyzed method of oxidation eighteen semicarbazides to N-Aryl-2-Phenyl diazenecarboxamide with a solution of potassium ferricyanide in 2N aqueous sodium hydroxide and dichloromethane is described for the first time.

利用2，2，6，6-四甲基-4-羟基-1-哌啶氮氧自由基为相转移催化剂，在饱和铁氰化钾的2N氢氧化钠溶液与二氯甲烷的两相反应液中，催化氧化十八个取代氨基脲得到十八个相应的新型偶氮化合物N，2-二芳基二氮亚烯甲酰胺，均获得了较高的产率。

High absorption and retentions clinoptilolite /Starch/ PAANa composite was synthesized by water-solution copolymerization with clinoptilolite and acrylic acid as principal raw materials,with N N-methylene-bis-acrylamideand as crosslinker, and with potassium persulphate as initiator .

以丙烯酸、斜发沸石为主要原料，以N，N'-亚甲基双丙烯酰胺为交联剂、过硫酸钾为引发剂，采用水溶液聚合法合成了斜发沸石/淀粉/聚丙烯酸高吸水保水性复合材料。

An intramolecular α-addition of hydroxy or amine-substituted electron-deficient alkyns catalyzed by phosphines was developed. An intramolecular β-addition of hydroxysubstituted 2-alkynoates trigged by the tributylphosphine was also achieved.

在上面的研究中发现低活性的亚甲基取代的环内酰胺的[3+2]环加成反应也能顺利进行，因此我们研究并实现了β-位取代的贫电子烯烃的环加成反应，进一步拓展了叔膦催化的[3+2]环加成反应。

The compositions of high molecular weight glutenin subunits in 106 synthetic wheats were analyzed by using sodium dodecyl sulphate polyacrylamide gel electrophoresis.

利用十二烷基磺酸钠－聚丙烯酰胺凝胶电泳技术对106份人工合成小麦(2n=6x=42， AABBDD)的高分子量谷蛋白亚基组成进行了分析。

Employing CuI(5 mol%), N,N-dimethylglycine hydrochloride(10 mol%) and K_2CO_3(2 equiv.) in refluxing THF as the optimized reaction conditions,the four-membered 4-alkylidene-2-azatidinones could be efficiently synthesized.

当以3-溴-3-N-苯基-丁烯酰胺为底物，在5 mol%CuI为催化剂，10 mol%N，N-二甲基甘氨酸盐酸盐为配体，2当量K_2CO_3作碱，THF回流的反应条件下，可以高效的合成2-亚甲基-4-氮杂环丁酮类化合物。

Other measured markers, including stress hormones(cortisol,adrenocorticotropic hormone, growth hormone) in serum,lymphocyte subsets in peripheral circulation,cytokines(interleukin-1β,tumor necrosis factorαand interleukin-10) and glutamine in serum,seemed to be not effective to estimate the role of GI of the sports drinks in current study.

6本研究的其它测试指标，包括血清应激激素(皮质醇、促肾上腺皮质激素和生长激素)、外周血循环中淋巴细胞亚群(T细胞、B细胞和自然杀伤细胞)、血清细胞因子(白细胞介素-1β、肿瘤坏死因子α和白细胞介素-10)和谷氨酰胺似乎对评价运动饮料的GI的作用没有效果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。