酸基

A three-level energy model is forwarded on the nonlinear absorption properties o f a two-photon absorption dye trans-4-[4′-(N- hydroxyethyl- N-eth ylamino)styryl]-N-methylpyridinium p-toluene sulfonate.

提出了有机染料反式 4 [4′(N 羟乙基 N 乙基胺基)苯乙烯基 ] N 甲基吡啶对甲苯磺酸盐非线性吸收的三态模型。

Ammonium tristyrylphenol polyoxyethylene ether sulfate was synthesized from tristyrylphenol polyoxyethy-lene ether and sulfamic acid using urea as catalyst.

以三苯乙烯基苯酚聚氧乙烯醚和氨基磺酸为原料，合成了三苯乙烯基苯酚聚氧乙烯醚硫酸酯铵盐。

Preparation of Nanosolid Superacid and Synthesis of 2,4,N-Trinitroanilinoacetic Acid Directly

篇名 纳米固体酸的制备及2，4，N-三硝基苯胺基乙酸的合成

CK2 is known to be a tetrameric serine/threonine-specific kinase composed of two large catalytic subunits ?

摘 要：蛋白激酶CK2是一个丝氨酸/苏氨酸特异性的激酶，通常以异源四聚体形式存在，由两个催化亚基（CK2α和CK2α′）和两个调节亚基CK2β组成。

CK2 is known to be a tetrameric serine/threonine-specific kinase composed of two large catalytic subunits (a and/or a') and two small β regulatory subunits.

蛋白激酶CK2是一个丝氨酸／苏氨酸特异性的激酶，通常以异源四聚体形式存在，由两个催化亚基（CK2α和CK2α'）和两个调节亚基CK2β组成。

Phenothiazines were also oxidized byiodine and 2, 2, 6, 6- tetramethyl - 4 - acetyloxypiperidineoxoammonium hexachloroantimonate to radical cations in the cavityof β-cyclodextrins in aqueous solution.

以吩噻嗪衍生物为底物，2，2，6，6-四甲基-4-乙酰氧基哌啶氧铵六氯锑酸盐、碘为氧化剂，二者在水相中β-环糊精腔内发生了单电子转移反应，产生了吩噻嗪衍生物正离子自由基。

Twelve new Schiff bases of 5-amino-1H-1,2,3,4-tetrazolyl were synthesized. These Schiff bases were further converted into α-(5- tetrazolyl)-aminoalkyl phosphonates.

合成了12个新的5—氨基—1H—1，2，3，4—四唑的Schiff碱，而后与亚磷酸二乙酯反应，合成出了12个新的含四唑基的α-氨基烃基膦酸酯，通过IR，^1H NMR，^31P NMR和元素分析证实了它们的结构。

Using tetrabutyl titanate and methyl methacrylateor 2-Hydroxyethylmethacrylate (HEMA as materials, methacryloxylpropyl trimethoxy siliane as coupling agent, HCl as catalyst, Poly-titania（PMMA－TiO2） nanocomposites and Poly-titania（PMMA－TiO2） nanocomposites were synthesized by sol-gel process.

以盐酸作为催化剂，将钛酸四丁酯水解制备二氧化钛（TiO2）溶胶；随后将所制备溶胶与甲基丙烯酸甲酯、硅烷偶联剂（γ－甲基丙烯酰氧丙基三甲氧基硅烷）相混合，以过氧化苯甲酰作为引发剂，经过聚合、缩合和溶胶-凝胶过程，制备了均匀透明的PMMA-TiO2纳米复合材料和PHEMA－TiO2纳米复合材料。

Results The mixing, loading and storing processes of the construction, might generate lots of occupational hazards, including toluene, dimethylbenzene, trimethylbenzene, isopropanol, butyl alcohol, propanol, methyl methacrylate, butyl acetate, methyl isobutyl ketone, methyl ethyl ketone, acetic ether, nitro-cotton, n-hexane, n-heptane, carbinol, ethanol, ethyl propionate, diisobutyl ketone, glycol ether, isoamyl acetate, 2,4-toluene diisocyanate, isophorone, noise, power frequency electric fields.

结果 该项目在混兑生产和装卸、仓储过程中，可能产生的职业病危害因素主要有甲苯、二甲苯、三甲苯、异丙醇、丁醇、丙醇、甲基丙烯酸甲酯、乙酸丁酯、甲基异丁基甲酮、丁酮、乙酸乙酯、硝化棉、正己烷、正庚烷、甲醇、乙醇、乙酸丙酯、二异丁基甲酮、乙二醇乙醚、乙酸异戊酯、2，4甲苯二异氰酸酯、异佛尔酮、噪声、工频电场。

Triarylcarbinols such as triphenylcarbinol and certain diarylcarbinols give intensely colored salts when treated with acid in suitable media.

三芳基甲醇和某些二芳基甲醇。在适当的介质中。用酸处理时会产生颜色很浓的盐。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。