查询词典 n-heneicosane

A displayer (10) comprises a sensor mechanism (12) for identifying where N different eyes (14) of V viewers (16) are in space, where N is greater than or equal to 2 and is an integer and V is greater than or equal to 1 and is an integer.

一种显示器(10)包括一个传感装置(12)，用于识别V个观察者(16)的N只不同的眼睛(14)在空间中的位置，其中N大于或等于2，是一个整数，V大于或等于1，是一个整数。

for preparing n-boc or n-cbz derivatives of chiral alpha,alpha'-disubstituted pyrrolidines containing olefinic bond and acetylene bond

一种制备含烯键和炔键取代基的手性α，α'-二取代吡咯烷的n-boc或n-cbz衍生物的方法

Subcordiformis in Huanghai Sea near Dalian, it can be able to evolve H〓 photosynthetically. Comparing with Chlamydomonas reinhardtii in our lab, the H〓 productivity is same. By the elementary macro regulation of H〓 production with 2, 5-dibromo-3-methyl-6-isopropyl-p-benzoquinone , N, N'-dicyclohexylcarbodiimide , 3-(3, 4-dichlorophenyl)-1, 1-dimethylurea , sodium dithionate, sulfur-deprivation and cell immobilization, the results show that DCCD, immobilization and sulfur-deprivation has a positive effects on the H〓 production.

利用DCCD（质子泵抑制剂N，N'-dicyclohexylcarbodiimide）、DBMIB（光合电子传递抑制剂2，5-dibromo-3-methyl-6-isopropyl-p-benzoquinone）、DCMU[PSⅡ光合放氧抑制剂3-（3，4-dichlorophenyl）-1，1-dimethylurea]、连二亚硫酸钠、无硫调控及固定化扁藻等手段，对该扁藻产氢进行初步的宏观调控，发现DCCD的加入、扁藻的固定化和无硫调控对产氢均有正效应，其中无硫调控使扁藻产氢时间延长，总产氢量提高了近10倍。

For the reaction between divinyl sulfone and N-ethylethylene-diamine or N-methylpropane-1, 3-diamine , no cross-linking occurred when the feed ratio of A〓 to BB'〓 was 1/1. When the feed ratio of DV to NDA or NPA is 3/2, no cross-linking occurred too in organic solvents such as DMSO, DMF and NMP, while cross-linking does occur in water.

对于二乙烯基砜与N-乙基乙二胺或N-甲基-1，3-丙二胺的反应，当加料配比为1／1时，反应在水和有机溶剂中不会凝胶；当配比为3／2时，反应在有机溶剂中亦不凝胶，而在水中反应时，会经过一种&假凝胶&过程，并最终发生凝胶。

The results showed that MGM had good spherical shape and narrow size distribution,and the particles with diameters ranging from 0.13 mm to 0.28 mm were about 91 wt%.The surface hydrophilicity of Fe3O4 microcrystal was improved by formamide dispersing treatment.The gel particles made by the copolymerization of glycidyl methacrylate and N,N′-methylene bisacrylamide could encapsule Fe3O4 microcrystal to produce colloid cores,and uniform and stable MGM microspheres were formed by the conglomeration of the colloid cores.

结果表明，合成的MGM呈球形，且粒度分布较窄，粒径为0.13～0.28 mm的粒子占91%；甲酰胺分散Fe3O4，微晶表面的亲水性进一步增强，单体甲基丙烯酸缩水甘油酯和 N，N′亚甲基双丙烯酰胺交联共聚生成的胶粒能够包埋Fe3O4微晶形成胶核，胶核聚集形成均匀、稳定的MGM微球。

The enzymolytic products identified were:diisopro-pylaminoethanethiol through the breakdown of P-S bond, and its oxidized product, N, N'-dithiodiethylene-bis ; and diisopropyla-minochloroethane through the breakdown of S-C bond.

VS与电鳐乙酰胆碱酯酶作用的主要产物是： P—S键断裂产物二异丙氨基乙硫醇，该化合物在水溶液中不稳定，可进一步氧化为N，N＇-双二异丙氨基乙基二硫醚；S—C键断裂产物二异丙氨基氯乙烷。

The main contributions are as follows:(1) The decoherence suppression of N level Markovian systems is investigatedby the optimal control in the coherence vector representation. The N level Markoviansystem can be described by the master equation, and possesses a standard bilinear formin the coherence vector representation.

本论文利用密度矩阵相干向量表示研究了退相干效应的抑制和相应的纠缠控制问题，论文主要工作包括：(1)在密度矩阵相干向量表示下，利用最优控制研究N能级Markov系统的退相干抑制问题。N能级Markov系统可以用主方程模型描述，在相干向量表示下具有标准的双线性形式。

It is capable of degrading peptidoglycan, specifically breaking the beta-1,4 glucosidic bonds between N-acetylglucosamine and N-acetylmuramic acid.

我们证明该基因具有降解肽聚糖的功能，即可破坏N-乙酰葡糖氨与N-乙酰胞壁酸之间的beta-1，4糖苷键。

The cannas natural antistaling agent is separated by column separation methods and recrystallization. Fraction Ⅱ-2 is analyzed by GC-MS. Three compounds which are n-Octadecane, n- Heptacosane and Decanoic acid heptyl ester were identified.A new way of litchi preservation is provided in this paper.

本论文还对此美人蕉天然保鲜剂进行了分离研究，先对其乙醇提取物进行柱层析粗分，然后对组分Ⅱ进一步细分，对其中的组分Ⅱ-2进行了GC-MS分析，鉴定出3个物质，它们分别是正十八烷(n-Octadecane)、正二十七烷(n-Heptacosane)和癸酸庚酯。

The invention relates to a synthesis method of N-acetylaminoglucose, which comprises dissolving D-glucosamine hydrochlorate and alcohol at the mass ratio of 2-2.5:100, adjusting the pH value of the solution to 9-10, filtering, taking the filter liquor, mixing and adding acetic anhydride at the 50-60wt% amount of D-glucosamine hydrochlorate, mixing and reacting for 2h, using absolute ethyl alcohol to recrystallizing, filtering and recrystallizing via water, to obtain rod-shape food grade N-acetylaminoglucose.

本发明涉及一种N-乙酰氨基葡萄糖的合成方法。该方法的具体步骤为：将D-葡萄糖胺盐酸盐和乙醇按2～2.5∶100的质量比溶于水中，调节该溶液的pH值为9～10；过滤，取滤液，搅拌下加入乙酸酐，其加入量为原料D-葡萄糖胺盐酸盐量的50～60wt％；搅拌反应2小时后，用无水乙醇进行重结晶；过滤，晶体再用水重结晶，得棒状食品级N-乙酰氨基葡萄糖。

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。