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Based on the problem of various types of catalyst and according to the features of carbonylation catalysts reactions, our team has been designed a series of new metal complexes of benimidazoles, which can be used for carbonylation catalyst of industry. Seven new benzimidazole derivatives were prepared by the o-phenylenediamine、oxalic acid、glycolic acid、monomethyl monopotassium malonate、ethyl cyanoacetate、succinic anhydride. The structures of them were confirmed by IR、Elemental analsis. The crystal structures of d and e were determined by X-ray single crystal diffraction of Germanic Bruker Smart APEX II CCD. The catalysis of them was tested by carbonylation reactions.
本文设计以邻苯二胺和草酸、羟基乙酸、丙二酸单甲酯、氰基乙酸乙酯、丁二酸单甲酯为原料采用PPA催化和无机酸催化法,合成了4种苯并咪唑-2-羧酸衍生物并进行了表征;培养了2个化合物d、e的晶体并测定和讨论了晶体结构;制备了3种未见报道的苯并咪唑金属配合物,对配合物在羰基化法制醋酐-醋酸反应的催化作用进行了初步试验。
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By simulation, the optimal operation conditions were gained in every step in the separation process, and polymerization-class isoprene was gained by the process. And to improve the economy of process, the process was studied by simulation, 99% cyclopentene and 1, 3-pentadiene were gained by continuous separation process. All were the base of the process industrialization.
通过模拟研究,得到分离各步的最佳塔高,进料位置和各种操作条件;并进行了全流程的模拟优化得到聚合级的异戊二烯的各种工艺参数;通过模拟研究对分离工艺进一步深化,得到了从C5中分离出环戊烯和间戊二烯的优化工艺条件,对工艺经济性进一步优化,给过程工业化提供了依据。
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It has been attacked as a mixture of "narcissism" and "nihilism" by former United States vice-president Al Gore; it has been defined as the triumph of the spectacle by French Marxist theorist Guy Debord; it has been lamented as the abolition of reality by simulacra in the works of philosopher Jean Baudrillard; and it has been defended as the liberation of communication from hegemonic narratives by the philosopher Jean-Francois Lyotard; and so on and so on.
美国前副总统Al Gore讥之为「自恋」与「虚无」的结合;法国马克思理论家Guy Debord则赞扬它代表了「景象」的巨大成就;Jean Baudrillard的哲学作品中则感叹后现代主义的「拟象」消除了真实;哲学家Jean-Francois Lyortard则为它辩护,认为后现代主义解构霸权论述,是一种沟通的解放。
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"The syntactic relationship of a noun, a pronoun or a determiner to the other words of a sentence, indicated by declensional endings, by the position of the words within the sentence, by prepositions , or by postpositions."
一个名词、代词或一个限定词与一个句子中其它词的句法关系,通过词尾变化、这些词在句子中的位置、介词或者后置词表示出来。
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The syntactic relationship of a noun, a pronoun or a determiner to the other words of a sentence, indicated by declensional endings, by the position of the words within the sentence, by prepositions, or by postpositions.
格一个名词、代词或一个限定词与一个句子中其它词的句法关系,通过词尾变化、这些词在句子中的位置、介词或者后置词表示出来
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The syntactic relationship of a noun, a pronoun or a determiner to the other words of a sentence, indicated by declensional endings, by the position of the words within the sentence, by prepositions, or by postpositions.
格一个名词、代词或一个限定词与一个句子中其它词的句法关系,通过词尾变化、这些词在句子中的位置、介词或者后置词表示出来注意,注意力集中
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We found that the release of ROS in rat astrocytes was significantly increased by the stimulation of calcium ionophore or opsonized zymosan, which are known to trigger respiration burst in phagocytes by NADPH oxidase pathway. Further study indicated that diphenylene iodonium or apocynin , two inhibitors of NADPH oxidase, significantly suppressed ROS release caused by calcium ionophore or opsonized zvmosan.
我们发现在用吞噬细胞呼吸爆发刺激剂钙离子载体或酵母多糖刺激星形神经胶质细胞时,细胞O〓和H〓O〓产量均明显增加,而NADPH氧化酶的抑制剂二联苯碘(diphenylene iodonium,DPI)或夹竹桃麻素(apocynin,APO)均可以明显地降低刺激剂引起的细胞O〓和H〓O〓产量增加。
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Cells were seeded by 2×104/ml in 96 well cell culture cluster. Afer cultured by the extracts of dipsacus asperoids, the function of osteoblastic proliferation was detected by MTT method.
将传代细胞制成密度为2×10~4/ml的细胞悬液,接种于96孔培养板中,细胞贴壁后用续断甙培养液培养,用MTT法测定成骨细胞的增殖能力。
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A highly ordered copper phthalocyanine-3,4',4",4"'-tetrasulfonic acid, tetrasodium salt/4,4'-dipyridyl dihydrochloride nanotube array was successfully fabricated by the layer-by-layer self-assembly technique using micropore anodic aluminum oxide as templates. The assembly process of the nanotube array was investigated by UV-Vis spectrometry, XRD and FT-IR, and the morphology of the nanotubes was analyzed by scanning electron microscopy and transmission electron microscopy, respectively.
在阳极多孔氧化铝模板中利用层层自组装技术制备出了高度有序的聚电解质磺化酞菁铜/4,4′-联吡啶盐酸盐纳米管,并对其组装过程用UV-Vis, XRD和FT-IR进行了分析,纳米管的微观形貌通过SEM和TEM进行表征。
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Striping in the images which acquired by the linear array ccd blocks is mainly caused by disaccordance of each ccds . This problem can be solved by relative detector calibration.
卫星影像条纹噪声主要来源于ccd相机各个探元响应度的不一致,通过相对辐射校正可以解决这个问题。
- 相关中文对照歌词
- The Hunter Gets Captured By The Game
- By The Light Of The Silvery Moon
- Flowers By The Side Of The Road
- The Train Runs Over The Camel But Is Derailed By The Gnat
- If You Live By The Sword, You Die By The Sword
- Down By The Side Of The Road
- Got The Bull By The Horns
- The Hunter Gets Captured By The Game
- In The Evening By The Moonlight
- A Woman A Man Walked By / The Crow Knows Where All The Little Children Go
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。