目的探讨实验性脑缺血嗜中性粒细胞(NC)的浸润规律及甲烯土霉素(MC)对其影响。
Objective To research on the neutrophil cell (nc) infiltration in the ischemic brain and the influences by methacycline (MC).
采用甲硫醇、呋喃硫醇、吡嗪、反-2,4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料,可以调配出香气逼真的炖牛肉香精。
Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor.
介绍2,3-二氯丁二烯一甲基丙烯酸甲酯共聚物的合成,以及以该共聚物为主体材料的橡胶同金属热硫化粘结的胶粘剂。
The synthesis of 2,3- DCB /MMA Copolymer and preparation of the adhesive for bonding rubber to metal with the copolymer above as the main material are introduced.
冬凌草甲素是从冬凌草等植物叶子中提取出的一种贝壳杉烯二萜类化合物,具有好的抗肿瘤活性。
Oridonin anent-kaurene diterpenoid compound mainly isolated from the leaves of R. rubescen. Oridonin has been proved to possess good antitumor activity .
本文研究了在高压汞灯照射下,二苯甲酮和3,4 -聚异戊二烯间的能量传递机理。
This paper studied the energy transmission mechanism between benzophenone and 3, 4-polyisoprene which were irradiated by high pressure Hg lamp.
结论短期应用白三烯受体拮抗剂可改善哮喘患者乙酰甲胆碱支气管激发试验剂量-反应曲线参数。
Conclusion Short term use of Zafirlucast in asthmatic patients could improve the parameters of dose response curve obtained after the methacholine challenge test.
它们是乙酸、苯甲醛、正葵酸、14-甲基十五烷酸甲酯、丙三醇、苯甲酸、6 ,9-十八碳二烯酸甲酯、角鲨烷、硬脂酸和二十烷基油酸酯。
They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.
首先以茄尼醇合成全反式侧链四十碳十烯-1-醇,再和2,3-二甲氧基-5-甲基-1,4-苯醌的还原产物在无水氯化锌存在下缩合。
All - E long chain part was synthesized from solanesol, then condensed with the reductive product of 2,3 - dimethoxy - 5 - methyl -1,4- benzoquinone in the presence of dry ZnCl2.
该染料甲川链上的碳原子与氨基的氮原子相连,而该氮原子又与染料的甲川链形成烯胺。
The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye .
计算表明,硅炔与氢分子加成反应可生成稳定的甲硅烷基硅烯。
The computation indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.
三唑酮、多效唑、烯唑醇、异恶草酮、甲辛宝、农药乳化剂、油田化学品、表面活性剂、纺织染整助剂。
Triadimefon, paclobutrazol, diniconazole, yect, JXB, pesticide emulsifier, oil field chemicals, surface active agent, dyeing and finishing auxiliaries for textile.
采用均苯四甲酸酐(PMDA)和过氧化二苯甲酰(BPO)双固化剂固化聚丁二烯环氧树脂(ELPB),制备了ELPB/PMDA/BPO耐高温胶粘剂。
The high temperature resistant adhesive was prepared based on liquid polybutadiene epoxy resin(ELPB) cured by pyromellitic dianhydride(PMDA) and benzoyl peroxide(BPO).
用羧甲基化的以N,N’-甲叉双丙烯酰胺交联的烯丙基葡聚糖(简称CM-CADB)凝胶酶载体用树脂为新型载体,将谷氨酸脱羧酶固定在CM-CADB树脂上。
The immobilized L-glutamic decarboxylase on the CM-CADB (carboxymethyl-copolymer of allyl dextran and N, N'-methylene-bisacrylamide) ion exchange resin has been studied in this paper.
为研究硫醇烯光固化组成物的反应机理,选用安息香双甲醚、安息香乙醚、安息香正丁醚、二苯甲酮和噻吨酮为光敏剂,用红外光谱法研究了硫醇烯的光化学反应动力学。
The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.
通过甲酰基异长叶烯与酮的缩合反应合成出六种具有香气的新化合物。
Six types fragrant new compounds were synthesized by the condensation reactions of formylisolongifolene with ketones.
齐墩果烷- 28 -羧酸甲酯- 2,11,13(18)-三烯在制备治疗皮肤疾病药物中的应用。
Application of oleanane-28-carboxylic methyl ether-2, 11, 13 (18) -triene in preparing medicament for treating skin diseases.
在铜盐催化剂的作用下,重氮苯乙酸甲酯与吗啉衍生的烯胺能够发生一种新型加成反应。
A novel addition reaction of methyl phenyldiazoacetate to enamine(which was prepared from acetophenone and secondary amine) was investigated using copper salt as a catalyst.
用过渡态理论和AM 1方法,对8-二甲基- 7-甲氧基- 5 -烯-壬腈氧化物分子内环加成反应机理进行了研究。
The reaction mechanism of 8-dimethyl-7-methoxy-5-ethenyl-nonanenitrile oxide cycloaddition has been studied with the molecular orbital AM1 method and transition state theory.
产物是双键经过重排的取代烯丙基二甲基甲氧基硅烷6—10,该产物可进行一系列亲电取代反应。
The rearrangement of allylic double bond took placed in the course of these reaction. 6—12 are able to undergo a lot of electrophilic substitution reaction.
报道肉芝软珊瑚素的重要中间体6-甲基-8-三甲硅氧基-6-烯-2-酮-1-辛酸乙酯的合成。
This paper reports the synthesis of 6-methyl-8-trimethylsiloxy-oct-6-ene-2- one-1-acid acetate.
十四烯二酸二甲酯;
采用甲硫醇、呋喃硫醇、吡嗪、反-2,4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料,可以调配出香气逼真的炖牛肉香精。
Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor. This flavor has natural and vivid pot-roast beef flavor.
优选地,蓖麻酸甲酯通过交叉复分解或同质复分解分别转化成高 烯丙一元醇1-癸烯-4-醇或高烯丙多元醇9-十八烯-7,12-二醇。
Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.
优选地,蓖麻酸甲酯通过交叉复分解或同质复分解分别转化成高 烯丙一元醇1-癸烯-4-醇或高烯丙多元醇9-十八烯-7,12-二醇。
Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.
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