氧
- 与 氧 相关的网络例句 [注:此内容来源于网络,仅供参考]
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While the adsorptions of 1-propanol and 1-Br-propane at 100℃ give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 ℃ shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150℃, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO〓 catalyst.
2原位IR光谱实验结果表明:200℃时丙烷/O〓混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似,均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰;溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基,异丙氧基主要转化为丙烯和丙酮,丙烯进一步转化为丙烯醛;溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基,正丙氧基主要转化为丙醛;丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基,升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。
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While the adsorptions of l-propanol and 1-Br-propane at 100 癈 give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 癈 shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150 癈, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO2 catalyst.
原位IR光谱实验结果表明:200℃时丙烷/O_2混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似,均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰;溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基,异丙氧基主要转化为丙烯和丙酮,丙烯进一步转化为丙烯醛;溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基,正丙氧基主要转化为丙醛;丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基,升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。
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The actinic radiation-curable and cationically polymerizable organic substance is at least one glycidylether of a polyhydric aliphatic, alicyclic or aromatic alcohol having at least three epoxy groups with epoxy equivalent weight between 90 and 800 grams per equivalent, at least one solid or liquid alicyclic epoxide with an epoxy equivalent weight between 90 and 330 grams per equivalent having at least two epoxy groups and monomer purity greater than about 90 % by weight, or at least a solid or liquid epoxycresol novolac or epoxyphenol novolac having epoxy equivalent weight between 130 and 350, or mixtures thereof.
可光化辐射固化并可阳离子聚合的有机物质为至少一种带有至少3个环氧基团环氧当量为90―800克每当量的脂族、脂环族或芳族多元醇的缩水甘油醚,至少一种环氧当量为80―330克每当量带有至少两个环氧基团且单体纯度大于约90wt%的固态或液态脂环环氧化物,或至少一种环氧当量为130―350的固态或液态环氧甲酚线性酚醛清漆或环氧苯酚线性酚醛清漆,或其混合物。
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Results The positive detecting rate of aerobe bottle against aerobe was 100%, Sensitivity was 10 CFU/ml. The positive detecting of anaerobe bottle against anaerobe was 100%, Sensitivity against peptococcus niger, Peptostreptococcus anerobius, bacteroides fragilis was 10 CFU/ml, 100 CFU/ml, 1000 CFU/ml, respectively.
结果 需氧瓶对需氧菌的阳性检测率为100%,检测敏感性为10 CFU/ml;厌氧瓶对厌氧菌的阳性检测率为100%,对黑色消化球菌、厌氧消化链球菌和脆弱类杆菌的检测敏感性分别为10 CFU/ml、100 CFU/ml和1 000 CFU/ml;厌氧瓶对兼性厌氧菌的阳性检测率为100%,检测敏感性为10 CFU/ml。
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Objective:to study the level of total anaerobic population, total aerobic population, four kinds of anaerobes and two kinds of aerobes in excrement of sufferers of varies kinds of irritable bowel syndrome and that of normal persons.methods:excrement specimens from 52 ibs sufferers of different kinds and that of 18 normal volunteers were collected, and the level of four kinds of anaerobes and two kinds of aerobes were quantified.results:the level of total anaerobic population and total aerobic population of excrement specimens of three kinds of ibs sufferers were different significantly, particularly the level of bifidobacterium and cillobacterium(p.01);the level of bacteroid population was higher significantly in diarrhea-predominant and mixed type of ibs sufferers (p.01);the level of enterococcus population was higher significantly in diarrhea-predominant ibs sufferers(p.05);among the aerobes, the number of escherichia coli and staphylococcus aureus colonies were increased by different level(p.01or0.05) in the ibs suffers, in particular, the number of escherichia coli colonies in diarrhea-predominant ibs sufferers increased most significantly.conclusion:sufferers of different types of ibs have different intestinal tract dysbacteria phenotypes.
目的:了解不同类型肠易激综合征患者和健康状况正常的人粪便中总厌氧菌群和需氧菌群及常见的4种厌氧菌和2种需氧菌的含量情况。方法:对临床上确诊的各类型ibs患者共52例和18例健康状况正常的志愿者,采集粪便标本进行总厌氧菌群和需氧菌群及常见的4种厌氧菌和2种需氧菌定量检测。
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Goal compound synthesis namely: Take the vanillic acid as outset raw material, obtains 4- hydroxyl - 3- anisole methyl formate with the methyl alcohol reflux conditions, then after the etherification, the nitration, the return to original state, the ring closure response obtains 6- methoxy - 7- animal pen oxygen radical kui zuo lin - 4- alkone, then passes through the chlorination, the substitution aniline, to escape responses again and so on animal pen oxygen radical, etherification to obtain the goal compound; The goal compound and the diethylamine had the amine substitution reaction to obtain TM1, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(N, N- two ethyl aminos) third oxygen radical] kui zuo lin; Through zuo has the etherification with the Austria niter to respond obtains TM2, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(2- methyl - 5- nitryl imidazole) third oxygen radical] kui zuo lin.
目标化合物的合成即:以香草酸为起始原料,与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯,然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮,然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物;目标化合物与二乙胺发生胺取代反应得到了TM1,即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉;通过与奥硝唑发生醚化反应得到TM2,即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。
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The total synthese three natural compounds to explore enantioselective synthesis of flavanol: We use phloroglucin and 2, 4, 6-trihydroxyacetophone as starting materials to synthesis distenin in two ways; Resorcin was used to synthsis 2, 5-dimethoxymethoxyacetophone though 3 steps.
对黄烷醇化合物的立体选择性全合成进行了探索:以间苯三酚和2,4,6-三羟基苯乙酮为原料,尝试用两条路线对Distenin化合物进行了全合成研究;以对苯二酚为原料,经三步制得2,5-二甲氧甲氧基苯乙酮,与2,4,6-三甲氧甲氧基苯甲醛反应,经四步反应得到天然产物3,5,7,2′,5′-二五羟基黄烷关键中间体1-(2′,6′-二甲氧甲氧基苯)-3-(2",4",6-三甲氧甲氧基苯)丙烷-1R,2R-二醇83及其对映体84;简要介绍了EGCg类化合物的生物活性和研究概况。
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The total synthese three natural compounds to explore enantioselective synthesis of flavanol: We use phloroglucin and 2, 4, 6-trihydroxyacetophone as starting materials to synthesis distenin in two ways; Resorcin was used to synthsis 2, 5-dimethoxymethoxyacetophone though 3 steps.
对黄烷醇化合物的立体选择性全合成进行了探索:以间苯三酚和2,4,6-三羟基苯乙酮为原料,尝试用两条路线对Distenin化合物进行了全合成研究;以对苯二酚为原料,经三步制得2,5-二甲氧甲氧基苯乙酮,与2,4,6-三甲氧甲氧基苯甲醛反应,经四步反应得到天然产物3,5,7,2′,5′-二五羟基黄烷关键中间体1-(2′,6′-二甲氧甲氧基苯)-3-(2&,4&,6-三甲氧甲氧基苯)丙烷-1R,2R-二醇83及其对映体84;简要介绍了EGCg类化合物的生物活性和研究概况。
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The thesis establish some columns which filled with garbage in LiuLiTun landfill, compared with anaerobic, we make the leachate which from new garbage recirculate under the aerobic circumstance, and measure the normal water index, so as to look for the impact of recirculation treatment on landfill leachate.
本论文通过在北京市海淀区六里屯卫生填埋场内设置垃圾填埋模拟柱,对新鲜垃圾产生的渗滤液进行好氧和厌氧两种条件下的循环回灌,并对好氧和厌氧两种情况下回灌前后渗滤液的产生量、常规水质指标等分别进行监测和分析,比较好氧和厌氧两种情况下回灌处理技术对城市垃圾渗滤液的处理效果,探讨好氧条件对渗滤液进行回灌处理的工艺机理,找出好氧回灌的工艺参数。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。