1) Lewis number
Lewis数
1.
Lewis number s effect on flame propagation in open-end pipes;
管内层流火焰传播中的Lewis数影响
2) Lewis acid
Lewis酸
1.
Rate enhancement in ligand-free palladium catalyzed Suzuki reaction by Lewis acid promoters;
Lewis酸促进无配体钯盐催化的Suzuki反应研究
2.
Metoprolol was synthesized with isopropylamine and 4-(2-methoxyethyl)phenyl glycidyl by different Lewis acid.
Lewis酸催化对甲氧乙基苯基缩水甘油醚与异丙胺的反应得到美托洛尔,考察不同的催化剂、反应温度、反应时间对反应的影响。
3.
The catalytic activities of Lewis acid,proton acid,inorganic anhydride,zeolite and montmorillonite were compared.
通过比较Lewis酸、质子酸、无机酸酐、分子筛、酸化蒙脱土在催化甘油与环己酮缩合反应中的活性,研究了催化剂结构和性质对环己酮转化率和反应选择性的影响。
3) Lewis acids
Lewis酸
1.
The activity of sulfate containing Lewis acids was moderate and the yield of butyl p-hydroxybenzoate was 68.
8%,具有Lewis酸性质的硫酸盐催化效果适中,酯化产率68。
4) Lewis base
Lewis碱
1.
Various zirconia stationary phases were prepared by modification with di-dentate Lewis bases: dodecyl-N,N-diacetic acid(RNCC), dodecyl-N-acetic acid-N-methyleneposphonic acid(RNCP), dodecyl-N,N-dimethylenephosphonic acid(RNPP) and dodecencylsuccinic acid(RCC).
利用其表面存在的大量的 Lewis酸性中心与 Lewis碱性化合物的强烈的酸碱作用可对氧化锆进行吸附改性 。
2.
The developments of the Lewis base-modified zirconia and mixed-oxide containing zirconia as stationary phases for high performance liquid chromatography (HPLC) are reviewed.
综述了Lewis碱改性氧化锆(或其复合氧化物)基质高效液相色谱填料的研究进展,涉及的改性剂包括氟离子、磷酸盐、有机膦酸、羧酸、酚类化合物、蛋白质和环糊精衍生物等。
3.
The capacity to catalyze the Knoevenagel condensation reaction as Lewis base is determined with benzaldehyde and ethylcyanoacetate at the room temperature,the reaction proceeds about 90% at 5-10 min.
6种离子液体均显示出温和的碱性,以其作为Lewis碱催化剂催化苯甲醛和氰基乙酸乙酯的Knoevenagel缩合反应,均在室温下,5~10 min产率即达90%左右,表现出很高的催化活性。
5) Lewis lung
Lewis肺
1.
Effect of artemisinin on metastatic tumor growth and lymphangiogenesis in mice bearing Lewis lung carcinoma;
青蒿素对小鼠Lewis肺癌移植瘤生长和淋巴管生成的影响
2.
Influence of celecoxib, a selective COX-2 inhibitor, on the expressions of COX-2, VEGF, MMP-2 and MVD in Lewis lung carcinoma tissue;
塞来昔布对Lewis肺癌组织COX-2、VEGF、MVD、MMP-2表达的影响
3.
Molecular imaging research on the effect of endostatin on mice GFP-expressing Lewis lung carcinoma;
内皮抑素对小鼠Lewis肺癌移植瘤抑瘤作用的分子影像研究
6) Lewis tumor
Lewis癌
补充资料：Lewis数
分子式：
CAS号：
性质：热扩散系数与分子扩散系数Dv的比值，以Le(或NLe)表示，无量纲，为处理同时有热传递与物质传递时反映物性的数群(k为导热系数，cp为定压比热，ρ为密度)。
CAS号：
性质：热扩散系数与分子扩散系数Dv的比值，以Le(或NLe)表示，无量纲，为处理同时有热传递与物质传递时反映物性的数群(k为导热系数，cp为定压比热，ρ为密度)。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条