爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.Parameters of Mark-Houwink equation also be estimated in this thesis using GPC and intrinsic viscosity data. For COC with 50mol% fraction of NB, a is 0.664 and K is 1.742*10~4 with 1,2,4-trichlorobenzene as the solvent at 150"C.
另外,还用GPC谱图及[η]订定了NB含量约为50%的共聚物在1,2,4—三氯苯中150℃下的Mark-Houwink方程参数K、α值,分别为α=0.664,K=1.742x10~-4。 并对COC甲苯溶液的流变行为进行了研究。收藏指正
2.Four equal conversion rate methods,which are Friedman method,Vyazovkin method,modified Coats-Redfern method and Flynn-Wall-Ozawa(FWO)method,are employed to calculate the kinetics parameters of CaCO_3 decomposition. The active energy is in the range of 170.86 kJ/mol～230.87 kJ/mol,and varies with conversion fraction during CaCO_3 decomposition.
分别应用Friedman法、Vyazovkin法、改进的Coats-Redfern法和Flynn-Wall-Ozawa(FWO)法等4种不同的等转化率法计算了CaCO3的分解动力学参数,得到的活化能范围为170.86kJ/mol～230.87kJ/mol.收藏指正
3.When desorped under 0.01 mol·l~(-1) CaCl_2, the clay fraction and coarse sand fractions had the strongest capacity for Cu~(2+) adsorption compared to other fractions.
对同一粒径颗粒的Cu~(2+)吸附量来说,乌栅土高于黄泥土,而解吸量则相反.收藏指正
4.The results show that octanol content, pH and ionic strength are key factors. Under the con ditions of low ionic strength(C_kcl=0.05 mol/L),high pH value(pH>13.6 6)and octanol content 0.85%(volume fraction),the extraction efficiency approac hes 100%.
结果表明 ,正辛醇的量、水相 pH值是萃取过程的关键因素 ,在低离子强度 (CKCl=0 .0 5mol/L)、高 pH值(pH =13 6 6 )、含正辛醇体积分数为 0 85 %的情况下 ,萃取率接近 10 0 % .收藏指正
5.Experimental result indicated that the IL is an effective absorbent of CO2.The solubility of CO2 in mass fraction 45% aqueous solution of the IL was up to 0.444 mol CO2/mol IL at 40 ℃ and 106 kPa,very close to the theoretical maximum loading(0.5 mol CO2/mol IL).
吸收实验结果表明,该离子液体能够有效地吸收CO2,在40℃和106 kPa下,质量分数为45%的离子液体水溶液吸收CO2至饱和时,溶液中CO2的摩尔分数可达0.444 mol CO2/mol IL,接近理论吸收量0.5 mol CO2/mol IL;收藏指正
6.The Hawaiian strain of Pseudaletia unipuncta GV was propagated in Pseudaletia separata larvae. The capsules of PuGV were dissolved in 0.02mol/L NaOH, the concentrated crude protein extract was firstly filtered through on a column of Sephadex G-200, the fraction mainly containing synergetic factor was further purified by applying onto a DEAE-Sepharose CL-6B column.
粘虫颗粒体病毒经0．02mol／LNaOH碱溶，先用SephadexG－200凝胶过滤层析柱从病毒蛋白粗提物中分离增效因子，然后选用DEAE－SepharoseCL－6B离子交换层析柱进一步纯化增效因子，得到少量电泳纯的增效因子蛋白样品。收藏指正
7.In this study, direct current (DC) conductivities in the system which was composed of the clay fraction (<2μ) of variable charge soil and electrolyte solution with a concentration of 0.35×10~(-4)—1.3×10~(-4) mol/L were measured within the range of 5—50℃.
本工作选用二种可变电荷土壤粘粒(<2μ),分别含有0.35×10~(-4)-1.3×10~(-4)mol/L的不同电解质,在不同含水量下,在5—50℃范围内测量其直流电导率的变化。收藏指正
8.By applying suitable feeding mode and the optimal conditions in fed?batch fermentation, the CDW, PHBV mass content, HV unit fraction and YHV/propionate could be apparently improred to be 27.7g/L, 80.7%, 16.8 mol% and 54%(HV/g propionate). respectively. ?
采用合理的补料方式，可使菌体干重、β－羟基丁酸和β－羟基戊酸共聚物的质量分数、β－羟基戊酸组分的摩尔分数，以及酸对β－羟基戊酸组分转化率等指标明显提高，在最佳补料条件下，上述指标可分别达到27．7g／L，80．7％，16．8％和54％．收藏指正
尝试查询
汉英释义