助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   new group 在 化学 分类中 的翻译结果: 查询用时:0.075秒
图标索引 在分类学科中查询
所有学科
化学
计算机软件及计算机应用
电信技术
互联网技术
无机化工
肿瘤学
数学
生物学
有机化工
更多类别查询

图标索引 历史查询
 

new group
相关语句
  新基团
    New group contribution correlations, which are based on systematical evaluation of critical data, for estimating critical properties have been proposed with contribution values of groups. The average deviations of T C,P C,V C are 0.76%, 4.25% and 2.33%respectively, and that are lower than those by Joback′s method chosen for comparison.
    在系统整理大量临界数据的基础上,提出了临界性质的新基团估算法及基团贡献值,TC、PC、VC的平均误差分别为0.76、4.25、2.33%,此结果优于作为比较的Joback法。
短句来源
  新的基团
    CH2NHCOCH2 was defined as a new group and new interaction parameters were calibrated from the equilibrium data of the ternary system water + caprolactam + 1-octanol.
    我们定义了一个新的基团CH2NHCOCH2,并且从水+己内酰胺+正辛醇三元体系的相平衡数据中拟合得到了相互作用参数。
    An application study of a new group dyeing index and its down index
    一种新的基团染色指数及其倒指数的应用研究
短句来源
    The assessment of its computing precision and applicability was made and some new group parameters were recommended in this paper.
    在此基础上,对RD法的计算精度与适用性给出了定量的分析和评价,提出了新的基团及其参数。
短句来源
    A new group dyeing index, ~mX, was proposed in this paper. This index,which was very easy to calculate and also had a good discrimination ability for structure difference.
    在分子图邻接矩阵的基础上提出了1个新的基团染色指数mX,该指数易于计算,有较高的结构差异区分能力.
短句来源
  “new group”译为未确定词的双语例句
    New Group Contribution Method for Estimating Hydrophobic Constants of Selected Organic Pollutants
    典型有机污染物疏水常数的基团贡献模型
短句来源
    Further, the group interaction parameters for 12 group combinations were refitted by Nelder-Mead simplex method. Additionally, new group interaction parameters for 21 group combinations were fitted by experimental data of vapor-liquid equilibria. The model was applied to predict the vapor-liquid equilibria for 86 binary systems and 18 ternary systems at different temperatures and pressures by using the modified and supplemented group interaction parameters.
    进一步利用Nelder-Mead扩展单纯形求极值法对预测结果差的体系重新回归了12组MLUNIFAC基团相互作用参数,并对原MLUNIFAC模型中缺少的基团相互作用参数用大量实验数据补充回归了21组基团相互作用参数,扩大了模型的应用范围。
短句来源
    Additionally, 7 new group interaction parameters were fitted by predicting 7 ternary vapor-liquid equilibria systems (361 experimental data);
    用同样方法对原模型没有的基团参数7个体系(共计361个实验点)进行了回归补充,得到了7组基团相互作用参数。
短句来源
    According to the result, new group interaction parameters are right. The original MDUNIFAC group interaction parameters matrix and extend the range of application of this model are extended.
    由此可以证明修正和补充得到的基团参数是正确的,这在一定程度上扩充了原MDUNIFAC模型的基团参数矩阵,扩大了这一模型的预测范围。
短句来源
    The new group interaction parameters in this paper were proved that it have important practical application values in chemistry reaction engineer, separating engineer and chemical process.
    在化学反应工程,分离工程,化工过程研究,开发和设计当中具有极强的实用价值。
短句来源
更多       
查询“new group”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  new group
It has been proposed to view extracellular adaptation factors (EAFs) as a new group of biologically active substances.
      
Growth-regulating activity of N-benzyl- and O-benzyl-containing compounds belonging to a new group of synthetic analogues of nat
      
Organofluoride Ammonium Compounds: A New Group of Reversible Inhibitors of Cholinesterases of Various Animals
      
Alkylammonium Derivatives of Chlorobenzoic Acids: A New Group of Reversible Ester Bond-Containing Inhibitors of Cholinesterases
      
N-Benzyl and O-Benzyl Compounds: A New Group of Synthetic Auxin Biomimetics
      
更多          


Based on the group additivity method of Rihani and Doraiswamy, a computer program for automatically analyzing structures and computing heat capacities has been set up. The method was verified by using literature data of 356 organic compounds. The assessment of its computing precision and applicability was made and some new group parameters were recommended in this paper.

本工作编制了Rihani-Doraiswamy热容推算方法的计算程序,实现了功能团自动解析,并用479种物质的文献数据对该法进行核实;在此基础上,对RD法的计算精度与适用性给出了定量的分析和评价,提出了新的基团及其参数。

Based onthe molecular QCLC model, a group contribution quasi-chemical local composition model is proposed, in which polar molecule is divided into several non-polar functional groups. By fitting the activity coefficient data for 90 vapor-liquid equilibrium binary systems, the interaction parameters of 9 functional groups in alkanes, aromatics, alcohols, ketones and water are regressed. Using these parameters, the activity coefficients of 11 ternary vapor-liquid equilibrium systems and the tie lines in 4 ternary...

Based onthe molecular QCLC model, a group contribution quasi-chemical local composition model is proposed, in which polar molecule is divided into several non-polar functional groups. By fitting the activity coefficient data for 90 vapor-liquid equilibrium binary systems, the interaction parameters of 9 functional groups in alkanes, aromatics, alcohols, ketones and water are regressed. Using these parameters, the activity coefficients of 11 ternary vapor-liquid equilibrium systems and the tie lines in 4 ternary liquid-liquid equilibrium systems are predicted by the group contribution QCLC model. The results show that our new group contribution model is superior to the UNIFAC model with less parameters and good predictability.

本文在前文的分子模型基础上,提出了似化学局部组成的基团模型,可用于极性分子混合物申组分活度系数的预测。该模型划分基团的方法与UNIFAC不同,将极性分子划分为非极性基团。通过对90个二元体系的回归,得到了烷烃、芳烃、醇、酮、水五类物质9种基团间的相互作用参数;通过对三元体系活度系数和液液平衡结线的推算表明,本模型与UNIFAC模型相比,具有参数少、预测性能好等优点,而且从汽液平衡数据回归的参数可用于预测液液平衡。

New group contribution methods of estimating the surface tension at boiling point were proposed for the first time. The average deviations of three methods are lower than 3%, the estimated accuracies are superior to the corresponding state methods. The proposed methods have good adaptability and reliability, and two of these are recommended.

首次用基团贡献法估算了沸点下表面张力。所提出的三个计算式的平均误差均小于3%,明显地小于目前使用的对应状态法,且可靠性好,使用面广。本文作者还从中推荐了两个计算式。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关new group的内容
在知识搜索中查有关new group的内容
在数字搜索中查有关new group的内容
在概念知识元中查有关new group的内容
在学术趋势中查有关new group的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社