历史查询   



 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。 
The corrective terms contain the correctionG1 for gravity anomalies (4) depending on the topography.


The mass equilibrium model was applied to this selfaggregating system, taking into account the deviation of the activity coefficients from the DebyeHückel limiting law by using the Guggenheim corrective terms for mixed electrolyte solutions.


The errors induced by inadequate corrective terms taken into account in the measurement theory, the effect of the electronic noise of the equipment, and the procedure of differentiating experimental data are shown.


Direct Derivation of Corrective Terms in SDE Through Nonlinear Transformation on FokkerPlanck Equation


Corrective terms are theoretically evaluated and their efficiency is shown in numerical simulations.

 更多 


 The polybutadiene (cis1, 4 and 1, 2) polymerized with iron catalyst was investigated by 18CNMR. Assignments have been made on the spectra for all peaks of the Aliphatic and olefinic carbons using chemical shift corrective terms together with furukawa parameters. The relative intensities of peaks were calculated from the bernoulli distribution of cis1, 4 and 1, 2 units.Quantification of cis1, 4 and 1, 2 contents, sequence distribution, alternation pattern of cis1, 4 and 1, 2 units, and the chain propagation... The polybutadiene (cis1, 4 and 1, 2) polymerized with iron catalyst was investigated by 18CNMR. Assignments have been made on the spectra for all peaks of the Aliphatic and olefinic carbons using chemical shift corrective terms together with furukawa parameters. The relative intensities of peaks were calculated from the bernoulli distribution of cis1, 4 and 1, 2 units.Quantification of cis1, 4 and 1, 2 contents, sequence distribution, alternation pattern of cis1, 4 and 1, 2 units, and the chain propagation mechanism were discussed as a result of the detailed study of the spectra.  前已报道,以高活性铁催化剂可以制得性能良好的含顺1,41,2结构的等二元聚丁二烯。文献已有用~(13)CNMR研究以钴,钼催化剂合成的这种等二元聚合物的报导。本工作用~(13)CNMR进行了研究,得到的聚合物的~(13)CNMR图谱表明,聚合物的脂碳部分共有十一个共振峰,烯碳部分有九个峰。通过改进Furukawa的经验参数,并应用Randall的方法,这些共振峰的归属得到了令人满意的结果。确认该聚合物是双烯和单烯的无规共聚物,但偏离Bernoulli分布,趋向于一级Markov分布。  An approach to phase refinement for protein structures is proposed. Using a number of known atoms for which the restriction to "equal atoms" in the Sayre equation is relaxed, more exact fundamental equations and tangent formulas have been derived and discussed. This results in corrective terms in the equation and formulas, so that the calculated phases or their shifts can be corrected correspondingly. Moreover, reliable "observations" are added to the leastsquares minimization function based on the modified... An approach to phase refinement for protein structures is proposed. Using a number of known atoms for which the restriction to "equal atoms" in the Sayre equation is relaxed, more exact fundamental equations and tangent formulas have been derived and discussed. This results in corrective terms in the equation and formulas, so that the calculated phases or their shifts can be corrected correspondingly. Moreover, reliable "observations" are added to the leastsquares minimization function based on the modified equation to increase convergent effectiveness. Chemical modification methods can therefore continuously play their role while direct methods are employed. Thus an alternating refinement procedure of atomic parameters and phases of obvious practical significance is hereby given for protein structure analysis.  本文利用结构的部分已知原子,降低“相同原子”的限制,导出更为精确的Sayre方程和正切公式,引进了校正项,从而使由修改的8ayre方程或正切公式计算的新相角或相角改变量所包含的误差可得到相应的纠正。文中着重提出并论述了:基于新基本方程的最小二乘相角修正极小化函数增加了可靠的“观测量”,从而可提高其收敛效能。由于已知原子的利用,在应用直接法的同时可继续发挥化学修饰法的作用,这为蛋白质结构分析提供一个更具实际意义的原子参数和相角的交替修正过程。  An approach to phase refinement for protein structures is proposed.Using anumber of known atoms for which the restriction to“equal atoms”in the Sayreequation is relaxed,more exact fundamental equations and tangent formulas havebeen derived and discussed.This results in corrective terms in the equation andformulas,so that the calculated phases or their shifts can be corrected correspondingly.Moreover,reliable“observations”are added to the leastsquares minimization functionbased on the modified equation... An approach to phase refinement for protein structures is proposed.Using anumber of known atoms for which the restriction to“equal atoms”in the Sayreequation is relaxed,more exact fundamental equations and tangent formulas havebeen derived and discussed.This results in corrective terms in the equation andformulas,so that the calculated phases or their shifts can be corrected correspondingly.Moreover,reliable“observations”are added to the leastsquares minimization functionbased on the modified equation to increase convergent effectiveness.Chemicalmodification methods can therefore continuously play their role while direct methodsare employed.Thus an alternating refinement procedure of atomic parameters andphases of obvious practical significance is hereby given for protein structure analysis.  本文利用结构的部分已知原子,降低“相同原子”的限制,导出更为精确的Sayre 方程和正切公式,引进了校正项,从而使由修改的Sayre 方程或正切公式计算的新相角或相角改变量所包含的误差可得到相应的纠正。文中着重提出并论述了:基于新基本方程的最小二乘相角修正极小化函数增加了可靠的“观测量”,从而可提高其收敛效能。由于已知原子的利用,在应用直接法的同时可继续发挥化学修饰法的作用,这为蛋白质结构分析提供一个更具实际意义的原子参数和相角的交替修正过程。   << 更多相关文摘 
相关查询  



