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An Iterative Calculating Method for Inbreeding and Relationship Coefficient
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作者 HANDan-dan SONGRen-xue 《Journal of Northeast Agricultural University(English Edition)》 CAS 2001年第1期19-22,共4页
The iterative formulas of inbreeding and relationship coefficients were put forward by using numerator elationship. It is suitable for any none - generation - overlap pedigree. The inbreeding and relationship coeffi- ... The iterative formulas of inbreeding and relationship coefficients were put forward by using numerator elationship. It is suitable for any none - generation - overlap pedigree. The inbreeding and relationship coeffi- ient of offsprings can be calculated by those of parents. The deducing process of numerator relationship is simple and clear comparing with path analysis. An example shows the usage of these formulas. 展开更多
关键词 Inbreeding coefficient relationship coefficient numerator relationship iterative calculating
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Estimation of Average Relationship Coefficient in Animal Population
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作者 YANGYun-qing LUJin 《Journal of Northeast Agricultural University(English Edition)》 CAS 2000年第1期21-24,共4页
It is not reasonable to estimate the average relationship degree in statistics by using the mean of relationship coefficients between the individuals in a animal population.According to different usage of relationship... It is not reasonable to estimate the average relationship degree in statistics by using the mean of relationship coefficients between the individuals in a animal population.According to different usage of relationship coefficient,the estimation method of average relationship coefficient in animal population was disscussed by using Z transformation or CSC transformation,respectively,when relationship coefficient shows relationship degree or probability. 展开更多
关键词 average relationship coefficient estimation method Z transformation CSC transformation
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QSRR Study on the Relationship between the Chromatographic Capacity Factor and Lipophilicity and Structure Parameters of Halogenated Thiophenols
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作者 张学胜 陈斌媛 李定龙 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2012年第6期903-909,共7页
The capacity factors (k') of fourteen types ofhalogenated thiophenols in different phases of methanol-water eluent were determined by reversed phased high-performance liquid chromatography (RP-HPLC) and the relat... The capacity factors (k') of fourteen types ofhalogenated thiophenols in different phases of methanol-water eluent were determined by reversed phased high-performance liquid chromatography (RP-HPLC) and the relationships between the logarithm of capacity factor lgK' and methanol ratio ψ were analyzed. A fair linear relationship is found between lgK' and ψ, and the correlation coefficients R2 of the constructed linear equations are all greater than 0.990. Relationship between the chromatographic data lgKw' when extrapolated to pure water and n-octanol/water partition coefficient lgKow obtained by the group contribution method has shown a good linear correlation with R2= 0.956. The structure parameters of fourteen halogenated thiophenols were calculated by using DFT, and the correlation equation of lgKw' and structure parameters was obtained by using SPSS, lgKw' = -0.409 + 0.039a and R2 = 0.981, meaning that lgKw' is mainly determined by the polarizability α. 展开更多
关键词 halogenated thiophenol capacity factor n-octanol/water partition coefficient quantitative structure-chromatographic retention relationship
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