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三交组合ADAA模型和种子模型的Monte Carlo模拟分析 被引量:2
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作者 许自成 吕德彬 朱军 《河南农业大学学报》 CAS CSCD 2003年第4期311-316,共6页
采用MonteCarlo模拟验证了三交方式遗传模型及其统计方法的可靠性.结果表明:(1)采用MINQUE(1)法可以无偏地估计ADAA模型中的各遗传方差分量,采用MINQUE(0/1)法可以无偏地估计种子模型中的各遗传方差分量;在种子模型中,当直接加性与母体... 采用MonteCarlo模拟验证了三交方式遗传模型及其统计方法的可靠性.结果表明:(1)采用MINQUE(1)法可以无偏地估计ADAA模型中的各遗传方差分量,采用MINQUE(0/1)法可以无偏地估计种子模型中的各遗传方差分量;在种子模型中,当直接加性与母体加性效应间的协方差、直接显性与母体显性效应间的协方差不存在或不重要时,可利用MINQUE(1)法对缩减的种子模型进行重新分析,并获得无偏的分析结果.(2)分析ADAA模型或种子模型需要亲本、单交F1和三交F13个世代,在此基础上增加新的世代或扩大样本容量更有利于提高方差分量和遗传效应的估算(预测)效益.(3)ADAA模型或种子模型中各遗传效应分量可采用AUP法进行无偏地预测. 展开更多
关键词 三交组合 种子模型 MONTECARLO模拟 遗传模型 选育 作物品种
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COLLABORATIVE DESIGN OF MULTIPHYSICS PROBLEMS 被引量:2
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作者 SONG Shaoyun LI Shiqi 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2007年第3期105-108,共4页
Collaborative design is recommended to solve multiphysics problems (MPPS). Firstly, mathematical model of MPPS is constructed and solved by a proposed partitioned method, analysis of which suggests that collaborativ... Collaborative design is recommended to solve multiphysics problems (MPPS). Firstly, mathematical model of MPPS is constructed and solved by a proposed partitioned method, analysis of which suggests that collaborative design be feasible to solve MPPS. As the key technology of col-laborative design of MPPS, a task collaboration algorithm is then proposed. To develop the applica-tion framework of collaborative design, applied unified process(AUP) is proposed based on rational unified process(RUP). Then AUP is used to develop the collaborative design platform, whose function framework is constructed according to the process of project management. Finally three MPPS are solved on this platform and the results suggest that the proposed model, algorithm and framework be feasible. 展开更多
关键词 Multiphysics problems Collaborative design Task collaboration Applied unified process(aup Partitioned method
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