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1)  Powell-Sabin elements
Powell-Sabin元
2)  Powell-Sabin triangula-tion
Powell-Sabin三角剖分
3)  Powell-Sabin's type (Ⅱ) refinement
Powell-Sabin(Ⅱ)型加密三角剖分
4)  Sabin strain
Sabin株
1.
Objective To compare the neutralizing antibody titers induced by 3 doses of inactivated poliovirus vaccine(IPV)prepared with Sabin strain,at different concentrations,in rats,and provide basis for optimizing the immune schedule of Sabin IPV.
目的比较不同浓度Sabin株脊髓灰质炎灭活疫苗(Sabin IPV)3针免疫大鼠的中和抗体效价,为确定Sabin IPV的最佳免疫方案提供参考。
2.
Objective To observe the effect of multiplicity of infection(MOI)on the proliferation of poliomyelitis virus Sabin strain in Vero cells.
目的观察不同感染复数(MOI)对Sabin株脊髓灰质炎病毒在Vero细胞中增殖的影响。
3.
WHO encouraged vaccine manufactures to develop IPV prepared with attenuated virus, Sabin strain, in consideration of biological safe factors durning vaccine producing.
对于新的生产厂家考虑到疫苗生产的生物安全性等因素,WHO鼓励研制Sabin株脊髓灰质炎灭活疫苗(Sabin IPV)。
5)  POWELL method
POWELL法
1.
The powell method is a very effictive method to solve nonrestraint optimization problem.
Powell法历经多次修改,现公认为是解无约束优化的一种十分有效的直接法,应用及其广泛,该文将现行Powell直接法中作了进—步改进,其运算量较一般性改进方法有较大程度的降低。
2.
Based on the framework of parallel genetic algorithm(PGA),a parallel genetic-Powell-ant colony hybrid algorithm(PGPAHA) is given,in which the migration moment of sub-populations is decided according to their convergence rate,and Powell method is taken as one of operator of PGA to accelerate their convergence rate at the la.
该算法以并行遗传算法为基本框架,根据各子群体收敛速率的快慢来决定它们之间迁移的时机,在收敛后期加入Powell法作为并行遗传算法的算子来加快收敛速度,并利用蚁群优化算法提高计算的精度。
3.
Features of chaos and its applications to optimization are analyzed, and a mixed chaos optimization combining Powell method is found.
对混沌的特性及其优化应用进行了分析,建立了混沌结合传统Powell法的混合算法。
6)  Powell's method
Powell法
补充资料:Powell’s method Powell
分子式:
CAS号:

性质:法是在无约束优化算法之一,首先选取一组共轭方向,从某个初始点出发,求目标函数在这些方向上的极小值点,然后以该点为新的出发点,重复这一过程直到获得满意解,其优点是不必计算目标函数的梯度就可以在有限步内找到极值点。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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