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生物通
5 个月
酵母与人类细胞色素c中Ω-loop C共进化残基替换的物理功能效应及其在 ...
这篇研究深入探讨了细胞色素c(Cyt)Ω-loop C区共进化残基(T40S/I57V/T63N)替换对蛋白构象动力学及过氧化物酶活性的调控机制。通过 ...
itpub.net
12 年
关于执行计划的NESTED LOOP 和 HASH JOIN
1.一个大表和一个小表(驱动表)连接,连接方式可以是等值或者是不等值 也可能比nested loop更快,因为处理内存中的hash表比处理b-tree索引更快 ...
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