1)  two-phase commit
二阶段提交
1.
This paper first introduces the concept of in-doubt distributed transactions and two-phase commit mechanism in oracle database as well as the reason for the in-doubt distributed transactions and the method to deal with it.
本文介绍了oracle数据库中的分布式事务概念、二阶段提交机制、IN-DOUBT分布式事务产生的原因及处理方法,同时介绍了基于智能存储技术的容灾系统,并给出了分布式数据库环境的容灾数据库中IN-DOUBT分布式事务的处理实例。
2)  Two-phase commitment extended(2PCE)
二阶段提交扩展
3)  dual commit protocol
二阶段提交协议
1.
The paper introduces the basic idea of dual commit protocol and its defective disposition,and also makes an analysis of shortcoming of defective disposition and puts forward its improvement strategy.
介绍了二阶段提交协议的基本思想及故障处理,分析了其故障处理的缺陷并提出了改进策略,及对改进策略优缺点的分析。
4)  second order
二阶
1.
The existence of periodic solutions for a class of second order functional differential equations;
一类二阶泛函微分方程周期解的存在性
2.
Interval oscillation for second order neutral functional differential equations;
一类二阶中立型泛函微分方程的区间振动性
3.
Oscillation comparison theorems of solutions for second order nonlinear elliptic differential equations;
二阶非线性椭圆型微分方程解的振动比较定理
5)  second-order
二阶
1.
Oscillation criteria for a kind of second-order nonlinear difference equation;
一类二阶非线性差分方程的振动准则
2.
Boundedness of second-order nonlinear functional differential equations;
关于二阶非线性泛函微分方程的有界性
3.
A Second-order Algorithm for the Numerical S imulation of Stochastic Resonance;
一种用于随机共振数值模拟的二阶方法
6)  two-stage sampling
二阶抽样
1.
Extension of two useful results in two-stage sampling and its applications;
对二阶抽样中两个定理的扩充及其应用
2.
Based on the calculations in simple random sampling,stratified random sampling and two-stage sampling,it is shown that when the sampling size of two-stage sampling is 1/2 that of simple random sampling,the mean square error is much smaller than that of simple random sampling.
在通过对简单随机抽样、分层随机抽样和二阶抽样的实例计算之后,证明二阶抽样在抽样样本量为简单随机抽样的1/2时,其样本方差远小于简单随机抽样的样本方差;在样本量与分层随机抽样相同的情况下,其样本方差也要远小于分层随机抽样方差,提高了抽样数据的可信度和精度,从而肯定了二阶抽样方法对于数控机床可靠性研究中数据抽样问题的适用性,节约了抽样成本。
3.
Based on the precision and the cost of the relationship between the use of conditional extremum for the function of several variables method to determine when the first sample for sampling with probability proportion to size,the second-simple random sampling,the two-stage sampling is optimal allocation.
本文根据精度与费用之间的关系,利用求多元函数条件极值的方法,确定当第一级抽样为有放回PPS抽样,第二级抽样为简单随机抽样时,二阶抽样的样本容量最优分配。
参考词条
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