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气相色谱法分析液氧、液空中二氧化碳采样及样品前处理方法的研究 被引量:1
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作者 卢雪姣 《中小企业管理与科技》 2016年第5期271-272,共2页
设计组装一种取样组件,可直接将液空、液氧样品进入色谱仪进行测定二氧化碳,避免使用传统保温瓶取样,间接进样方法使得空气中的二氧化碳干扰所产生的误差减小,直接进样法测定二氧化碳的标准偏差为0.354。
关键词 气相色谱法 液氧 液空 采样组件 直接进样 二氧化碳
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A Pseudo Random Number Generator under Windows Using Refined Descriptive Sampling
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作者 Latifa Ourbih-Baghdali Megdouda Ourbih-Tari Abdenasser Dahmani 《Computer Technology and Application》 2013年第2期85-92,共8页
In this paper, we propose a software component under Windows that generates pseudo random numbers using RDS (Refined Descriptive Sampling) as required by the simulation. RDS is regarded as the best sampling method a... In this paper, we propose a software component under Windows that generates pseudo random numbers using RDS (Refined Descriptive Sampling) as required by the simulation. RDS is regarded as the best sampling method as shown in the literature. In order to validate the proposed component, its implementation is proposed on approximating integrals. The simulation results from RDS using "RDSRnd" generator were compared to those obtained using the generator "Rnd" included in the Pascal programming language under Windows. The best results are given by the proposed software component. 展开更多
关键词 Random sampling refined descriptive sampling software component SIMULATION integral.
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