نتایج جستجو برای: concentration calculation

تعداد نتایج: 479662  

2015
Jonathan A Cook Jenni Hislop Douglas G Altman Peter Fayers Andrew H Briggs Craig R Ramsay John D Norrie Ian M Harvey Brian Buckley Dean Fergusson Ian Ford Luke D Vale

BACKGROUND Central to the design of a randomised controlled trial is the calculation of the number of participants needed. This is typically achieved by specifying a target difference and calculating the corresponding sample size, which provides reassurance that the trial will have the required statistical power (at the planned statistical significance level) to identify whether a difference of...

Journal: :Journal of Thermal Engineering 2022

Modern engineering challenges require the world to use renewable and environmentally friendly energy. One of most important forms energy is solar The parabolic collector a popular used absorb In this study, new approach calculate radiation concentration ratio in collector. calculated from reflection beam incident radiation, it depends on two main variables: width (W) focal length (P). model tes...

2008
Kanji Hioka Yoshimasa Miwa Chen Li Qi-Wei Ge Hiroshi Matsuno Satoru Miyano

Kanji Hioka Graduate School of Science and Engineering, Yamaguchi University 1677-1 Yoshida, Yamaguchi 753-8512, Japan [email protected] Yoshimasa Miwa Graduate School of Science and Engineering, Yamaguchi University 1677-1 Yoshida, Yamaguchi 753-8512, Japan [email protected] Chen Li Human Genome Center, University of Tokyo 4-6-1 Shirokanedai, Minatoku, Tokyo 108-8639, Ja...

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