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J

John R. Powers

centers for disease control & prevention - usa

12H指数
49论文数
592被引数
收录论文 5
发表时间
Evaluation of a walk-through ladder top design during ladder-roof transitioning tasks
err2017-03-01
err4
errOAAI
errSimeonov, P.; Hsiao, H.; Powers, J.; Ammons, D.; Kau, T.; Cantis, D.; Zwiener, J.; Weaver, D.
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Research to improve extension ladder angular positioning改进伸缩梯角定位的研究
err2013-05-01
err8
errOAAI
errSimeonov, P.; Hsiao, H.; Powers, J.; Kim, I. -J.; Kau, T. -Y.; Weaver, D.
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Fall arrest characteristics of a scissor lift剪叉式升降机的防坠落特性
err2010-06-01
err8
PREAI
errHarris, James R.; Powers, John R., Jr.; Pan, Christopher S.; Boehler, Brad
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