Thermal implications of the new relaxed IEEE RF safety standard for head exposures to cellular telephones at 835 and 1900 MHz

2006 ◽  
Vol 54 (7) ◽  
pp. 3146-3154 ◽  
Author(s):  
Qing-Xiang Li ◽  
O.P. Gandhi
Keyword(s):  
Safety Standard ◽  
Cellular Telephones ◽  
Rf Safety

So Your Consumer Product Complies With The Voluntary Safety Standard - Now What?

2010 ◽  
Author(s):  
Shelley Waters Deppa ◽  
Carol Pollack-Nelson ◽  
Elaine D. Allen
Keyword(s):  
Consumer Product ◽  
Safety Standard

Usage of Cellular Telephones: An Informal Look

1990 ◽  
Vol 71 (3_suppl) ◽  
pp. 1375-1376
Author(s):  
John Trinkaus
Keyword(s):  
Cellular Telephones

scholarly journals Validation of Lumbar Compressive Force Simulation in Forward Flexion Condition

2021 ◽  
Vol 11 (2) ◽  
pp. 726
Author(s):  
Xiaohan Xiang ◽  
Yoji Yamada ◽  
Yasuhiro Akiyama ◽  
Ziliang Tao ◽  
Naoki Kudo
Keyword(s):  
Low Back Pain ◽  
Intraclass Correlation ◽  
Compressive Force ◽  
The Other ◽  
Low Back ◽  
Safety Standard ◽  
Forward Flexion ◽  
Good Consistency ◽  
Real Person ◽  
Coefficient Method

Safety standard requirements must be implemented for lumbar support robots, which are mainly used for preventing low back pain (LBP) in caregivers. Usually, simulations are used to mimic actions that are not allowed for a real person. However, a comprehensive validation of a simulator in dynamic conditions has not been conducted. In this study, an ergonomic simulator is validated through forward flexion invasive experiments. The correspondence between the simulated and experimental compressive force (CF), as well as the CF obtained using two existing models about the unified angle, is investigated. The results show that the CF error between the measurements and the simulator at a flexion angle of 30∘ is 11.8% and is lower than those obtained for the other two models (16.8% and 20.6%). Linear regression shows that the invasive data and estimated CF are close (slope = 1) in Merryweather’s model and CF simulator but not for Potvin’s model. We evaluate the precision of the simulator by using intraclass correlation coefficient method. Merryweather’s model is moderately consistent with invasive measurements, with R–0.685 and 0.627 at 0 and 30∘, while the CF simulator shows good consistency with Merryweather’s model with R–0.879 and 0836 at 0 and 30∘.

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