نتایج جستجو برای: service life

تعداد نتایج: 1051342  

Journal: :Occupational health & safety 2000
T Cothran

The Occupational Safety and Health Administration believes chemical odor breakthrough is no longer an adequate, sufficient indicator for when workers should change chemical cartridges. Therefore, OSHA's 1998 revision to its respiratory protection standard, 29 CFR 1910.134, requires users of chemical cartridge respirators to implement a cartridge change schedule based on "objective information o...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1390

abstract: the present study is about prophet ishmael, some parts of his life; his personality in the quran and the bible; and the comparison of the content of these two religious books. compilation of the study has been done with a new perspective and new presentation approach. since prophets have been human beings’ role model and their life has been a perfect example for humanity in all ages,...

2008
Youngho Rhee Banghun Chun Eun Jung Lee

Recently, mobile devices penetrate people’s everyday life and become personalized necessaries of human’s life. Therefore, people, today, always carry mobile device anytime and anywhere. Given the current lifestyle, the present paper believes that mobile device evolves to personal life recorder for caching everyday life. The LifeDiary creates daily activity automatically in a time line and allow...

Journal: :Canadian Journal of Civil Engineering 2019

Journal: :Dnipropetrovsk University Bulletin. History & Archaeology series 2017

Journal: :Journal of Applied Clinical Medical Physics 2015

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