Factors Affecting Extension Ladder Angular Positioning
نویسندگان
چکیده
منابع مشابه
Kau Factors Affecting Extension Ladder Angular Positioning
Objective: The study objectives were to identify factors affecting extension ladders' angular positioning and evaluate the effectiveness of two anthropometric positioning methods. Background: A leading cause for extension ladder fall incidents is a slide-out event, usually related to suboptimal ladder inclination. An improved ladder positioning method or procedure could reduce the risk of ladde...
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Agricultural extension, as an informal educational system, is one of agricultural development tools that lean on human capitals. Inefficiency of public bureaucracy on the one hand, and managerial problems on the other hand, as well as neglecting real needs of beneficiaries in planning, have determined responsible to transfer administrative tasks to the private sector and reduce government''s te...
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Latching MEMS angular positioning stages have been constructed by deep reactive ion etching and undercut of bonded silicon-on-insulator. Rotation is powered by a primary linear drive acting on a tangential drive pin attached to a passive stage. The approach is extensible to other tilt axes using inserted components. The linear stage is driven by buckling electrothermal actuators. Latching is ...
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ژورنال
عنوان ژورنال: Human Factors: The Journal of the Human Factors and Ergonomics Society
سال: 2012
ISSN: 0018-7208,1547-8181
DOI: 10.1177/0018720812445805