Ergonomics at Work |
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Page 21
... position of the two objects . The observer also uses a number of monocular cues to perceive spatial relationships , and each relates to his past visual experience . These cues include the relative sizes of objects ( if two objects are ...
... position of the two objects . The observer also uses a number of monocular cues to perceive spatial relationships , and each relates to his past visual experience . These cues include the relative sizes of objects ( if two objects are ...
Page 125
... position and should not allow the possibility of intermediate positions . The advantage of a rotary selector switch lies in the increased number of positions which may be used ( Chapanis , 1951 , suggests between 3 and 24 ) . Most of ...
... position and should not allow the possibility of intermediate positions . The advantage of a rotary selector switch lies in the increased number of positions which may be used ( Chapanis , 1951 , suggests between 3 and 24 ) . Most of ...
Page 168
... position with the curves produced during ten other seated positions , wide variations in curve shapes can be seen ... position of the spine is supported . Their figures also suggest that a ' sitting - up - straight ' position produces a ...
... position with the curves produced during ten other seated positions , wide variations in curve shapes can be seen ... position of the spine is supported . Their figures also suggest that a ' sitting - up - straight ' position produces a ...
Contents
Ergonomics Past and Present | 1 |
I The Sensory Nervous System | 14 |
II Body Size and Movement | 32 |
Copyright | |
14 other sections not shown
Common terms and phrases
ability able accidents action acuity addition analogue angle anthropometric appear appropriate arrangement aspects auditory backrest behaviour biorhythm body carried cause cent Chapter circadian rhythms coding colour comfort compared complex components considered cues db(A degrees F demonstrated dial digital display dimensions discussed effects efficiency environment environmental ergonomics ergonomist errors example experience fatigue feedback Figure frequency function glare Human Factors hyperthermia illumination levels important increased indicated infrasound inspection intensity investigated ischial tuberosities knob light luminance machine man-machine system masking movement moving muscles muscular noise normal object observer occur operator operator's optimum performance perhaps photopic vision pointer position posture presbycusis problems Procrustes produced proprioceptive reading reduced relationship reproduced by permission retina seat signal sitter Snellen chart sound speed stimulus subjects suggest switch task temperature vibration visual acuity visual field workers workplace