Download e-book for iPad: Extra-Ordinary Ergonomics: How to Accommodate Small and Big by Karl H.E. Kroemer

By Karl H.E. Kroemer

Kroemer offers a advisor for pros in ergonomics on layout recommendations that accommodate humans open air what's thought of a ''normal'' physique kind. He discusses easy methods to verify actual talents, physique variations, and engineering parts in the event you are smaller, weaker, larger, disabled, getting older, pregnant, or for kids and teenagers. An appendix lists info on physique sizes around the globe. Kroemer is a former professor of ergonomics

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Extra resources for Extra-Ordinary Ergonomics: How to Accommodate Small and Big Persons, the Disabled and Elderly, Expectant Mothers, and Children

Sample text

This assumes that there is a given and measurable quantity of available capability, of which the job demands a portion. 5). Accordingly, the usual description of workload is by the portion of an individual’s resource (the person’s maximal performance capacity) expended in performing a given task. A situation that demands more from a person than she or he can give generates an overload condition. This results in suboptimal task performance, and the individual is likely to suffer physically or psychologically.

By K. H. E. Kroemer, H. B. Kroemer, and K. E. Kroemer-Elbert, 2001, Upper Saddle River, NJ: Prentice Hall. Copyright 2001 by Prentice Hall. ) of which provides an assessment of the actual workload. For more information about these measures, see the section on workload assessments in Chapter 2. SENSING THE ENVIRONMENT About 2,300 years ago, Aristotle established the classical five senses: seeing, hearing, touching, smelling, and tasting. In fact, touching involves several other sensations, such as force, pressure, distortion of tissues, warmth and cold, electricity, and even pain.

E. Kroemer, H. B. E. KroemerElbert, 2001, Upper Saddle River, NJ: Prentice Hall. Copyright 2001 by Prentice Hall. ) as the subtended visual angle at the pupil. 3 L D–1 in degrees. The young and healthy human eye can perceive a visual angle of at least 1 minute of arc. Visual Acuity The abilities to detect stationary small details and distinguish small objects are the most common ways to assess visual acuity. A standardized high-contrast pattern at fixed distances serves to measure visual acuity.

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