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Personal eye protector performance requirements and testing
6.1.47 (65031) Wigglesworth, E.C. Personal eye protector performance requirements and testing. TRC Report No. T 7 3 - 0 9 1 4 0 Nov. 1972. Abstr in R and D Abstracts.
It is proposed that problems of seatbelt fit may be examined by planar development, since when the surface over which the seat-belt passes is developed, its path becomes a straight line. A simple geometrical representation of the occupant is suggested for use with such development methods, together with suitable dimensions representing 10th percentile female and 95th percentile male occupants. Criteria are given for determining whether the lie of the seatbelt is acceptable. The paper gives worked examples to illustrate the method, and an appendix contains a description of its mathematical basis.
The performance requirements for personal eye protectors are identified and discussed under the two headings of (a) the factors that influence wearer acceptance and (b) strength. The report suggests that, for day-long use, protection should be afforded by properly fitted, optically correct spectacles glazed with lenses of allyl resin or toughened glass. This is supplemented by the additional intermittent use of high-impact protectors for special operations. The bulk of the paper is devoted to an examination of the ways in which eye protector strengths are measured,
A s s i g n m e n t of f u n c t i o n s to men and m a c h i n e s
6.1.48 (,65037) Luria, ~1~1. el al Visior~through various Scuba facemasks. Naval Submarine Medical Research Laboratory, Groton Connecticut, USA. Medical Progress
6.1.51 (66211 ) Weltman, G. Experimental study of man-machine interaction in adaptive computer aided control. TRC Report No T74-04181 Nov, 1973, pp 56. Abstr in R and D Abstracts
Report No 14, Dec. 1972 21 pp. Abstr in Goverxtment Reports Announcements, (Report No. AD-763 395). The visual performance of divers was compared through five commercial facemasks. Measurements were made of visual fields, visual acuity, stereoacuity, hand-eye coordination, accuracy of distance estimates, and accuracy of size estimates at both near and far distances. In addition, the optical properties of the masks were measured and the susceptibility of each mask to fogging was tested, There were significant differences between the masks for every visual process tested. Some masks were superior for one purpose and inferior for another purpose, 6.1.49 (66183) Tobias, J.V. and Irons, F.M. Ear-protector ratings. Dec 1973, pp 18. Abstr in Government Reports Announcements (Report NoAI)-779 552/9GA) Twenty-one brands of ear protectors, including custom-moulded, wearermoulded, and pre-moulded types, were evaluated according to Americanstandard procedures. Earplugs are described and are listed in the order of their low-frequency (below 1000 Hz)
Shared decision making between human and intelligent machine has been gaining importance with the mounting response time requirements and complexity of advanced Navy systems. The present research is directed towards developing human factors criteria for such shared decision making and control, and towards evaluating techniques of task allocation, information feedback and operator selection and training. This report presents the background and results of an experimental study focusing on human factors aspects of adaptive computer aiding. Included are: A rationale for shared decision and control; A description of the adaptive aiding computer program and task simulation developed for the experimental study; The experimental design, procedure, and measurement techniques along with a discussion of the results;The development and testing of a program providing on-line estimation of operator utilities for his own and machine control. The experimental findings suggested t hat the important man]machine factors in adaptive computer control include + personnel selection and training and methods of automatic control allocation.
attenuation.
Trai n
6.1.50 (66192) Searle, J.A. The geometric basis of seat-belt fit Ergonomics May 1974, 1 7 . 3 , 4 0 1 - 4 1 6
6.1.52 (66227) Salvendy, G. and Seymour, N.D. Prediction and development of industrial work performance. John Wiley & Sons
52
Applied Ergonomics
March 1975
i ng
Inc., New York_ USA 1973. Abstr m AIIE Transactions Highlights include: t l t a detailed treatment of sensorimotor features in human performance and acquisition of accupationat skills +(2) an explanation of the analysis of skilled performance in occupational tasks, (3) numerous case studies of industrial training, (4) evaluation of on-going developments in personnel selection techniques.
Work organ isation 6.1.53 (64419. Heyde, G.C. Rest allowances Work Studv Management Services Nov, 1973.
17.11 790
I'he selection of appropriat e relaxation allowances is often a problem for work study practitioners. particularly if the work is heavy, or ~s carried out in unusual conditions. Though for many years the Bedaux tables and others derived from them have had great influence, their exacl derivation and authority has never been explained. As an alternative a new set of tables has been prepared b~ a group of researchers in Australia and currently is being prepared in a format designed for easy practical use and this will be published as soon as it is available. Meanwhile the method of derivation, based o n modern physiological theory and recen/ determinations, is presented for criticism and discussion. Simultaneously the Institute has sponsored similar research at Loughborough Universit y. The results of this research are now available and a summary will be published shortly.
6.1.54 t65051 Glickman, A.S., and Brown, Z. Changing schedules of work patterns and implications. American Institute for Research. Washington D.C.. Report No. R73- I. 1973. Abstr m Psychotogtcal Abstracts. Examines problems highlighted in the past few years by experiments with variants of a 4-day week and flexible working time with emphasis on issues, alternatives, and interactions involved in dealing with the problems that greater flexibility in the use of time creates. The study deals with the individual and organization behaviour side of the issues more than the economLc side. Data are reported on t a) available information and experience associated with administrative experiments for work +
It is proposed that problems of seatbelt fit may be examined by planar development, since when the surface over which the seat-belt passes is developed, its path becomes a straight line. A simple geometrical representation of the occupant is suggested for use with such development methods, together with suitable dimensions representing 10th percentile female and 95th percentile male occupants. Criteria are given for determining whether the lie of the seatbelt is acceptable. The paper gives worked examples to illustrate the method, and an appendix contains a description of its mathematical basis.
The performance requirements for personal eye protectors are identified and discussed under the two headings of (a) the factors that influence wearer acceptance and (b) strength. The report suggests that, for day-long use, protection should be afforded by properly fitted, optically correct spectacles glazed with lenses of allyl resin or toughened glass. This is supplemented by the additional intermittent use of high-impact protectors for special operations. The bulk of the paper is devoted to an examination of the ways in which eye protector strengths are measured,
A s s i g n m e n t of f u n c t i o n s to men and m a c h i n e s
6.1.48 (,65037) Luria, ~1~1. el al Visior~through various Scuba facemasks. Naval Submarine Medical Research Laboratory, Groton Connecticut, USA. Medical Progress
6.1.51 (66211 ) Weltman, G. Experimental study of man-machine interaction in adaptive computer aided control. TRC Report No T74-04181 Nov, 1973, pp 56. Abstr in R and D Abstracts
Report No 14, Dec. 1972 21 pp. Abstr in Goverxtment Reports Announcements, (Report No. AD-763 395). The visual performance of divers was compared through five commercial facemasks. Measurements were made of visual fields, visual acuity, stereoacuity, hand-eye coordination, accuracy of distance estimates, and accuracy of size estimates at both near and far distances. In addition, the optical properties of the masks were measured and the susceptibility of each mask to fogging was tested, There were significant differences between the masks for every visual process tested. Some masks were superior for one purpose and inferior for another purpose, 6.1.49 (66183) Tobias, J.V. and Irons, F.M. Ear-protector ratings. Dec 1973, pp 18. Abstr in Government Reports Announcements (Report NoAI)-779 552/9GA) Twenty-one brands of ear protectors, including custom-moulded, wearermoulded, and pre-moulded types, were evaluated according to Americanstandard procedures. Earplugs are described and are listed in the order of their low-frequency (below 1000 Hz)
Shared decision making between human and intelligent machine has been gaining importance with the mounting response time requirements and complexity of advanced Navy systems. The present research is directed towards developing human factors criteria for such shared decision making and control, and towards evaluating techniques of task allocation, information feedback and operator selection and training. This report presents the background and results of an experimental study focusing on human factors aspects of adaptive computer aiding. Included are: A rationale for shared decision and control; A description of the adaptive aiding computer program and task simulation developed for the experimental study; The experimental design, procedure, and measurement techniques along with a discussion of the results;The development and testing of a program providing on-line estimation of operator utilities for his own and machine control. The experimental findings suggested t hat the important man]machine factors in adaptive computer control include + personnel selection and training and methods of automatic control allocation.
attenuation.
Trai n
6.1.50 (66192) Searle, J.A. The geometric basis of seat-belt fit Ergonomics May 1974, 1 7 . 3 , 4 0 1 - 4 1 6
6.1.52 (66227) Salvendy, G. and Seymour, N.D. Prediction and development of industrial work performance. John Wiley & Sons
52
Applied Ergonomics
March 1975
i ng
Inc., New York_ USA 1973. Abstr m AIIE Transactions Highlights include: t l t a detailed treatment of sensorimotor features in human performance and acquisition of accupationat skills +(2) an explanation of the analysis of skilled performance in occupational tasks, (3) numerous case studies of industrial training, (4) evaluation of on-going developments in personnel selection techniques.
Work organ isation 6.1.53 (64419. Heyde, G.C. Rest allowances Work Studv Management Services Nov, 1973.
17.11 790
I'he selection of appropriat e relaxation allowances is often a problem for work study practitioners. particularly if the work is heavy, or ~s carried out in unusual conditions. Though for many years the Bedaux tables and others derived from them have had great influence, their exacl derivation and authority has never been explained. As an alternative a new set of tables has been prepared b~ a group of researchers in Australia and currently is being prepared in a format designed for easy practical use and this will be published as soon as it is available. Meanwhile the method of derivation, based o n modern physiological theory and recen/ determinations, is presented for criticism and discussion. Simultaneously the Institute has sponsored similar research at Loughborough Universit y. The results of this research are now available and a summary will be published shortly.
6.1.54 t65051 Glickman, A.S., and Brown, Z. Changing schedules of work patterns and implications. American Institute for Research. Washington D.C.. Report No. R73- I. 1973. Abstr m Psychotogtcal Abstracts. Examines problems highlighted in the past few years by experiments with variants of a 4-day week and flexible working time with emphasis on issues, alternatives, and interactions involved in dealing with the problems that greater flexibility in the use of time creates. The study deals with the individual and organization behaviour side of the issues more than the economLc side. Data are reported on t a) available information and experience associated with administrative experiments for work +