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Volume 11 (1975)
- Issue 5-6 Pages 149-
- Issue 4 Pages 105-
- Issue 2-3 Pages 41-
- Issue 1 Pages 1-
Volume 11, Issue 1
Displaying 1-6 of 6 articles from this issue
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Mr. Nagamachi, G. ENOMOTO, K. ATSUBO1975 Volume 11 Issue 1 Pages 1-8
Published: February 15, 1975
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSRecently, the job design was tried in many enterprises in order to give workers the job satisfaction, but there remains obscure about what kinds of human factors in job yield the job satisfaction. The present paper is concerned with a simulation of job design to account for such human factors in job. We have had such findings that work with belt-conveyor gave workers unsatisfaction, and that group work without belt-conveyor resulted in high productivity as well as high job satisfaction.View full abstractDownload PDF (996K) -
T. Wake, Y. SHIMIZU, K. TAKEUCHI1975 Volume 11 Issue 1 Pages 9-15
Published: February 15, 1975
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThis paper is concerned with disability glare. A test flash was exposed for 200msec, a background or glare source were presented steadily, and the threshold vursus radiance curves were determined. According to concept of equivalent veiling luminance, degrees of disability glare is shown by the threshold vursus radiance curves. Two formulas which Holladay and Westheimer & Campbel proposed were examined from our data, and we showed that formula of Holladay is more excellent than that of Westheimer & Campbel. However, constant values of Holladay's formula do not agree under different conditions. Therefore, we proposed glaremeter that degrees of disability glare is easily measured. If we use this apparatus, subjective values will be obtained based on concept of equivalent veiling luminance.View full abstractDownload PDF (811K) -
K. Dai, E. Masuyama1975 Volume 11 Issue 1 Pages 17-22
Published: February 15, 1975
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSHelson's Adaptation-Level (AL) theory formulated the background-effects on judgment according to the notion of behavioral relativity. The purpos of this experimental study is to apply Helson's weighted geometric mean AL-model to the experiment of lifted weights by means of comparative judgment. A more general AL formula, a deduction from this AL formula to experimental model, and the method of estimating parameters by the method of least squares were stated.
The main results of this experiment were as follows;
(1) Agreement between theoretical AL-model and experimental data was excellent. AL theory gives a good account of comparative judgment data. Goodness of fit to the data of each subject is more excellent.
(2) There is a distinction between standard stimulus effects and anchor stimulus effects on judgment.
(3) Least squares estimate of relative weight of standard stimulus was 0.856. An individual effect constant affecting judgments was 139.8g.
(4) Legitimacy of logarithmic law as a psychophysical function seems to require further reexperimentation.View full abstractDownload PDF (748K) -
S. Yoshikawa, I. Kato1975 Volume 11 Issue 1 Pages 23-28
Published: February 15, 1975
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSWe made the test pieces out of visco-elastic polymer, similar to mechanical characteristics of human body surface. We picked up polyester resin, hardness of which was changed at will, and we got desirable test pieces. Two measuring instruments were made. One of them measures spring constant and damping constant of human body surface, another does mechanical impedance.
Concerning the former method, bellows controlled by air pressure push the point of human body and it records reactiue forces and displacement of the test pieces. Spring constant and damping constant are calculated from these recorded values. Concerning the latter, vibrometer are made putting speaker to good use, and mechanical impedance are measured from moving impedance of vibrometer.
However both methods are not satisfactory to measure the mechanical charactetistics of human body surface, therefore measuring method are discussed and the important problem are picked up for coming study.View full abstractDownload PDF (742K) -
T. Ema1975 Volume 11 Issue 1 Pages 29-35
Published: February 15, 1975
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThis report presents the results of a study of a pilot's ability to control an unstable second-order system without static stability. The experimental test to obtain the limit of pilot's capability in controlling the element by stick control are conducted. The experimental results thus obtained is used to suggest the theoretical controllability limit of the pilot. The behavor of the pilot is analyzed by use of bang-bang control system theory. The theoretical results are compared with experimental results, and then shows good insight into the controllability limit of human pilot.View full abstractDownload PDF (2243K) -
Inspection Research committee, Kanto Blanch of J.E1975 Volume 11 Issue 1 Pages 36-39
Published: February 15, 1975
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (558K)
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