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Volume 23, Issue 1
Displaying 1-6 of 6 articles from this issue
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Ikuo ITO, Kimiko FUJITA, Noriyoshi YONEHARA1987 Volume 23 Issue 1 Pages 1-6
Published: February 15, 1987
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSAn entropy model was applied as a method of evaluation of young women's preferences about fashions. The design pictures of clothes were presented to woman students, and they were demanded to reply their own preferences about those pictures and also demanded to mention the respective reasons freely. The results could be classified briefly into four factors those of “design”, “age”, “fashionability” and “body style” by which descriptions of picture were evaluated. Single factor entropy model and it's reverse model was applied for obtaining the mean latent values of student's preferences in each channel of factors. By means of those values and by the iterative calculations, multi-factors entropy model was solved and the ratios of four factors were obtained. In this experiment the factor of “design” occupied such a high level as 92 percent. It means that the almost of students selected the descriptions at the point of “design”. A questionnaire research about characters of recipients themselves was carried out at the same time, and the relative mapping had been made between characters of recipients and their preferred descriptions.View full abstractDownload PDF (587K) -
Akinori KOMATSUBARA, Katsumi HONDA, Yoshimi YOKOMIZO1987 Volume 23 Issue 1 Pages 7-14
Published: February 15, 1987
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSIn order to investigate the psychologicaly desirable environmental conditions of software offices, questionnaire surveys based on semantic differential analysis and investigation of environmental conditions were conducted at eleven actual software offices. Factor analysis of the questionnaire shows that two factors named “comfortability” and “concentration” are the important factors in both male and female software developers. Some factors are mixed in male but clearely separate in female. This shows that male evaluate the environment of software offices roughly but female minutely. The relation of factors and the actual environmental conditions of software offices shows that “privacy”, “trim”, “interior decoration”, “neatness” and “room for individual working zone” are the important conditions which affect the psychological evaluation of software offices.View full abstractDownload PDF (3783K) -
Takeo YUKIMACHI1987 Volume 23 Issue 1 Pages 15-23
Published: February 15, 1987
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSIn practical situations of the human reliability analysis, the basic error probabilities are sometimes multipled by a coefficient, called “modifier”, to reflect the effect of the given performance shaping factors. In this paper, we shall try an evaluation of modifier for the time margin when plant operators respond with adequacy to any abnormal event.
For this purpose, using the field data from American nuclear power plants, we obtain the distribution of the time spent to carry out the required task-procedure for the event, estimate the reliability of the task, and combining them by a simple formula concerning conditional probability, we drive the modifier by numerical calculation.
As a tentative result from similar trials for several cases, we obtained a relation between the time spent or the time margin for the required task and the modifier, which makes the guideline proposed by NUREG/CR-1278 in more detail.View full abstractDownload PDF (914K) -
Akinori KOMATSUBARA, Norio NAKAJIMA, Yoshimi YOKOMIZO1987 Volume 23 Issue 1 Pages 25-33
Published: February 15, 1987
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSIn order to make clear the conditions of operational easiness of Japanese word processors for the begineers, a series of experiment was conducted. Twelve female students of equal capability were employed as the subjects. Their learning processes of operation of “Romaji”, “Kana” and “PWP 100” Japanese word inputting systems based on Japanese pronunciation rule, and “HC 88” Japanese word inputting system based on Japanese grammertical rule were analyzed.
The results of factoral analysis of learning curves reveal that the learning process progresses in the order of “learning of keys arrangement”, “learning of inputting rules” and “learning of the details of the word processors”. The word inputting systems which require the specific inputting rules show the high miss rate and mental load. If the inputting rule is based on Japanese pronunciation rule, however, the miss rate and mental load are lower than those of not pronunciation rule. This result suggests that the inputting rule should be based on the Japanese pronunciation.View full abstractDownload PDF (878K) -
Seiichiro UENO1987 Volume 23 Issue 1 Pages 35-43
Published: February 15, 1987
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSFour circles of different sizes and a rectangular ground to arrange them in were prepared. 50 male and 50 female subjects were asked to place the eleven possible combinations of these circles in “well-balanced” arrangements within the rectangle. A numerical “unbalance value” was defined and based on it the degree of balance in arrangement of the circles was quantitatively calculated.
The results were as follows:
(1) The arrangements chosen by the subjects differed to some degree from the numerically calculated ideal (with unbalance value of zero).
(2) For each combination of circles, both the arranged positions of circles and the unbalance value obtaind for males and females differed considerably.View full abstractDownload PDF (888K) -
Kiyotoshi MATSUOKA1987 Volume 23 Issue 1 Pages 45-46
Published: February 15, 1987
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (200K)
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