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Volume 31, Issue 2
Displaying 1-12 of 12 articles from this issue
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Yoshiaki WATANABE1995 Volume 31 Issue 2 Pages 97-100
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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Mitsuo TORII, Tetsuya YASUNAGA, Masaaki URANO, Fumio TAKESHIGE, Yasuhi ...1995 Volume 31 Issue 2 Pages 101-104
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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Masato HOTTA1995 Volume 31 Issue 2 Pages 105-109
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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Dai KADOWAKI, Hiroshi KANEKO1995 Volume 31 Issue 2 Pages 111-114
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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Toshihiko MIHARA, Haruo KOSASA, Toshio TANIGUCHI, Takeo SHIBAHARA1995 Volume 31 Issue 2 Pages 115-117
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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Rinzo EBUKURO1995 Volume 31 Issue 2 Pages 119-130
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThis study proposes a new evaluation method for utterance-listening system performances verifying the effectiveness of an application of the disparity method to acquire one of the basic methods for the word intelligibility study from an engineer's view point.
The effectiveness of the disparity method was inspected to answer the following questions; (1) How to analyze and evaluate the utterances and the listenings by the disparity method? (2) Can the errors be compared with machine recognition performances? and how to describe the differences between the machine recognition, utterances, and listenings? (3) How to describe similar word pair characteristics by the method in the case of human performances? (4) How to describe and evaluate individual performances from an engineer's view point.
Erroneous utterances were picked up from recorded data, and erroneously written down words obtained from dictation were picked up from the word lists for the disparity calculation. The solution on all items of the questions listed above were given by the disparity method. Thus the effectiveness of the disparity method for the evaluation of human utterance-listening system was confirmed through the survey. This study might only be monochromatic survey while the human behavior is colorful in their daily aspects. It must be emphasized that further interdisciplinary cooperation for finding out the systematic method not only for the word intelligibility study but the aural communication study.View full abstractDownload PDF (1535K) -
Development of the structure of a worker's consciousness during the acquiring processKazuo MORI, Yasuyuki KIKUCHI1995 Volume 31 Issue 2 Pages 131-139
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe purpose of this research is to clarify the structure of self-evaluation and consciousness in the acquiring process of a skill. The skill chosen for the research is the electronic device soldering skill. The cycle-time of this skill is short. As the test subjects, 43 trainees at the training center were selected. The trainees received six hours and 30 minutes of training daily for five consecutive days. Every day, after completing the day's assignment, the trainees filled in a check list. The list consisted of ietms on self-evaluation and working consciousness to be rated. These data was put through multi-valuate analysis using the cluster analysis method.
The analysis revealed that the worker's consciousness developed in conformance with the following steps. The 1st step: Grasp of relation between worker's movements and work results, The 2nd step: Grasp of work principle of the skill (fundamental background), The 3rd step: Solution of technical issues to be solved, The 4th step: Solution of issues in productive management. This result supports the hypothesis that there is a similarity in the structural development process in the acquiring of a skill in a short term training and in a long term training.View full abstractDownload PDF (1143K) -
Masafumi IDE, Kaoru FUJIIE, Kenji MITARAI, Kenji KUROSU1995 Volume 31 Issue 2 Pages 141-149
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThis report deals with cervical injuries who suffer from spasms and paralysis of extremities. Their ability to manipulate a computer screen pointing device was studied. The subjects attempted to aim the pointing device, a single-speed floating action joystick, so that the cursor overlapped the target provided on CRT display. Their ability was examined at eight cursor speed levels within two subject groups; eight cervical injuries and three abled persons.
The subject's total operating time was comprised of reaction time, approaching time to target, adjusting time near target with detailed behavior, and switching time. Similar operational time patterns for cursor speed were observed in both groups. At the adjusting operation on high speed level, inching operation were repeated. Inching operation times consisted of inching ON-time and OFF-time. The subject's ON-times converged near the controllable minimum. The ON-times of the cervical injury group were longer than those of abled person. OFF-times were longer than ON-times, with a positively skewed distribution. The OFF-time distribution was also wider for the cervical injury group.View full abstractDownload PDF (5534K) -
Satoru SHIBATA, Hikaru INOOKA1995 Volume 31 Issue 2 Pages 151-159
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSIt is expected that robots play an important role coexisting with a human in a hospital, at home, and so on. In such a case, a robot motion is required to be human-friendly.
In this paper, human arm motions are simulated using both computer graphics and an industry robot under various velocity patterns, and evaluated to examine which factor is essential for human-likeness. The results are summarized as follows. First, the velocity peak position in the normalized duration of the motion is important for the emotion of human-likeness. Second, the maximum value of the velocity effects human impression of the motion. There exists the appropriate maximum value which gives a subject the emotion of human-likeness best. Finally, the emotion of human-likeness is related to that of comfort. These results are almost the same for both a simulated motion on CRT and a robot motion.View full abstractDownload PDF (1076K) -
Human influence of the temperature and the air flow in the summerHikaru ENOMOTO, Hiroko KUBO, Norio ISODA, Takuko YANASE1995 Volume 31 Issue 2 Pages 161-168
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThe purpose of this study is to clarify the characteristics of the thermal-physiological and psychological reactions in old people at the summer indoor climate, and to study the influences of the reactions by aging level. The experiments are conducted in a climate chamber, using 19 to 80-year-old male and female subjects wearing summer cloths (0.4clo) sit on a chair for 80 minutes including 60 minutes of air flow exposure. The combination of ambient temperatures and air velocities used are 28°C and 0.4m/s, 32°C and 1.2m/s, respectively. At the same environment, the mean skin temperatures of old subjects (over 60 years old) are lower than those of young (under 40 years old) and middle aged (from 40 to 60 years old) subjects in mean average of 0.2-0.8°C. The old subjects feel cooler and more comfortable than young or middle aged subjects. The drop in skin temperature of the chest becomes greater with advancing age. On the contrary, at the shin the drop becomes smaller. This indicates that the old people decrease in ability to control the skin temperature of cutaneous vasoconstriction of their extremities.View full abstractDownload PDF (2522K) -
Masaharu KUMASHIRO1995 Volume 31 Issue 2 Pages 169-170
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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Kazuo AOKI1995 Volume 31 Issue 2 Pages 171
Published: April 15, 1995
Released on J-STAGE: March 11, 2010
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