All issues
Volume 16 (1980)
- Issue 6 Pages 285-
- Issue 5 Pages 221-
- Issue 4 Pages 169-
- Issue 3 Pages 99-
- Issue 2 Pages 45-
- Issue 1 Pages 1-
Volume 16, Issue 2
Displaying 1-9 of 9 articles from this issue
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Hisashi SAIKI1980 Volume 16 Issue 2 Pages 45-52
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
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Kazuyoshi YAJIMA1980 Volume 16 Issue 2 Pages 53-55
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (384K) -
Hideaki NAKAYAMA1980 Volume 16 Issue 2 Pages 57-62
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (841K) -
Hiromasa KITA1980 Volume 16 Issue 2 Pages 63-67
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSDownload PDF (666K) -
Shoji UNE1980 Volume 16 Issue 2 Pages 69-74
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSOn the ship control, the navigation officer as decision maker, observes the traffic situation with optimal view or uses the radar. Then, he orders the helmsman to keep a rudder angle or a course, who has to do it with using the informations of the course deviation and the rudder indicator.
In this paper the relation between the given information and the human performance in the course keeping is discussed.
The followings are research conclusions:
(1) Yaw rate meter is preferable to control the larger ship, (2) As the ship is larger, maximum compensating phase is larger with using the yaw rate meter, (3) The human operator cannot control the ship for long time when the noise is at high level, (4) Sea sight view is important for optimal control of the smaller ship.View full abstractDownload PDF (2324K) -
Takayuki HASHIMOTO, Hajime AKASHI1980 Volume 16 Issue 2 Pages 75-81
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSThis paper deals with the human operator's control behavior in the process. It is found that the sectional optimal control policy proposed in this paper can explain the human operator's control behavior. As the trial number is increased, the number of control stages in future which a human operator can consider increases. There is, however, an upper bound in his ability of considering the future state of the process. This result provides a counter example to the general understanding in existing literatures that a human operator optimizes the process over all the control stages.View full abstractDownload PDF (764K) -
In different types and levels of workHaruhiko SATO, Kazuhiko YAMASAKI, Akira YASUKOUCHI, Hajime HARADA1980 Volume 16 Issue 2 Pages 83-87
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
JOURNAL FREE ACCESSEach subject performed eight works by bicycle ergometer or treadmill. From data on oxygen uptake and heart rate during work and recovery, total oxygen cost and total cardiac cost above resting level were calculated on four male students. Total cost correlated closely with work performed in oxygen cost and cardiac cost. The relation of total oxygen cost to total cardiac cost was different between bicycle ergometer work and treadmill walk. Both in oxygen cost and in cardiac cost, linear relation was found between recovery cost above resting level and total cost irrespective of work type.
When it is difficult to record physiological reactions during work, recovery cost is sufficient to evaluate physiological cost of the work. In recovery cost above resting level, there are two problems, measurement of resting value and prolongation of measuring time during recovery period. The first three-minute recovery cost above zero correlated linearly with total cost both in oxygen cost and in cardiac cost irrespective of work type. The evaluation of physiological cost of work by the threeminute recovery cost above zero is considered to be practically useful.View full abstractDownload PDF (587K) -
1980 Volume 16 Issue 2 Pages 89-94
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
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Toshio ENDO1980 Volume 16 Issue 2 Pages 95-97
Published: April 15, 1980
Released on J-STAGE: March 11, 2010
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