[in Japanese]

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In this paper, the human operator's learning processes are classified into the learning-memorizing process and the learning process, in accordance with whether the random appearing forcing function is the same on each trial or not, respectively. Under this classification, the transitions of the operator's model parameters in the two processes are analyzed and compared. The model is composed of gain, time-delay, neuromuscular lag and first order lead and lag. The model parameters are found to vary between the learning-memorizing process and the learning process, with the input bandwith and with the operator's practice. Some of these results are compared with those of the cross-over model. Furthermore, the accuracy of the proposed model is substantiated by checking the agreement between the model output and the operator's output by the correlation coefficient and the power ratio.

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The investigation of human sensibility to vibration was conducted by a semantic differential method to clarify the relation between the vibration magnitude of a ship and human sensibility.
VL is the most suitable vibration magnitude for the vibration sensibility rating. The weighted overall vibration measurement method is superior to the Octave band boundary evaluation method in sensibility rating. VL is the physical amount of the vibration that is equivalent to the sound level in dB (A) in terms of the sound, and its a dB value that is indicated through the network VL with a frequency response according to the weighting curve proposed by ISO.
The relationship of the vibration level VL and the cartegory stage are as given below.
“Indifferent” “Somewhat” “Considerably” “Very”
VL (standing posture) 17dB 23dB 29dB 35dB
VL (laying posture) 11 17 23 29

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The characteristics of human voluntary movements with and without visual input were examined. A man was instructed to write a circle of arbitrary size, and subsequently to write the circle of the same size with eye closed condition. As a result, the size of the she second circle written with eye closed was always smaller than that of the first circle with eye open. This phenomenon was generally seen not only in the handwriting but also in other voluntary movements using hand or foot.
We can summarize the present results on the properties of human voluntary movements as follows: The magnitude of human voluntary movements depends on the velocity of the motion at that time. A periodic time of a motion is kept constant and is not a function of the velocity or amplitude of the motion. From the above view, we assume the existence of the internal “clock” which acts to regulate his own motion.

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In this report, we introduced a structure of passage-system for dealing with pedestrian's flow in passage synthetically.
Then, we conducted a simple questionnairing on basis of our structure and examined how far the actual state of pedestrians could be grasped.
Especially, on two factors (i. e. “expective speed” and “irritation”), we tried to express them in mathematical formula.
For lack of physical data and sufficient scaling to subjects' responses, we couldn't get a precise conclusions. However, we think that we could decide on our future course of study.

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