The measurement of human motion was usually described as point or line connected points. In order to evaluate space needs, however, understanding the volume of movement is effective rather than analyzing the locus of point or angle index. Then, in this study, the system which describe motion as outline was developed by processing video picture with computer. And the proper space needs in toilet was investigated using this system. As a result, by comparing the motion in non-wall condition with the motion in wall set condition, the proper space needs in toilet was elucidated.

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This paper deals with the human operator's learning process on a manual tracking control system, from the relation between the grasp of the reference signal and the change of the control operation, by the repeat of the trial. The reference signal was divided from the point whose velocity or acceleration indicated zero. On each region of the divided reference signal, the change tendencies of the performance score were examined. As a result, in the reference regions having the characteristic shape of the time series, it was observed that the performance score decreased as the exponential function, and that the control performance improved in both directions of the time axis. From the analysis of the control operation, it was shown that the changes of the control operation shape were related to the reinforcement of the grasp of the reference signal. Therefore, it was supposed that the improvements of the control performance in the opposite direction and orderly one of the time axis were caused by the precognitive control behavior and the developing of the grasp of the reference signal, respectively. It was suggested that the characteristic shape in the reference signal had the possibility to become one factor that participated in the forming of the human operator's learning characteristics.

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To design and evaluate products and systems, it is very important to consider human satisfaction. However such methodology has neither been studied at all, nor paid any attention so far. Hence we kept our eyes on human satisfaction and have researched with psychological and physiological approaches to establish a method for measuring satisfaction. In this paper, psychological and physiological measurements were taken as a basic study. In psychological measurements, multiple mood scales composed of eight feelings were conducted on 253 students after the imagination of pleasure in making to obtain a measure to evaluate subjective satisfaction. The results showed that subjective satisfaction is high pleasant and medium arousal level and closely relate to liveliness and friendliness of eight feelings. In physiological measurements, electroencephalogram (EEG) on the forehead was measured from bipolar derivation when subjects were resting with eyes open and were working at four cases. The results of Fast Fourier Transforms showed that relative power of α band has a positive correlation with subjective satisfaction, while that of β band has a negative correlation. The results of this study revealed the possibility of satisfaction measurement.

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Pilot Induced Oscillation (PIO) was observed in the pilot control of the aircraft during some missions-landing and tochdown, up and away flight. This is considered the phenomenon of PIO is caused by the interference of pilot control and output of aircraft dynamic response. Therefor, the problems are found not only characteristics of the aircraft dynamic response but also pilot's manipulation to control the aircraft at the mission.
In this paper, it is shown the PIO have notable for bandwidth ω_BW≤1 (rad/s) of the closed loop and for such a condition of the system a lowering of the pilot gain and a leading of the phase lag is good method to suppress of the PIO tendency in manual control system.

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The audio signals used in electric home appliances currently available on the market were recorded to identify suitable signals for the hearing ability of older adults. The results of the analysis indicated the following three problems: (1) Some appliances use high-frequency tones around 4000Hz. Since these sounds are hard for older adults with presbycusis to hear, it would be better to use signals with lower frequencies. However, the problem here is that if the frequency is lowered, then the signal might be masked by domestic sounds whose power would be greater relative to the low-frequency signals. (2) The signals used by some appliances are too soft. The intensity of some signals should be adjusted to compensate for the hearing loss among older adults. (3) The sounds used in these appliances are often very similar in terms of both timbre and temporal ringing patterns. This may cause confusion because it is difficult to identify which appliance is signaling.

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