In this study, we clarify the tendencies of two subject groups’ points of view and confirm the effects of these tendencies on the differences of evaluation before and after visiting to the tourist spots. As the results of the Chinese, the subjects who focused on the main sightseeing elements as the attractions of the tourist spots increased their evaluation after visiting. In contrast, the Japanese, who had a lot of knowledge about tourist spots, the subjects who focused on the relationships among the elements that were newly discovered at these opportunities, increased their evaluations after visiting.

The aim of this study is to clarify the effect of the mask wearing in evacuation shelter-analogue setting during summer season. A subject experiment was conducted to examine the effects of mask wearing on stress using electrocardiograph and environmental conditions. The subjects completed questionnaires regarding their thermal sensation, comfortability, fatigue, subjective sleepiness and “perceived difficulty breathing” consider the effect of mask wearing. Mask wearing increased “perceived difficulty breathing”, however there was no effect on the thermal sensation and comfort. Subjects who answered “comfortable” showed an increase in LF/HF with an increase in “perceived difficulty breathing”.

This study treats an influence of visual information to evaluation of loudness and annoyance of environmental noises through laboratory experiments. The investigation was made for road traffic, railway and aircraft noises, which have been traditionally discussed as typical environmental noise sources, and boat noise as a novel noise issue. As a result, visual information related to the noise sources worked as alleviating loudness and annoyance, and quantitatively the effects were 5 to 6 dB for road traffic and railway noises, 1 to 3 dB for aircraft noise and 3 to 4 dB for boat noise.

The purpose of this research is to examine the causal relationship on comprehensive impression evaluation based on the perceived spatial distribution of light. The evaluation grid method was conducted to derive a causal hypothesis on the evaluation of various lighting environments in living-dining rooms, followed by a subjective experiment in actual spaces to analyze the causal relationship between perception and impression through structural equation modeling. The results showed that “brightness” and “dimness” caused by the position of light in the space are perceived as spatial distribution, and “spaciousness” or “interest” with those balances leads to a “preferable” impression through “comfort”.

This paper examined the reduction of residual chlorine in apartment buildings for gravity tank systems.

1. It was clarified that the decrease in the residual chlorine concentration in the water tank has a great influence on the water temperature, water depth,initial residual chlorine concentration,and elapsed time.

2. It was clarified that factors affecting the reduction of residual chlorine in the pipe were the pipe diameter, water temperature,elapsed time and initial residual chlorine concentration.

Recently in Japan, the number of disasters causing power outages is increasing. Net zero energy house (ZEH) is getting attention as another strategy against power outages. This study’s purpose is to verify the feasibility of staying at ZEH during a power outage in winter. In this paper, the result of electricity supply and demand and the thermal environment in an experiment simulating power outage are described. In ZEH with BT 5.6 kWh, during power outages in winter, it was able to use AC, ventilation, lighting, heat pump water heater, home appliances without interrupting the power supply using autonomous operation.