English

That study aims at improving thermal comfort in the carriage of a new developed high-speed train. To figure out the air distribution pattern a CFD method is used and a prototype experiment validates the method.

In this paper, a theoretical analysis is performed to analyze the effective air exchange rate by fluctuating flow for natural ventilation. A simple model is proposed for the analysis.

This paper puts emphasis on the analysis of air mass flux on natural ventilation in tiered-seating classrooms.Some suggestions are proposed about architectural desing of teaching buildings that may improve the natural ventilation.

The population epidemic investigation method was used for that study in order to investigate the relationship between human uncomfortable feeling symptoms and indoor air conditioning thermal environment. Results are presented.

For that study field VOC measurements were conducted in 20 natioanl hospitals in Japan. Passive samplers were used. Results are presented .

This paper describes an investigation of the indoor environment in Dutch daycare centers. Air temperature and CO2 levels measurements were made during summer and winter in 14 centers.. Results and recommendations are presented.

For that study, indoor air pollutants including CO2, CO, MP10, PM2.5 and volatile compounds were measured in four hot spring hotels, (the results are presented.

The investigation and analysis of indoor environment condition of high and middle grade office building is presented in this paper, along with the results

1 group of 25 persons performed simulated office work for 2 hours in poor environmental conditions with overhead fluorescent lighting, traffic noise, hot temperature, supply air polluted, almost no daylight, and open office noise.The cost to improve each condition was estimated and expressed as a percentage of the total sumA second group experienced all the different conditions and selected the improvements they preferred, up to 50%-budget.Another group was exposed to 100 %-budget conditions. Results and conclusions are presented.

The authors have reviewed the literature on the effects of indoor environment on health and performance. And with the existing data have developed some initial models. They show the various relationships between :- ventilation rate and short term sick leave, - ventilation rate and work performance, - perceived air quality and performance, - temperature and performance- temperature and sick building syndrome symptomsand also between SBS-symptoms and work performance.