In this study, questionnaire-based survey was conducted for younger adults (n=108) on factors influencing the evacuation behavior in case of leakage of toxic gas. In addition, the means of transportation and informative way were investigated for effective evacuation guidance. Impeding factors for evacuation were then extracted through factor analysis. As a result, the five factors are labeled as follows: 1) environmental, 2) fear, 3) knowledge, 4) anxious about evacuation, 5) contents of information. The survey also revealed that automobile & motorcycle and TV & radio are considered to be the most suitable as the means of transportation and the informative way respectively.

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We suggested the named new production system called "a small NC machine for the purpose of the construction" of "Tabletop Size of the Factory". We study the downsizing of the machine to improve productivity in a mass productions product such as motor parts. Many problems are thought about for the realization of the automation line by the downsizing of the machine. In this study, we consider the control of the C-axis and the rigidity of the spindle to keep downsizing and the processing precision of the NC machine tool. As a result of experiment of the downsizing of the main shaft, we confirmed that we could cope with the processing of motor parts. I confirmed that you must push forward the construction of the line including assembling and the inspection in future.

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Erosion damage have been a serious prob1em in many industries, then there are many reports for homogeneous materia1s but not for composites. Wind power, as an alternative to burning fossil fuels, is plentiful, renewable, clean, and produces no greenhouse gas emissions during operation. On the blade of wind power, the damage of the impact of particles, sand erosion, was found. So, in the case of off-shore wind power, rain erosion is considered to be occurred on the blade of off-shore wind power plant. So in this study, the rain erosion tester was made to examine the rain erosion behavior of FRP. In many cases, for the improvement of erosion resistance, the coating film was performed on the blade of wind power plant. So, in this study, test pieces with coating film were made and erosion resistance of coating paint film was investigated by performing a rain erosion experiment. After experiments, damaged surfaces were observed and erosion resistance of coating paint film was discussed.

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Carbon nanotube (CNT) was synthesized during combustion in a diesel engine by using two types of biodiesel, fatty acid methyl ester and long chain alcohol, as main fuel. Ethanol which is also known as biomass-derived material was blended with main fuel. Ferrocene as a catalyst source for CNT growth and molybdenum/sulfur as a promoter were added into mixed fuel. CNTs produced were assessed mainly by scanning electron microscope and transmission electron microscope whether CNT was really synthesized or not. Gas compositions like O₂, CO, CO₂ and low-molecular weight hydrocarbons of an exhaust from an engine were examined by gas chromatograph. As a comparative study, experiments using n-dodecane as main fuel which is not biomass-derived fuel were carried out. Obtained results indicated that biodiesel had a propensity to produce larger CO amount which led to larger CNT production than that produced from ndodecane based fuel even at a low ethanol fraction in fuel.

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Thermochemical energy storage is a promising technology for storage and output of heat. Some thermochemical energy storages use reversible gas-solid reaction to transform thermal energy into chemical energy which could be stored semi-permanently. The thermochemical energy storage using calcium oxide and water system was focused on in this study. Storage materials of powder of calcium hydroxide or calcium oxide have small practical feasibility because of its aggregation and activity degradation during repetitive operation in a packed bed reactor, so that solidification of powder material or composites are required for practical realization of the reactor. This paper presents experimental results of heat storage performance of around 60 g of calcium hydroxide pellets. Heat storage performances of heat storage density, heat storage and output rate are evaluated by a packed bed reactor. The amount of storage energy per unit volume of material bed was 1.0 MJ/L-material and average heat storage and output rate until 60% reaction conversion per unit volume of material bed was 0.21 and 0.50 kW/L-material, respectively.

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Calcium chloride / water (CaCl₂/H₂O) thermochemical energy storage system was studied for effective utilization of surplus heat of about 100℃ discharged from factory processes and internal combustion engines. CaCl₂ has low thermal conductivity, and its particles tends to aggregate together and to be reduced its reactivity during cyclic operation. Then, CaCl₂ particle composite material (ECL) mixed with expanded graphite was developed for enhancement of its thermal conductivity and cyclic durability. The hydration (heat output operation) performance of ECL was demonstrated by a packed bed reactor having heat exchanging function under water vapor pressures and cyclic operation. The heat storage performance of ECL and its durability were shown.

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