This study comprised a basic investigation on the derivation of formulas for calculating the weak-axis bending rigidity, first natural frequency, and driving-point impedance of anisotropic slabs. The resulting conclusions were as follows. 1) The formula for the weakaxis bending rigidity can be expressed in terms of mean rigidity based on the angle of rotation induced at different positions in the slab cross-section. 2) For the first natural frequency and the driving-point impedance, the formula can be expressed as a coordinate transformation of the equation for the free vibration of an anisotropic slab to the equation for that of an isotropic slab.

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The authors carried out measurements about the volume of water supply loads and the consumed amount of electric power by booster pump system in a super high-rise apartment house. On the basis of the results of measurements, the trend of fluctuation of water consumption and electric power were analyzed.
As for the estimation of suitable water supply loads, the authors applied the Monte Carlo simulation technique. In comparison with the results of simulation and the measurement data, the authors clarified that it was possible to estimate the volume of water supply loads by using the simulation method and suitable parameters.
As a result, the authors showed that it was possible to hold down the increase of the consumption of electric energy by using the suitable water supply system on the basis of the high accuracy for water supply demands estimation.

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Tajimi, a city located in Gifu Prefecture, experienced the record high temperature in Japan (40.9°C) on August 16, 2007. The problems associated with high temperatures in summer are very serious in the city. It is considered that various factors such as topographic basin effect and heat island around Nagoya affect high temperatures in Tajimi. However, each contribution of those factors is not clear enough. In this study, a sensitivity analysis of the factors in high temperatures in Tajimi for recent five years was conducted by using a regional atmospheric model, WRF (Weather Research and Forecasting). Here, we investigated the effects of urban heat islands in Tajimi and Nagoya and topographical effects on the thermal environment in Tajimi.

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In previous study, wind tunnel experiment for a real apartment complex was conducted to confirm the reproducibility of flow field with field measurement values. In this study, a wind tunnel experiment for the same complex was conducted to comprehend the behaviors of turbulence and mean characteristics of canyon vortices within real urban canyons. Mean flow field within the each canyon was the almost same flow motion which formed large canyon vortex. It was found that within the real canyon, the helical vortex generated by the flow from the side edge and the roof of the upstream building was formed. The detailed motion of the helical vortex is influenced by the building shapes, street width and positions of surrounding buildings.

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In case of terror attacks by biochemical material or accidental leakage of inflammable gas on an urban area, the time dependent aspect of transport of scalar becomes problem. However, there has been little speculation on unsteady emission directly related to time history. One of the way which count the problem is the concept of the ability of the ventilation (Purging Flow Rate), which includes the unit of time. This paper report the time spent for arrival of the concentration after the generation of tracer start and the time spent for decaying of the concentration after the generation of tracer end. The experiment was done in the wind tunnel whose wind profile is similar to the urban wind environment. Under the condition of dispersion in an atmosphere, the realization of each measurement shows different results because of the turbulence. The measurements were conducted for several times and the results will be shown with an ensemble averaged manner. The dependence of these time history to the inflow angle is discussed. The relation between these time history and the virtually calculated PFR is shown. As for the concentration fluctuation, the time development of the root mean square of concentration is also investigated.

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The national target for photovoltaic generation (PV) diffusion is 28GW by 2020 and 53GW by 2030. However, when the installed capacity of PV increased, some problems will occur in the distribution system because of reverse power flow. To cope with these problems, there has been growing interest in smart grid system. In this study, the electricity load curves of several districts are predicted with estimation of electricity generated by PV and electricity consumption in the future when energy saving technologies will be developed and diffused by a bottom-up simulation model of residential and commercial sectors. Not only regional difference in the electricity load curve, but also seasonal difference, difference between weekday and holiday, sunny day and cloudy day are discussed. Finally the effect of installation of storage battery is evaluated with these results.

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The study aimed to clarify LCA errors caused by mismatches in system boundaries of materials actually inputted and those of background database. In CO2 emissions from wooden housing materials in their manufacturing process, such mismatches were found in as many as 70% of the cases examined. By comparison with IDEA, similar emission compositions were obtained from AIJ-LCA database, verifying the latter's usefulness for overviewing emission characteristics. However, specific analyses showed occurrence of 0.5 - 2 times more errors in the 68% confidence interval if mismatched database figures used. The study suggested such database mismatches be carefully interpreted in LCA studies.

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The purpose of this study is to consider the effects of “wood workshop” on students majoring in architecture. “Mokusho-juku” is the craftsmanship activities using lumbers from thinning as an environmental education at forest. We conducted a questionnaire survey on the students who participated the “wood workshop”. The main results are as follows; 1）“Relation with people” was shown as the obtained value by the “wood workshop” besides “nature” and “woods”. 2）The “communication ability with people” was suggested to be necessary.

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