Ikusei Misaka

屋外空間の温熱環境と人の空間利用の関係を明らかにすることを目的として，温熱環境と人体生理・心理反応，滞在状況に関する調査を行った。調査結果から，暑熱対策による温熱快適性の向上と，心理申告から対策場所が涼しく，快適な空間と感じられていることを確認できた。空間の利用状況は，時間・場所で基準化した利用者数から評価を行った。基準化した利用者数と温熱快適性指標とに関係がみられることから，暑熱対策を行うことで利用者数の増加を推定できる可能性を示唆できた。さらに，数値解析と基準化利用者数を用いて，設計・計画段階で暑熱対策効果による利用者の増加について予測する手法について提案した。<br /> 論文の主要な部分を担当。

<p>Questionnaire survey results indicate that the high cognizance of bicycle users for electricity conservation is not reflected in their actual behaviors. A path-analysis model was prepared to assess bicycle user consciousness of electricity conservation and bicycle use. Results of covariance structure analysis revealed these two factors' mutual correlation. Our investigation demonstrated quantitatively that the environmental load reduction was achieved by the shift of transportation mode by motorists to mass transit (train, bus) users or bicycle users. Moreover, results demonstrate that if one who is not engaging in any environmental behavior does any familiar environmental activity, the greatest environmental load reduction can be attained through LED bulb use.</p>

暑熱環境下における熱中症リスクを評価する目的で、高齢者と若年者を対象とした被験者実験を行った。実験の結果、日向における深部体温や心拍数、体表面温度などで高齢者の方が若年層に比べて上昇する傾向が確認された。その要因としては、発汗量の違いが考えられ、高齢者の方が発汗が少ないことも確認できた。<br /> 実験と解析の主要な部分を担当

In order to select the effective technique as adaptation for urban heat island, we had measured the thermal environment of street space of Hirakata-City and Takatsuki-City in summer. From the results of measurement, thermal comfort index SET* of street space of those areas was higher than 35℃, and it is necessary to promote adaptation method from a viewpoint of the risk of heat stroke and use of the space. Then, it was inquired effective techniques as adaptation method, by the factors to make thermal environment which were obtained by measurement. At the experimental application of adaptation techniques, it is suggested a possibility to improve thermal environment of the street spaces.

In this paper, results are shown from micro-climatological observations performed in and around a largest green space in central Tokyo, &amp;ldquo;Imperial Palace&amp;rdquo;, during summer. Its area is 230ha, and it was once the Edo-Castle, then surrounded by a moat.&lt;br&gt;In a clear calm night, the cool air flows out from the Imperial Palace to the surrounding city area gravitationally. Different from the daytime advection by prevailing wind, the turbulent mixing is very weak in nighttime seeping phenomena because of the stable atmospheric condition. In the west side, the cool air flows over the valley of moat (20m depth) and spreads out into the built-up area. In the east side, cool air front sometimes penetrates the adjacent CBD area and reach near the Tokyo Station. The wide streets have a larger effect on cool air seeping than the moat dose even though water temperature is higher than ambient air temperature.

The authors performed the field measurements in the microclimate around the building that has the large stepped roof garden for three times. In this paper, the results of the last long time measurements are mainly presented, the aim of which is to grasp the occurrences of down stream along by the green slope due to the gravity flow at nighttime. From these measurements, following results are obtained. 1. In the calm night, the intermittent down stream with small turbulence was observed at the bottom of green slope. The duration of the down stream is about twenty to eighty minutes. 2. The ma...

都市高温化や地球温暖化の緩和を目指し、パッシブな空調システムや都市内の河川や緑地等の高温化緩和効果について、シミュレーションや実験・実測による定量化を行った。それらを活用し、都市･建物の設計･計画時における、効果的な対策検討や効果検証の手法をまとめた。

To promote so-called eco-design, a simulation system was developed primarily focusing on to estimate outdoor thermal environment as visual schemes. Holistic frame of the presented system consists of two parts. One is the heat balance analysis at various surfaces of ground or buildings, and the 3-dimentional fluid analysis is another. Those two phases for analysis are connected effectively and unilaterally, the former to the latter. This system was originally aimed at the practical use by designers and engineers to assist their works. That's why this system is fully conscious of Graphical User Interface, GUI. One of the specific features is that the system includes quite a few hydrothermal properties such as various natural coverings, artificial soil surface, and green-covered roof, which were obtained by a series of experiments and observations of authors.