フルディジタルコンポーネント映像システム、AES/EBUシリアル音声システム、新しい66倍ズームレンズ、整流負荷による波形歪を改善した発電機、ワンパッケージ型の空調機、ディジタルマトリックスを使用したインカム等、最新鋭の機器が搭載されており、その威力を運用に充分反映することができたので報告します。

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To observe earth potential difference (EPD) signals induced by seismic waves a modified measuring method has been operated continuously at Aobayama in Sendai. This method is successfuly used to reduce the unnecessary signals induced by artificial and natural earth current sources. We have also obtained seismic waveform records from Earthquake Observatory of Tohoku University which is located apart 700m from us. The earth potential difference signals and three signals of seismic wave (accelaration, velocity and displacement) of the Kobe earthquake are displayed. To analyze these complicated signals the spectrum transform have been performed and compared each others. A streaming potential model associated with earth accelaration is adopted to explain the induced earth potential difference signal. We estimate the ratio of the earth electric field (potential difference) to the pressure difference inside the ground. This ratio is reasonable on the assumpution of the streaming potential model.

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In this paper, a model on car evacuations and traffic jams in case of tsunamis is newly proposed and applied to the tsunami evacuation simulation in the case of Kesen-numa city when Tohoku - Pacific Ocean Earthquake Tsunami attacked. While walk evacuation simulations imply some inhabitants hard to escape only by walk, car evacuation calculations introducing the optimum velocity model represent the actual traffic jams recorded by the video images well. The testified causes of some bottlenecks on car evacuations such as narrow roads toward upland and restricted entrance to roof parking or the bridge can be sufficiently explained through the simulations, which reveal that success rate by car evacuation significantly changes according to driving unit number and are expected to apply to disaster prevention plans.

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仙台市科学館では，2023年度に古代の動物をテーマにした特別展を実施した。本稿では，今年度実施した特別展について報告する。

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仙台市科学館では，カムイサウルスの生きた時代とその世界をテーマに，恐竜最前線2024と題した特別展を実施した。本稿では，2024年度に実施した特別展について報告する。

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In 2011, the Great East Japan Earthquake and Tsunami took many lives and caused great damage. After the earthquake, various disaster reconstruction projects were conducted in the sports realm. The purpose of this study was to clarify the role of marathon events held as disaster reconstruction projects in the Tohoku area’s three prefectures (Iwate, Miyagi and Fukushima). Data were collected from informational media in terms of participants’comments and as an overview of each marathon event. Main results were as follows: 1) After the earthquake, the marathon event’s title changed to include “disaster reconstruction,” and programs increased. Furthermore, the event proceeded with fund-raising activities and field trips to the disaster area. 2) The number of marathon events increased. After the earthquake, marathon events characterized by “competition of orientation,” “region PR,” and “earthquake reconstruction” were held in three prefectures. 3) Comments related to “earthquake” and “reconstruction” in the disaster environment’s context were extracted from runners. Therefore, marathon events were disaster reconstruction projects with the role of transmitting, through participants and media, the afflicted area’s reconstruction situation to people inside and outside the three prefectures.

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2011年の東北地方太平洋沖地震により発生した大津波は，東北地方の太平洋沿岸部に大きな被害をもたらした．本研究の目的は，津波被害に着目し，被害を軽減する地域構造について検討することである．　本研究では，宮城県南三陸町を対象に，復興計画による地域構造について，防災性と生活面の視点から評価を行った．その結果，復興計画による地域構造は防災性を高める効果があるが，生活面では問題があることが明らかになった．また，集約型の地域構造により，問題を軽減できる可能性を示した．

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