EVALUATION OF CRUSTAL STRUCTURE AND BEDROCK TOPOGRAPHY AROUND MIZUHO PLATEAU, ANTARCTICA, BASED ON GRAVITY DATA

For the last three decades, gravity surveys around Syowa Station have been conducted by the Japanese Antarctic Research Expedition (JARE). Especially, in the vicinity of Mizuho Plateau, gravity data made it possible to analyze three-dimensional subsurface structures. The data have revealed several contradictions between gravity anomaly and ice thickness measured by radio echo sounding. To explain ice thickness data and gravity anomaly-bedrock height relations without any contradiction, about 5g/cm^3 of bedrock density is required. This high density is quite unnatural. In this study, the authors tried to construct the three-dimensional bedrock topography and shape of the Moho discontinuity by using gravity anomaly data. Through the analysis, we clarified the characteristics of the contradictions and found that ice thickness determined by radio echo soundings is always smaller than the actual thickness by a constant factor. Possible explanations are : 1) radio echo sounding detects an intra-ice discontinuity due to moraine and/or climatic change origin; 2) error of radio wave velocity due to variation of the estimated dielectric constant. This conclusion could explain theoretically the greatest part of the unnatural relationship between gravity anomaly and bedrock topography

An Engineer\u27s Role in the Recommendation of a Self-sustaining Study

At Chubu University, one of the core universities for advancing ESD (Education for Sustainable Development), we are conducting education and research in an effort to achieve ESD. Also, we are trying to make an original <theory of sustainable development< for the benefit of those who live in the Chubu area. In this paper we will describe the <Special Task Program< and its results at Chubu University. The Program is designed for students at the university, who are expected to act not by words but by deeds, and to live for the realization of a sustainable society

九州大学附属図書館におけるCute.Catalogのデザインと開発 : OPACからディスカバリ・インターフェースへ

次世代OPAC は，表紙画像やフォーマット等のビジュアル化，内容・目次など豊富な情報の提供，適合度によるソート，絞り込み検索，スペルチェック／サジェスト機能，ユーザー参加型機能など，ユーザー目線のインターフェースにより注目を集めてきた。また最近では，従来からの冊子資料に加え電子ジャーナルや電子ブックなどe リソースへのアクセス，機関リポジトリやデジタル化したコンテンツ等，図書館が提供する多様なコンテンツを集約し，それらの検索機能を提供することから，海外を中心にディスカバリ・インターフェースと呼ばれ始めている。九州大学附属図書 館では，海外のオープンソース・ソフトウェアであるeXtensible Catalog（XC）によってディスカバリ・インターフェースCute.Catalog の導入を実現し，2010 年4 月に試験公開した。本稿では，XC 選定までの過程とXC ソフトウェアの概 要について説明するとともに，本学での導入プロセスや課題の解決，そして今後の展望について紹介する。Next-generation library catalogs have been developed, focusing on user-oriented features such as visually enriched displays, relevancy ranked results, faceted navigations, search-term recommendations, and other social features. Nowadays, the term “discovery interfaces” is gradually emerging to describe these new products by their broader integration of library resources beyond printed collections; including electric resources, institutional repositories, and digitalized materials. In April 2010, Kyushu University Library introduced a test version of the discovery interface named Cute.Catalog, using eXtensible Catalog (XC), an open source software. In this article, firstly our decision making to implement the best discovery interface for us will be introduced. Secondly, the features of XC software suite and its developing procedure in our library will be described, showing how we solved problems we have faced. At last, future possibilities will be discussed