高周期13族元素を骨格に含むベンゼン誘導体とその遷移金属錯体

【学位授与の要件】中央大学学位規則第4条第1項【論文審査委員主査】石井　洋一　（中央大学理工学部教授）【論文審査委員副査】福澤　信一（中央大学理工学部教授）、松永　真理子（中央大学理工学部准教授）、檜山　爲次郎（中央大学研究開発機構専任研究員（機構教授））、山下　誠（名古屋大学大学院工学研究科教授）、川島　隆幸（群馬大学大学院理工学府客員教授）博士（工学）中央大

Office employment growth analysis in the Boston metropolitan area, focusing on differences among industries

Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1997.Includes bibliographical references (leaves 101-102 ).by Taichi Nakamura.M.C.P

衛星による災害観測能力の総合的評価手法の提案とそれに基づくコンステレーション設計に関する研究

学位の種別: 論文博士審査委員会委員 : （主査）東京大学教授 中須賀 真一, 東京大学教授 岩崎 晃, 東京大学教授 土屋 武司, 東京大学准教授 船瀬 龍, 東京大学教授 六川 修一University of Tokyo(東京大学

Synthesis and characterization of conductive flexible cellulose carbon nanohorn sheets for human tissue applications

Background Conductive sheets of cellulose and carbon nanomaterials and its human skin applications are an interesting research aspect as they have potential for applications for skin compatibility. Hence it is needed to explore the effects and shed light on these applications. Method To fabricate wearable, portable, flexible, lightweight, inexpensive, and biocompatible composite materials, carbon nanohorns (CNHs) and hydroxyethylcellulose (HEC) were used as precursors to prepare CNH-HEC (Cnh-cel) composite sheets. Cnh-cel sheets were prepared with different loading concentrations of CNHs (10, 20 50,100mg) in 200mg cellulose. To fabricate the bio-compatible sheets, a pristine composite of CNHs and HEC was prepared without any pretreatment of the materials. Results The obtained sheets possess a conductivity of 1.83x10(-10)S/m and bio-compatible with human skin. Analysis for skin-compatibility was performed for Cnh-cel sheets by h-CLAT in vitro skin sensitization tests to evaluate the activation of THP-1 cells. It was found that THP-1 cells were not activated by Cnh-cel; hence Cnh-cel is a safe biomaterial for human skin. It was also found that the composite allowed only a maximum loading of 100mg to retain the consistent geometry of free-standing sheets of m thickness. Since CNHs have a unique arrangement of aggregates (dahlia structure), the composite is homogeneous, as verified by transmission electron microscopy (TEM) and, scanning electron microscopy (SEM), and other functional properties investigated by Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), conductivity measurement, tensile strength measurement, and skin sensitization. Conclusion It can be concluded that cellulose and CNHs sheets are conductive and compatible to human skin applications

Antarctic Circumpolar Current Fluctuation in the Late Neogene: constraint from sediment wave on the Conrad Rise, Indian Sector of the Southern Ocean

第3回極域科学シンポジウム　横断セッション「海・陸・氷床から探る後期新生代の南極寒冷圏環境変動」11月26日（月） 国立国語研究所 ２階講