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Integration of x-rays and visible light toward innovative applications
No full textText会議発表論文 / Conference PaperThe synergistic combination of X-rays and optical light can overcome their respective limitations, opening new avenues for smart manufacturing at nanometric scales. This paper presents a "smart manufacturing" concept that utilizes multicolor irradiation with ultrafast X-ray and optical lasers to surpass the long-standing 100-nm barrier. We discuss theoretical results showing that X-ray pre-ionization significantly enhances optical absorption in materials such as silicon. Additionally, we report experimental progress at the Kansai Institute for Photon Science (KPSI), including the development of a 100 TW-class driver laser, an extreme ultraviolet high-harmonic generation source delivering ~2 nJ pulses, and a plasma-based soft X-ray laser producing ~500 nJ at 18.9 nm. These advancements offer essential tools for advancing this integrated approach to next-generation precision processing.Copyright 2025 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.conference pape
Ethnic Resources and Local Revitalization: Focusing on "Multicultural Coexistence" and "Community Building"
Get PDFtext紀要論文 / Departmental Bulletin PaperThis study aims to understand how local revitalization can be promoted through relying on ethnic resources in present-day Japanese society. First, we examine the requirements for promoting local revitalization, relying on ethnic resources from two perspectives: growth of ethnic businesses and plurality of positions involved in local revitalization. Next, a trial analysis of several case studies in Japan is conducted, focusing on the Shin-Okubo area of Shinjuku Ward in Tokyo, Osaka Korea Town in Ikuno Ward in Osaka City, Oizumi Town in Gunma Prefecture, and Tsurumi Ward in Yokohama City in Kanagawa Prefecture. The findings identified were as follows: First, local revitalization requires not just reliance on ethnic resources and activities of ethnic minorities but also the involvement of ethnic majority groups and the local government. However, "who" provides the resources and activities and "which" ones are effective vary by region, and it is necessary to explore how these work in a mutually complementary way. Second, local revitalization in Japan is promoted by the connection between "multicultural coexistence (Tabunkakyosei )" and "community building (Machizukuri )," two different concepts often linked by a rise in commercialism in the context of competition between cities. However, this connection does not necessarily show the same pattern, differing from region to region based on the multiple actors involved. Therefore, the possible issues of "what elements" are selectively extracted from "multicultural coexistence" and "what members" share this as "community building" need to be addressed in future research through related discussions, as the tentative examination conducted in this study allow following the changes in economic activities of ethnic minorities in Japan and capture "local revitalization" in more detail in a multicultural context.departmental bulletin pape
The Power of Blackness: The Significance of Objects in Moby-Dick
Get PDFtext紀要論文 / Departmental Bulletin PaperThis paper explores how colors and objects are associated symbolically in Herman Melvilleʼs Moby-Dick (1851). Frist, it shows how Melville deconstructs the conventional dichotomy of black and white as evil and good. Second, it discusses what the objects of certain colors signify in this novel by employing Gaston Bachelardʼs theory of lʼimagination matérielle (material imagination) for analysis. Finally, it focuses on "Epilogue," the last chapter in Moby-Dick and examines how the black objects---the bubble and the coffin-life-buoy---evoke the image of Ishmaelʼs rebirth.departmental bulletin pape
'Lecture III: Practical Perspective', A Lecture by J. M. W. Turner: Translation
Get PDFtext紀要論文 / Departmental Bulletin PaperThis is a translation of a manuscript written by Joseph Mallord William Turner [1775-1851], an eminent British landscape painter, for his lecture as a professor of perspective given for the Royal Academy of Arts in London in the 1810s. The original manuscript is now in the collection of the British Museum, London. [Add. MSS. 46151-F]departmental bulletin pape
