京都大学 / 0048 / 新制・課程博士 / 博士(経済学) / 甲第21528号 / 経博第596号 / 新制||経||289(附属図書館) / 京都大学大学院経済学研究科経済学専攻 / (主査)教授 関口 格, 准教授 菊谷 達弥, 教授 小佐野 広 / 学位規則第4条第1項該当 / Doctor of Economics / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第21749号 / 工博第4566号 / 新制||工||1712(附属図書館) / 京都大学大学院工学研究科都市社会工学専攻 / (主査)教授 角 哲也, 教授 藤田 正治, 准教授 竹門 康弘 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第21768号 / 工博第4585号 / 新制||工||1714(附属図書館) / 京都大学大学院工学研究科材料工学専攻 / (主査)教授 乾 晴行, 教授 安田 秀幸, 教授 辻 伸泰 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

本論文では，鉄損算出精度向上を目的としたプレイモデルによるヒステリシス特性を考慮した磁界解析の実用化に向けて，ヒステリシスモデルのモデリング精度向上，計算機の記憶容量低減，有限要素磁界解析の計算時間削減に関する手法を提案した．さらに，ヒステリシス特性の考慮の有無が解析結果に与える影響を検討し，提案したヒステリシス特性を考慮した有限要素磁界解析の実用性を明らかにした． / In order to achieve the highly accurate analysis of an iron loss for electric machines, this paper proposes finite element magnetic field analyses taking account of the hysteretic property by using the play model. As a consequence, it is verified that the proposed method can accurately estimate an iron loss of a magnetic materials and decrease computational costs. Furthermore, this paper investigates the influence of the hysteretic property in finite element magnetic field analyses to demonstrate its effectiveness. / 博士(工学) / Doctor of Philosophy in Engineering / 同志社大学 / Doshisha University

京都大学 / 0048 / 新制・課程博士 / 博士(人間・環境学) / 甲第22899号 / 人博第968号 / 新制||人||229(附属図書館) / 2020||人博||968(吉田南総合図書館) / 京都大学大学院人間・環境学研究科共生文明学専攻 / (主査)教授 高妻 洋成, 准教授 馬場 基, 准教授 伊庭 千恵美 / 学位規則第4条第1項該当 / Doctor of Human and Environmental Studies / Kyoto University / DFAM

京都大学 / 新制・課程博士 / 博士(文学) / 甲第24957号 / 文博第927号 / 新制||文||734(附属図書館) / 京都大学大学院文学研究科文献文化学専攻 / (主査)教授 中村 唯史, 教授 家入 葉子, 准教授 堀口 大樹 / 学位規則第4条第1項該当 / Doctor of Letters / Kyoto University / DFAM

京都大学 / 新制・課程博士 / 博士(工学) / 甲第24224号 / 工博第5052号 / 新制||工||1789(附属図書館) / 京都大学大学院工学研究科建築学専攻 / (主査)教授 原田 和典, 教授 石田 泰一郎, 教授 小椋 大輔 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM

高齡化及少子化的人口結構改變帶來了龐大的銀髮商機，社會總體消費行為以及價值觀亦隨之轉變。惟銀髮市場並非同質性的，其中又以單身女性銀髮族的利基市場最有前景；然而國內鮮少針對特定銀髮族利基市場進行相關的消費者研究。目前對銀髮市場的開發多鎖定現今的銀髮族；然而未來20年將逐漸進入退休生活之40~60歲的族群，平均教育程度及經濟能力較現今的銀髮族為高，思想比上一代開明，加上近年來智慧科技的突飛猛進，其所想望的退休生活勢必與現今的銀髮族大為不同。 因此本研究鎖定此一族群高學歷、高所得、及高資歷的單身熟齡女性進行先驅調查。其思想開明、經濟獨立、可以自由運用時間及金錢、並且願意投資自己，具有很強的消費能力。企藉由了解目標族群的需求與期望，提前開發對應的潛在商機。 本研究先藉由文獻分析，分析目前的總體社會數據、人口結構改變、相關理論模型及市場現況；再採用個別深度訪談法了解每位受訪者的家庭狀況、生活型態、對於退休的想法等等。研究結果顯示受訪者可區隔成四個集群：主流且內向居家的小確幸、心理年輕最願意嘗新的探險家、關心社會注重品質的女鬥士、及控制慾強愛奢侈品的女領導。而受訪者對未來的想望已超越低階的生理及安全需求，而偏向於較高層次的社交、尊重及自我實現需求。 就實際需求面而言，可分成五大層面：健康美麗的緩老需求、安適終老的居住需求、經濟自主的理財需求、教育休閒的娛樂需求、及自我實現的價值需求。根據這五大需求，分別衍生出22項潛在商機，分屬醫療保健、智慧科技、居住交通、金融服務、生活支援及工作休閒等六大構面。 / The changing population structure caused by population aging and low fertility rate has created numerous opportunities for business targeting the elders, which also changes consumer behavior and values in the society. At the moment, the development of silver market mostly focuses on the elders today. However, the forty-to-sixty-year-olds who are going to be retiring in the next twenty years have higher educational background and economic power; moreover, they are more open-minded and have experienced the boost of modern technologies, which gives them much more different expectation for life in retirement than the elders today. Also, the silver market is not homogeneous, and the niche market for single elder women has the brightest prospect. Nevertheless, there is barely any consumer research for the elder niche markets in Taiwan. Therefore, this pioneer research targets at single mature females with high educational level, high income, and high qualifications. They are open-minded, financially independent, able to use their time freely, willing to invest in themselves; above all, they have strong consuming capacity. Through exploration of the expectation and demand of the target customers, the potential business opportunities can be uncovered. The research starts with literature review, analyzing the current social data, the change of population structure, relevant theoretical models, and the current market conditions. Then it adopts the method of individual in-depth interview to understand the family condition, life style, and ideas about retirement of every interviewee. The result of the research shows that the interviewees could be divided into four clusters: the small happiness holders with introverted housebound disposition, the adventurers who stay mentally young and love to try something new, the fighters who care about the society and life quality, and the leaders who love luxuries and to control everything. The interviewees’ expectations of future have already overpassed the most fundamental levels of needs: physiological and safety needs, and are inclined to higher levels needs: social, self-esteem, and self-actualization needs. There are five aspects regarding the practical demands: the ways to slow aging and keep health and beauty, a nice shelter to enjoy the comfortable retirement life, the finance-management to be financially independent, education and entertainment, and the chances of self-actualization. Twenty-two potential business opportunities can be derived from these demands, which respectively belong to the following six categories: medical and health care, intelligence technology, housing and transportation, financial service, living support, and work and entertainment.

本研究以2001年至2013年諾貝爾物理學獎得主之著作為研究樣本，比較八個商業資料庫(Scopus和Web of Science)與開放取用系統(搜尋引擎：Google Scholar、Microsoft Academic；匯集式機構典藏系統：OpenDOAR、OAIster；學科性開放取用系統：arXiv.org和Astrophysics Data System)，於物理學文獻收錄之正確性、完整性、重複性(包含內部重複與外部重複性)和獨特性，並評析各資料庫與系統之檢索功能、資料呈現等面向。期望能對圖書館資料庫選購以及使用者檢索資料庫與系統提供建議，並為各資料庫與系統之未來發展提出建議。 研究結果顯示：(一)諾貝爾物理學獎得主之個人著作揭露情形尚未普遍；(二)商業資料庫檢索功能較為多元，搜尋引擎容錯機制較強；(三)開放取用系統Astrophysics Data System和Microsoft Academic改版上線後，檢索功能Google化，重視全文鏈結、圖像化資訊呈現與語意網連結資訊；(四)各資料庫與系統普遍出現書目著錄格式不統一之問題，影響書目品質與檢索效率；(五)一般而言搜尋引擎資料完整性高於商業資料庫，商業資料庫高於機構典藏系統，但學科性開放取用系統Astrophysics Data System之資料收錄完整性僅低於Google Scholar；(六) arXiv內部重複性最低，Google Scholar和OpenDOAR內部重複性最高；(七)開放取用系統彼此重複性高，且與搜尋引擎Google Scholar和Astrophysics Data System重複性達100%。由於各資料庫與系統之收錄範圍各不相同，不同資料庫與系統亦提供不同的功能，使用者應依個人資訊需求與目的選擇資料庫與系統使用，如欲檢索物理學文獻，使用搜尋引擎與開放取用系統Astrophysics Data System可獲得較完整之文獻：若使用者欲取得引文分析之相關資訊，則以選擇商業資料庫Scopus和Web of Science為佳，亦可選擇Astrophysics Data System。 / In this study, scholarly communication system of commercial services and open access will be examined through comprehensiveness, overlap and database variation of coverage via field operations of commercial citation index databases (Web of Science and Scopus) and open access citation system (search engine: Google Scholar and Microsoft Academic; disciplinary of physics: arXiv.org and Astrophysics Data System; prestigious institutional repository: OAIster and OpenDOAR). Retrievals will be conducted in the two commercial databases, two search engines, and four open access systems stated above to analyze and compare their retrieval interfaces, and evaluations of each system will be made as well according to presentation and output of retrieval results. Noble laureates in physics sciences from 2001 to 2013 are selected as samples in this study. Records of their publications over time will be retrieved and downloaded from each system, and a computer program will be developed to perform the analytical tasks of sorting, comparison, elimination, aggregation and statistics. Bibliographic records retrieved from the two databases and six systems will undertake quantitative analyses and cross references to determine the comprehensiveness and uniqueness of their system coverage. The results of the study may provide better references for libraries to acquire citation index databases, to build institutional repositories, or to create citation index systems on their own in the future. Suggestions on indices and tools for academic assessment will be presented based on the comprehensiveness assessment of each system as well.

本研究重點欲探討時下人人皆有的心理狀態「寂寞感」、「交友軟體的使用動機」與「自我揭露」行為之間的關係、而「交友軟體品質特性」又如何調節影響「交友軟體使用動機」與「自我揭露」行為。本研究採取網路問卷調查的方式，對於交友App有使用經驗的使用者為主要調查對象，共計307有效問卷進行分析。本研究主要發現如下： 1.本研究的受試者以男性、年齡18-25歲、學歷以大專院校者為最多，感情狀況以未婚族群最多，但是還是有非單身甚至已婚交友用戶；使用交友軟體的時間大多兩年之內，平均下載2.66個交友App軟體，其中最常使用的交友App軟體為Beetalk。受試者平均每週上交友軟體的天數為5.07天，每週花費5.43小時。另外，高達94.1%的受試者曾經在交友App平台上與陌生人進一步用其他通訊軟體、社群媒體互動，並有88.9%的受試者曾約現實碰面。 2.寂寞感程度可顯著的正向預測交友軟體使用動機中的日常社交、社會逃避以及尋愛之三個構面。 3.寂寞感程度可顯著的正向預測自我揭露中的誠實度、數量以及正負向之三個構面。 4.關於交友軟體使用動機(日常社交、社會逃避、尋愛)與自我揭露(誠實度、數量、正負向)之間的關係：交友軟體使用動機中日常社交、社會逃避與尋愛之三個構面皆可顯著預測自我揭露中的誠實度：當日常社交和社會逃避動機越高時，自我揭露中的誠實度越高；但是當尋愛動機越高時，自我揭露中的誠實度越低。交友使用動機中日常社交和尋愛之二個構面皆可顯著預測自我揭露中的數量：當日常社交動機越高時，自我揭露中的數量越高；但當尋愛動機越高時，自我揭露中的數量越低。交友使用動機中日常社交之構面可顯著正向預測自我揭露中的正負向。 5.交友軟體品質特性(使用者介面、安全性、形象聲譽、會員素質、尋愛達成率)對交友軟體使用動機與自我揭露的調節效果中，僅只有尋愛達成率對交友軟體使用動機和自我揭露產生調節效果。 6.交友軟體使用動機中僅有日常社交之構面對於寂寞感程度與自我揭露有中介效果。 / The purpose of this study is to explore how “loneliness” which is widely prevalent throughout the society affects the motives of using online dating applications and the behavior of self-disclosure. Furthermore, how the quality of online dating apps operates in between the motives of using online dating apps and the behavior of self- disclosure. Online survey was conducted and 307 respondents completed the questionnaire. The research results are presented as follow: 1.Most of the respondents in the study are male, aged from 18 to 25, graduated from college and are currently single. Still, there are some of them in a relationship and even married. Subjects mostly have been used the dating apps less than 2 years, and averagely downloaded 2.66 dating apps. Furthermore, the most popular dating apps is Beetalk. Respondents use dating apps 5.07 days a week and 5.43 hours a week in average. Besides, there are 94.1% of the respondents have used other social media or social apps to communicate with other users they met in dating apps and 88.9% of the respondents have actually met up in real life. 2.Different degree of loneliness have statistically significant and positive predictable effect on the motives of using online dating apps including “Daily Social Needs”, “Escape to Virtual World”, and “Romance”. 3.Different degree of loneliness have statistically significant and positive predictable effect on the different aspects of self-disclosure including: Honesty, Quantity, and Positivity. 4.The motives of using online dating apps including “Daily Social Needs”, “Escape to Virtual World”, “Romance” have statistically significant and predictable effect on the honesty of self-disclosure. “Daily Social Needs” and “Romance” of motives have significant and predicable effect on the quantity of self-disclosure. Only “Daily social needs” have statistically significant and predictable effect on the positivity of self-disclosure. 5.Only the quality of “Love Achievement Rate” of online dating apps have operation effects in between the motives of using online dating apps and the behavior of self- disclosure. 6.Only “Daily social needs” of motives of using online dating apps have mediation effects between loneliness and the behavior of self disclosure.