5 research outputs found
Scalable, Highly Pure, and Diameter‐Sorted Boron Nitride Nanotube by Aqueous Polymer Two‐Phase Extraction
No full textBoron nitride nanotube (BNNT) has attracted recent attention owing to its exceptional material properties; yet, practical implementation in real-life applications has been elusive, mainly due to the purity issues associated with its large-scale synthesis. Although different purification methods have been discussed so far, there lacks a scalable solution method in the community. In this work, a simple, high-throughput, and scalable purification of BNNT is reported via modification of an established sorting technique, aqueous polymer two-phase extraction. A complete partition mapping of the boron nitride species is established, which enables the segregation of the highly pure BNNT with a major impurity removal efficiency of > 98%. A successful scaling up of the process is illustrated and provides solid evidence of its diameter sorting behavior. Last, towards its macroscopic assemblies, a liquid crystal of the purified BNNT is demonstrated. The effort toward large-scale solution purification of BNNT is believed to contribute significantly to the macroscopic realization of its exceptional properties in the near future.
Namdang Han Wonjin's Sim-ui Bok-geon (attired m formal Confucian dress) Portrait
No full text韓元震(1682-1751)은 本貫이 淸州, 字가 德昭, 號가 南塘으로 漢陽의 於義洞 外家에서 태어났다. 그러나 8세부터 祖父를 따라 충청도의 結成(現 洪城)으로 내려가 南塘理 와 暘谷理 에 거주한 채 성리학 연구에 전념하며 당대의 지식인에게 주어진 역사적 과제를 해결하기 위한 철학적 기초를 확립하는 일에 평생을 바쳤다. 특히 독학으로 經學에 몰두하다가 21세 되던 1702년에 栗谷 李珥(1536-1584)와 沙溪 金長生(1548-1631), 尤庵 宋時烈(1607-1689)로 이어진 畿湖 性理學의 嫡傳이 바로 遂菴 權尙夏(1641-1721)에 있음을 알고는 黃 江 의 寒水齊로 찾아가 강론을 들은 뒤 정식 제자가 됨으로써 기호성리학의 嫡傳을 이은 湖學의 宗匠이 되었다.Namdang Han Wonjin is the savant of Hohak (the school of Chungcheong-do Province) which genuinely inherited Noo-Confucianism of Giho (Chungcheong-do Province), the leader of the in-law government of the late Joseon period Han emphasized Hua-Yi distinction (Sino-barbarian dichotomy) and Cheoksa (the theory of rejecting heterodoxy) in particular. His ideology spreaded throughout Hongju culture area (South Western Chungcheong-do Province), and it had a great influence on the development of the Wijung Cheoksa (defending orthodoxy and rejecting heterodoxy) movement and the emergence of the righteous armies, or Uibyeong since the late 19th century, when the imperialist pillage moved into high gear with the western powers occupying Asia and forcing to open ports. As Han's works on Neo-Confucianism affected the late Joseon period, Han's portrait is also noteworthy in that it delineates how Sim-ui Bok-geon (attired in formal Confucian dress, with a top for exalted personage and a fmmal bandana) portrait - 1he most beloved form of Yuhyeon (eminent Confuscian scholar) portraits, including those of Song Siyeol and Gwon Sangha – was inhetited and proliferated since Neo-Confucianism became indigenous in the late Joseon er
Budo or sport?: competing conceptions of Kendo within the Japanese upper secondary physical education curriculum
No full textKendo is one of the Japanese martial arts (Budo). Kendo within the Physical Education( PE) curriculum
at upper secondary schools is taught with the aim of learning the traditional etiquette of Budo, to learn
skills and to lay the foundation for lifelong sports participation. The Japanese Ministry of Education,
Science and Culture expects school Kendo teachers to achieve these aims within a child-centred approach,
not in a traditional drill-type approach to teaching.
This thesis aims to explore school Kendo teachers'views of Kendo within the PE curriculum as sport and /
or as Budo, and the teaching of tactics and strategies in their Kendo lessons. It also attempts to develop
and present a new approach to the teaching of Kendo making use of tactical and strategic ideas.
The thesis IS multi-layered in methodological terms. The research was conducted by the use of two
rounds of semi-structured interviews with seventeen and then fifty-three upper secondary school Kendo
teachers respectively. The final phase of the research was a practical action research project carried out in
a Japanese Secondary School. A range of methods was employed, comprising: participative observation,
documentary analyses, a written test and a skill-related test.
The data from the interviews revealed that school Kendo teachers wish to have their lessons aimed at
character building such as learning the traditional etiquette by following the traditional approach to Kendo
as Budo. The results of the interviews also revealed that most teachers were reluctant to teach sport
tactics as it was counter to the dominant ideology of Budo as "real Kendo". These teachers believe that
teaching tactics was inconsistent with the traditional etiquette of fighting fairly, and that would only help
pupils to understand "Kendo as a competitive sport" as opposed to "real Kendo" as Budo.
The results of the action research at an upper secondary school in Fukuoka Prefecture show that pupils
developed their skills and understanding of competitive, cultural and attitudinal domains of Kendo as Budo
through a tactical approach. They also expressed pleasure in this planning and execution of their own
learning goals. I conclude, then, that the tactical approach to the teaching of Kendo can be incorporated
into the PE curriculum without compromising the essential philosophy of Kendo as Budo
Multifunctional nanoparticles as a tissue adhesive and an injectable marker for image-guided procedures
No full textTissue adhesives have emerged as an alternative to sutures and staples for wound closure and reconnection of injured tissues after surgery or trauma. Owing to their convenience and effectiveness, these adhesives have received growing attention particularly in minimally invasive procedures. For safe and accurate applications, tissue adhesives should be detectable via clinical imaging modalities and be highly biocompatible for intracorporeal procedures. However, few adhesives meet all these requirements. Herein, we show that biocompatible tantalum oxide/silica core/shell nanoparticles (TSNs) exhibit not only high contrast effects for real-time imaging but also strong adhesive properties. Furthermore, the biocompatible TSNs cause much less cellular toxicity and less inflammation than a clinically used, imageable tissue adhesive (that is, a mixture of cyanoacrylate and Lipiodol). Because of their multifunctional imaging and adhesive property, the TSNs are successfully applied as a hemostatic adhesive for minimally invasive procedures and as an immobilized marker for image-guided procedures. © The Author(s) 20174
Investigation of the Independent Photo-Voltaic LED Illuminated System
No full text 隨著人類文明發展愈來愈高，對於能源的仰賴亦愈來愈大，而現代經濟的發展規模，完全取決於能源的使用與運用技術的進步。而近幾年來，由於能源的短缺與環保意識的抬頭，漸漸加快了再生能源研究的腳步。利用太陽能電池發電，配合以節能為特點的LED，合併應用為獨立型照明系統，不但電力自給自足、降低維修成本，並且還可增強夜間照明的續航力。
本研究之第一部分即利用獨立型太陽能LED照明系統來做長時間測試，藉由實驗數據的分析，進而改善系統的效能及穩定度。而在實驗數據的分析方面，除了將長時間測試的結果做一整理討論以外，更提出天候對於系統蓄電效率之影響，而為了增進系統的蓄電效率，本研究也提出了幾項改善的方法。若欲使系統的照度進一步提升，勢必要使用更高功率的LED，隨著功率的提升，散熱量的需求也隨之增加。於是本研究之第二部分即利用理論分析的模式，針對熱沉計算出其各部位的結構以及幾何形狀大小分別對於整體熱傳性能有何影響，而藉由改變熱沉參數，求得一修改後設計，將此設計結果與原設計相比較，於256W加熱功率下，熱沉熱阻可下降約0.1oC/W。 As the better human civilization developed, the much dependence on resource of energy increased. The progression of present economic is completely in accordance to the utilities of energies and advance of technologies. In the recent years, the deficiency of energy and appearance of eco-awareness fasten the researches for renewable energy. Using solar cell to generate electricity and combining with LED which is characterized by saving energy to be an independent Illuminated System, which could not only support self-sufficient power and lower maintenance costs but also extend the time of night lighting.
The first part of this research is the long-term experiment in an independent Photo-Voltaic LED illuminated System. The author dedicates to improve the efficiency and stability of the system experimentally. The results of the long-term test are evaluated. Besides, the weather effects on charging efficiency are also presented. In order to promote the charging efficiency of system, this study proposes some reform methods recommended. The system should employ high powered LED to achieve high luminance. Thus, the requirement of cooling will be raised as well. Therefore, the second part of this research is based on theoretical analysis to evaluate the influences of heat sink geometrical parameter on the thermal capacity. This study presents a set of geometrical parameters which could achieve a lower 0.1oC/W of heat sink resistance at 256W than the original design.致謝 I
摘要 II
ABSTRACT III
目錄 IV
圖目錄 VII
表目錄 IX
符號說明 X
第一章 緒論 1
1-1 前言 1
1-2 研究動機與目的 4
1-3 文獻回顧 5
1-4 研究方法 9
第二章 獨立型太陽能LED照明系統之性能分析 10
2-1 太陽能電池基本理論與特性 10
2-1.1 太陽能光電轉換原理與特性曲線 10
2-1.2 太陽能電池特性方程式 11
2-2 實驗設備與研究方法 16
2-2.1 實驗設備 16
2-2.2 實驗系統 17
2-2.3 實驗方法 19
2-3 實驗結果與討論 22
2-3.1 天候對於系統蓄電效率之影響 22
2-3.2 長期測試之數據分析－蓄電方面 24
2-3.3 長期測試之數據分析－放電方面 25
2-3.4 LED照明系統之照度 25
2-3.5 LED照明系統之熱傳性能與熱阻之基本定義 26
2-4 蓄電效率之增進 42
2-4.1 選用適當的太陽能電池 42
2-4.2 選用適當的蓄電池 42
2-4.3 加設適當的電阻 43
第三章 LED散熱模組之熱傳性能分析 50
3-1 LED散熱模組案例分析 50
3-2 蒸氣腔體基本理論 52
3-2.1 蒸氣腔體操作原理 52
3-2.2 工作流體在孔隙間的流動 53
3-2.3 多孔隙表面沸騰機制 56
3-2.4 多孔隙結構等效熱傳導係數 59
3-2.5 蒸氣腔體之操作限制 61
3-3 熱阻分析模式 66
3-3.1 界面熱阻 66
3-3.2 蒸氣腔體熱阻 68
3-3.3 熱沉熱阻 69
3-4 增進熱沉熱傳性能之設計 77
3-4.1 改變鰭片參數 78
3-4.2 增加蒸氣腔體數目 79
第四章 結論與建議 84
4-1 結論 84
4-2 建議 87
參考文獻 8
