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[[alternative]]Having Got into Difficulties, Figured out What to Do, and Made Adjustments: Experiences of a Novice at History Teaching
No full text[[abstract]]這是一篇歷史教學課堂的紀實，記錄著學生個體如何認識台灣史？如何表達？同時也是一個菜鳥老師對自己教學心路調整與發現。[[fileno]]204_JA04_2009_n20_p9
[[alternative]]A History Class which Can't See the "Trees" for the "Forest": Reflections on Our Teaching of Yugoslav Wars
No full text[[abstract]]我希望借用課程中巴爾幹半島的種族衝突為例，分析缺乏十九世紀背景的二十世紀歷史的教學問題和主題式教學的得失，亦探討我所採用的教學法的成效。[[fileno]]204_JA04_2012_n22_p2
Walking Tour
No full text97學年度〈版畫實驗〉課程國立清華大學圖書館紀念品─校長手稿藏書票比賽入選[[abstract]]生活即是學習，讀萬卷書，行萬里路。[[fileno]]208_SP01_2008_n1
增廣見聞
No full text97學年度〈版畫實驗〉課程國立清華大學圖書館紀念品─校長手稿藏書票比賽[[abstract]]整幅圖是由四種意象--增、廣、見、聞結集而成，正所謂欲窮千里目，更上一層樓，閱讀能讓視野開拓，智慧通明，渺小的身影变得宏偉巨大，創造立足高點，放眼萬水群山以及致知窮理的機會。[[fileno]]208_SP01_2008_n2
photosynthesis
No full text97學年度〈版畫實驗〉課程國立清華大學圖書館紀念品─校長手稿藏書票比賽[[abstract]]光合作用
葉子的光合作用，不僅提供了樹木所需的能量。並吸收了二氧化碳，釋放出氧氣。知識就像陽光，我們吸收知識，得到所需的力量，造福社會。[[fileno]]208_SP01_2008_n3
人文科學的邏輯
No full text97學年度〈版畫實驗〉課程國立清華大學圖書館紀念品─校長手稿藏書票比賽入選[[abstract]]常常在讀書時，像初生的嬰兒才正要張開眼睛領受浩瀚。所以設計了胚胎捲縮在開展的書頁下。開展的書頁則是試圖隱喻因為知識而我們也會遨翔。
甫入大學時，第一堂必修課選讀的書竟然是卡西勒的《 人文科學的邏輯》，對台灣大部份的高中生來說，這本書應該都太難了。三年後再翻本書，依稀知道教授掛在嘴邊的好書似乎有些道理，六年後再看，才終於知道『好』在哪。
也才明白，人文學科不是知識而是攸關生命經驗的涵養，容納各種差異矛盾、擴展各種情感面向，將之累積沉澱成一個『完整的人』，能夠接納自己的人。[[fileno]]208_SP01_2008_n3
雙螺旋
No full text97學年度〈版畫實驗〉課程國立清華大學圖書館紀念品─校長手稿藏書票比賽[[abstract]]閱讀較像身處雙螺旋中
我們在找書
書也在找我
等待著我們成為交點的那一刻
我們一直在彼此身旁
錯身而過
一直玩著捉迷藏
卻有種我們好近的感覺......
畫中以橙色為底
表示追尋的過程中並不是冷冰冰的
而是充滿著溫暖
一條暗色及一條亮色的線條代表著人與書
彼此糾結表現出數次錯身
引發惆悵之感[[fileno]]208_SP01_2008_n3
橋
No full text97學年度〈版畫實驗〉課程國立清華大學圖書館紀念品─校長手稿藏書票比賽入選[[abstract]]我本身很喜歡欣賞建築物，故想選擇有特色的大型設施作為我作品的主題，在這件作品中我以橋樑當作我的主題。我選擇橋樑是因為其以較不複雜的幾何形狀可讓人感覺到力量的存在，而橋樑的形式很多種，我選擇以斜張橋來呈現，這是因為斜張橋是以主要的幾個粗壯的結構和附在橋樑上的很多條鋼索組成的，此種形式的橋樑在外觀上呈現出簡單、優雅和力量，而且充分表現出線條本身所具的美感，再者，我覺得板畫以通板蝕刻所呈現出來的的效果很適合表現單純的線條，因為銅板的背景可以處理得很乾淨，而且線條可以很細，這是用橡膠板或是木板雕刻所無法呈現的。故我選擇斜張橋當作我的作品主題。[[fileno]]208_SP01_2008_n4
A cold pulsed source of hydrogen and hydrogen clusters: development and extreme-ultraviolet studies
No full text[[abstract]]We describe the development and application of a differentially pumped pulsed cold H(2) and (H(2))(2) beam source. The nozzle was cooled with liquid nitrogen and, actuated by a piezoelectric valve with pressures up to 5 bar, produced gas pulses 250 mu s long. Strong limitations by collisions with the fast hydrogen molecules returning from the walls of the source chamber could be overcome by surrounding the volume around nozzle and skimmer with cold surfaces. As a consequence, the beam intensities for both the monomer and the clusters could be greatly enhanced. The valve was operated without any realignment for more than one year. The beam source was characterized by a number of photo-ionization studies. As a part of these efforts the presumably first laser-based single-photon ionization spectra of H(2) and (H(2))(2) were obtained. We estimate that more than ten H(3)(+) ions could be detected per laser shot at a wavelength of 74.2 nm and a pressure of 5 bar. The auto-ionization lines of H(2) were recorded with a resolution of about 0.54 cm(-1). A line width of about 629 MHz was obtained in the B <- X band system of hydrogen observed by resonance-enhanced two-photon ionization. Further potential improvements of the experiment are discussed.[[fileno]]2030165010040[[department]]電機工程學
A new droop control method for the autonomous operation of distributed energy resource interface converters
No full text[[abstract]]Microgrid is widely accepted as an effective mean of integrating various distributed energy resources (DERs) through their interface converters to provide electric power of high quality and reliability. These distributed resources interface converters can operate in an autonomous fashion without any communication for enhanced system reliability and reduced complexity. Conventionally, the real power-frequency droop control and the reactive power-voltage magnitude droop are adopted as the decentralized control strategies in these DERs interface converters for the autonomous power sharing operations. However, the reactive power sharing of Q–V droop control often deteriorates due to its dependence on the line impedances. In this paper, a Q– ˙V droop control method with ˙V restoration mechanism is proposed to improve reactive power sharing. Its operation principle and control method are explained and analyzed. Simulation and experimental results are presented to validate the effectiveness of the proposed method.[[fileno]]2030140010034[[department]]電機工程學