Browsing by Issue Date, starting with "2008-12-16"

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Electronic relaxation and vibrational dynamics in a thiophene oligomer studied under the same experimental condition with a sub-5 fs laser
(2008-12-16)
Wang, Zhuan
;
Kobayashi, Takayoshi
;
電子物理學系
;
Department of Electrophysics
Using a sub-5 fs pulse laser, the pump-probe experiment was performed on a quinoid thiophene derivative and both electronic relaxation and vibrational dynamics were clarified with the same experimental data. From the data, two population decay times of the lowest electronic excited state were determined to be 200 fs and 1.8 ps, which can be explained by the assumption that the 2(1)A(g) state lies below the exciton 1(1)B(u) state together with the very low fluorescence quantum efficiency. The relaxation process after excitation by the pump pulse was studied to be 1(1)B(u) -> 1(1)B(u)* -> 2(1)A(g) -> 1(1)A(g). According to the experimental data, the location of the energy level was also discussed. The electronic dephasing time was determined to be 64 +/- 4 fs by utilizing the data in the 'negative time' range. The vibrational dephasing time constant of the most strongly coupled mode with frequency of 1466 cm(-1) was determined to be 520 +/- 20 fs from the widths of the corresponding Fourier power spectra.
採用低電壓元件之混合電壓石英振盪電路
(2008-12-16)
柯明道
;
廖宏泰
本發明揭露一種採用低電壓元件之混合電壓石英振盪電路。該混合電壓石英振盪電路包含一輸入接點、一輸出接點、一反相器、一N型電晶體及一P型電晶體。該輸入接點係用以接收一外部時脈信號。該反相器具有一輸入端和一輸出端。該N型電晶體之閘極係電連接至一參考電壓源,其汲極和源極則分別連接至該輸入接點及該反相器之輸入端。該P型電晶體之閘極係電連接至該反相器之輸出端,其汲極和源極則分別連接至該反相器之輸入端及該參考電壓源。該外部時脈信號之一高邏輯準位可高於該參考電壓源所提供之一參考電壓。
經典與大愛
(2008-12-16)
黃同弘
;
開放教育推動中心
;
Open Education Office
課程日期： 2008年12月16日(三) 演講人：黃同弘先生內容摘要：在本次演講中，黃主編以經典雜誌為例，介紹一份有理想的平面媒體的製作過程，從規劃、採訪、撰寫、編輯、印刷到出售的各種困難及問題，說明了經典雜誌對文化理想的堅持，也具體闡述了媒體的教育責任。內容：影音實況影音(*.flv檔)
一種利用奈米柱狀結構提升發光二極體光輸出效率之方法
(2008-12-16)
黃泓文
;
盧廷昌
;
邱清華
;
郭浩中
;
王興宗
本發明為一種利用光電化學(PEC)氧化技術形成具有奈米柱狀結構(Nano Rod)之發光二極體技術,首先在發光二極體的表面鍍上一層薄膜金屬層,經熱處理後形成金屬顆粒遮罩,進行蝕刻沒有遮罩保護的部分,再將金屬遮罩移除以形成奈米柱狀結構。接著將形成奈米柱狀結構的發光二極體進行光電化學氧化,即通過一定電壓並照射汞燈,故除正型半導體材料外,材料之表面積均可形成一氧化層,最後再鍍上金屬層,進行導通正型半導體材料以形成具有奈米柱狀結構之發光二極體。
柱状ナノ構造体（ナノロッド）を利用し発光ダイオード（ＬＥＤ）の発光効率を引き上げる方法
(2008-12-18)
黄泓文
;
盧廷昌
;
邱清華
;
郭浩中
;
王興宗
【課題】光電気化学（PHOTOELECTROCHEMICAL ,PEC)反応を利用して酸化反応を起こし、柱状ナノ構造体を有する発光ダイオード（ＬＥＤ）を形成する。【解決手段】発光ダイオード（ＬＥＤ）の表面に薄膜金属層をめっきし、それを熱処理した後で金属の顆粒でマスクを形成し、マスクで保護されていない部分にエッチング処理を施し、金属顆粒マスクを取り外して柱状ナノ構造体（ナノロッド）を形成し、続いて、柱状ナノ構造体（ナノロッド）が形成された発光ダイオード（ＬＥＤ）を光電気化学（PHOTOELECTROCHEMICAL ,PEC)反応を利用、それに一定の電流を流し、さらに水銀灯の光を照射し、P型半導体材料を除き、材料の表面積に酸化層１０６を形成し、最後に再度金属層１０７をめっきし、P型半導体材料を導通して、柱状ナノ構造体（ナノロッド）を有する発光ダイオード（ＬＥＤ）を形成する。【選択図】図１Ｆ
PHOSPHORS AND LIGHTING APPARATUS USING THE SAME
(2008-12-18)
CHEN, Teng-Ming
;
Chou, Yi-Chun
A phosphor has a chemical formula of: A(B1-mEum2+)PO4, wherein A is at least one of the group consisting of Li, Na and K, and B is at least one of the group consisting of Ca, Sr and Ba, and 0.0001≦m≦0.8.
Combined immunogene therapy of IL-6 and IL-15 enhances anti-tumor activity through augmented NK cytotoxicity
(2008-12-18)
Lin, Ching-Yi
;
Chuang, Tien-Fu
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Liao, Kuang-Wen
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Huang, Yi-Jun
;
Pai, Chien-Chun
Many tumors evade host immunity by lowering expression of major histocompatibility complex (MHC) molecules. Theoretically, low MHC expression should activate natural killer (NK) cells and in some cases suppress tumor growth; nevertheless, some tumors also produce high concentrations of immunosuppressive cytokines, such as transforming growth factor (TGF)-beta, to inhibit the activity of NK cells. Using a canine transmissible venereal tumor (CTVT) model, we have previously demonstrated that IL-6 is a strong antagonist for TGF-beta. Herein, we found that IL-6 alone was unable to significantly promote TGF-beta-inhibited NK activities. Conversely, IL-15 alone strongly promoted NK activities; however, NK activities were inhibited to baseline levels following the addition of TGF-beta. Therefore, a new strategy using combined immunogene therapy of both IL-6 and IL-15 mediated by electroporation was used in this study. This combined IL-6 and IL-15 treatment effectively relieved the inhibitory effect of TGF-beta and activated NK cell cytotoxicity of lymphokine-activated killer (LAK) cells. Similarly, in isolated DX5(+) NK cells, only IL-6 and IL-15 in combination significantly overcame the inhibitory effect of TGF-beta and promoted NK cytotoxicity. The group of BALB/c mice injected with plasmids with IL-6 and IL-15 genes (pIL-6/pIL-15) had the highest percentages of DX5(+) NK cells as compared with either the pIL-6 or pIL-15 groups. Further, in SCID mice inoculated with CTVT, electroporation-mediated delivery of pIL-6/pIL-15 was significantly more efficient in suppressing both tumor establishment and tumor growth as compared with pIL-6 or pIL-15 inoculation alone. In addition, the anti-asialo GM-1 antibody abolished NK activities in SCID mice and resulted in outgrowth of the tumors. Together, these results suggest that the TGF-beta-associated inhibition of NK cytotoxicity cannot be adequately restored by simply antagonizing TGF-beta with IL-6: the co-existence of NK activating factors such as IL-15 is also important in restoring TGF-beta-inhibited cytotoxicity. This study highlights the therapeutic potential of the pIL-6/pIL-15 combination by inhibiting TGF-beta activity and enhancing NK cytotoxicity. (c) 2008 Elsevier Ireland Ltd. All rights reserved.
THEORETICAL STUDIES OF ANHARMONIC EFFECT IN THE RICE RAMSPERGER KASSEL MARCUS THEORY
(2008-12-20)
Yao, L.
;
Liu, Y. L.
;
Lin, S. H.
;
應用化學系
;
Department of Applied Chemistry
The purpose of this paper is to propose a theoretical approach, which can evaluate anharmonic effects on the rate constants within the transition state theory. In treating unimolecular reactions under collision-free conditions by using the RRKM theory, we make use of the inverse Laplace transformation of the partition functions to obtain both the total number of states for the activated complex and density of states for the reactant with the Morse oscillator potential. To demonstrate the applications of our theoretical approach, we choose some model systems and a real reaction as examples.
客院大搬風
(2008-12-21)
王成宇
;
Department of Communication and Technology
;
傳播與科技學系
交大客院搬家啦
總編輯的話
(2008-12-21)
黃湘茹
;
Department of Communication and Technology
;
傳播與科技學系
.....
散場電影也散了傳統戲院
(2008-12-21)
陳怡秀
;
Department of Communication and Technology
;
傳播與科技學系
電影院
《大都會》
(2008-12-21)
何宛芯
;
Department of Communication and Technology
;
傳播與科技學系
大都會
看！我把演唱會「存檔」了
(2008-12-21)
徐苾芬
;
Department of Communication and Technology
;
傳播與科技學系
演唱會也是表演根據法律規定還有道德來說應該是不得攝影的但是現下幾乎所有開放式的演唱會都會有人帶著相機進入攝影大家也都司空見慣到底這樣的行為好或不好呢?
我，喜歡：「」不喜歡：「」
(2008-12-21)
羅佩雯
;
Department of Communication and Technology
;
傳播與科技學系
一種簡單的情緒，只有「喜歡」和「不喜歡」；任何事都有所謂一體兩面，用最直接了當的情緒思考，來斷定那到底是喜歡還是不喜歡？！很簡單的思想架構，只想表現自我單純和直線思考的一面。家庭、學校、球隊、愛情是目前自己的生活前四大排行重心，用最單純口語的呈現方式，足以表達我對這四大重心的重視和期待。原本想寫篇感謝文，但實在想不出該用什麼方式寫叫恰當；原因在於想的感謝人實在太多，怕漏掉一個，我都會良心不安。總之，這學期的電子報就快結束，我還有重大的社會議題要挑戰，就加油吧！
時代變遷中的城市─武漢
(2008-12-21)
郭大齊
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Department of Communication and Technology
;
傳播與科技學系
隨時代變革中的武漢
造垃圾吃垃圾樂活或垃活
(2008-12-21)
邵奕儒
;
Department of Communication and Technology
;
傳播與科技學系
10月多到現在終於結束了
學孕兼顧小權利看大問題
(2008-12-21)
曾韋澐
;
Department of Communication and Technology
;
傳播與科技學系
(編輯妳不滿意的話，可以幫我把大標改掉)
公會制度　安全不安全
(2008-12-21)
陳妙寧
;
Department of Communication and Technology
;
傳播與科技學系
網絡遊戲的公會制度會否因為相約的人數變多，是否會降低人們對於網絡交友的危機感？遊戲公會相約人數多真的會比單獨約出來安全嗎？
去除營利大學校園耶誕節
(2008-12-21)
林潔
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Department of Communication and Technology
;
傳播與科技學系
關於學校的耶誕節活動
思念是...
(2008-12-21)
梁素茵
;
Department of Communication and Technology
;
傳播與科技學系
心情故事