Browsing by Issue Date, starting with "2009-04-02"

Now showing 1 - 20 of 51007

Direct Synthesis of Zr-Doped Ceria Nanotubes
(2009-04-02)
Chen, Ying-Chen
;
Chen, Kuei-Bo
;
Lee, Chi-Shen
;
Lin, M. C.
;
應用化學系
Zr-doped ceria nanotuhes (Zr(x)Ce(1-x)O(2)) Were obtained in a high yield from a hydrothermal reaction in an aqueous solution of NaOH with Ce(NO(3))(3)center dot 6H(2)O and ZrO(2) powder in a small proportion. The morphology and crystalline structure were characterized with X-ray diffraction, a scanning electron microscope, and a transmission electron microscope. Mechanisms for the growth of Zr-doped ceria nanotubes are proposed based oil the Kirkendall effect, the formation of the tubular structure is strongly dependent oil the precursor. This is the first report of a direct synthesis of cerium-oxide nanotubes in high yield. The surface area of the nanotubes is 76 m/g and their average pore size is similar to 52.2 nm, Catalytic measurements show that the nanotubes as synthesized are active for an oxygen-storage capacity and for ethanol reforming.
POWER-RAIL ESD PROTECTION CIRCUIT WITHOUT LOCK-ON FAILURE
(2009-04-02)
Ker, Ming-Dou
;
Yen, Cheng-Cheng
;
Chen, Tung-Yang
An ESD protection circuit including a discharge device, a first detection circuit, and a second detection circuit. The discharge device provides a discharge path between a first power rail and a second power rail when the discharge device is activated. The discharge device stops providing the discharge path when the discharge device is de-activated. The first detection circuit is coupled between the first and the second power rails. The first detection circuit activates the discharge device when an ESD event occurs in the first power rail. The second detection circuit de-activates the discharge device when the ESD event does not occur in the first power rail.
Density Functional Studies of the Adsorption and Dissociation of NO(x) (x=1, 2) Molecules on the W(111) Surface
(2009-04-02)
Chen, Hsin-Tsung
;
Chen, Hui-Lung
;
Ju, Shin-Pon
;
Musaev, Djamaladdin G.
;
Lin, M. C.
Adsorption and dissociation of NOx (x = 1, 2) molecules on the W(111) surface have been investigated by using the density functional theory (DFT) with the projector-augmentcd wave (PAW) approach in periodic boundary conditions. The adsorption structures, vibrational frequencies, and binding energies of NO(2), NO, N, and 0 on the W(111) surface were predicted. It was shown that the most favorable adsorption geometry of W(111)/NO(2) is the WNO(2) (IV-mu(3)-N2, OI, OI) configuration with NO(2) at the 3-fold-shallow site of the surface and has an adsorption energy of 79.4 kcal/mol. For W(111)NO, WNO(II-mu(2)-N1, O1) with NO at the bridge site is energetically the most favorable one and has an adsorption energy of 74.4 kcal/mol. The N and 0 atoms are bound preferentially at the bridge and top sites, respectively. The potential energy profiles for the decomposition of NO(2) on W(111) were constructed using the nudged elastic band (NEB) method. The barriers for the stepwise NO(2)-deoxygenation process to N((ads)) + 20((ads)) are calculated to be only 0.5-3.7 (for the first step of the reaction, ON-O bond activation) and 0.2-3.0 (for the second step of the reaction, N-O bond activation of the coordinated NO molecule) kcal/mol, with an overall exothermicity of 177.0-185.2 kcal/mol. These findings show that NO,) can easily decompose on the W(111) surface. The rate constants for NO(2) and NO dissociation on the surface were also predicted.
バイオチップに利用される電源制御装置およびその操作方法
(2009-04-02)
呉重雨
;
林伯剛
;
林俐如
;
楊文嘉
;
萬▲じん▼
【課題】安全性を向上するとともに、出力効率を大幅に向上したバイオチップに利用される電源制御装置の提供。【解決手段】バイオチップはＭ個の区域を有しかつ各々の区域にはそれぞれ複数個の生物細胞を有する。前記電源制御装置はクロックジェネレータモジュールと、複合回路と、Ｍ個の制御モジュールとを有する。前記クロックジェネレータモジュールはクロック信号の発生に用いられる。前記複合回路は前記クロック信号を基に、Ｍ個の異なる位相を有する制御信号の発生に用いられる。前記Ｍ個の制御モジュールの中の第ｉの制御モジュールは第ｉの制御信号に応じて第ｉの区域の電源をオンあるいはオフするよう制御する。前記第ｉの区域の前記電源がオンの状態の時、前記第ｉの区域中のこの種の生物細胞がトリガーされる。この種の生物細胞は活動電位の不応期を有し、前記第ｉの区域の前記電源が対応するオン時間の間隔は前記活動電位の不応期より短い。【選択図】図１
Tunable interconnectivity of mesostructured cobalt oxide materials for sensing applications
(2009-04-02)
Liu, Chueh-Yang
;
Chen, Chia-Fu
;
Leu, Jih-Perng
;
材料科學與工程學系
;
Department of Materials Science and Engineering
A mesostructured cobalt oxide microsensor was fabricated using a template replication method under different hydrothermal treatments, and attempts were made to enhance the response of this gas sensor. To evaluate the sensing performance, the sensing materials were deposited via the dielectrophoresis (DEP) process, on micro-hot-plate platforms with interdigitated electrodes. The resistance changed when the carbon monoxide target gas was injected at the optimum temperature. The mesostructured cobalt oxide material with high hydrothermal treatment revealed the well-ordered domains, whereas with low hydrothermal treatment it did not contain ordered domains. Moreover, the cobalt oxide high hydrothermal material had 1.5 times the response to 70 ppm carbon monoxide as the low hydrothermal treatment sample. The unobstructed interconnectivity promotes gas diffusion and increases the active surface areas. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
Density Functional Studies of the Adsorption and Dissociation of NOx (x=1, 2) Molecules on the W(111) Surface
(2009-04-02)
Chen, Hsin-Tsung
;
Chen, Hui-Lung
;
Ju, Shin-Pon
;
Musaev, Djamaladdin G.
;
Lin, M. C.
Adsorption and dissociation of NOx (x = 1, 2) molecules on the W(111) surface have been investigated by using the density functional theory (DFT) with the projector-augmentcd wave (PAW) approach in periodic boundary conditions. The adsorption structures, vibrational frequencies, and binding energies of NO2, NO, N, and 0 on the W(111) surface were predicted. It was shown that the most favorable adsorption geometry of W(111)/NO2 is the WNO2 (IV-mu(3)-N2, OI, OI) configuration with NO2 at the 3-fold-shallow site of the surface and has an adsorption energy of 79.4 kcal/mol. For W(111)NO, WNO(II-mu(2)-N1, O1) with NO at the bridge site is energetically the most favorable one and has an adsorption energy of 74.4 kcal/mol. The N and 0 atoms are bound preferentially at the bridge and top sites, respectively. The potential energy profiles for the decomposition of NO2 on W(111) were constructed using the nudged elastic band (NEB) method. The barriers for the stepwise NO2-deoxygenation process to N-(ads) + 20((ads)) are calculated to be only 0.5-3.7 (for the first step of the reaction, ON-O bond activation) and 0.2-3.0 (for the second step of the reaction, N-O bond activation of the coordinated NO molecule) kcal/mol, with an overall exothermicity of 177.0-185.2 kcal/mol. These findings show that NO,) can easily decompose on the W(111) surface. The rate constants for NO2 and NO dissociation on the surface were also predicted.
《Blue In Love》
(2009-04-05)
葉曉昀
;
Department of Communication and Technology
;
傳播與科技學系
blue in love
椎名林擒演譯多變的華麗
(2009-04-05)
蔡尚翰
;
Department of Communication and Technology
;
傳播與科技學系
椎名林擒
《大囍事》電影與現實交錯　
(2009-04-05)
鄭秀芳
;
Department of Communication and Technology
;
傳播與科技學系
《大囍事》電影與現實交錯　
西方凝視下的印度意象
(2009-04-05)
陳怡秀
;
Department of Communication and Technology
;
傳播與科技學系
自二○○三年金磚四國(BRIC)的概念被提出後，作為其中一國的印度(India)，嶄露頭角的態勢遂勢不可檔。文化上有著悠久歷史，加上本身的神秘色彩使得印度受到各國的矚目，早在多年前便透過各種影像媒材出現在世界媒體平台之上。而透過傳播工具的進步與思想變遷，印度發展出更多元的意象，透過他者凝視的轉述與改編，有些呈現方式雖仍帶有極大成分的文化刻板印象，卻也為印度帶來了新的思考與審視。
愛日本學日語
(2009-04-05)
楊睿愷
;
Department of Communication and Technology
;
傳播與科技學系
探究日本文化與學日語之間的關聯性，並檢視台灣文化再現於流行文化中的可能性。
從蜘蛛人三部曲再看改編電影
(2009-04-05)
余建良
;
Department of Communication and Technology
;
傳播與科技學系
噗噗文章跟前一期主題有點關係 @.< 要下標可能有點麻煩，編輯可以稍微看一下前期內容再做決定寫的不是標準的影評，雖然提到電影內容但是就不放在影評裡面了，哈哈不好意思又改了 Q"Q 我回去想了又想，我原本以為介紹美漫大師很屌！但是我其實又跟本沒(辦法)採訪他...這樣的做法似乎不太好所以我退卻了... 總編輯大大們歹勢了 <(_ _)>
《絕命派對》挑戰國片新境界
(2009-04-05)
黃惠琳
;
Department of Communication and Technology
;
傳播與科技學系
無
總編輯的話
(2009-04-05)
張雅晴
;
Department of Communication and Technology
;
傳播與科技學系
總編輯的話
異國婚姻夢
(2009-04-05)
林潔
;
Department of Communication and Technology
;
傳播與科技學系
　　
一八九五　戰爭與淚水止步
(2009-04-05)
曾韋澐
;
Department of Communication and Technology
;
傳播與科技學系
1111
別叫我《喂，穿裙子的！》
(2009-04-05)
徐苾芬
;
Department of Communication and Technology
;
傳播與科技學系
兩性
Let's Go Dancing
(2009-04-05)
洪上筑
;
Department of Communication and Technology
;
傳播與科技學系
跳舞一直被視為一種次文化，但在這樣的環境中，台灣的街舞舞者們在台上依然揮灑著街舞精神，也許這並不只是跳舞而已，更是人生以及夢想的體驗。
Tastes of Drinks
(2009-04-05)
王成宇
;
Department of Communication and Technology
;
傳播與科技學系
三種曾經很喜歡喝的飲料
民工春運難上青天
(2009-04-05)
郭大齊
;
Department of Communication and Technology
;
傳播與科技學系
民工春運