Browsing by Issue Date, starting with "2010-05-06"

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Method of alignments of liquid crystal employing magnetic thin films
(2010-05-06)
Chao, Ru-Pin
;
Wu, Hsin-Ying
Alignments of liquid crystal are obtained. A transparent magnetic thin film provides a homeotropic alignment of liquid crystal molecules. Or, a homeotropic or homogeneous alignment having an adjustable pretilt angle is further obtained through rubbing the transparent magnetic thin film. The present invention has a simple procedure with a low cost. The present invention is used in equipment with a plasma source while providing high transmittance, hardness and insulation. And the transparent magnetic thin film has potential uses in the applications of non-contact multi-domain alignment without extra procedure for alignment treatment.
Shock Tube Study on the Thermal Decomposition of CH3OH
(2010-05-06)
Lu, Ku-We
;
Matsui, Hiroyuki
;
Huang, Ching-Liang
;
Raghunath, P.
;
Wang, Niann-Shiah
H atom produced in the thermal decomposition of CH3OH highly diluted in Ar (0.48-10 ppm) was monitored behind reflected shock waves by atomic resonance absorption spectrometry (ARAS) at fixed temperatures (and pressures), that is, 1660 (1.73 atm), 1760 (2.34 atm), 1860 (2.04 atm), 1950 (2.18 atm), and 2050 K (1.76 atm) (+/- 10 K, respectively). High sensitivity for the H atom has been attained by signal averaging of the ARAS signals down to the concentrations of similar to 1 x 10(11) atoms/cm(3) and enables us to determine the branching fraction for the direct H atom production channel, CH3OH -> CH2OH + H (channel 1c) in a mixture of 1 ppm CH3OH. Channel 1c is confirmed to be minor, that is, branching fraction for channel 1c is expressed by Log(k(1c)/k(1)) = (- 2.88 +/- 1.88) x 10(3)/T - (0.23 +/- 1.02), which corresponds to k(1c)/k(1) < 0.03 for the present temperature range. By using 0.48 and 1.0 ppm CH3OH with (100-1000) ppm H-2, the total decomposition rate k(1) for CH3OH -> products is measured from the time dependence of H atom, where the radical products of main channels 1a and 1b, that is, OH, CH3, and CH2, were converted rapidly into H atoms. The experimental result is summarized as Log(k(1)/cm(3)molecule(-1)s(-1)) = (-12.82 +/- 0.71) x 10(3)/T - (8.5 +/- 0.38). A theoretical study based on ab initio/TST calculations with high accuracy has been conducted for the reaction: (CH2)-C-3 + H-2 -> CH3 + H (reaction 3). The rate is given by k(3)/cm(3)molecule(-1) s(-1) = (7.32 x 10(-19))T-2.3 exp (-3699/T). This result is used for numerical simulations to evaluate k(1). Present experimental results on the thermal decomposition rate of CH3OH are found to be consistent with previous works. It is also found that time dependence of [H] observed in the 10 ppm CH3OH in Ar can be reproduced very well by kinetic simulations by using a reaction mechanism composed of 36 elementary reactions.
Shock Tube Study on the Thermal Decomposition of CH(3)OH
(2010-05-06)
Lu, Ku-We
;
Matsui, Hiroyuki
;
Huang, Ching-Liang
;
Raghunath, P.
;
Wang, Niann-Shiah
H atom produced in the thermal decomposition of CH(3)OH highly diluted in Ar (0.48-10 ppm) was monitored behind reflected shock waves by atomic resonance absorption spectrometry (ARAS) at fixed temperatures (and pressures), that is, 1660 (1.73 atm), 1760 (2.34 atm), 1860 (2.04 atm), 1950 (2.18 atm), and 2050 K (1.76 atm) (+/- 10 K, respectively). High sensitivity for the H atom has been attained by signal averaging of the ARAS signals down to the concentrations of similar to 1 x 10(11) atoms/cm(3) and enables us to determine the branching fraction for the direct H atom production channel, CH(3)OH -> CH(2)OH + H (channel 1c) in a mixture of 1 ppm CH(3)OH. Channel 1c is confirmed to be minor, that is, branching fraction for channel 1c is expressed by Log(k(1c)/k(1)) = (- 2.88 +/- 1.88) x 10(3)/T - (0.23 +/- 1.02), which corresponds to k(1c)/k(1) < 0.03 for the present temperature range. By using 0.48 and 1.0 ppm CH(3)OH with (100-1000) ppm H(2), the total decomposition rate k(1) for CH(3)OH -> products is measured from the time dependence of H atom, where the radical products of main channels 1a and 1b, that is, OH, CH(3), and CH(2), were converted rapidly into H atoms. The experimental result is summarized as Log(k(1)/cm(3)molecule(-1)s(-1)) = (-12.82 +/- 0.71) x 10(3)/T - (8.5 +/- 0.38). A theoretical study based on ab initio/TST calculations with high accuracy has been conducted for the reaction: (3)CH(2) + H(2) -> CH(3) + H (reaction 3). The rate is given by k(3)/cm(3)molecule(-1) s(-1) = (7.32 x 10(-19))T(2.3) exp (-3699/T). This result is used for numerical simulations to evaluate k(1). Present experimental results on the thermal decomposition rate of CH(3)OH are found to be consistent with previous works. It is also found that time dependence of [H] observed in the 10 ppm CH(3)OH in Ar can be reproduced very well by kinetic simulations by using a reaction mechanism composed of 36 elementary reactions.
Analysis of particle interaction in particle swarm optimization
(2010-05-06)
Chen, Ying-ping
;
Jiang, Pei
;
資訊工程學系
;
Department of Computer Science
In this paper, we analyze the behavior of particle swarm optimization (PSO) on the facet of particle interaction. We firstly propose a statistical interpretation of particle swarm optimization in order to capture the stochastic behavior of the entire swarm. Based on the statistical interpretation, we investigate the effect of particle interaction by focusing on the social-only model and derive the upper and lower bounds of the expected particle norm. Accordingly, the lower and upper bounds of the expected progress rate on the sphere function are also obtained. Furthermore, the sufficient and necessary condition for the swarm to converge is derived to demonstrate the PSO convergence caused by the effect of particle interaction. (C) 2010 Elsevier B.V. All rights reserved.
Millimeter-Scale Dense Liquid Droplet Formation and Crystallization in Glycine Solution Induced by Photon Pressure
(2010-05-06)
Yuyama, Ken-ichi
;
Sugiyama, Teruki
;
Masuhara, Hiroshi
;
應用化學系
;
應用化學系分子科學碩博班
A millimeter-scale dense liquid droplet of glycine is prepared by focusing a CW near-infrared laser beam at the glass/solution interface of a thin film of its supersaturated heavy water solution. The formation process is investigated by direct observation with CCD and by measuring temporal change of the surface height with a displacement meter. The droplet becomes much large than a focal spot size, a few mm width and similar to 150 mu m height, and observable with the naked eye. Interestingly, the droplet remains for a few tens of seconds even after switching off the laser beam. Whereas the droplet is kept during laser irradiation, the crystallization is immediately attained by shifting the laser beam to the air/droplet surface. It is considered that the droplet is possibly the early stage of the multistep crystallization process and plays an important role in photon pressure-induced crystallization of glycine.
生態旅遊　永續的觀光？
(2010-05-09)
吳奕樺
;
Department of Communication and Technology
;
傳播與科技學系
何謂生態旅行？生態旅行這個名詞在現今社會中已不陌生，但是對於生態旅行的真正涵意卻常常誤會...。
犯罪in新聞　尺度拿捏兩相難
(2010-05-09)
陳明鈺
;
Department of Communication and Technology
;
傳播與科技學系
新聞媒體對犯罪事件過於詳細的陳述，一度被社會大眾抨擊，各界人士多半憂心這些新聞內容將導致心智未發展成熟的孩子，或自制能力不足的成人模仿以及產生其他不良影響；但也有人認為，民眾有知的權利。新聞媒體對於犯罪行為可以描寫到什麼程度，始終是個值得探討的問題。
網路中的女同志自我構築
(2010-05-09)
林詩雯
;
Department of Communication and Technology
;
傳播與科技學系
九零年代初期崛起的網際網路，徹底改變過去傳統社會的人際傳播，女同志因現實社會所造成的孤寂感，在網路世界裡得到認同。然而，女同志活躍於網路空間裡，卻在現實世界中依然沉默，何時能不透過網路而可以在真實環境中凝聚女同志的力量，會是女同志團體所要努力的目標。
一起走，你不會孤單
(2010-05-09)
黃湞尹
;
Department of Communication and Technology
;
傳播與科技學系
我很小的時候媽媽就說我很善良很有同情心，難怪我總是很雞婆，在一群人之中總是第一個心軟的人。
跨領域發展設計是門好生意
(2010-05-09)
林穎瑄
;
Department of Communication and Technology
;
傳播與科技學系
跨領域發展設計是門好生意
早期療育　用愛心啟發潛能
(2010-05-09)
陳怡儒
;
Department of Communication and Technology
;
傳播與科技學系
唐氏症兒童並非無藥可救，只是需要更多的愛心、耐心和適當的訓練，而社會的認同與接納，能讓他們的生存環境更為友善。
愛的故事
(2010-05-09)
吳雨璇
;
Department of Communication and Technology
;
傳播與科技學系
蛋頭先生是個喜愛動物的青年。他養過許多寵物，現在最喜歡的是蛋頭。蛋頭是他最好的寵物兼朋友。
微整形風潮知多少
(2010-05-09)
黃艾如
;
Department of Communication and Technology
;
傳播與科技學系
近年來風行的微整形，其實不過就是整形美容的一環，指的是不需要或是只需要動一些小手術同時不需要太久恢復時間的整形手術或是治療。
總編輯的話
(2010-05-09)
林忻
;
Department of Communication and Technology
;
傳播與科技學系
喀報在所有記者的努力下，終於也堂堂邁入第78期了，本周共計19篇文章，隨著記者們對於自己報導領域的愈常接觸，報導的內容也愈顯專業。
美語喧雜起跑點的競爭
(2010-05-09)
鄭心舜
;
Department of Communication and Technology
;
傳播與科技學系
全球化的潮流席捲而來，家長普便意識到英語教育的重要，為了不讓孩子輸在起跑點，幼兒美語成為托兒所和幼稚園招生時不可或缺的部份。
不只是囚禁　動物園新方向
(2010-05-09)
徐念慈
;
Department of Communication and Technology
;
傳播與科技學系
動物園一詞最早成立於十八世紀，它起源於人類對珍奇異獸的好奇及佔有欲，但隨著時間演變，動物園從早期只是單純鑑賞的目的，已逐漸發展其他更具價值的行為。現在我們以新竹市動物園為例，去探討動物園多面相的問題，不論在外國稀有物種因法規問題，凋零死去成必然趨勢後動物園該如何應變？及對籠內動物的不適應行為，動物園有什麼補救方法。
2.5次元的NICO歌手
(2010-05-09)
許庭瑜
;
Department of Communication and Technology
;
傳播與科技學系
介於動漫的二次元以及真人的三次元中，有一小群人是以2.5次元這個微秒的位置，在網路上發出他們的聲音。
武嶺武客嶺　合歡合家歡
(2010-05-09)
溫苔詠
;
Department of Communication and Technology
;
傳播與科技學系
不同於深冬的磅礡雪景，清明時節的合歡山上帶給大家與印象中不同的風情。
奇幻音樂想像延伸
(2010-05-09)
葉東瑜
;
Department of Communication and Technology
;
傳播與科技學系
奇幻通常都是視覺的效果，要如何在聲音上營造奇幻的感覺，就要發揮創作者的想像力了。
生活在於實踐黃鵬錡
(2010-05-09)
楊茹閔
;
Department of Communication and Technology
;
傳播與科技學系
黃鵬錡