Browsing by Issue Date, starting with "2015-12-02"

Now showing 1 - 20 of 20186

Positive gate bias instability alleviated by self-passivation effect in amorphous InGaZnO thin-film transistors
(2015-12-02)
Li, GongTan
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Yang, Bo-Ru
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Liu, Chuan
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Lee, Chia-Yu
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Tseng, Chih-Yuan
The threshold voltage shift (Delta Vth) under positive gate bias stress (PGBS), generally found in amorphous InGaZnO thin-film transistors (a-IGZO TFTs), has usually been suppressed by external passivation layers. We report it can also be alleviated by the self-passivation effect of the active layer, where moderately increasing the active layer thickness (d(s)) reduces Delta Vth by 82% in SiOx-passivated a-IGZO TFTs. Our experiments in conjunction with simulations show that the instability of V-th comes from ambient factors at the back channel. Larger d(s) results in lower carrier concentrations at the back channel (N-back), fewer diffusive ions affecting the front channel, and much more stable operations under PGBS. The optimal thickness of an IGZO film simultaneously obtaining a small Delta V-th, near-zero Vth, and sharp sub-threshold swing is about 80-90 nm, thicker than those usually adopted. The self-passivation effect combined with the externally deposited passivation layer can improve the overall device reliability.
Customer Loyalty under the Influence of Revenue Management: The Case of Taiwanese Hotel Customers
(2015-12-02)
Lin, Yi Hsin
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Huang, Kuancheng
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運輸與物流管理系註：原交通所+運管所
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Department of Transportation and Logistics Management
Revenue management (RM), a common practice for the hotel industry, has been found to be very effective in generating extra revenue. However, prior studies have shown that the implementation of RM may potentially be in conflict with customer loyalty, the basis for long-term profitability. With a view to alleviating the impact of RM on customer loyalty, this study investigates the relationship between customer loyalty and RM knowledge level, and examines the moderating effect of the fairness perception for pricing based on a survey and the related statistical analyses. The findings suggest that hotel operators should facilitate the RM knowledge and the fairness perception of their customers so as to result in a potential win-win situation, in which profit-seeking hotels increase their revenue through better resource utilization, and heterogeneous customers benefit from more diversified services.
In Situ Study of Fe3Pt-Fe2O3 Core-Shell Nanoparticle Formation
(2015-12-02)
Liang, Wen-I
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Zhang, Xiaowei
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Zan, Yunlong
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Pan, Ming
;
Czarnik, Cory
We report an in situ study of Fe3Pt-Fe2O3 coreshell nanoparticle growth using liquid cell transmission electron microscopy. By controlling the Fe-to-Pt ratio in the precursor solution, we achieved the growth of nanoparticles with the formation of an ironplatinum alloy core followed by an iron oxide shell in the electron beam-induced reactions. There was no substantial change in the growth kinetics of the iron oxide shell after the FePt alloy core stopped growing. The core growth was arrested by depletion of the Pt precursor. Heteroepitaxy of Fe3Pt [101] (core)||alpha-Fe2O3 [111] (shell) was observed in most of the nanoparticles, while a polycrystalline iron oxide shell is developed eventually for strain relaxation. Our studies suggest that Pt atoms catalyze the reduction of Fe ions to form the Fe3Pt alloy core, and when Pt is depleted, a direct precipitation of iron oxide results in the core-shell nanostructure formation.
METHOD FOR IMAGE ENHANCEMENT, IMAGE PROCESSING APPARATUS AND COMPUTER READABLE MEDIUM USING THE SAME
(2015-12-03)
Peng Kuo-Shiuan
;
Lin Fang-Cheng
;
Huang Yi-Pai
;
Shieh Han-Ping D.
A method, image processing apparatus, and computer readable medium for image enhancement are provided. In the method, a low-resolution image is received and upscaled to generate an upscaled image having first pixels. Edge detection is performed on the upscaled image to obtain edge information of the first pixels. Each piece of the edge information includes an edge direction and an edge intensity, and each of the edge directions includes a horizontal and vertical component having a constant summation. A non-edge region of the upscaled image is enhanced to generate a high-resolution detail image; based on unsharp masking sharpening methods, an edge region of the low-passed upscaled image is enhanced according to the horizontal and vertical components of the edge directions to generate a high-resolution edge image. Image fusion is performed on the high-resolution edge image and the high-resolution detail image according to the edge intensities to generate a super-resolution image.
When cells divide: Label-free multimodal spectral imaging for exploratory molecular investigation of living cells during cytokinesis
(2015-12-03)
Hsu, Jen-Fang
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Hsieh, Pei-Ying
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Hsu, Hsin-Yun
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Shigeto, Shinsuke
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應用化學系
In vivo, molecular-level investigation of cytokinesis, the climax of the cell cycle, not only deepens our understanding of how life continues, but it will also open up new possibilities of diagnosis/prognosis of cancer cells. Although fluorescence-based methods have been widely employed to address this challenge, they require a fluorophore to be designed for a specific known biomolecule and introduced into the cell. Here, we present a label-free spectral imaging approach based on multivariate curve resolution analysis of Raman hyperspectral data that enables exploratory untargeted studies of mammalian cell cytokinesis. We derived intrinsic vibrational spectra and intracellular distributions of major biomolecular components (lipids and proteins) in dividing and nondividing human colon cancer cells. In addition, we discovered an unusual autofluorescent lipid component that appears predominantly in the vicinity of the cleavage furrow during cytokinesis. This autofluorescence signal could be utilized as an endogenous probe for monitoring and visualizing cytokinesis in vivo.
SECONDARY OPTICAL ELEMENT AND LIGHT SOURCE MODULE
(2015-12-03)
Hsu Yu-Kai
;
Pan Jui-Wen
;
Huang Yung-Chih
A secondary optical element including a light incidence surface, a light emitting surface, and a connecting surface is provided. The light incidence surface includes a first and a second light incidence surfaces. The first light incidence surface is a curved surface recessed toward the light emitting surface. The light emitting surface is opposite to the light incidence surface and includes a first and a second light emitting surfaces. The first light emitting surface is a free-form surface recessed toward the light incidence surface or a flat surface. The second light emitting surface is a free-form surface. A diameter of the second light emitting surface is larger than a diameter of the second light incidence surface, and the connecting surface is connected between the second light incidence surface and the second light emitting surface. A light source module is also provided.
OPTICIAL FILM AND LIGHT SOURCE MODULE
(2015-12-03)
Hsu Yu-Kai
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Pan Jui-Wen
;
Chiang Che-Wen
An optical film adapted to be disposed over a light source is provided. The optical film includes a substrate, a plurality of columnar prismatic units, and a plurality of lenticular lenses. The substrate has a first surface and a second surface, wherein the first surface is located between the second surface and the light source. The columnar prismatic units comprises a plurality of columnar prisms protruding from the first surface or a plurality of prismatic recesses indented in the first surface, and the plurality of columnar prismatic units are arranged along a first direction and respectively extend along a second direction. The lenticular lenses are protruded from the second surface. The lenticular lenses are arranged along the first direction and respectively extend along the second direction. A light source module is also provided.
博愛座不坐？
(2015-12-06)
蔡家寧
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Department of Communication and Technology
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傳播與科技學系
臺灣讓座文化的轉型，成為全民必須共同正視的議題
瑯琊榜　隱忍的赤子之心
(2015-12-06)
胡浣莊
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Department of Communication and Technology
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傳播與科技學系
由原著改編的【瑯琊榜】因擁有緊扣人心的權謀、精湛的演技和精美的拍攝手法而掀起一陣旋風。
大型繁殖場　孕育小生命
(2015-12-06)
羅宛君
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Department of Communication and Technology
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傳播與科技學系
台中后里的一隅，千百隻生命讓台中后里增添充滿生命力的黃色。
Strong edge-coloring for jellyfish graphs
(2015-12-06)
Chang, Gerard J.
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Chen, Sheng-Hua
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Hsu, Chi-Yun
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Hung, Chia-Man
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Lai, Huei-Ling
A strong edge-coloring of a graph is a function that assigns to each edge a color such that two edges within distance two apart receive different colors. The strong chromatic index of a graph is the minimum number of colors used in a strong edge-coloring. This paper determines strong chromatic indices of cacti, which are graphs whose blocks are cycles or complete graphs of two vertices. The proof is by means of jellyfish graphs. (C) 2015 Elsevier B.V. All rights reserved.
夜半喀報到天明
(2015-12-06)
周書賢
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Department of Communication and Technology
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傳播與科技學系
編寫《喀報》距今已過半學期，心有所感故特撰此文紀念之。
槍械暴力　軍事強國的隱疾
(2015-12-06)
梅瑞庭
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Department of Communication and Technology
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傳播與科技學系
美國的槍械暴力事件已多達平均一天一起，其形成的背景是甚麼呢？
總編輯的話
(2015-12-06)
黃琪
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Department of Communication and Technology
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傳播與科技學系
本期為喀報第二百二十九期，共有二十五篇稿件，其中以心情故事居多。本期側欄廣告為冬令進補，在大家忙碌之餘，能夠帶來溫暖的感覺。
十字路口　賣餅乾的小愉兒
(2015-12-06)
林湘芸
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Department of Communication and Technology
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傳播與科技學系
位在基隆的烘焙坊，透過製作餅乾與叫賣，協助心智障礙的孩子學習。
二十年來　兒孫情
(2015-12-06)
許雅筑
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Department of Communication and Technology
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傳播與科技學系
以平實的文字道出二十年來兒孫間的感情。
餐桌上的藝術家
(2015-12-06)
何佳頴
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Department of Communication and Technology
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傳播與科技學系
曾凱浤從繪畫走到食物，將藝術融入美食之中，「玩食物」是他的態度，用創意帶給大家最簡單的美食饗宴。
戰亂幻夢　伊斯蘭國
(2015-12-06)
吳維倫
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Department of Communication and Technology
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傳播與科技學系
伊斯蘭國不僅僅是一個恐怖組織，更是一個運用商業管理意圖顛覆秩序的暗黑企業。
我的迷妹生活
(2015-12-06)
麻愷晅
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Department of Communication and Technology
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傳播與科技學系
小時候的娛樂不多，升上大學後，如同一匹脫韁野馬，開始了我的迷妹生活。
不及格的孩子　一百分媽媽
(2015-12-06)
許馨仁
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Department of Communication and Technology
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傳播與科技學系
小時候的我，被大家認為是笨蛋，只有媽媽不斷鼓勵我，讓我有力量向前。