Browsing by Issue Date, starting with "2014-04-22"

Now showing 1 - 20 of 26802

母語不死要一代一代傳下去
(2014-04-22)
歐人瑋
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Department of Communication and Technology
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傳播與科技學系
「客家話不能丟失啊。」抱持著這樣一個源自於血源深處的信念，徐貴榮將自己的一生奉獻給了客家文化。尤其在客家話饒平腔的研究部分，他更是同界中的模範。徐貴榮出生在苗栗的三義，那是一個小小的鄉鎮。在那裡，幾乎所有的人都是用客家話做為日常溝通的語言。他從小就生長在一個充滿客家文化和語言的社區裡，理所當然的也就認為這是自己的一部分。「無形中就認定自己是一個客家的骨血吧。」徐貴榮閉著眼睛喃喃說著。
不攀緣不作秀演好自己的角色
(2014-04-22)
蔡妙鈴
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Department of Communication and Technology
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傳播與科技學系
穿著黑色上衣，梳著包頭的劉瑞琪，體態優雅，神韻爽朗。1960年出生在新竹縣竹東鎮，她的祖父母和父母都是客家人。「我是道道地地的客家人。」她自豪地說。一般客家人不敢說客家話，或者不敢承認自己是客家人的現象，並沒有發生在她身上，劉瑞琪打從骨子裡完全沒有客家人矮於閩南人或外省人的念頭。
First demonstration of rainbow photocatalysts using ternary Cd1-xZnxSe nanorods of varying compositions
(2014-04-22)
Nguyen, An T.
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Lin, Wei-Hao
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Lu, Yi-Hsuan
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Chiou, Yao-De
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Hsu, Yung-Jung
We demonstrated for the first time that the assembly of Cd1-xZnxSe nanorods (NRs) with five compositions (x= 0, 0.35, 0.54, 0.61,1) may absorb the whole visible spectrum in a gradient fashion for photoconversion applications. The samples were prepared by conducting cation exchange reactions on Ag2Se NRs with excess Cd2+ and Zn2+ ions. By modulating the molar ratio of Cd2+ to Zn2+ employed, the composition of the resulting Cd1-xZnxSe NRs can be delicately controlled. Because of the tunability of band edge with stoichiometry, Cd1-xZnxSe NRs of varying compositions absorbed light at different wavelength regions, which spanned almost the entire visible spectrum. As compared to the individual constituent NRs, the NRs assembly exhibited greatly improved photoactivity in photoelectrochemical water splitting as well as superior photocatalytic performance toward methylene blue degradation under white light illumination. This superiority emanates from the composition-gradient configuration that significantly improves the light harvesting efficiency by absorbing almost the whole visible spectrum of the incident white light. The full visible photon harvesting of the NRs assembly was validated by the photocurrent action spectrum which showed spectral accordance with the absorption spectrum. The recycling test manifests that the NRs assembly displayed substantially high stability during its use as photocatalyst. Furthermore, the result of performance evaluation under natural sunlight reveals that the present NRs assembly can be used as practical rainbow photocatalysts which may effectively harvest energy from sunlight. The demonstration from this work may facilitate the use of sophisticated assembly of semiconductor nanocrystals in relevant photoconversion processes where the effectiveness of photon harvesting is determinant. (C) 2014 Elsevier B.V. All rights reserved.
Yellow fluorosulfide phosphors for light-emitting diode and preparation method thereof
(2014-04-22)
Chen Teng-Ming
;
Wu Yun-Chen
A novel yellow phosphor of a fluorosulfide having a chemical formula of (A1-x-yCexBy)2Ca1-zSrzF4S2 and a tetragonal crystal phase is disclosed, wherein A and B are different rare earth metals other than Ce, the values of x, y, z are 0
唱作俱佳教國文十八武藝樣樣通
(2014-04-22)
蔡少安
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Department of Communication and Technology
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傳播與科技學系
早晨陽光斜射進來教室，這是高中校園裡常見的光景。在學生三三兩兩的教室裡，老師已經在台上準備等會兒的課程，卻是不太常出現的場景。徐滿娣任教於新營高中以十幾個年頭，國學領域的十八般武藝樣樣精通。比學生還認真的勤奮，是因為自己體內的客家血液所致嗎?
新瓦屋舊客風小學堂挑大樑
(2014-04-22)
顏學廷
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Department of Communication and Technology
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傳播與科技學系
民國九十三年，最後一批新瓦屋的居民，因為高鐵興建徵收土地的緣故，搬遷離開了居住多年的土地。這不只是帶起了新瓦屋原居民聚集彼此、將舊址重新整理成為新文化空間的一波行動，更讓竹北各地的客家人，為了不讓饒平的客家話在後人散居各地的情況下失傳，參與創立了「新竹縣饒平客家文化協會」。其中，竹北芎林長大的林祺樑便是協會第三任也是目前現職的總幹事。
Investigating microRNA-Target Interaction-Supported Tissues in Human Cancer Tissues Based on miRNA and Target Gene Expression Profiling
(2014-04-22)
Hsieh, Wan J.
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Lin, Feng-Mao
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Huang, Hsien-Da
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Wang, Hsiuying
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生物資訊及系統生物研究所
Recent studies have revealed that a small non-coding RNA, microRNA (miRNA) down-regulates its mRNA targets. This effect is regarded as an important role in various biological processes. Many studies have been devoted to predicting miRNA-target interactions. These studies indicate that the interactions may only be functional in some specific tissues, which depend on the characteristics of an miRNA. No systematic methods have been established in the literature to investigate the correlation between miRNA-target interactions and tissue specificity through microarray data. In this study, we propose a method to investigate miRNA-target interaction-supported tissues, which is based on experimentally validated miRNA-target interactions. The tissue specificity results by our method are in accordance with the experimental results in the literature.
p-type Mesoscopic Nickel Oxide/Organometallic Perovskite Heterojunction Solar Cells
(2014-04-23)
Wang, Kuo-Chin
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Jeng, Jun-Yuan
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Shen, Po-Shen
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Chang, Yu-Cheng
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Diau, Eric Wei-Guang
In this article, we present a new paradigm for organometallic hybrid perovskite solar cell using NiO inorganic metal oxide nanocrystalline as p-type electrode material and realized the first mesoscopic NiO/perovskite/[6,6]-phenyl C61-butyric acidmethyl ester (PC61BM) heterojunction photovoltaic device. The photo-induced transient absorption spectroscopy results verified that the architecture is an effective p-type sensitized junction, which is the first inorganic p-type, metal oxide contact material for perovskite-based solar cell. Power conversion efficiency of 9.51% was achieved under AM 1.5 G illumination, which significantly surpassed the reported conventional p-type dye-sensitized solar cells. The replacement of the organic hole transport materials by a p-type metal oxide has the advantages to provide robust device architecture for further development of all-inorganic perovskite-based thin-film solar cells and tandem photovoltaics.
Investigation of LaAlO3/ZrO2/a-InGaZnO thin-film transistors using atmospheric pressure plasma jet
(2014-04-24)
Wu, Chien-Hung
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Huang, Hau-Yuan
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Wang, Shui-Jinn
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Chang, Kow-Ming
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Hsu, Hsin-Yu
Amorphous indium-gallium-zinc-oxide thin-film transistors (a-IGZO-TFTs) with the LaAlO3/ZrO2 gate dielectric stack employing a novel atmospheric pressure plasma jet process that results in small subthreshold swing and low threshold voltage are proposed and fabricated. The influence of post-deposition annealing (PDA) temperature on LaAlO3/ZrO2 gate dielectric stack and device performance was investigated. The equivalent oxide thickness of the LaAlO3/ZrO2 dielectric stack decreases from 11.5 nm without annealing to 7 nm after a 500 degrees C annealing was applied. The LaAlO3/ZrO2/a-InGaZnO TFT with a 500 degrees C annealing exhibits a small subthreshold swing of 77 mV.dec(-1), a high field-effect mobility of 9 cm(2).V-1.s(-1) and an excellent current ratio of 1.8 x 10(7), which could be attributed to the improved gate dielectric quality by the PDA. The LaAlO3/ZrO2/a-InGaZnO TFTs with excellent gate control ability allow the device to operate at a low operating voltage with low power consumption.
Theoretical evaluation of diffusion coefficients of (Al2O3)(n) clusters in different bath gases
(2014-04-24)
Sharipov, Alexander S.
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Loukhovitski, Boris I.
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Tsai, Chuen-Jinn
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Starik, Alexander M.
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環境工程研究所
The binary diffusion coefficients of two low lying isomers of (Al2O3)(n), n = 1...4, clusters in different bath gases, that most frequently met in the nature and in the technical applications: H-2, N-2, O-2, CO, H2O as well as their self-diffusion coefficients have been calculated on the basis of kinetic theory and dipole reduced formalism. The parameters of interaction potential have been determined taking into account the contributions of a dispersion, dipole-dipole and dipole-induced dipole interactions between alumina clusters and bath molecules. The dipole moments, polarizabilities and collision diameters of clusters have been obtained by using quantum chemical calculations of cluster structure. The approximations for temperature dependencies of diffusion coefficients for two low-lying isomers of each considered alumina clusters are reported. It is demonstrated that an account for the contributions of the second for each type of clusters does not affect substantially the value of net diffusion coefficient. The diffusion coefficients of the isomers of small (Al2O3)(n) clusters can differ notably in the case when their dipole moments are distinct and they interact with strongly dipole molecules.
Universal Ferroelectric Switching Dynamics of Vinylidene Fluoride-trifluoroethylene Copolymer Films
(2014-04-24)
Hu, Wei Jin
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Juo, Deng-Ming
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You, Lu
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Wang, Junling
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Chen, Yi-Chun
In this work, switching dynamics of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer films are investigated over unprecedentedly wide ranges of temperature and electric field. Remarkably, domain switching of copolymer films obeys well the classical domain nucleation and growth model although the origin of ferroelectricity in organic ferroelectric materials inherently differs from the inorganic counterparts. A lower coercivity limit of 50 MV/m and 180 degrees domain wall energy of 60 mJ/m(2) are determined for P(VDF-TrFE) films. Furthermore, we discover in copolymer films an anomalous temperature-dependent crossover behavior between two power-law scaling regimes of frequency-dependent coercivity, which is attributed to the transition between flow and creep motions of domain walls. Our observations shed new light on the switching dynamics of semi-crystalline ferroelectric polymers, and such understandings are critical for realizing their reliable applications.
Homogeneous barrier modulation of TaOx/TiO2 bilayers for ultra-high endurance three-dimensional storage-class memory
(2014-04-25)
Hsu, Chung-Wei
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Wang, Yu-Fen
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Wan, Chia-Chen
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Wang, I-Ting
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Chou, Chun-Tse
Three-dimensional vertical resistive-switching random access memory (V-RRAM) is the most anticipated candidate for fulfilling the strict requirements of the disruptive storage-class memory technology, including low bit cost, fast access time, low-power nonvolatile storage, and excellent endurance. However, an essential self-selecting resistive-switching cell that satisfies these requirements has yet to be developed. In this study, we developed a TaOx/TiO2 double-layer V-RRAM containing numerous highly desired features, including: (1) a self-rectifying ratio of up to 10(3) with a sub-mu A operating current, (2) little cycle-to-cycle and layer-to-layer variation, (3) a steep vertical sidewall profile for high-density integration, (4) forming-free and self-compliance characteristics for a simple peripheral circuit design, and (5) an extrapolated endurance of over 10(15) cycles at 100 degrees C. Furthermore, the switching and self-rectifying mechanisms were successfully modeled using oxygen ion migration and homogeneous barrier modulation. We also suggest the new possibility of monolithically integrating working and storage memory by exploiting a unique tradeoff between retention time and endurance.
RegPhos 2.0: an updated resource to explore protein kinase-substrate phosphorylation networks in mammals
(2014-04-25)
Huang, Kai-Yao
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Wu, Hsin-Yi
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Chen, Yi-Ju
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Lu, Cheng-Tsung
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Su, Min-Gang
Protein phosphorylation catalyzed by kinases plays crucial roles in regulating a variety of intracellular processes. Owing to an increasing number of in vivo phosphorylation sites that have been identified by mass spectrometry (MS)-based proteomics, the RegPhos, available online at http://csb.cse.yzu.edu.tw/RegPhos2/, was developed to explore protein phosphorylation networks in human. In this update, we not only enhance the data content in human but also investigate kinase-substrate phosphorylation networks in mouse and rat. The experimentally validated phosphorylation sites as well as their catalytic kinases were extracted from public resources, and MS/MS phosphopeptides were manually curated from research articles. RegPhos 2.0 aims to provide a more comprehensive view of intracellular signaling networks by integrating the information of metabolic pathways and protein-protein interactions. A case study shows that analyzing the phosphoproteome profile of time-dependent cell activation obtained from Liquid chromatography-mass spectrometry (LC-MS/MS) analysis, the RegPhos deciphered not only the consistent scheme in B cell receptor (BCR) signaling pathway but also novel regulatory molecules that may involve in it. With an attempt to help users efficiently identify the candidate biomarkers in cancers, 30 microarray experiments, including 39 cancerous versus normal cells, were analyzed for detecting cancer-specific expressed genes coding for kinases and their substrates. Furthermore, this update features an improved web interface to facilitate convenient access to the exploration of phosphorylation networks for a group of genes/proteins. Database URL: http://csb.cse.yzu.edu.tw/RegPhos2/
Role of the Autonomic Nervous System in Atrial Fibrillation Pathophysiology and Therapy
(2014-04-25)
Chen, Peng-Sheng
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Chen, Lan S.
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Fishbein, Michael C.
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Lin, Shien-Fong
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Nattel, Stanley
Autonomic nervous system activation can induce significant and heterogeneous changes of atrial electrophysiology and induce atrial tachyarrhythmias, including atrial tachycardia and atrial fibrillation (AF). The importance of the autonomic nervous system in atrial arrhythmogenesis is also supported by circadian variation in the incidence of symptomatic AF in humans. Methods that reduce autonomic innervation or outflow have been shown to reduce the incidence of spontaneous or induced atrial arrhythmias, suggesting that neuromodulation may be helpful in controlling AF. In this review, we focus on the relationship between the autonomic nervous system and the pathophysiology of AF and the potential benefit and limitations of neuromodulation in the management of this arrhythmia. We conclude that autonomic nerve activity plays an important role in the initiation and maintenance of AF, and modulating autonomic nerve function may contribute to AF control. Potential therapeutic applications include ganglionated plexus ablation, renal sympathetic denervation, cervical vagal nerve stimulation, baroreflex stimulation, cutaneous stimulation, novel drug approaches, and biological therapies. Although the role of the autonomic nervous system has long been recognized, new science and new technologies promise exciting prospects for the future.
Salt-templated synthesis of Ce/Al catalysts supported on mesoporous silica for acetone oxidation
(2014-04-27)
Lin, Liang-Yi
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Bai, Hsunling
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環境工程研究所
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Institute of Environmental Engineering
A series of bimetallic Ce/Al catalysts supported on mesoporous silica catalysts were prepared through fast salt-templated aerosol process in this study. The source of sodium silicate precursor was from the alkali-extraction of the opto-electronic industrial waste. The inorganic salt formed during the silicate acidification process was served as an effective and low-cost template, which could be simply removed by water washing at room temperature. The Ce/Al-SiO2 catalysts were fabricated under various aerosol-spraying temperatures, and the temperature effects on the structural and surface properties were investigated by XRD, nitrogen physisorption measurement, SEM/TEM, ICP-MS, Al-27 MAS-NMR, UV-vis spectra, H-2-TPR and NH3-TPD analyses. The catalytic behavior was further evaluated in terms of acetone oxidation. The results revealed that the catalytic oxidation of acetone is mainly governed by the surface redox property, along with the acidity of the catalysts. The Ce/Al-SiO2-300, with high surface acidity and strong surface reducibility, appeared to have the best acetone catalytic performance at temperatures of 100-300 degrees C and its T-90 was at 165 degrees C under acetone inlet concentration of 1000 ppmv and GHSV of 15,000 h(-1). Furthermore, compared with literature data which catalysts were prepared using commercial silicon source and traditional organic surfactant templates, Ce/Al-SiO2-300 showed a comparable catalytic performance, indicating the great potential application of Ce/Al-SiO2 catalysts for the catalytic oxidation of acetone. (C) 2013 Elsevier B.V. All rights reserved.
職場接軌　研替正夯
(2014-04-27)
高紫娟
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Department of Communication and Technology
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傳播與科技學系
內政部役政署推出新的研發替代役制度，透過役男結合專長所學，在政府欲推動的各項產業中服役，促成產學接軌。
籃球DJ　熱血與衝勁
(2014-04-27)
柯惠文
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Department of Communication and Technology
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傳播與科技學系
SBL的球迷一定不陌生這個中氣十足的主持人，他是林志彥，投入SBL已經有十一年之久。
韓國諜報新紀元
(2014-04-27)
徐冠軒
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Department of Communication and Technology
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傳播與科技學系
韓國近年來大吹諜報電影的風潮。去年就有兩部是以北韓間諜為主軸的諜報片——【偉大的隱藏者】和【同窗生】。
傳統轉型　觀光工廠的崛起
(2014-04-27)
吳羽涵
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Department of Communication and Technology
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傳播與科技學系
至今不少傳統產業轉型為觀光工廠，其中工廠設置的地點，更是符合交通便利的要素，也吸引不少民眾前來體驗。
嘻哈傳教士　饒舌頌福音
(2014-04-27)
邱薏真
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Department of Communication and Technology
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傳播與科技學系
「基督饒舌嘻哈」是什麼？人們對嘻哈的認知通常是負面的；而對基督福音往往是尊敬，這兩者如何混為一談？