Browsing by Issue Date, starting with "2014-06-07"

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Fluctuation-induced transport of two coupled particles: Effect of the interparticle interaction
(2014-06-07)
Makhnovskii, Yurii A.
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Rozenbaum, Viktor M.
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Sheu, Sheh-Yi
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Yang, Dah-Yen
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Trakhtenberg, Leonid I.
We consider a system of two coupled particles fluctuating between two states, with different interparticle interaction potentials and particle friction coefficients. An external action drives the interstate transitions that induces reciprocating motion along the internal coordinate x (the interparticle distance). The system moves unidirectionally due to rectification of the internal motion by asymmetric friction fluctuations and thus operates as a dimeric motor that converts input energy into net movement. We focus on how the law of interaction between the particles affects the dimer transport and, in particular, the role of thermal noise in the motion inducing mechanism. It is argued that if the interaction potential behaves at large distances as x(alpha), depending on the value of the exponent a, the thermal noise plays a constructive (alpha > 2), neutral (alpha = 2), or destructive (alpha < 2) role. In the case of alpha = 1, corresponding piecewise linear potential profiles, an exact solution is obtained and discussed in detail. (C) 2014 AIP Publishing LLC.
Structural development of gold and silver nanoparticles within hexagonally ordered spherical micellar diblock copolymer thin films
(2014-06-07)
Chen, Chia-Min
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Huang, Yi-Jiun
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Wei, Kung-Hwa
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材料科學與工程學系
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Department of Materials Science and Engineering
The spatial arrangement of metal nanoparticle (NP) arrays in block copolymers has many potential applications in OFET-type memory devices. In this study, we adopted a trapping approach in which we used a monolayer thin film of polystyrene-block-poly(4-vinylpyridine) (PS56k-b-P4VP(8k))-a highly asymmetric diblock copolymer having a spherical micelle morphology to incorporate various amounts of one-phase-synthesized dodecanethiol-passivated silver (DT-Ag) NPs and a fixed amount of ligand-exchanged pyridine-coated gold (Py-Au) NPs into the polystyrene (PS) and poly(4-vinylpyridine) (P4VP) blocks, respectively. We characterized the packing of these metal NPs in the two blocks of the nanostructured diblock copolymer using reciprocal-space synchrotron grazing incidence small-angle X-ray scattering (GISAXS) as well as atomic force microscopy (AFM) and transmission electron microscopy (TEM) in the real space. The packing of the Ag NPs in the PS block was dependent on their content, which we tuned by varying the concentrations in the composite solution at a constant rate of spin-coating. The two-dimensional hierarchical arrangement of Ag and Au NPs within the BCP thin films was enhanced after addition of the Py-Au NPs into the P4VP block and after spin-coating a thinner film from a low concentration solution (0.1 wt%), due to the DT-Ag NPs accumulating around the Py-Au/P4VP cores; this two-dimensional hierarchical arrangement decreased at a critical DT-Ag NP weight ratio (c) of 0.8 when incorporating the Py-Au NPs into the P4VP domains through spin-coating at higher solution concentration (0.5 wt%), where the DT-Ag NPs realigned by rotating 20 degrees along the z axis in the real space, due to oversaturation of the DT-Ag NPs within the PS domains.
Multi-level control of conductive nano-filament evolution in HfO2 ReRAM by pulse-train operations
(2014-06-07)
Zhao, L.
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Chen, H. -Y.
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Wu, S. -C.
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Jiang, Z.
;
Yu, S.
Precise electrical manipulation of nanoscale defects such as vacancy nano-filaments is highly desired for the multi-level control of ReRAM. In this paper we present a systematic investigation on the pulse-train operation scheme for reliable multi-level control of conductive filament evolution. By applying the pulse-train scheme to a 3 bit per cell HfO2 ReRAM, the relative standard deviations of resistance levels are improved up to 80% compared to the single-pulse scheme. The observed exponential relationship between the saturated resistance and the pulse amplitude provides evidence for the gap-formation model of the filament-rupture process.
白袍底下的真實
(2014-06-08)
高紫娟
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Department of Communication and Technology
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傳播與科技學系
不同於一般以醫院派系鬥爭的題材，《神的病歷簿》發生在日本鄉間的綜合醫院，探討人的生活與職業的平衡。
有畫面的音樂　流浪之旅
(2014-06-08)
游瑀萱
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Department of Communication and Technology
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傳播與科技學系
愛音樂成癡的王榆鈞，為了學習彈奏烏德琴，二零一一年參加了流浪者計畫，到土耳其伊斯坦堡流浪了兩個月。
正統與異端　認識基督宗派
(2014-06-08)
張萬邦
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Department of Communication and Technology
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傳播與科技學系
面對社會大眾的質疑聲浪，基督教的核心思想和不同教派間的觀點再一次成為討論的話題。
另類教育　體制外的選擇
(2014-06-08)
江岱燕
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Department of Communication and Technology
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傳播與科技學系
部分教育人士與家長為了追求理想中的教育方式，造就許多有別於主流體制的另類教育。
原鄉部落守護者
(2014-06-08)
楊哲維
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Department of Communication and Technology
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傳播與科技學系
摩度巴善是活化部落希望工程的發起人，為了原住民族的未來而努力不懈。
總編輯的話
(2014-06-08)
黃筱雯
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Department of Communication and Technology
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傳播與科技學系
本期為第一九三期，共有十三篇報導，以多媒體媒材呈現為主，內容豐富多元，且切合當今臺灣社會現況。
劫難重生後的希望
(2014-06-08)
徐冠軒
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Department of Communication and Technology
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傳播與科技學系
【希望：為愛重生】改編自真實事件「娜英事件」，講述一名被性侵害的小女孩，如何面對自己的人生。
愛心送養　貓狗同樂
(2014-06-08)
江欣薇
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Department of Communication and Technology
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傳播與科技學系
認養取代購買並且不棄養，貓狗同樂會定期在全台各地舉辦各種流浪動物的愛心送養活動。
隨你付　反思音樂新價值
(2014-06-08)
劉冠伶
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Department of Communication and Technology
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傳播與科技學系
「我的未來就是夢」音樂祭由政大學生發起，透過隨你付的付費機制，讓聽眾重新思考音樂的價值。
一代音樂才子歌劇舞台再現
(2014-06-08)
李孟東
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Department of Communication and Technology
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傳播與科技學系
以台灣本土音樂家為題材創作的室內樂歌劇「江文也與兩位夫人」，融合了東西方音樂元素。
展望　畢業成果展
(2014-06-08)
王怡方
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Department of Communication and Technology
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傳播與科技學系
大學畢業成果展不僅是展出一年以來自我的學期成果，更可以讓高中應屆畢業生透過參展找尋未來方向。
融合教育　需要多方努力
(2014-06-08)
魏意蓁
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Department of Communication and Technology
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傳播與科技學系
教育部自二○一三年起推動融合教育，這不只需要師資培育，也需要社會大眾對特殊生的認識。
高科技農業　人造新田地
(2014-06-08)
林婉婷
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Department of Communication and Technology
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傳播與科技學系
近幾年來，台灣跟進日本、韓國的腳步，開始發展植物工廠。
精神疾病　藥物治療必須性
(2014-06-08)
林立真
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Department of Communication and Technology
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傳播與科技學系
精神疾病藥物的副作用一直是精神疾病治療中一項爭議。在眾多治療方式中，藥物是否為必要方式，還有待商榷。
衝刺環法賽　夢想啟程
(2014-06-08)
許祐嘉
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Department of Communication and Technology
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傳播與科技學系
【騎動人生】是一部由洛朗杜埃爾執導的單車電影。描述主角在失去所有之後，憑藉夢想與毅力完成目標的故事。
CELLO2GO: A Web Server for Protein subCELlular LOcalization Prediction with Functional Gene Ontology Annotation
(2014-06-09)
Yu, Chin-Sheng
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Cheng, Chih-Wen
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Su, Wen-Chi
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Chang, Kuei-Chung
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Huang, Shao-Wei
CELLO2GO (http://cello.life.nctu.edu.tw/cello2go/) is a publicly available, web-based system for screening various properties of a targeted protein and its subcellular localization. Herein, we describe how this platform is used to obtain a brief or detailed gene ontology (GO)-type categories, including subcellular localization(s), for the queried proteins by combining the CELLO localization-predicting and BLAST homology-searching approaches. Given a query protein sequence, CELLO2GO uses BLAST to search for homologous sequences that are GO annotated in an in-house database derived from the UniProt KnowledgeBase database. At the same time, CELLO attempts predict at least one subcellular localization on the basis of the species in which the protein is found. When homologs for the query sequence have been identified, the number of terms found for each of their GO categories, i.e., cellular compartment, molecular function, and biological process, are summed and presented as pie charts representing possible functional annotations for the queried protein. Although the experimental subcellular localization of a protein may not be known, and thus not annotated, CELLO can confidentially suggest a subcellular localization. CELLO2GO should be a useful tool for research involving complex subcellular systems because it combines CELLO and BLAST into one platform and its output is easily manipulated such that the user-specific questions may be readily addressed.
Nanoball solution coating method and applications thereof
(2014-06-10)
Meng Hsin-Fei
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Zan Hsiao-Wen
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Chao Yen-Chu
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Wang Kai-Ruei
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Hsu Yung-Hsuan
The present invention discloses a nanoball solution coating method and applications thereof. The method comprises steps: using a scraper to coat a nanoball solution on a substrate to attach a plurality of nanoballs on the substrate; flushing or flowing through the substrate with a heated volatile solution to suspend the nanoballs unattached to the substrate in the volatile solution; and using the scraper to scrape off the volatile solution carrying the suspended nanoballs, whereby is simplified the process to coat nanoballs. The method can be used to fabricate nanoporous films, organic vertical transistors, and large-area elements and favors mass production.