Browsing by Issue Date, starting with "2013-10-08"

Now showing 1 - 20 of 30417

Nonvolatile Flash Memory Based on Biologically Integrated Hierarchical Nanostructures
(2013-10-08)
Sano, Ken-Ichi
;
Miura, Atsushi
;
Yoshii, Shigeo
;
Okuda, Mitsuhiro
;
Fukuta, Megumi
The first six peptides of multifunctional titanium binding peptide-1 bestowed recombinant L-ferritin, minT1-LF, was genetically engineered and used to fabricate multilayered nanoparticle architecture. The multifunctionality of minT1-LF enables specific binding of nanoparticle-accommodated minT1-LF to the silicon substrate surface and wet biochemical fabrication of gate oxide layer by its biomineralization activity. Three-dimensional (3D) nanoparticle architecture with multilayered structure was fabricated by the biological layer-by-layer method and embedded in a metal oxide-semiconductor device structure as a charge storage node of a flash memory device. The 3D-integrated multilayered nanoparticle architecture successfully worked as a charge storage node in flash memory devices that exhibited improved charge storage capacity compared with that of a conventional monolayer structure device.
Role of the Comonomeric Units in Reaching Linear Backbone, High Solid-State Order and Charge Mobilities in Heptacyclic Arene-Based Alternating Copolymers
(2013-10-08)
Lee, Tien-Hsin
;
Wu, Kuan-Yi
;
Lin, Tai-Yen
;
Wu, Jhong-Sian
;
Wang, Chien-Lung
Unpredictable trends of charge mobility (mu) in multicyclic heteroarenes-contained polymers remain an obstacle in designing high performance polymers used in polymeric field effect transistors (PFETs). The roles of the comonomeric units in reaching high hole mobility (mu(h)) of copolymers containing a heptacyclic arene unit, dithienocyclopentacarbazole (DTCC) were investigated in this study. A series of four DTCC-based alternating copolymers, PDTCC-1T, PDTCC-3T, PDTCC-BDT, and PDTCC-TT, were synthesized from the Pd-catalyzed copolymerizations between DTCC and comonomeric units including thioene (1T), terthiophene (3T), benzodithiophene (BDT) and thienothiophene (TT) units. Among the four DTCC-based alternating copolymers, highest mobility of 1.36 X 10(-2) cm(2) s(-1) was reached in PDTCC-3T. Optoelectronic and 2D-WAXD studies revealed that strong electronic interaction and highly ordered solid-state structure were only observed in PDTCC-3T. It is attributed to the combination of two axisymmertric units, DTCC and 3T, linearized the polymer backbone, leading to a compact solid-state packing and high mu(h), while centrosymmertic comonomeric units, BDT and TT curved the polymer backbones of PDTCC-BDT and PDTCC-TT, which decreases solid-state order and mu(h). Furthermore, the short axisymmeritric 1T although results in a linear backbone of PDTCC-1T, comparing to 3T, it is too short to effectively reduce interchain steric hindrance caused by the solubilizing octyl chains on DTCC. Thus, effective pi-pi stacking is hindered in PDTCC-1T, resulting in low mu(h). The macroscopic performances of mu(h)s agreed well with the optoelectronic and 2D-WAXD studies. It is concluded that the linear backbone of DTCC copolymers is the prerequisite to reach ordered solid-state packing, which facilitate effective charge transport, and it depends on the prudent choose on the symmetry of the comonomeric unit. In addition, balance between the solubility and adequate crowdedness of lateral side chains is essential for a PFET material to be not only easily processed, but also effectively pi-pi stack.
Red and green fluorosulfide phosphor, preparation method and white-light emitting diodes thereof
(2013-10-08)
Chen Teng-Ming
;
Wu Yun-Chen
Novel red and green fluorosulfide phosphors have a chemical formula of (A1-x-yCexBy)SF, wherein A and B are both trivalent metal ions, 0
A New Pentacyclic Indacenodiselenophene Arene and Its Donor-Acceptor Copolymers for Solution-Processable Polymer Solar Cells and Transistors: Synthesis, Characterization, and Investigation of Alkyl/Alkoxy Side-Chain Effect
(2013-10-08)
Chang, Huan-Hsuan
;
Tsai, Che-En
;
Lai, Yu-Ying
;
Liang, Wei-Wei
;
Hsu, So-Lin
A pentacyclic indacenodiselenophene (IDS) arene was synthesized via intramolecular Friedel-Craft cyclization of the selenophene moieties. This IDS framework was used as a model system to investigate the alkyl/alkoxy side-chain effect by preparing IDS-OCH8 and IDS-C-6, where the side chains on the sp(3) carbon in the cyclopentadienyl ring are 4-octyloxyphenyl groups and 4-hexylphenyl groups, respectively. The SnIDS-OCH8 and Sn-IDS-C-6 monomers were copolymerized with 4,7dibromo-2,1,3-benzothiadiazole (BT), 4,7-diiodo-5,6-difluoro-2,1,3-benzothiadiazole (FBT) and 1,3-dibromothieno[3,4-dpyrrole-4,6-dione (TPD) acceptor monomers by Stil le polycondensation to afford five new IDS-based donor acceptor alternating copolymers, PIDSBT-OCH8, PIDSBTC6) PIDSFBT-OCH8, PIDSFBT-C-6, and PIDSTPD-C-6. Despite the fact that the octyloxy and hexyl side chains play a negligible role in the optical and electrochemical properties of the resulting polymers, the solar cell performance is highly associated with the side chains of the polymers. Under similar device fabrication conditions, the PIDSBT-C-6 and PIDSFBT-C-6-based devices showed much improved efficiencies than the corresponding PIDSBT-OCH8, and PIDSFBT-OCH8-based devices (2.6% and 1.9% vs 3.8% and 3.9%). The improvement is mainly the result of much enhanced J(sc) values. Consistently, PIDSBT-C-6 and PIDSFBT-C-6 exhibited much higher FET hole mobilites than the corresponding PIDSBT-OCH8, and PIDSFBT-OCH8. These results clearly revealed that the 4-hexylphenyl group is a more suitable side chain than the 4-octyloxyphenyl group in the IDS system, and the side-chain dependent mobility of the polymers is the dominating factor to determine the photocurrents and efficiencies of PSCs. PIDSBT-C-6 exhibited a high hole mobility of 0.08 cm(2) V-1 s(-1) and PIDSTPD-C-6:PC71BM (1:4 in wt %)-based solar cell with 5 v% chloronaphthalene (CN) delivered a V-oc of 0.92 V, a J(sc) of 9.77 mA/cm(2), an FF of 51%, and a highest PCE of 4.6%. This work not only discloses a new selenophene-containing ladder-type IDS structure and its copolymers but also provides useful insights into the allcyl/alkoxy side-chain effect for future design of conjugated polymers.
Localization-delocalization transition of the instantaneous normal modes of liquid water
(2013-10-09)
Huang, Ban-Chiech
;
Chang, Cheng-Hung
;
物理研究所
;
Institute of Physics
Despite the fact that the localization-delocalization transition (LDT) widely exists in wave systems, quantitative studies on its critical and multifractal properties are mainly focused on solids. In this work, these properties are investigated on the vibrational motions of liquid water. Simulations of up to 18 000 molecules on the flexible extended simple point charge water model provide nearly 10(6) instantaneous normal modes. They are shown to undergo an LDT close to the translational transition and exhibit multifractal fluctuations while approaching the LDT. In combination with finite-size scaling, multifractal analysis predicts the critical frequency Im(omega(c)) approximate to -131.6 cm(-1) for unstable modes at room temperature. The estimated critical exponent nu approximate to 1.60 is close to those of other calculated systems in the same Wigner-Dyson class. At the LDT, the fractal spectrum f (alpha) and the most probable local vibrational intensity alpha(mc) approximate to 4.04 coincide with those of the Anderson model, which might be additional universal properties of LDT in more general wave systems. The results extend the validity of the multifractal scaling approach beyond Andersonian systems to a Hessian system.
Liver-Specific Expressions of HBx and src in the p53 Mutant Trigger Hepatocarcinogenesis in Zebrafish
(2013-10-09)
Lu, Jeng-Wei
;
Yang, Wan-Yu
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Tsai, Su-Mei
;
Lin, Yueh-Min
;
Chang, Pen-Heng
Hepatocarcinogenesis is a multistep process that starts from fatty liver and transitions to fibrosis and, finally, into cancer. Many etiological factors, including hepatitis B virus X antigen (HBx) and p53 mutations, have been implicated in hepatocarcinogenesis. However, potential synergistic effects between these two factors and the underlying mechanisms by which they promote hepatocarcinogenesis are still unclear. In this report, we show that the synergistic action of HBx and p53 mutation triggers progressive hepatocellular carcinoma (HCC) formation via src activation in zebrafish. Liver-specific expression of HBx in wild-type zebrafish caused steatosis, fibrosis and glycogen accumulation. However, the induction of tumorigenesis by HBx was only observed in p53 mutant fish and occurred in association with the up-regulation and activation of the src tyrosine kinase pathway. Furthermore, the overexpression of src in p53 mutant zebrafish also caused hyperplasia, HCC, and sarcomatoid HCC, which were accompanied by increased levels of the signaling proteins p-erk, p-akt, myc, jnk1 and vegf. Increased expression levels of lipogenic factors and the genes involved in lipid metabolism and glycogen storage were detected during the early stages of hepatocarcinogenesis in the HBx and src transgenic zebrafish. The up-regulation of genes involved in cell cycle regulation, tumor progression and other molecular hallmarks of human liver cancer were found at later stages in both HBx and src transgenic, p53 mutant zebrafish. Together, our study demonstrates that HBx and src overexpression induced hepatocarcinogenesis in p53 mutant zebrafish. This phenomenon mimics human HCC formation and provides potential in vivo platforms for drug screening for therapies for human liver cancer.
2-Alkyl-5-thienyl-Substituted Benzo[1,2-b:4,5-b ']dithiophene-Based Donor Molecules for Solution-Processed Organic Solar Cells
(2013-10-09)
Patra, Dhananjaya
;
Huang, Tzu-Yen
;
Chiang, Chao-Cheng
;
Maturana, Ramon Orlando Valencia
;
Pao, Chun-Wei
In this study, we have strategically designed and convergently synthesized two novel, symmetrical, and linear A-D-A-type pi-conjugated donor molecules (TBDTCNR, TBDTCN), each containing a planar electron-rich 2-octylthiene-5-yl-substituted benzodithiophene (TBDT) unit as the core, flanked by octylthiophene units and end-capped with electron-deficient cyanoacetate (CNR) or dicyanovinyl (CN) units. We thoroughly characterized both of these materials and investigated the effects of the end groups (CNR, CN) on their optical, electrochemical, morphological, and photovoltaic properties. We then fabricated solution-processed bulk heterojunction organic solar cells incorporating TBDTCNR and TBDTCN. Among our tested devices, the one containing TBDTCNR and [6,6]-phenyl-C-61-butyric acid methyl ester in a 1:0.40 ratio (w/w) exhibited the highest power conversion efficiency (5.42%) with a short-circuit current density (J(sc)) of 9.08 mA cm(-2), an open circuit voltage (V-oc) of 0.90 V, and an impressive fill factor (FF) of 0.66 under AM 1.5G irradiation (100 mW cm(-2)). The FFs of these solution-processed small-molecule organic solar cells (SMOSCs) are outstanding when compared with those recently reported for benzodithiophene (BDT)-based SMOSCs, because of the high crystallinity and excellent stacking properties of the TBDT-based compounds.
LIPID CARRIER FOR DELIVERY OF BIOACTIVE SUBSTANCE AND PHARMACEUTICAL COMPOSITION
(2013-10-10)
Liao Kuang-Wen
;
Liu Yen-Ku
;
Chen Chia-Hung
The present invention provides a lipid carrier for delivering of a bioactive substance. The lipid carrier includes a lipid layer, a positive charged polymer and a surface active polymer. The positive charged polymer and the surface active polymer are respectively distributed on the lipid layer by non-covalent bonds. The present invention also provides a pharmaceutical composition. The present invention is advantageous for delivering bioactive substance efficiently.
CHOLESTERIC LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME
(2013-10-10)
CHEN Yu-Hsien
;
Chen Huang-Ming
;
Liu Sheng-Fa
;
Chiang Mei-Tsao
;
Ciou Bao-Sian
A cholesteric liquid crystal display device includes a first substrate, a second substrate, a cholesteric liquid crystal layer and a plurality of nano particles. The first substrate includes a first alignment layer. The second substrate includes a second alignment layer. The cholesteric liquid crystal layer is disposed between the first and second alignment layers. The nano particles are disposed on a surface of one of the first and second alignment layers, and located between the one of the first and second alignment layers and the cholesteric liquid crystal layer.
感測裝置
(2013-10-11)
鄭泗東
;
周伯謙
;
林育丞
一種感測裝置，包括基座、柱體、桿件、感測元件及驅動模組。基座具有承載面且適於承載物件於承載面上。柱體配置於承載面上。桿件具有兩端點及位於兩端點之間的樞接部。樞接部沿實質上平行於承載面的軸線樞接於柱體。感測元件配置於桿件上而位於一端點與樞接部之間。感測元件位於基座與物件之間。驅動模組配置於桿件與基座之間。驅動模組驅動桿件沿軸線相對柱體樞轉，感測元件隨著桿件的樞轉而移近或移離物件。
電阻式隨機存取記憶體以及其製作方法
(2013-10-11)
張俊彥
;
張耀峰
一種電阻式記憶體元件，包含：一第一電極；一第二電極，配置於該第一電極上方；一介電層，配置於該第一電極與該第二電極之間；以及電極混合系統層，配置於該第一電極與該介電層之間，亦或配置於該第二電極與該介電層之間，其中該電極混合系統層係由一過渡態金屬元素所構成。當該電極混合系統層配置於該第一電極與該介電層之間時，該電極混合系統層可於化學氣相沈積(CVD)該介電層時所含的熱與氧之製程環境中，而自發性地於該第一電極與該介電層之間形成一由氧化鐵(FeO)或氧化鈷(CoO)等過渡金屬氧化薄層所構成之第一電阻轉態層；另一種方式為藉由額外之退火製程，使得過渡態金屬元素與該介電層間形成由過渡金屬氧化薄層所構成之第一電阻轉態層於該第一電極與該介電層之間；當該電極混合系統層配置於該第二電極與該介電層之間時，則藉由額外之退火製程，使得過渡態金屬元素與該介電層間形成由過渡態金屬氧化薄層所構成之第二電阻轉態層於該第二電極與該介電層之間。
具有瑕疵補償之單軸控制輸入陀螺儀系統。
(2013-10-11)
陳宗麟
;
紀建宇
;
李嘉緯
本發明為一種具有瑕疵補償之單軸控制輸入陀螺儀系統，係包含一陀螺儀及一狀態觀察裝置；陀螺儀包含一機械結構，機械結構的動態行為可利用複數個系統參數及複數個動態方程式加以描述，該些系統參數包含陀螺儀的質量、主軸剛性係數、跨軸剛性係數、主軸阻尼係數、跨軸阻尼係數及一物體的待量測角速度。陀螺儀輸入一單軸控制訊號，而輸出複數個系統動態於兩軸，且單軸控制訊號包含至少兩個頻率訊號。狀態觀察裝置耦接於陀螺儀，並以陀螺儀系統動態輸出作為輸入，藉以回授補償於狀態觀察裝置，並於具機械結構瑕疵狀況下量測出待量測角速度。
同軸全像儲存裝置及其方法
(2013-10-11)
孫慶成
;
余業緯
說明書及圖式所揭露的是一種同軸全像儲存方法，此同軸全像儲存方法會控制同軸全像儲存媒體的溫度，使得同軸全像儲存媒體在寫入時的溫度較讀取時的溫度高約5℃～50℃。
可消除噪音且增進語音品質之麥克風陣列架構及其方法
(2013-10-11)
白明憲
;
陳俊宏
本發明提供一種可消除噪音且增進語音品質之麥克風陣列架構及其方法，利用至少二麥克風接收含有噪音訊號及語音訊號之麥克風訊號，利用快速傅立葉轉換將麥克風訊號轉換至頻率域，接著計算麥克風訊號中噪音訊號及語音訊號之夾角，並依據此夾角選擇使用相位差演算法、噪音消去法或二者合併使用，若使用相位差演算法，則再計算麥克風訊號之間的相位差以獲得時間域及空間域之遮蔽訊號，再將遮蔽訊號乘上麥克風訊號之平均而得到麥克風訊號中之語音訊號，去除噪音部分，增進語音品質。
Note on construction of dual-trace factor in Yang-Mills theory
(2013-10-11)
Fu, Chih-Hao
;
Du, Yi-Jian
;
Feng, Bo
;
電子物理學系
;
Department of Electrophysics
In this note we provide a new construction of BCJ dual-trace factor using the kinematic algebra proposed in arXiv:1105.2565 and arXiv:1212.6168. Different from the construction given in arXiv:1304.2978 based on the proposal of arXiv:1103.0312, the method used in this note exploits the adjoint representation of kinematic algebra and the use of inner product in dual space. The dual-trace factor defined in this way naturally satisfies cyclic symmetry condition but not KK-relation, just like the trace of U(N) Lie algebra satisfies cyclic symmetry condition, but not KK-relation. In other words the new construction naturally leads to formulation sharing more similarities with the color decomposition of Yang-Mills amplitude.
幻想變潮流　網路YY小說
(2013-10-13)
許仲廷
;
Department of Communication and Technology
;
傳播與科技學系
為什麼故事中的主角總是要歷經無數波折，通過各種艱難的挑戰才能成功？一種被稱為「YY小說」的快餐文學，正如其中的主角，以無敵之勢擊敗眾多對手，成為了現今網路小說的主流。
情慾攝影　藝術色情一線間
(2013-10-13)
聶薇庭
;
Department of Communication and Technology
;
傳播與科技學系
方框下的情慾挑逗，夾雜著裸露、性暗示以及虐待，身體意象在顯「性」文化架構下，以各種樣貌公開地展示在大眾面前，然而這項備受爭議的藝術展現，依舊是一項遊走在道德邊緣的「懸崖式藝術」。
東洋天后　創造不朽傳說
(2013-10-13)
李盈如
;
Department of Communication and Technology
;
傳播與科技學系
談到日本流行樂壇天后，許多人都會聯想到濱崎步、安室奈美惠、倖田來未等知名女歌手。然而，其實還有一位實力派創作型歌手多年來也叱吒風雲，創下至今仍無人可打破的神話，她就是宇多田光。
生死的禮儀　殯葬與治喪
(2013-10-13)
邱薏真
;
Department of Communication and Technology
;
傳播與科技學系
「殯葬業」一詞給人直接而強烈的印象就是「處理死人的事情」；殯葬是治喪儀式，也是民俗文化的一環，更是為往生者送行的禮儀。《命運化妝師》大膽地以禁忌的師生戀、女同性戀及大體化妝師，三大主軸貫穿整部影片，並透過人與人之間的衝突與互動刻劃人性。
熱血音樂　點燃球場激情
(2013-10-13)
林庭宇
;
Department of Communication and Technology
;
傳播與科技學系
在美國職棒大聯盟，令人印象深刻的球員的出場樂以及現場炒熱氣氛的歌曲，都是讓球迷能夠更感染比賽氣氛的方式。球團要如何善用音樂包裝比賽和球員，讓球迷觀賞比賽時能有更好的感覺。