Browsing by Issue Date, starting with "2012-03-15"

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INTERACTIVE BIOSENSING DEVICE AND METHOD THEREOF
(2012-03-15)
LIN BOR-SHYH
;
LIN CHIN-TENG
;
CHAO CHIH-FENG
;
HUNG SHAO-HANG
;
WANG I-JAN
The present invention discloses an interactive biosensing device and a method thereof. The interactive biosensing device is arranged on a living body and comprises a physiological detection module detecting physiological signals of the living body; a physical sensation module triggering at least one physical device according to control instructions; a first wireless transmission module receiving control instructions or sends out physiological signals; a storage module storing physiological signals and control instructions; a video module capturing images of the living body; a control module processing physiological signals and control instructions and controlling operations of the video module; and a display unit presenting the images captured by the video module.
Characterizations of UV-Curable Montmorillonite/Epoxy Nanocomposites Prepared by a Hybrid of Chemical Dispersion and Planetary Mechanical Milling Process
(2012-03-15)
Huang, Heh-Chang
;
Huang, Shu-Ping
;
Hsieh, Tsung-Eong
;
Chen, Chin-Hsin
;
材料科學與工程學系
Ammonium salt, [2-(methacyloyloxy)ethyl] trimethylammonium methyl sulfate (MAOTMA), was adopted to modify montmorillonite (MMT) via the cationic exchange process in an acidic environment and a successful enlargement of MMT lamellar spacing from 1.18 to 1.39 nm was identified by x-ray diffraction and Fourier-transform infrared spectroscopy. Accordingly, UV-curable epoxy nanocomposite resins containing various amounts of MAOTMA-modified MMT were prepared with the aid of a planetary mechanical milling process. Transmission electron microscopy revealed a uniform dispersion of exfoliated MMT lamella in epoxy matrix, leading to the distinct improvements on thermal stability and thermal expansion property of nanocomposite samples. Calcium (Ca) test indicated that the good dispersion of MMT fillers in polymer effectively suppresses the moisture permeation in sample matrix. More than twofold increment on retention time of 5% Ca hydrolysis and 20% improvement on the permeation kinetic parameters were observed in the nanocomposite sample containing 8 wt % MMT in comparison with the pristine epoxy sample. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 3199-3207, 2012
n-ZnO/LaAlO3/p-Si heterojunction for visible-blind UV detection
(2012-03-15)
Tasi, D. S.
;
Kang, C. F.
;
Wang, H. H.
;
Lin, C. A.
;
Ke, J. J.
A visible-blind UV photodetector (PD) using a double heterojunction of n-ZnO/LaAlO3 (LAO)/p-Si was demonstrated. Inserted LAO layers exhibit electrical insulating properties and serve as blocking layers for photoexcited electrons from p-Si to n-ZnO, leading to an enhanced rectification ratio and a visible-blind UV detectivity of the n-ZnO/LAO/p-Si PDs due to the high potential barrier between LAO and p-Si layers (similar to 2.0 eV). These results support the use of n-ZnO/LAO/p-Si PDs in the visible-blind UV PDs in a visible-light environment. (C) 2012 Optical Society of America
Competing magnetic interactions and interfacial frozen-spins in Ni-NiO core-shell nano-rods
(2012-03-15)
Hsu, Hao-Chun
;
Lo, Chih-Chieh
;
Tseng, Yuan-Chieh
;
材料科學與工程學系
;
Department of Materials Science and Engineering
This paper investigates the subtle interfacial magnetism of highly-aligned, free-standing Ni-NiO core-shell rods on a Si substrate, fabricated by electroless-plating and an anodic aluminum oxide template. Transmission electron microscopy found that the NiO shell was uniformly present along the entire rod. Vertical magnetization shift, arising from opposite field cooling conditions, suggests frozen spins (FS) at the Ni-NiO interface. The FS were related to the pinning effects of the NiO on the Ni. The pinning strength depended on the NiO thickness, displaying a tunable fashion from 6 to 10 nano-meters with thermal annealing. The FS mediated the antiferromagnetic (AFM)-ferromagnetic (FM) interfacial coupling, leading to the temperature-dependent properties of the rods. FS were evident below 100 K, at which the NiO-AFM dominated the properties with a suppressed coercive field and non-saturated magnetization. At 100 K, however, the Ni-FM was superior to the NiO-AFM with a restored FM phase. Meanwhile, the interfacial magnetic frustration occurred due to the disappearance of FS. These two factors resulted in the coercivity enhancement at 100 K. The uniqueness of the structure opens opportunities to tailoring the properties of the rods by manipulating the core-shell inter-dependency, as well as inspiring further researches concerning its applications in spintronics. (C) 2012 American Institute of Physics. [ http://dx.doi.org/10.1063/1.3699039]
POLYMERIZABLE FULLERENE DERIVATIVE AND THEIR USE IN ORGANIC PHOTOVOLTAIC CELLS
(2012-03-15)
HSU CHAIN-SHU
;
CHENG YEN-JU
;
HSIEH CHAO-HSIANG
;
LI PEI-JUNG
The present invention discloses an inverted organic photovoltaic cell comprising a polymerizable fullerene interlayer adapted to enhance the device performance and lifetime. The polymerizable fullerene derivative comprises a fullerene core, a bridging functional group and a polymerizable functional group. The fullerene core can be either C60 or C70, and the bridging functional group comprises a cyclic hydrocarbon or a heterocyclic ring. The polymerizable functional group comprises a thermally polymerizable functional group or a photochemically polymerizable functional group.
Optical Simulation and Fabrication of Near-Ultraviolet LEDs on a Roughened Backside GaN Substrate
(2012-03-15)
Fu, Yi-Keng
;
Lu, Yu-Hsuan
;
Xuan, Rong
;
Chao, Chia-Hsin
;
Su, Yan-Kuin
In this letter, the numerical and experimental demonstrations for enhancement of light extraction efficiency in near-ultraviolet light-emitting diodes (LEDs) with a roughened backside on the N-face surface of GaN substrate through a chemical wet-etching process are investigated. It was also found that the increased etching time can increase the height of hexagonal pyramids and decrease the density of hexagonal pyramids. With 20-mA injection current, it was found that forward voltages were 3.13 and 3.16 V while output powers were 13.15 and 27.18 mW for the conventional LED and roughened backside LED, respectively.
Activity and expression profiling of matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) in the hearts with doxorubicin-induced cardiomyopathy
(2012-03-15)
Lin, C. S.
;
Kuan, T-C.
;
Lai, S-C.
;
Chen, M-Y.
;
Wu, H-T.
A regulatory element within the promoter of angiotensin-converting enzyme 2 (ace2) gene responsible for angiotensin II stimulation
(2012-03-15)
Kuan, T-C.
;
Chen, M-C.
;
Yang, T-H.
;
Wu, W-T.
;
Lin, C. S.
Curcumin and genistein inhibit TNF-alpha-inducted matrix metalloproteinase-9 (MMP-9) expression by repressing NF-kappa B-mediated transcription
(2012-03-15)
Wu, H-T
;
Sie, S-S
;
Chen, C-Y
;
Kuan, T-C
;
Lin, C. S.
On the performances of IEEE 802.16(d) mesh CDS-mode networks using Single-Switched-Beam Antennas
(2012-03-16)
Lin, Chih-Che
;
Wang, Shie-Yuan
;
Hsu, Teng-Wei
;
資訊工程學系
;
Department of Computer Science
The IEEE 802.16(d) mesh coordinated distributed scheduling (CDS) mode is a novel technology for future fixed wireless backbone networks and designed for the use of omnidirectional antennas. The use of Single-Switched-Beam Antennas (SSBAs) may have great potential to increase network capacity due to the antenna directivity. However, a network designed for omnidirectional antennas usually cannot operate well or achieve good performance with the presence of antenna directivity. In this paper, we review the designs of the IEEE 802.16 mesh CDS-mode network, study the issues of this network with the use of Single-Switched-Beam Antennas (SSBAs), and propose a complete solution to solve these issues. The performances of our proposed scheme is evaluated using simulations. The simulation results show that our proposed scheme can effectively solve the issues of using SSBAs in the IEEE 802.16 mesh CDS-mode network and greatly increase its network capacity. (C) 2011 Elsevier B.V. All rights reserved.
可交聯之富勒烯衍生物及其反式結構有機太陽能電池
(2012-03-16)
許千樹
;
鄭彥如
;
謝朝翔
;
李佩蓉
本發明揭露一種可交聯之富勒烯衍生物及其反式結構有機太陽能電池。此可交聯之富勒烯衍生物包含有一富勒烯本體、一橋接官能基及一可交聯官能基。橋接官能基係接合於富勒烯本體與可交聯官能基之間。富勒烯本體可包含碳六十或碳七十之富勒烯，而橋接官能基可包含環烷類(cyclic hydrocarbon)或雜環(heterocyclic ring)基團。可交聯官能基則可包含一熱交聯官能基或一光交聯官能基。
一種氮化物半導體磊晶層的表面處理方法
(2012-03-16)
李威儀
;
徐瑩珈
;
葉彥顯
;
陳奎銘
本發明揭露一種氮化物半導體磊晶層的表面處理方法，在特定溫度和壓力的環境中，於氮化物半導體磊晶層上通入特定的蝕刻氣體，經過特定的時間，可於氮化物半導體磊晶層表面產生特定的形貌。本發明可直接在氮化物半導體之表面產生圖樣化結構，可大幅降低製造成本。
Structures of Helicobacter pylori Shikimate Kinase Reveal a Selective Inhibitor-Induced-Fit Mechanism
(2012-03-16)
Cheng, Wen-Chi
;
Chen, Yen-Fu
;
Wang, Hung-Jung
;
Hsu, Kai-Cheng
;
Lin, Shuang-Chih
Shikimate kinase (SK), which catalyzes the specific phosphorylation of the 3-hydroxyl group of shikimic acid in the presence of ATP, is the enzyme in the fifth step of the shikimate pathway for biosynthesis of aromatic amino acids. This pathway is present in bacteria, fungi, and plants but absent in mammals and therefore represents an attractive target pathway for the development of new antimicrobial agents, herbicides, and antiparasitic agents. Here we investigated the detailed structure-activity relationship of SK from Helicobacter pylori (HpSK). Site-directed mutagenesis and isothermal titration calorimetry studies revealed critical conserved residues (D33, F48, R57, R116, and R132) that interact with shikimate and are therefore involved in catalysis. Crystal structures of HpSK center dot SO4, R57A, and HpSK center dot shikimate-3-phosphate center dot ADP show a characteristic three-layer architecture and a conformationally elastic region consisting of F48, R57, R116, and R132, occupied by shikimate. The structure of the inhibitor complex, E114A.162535, was also determined, which revealed a dramatic shift in the elastic LID region and resulted in conformational locking into a distinctive form. These results reveal considerable insight into the active-site chemistry of SKs and a selective inhibitor-induced-fit mechanism.
可注射性智慧凝膠及其製備方法
(2012-03-16)
劉典謨
;
蕭孟軒
;
林立傑
一種可注射性智慧凝膠及其製備方法，係對於改質後之幾丁聚醣，加入鹼性結構安定劑及稀釋溶液，而將幾丁聚醣溶液調整為偏中性，以接近人體之pH值，並可在低溫下形成可流動狀態的幾丁聚醣溶膠，當回到人體溫度則形成不可流動之幾丁聚醣凝膠，或者，利用於幾丁聚醣溶液中加入高分子電解液後再添加鈣離子或調成酸性溶液的方式，亦可將可流動狀態的幾丁聚醣溶膠轉為不可流動的幾丁聚醣凝膠，藉此製備而成的可注射性智慧凝膠不但具有可注射性，同時，可作為已載有藥物分子的磁敏性奈米膠囊之藥物載體凝膠，經由外加的磁場、電場及超音波等非接觸力的方式，控制其膠囊的破裂而釋放藥物至可注射性智慧凝膠中，再進行長時效及可階段性的藥物釋放，在生醫工程方面極具利用價值。
生物感知互動裝置及其方法
(2012-03-16)
林伯昰
;
林進燈
;
趙志峰
;
洪紹航
;
王怡然
本發明提供一種生物感知互動裝置及其方法，其係裝設於一生物體上，包含：一生理感測模組，感測生物體之一生理訊號；一物理式感知模組，其係根據一控制指令啟動至少一物理裝置；一第一無線傳輸模組，接收控制指令或送出生理訊號；一儲存模組，儲存生理訊號及控制指令；一視訊模組，擷取生物體之影像；一控制模組，處理生理訊號及控制指令，並控制視訊模組之作動；以及一顯示單元，顯示視訊模組所擷取之影像。
快速篩檢變異血紅素之方法
(2012-03-16)
吳東昆
;
王裕國
;
施木青
;
張煜昌
一種快速篩檢變異血紅素之方法，包含：(a)提供血液樣品；(b)快速分離血液樣品中之血紅素；(c)藉由基質輔助雷射脫附游離飛行時間質譜儀(MALDI-TOF)，以直線型(Linear mode)分析方法，判定步驟(b)之產物是否含有變異血紅素，並選擇性地執行以下步驟；(d)於超音波震盪環境下，以酵素水解步驟(b)之產物；以及(e)藉由MALDI-TOF，以反射型(Reflection mode)分析方法，經由比對軟體來判定步驟(d)之產物所含之變異血紅素之類型。此方法更包含於步驟(e)之後，藉由串聯質譜技術(質譜-質譜技術)(Tandem mass spectrometry(MS/MS))來分析變異血紅素之部份氨基酸序列。
相位調變元件、可切換２Ｄ／３Ｄ的顯示裝置、微透鏡陣列、３Ｄ顯示裝置與背光模組
(2012-03-16)
林怡欣
;
徐旭寬
;
陳政嶸
相位調變元件、可切換2D/3D的顯示裝置、微透鏡陣列、3D顯示裝置與背光模組。相位調變元件包括第一電極板、第二電極板與液晶混合物。第一電極板與第二電極板係可透光的並相對的。液晶混合物包括藍相液晶並設置在第一電極板與第二電極板之間。在操作相位調變元件的過程中，係調控第一電極板與第二電極板之間的偏壓，以對穿過第一電極板與第二電極板之間的液晶混合物的光線產生相位差。
離子感測元件
(2012-03-16)
余沛慈
;
陳炳茂
;
張家華
;
徐敏翔
;
黃展宏
本發明主要提供一種離子感測元件，包含有一可導電基底結構；以及複數凸設在該可導電基底結構上且與該可導電基底結構電性連接之離子感測奈米柱。每一離子感測奈米柱具有一離子敏感性外表面。該離子敏感性外表面具離子選擇性而可在待測溶液中選擇性地吸附待測離子以產生一對應於該待測離子濃度的表面電位能。
連線拓樸設計方法及包括上述方法之積體電路之製造方法
(2012-03-16)
江蕙如
;
張華宇
;
張之龍
一種連線拓樸設計方法，其中拓樸由複數源點、複數終點及複數連線所組成，其方法包括：計算所有連線長度，選擇連線之長度最短者為一可行連線；決定此可行連線之負載量；根據此可行連線之負載量、此可行連線的源點之電流量及其終點之電流量，決定其餘連線的負載量；比較其餘連線之長度，以選擇另一可行連線；重複上述步驟，找到所有可行連線，以形成一可行拓樸；根據可行拓樸，建立一流量網路模型；檢查流量網路模型中是否具有負循環；以及若流量網路模型中具有負循環，移除負循環以得到最佳拓樸。
A novel randomly textured phosphor structure for highly efficient white light-emitting diodes
(2012-03-16)
Chen, Hsin Chu
;
Chen, Kuo Ju
;
Wang, Chao Hsun
;
Lin, Chien Chung
;
Yeh, Chia Chi
We have successfully demonstrated the enhanced luminous flux and lumen efficiency in white light-emitting diodes by the randomly textured phosphor structure. The textured phosphor structure was fabricated by a simple imprinting technique, which does not need an expensive dry-etching machine or a complex patterned definition. The textured phosphor structure increases luminous flux by 5.4% and 2.5% at a driving current of 120 mA, compared with the flat phosphor and half-spherical lens structures, respectively. The increment was due to the scattering of textured surface and also the phosphor particles, leading to the enhancement of utilization efficiency of blue light. Furthermore, the textured phosphor structure has a larger view angle at the full width at half maximum (87A degrees) than the reference LEDs.