Browsing by Issue Date, starting with "2013-02-25"

Now showing 1 - 20 of 32423

2013 交大建築展
(2013-02-25)
Arts Center
;
Graduate Institute of Architecture
;
藝文中心
;
建築研究所
建築星空Archi-Constellation 02.25-03.25 2013交通大學藝文空間 2.25（一）12:00開幕茶會 2.25（一）13:30–14:30 創作者導覽 3.05（二）19:00–21:00 海外實習講題：「構築」主講：陳思因（交大建築所學士後組98級畢業生）、簡志明（義築創辦人，現為交大建築所博士生）藝文空間 3.06（三）13:20–15:10 浩然講座講題：「人民的力量，社區的力量」主講：建築師謝英俊（第十六屆國家文藝獎建築類得主）圖書館B1浩然國際會議廳 3.09（六）14:00–17:00 建築教育國際交流講題：「On Architectural Education」主講：UK肯塔基大學 HKU香港大學 NCTU交通大學交大建築所大廳 3.18（一）19:00–21:00 建築壯遊講題：「Derive」主講：梁兆沅（第一屆交大建築所壯遊計畫得主）、王耀邦（archicake創意總監）藝文空間 3.23（六）13:30–18:00 學生論壇講題：「Architecture Studio as Lab」交大建築所大廳 3.04-3.25一、四　14:00–18:00 Open Design Studio 「解密黑盒子」藝文空間交通大學建築研究所 2013建築星空展交通大學藝文空間地址新竹市大學路1001號交通大學圖書館B1 時間星期一～星期五10:00-19:00 星期六～星期日10:00-17:00 電話(03)513-1233 主辦單位交通大學藝文中心、交通大學建築研究所贊助單位交大校友會、財團法人交大思源基金會
GaN-based high contrast grating surface-emitting lasers
(2013-02-25)
Wu, Tzeng-Tsong
;
Wu, Shu-Hsien
;
Lu, Tien-Chang
;
Wang, Shing-Chung
;
光電工程學系
GaN-based high contrast grating surface-emitting lasers (HCG SELs) with AlN/GaN distributed Bragg reflectors were reported. The device exhibited a low threshold pumping energy density of about 0.56 mJ/cm(2) and the lasing wavelength was at 393.6 nm with a high degree of polarization of 73% at room temperature. The specific lasing mode and polarization characterisitcs agreed well with the theoretical modeling. The low threshold characteristics of our GaN-based HCG SELs faciliated by the Fano resonance can serve as the best candidate in blue surface emitting laser sources. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794081]
1xN plasmonic power splitters based on metal-insulator-metal waveguides
(2013-02-25)
Chen, Chyong-Hua
;
Liao, Kao-Sung
;
光電工程學系
;
Department of Photonics
Novel plasmonic power splitters constructed from a rectangular ring resonator with direct-connected input and output waveguides are presented and numerically investigated. An analytical model and systematic approach for obtaining the appropriate design parameters are developed by designing an equivalent lumped circuit model for the transmission lines and applying it to plasmonic waveguides. This approach can dramatically reduce simulation times required for determining the desired locations of the output waveguides. Three examples are shown, the 1 x 3, 1 x 4, and 1 x 5 equal-power splitters, with the design method being easily extended to any number of output ports. (C)2013 Optical Society of America
Highly selective fluorescent sensors for mercury(II) ions and their applications in living cell imaging
(2013-02-25)
Wang, Hsuan-Fu
;
Wu, Shu-Pao
;
應用化學系
;
Department of Applied Chemistry
Three new pyrene derivatives (MS1, MS2, and MS3) containing two triazole units exhibited fluorescence quenching in the presence of Hg2+ ions. Other metal ions Ag+, Ca2+, Cd2+,Co2+, Cu2+, Fe2+, Fe3+, K+, Mg2+, Mn2+, Na+, Ni2+, Pb2+, Rb+, and Zn2+ produced only minor changes in the fluorescence of MS1, MS2, and MS3. The binding ratio of the chemosensor-Hg2+ complexes was found to be 1:1 according to Job plot experiments. The association constants (K-a) of chemosensor-Hg2+ complexes were found to be 1.68x10(3) M-1 (MS1), 1.57x10(3) M-1 (MS2), and 1.52x10(3) M-1 (MS3), respectively. Moreover, fluorescence microscopy experiments showed that MS1 could be used as a fluorescent probe for detecting Hg2+ in living cells. (C) 2013 Elsevier Ltd. All rights reserved.
Solvent-Annealing-Induced Nanowetting in Templates: Towards Tailored Polymer Nanostructures
(2013-02-25)
Chen, Jiun-Tai
;
Lee, Chih-Wei
;
Chi, Mu-Huan
;
Yao, I-Chun
;
應用化學系
We study the solvent-annealing-induced nanowetting in templates using porous anodic aluminum oxide membranes. The morphology of polystyrene and poly(methyl methacrylate) nanostructures can be controlled, depending on whether the swollen polymers are in the partial or complete wetting regimes, which are characterized by the spreading coefficient. When the swollen polymers are in the partial wetting regime, polymers wet the nanopores by capillary action, resulting in the formation of polymer nanorods. When the swollen polymers are in the complete wetting regime, polymers form wetting layers in the nanopores, resulting in the formation of polymer nanotubes. The solubility parameters of polymers and solvents are also used to predict the wetting behavior of swollen polymers in cylindrical geometry.
AGV-induced floor micro-vibration assessment in LCD factories by using a regressional modified Kanai-Tajimi moving force model
(2013-02-25)
Lee, C. L.
;
Su, R. K. L.
;
Wang, Y. P.
;
土木工程學系
;
Department of Civil Engineering
This study explores the floor micro-vibrations induced by the automated guided vehicles (AGVs) in liquid-crystal-display (LCD) factories. The relationships between moving loads and both the vehicle weights and speeds were constructed by a modified Kanai-Tajimi (MKT) power spectral density (PSD) function whose best-fitting parameters were obtained through a regression analysis by using experimental acceleration responses of a small-scale three-span continuous beam model obtained in the laboratory. The AGV induced floor micro-vibrations under various AGV weights and speeds were then assessed by the proposed regressional MKT model. Simulation results indicate that the maximum floor micro-vibrations of the target LCD factory fall within the VC-B and VC-C levels when AGV moves at a lower speed of 1.0 m/s, while they may exceed the acceptable VC-B level when AGV moves at a higher speed of 1.5 m/s. The simulated floor micro-vibration levels are comparable to those of typical LCD factories induced by AGVs moving normally at a speed between 1.0 m/s and 2.0 m/s. Therefore, the numerical algorithm that integrates a simplified sub-structural multi-span continuous beam model and a proposed regressional MKT moving force model can provide a satisfactory prediction of AGV-induced floor micro-vibrations in LCD factories, if proper parameters of the MKT moving force model are adopted.
Gate oxide breakdown-withstanding power switch structure
(2013-02-26)
Yang Hao-I
;
Chuang Ching-Te
;
Hwang Wei
The present invention proposes a gate oxide breakdown-withstanding power switch structure, which is connected with an SRAM and comprises a first CMOS switch and a second CMOS switch respectively having different gate-oxide thicknesses or different threshold voltages. The CMOS switch, which has a normal gate-oxide thickness or a normal threshold voltage, provides current for the SRAM to wake up the SRAM from a standby or sleep mode to an active mode. The CMOS switch, which has a thicker gate-oxide thickness or a higher threshold voltage, provides current for the SRAM to work in an active mode. The present invention prevents a power switch from gate-oxide breakdown lest noise margin, stabilization and performance of SRAM be affected.
Single-axis-control-input gyroscope system having imperfection compensation
(2013-02-26)
Chen Tsung-Lin
;
Chi Chien-Yu
;
Lee Chia-Wei
The present invention proposes a single-axis-control-input gyroscope system having imperfection compensation, which comprises a gyroscope and a state observer. The gyroscope includes a mechanical structure, and the dynamic behavior of the mechanical structure is described with a plurality of system parameters and a plurality of dynamic equations. The system parameters include a mass of the gyroscope, two main-axis spring constants, a cross-axis spring constant, two main-axis damping coefficients, a cross-axis damping coefficient and an angular velocity. The mechanical imperfections cause the system parameters to deviate from the designed values and become unknown values. The gyroscope receives a single-axis control signal and outputs a plurality of gyroscopic system dynamics. The single-axis control signal includes at least two frequency signals. The state observer is coupled to the gyroscope to receive the gyroscopic system dynamics as the inputs thereof to feed back compensations to the state observer. Thereby is estimated an angular velocity.
Photonic crystal and method of fabricating the same
(2013-02-26)
Wu Pu-Wei
;
Huang Yi-Jui
;
Lai Chun-Han
A three-dimensional geometric photonic crystal and a method of fabricating the photonic crystal are disclosed. The photonic crystal includes a geometric structure having a plurality of electrophoretic self-assembled particles and the plurality of particles are periodically arranged at any cross sections of the geometric structure. The method includes preparing an electrophoresis deposition suspension, installing first and second electrodes in the electrophoresis deposition suspension with the first electrode being encircled by the second electrode, and applying a voltage to the first electrode and the second electrode to form an electric field between the first and second electrodes, such that particles in the electrophoresis deposition suspension are electrophoretic self-assembled, and a periodically arranged geometric structure is formed. A photonic crystal thus may have a three-dimensional geometric structure in any shape.
Bicyclic heteroaryl compounds
(2013-02-26)
Sun Chung-Ming
;
Kuo Min-Liang
;
Tseng Yufeng Jane
Bicyclic heteroaryl compounds of formula (I) shown below are disclosed. Each variable in formula (I) is defined in the specification. Also disclosed is treatment of cancer with these compounds.
Structural and Electrical Properties of Conducting Diamond Nanowires
(2013-02-27)
Sankaran, Kamatchi Jothiramalingam
;
Lin, Yen-Fu
;
Jian, Wen-Bin
;
Chen, Huang-Chin
;
Panda, Kalpataru
Conducting diamond nanowires (DNWs) films have been synthesized by N-2-based microwave plasma enhanced chemical vapor deposition. The incorporation of nitrogen into DNWs films is examined by C Is X-ray photoemission spectroscopy and morphology of DNWs is discerned using field-emission scanning electron microscopy and transmission electron microscopy (TEM). The electron diffraction pattern, the visible-Raman spectroscopy, and the near-edge X-ray absorption fine structure spectroscopy display the coexistence of sp(3) diamond and sp(2) graphitic phases in DNWs films. In addition, the microstructure investigation, carried out by high-resolution TEM with Fourier transformed pattern, indicates diamond grains and graphitic grain boundaries on surface of DNWs. The same result is confirmed by scanning tunneling microscopy and scanning tunneling spectroscopy (STS). Furthermore, the STS spectra of current-voltage curves discover a high tunneling current at the position near the graphitic grain boundaries. These highly conducting regimes of grain boundaries form effective electron paths and its transport mechanism is explained by the three-dimensional (3D) Mott's variable range hopping in a wide temperature from 300 to 20 K. Interestingly, this specific feature of high conducting grain boundaries of DNWs demonstrates a high efficiency in field emission and pave a way to the next generation of high-definition flat panel displays or plasma devices.
Fabrication of electrolyte supported micro-tubular SOFCs using extrusion and dip-coating
(2013-02-27)
Hsieh, Wen-Shuo
;
Lin, Pang
;
Wang, Sea-Fue
;
材料科學與工程學系
;
Department of Materials Science and Engineering
Dense electrolyte supported micro tubular solid oxide fuel cells (T-SOFCs) were prepared in this study. Green Zr0.8Sc0.2O2 - delta (ScSZ) electrolyte micro-tubes with a thickness of 300 mu m were successfully prepared by extrusion at room temperature. After firing at 1400 degrees C, the bare electrolyte micro-tube with a thickness of 210 mu m, a diameter of 3.8 mm, and a length of 40 mm reached a relative density of 96.84% and a flexural strength of 202 MPa. To achieve a better sintering shrinkage match, the electrolyte micro-tubes were pre-sintered at 1100 degrees C, coated with NiO/ScSZ (60 vol.%:40 vol.%) in the inner surface of the microtubes by dip-coating method, and then co-fired at 1400 degrees C. After co-sintering, the interface of the porous anode layer and the dense electrolyte layer demonstrated good adhesion and mechanical integrity. Subsequently, a La0.8Sr0.2MnO3 - delta (LSM)/Ce0.8Gd0.2O2 - delta (GDC) (80 vol.%:20 vol.%) cathode layer was coated on the outer surface of the micro-tubes by dip-coating method and post-sintered at 1100 degrees C. The thicknesses of the anode and cathode layers read approximately 28 and 34 mu m respectively. After thermal cycling between 30 degrees C and 800 C under 97% N-2-3%H-2 on the anode and air on the cathode, the micro T-SOFCs showed no delamination and retained good adhesion based on the SEM results. The maximum power densities (MPD) of the single cell read 0.26 and 0.23 W cm(-2) respectively at 920 and 900 degrees C, and the open circuit voltage (OCV) reported the same 1.08 V. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
動亂紀實遺言二十年後--吳濁流的《台灣連翹》
(2013-02-27)
洪銘水
;
開放教育推動中心
;
Open Education Office
課程首頁本課程是由交通大學新文藝復興閱讀計畫提供。 96 年 8 月當各大學紛紛摩拳擦掌準備迎接新生的同時，交通大學校長吳重雨則因為一則來自於七月份泰晤士報，有關於英國首相布朗公布其夏日讀書清單的新聞中，看到了他對知識的尊重。在這同時，吳重雨校長也思考著，要如何為學生準備追求知識的環境和激發他們對知識的尊重與喜愛。台積電張忠謀董事長曾陳述他 18 歲進入哈佛那一年，博覽文史哲理工經典群籍，至此奠定了他求知的基礎，並借海明威名言，將其改為「哈佛這一年為人生可帶走的盛宴。」吳重雨校長以張董事長的學習為借鏡，認為學生固然能藉由自我閱讀的方式學習到豐沛的知識，但透過名人、大師親臨現場地介紹經典書籍，更能加深學子們對於書籍的認識與興趣，這也是「新文藝復興閱讀計劃」 ( 以下簡稱 : 「經典名著選讀」 ) 活動展開籌劃的緣由。於是，吳重雨校長便積極敦請「交大通識教育委員會」，接手籌備本計劃的相關活動，而該中心也成為實際施行本計畫的策動、開課以及認證單位。至此，期許交大學子藉由閱讀、聽講來提昇人文素養、開拓視野的「新文藝復興閱讀計劃」，就此展開。
Dye-sensitized solar cells based on agarose gel electrolytes using allylimidazolium iodides and environmentally benign solvents
(2013-02-28)
Hsu, Hsin-Ling
;
Tien, Cheng-Fang
;
Yang, Ya-Ting
;
Leu, Jihperng
;
材料科學與工程學系
Novel agarose gel electrolytes are prepared by allylimidazolium iodides-based ionic liquids and environmentally benign co-solvents (propylene carbonate (PC) and dimethyl sulfoxide (DMSO)) for dye-sensitized solar cells (DSSCs). Among 1-allyl-3-ethylimidadolium iodide (AEII), 1-allyl-3-propylimidazolium iodide (APII), 1-3-diallylimidazolium iodide (DAM, and 1-methyl-3-propylimidazolium iodide (MPII) ionic liquids, the agarose gel electrolyte containing AEII exhibits the best DSSC performance. The efficiency of the DSSC using the agarose gel electrolyte containing 1.5 M AEII and 0.65 wt% agarose is 5.89% with the highest I-3(-) diffusion coefficient of 7.7 x 10(-6) cm(2) s(-1). The performance of the AEII ionic liquid-based agarose gel electrolyte is comparable to the liquid electrolyte based on 3-methoxypropionitrile (MPN) (5.84%) under illumination at AM 1.5, 100 mW cm(-2). Moreover, the DSSC performance of the allylimidazolium iodides ionic liquid-based agarose electrolyte is determined by the interaction between ionic liquid and agarose, which affects the rigidity of the ion channels and the I-3(-) diffusion coefficient. (C) 2013 Elsevier Ltd. All rights reserved.
PRINTED FILTERING ANTENNA
(2013-02-28)
CHUNG Shyh-Jong
;
CHUANG Chao-Tang
A printed filtering antenna is provided. This filtering antenna comprises an antenna part and a coupled line resonator. The antenna part is directly connected to a coupled line resonator and occupies an antenna area. The coupled line resonator provides a filtering mechanism together with the antenna part. The coupled line resonator comprises a short-circuited stub and an open-circuited stub. The short-circuited stub comprises an open-circuited end and a short-circuited end connected to ground. The open-circuited stub is parallel to the short-circuited stub. The open-circuited stub comprises a first end o and a second end. The first end is connected to the feed point and is corresponding to the open-circuited end of the short-circuited stub such that the open-circuited stub is coupled to the short-circuited stub.
Sinter-free transferring of anodized TiO2 nanotube-array onto a flexible and transparent sheet for dye-sensitized solar cells
(2013-02-28)
Kuo, Yu-Yen
;
Chien, Chao-Hsin
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
A sinter-free method to transfer anodized TiO2 nanotube-arrays to a polyethylene terephthalate (PET) sheet is proposed. Since the anodized nanotube-array was crystallized independently before transferring to the PET, the internal charge transport resistance and the charge recombination rate are unchanged for the nanotubes on the PET sheet, and no high temperature sintering process is required. With hydrothermal treatment, the dye sensitized solar cell fabricated utilizing a low temperature bonded nanotube/PET as a photoelectrode exhibits a power conversion efficiency of 5.41%, which is only 0.87% lower than the power conversion efficiency of the solar cell using nanotubes bonded on a conductive glass through high temperature processes. (C) 2013 Elsevier Ltd. All rights reserved.
STRUCTURE OF HIGH ELECTRON MOBILITY TRANSISTOR GROWTH ON SI SUBSTRATE AND THE METHOD THEREOF
(2013-02-28)
YI CHANG Edward
;
Tang Shih-Hsuan
;
Lin Yueh-Chin
A structure of high electron mobility transistor growth on Si substrate and the method thereof, in particular used for the semiconductor device manufacturing in the semiconductor industry. The UHVCVD system was used in the related invention to grow a Ge film on Si substrate then grow the high electron mobility transistor on the Ge film for the reduction of buffer layer thickness and cost. The function of the Ge film is preventing the formation of silicon oxide when growing III-V MHEMT structure in MOCVD system on Si substrate. The reason of using MHEMT in the invention is that the metamorphic buffer layer in MHEMT structure could block the penetration of dislocation which is formed because of the very large lattice mismatch (4.2%) between Ge and Si substrate.
RING OSCILLATOR
(2013-02-28)
HO Ying-Chieh
;
Yang Yu-Sheng
;
Su Chau-Chin
A ring oscillator includes (2N+1) inverting delay circuit cells, and each delay circuit cell has an input port and an output port, where N is an integer larger than zero. Each of these (2N+1) inverting delay circuit cells receives a control voltage, and all of the (2N+1) inverting delay circuit cells are electrically connected with each other in series. Furthermore, the input port of one of the (2N+1) inverting delay circuit cells is electrically connected with the output port of an adjacent delay circuit cell of the (2N+1) inverting delay circuit cells.
印刷式濾波天線
(2013-03-01)
鍾世忠
;
莊肇堂
一種印刷式濾波天線,包含:天線部以及耦合線共振器。天線部與耦合線共振器直接連接。耦合線共振器與天線部結合以提供濾波作用,耦合線共振器包含:短路殘段電路以及開路殘段電路。短路殘段電路包含開路端以及接地之短路端。開路殘段電路以一間隙平行於短路殘段電路,包含第一端以及第二端。其中第一端連接於訊號饋入點,且對應於短路殘段電路之開路端,以與短路殘段電路耦合。
「菲」常生活，親身體驗
(國立陽明大學, 2013-03)
宋紹瑜