Browsing by Issue Date, starting with "2014-03-03"

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Chiral-induced self-assembly sphere phase liquid crystal with fast switching time
(2014-03-03)
Zhu, Ji-Liang
;
Ni, Shui-Bin
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Chen, Chao Ping
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Wu, Dong-Qing
;
Song, Xiao-Long
A fluid self-assembly sphere phase (SP) of liquid crystal induced by chiral dopant is observed in a narrow temperature range between isotropic and blue phase or between isotropic and chiral nematic phase. The SP consists of three-dimensional twist spheres (3-DTSs) and disclinations among 3-DTSs. The temperature range of the SP has been broadened to more than 85 degrees C by stabilizing the disclinations with amorphous polymer chains. The electro-optical switching time of the polymer-stabilized SP is demonstrated in sub-millisecond with a low switching electric field of 4.4 V mu m(-1), which is of promising applications in displays, 3-D tunable photonic crystals, and phase modulators. (C) 2014 AIP Publishing LLC.
追尋馬可波羅的足跡：斯文‧赫定《亞洲腹地旅行記》
(2014-03-03)
周健
;
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。
High efficiency InGaN/GaN light emitting diodes with asymmetric triangular multiple quantum wells
(2014-03-03)
Chang, Chiao-Yun
;
Li, Hen
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Lu, Tien-Chang
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光電工程學系
;
Department of Photonics
In this study, we demonstrated high efficiency InGaN/GaN light emitting diodes (LEDs) with asymmetric triangular multiple quantum wells (MQWs). Asymmetric triangular MQWs not only contribute to uniform carrier distribution in InGaN/GaN MQWs but also yield a low Auger recombination rate. In addition, asymmetric triangular MQWs with gallium face-oriented inclination band profiles can be immune from the polarization charge originating from typical c-plane InGaN/GaN quantum well structures. In the experiment, LEDs incorporated with asymmetric triangular MQWs with gallium face-oriented inclination band profiles exhibited a 60.0% external quantum efficiency at 20mA and a 27.0% efficiency droop at 100mA (corresponding to a current density of 69A/cm(2)), which accounted for an 11.7% efficiency improvement and a 31.1% droop reduction compared with symmetric square quantum well structure LEDs. (C) 2014 AIP Publishing LLC.
Ruthenium complex-based photosensitizer dyes for dye-sensitized solar cells
(2014-03-04)
Diau Eric Wei-Guang
;
Huang Wei-Kai
This invention relates to ruthenium complex-based photosensitizer dyes for dye-sensitized solar cells, which have a general structural formula represented by formula (I).
Modelling perceived corporate citizenship and psychological contracts: A mediating mechanism of perceived job efficacy
(2014-03-04)
Chen, Mei-Liang
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Lin, Chieh-Peng
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經營管理研究所
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Institute of Business and Management
Corporate citizenship presented by a business organization is important for eventually improving its employees' anticipations about their responsibilities in an employment exchange relationship with the organization (i.e., psychological contracts). This study examines both direct and indirect effects of perceived corporate citizenship on psychological contracts and their key mediator. In the proposed model herein, transactional and relational contracts are affected by four dimensions of perceived corporate citizenship directly and indirectly through the mediation of job self-efficacy. Empirical testing using a survey of personnel from 20 high-tech corporations fully or partially supports eight of our nine hypothesized model paths. Finally, managerial implications and limitations of our findings are discussed.
Hydrogel Micropatches for Sampling and Profiling Skin Metabolites
(2014-03-04)
Dutkiewicz, Ewelina P.
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Lin, Jia-Der
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Tseng, Te-Wei
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Wang, Yi-Sheng
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Urban, Pawel L.
Metabolites excreted by skin have a huge potential as disease biomarkers. However, due to the shortage of convenient sampling/analysis methods, the analysis of sweat has not become very popular in the clinical setting (pilocarpine iontophoresis being a prominent exception). In this report, a facile method for sampling and rapid chemical profiling of skin metabolites excreted with sweat is proposed. Metabolites released by skin (primarily the constituents of sweat) are collected into hydrogel (agarose) micropatches. Subsequently, they are extracted in an online analytical setup incorporating nanospray desorption electrospray ionization and an ion trap mass spectrometer. In a series of reference measurements, using bulk sampling and electrospray ionization mass spectrometry, various low-molecular-weight metabolites are detected in the micropatches exposed to skin. The sampling time is as short as 10 min, while the desorption time is 2 min. Technical precision of micropatch analysis varies within the range of 3-42%, depending on the sample and the method of data treatment; the best technical precision (<= 10%) has been achieved while using an isotopically labeled internal standard. The limits of detection range from 7 to 278 pmol. Differences in the quantities of extracted metabolites are observed for the samples obtained from healthy individuals (intersubject variabilities: 30-89%; n = 9), which suggests that this method may have the potential to become a semiquantitative assay in clinical analysis and forensics.
Printed filtering antenna
(2014-03-04)
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 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.
Confidence intervals for a bounded mean in exponential families
(2014-03-04)
Wang, Hsiuying
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統計學研究所
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Institute of Statistics
Setting confidence bounds or intervals for a parameter in a restricted parameter space is an important issue in applications and is widely discussed in the recent literature. In this article, we focus on the distributions in the exponential families, and propose general forms of the truncated Pratt interval and rp interval for the means. We take the Poisson distribution as an example to illustrate the method and compare it with the other existing intervals. Besides possessing the merits from the theoretical inferences, the proposed intervals are also shown to be competitive approaches from simulation and real-data application studies.
Parameter adjustment device and method thereof
(2014-03-04)
Choi Charles Tak Ming
;
Lee Yi-Hsuan
A parameter adjustment device and method thereof for a stimulator is disclosed. The parameter adjustment device comprises a generation unit, a user interface and a process unit. The generation unit generates a test MAP based on a current MAP. The user interface displays the current MAP and the test MAP for choosing one of them as the preferred MAP, and displays a major and a minor for choosing again, the major and the minor is defined as a significant difference and a little difference between the test MAP and the current MAP respectively. The process unit computes the acceptance probability of the preferred MAP based on a major or minor probability correspondence relationship and determines a next MAP by comparing the acceptance probability with the test probability. When one of the termination conditions is satisfied in an iterative operation, the next MAP is outputted as the best MAP.
Method of elliptic curve cryptography using EW-MOF on scalar multiplication
(2014-03-04)
Ye Hung-Nan
;
Wang Kuo-Chen
;
Jan Rong-Hong
A method of elliptic curve cryptography (ECC) using the enhanced window-based mutual opposite form (EW-MOF) on scalar multiplication. First, an elliptic curve and a base point on the elliptic curve are selected. Next, essential pre-computed points for a selected window size are calculated. Then, a private key is randomly generated and the mutual opposite form (MOF) is used to convert the private key's binary representation into a signed binary representation. Finally, a public key is calculated by using the enhanced window (EW) method. By greatly reducing the number of essential pre-computed points, the EW-MOF reduces average key generation time (including pre-computation time).
Structural stability of diffusion barriers in thermoelectric SbTe: From first-principles calculations to experimental results
(2014-03-05)
Hsu, Hsiao-Hsuan
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Cheng, Chun-Hu
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Chiou, Shan-Haw
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Huang, Chiung-Hui
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Liu, Chia-Mei
This study involved developing robust diffusion barrier for n-type antimony telluride (SbTe) thermoelectric devices. Compared to conventional Ni barrier, the mid-band metals of Ta and TaN with favored ohmic-like contact exhibited smaller diffusion tail because of structurally stable interface on SbTe, which have been supported by first-principles calculations and demonstrated by experimental results. Furthermore, the TaN barrier has strong ionic Ta-N bonding and a high total energy of -4.7 eV/atom that could effectively suppress the formation of SbTe-compounds interfacial layer. (C) 2013 Elsevier B. V. All rights reserved.
交大e-News第158期
(2014-03-05)
Secretariat
;
國立交通大學秘書室
METHOD FOR ANALYZING NERVE FIBER DISTRIBUTION AND MEASURING NORMALIZED EVOKED COMPOUND ACTION ELECTRIC POTENTIAL
(2014-03-06)
Choi Charles Tak Ming
A method for analyzing nerve fibers distribution is provided, including inputting a stimulation signal into a nerve tissue through at least two sensing and conducting electrodes, applying a stimulation signal ratio to control the stimulation signal using an electric current steering technique to electrically stimulate a plurality of nerve fibers within a plurality of stimulations areas of the nerve tissue; receiving a plurality of evoked compound action potentials (ECAP) using at least two sensing and conducting electrodes due to the nerve fibers electrically stimulated and computing a distance between the nerve fiber and the conducting electrodes including eliminating non-ideal effect caused by an electric potential attenuation factor, wherein the electric potential attenuation factor is a function of the distance between each of the conducting electrodes and the nerve tissue; and integrating and comparing the received ECAPs and analyzing the nerve fibers distribution of the nerve tissue.
FLEXIBLE NON-VOLATILE MEMORY
(2014-03-06)
LIU Po-Tsun
;
FAN Yang-Shun
A manufacturing method for manufacturing a flexible non-volatile memory is provided. The manufacturing method comprises the steps outlined below. A flexible substrate is provided. A planarization layer is formed on the flexible substrate. A metal bottom electrode layer is deposited on the planarization layer. A mask is formed to define a plurality of patterns. An AZTO layer having a plurality of electrically independent AZTO cells is deposited on the metal bottom electrode layer corresponding to the patterns. A top electrode layer is deposited on the AZTO layer corresponding to the AZTO cells to form a plurality of non-volatile memory cells.
BIDIRECTIONAL SCANNING DRIVING CIRCUIT
(2014-03-06)
LIU PO-TSUN
;
CHU LI-WEI
;
ZHENG GUANG-TING
;
CHEN CHUN-YEN
;
KUO YI-CHUN
The invention provides a bidirectional scanning driving circuit, which comprises N stages of driving modules. Driving module comprises an output unit, a forward input unit, and a reverse input unit. For the n-th stage driving module, the forward input unit receives a first input voltage and a front forward scan signal of any of the driving modules lower than or equal to (n−2)th stage for charging or discharging a control node of the output unit. The reverse input unit receives a second input voltage and a back reverse scan signal of any of the driving modules higher than or equal to (n+2)th stage for charging or discharging the control node of the output unit. When the forward input unit is charging the output unit, the output unit outputs a forward scan signal; when the reverse input unit is charging the output unit, the output unit outputs a reverse scan signal.
Near-Edge X-ray Absorption Fine Structure Spectra and Site-Selective Dissociation of Phenol
(2014-03-06)
Lin, Yi-Shiue
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Lu, Kun-Ta
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Lee, Yuan T.
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Tseng, Chien-Ming
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Ni, Chi-Kung
A time-of-flight mass spectrometer with orthogonal acceleration and soft X-rays from synchrotron radiation were utilized to measure near-edge X-ray absorption fine structure (NEXAFS) spectra of carbon and oxygen in phenol and the corresponding ionic fragments following core excitation. The photon energies were in the range of 284-298 eV for the carbon K-edge and 529.5-554.5 eV for the oxygen K-edge. The total ion yield, ion intensity for each ionic fragment, and ion intensity ratio, defined as ion intensity divided by total ion yield, were measured as a function of photon energy. Possible mechanisms of dissociation are proposed and enhancements of specific products of dissociation are reported. In general, the enhancement of these specific products is small in the carbon K-edge region but is clear for some products at the oxygen K-edge. In particular, elimination of the H atom from the hydroxyl group was observed only at the oxygen K-edge. One remarkable result is that an excitation of a core-level electron of oxygen greatly enhanced the cleavage of specific C-C bonds.
CONTROL CIRCUIT OF SRAM AND OPERATING METHOD THEREOF
(2014-03-06)
CHUANG Ching-Te
;
LIEN Nan-Chun
;
LIAO Wei-Nan
;
CHU Li-Wei
;
CHANG Chi-Shin
A control circuit of SRAM and an operating method thereof are provided. The control circuit includes a memory array, a word-line driver, a boost circuit and a voltage level detecting circuit. The memory array includes a plurality of memory cells. Each memory cell includes a plurality of transistors. The word-line driver is to activate the word-line of the memory array for cell storage data access. The boost circuit is to provide the higher voltage source for the word-line driver and a first operating voltage for boosting the first operating voltage to a second operating voltage. The voltage level detecting circuit is detecting if the first operation voltage needed boosted with boost-operation and a detecting-trigger signal and controls the operating of the boost circuit based on the detecting-trigger signal, the first operating voltage and a predetermined voltage.
Preparation of a Protected 3-Deoxy-D-manno-oct-2-ulosonate Glycal Donor for the Synthesis of beta-KDO-Containing Oligosaccharides
(2014-03-07)
Pradhan, Tapan Kumar
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Lin, Chun Cheng
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Mong, Kwok-Kong Tony
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應用化學系
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Department of Applied Chemistry
A practical method for the synthesis of KDO glycal donors was developed. The prepared KDO donors exhibited excellent disastereoselectivity of glycosylation in a CH2Cl2-CH3CN solvent mixture, which was found to be associated with the isopropylidene protection at the C-4 and C-5 hydroxyls. The synthetic use of the KDO donor was demonstrated in the preparation of beta-KDO-containing oligosaccharides.
總編輯的話
(2014-03-09)
吳承樺
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Department of Communication and Technology
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傳播與科技學系
本期為喀報183期，總共26篇稿，其中以影評最多。這次影評文章都具有特殊的觀點，將導演拍攝手法、劇情的轉換以及與其他同類型電影的比較，都寫得深入且深刻。
脊髓損傷知多少
(2014-03-09)
陳佩瑄
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Department of Communication and Technology
;
傳播與科技學系
任何外力造成脊髓的不穩定甚或脫位，因而引起脊髓組織的損傷及神經功能的缺損均稱之為脊髓損傷。