Browsing by Issue Date, starting with "2015-02-17"

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Electrical connecting element having nano-twinned copper, method of fabricating the same, and electrical connecting structure comprising the same
(2015-02-17)
Chen Chih
;
Chiu Wei-Lan
An electrical connecting element, a method of fabricating the same, and an electrical connecting structure comprising the same are disclosed. The method of fabricating the electrical connecting structure having twinned copper of the present invention comprises steps of: (A) providing a first substrate; (B) forming a nano-twinned copper layer on part of a surface of the first substrate; (C) forming a solder on the nano-twinned copper layer of the first substrate; and (D) reflowing the nano-twinned Cu layer and solder to produce a solder joint, wherein at least part of the solder reacts with the nano-twinned copper layer to produce an intermetallic compound (IMC) layer which comprises a Cu3Sn layer, This invention reduces the voids formation in the interface between the intermetallic compound and the solder, and then enhances the reliability of solder joints.
Detection of Staphylococcus aureus by Functional Gold Nanoparticle-Based Affinity Surface-Assisted Laser Desorption/Ionization Mass Spectrometry
(2015-02-17)
Lai, Hong-Zheng
;
Wang, Sin-Ge
;
Wu, Ching-Yi
;
Chen, Yu-Chie
;
應用化學系
Staphylococcus aureus is one of the common pathogenic bacteria responsible for bacterial infectious diseases and food poisoning. This study presents an analytical method based on the affinity nanoprobe-based mass spectrometry that enables detection of S. aureus in aqueous samples. A peptide aptamer DVFLGDVFLGDEC (DD) that can recognize S. aureus and methicillin-resistant S. aureus (MRSA) was used as the reducing agent and protective group to generate DD-immobilized gold nanoparticles (AuNPs@DD) from one-pot reactions. The thiol group from cysteine in the peptide aptamer, i.e., DD, can interact with gold ions to generate DD-immobilized AuNPs in an alkaline solution. The generated AuNPs@DD has an absorption maximum at similar to 518 nm. The average particle size is 7.6 +/- 1.2 nm. Furthermore, the generated AuNPs@DD can selectively bind with S. aureus and MRSA. The conjugates of the target bacteria with AuNPs were directly analyzed by surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS). The gold ions generated from the AuNPs@DD anchored on the target bacteria were monitored. Gold ions (m/z 197 and 394) were only generated from the conjugates of the target bacterium-AuNP@DD in the SALDI process. Thus, the gold ions could be used as the indicators for the presence of the target bacteria. The detection limit of S. aureus using this method is in the order of a few tens of cells. The low detection limit is due to the ease of generation of gold cluster ion derived from AuNPs under irradiation with a 355 nm laser beam. Apple juice mixed with S. aureus was used as the sample to demonstrate the suitability of the method for real-world application. Because of its low detection limit, this approach can potentially be used to screen the presence of S. aureus in complex samples.
Control strategies for departure process delays at airport passenger terminals
(2015-02-17)
Hsu, Chaug-Ing
;
Chao, Ching-Cheng
;
Hsu, Nai-Wen
;
運輸與物流管理系註：原交通所+運管所
;
Department of Transportation and Logistics Management
This paper explores the characteristics of process delays at airport passenger terminals and establishes a queuing model for both passengers and baggage served by different connecting type facilities. The impact of delay propagation on other processes and flights is investigated using an analytical approach. In addition, the extra costs incurred on passengers, process operators, and airlines are examined using the delay cost functions. To reduce the impact of process delays, various delay-controlled strategies are proposed, such as setting scheduled times for completion of a process, increasing the number of service counters, and priority service for emergent flights. Taoyuan International Airport in Taiwan is used as a case study when facing special events. Results showed that the model can effectively and efficiently estimate delay propagation and its costs. In addition, processes that are not consecutive allow more buffer time between different operations, which helps ease propagation of delays caused by previous services.
On-chip electronic device and method for manufacturing the same
(2015-02-17)
Cheng Yu-Ting
;
Chao Tzu-Yuan
;
Chen Kuan-Ming
;
Hsu Hsin-Fu
The present invention relates to an on-chip electronic device and a method for manufacturing the same. The on-chip electronic device according to the present invention comprises a substrate, a porous layer, a plurality of magnetic bodies, and an electronic member layer. The porous layer is disposed on the substrate and has a plurality of voids; each of the plurality of magnetic bodies is disposed in the plurality of voids, respectively; and the electronic member layer is disposed on one side of the porous layer, such as upper side of or lower sider of the porous layer. Because the plurality of magnetic bodies is used as the core of the inductance, the inductance is increased effectively and the area of the on-chip electronic device is reduced. Besides the manufacturing method according to the present invention is simple and compatible with the current CMOS process, the manufacturing cost can be lowered.
Pure electron-electron dephasing in percolative aluminum ultrathin film grown by molecular beam epitaxy
(2015-02-18)
Lin, Shih-Wei
;
Wu, Yue-Han
;
Chang, Li
;
Liang, Chi-Te
;
Lin, Sheng-Di
We have successfully grown ultrathin continuous aluminum film by molecular beam epitaxy. This percolative aluminum film is single crystalline and strain free as characterized by transmission electron microscopy and atomic force microscopy. The weak anti-localization effect is observed in the temperature range of 1.4 to 10 K with this sample, and it reveals that, for the first time, the dephasing is purely caused by electron-electron inelastic scattering in aluminum.
Luminous efficiency enhancement of white light-emitting diodes by using a hybrid phosphor structure
(2015-02-19)
Lin, Bing-Cheng
;
Huang, Jhih-Kai
;
Chen, Kuo-Ju
;
Chiu, Sheng-Huan
;
Tu, Zong-Yi
This paper presents a "hybrid" structure for the coating of yellow YAG: Ce3(+) phosphor on blue GaN-based light-emitting diodes (LEDs). The luminous efficiency of the hybrid phosphor structure improved by 5.9% and 11.7%, compared with the conventional remote and conformal phosphor structures, respectively, because of the increased intensity of the yellow component. The hybrid structure also has an advantage in the phosphor usage reduction for the LEDs. Furthermore, the electric intensity of the hybrid phosphor structure was calculated for various thicknesses by conducting TFCalc32 simulation, and the enhanced utilization of blue rays was verified. Finally, the experimental results were consistent with the simulation results performed using the Monte-Carlo method. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Discovery of prognostic biomarkers for predicting lung cancer metastasis using microarray and survival data
(2015-02-21)
Huang, Hui-Ling
;
Wu, Yu-Chung
;
Su, Li-Jen
;
Huang, Yun-Ju
;
Charoenkwan, Phasit
Background: Few studies have investigated prognostic biomarkers of distant metastases of lung cancer. One of the central difficulties in identifying biomarkers from microarray data is the availability of only a small number of samples, which results overtraining. Recently obtained evidence reveals that epithelial-mesenchymal transition (EMT) of tumor cells causes metastasis, which is detrimental to patients' survival. Results: This work proposes a novel optimization approach to discovering EMT-related prognostic biomarkers to predict the distant metastasis of lung cancer using both microarray and survival data. This weighted objective function maximizes both the accuracy of prediction of distant metastasis and the area between the disease-free survival curves of the non-distant and distant metastases. Seventy-eight patients with lung cancer and a follow-up time of 120 months are used to identify a set of gene markers and an independent cohort of 26 patients is used to evaluate the identified biomarkers. The medical records of the 78 patients show a significant difference between the disease-free survival times of the 37 non-distant-and the 41 distant-metastasis patients. The experimental results thus obtained are as follows. 1) The use of disease-free survival curves can compensate for the shortcoming of insufficient samples and greatly increase the test accuracy by 11.10%; and 2) the support vector machine with a set of 17 transcripts, such as CCL16 and CDKN2AIP, can yield a leave-one-out cross-validation accuracy of 93.59%, a test accuracy of 76.92%, a large disease-free survival area of 74.81%, and a mean survival prediction error of 3.99 months. The identified putative biomarkers are examined using related studies and signaling pathways to reveal the potential effectiveness of the biomarkers in prospective confirmatory studies. Conclusions: The proposed new optimization approach to identifying prognostic biomarkers by combining multiple sources of data (microarray and survival) can facilitate the accurate selection of biomarkers that are most relevant to the disease while solving the problem of insufficient samples.
單端多埠之儲存裝置
(2015-02-21)
楊皓義
;
黃威
本發明係有關於一種單端多埠之儲存裝置，其藉由一第一反相器之第一輸入端耦接於一第二反相器之第二輸出端，第一反相器之第一輸出端耦接於第二反相器之第二輸入端，一均衡器，耦接該第一反相器與該第二反相器，以控制該第一反相器與該第二相器之電位，使耦接於第一反相器與於第二反相器之複數存取埠可存取資料。如此，可降低資料寫入儲存裝置所消耗的功率，並加快資料寫入儲存裝置的速度。
雙視角膠囊內視鏡之鏡頭系統
(2015-02-21)
吳重雨
;
潘瑞文
;
蘇昱中
;
王志中
;
林育民
本發明提供一種雙視角膠囊內視鏡之鏡頭系統，其鏡頭中係包括一前視場光學系統，包含一第一鏡片組及一第三鏡片組，透過第一鏡片組及第三鏡片組取得一前方視場之影像訊號；以及一後視場光學系統，包含第二鏡片組及第三鏡片組，透過第二鏡片組及第三鏡片組取得一後方視場之影像訊號。藉由前後二個視場的光學系統，可擴大膠囊內視鏡的視場範圍。
碼相位擷取裝置及方法
(2015-02-21)
高銘盛
;
張介福
;
謝萬信
一種碼相位擷取方法，包含以下步驟：(S)基於一輸入序列的N個位元{x0,x1,x2...,xN-1}轉換出一輸入轉換信號，基於一參考序列的N個位元{y0,y1,y2...,yN-1}轉換出一參考轉換信號；(T)使輸入轉換信號相比於參考轉換信號而得到一相對信號；及(U)當相對信號的相位落於　，判斷兩序列間的相位位移=q，0≦q<N。另一方法則以序列分群概念，分別從輸入序列和參考序列中取出M1個位元進行轉換，並根據轉換結果的幅值和相位推導出該相位位移。
Bidirectional scanning driving circuit
(2015-02-24)
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.
Electroluminescent device including moisture barrier layer
(2015-02-24)
Leu Jihperng
;
Syu Shu-Hao
;
Tu Hung-En
;
Wang Chih
An electroluminescent device includes: a substrate; an electroluminescent layered structure disposed over the substrate and including first and second electrode layers and an electroluminescent material layer disposed between the first and second electrode layers; and a moisture barrier layer in contact with the electroluminescent layered structure for preventing moisture from diffusing into the electroluminescent layered structure. The moisture barrier layer includes at least two inorganic films of a silicon-nitrogen-containing compound and at least one polymer film interposed between the inorganic films.
Ligand and metal complex having the same
(2015-02-24)
Wang Yun-Ming
;
Liu Gin-Chung
;
Chen Chiao-Yun
;
Li Teng-Wen
A ligand and a metal complex having the ligand are provided. The ligand and a paramagnetic metal ion form a metal complex with high stability, high relaxivity and high biocompatibility. The metal complex of the present invention is applicable to the preparation of MRI contrast agents for detecting atherosclerosis. The MRI contrast agent includes a peptide sequence specific to a matrix metalloprotease, and can be recognized by a pathological thrombocyte to target a specific site, so as to enhance the imaging contrast.
Triplet superconductivity in 3D Dirac semi-metal due to exchange interaction (vol 27, 025701, 2015)
(2015-02-25)
Rosenstein, Baruch
;
Shapiro, B. Ya
;
Li, Dingping
;
Shapiro, I.
;
電子物理學系
Experimental and Theoretical Study on the Thermal Decomposition of C3H6 (Propene)
(2015-02-26)
Hung, Wei-Chung
;
Tsai, Chieh-Ying
;
Matsui, Hiroyuki
;
Wang, Niann-Shiah
;
Miyoshi, Akira
交大e-News第181期-交通大學與滑鐵盧大學簽訂校級雙聯博士學位
(2015-02-26)
Secretariat
;
國立交通大學秘書室
RESOURCE ALLOCATION SERVER AND COMMUNICATION SYSTEM
(2015-02-26)
Wu Sau-Hsuan
;
Chao Hsi-Lu
;
Ko Chun-Hsien
A resource allocation server and a communication system are provided. The server receives location data of the access points (APs) and channel request data of the APs corresponding to the location data of the APs. The server groups the channel request data of the APs into clusters according to available physical channels of the APs and the channel request data of the APs. The server allocates the available physical channels of the APs for the channel request data of the APs and transmission power configurations on each of the allocated physical channels of the APs according to the channel request data and the location data of the APs in each of the clusters. The server transmits allocated results of the allocated physical channels of the APs for the channel request data of the APs and the transmission power configurations on each of the allocated physical channels of the APs.
ACCESS POINT AND COMMUNICATION SYSTEM FOR RESOURCE ALLOCATION
(2015-02-26)
Wu Sau-Hsuan
;
Chao Hsi-Lu
;
Ko Chun-Hsien
An access point (AP) and a communication system are provided. The access point comprises at least but not limited to a transceiver, a network connection unit, and a processing circuit. The processing circuit is configured for the following steps. The AP receives channel access requests of the user equipments (UEs) from the UEs. Next, the AP transmits a channel request data according to QoS requirements of plurality of channel access requests of the UEs to the server. Afterward, the AP receives resource allocation information associated with the channel request data from the server, wherein the resource allocation information comprises an allocated result of physical channels and transmission power configurations. Subsequently, the AP allocates the physical channels to the UEs according to the QoS requirements of the channel access requests of the UEs and the resource allocation information.
A 16-mW 8-Bit 1-GS/s Digital-Subranging ADC in 55-nm CMOS
(2015-03-01)
Chung, Yung-Hui
;
Wu, Jieh-Tsorng
;
電機工程學系
;
Department of Electrical and Computer Engineering
This paper presents a digital-subranging (sub-R) analog-to-digital conversion (ADC) architecture to improve the operation speed of sub-R ADCs. Long latency between coarse and fine conversions will slow down the conventional sub-R ADCs. The proposed digital-sub-R uses digital circuits to implement the sub-R function and shorten this latency, thus benefits the CMOS scaling. Furthermore, the dynamic comparators are used to save more ADC power consumption. Their accuracy is improved by the proposed pseudodifferential offset calibration loop. The digital-sub-R also helps to reduce the dynamic offset of the fine comparators caused by the input common-mode variation. Fabricated using a 55-nm CMOS technology, the reported 8-bit 1-GS/s ADC consumes only 16 mW from a 1.2 V supply. Measured signal-to-noise ratio (SNR) and spurious free dynamic range (SFDR) are 46 and 55 dB, respectively. Measured effective number of bits (ENOB) is seven bits at 10-MHz input frequency. At Nyquist input, the ENOB performance of 6.3 bits is still maintained. Its figure-of-merit is 197-fJ/conversion-step.
Job-Level Alpha-Beta Search
(2015-03-01)
Chen, Jr-Chang
;
Wu, I-Chen
;
Tseng, Wen-Jie
;
Lin, Bo-Han
;
Chang, Chia-Hui
An approach called generic job-level (JL) search was proposed to solve computer game applications by dispatching jobs to remote workers for parallel processing. This paper applies JL search to alpha-beta search, and proposes a JL alpha-beta search (JL-ABS) algorithm based on a best-first search version of MTD(f). The JL-ABS algorithm is demonstrated by using it in an opening book analysis for Chinese chess. The experimental results demonstrated that JL-ABS reached a speed-up of 10.69 when using 16 workers in the JL system.