Browsing by Issue Date, starting with "2012-06-28"

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PHOTOELECTRIC DEVICES HAVING INHOMOGENEOUS POLARIZATION SELECTIVITY AND THE MANUFACTURING METHOD THEREOF
(2012-06-28)
Tien Chung-Hao
;
Lan Tzu-Hsiang
;
Li Jie-En
The present invention provides an optical device having inhomogeneous polarization selectivity. The optical device includes a transparent substrate having a surface, a first optical element and a second optical element. The first and the second elements are disposed on the surface. The first optical element has a first polarization selectivity at least within a full visible frequency domain. The second optical element has a second polarization selectivity at least within a full visible frequency domain. The first and the second polarization selectivities have different orientations.
MICROFLUIDIC SYSTEM AND BUBBLE MANIPULATION METHOD THEREOF
(2012-06-28)
FAN SHIH-KANG
;
TSAI LING-PIN
A microfluidic system includes a first electrode plate having a first substrate and a first electrode layer, wherein the first electrode layer has a plurality of continuously-arranged driving electrodes; a second electrode plate having a second substrate and a second electrode layer, wherein the second electrode layer corresponds to the first electrode layer; a spacing structure disposed between the first electrode plate and the second electrode plate so as to define a fluidic space therebetween; at least one fluid manipulatably received in the fluidic space, wherein the fluid has at least one gas bubble having a reaction gas thereinside, and the gas bubble is an enclosure structure. An electric potential is applied for driving the fluid and then controlling the position of the gas bubble. A gas breakdown voltage is applied to electrically discharge the gas in the gas bubble.
Yellow Fluorosulfide Phosphors for Light-Emitting Diode and Preparation Method Thereof
(2012-06-28)
CHEN Teng-Ming
;
Wu Yun-Chen
A novel yellow phosphor of a fluorosulfide having a chemical formula of (A1-x-yCexBy)2Ce1-zSr2F4S2 and a tetragonal crystal phase is disclosed, wherein A and B are different rare earth metals other than Ce, the values of x, y, z are 0
DIGITAL-TO-ANALOG CONVERSION DEVICE
(2012-06-28)
CHOU FANG-DING
;
HUNG CHUNG-CHIH
A digital-to-analog conversion device is disclosed. The digital-to-analog conversion device comprises a variable delay buffer circuit and a plurality of synchronization circuits. The buffer circuit receives a digital signal with a plurality of bits and sequentially outputs a plurality of first complementary digital signal sets delayed according to the order of from MSB to LSB. Each synchronization circuit receives the first complementary digital signal set and a clock signal, uses the clock signal as the timing reference of the first complementary digital signal set, and outputs a second complementary digital signal set corresponding to the first complementary digital signal set to a digital-to-analog conversion unit, so as to convert the second complementary digital signal sets into an analog signal. The present invention uses the delays respectively corresponding to different input bits to control the timing of current switches, whereby the transient glitches are reduced.
The role of cytochrome c oxidase subunit Va in non-small cell lung carcinoma cells: association with migration, invasion and prediction of distant metastasis
(2012-06-29)
Chen, Wen-Liang
;
Kuo, Kuang-Tai
;
Chou, Teh-Ying
;
Chen, Chien-Lung
;
Wang, Chih-Hao
Background: Lung cancer is one of the most lethal malignancies worldwide, but useful biomarkers of lung cancer are still insufficient. The aim of this study is to identify some membrane-bound protein(s) associated with migration and invasion in human non-small cell lung cancer (NSCLC) cells. Methods: We classified four NSCLC cell lines into high and low migration/invasion groups by Transwell and Matrigel assays. Using two-dimensional gel electrophoresis and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS), we identified 10 membrane-associated proteins being significantly overexpressed in the high migration/invasion group. The expression of the target protein in the four NSCLC cell lines was then confirmed by reverse transcription polymerase chain reaction (RT-PCR), western blot and immunostaining. RNA interference technique was applied to observe the influence of the target protein on migration and invasion. Gelatin zymography was also performed to evaluate the activities of matrix metalloproteinase (MMP)-2 and MMP-9. Expression condition of the target protein on surgical specimens was further examined by immunohistochemical staining and the clinicopathologic data were analyzed. Results: We identified a mitochondria-bound protein cytochrome c oxidase subunit Va (COX Va) because of its abundant presence found exclusively in tumorous areas. We also demonstrated that migration and invasion of NSCLC cells decreased substantially after knocking down COX Va by siRNA. Meanwhile, we found a positive correlation between COX Va expression, Bcl-2 expression and activities of MMP-2 and MMP-9 in NSCLC cells. Immunohistochemical staining of surgically resected lung adenocarcinomas in 250 consecutive patients revealed that strong COX Va expression was found in 54.8% (137/250) of patients and correlated positively with the status of lymph node metastasis (P = 0.032). Furthermore, strong COX Va expression was associated with the presence of distant metastasis (P = 0.033). Conclusions: Our current study showed that COX Va may play a role in migration and invasion of NSCLC cells and can be used as a biomarker to predict aggressiveness of NSCLC.
Study of the reactive excited-state dynamics of delipidated bacteriorhodopsin upon surfactant treatments
(2012-06-29)
Cheng, Chi-Wen
;
Lee, Yuan-Pern
;
Chu, Li-Kang
;
應用化學系
;
應用化學系分子科學碩博班
The dynamics of the reactive excited-state of bacteriorhodopsin treated with various surfactants have been investigated through the measurement of pump-probe absorption spectra. Upon excitation of bR at 570 nm in the presence of ionic surfactants CTAB and SDS, the lifetime of the reactive excited-state of the all-trans protonated Schiff base, probed at 460 nm, was observed to increase up to 20%, whereas an insignificant change was observed upon addition of neutral surfactant C6E2. Measurements of steady-state absorption spectra, fluorescence, and circular dichroism indicated that the bR suspensions retain their trimeric configuration with partial delipidation. This removal of lipids causes a structural alteration and the varied excited-state dynamics. (C) 2012 Elsevier B. V. All rights reserved.
Hierarchical facility network planning model for global logistics network configurations
(2012-07-01)
Sheu, Jiuh-Biing
;
Lin, Alex Y. -S.
;
運輸與物流管理系註：原交通所+運管所
;
Department of Transportation and Logistics Management
This paper presents a novel hierarchical network planning model for global logistics (GLs) network configurations. The proposed method, which is based on the fundamentals of integer programming and hierarchical cluster analysis methods, determines the corresponding locations, number and scope of service areas and facilities in the proposed GLs network. Therein, a multi-objective planning model is formulated that systematically minimizes network configuration cost and maximizes both operational profit and the customer satisfaction rate. Particularly, potential risk-oriented costs, such as macro-environmental-risk and micro-operational-risk costs are considered in the proposed model. Numerical results indicate that the overall system performance can be improved by up to 11.52% using the proposed approach. (C) 2011 Elsevier Inc. All rights reserved.
讀《毛澤東與後毛澤東時代（1949－2009）：另一種歷史書寫》
(深河出版有限公司, 2012-07-01)
胡清雅
Positive sampling artifacts of organic carbon fractions for fine particles and nanoparticles in a tunnel environment
(2012-07-01)
Zhu, Chong-Shu
;
Tsai, Chuen-Jinn
;
Chen, Sheng-Chieh
;
Cao, Jun-Ji
;
Roam, Gwo-Dong
"The positive artifacts in particulate organic carbon fractions for fine particles (PM2.5) and nanoparticles (PM0.1) were characterized in a tunnel environment by using the QBQ (a quartz filter behind a quartz filter) method. The OC concentrations of the backup quartz filters ranged from 3.56 to 11.38 mu g m(-3) with the average of 6.70 mu g m(-3) for PM2.5, and from 2.62 to 7.27 mu g m(-3) With the average of 4.64 mu g m(-3) for PM0.1. The most abundant species on the backup quartz filters was OC1 for both PM2.5 and PM0.1, accounting for 56.9% and 41.1% of the measured organic carbon, respectively. Most of EC fractions (EC1-EC3) on the backup filters for PM2.5 and PM0.1 were below the minimum detection limit. Therefore, only OC contributed to positive artifacts distinctly with the average percentage of 21.7% and 48.0% for PM2.5 and PM0.1, respectively. The artifacts for four organic carbon fractions ranged from 36.1% (OC1) to 4.4% (OC4) for PM2.5 and from 68.0% (OC1) to 31.9% (OC4) for PM0.1]. The uncorrected OC/EC ratios on the front quartz filters were higher by as much as 30% and 107% for PM2.5 and PM0.1 than those corrected for positive organic artifacts, respectively. That is, much higher percentage of positive artifacts was found for PM0.1 DC fractions on the front filters. The comparison of the present and previous studies shows that OC positive artifacts vary widely among various PM fractions and sampling sites attributing to many factors that are worth investigating in the future. (C) 2012 Elsevier Ltd. All rights reserved."
High-Performance ZnO Thin-Film Transistors with Location-Controlled Crystal Grains Fabricated by Low-Temperature Hydrothermal Method
(2012-07-01)
Yang, Po-Yu
;
Wang, Jyh-Liang
;
Tsai, Wei-Chih
;
Chang, Yu-Cheng
;
Wang, Shui-Jinn
In this paper, high-performance bottom-gate (BG) thin-film transistors (TFTs) with zinc oxide (ZnO) artificially location-controlled lateral grain growth have been prepared via low-temperature hydrothermal method. For the proper design of source/drain structure of ZnO/Ti/Pt thin films, the grains can be laterally grown from the under-cut ZnO beneath the Ti/Pt layer. Consequently, the single one vertical grain boundary perpendicular to the current flow will be produced in the channel region as the grown grains from the source/drain both sides are impinged. As compared with the conventional sputtered ZnO BG-TFTs, the proposed location-controlled hydrothermal ZnO BG-TFTs (W/L = 250 mu m/10 mu m) demonstrated the higher field-effect mobility of 6.09 cm(2)/V.s, lower threshold voltage of 3.67 V, higher on/off current ratio above 10(6), and superior current drivability, reflecting the high-quality ZnO thin films with less grain boundary effect in the channel region.
編案－亞洲現代思想計畫
(深河出版有限公司, 2012-07-01)
陳光興
Using influence strategies to advance supplier delivery flexibility: The moderating roles of trust and shared vision
(2012-07-01)
Chang, Kuo-Hsiung
;
Huang, Hsu-Feng
;
管理科學系
;
Department of Management Science
This study explores trust and shared vision moderate the relationship between the manufacturer's influence strategies and supplier delivery flexibility. The major components of this study are based on reviews of marketing research that focus on influence strategies and literature regarding supply chain flexibility. The results show that the request strategy has a negative effect on supplier delivery flexibility. The model predicts that trust and shared vision have an asymmetrical effect across recommendations, information exchange, and promises influence strategies. When the relationship contains a highly shared vision, a manufacturer's use of the recommendation influence strongly promotes supplier delivery flexibility, whereas the use of a promise strategy depresses supplier delivery flexibility. In contrast, an information exchange strategy will have a negative effect, but the promise strategy will have a positive effect on supplier delivery flexibility when trust is high. This paper contributes to guidelines for management on how to align their suppliers for delivery flexibility to respond quickly to customer demands. (C) 2011 Elsevier Inc. All rights reserved.
探尋常民生活的心靈史－讀《尋找大範男孩》
(深河出版有限公司, 2012-07-01)
劉雅芳
具有非均勻偏振選擇性之光學元件及其製作方法
(2012-07-01)
田仲豪
;
藍子翔
;
李杰恩
提出一種具有非均勻偏振選擇性之光學元件，其包含有一透光基材、一第一光學片和一第二光學片。透光基材具有一表面；該第一和該第二光學片配置於該表面上，對電磁波偏振方向至少於可見光全頻域具有篩選性，且該第一及該第二光學片的篩選方向不同。
Exposure assessment and engineering control strategies for airborne nanoparticles: an application to emissions from nanocomposite compounding processes
(2012-07-01)
Tsai, Candace S. -J.
;
White, David
;
Rodriguez, Henoc
;
Munoz, Christian E.
;
Huang, Cheng-Yu
"In this study, nanoalumina and nanoclay particles were compounded separately with ethylene vinyl acetate (EVA) polymer to produce nanocomposites using a twin-screw extruder to investigate exposure and effective controls. Nanoparticle exposures from compounding processes were elevated under some circumstances and were affected by many factors including inadequate ventilation, surrounding air flow, feeder type, feeding method, and nanoparticle type. Engineering controls such as improved ventilation and enclosure of releasing sources were applied to the process equipment to evaluate the effectiveness of control. The nanoparticle loading device was modified by installing a ventilated enclosure surrounding the loading chamber. Exposures were studied using designed controls for comparison which include three scenarios: (1) no isolation; (2) enclosed sources; and (3) enclosed sources and improved ventilation. Particle number concentrations for diameters from 5 to 20,000 nm measured by the Fast Mobility Particle Sizer and aerodynamic particle sizer were studied. Aerosol particles were sampled on transmission electron microscope grids to characterize particle composition and morphology. Measurements and samples were taken at the near-and far-field areas relative to releasing sources. Airborne particle concentrations were reduced significantly when using the feeder enclosure, and the concentrations were below the baseline when two sources were enclosed, and the ventilation was improved when using either nanoalumina or nanoclay as fillers."
CHARACTERISTICS OF ELECTROMAGNETIC INDUCTION BY MOVING FERROFLUIDS
(2012-07-01)
Chen, Ching-Yao
;
Wang, Sheng-Yan
;
Wu, Chi-Ming
;
Lin, Chung-Hao
;
Huang, Kuo-An
We have demonstrated the capabilities to catch the signals of induced electromotive force (EMF). The characteristics of EMF signals are analyzed systematically. Influences of volumes, sizes and travelling velocities of ferrofluids on the magnitudes and wave spans of the signals are presented. In addition, simulations of the induction fields are carried out to provide the physical insights of the induced EMF signals. The signals can be potentially applied as diagnostic characteristics in the measurements of travelling velocities or sizes of moving ferrofluid drops or slugs.
Cosputtered Cu/Ti Bonded Interconnects With a Self-Formed Adhesion Layer for Three-Dimensional Integration Applications
(2012-07-01)
Hsu, Sheng-Yao
;
Chen, Hsiao-Yu
;
Chen, Kuan-Neng
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
A novel 3-D bonding technology with cosputtered copper and titanium as bonding material is proposed and investigated based on the diffusion mechanism of cosputtered metal during bonding. This technology features a self-formed adhesion layer for Cu metal layers and interconnects. In addition, cosputtered Cu/Ti bonding exhibits good electrical performance as well as high resistance to multiple current stressing. With the advantages of fabrication efficiency and reliable bond quality, cosputtered Cu/Ti bonding technology presents the potential to be applied in 3-D integration.
Highly uniform low-power resistive memory using nitrogen-doped tantalum pentoxide
(2012-07-01)
Cheng, C. H.
;
Chen, P. C.
;
Wu, Y. H.
;
Wu, M. J.
;
Yeh, F. S.
Highly uniform current distributions of high resistance state (HRS) and low resistance state (LRS), low 0.6 pJ switching energy, fast 30 ns switching speed, and good 10(6) cycling endurance are achieved in Ni/GeOx/Ta2O5-yNy/TaN resistive random access memory (RRAM) devices. Such good performance is attributed to nitrogen-related acceptor level in Ta2O5-yNy for better hopping conduction, which leads to forming-free resistive switching and low self-compliance switching currents. (C) 2012 Elsevier Ltd. All rights reserved.
HMM-based ball hitting event exploration system for broadcast baseball video
(2012-07-01)
Chen, Hua-Tsung
;
Chou, Chien-Li
;
Tsai, Wei-Chin
;
Lee, Suh-Yin
;
Lin, Bao-Shuh P.
With the dramatic growth of fandom population, a considerable amount of research efforts have been devoted to baseball video processing. However, little work focuses on the detailed follow-ups of ball hitting events. This paper proposes a HMM-based ball hitting event exploration system for broadcast baseball video. Utilizing the strictly-defined layout of the baseball field, the proposed system first detects the game-specific spatial patterns in the field, such as the field lines, the bases, the pitch mound, etc. Then, the play region the currently camera-focused region of the baseball field is identified for frame type classification. Since the temporal patterns of presenting the game progress follow a prototypical order, we consider the classified frame types as observation symbols and recognize ball hitting events using HMM. Experiments conducted on broadcast baseball video show encouraging results in frame type classification and ball hitting event recognition. Three practical applications, including highlight clip extraction by user-designated query, storyboard construction, and similar event retrieval, are introduced to address the applicability of our system. (C) 2012 Elsevier Inc. All rights reserved.
半世紀以來沖繩思想史問題意識的轉折－與新崎盛暉對話
(深河出版有限公司, 2012-07-01)
孫歌
;
新崎盛暉
;
阮欣婷