Browsing by Issue Date, starting with "2012-08-28"

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Infrared absorption of trans-1-chloromethylallyl and trans-1-methylallyl radicals produced in photochemical reactions of trans-1,3-butadiene and Cl-2 in solid para-hydrogen
(2012-08-28)
Bahou, Mohammed
;
Wu, Jen-Yu
;
Tanaka, Keiichi
;
Lee, Yuan-Pern
;
應用化學系
The reactions of chlorine and hydrogen atoms with trans-1,3-butadiene in solid para-hydrogen (p-H-2) were investigated with infrared (IR) absorption spectra. When a p-H-2 matrix containing Cl-2 and trans-1,3-butadiene was irradiated with ultraviolet light at 365 nm, intense lines at 650.3, 809.0, 962.2, 1240.6 cm(-1), and several weaker ones due to the trans-1-chloromethylallyl radical, center dot(CH2CHCH)CH2Cl, appeared. Observed wavenumbers and relative intensities agree with the anharmonic vibrational wavenumbers and IR intensities predicted with the B3PW91/6-311++g(2d,2p) method. That the Cl atom adds primarily to the terminal carbon atom of trans-1,3-butadiene is in agreement with the path of minimum energy predicted theoretically, but in contrast to the reaction of Cl + propene in solid p-H-2 [J. Amicangelo and Y.-P. Lee, J. Phys. Chem. Lett. 1, 2956 (2010)] in which the addition of Cl to the central C atom is favored, likely through steric effects in a p-H-2 matrix. A second set of lines, intense at 781.6, 957.9, 1433.6, 2968.8, 3023.5, 3107.3 cm(-1), were observed when the UV-irradiated Cl-2/trans-1,3-butadiene/p-H-2 matrix was further irradiated with IR light from a SiC source. These lines are assigned to the trans-1-methylallyl radical, center dot(CH2CHCH)CH3, produced from reaction of 1,3-butadiene with a H atom resulted from the reaction of Cl atoms with solid p-H-2 exposed to IR radiation. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4745075]
Lighting control module, video camera comprising the same and control method of the same
(2012-08-28)
Chuang Jen-Hui
;
Lo Kuo-Hua
;
Hung Pang-Chan
The present invention provides a lighting control module, a video camera comprising the same and a control method of the same. The video camera of the invention includes a sensing module, a light-emitting module and a control module. The sensing module receives a reflected light beam from a recording direction of the video camera, and generates an image of a scene in the recording direction. The light-emitting module emits a light toward the recording direction. Additionally, the lighting control module is connected to the light-emitting module for controlling the light-emitting module to periodically emit the light from a first brightness to a second brightness.
Manufacturing method for organic optoelectronic thin film
(2012-08-28)
Chen Fang-Chung
;
Chuang Ming-Kai
Disclosed is a manufacturing method for an organic optoelectronic thin film comprising the steps of providing a substrate and a first electrode; forming a semiconductor layer on the substrate, wherein the semiconductor layer includes polyethylene glycol (PEG); forming a conductive polymer layer on the first electrode; disposing the substrate and the semiconductor layer on the conductive polymer layer and adhering the semiconductor layer to the conductive polymer layer; and removing the substrate; and forming a second electrode on the semiconductor layer. A first adhesion between the semiconductor layer and the substrate is generated. A second adhesion between the semiconductor layer and the conductive polymer layer is generated. The second adhesion is greater than the first adhesion so that while the substrate is removed, the semiconductor layer and the conductive polymer layer are still adhered.
Method and apparatus of candidate list augmentation for channel coding system
(2012-08-28)
Chang Hsie-Chia
;
Liao Yen-Chin
The present invention discloses a candidate list augmentation apparatus with dynamic compensation in the coded MIMO systems. The proposed path augmentation technique in the present invention can expand the candidate paths derived from the detector to a distinct and larger list before computing the soft value of each bit. Consequently, the detector is allowed to deliver a smaller list, leading to reduction in computation complexity. Moreover, an additive correction term is introduced to dynamically compensate the approximation inaccuracy in the soft value generation, which improves the efficiency and performance of the coded MIMO systems.
Leaky-wave antenna capable of multi-plane scanning
(2012-08-28)
Chang Rong-Yuan
;
Chen Fu-Chiarng
A leaky-wave antenna capable of multi-plane scanning is provided. The leaky-wave antenna includes a substrate, a first antenna series, a second antenna series and a plurality of control units. The first antenna series intersects with the second antenna series to share a predetermined antenna unit among many antenna units. A part of the antenna units is connected in series to extend from a first and a second transmission lines of the predetermined antenna unit to compose the first antenna series, and the other antenna units are connected in series to extend from a third and a fourth transmission lines of the predetermined antenna unit to compose the second antenna series. The control units control the transmission paths between the first to the fourth transmission lines and the antenna units, and switch a leaky beam to different scanning planes, wherein the leaky beam scans with frequency variation through the antenna units.
半导体发光元件及其制作方法
(2012-08-29)
邱清华
;
黄泓文
;
郭浩中
;
卢廷昌
;
王兴宗
本发明有关一种半导体发光元件及其制作方法。半导体发光元件，包含基板、形成基板上的p型半导体层、形成p型半导体层上的发光层，及形成发光层上的n型半导体层，n型半导体层表面形成多数垂直基板方向且深度不小于0.2微米奈米柱体。藉加深奈米柱体深度可改变半导体发光元件发光场型，提升正向出光强度及发光效率。半导体发光元件制作方法包含：在第一基板上磊晶形成n型半导体层、发光层及p型半导体层；提供导电性基板，反转第一基板上磊晶结构层于导电基板上，使n型半导体层表面裸露；将多数球状颗粒散布n型半导体层表面做蚀刻遮罩；及以垂直导电基板方向蚀刻n型半导体层，形成多数深度不小于0.2微米奈米柱体。该制作方法可形成较大深度的奈米柱体，提高正向出光强度。
Light emitting semiconductor device
(2012-08-30)
Wang Chao-Hsun
;
Ll Zhen-Yu
;
Kuo Hao-Chung
A semiconductor light emitting device is disclosed, which comprises: a substrate having a first surface and a second surface; a first semiconductor conductive layer is disposed on the first surface of the substrate; an insert layer is disposed on the first semiconductor conductive layer; an active layer is disposed on the insert layer; a second semiconductor conductive layer is disposed on the active layer; a first electrode is disposed on the second semiconductor conductive layer; and a second electrode is disposed on the second surface of the substrate, in which the electric of the second electrode is opposite to that of the first electrode.
Dual cross-coupling LNA with forward body bias technique
(2012-08-30)
Chang, Chia-Hung
;
Wang, Tao
;
Jou, Christina F.
;
電機工程學系
;
Department of Electrical and Computer Engineering
A fully integrated low-power LNA with dual cross-coupling and forward body bias (FBB) techniques is presented. The first cross-coupling circuit is applied at the transconductance stage. By connecting body nodes to each other's source terminals, the body cross-coupling network forms the gate-driven and body-driven simultaneously input stage to gain its effective transconductance, which in turn improves the noise performance and decreases current consumption. In addition, the second capacitor cross-coupling configuration is applied at the input stage to form a feed-forward connection, which results in not only boosting the effective transconductance, but also reducing the influence of the gate noise from the input transistors as well. Moreover, to decrease the overall power consumption further, the FBB technique is employed to lower the supply voltage. The measured noise figure is lower than 3.38 dB and the core circuit consumes only 2.16 mW.
Inference of Biological Pathway from Gene Expression Profiles by Time Delay Boolean Networks
(2012-08-31)
Chueh, Tung-Hung
;
Lu, Henry Horng-Shing
;
統計學研究所
;
Institute of Statistics
One great challenge of genomic research is to efficiently and accurately identify complex gene regulatory networks. The development of high-throughput technologies provides numerous experimental data such as DNA sequences, protein sequence, and RNA expression profiles makes it possible to study interactions and regulations among genes or other substance in an organism. However, it is crucial to make inference of genetic regulatory networks from gene expression profiles and protein interaction data for systems biology. This study will develop a new approach to reconstruct time delay Boolean networks as a tool for exploring biological pathways. In the inference strategy, we will compare all pairs of input genes in those basic relationships by their corresponding p-scores for every output gene. Then, we will combine those consistent relationships to reveal the most probable relationship and reconstruct the genetic network. Specifically, we will prove that O(log n) state transition pairs are sufficient and necessary to reconstruct the time delay Boolean network of n nodes with high accuracy if the number of input genes to each gene is bounded. We also have implemented this method on simulated and empirical yeast gene expression data sets. The test results show that this proposed method is extensible for realistic networks.
マトリックス受動式有機発光ダイオード表示装置
(2012-08-31)
孟心飛
;
洪勝富
;
趙宇強
Dynamic regulation on energy landscape evolution of single-molecule protein by conformational fluctuation
(2012-08-31)
Lin, Chien Y.
;
Huang, Jung Y.
;
Lo, Leu-Wei
;
光電工程學系
;
Department of Photonics
We formalize a theory to help explore the effect of conformational fluctuation on the energy landscape evolution of single-molecule protein. Using this formalization, we investigate the photon emission from single photoactivated fluorescent protein. A bimodal regulation on the energy landscape evolution was discovered, and its origin was attributed to slow conformational fluctuations of the protein matrix.
陽明代表團參與2012世界模擬聯合國會議
(國立陽明大學, 2012-09)
陳昱穎
VIP DB - A viral protein domain usage and distribution database
(2012-09-01)
Chen, Ting-Wen
;
Gan, Richie Ruei-Chi
;
Wu, Timothy H.
;
Lin, Wen-Chang
;
Tang, Petrus
During the viral infection and replication processes, viral proteins are highly regulated and may interact with host proteins. However, the functions and interaction partners of many viral proteins have yet to be explored. Here, we compiled a Viral Protein domain DataBase (VIP DB) to associate viral proteins with putative functions and interaction partners. We systematically assign domains and infer the functions of proteins and their protein interaction partners from their domain annotations. A total of 2,322 unique domains that were identified from 2,404 viruses are used as a starting point to correlate GO classification, KEGG metabolic pathway annotation and domain-domain interactions. Of the unique domains, 42.7% have GO records, 39.6% have at least one domain-domain interaction record and 26.3% can also be found in either mammals or plants. This database provides a resource to help virologists identify potential roles for viral protein. All of the information is available at http://vipdb.cgu.edu.tw. (C) 2012 Elsevier Inc. All rights reserved.
A marcrolide glucosyltransferase promoting the synthesis of O-, S- and N-glucosidic compounds
(2012-09-01)
Li, Y. -K.
;
交大名義發表
;
National Chiao Tung University
"A marcrolide glucosyltransferase promoting the synthesis of O-, S- and N-glucosidic compounds"
(2012-09-01)
Li, Y. -K.
;
交大名義發表
;
National Chiao Tung University
Light-guide plate using periodical and single-sized microstructures to create a uniform backlight system
(2012-09-01)
Pan, Jui-Wen
;
Hu, Ya-Wen
;
光電系統研究所
;
生醫電子轉譯研究中心
;
Institute of Photonic System
Light-guide plates (LGPs) with aperiodic or size-varied microstructures are widely used in edge-lit light-source backlight systems for their high uniformity. In this Letter we designed a LGP with periodic and single-sized microstructures and analyzed the relationship between the holistic arrangement density of the microstructures and the uniformity. By controlling the holistic arrangement density of the microstructures, the uniformity could also be increased. (c) 2012 Optical Society of America
Improvement of a-Si1-xGex:H single-junction thin-film solar cell performance by bandgap profiling techniques
(2012-09-01)
Hsu, Hung-Jung
;
Hsu, Cheng-Hang
;
Tsai, Chuang-Chuang
;
資訊工程學系
;
Department of Computer Science
In this work, the effect of hydrogen dilution on the Ge content of the film and the effect of bandgap grading in the a-S1-xGex:H absorber near the p/i and the i/n interfaces on cell performance were discussed. The a-Si1-xGex:H single-junction solar cells were improved by employing both p/i grading and i/n grading. The i/n grading increased the V-OC and the FF while it also reduced the J(SC) as compared to the cell without grading. Presumably the potential gradient established by the i/n grading facilitates the hole transport hereby improved by the FF. On the contrary, the potential barrier established by the p/i grading seemed to limit the cell performance and constrain the p/i grading width below 20 nm due to the drop in FF and J(SC). Combining the effects of bandgap grading on the V-OC, J(SC) and FF, the suitable thicknesses of the p/i and the i/n grading were 20 nm and 45 nm, respectively. Finally, the grading structures accompanied with further optimization in doped layers were integrated to achieve a cell efficiency of 8.59%. (C) 2012 Elsevier B.V. All rights reserved.
Web-based undergraduate chemistry problem-solving: The interplay of task performance, domain knowledge and web-searching strategies
(2012-09-01)
She, Hsiao-Ching
;
Cheng, Meng-Tzu
;
Li, Ta-Wei
;
Wang, Chia-Yu
;
Chiu, Hsin-Tien
This study investigates the effect of Web-based Chemistry Problem-Solving, with the attributes of Web-searching and problem-solving scaffolds, on undergraduate students' problem-solving task performance. In addition, the nature and extent of Web-searching strategies students used and its correlation with task performance and domain knowledge also were examined. We recruited a total of 183 undergraduate students, all of whom are taking the freshman chemistry course, to participate in the study to solve three chemistry tasks across a semester. Mandated screen-capture software captured participants' on-screen Web-searching processes were recorded every five seconds. Results demonstrated that students' problem-solving performance was significantly improved from task 1 to 3, and students with more domain knowledge outperformed students with less domain knowledge. Students with higher problem-solving performance employed more existing knowledge and metacognitive Web-searching strategies; and students with lower problem-solving performance employed more cognitive Web-searching strategies. In addition, students' problem-solving performance was correlated with their domain knowledge, use of existing knowledge, and metacognitive Web-searching strategies. Moreover, students' use of existing knowledge was the major factor for predicting their problem-solving performance according to the regression model. (C) 2012 Elsevier Ltd. All rights reserved.
評介Helen Tilley’s ＂Africa as a Living Laboratory: Empire, Development, and the Problem of Scientific Knowledge, 1870-1950＂
(國立陽明交通大學出版社, 2012-09-01)
李尚仁
「與洪席耶面對面：洪席耶作品與思想座談會」紀錄
(國立陽明交通大學出版社, 2012-09-01)
楊成瀚