Browsing by Issue Date, starting with "2013-12-16"

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女人們的流浪之歌：從日本作家林芙美子的自我流放談起
(2013-12-16)
蕭幸君
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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。
多點擷取及跨層之重播系統
(2013-12-16)
林盈達
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古佳育
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李佩璇
一種多點擷取及跨層之重播系統,係包括複數台流量擷取裝置,係設置於訊號發送端及訊號接收端周圍以擷取該訊號發送端及該訊號接收端之間的流量資訊;還包括流量演算裝置,係接收流量擷取裝置所擷取之流量資訊,並利用該些流量擷取裝置與該訊號發送端或該訊號接收端之間的之訊號强度之權重値進行關聯性運算以產生出高真實度之流量資訊進而傳輸至事件分析裝置,其中,事件分析裝置依據自該流量演算裝置所接收之高真實度之流量資訊產生事件資訊並傳輸至重播裝置;亦包括跨層調整裝置,係與重播裝置協同運作以調整重播作業之資訊內容,俾完整地建立上層協定及下層協定。
A hybrid temporal and spatial speckle-suppression method for laser displays
(2013-12-16)
Deng, Qing-Long
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Lin, Bor-Shyh
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Wu, Pei-Jung
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Chiu, Kuan-Yao
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Fan, Ping-Lin
We propose a system that reduces laser display speckles by vibrating the light pipe. A small displacement of the light pipe appears to allow the total reflection of the laser, thereby resulting in a homogenized speckle field that changes with time. In this case, the speckle interference generated by the pattern projected by the laser through the light pipe destroys the spatial homogenization of the laser beams when the light pipe is vibrated. Moreover, when the light pipe begins the sequential vibration, the phases and paths of the beams are changed after the beams traverse the light pipe. Consequently, temporal speckle wavefront superposition can homogenize the luminous intensity distribution of the speckle pattern. This process reduces the speckle contrast to less than 4% while maintaining a luminous intensity of greater than 70%. (C) 2013 Optical Society of America
可降低背景光雜訊之發光二極體通訊裝置
(2013-12-16)
鄒志偉
;
葉建宏
;
劉昱夆
;
黃博彥
本發明提供一種可降低背景光雜訊之發光二極體通訊裝置,包括至少一發光二極體訊號發射器,可發出一曼徹斯特電訊號,並將曼徹斯特電訊號傳遞至一光接收器,使光接收器接收曼徹斯特電訊號,其中曼徹斯特電訊號係利用曼徹斯特碼編碼而成。本發明可藉由曼徹斯特編碼套用於發光二極體通訊裝置中,以發出曼徹斯特電訊號,可提高訊號品質以及降低訊號雜訊。
Analysis of the depth of field of integral imaging displays based on wave optics
(2013-12-16)
Luo, Cheng-Gao
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Xiao, Xiao
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Martinez-Corral, Manuel
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Chen, Chih-Wei
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Javidi, Bahram
In this paper, we analyze the depth of field (DOF) of integral imaging displays based on wave optics. With considering the diffraction effect, we analyze the intensity distribution of light with multiple microlenses and derive a DOF calculation formula for integral imaging display system. We study the variations of DOF values with different system parameters. Experimental results are provided to verify the accuracy of the theoretical analysis. The analyses and experimental results presented in this paper could be beneficial for better understanding and designing of integral imaging displays. (C) 2013 Optical Society of America
Structure and properties of gas-nitrided nanostructured FeAlMnC alloy
(2013-12-16)
Chen, Po-Chih
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Chao, Chuen-Guang
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Juang, Jenh-Yih
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Liu, Tzeng-Feng
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材料科學與工程學系
The as-quenched Fe-9Al-28Mn-1.8C (in wt.%) alloy was directly gas-nitrided at 500 degrees C for 8 h, resulting in a similar to 30 mu m-thick nitrided layer. The nitrided layer consists predominantly of nano-crystalline AlN with a small amount of Fe4N. The nitrogen concentration at surface was extremely high up to similar to 17 wt.% (similar to 41 at.%). Consequently, the surface microhardness (1700 Hv), substrate hardness (550 Hv), ductility (33.2%) and corrosion resistance in 3.5% NaCl solution of the present gas-nitrided alloy are far superior to those obtained previously for the optimally gas-nitrided or plasma-nitrided high-strength alloy steels, as well as martensitic and precipitation-hardening stainless steels. Moreover, it is very novel that the nitrided layer almost remained coherent and adhered well with the matrix after tensile test. Additionally, the present gas nitriding appeared to overcome the edge effects commonly encountered in plasma nitriding treatments for metals. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
Synthesis of porous micro-sized titania cages and their photocatalytic property
(2013-12-16)
Tsai, M. -C.
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Yang, M. -H.
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Chang, Y. -W.
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Tzeng, J. -K.
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Lee, C. -Y.
Micro-sized TiO2 cage consisted of anatase nanopartides on the edges of each cube, was synthesized using TTIP as the reagent and NaF submicrometer sized cubes as the template. When a salt of cube was adopted as the template, the reactants prefer to grow on the active sites, edges and corners of the cube, after removing the NaF template, the skeleton of the cube remain as the cage-shaped materials. The hierarchical structures with nano-sized anatase particles and micro scaled cage architecture markedly enlarge the surface area and enhance the light harvesting by light scattering of TiO2 frame, resulting in great photo-catalytic performance, which leads to the photo-degradation of methylene blue by 40% higher than that was achieved by crushed nanoparticles. (C) 2013 Elsevier B.V. All rights reserved.
掺碳氮化矽薄膜及其製造方法與裝置
(2013-12-16)
呂志鵬
;
凃弘恩
;
邱維剛
本發明提出一種摻碳氮化矽薄膜及其製造方法與裝置。該摻碳氮化矽薄膜係利用具有選自雙(二甲基胺基)二乙基矽烷、N,N-二甲基三甲基矽胺以及具有氮矽鍵結的一環狀結構其中至少之一的前驅物(precursor)所製成。該製造摻碳氮化矽薄膜的方法包含：提供具有選自雙(二甲基胺基)二乙基矽烷、N,N-二甲基三甲基矽胺或具有氮矽鍵結的環狀結構其中至少之一的前驅物來製備摻碳氮化矽薄膜。該製造摻碳氮化矽薄膜的裝置，包含：反應室；以及與該反應室相連接的容器，該容器含有如前所述的該前驅物。
Bound-to-continuum absorption with tunneling in type-II nanostructures: a multiband source-radiation approach
(2013-12-16)
Hsieh, Chi-Ti
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Chang, Shu-Wei
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光電工程學系
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Department of Photonics
We convert calculations of the bound-to-continuum absorption in type-II semiconductor quantum wells into an equivalent source-radiation problem under the effective-mass approximation with band mixing. Perfectly matched layers corresponding to the eight-band Luttinger-Kohn Hamiltonian are introduced to incorporate the effect of quasi-bound states in open regions. In this way, the interplay between quantum tunneling and optical transitions is fully taken into account. From resulted lineshapes of the Fano resonance, we can evaluate tunneling rates of these metastable states and related absorption strengths relative to those of the continuum. The approach here is useful in estimations of carrier extraction rates from type-II nanostructures for photovoltaic applications. (C) 2013 Optical Society of America
High efficiency buck-boost power converter and method of controlling
(2013-12-17)
Chen Ke-Horng
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Wu Wei-Quan
;
Ho Hsin-Hsin
A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.
Thin film solar cell with graded bandgap structure
(2013-12-17)
Chang Chun-Yen
A thin film solar cell with a graded bandgap structure comprises a front contact, a first light absorption layer, a transition layer, a second light absorption layer and a back contact. The first light absorption layer is formed on the front contact, the transition layer is formed on the first light absorption layer, the second light absorption layer is formed on the transition layer, and the back contact is formed on the second light absorption layer, wherein the transition layer has a graded bandgap, which is made by alternating a layer of the first superlattice layers, having a first bandgap, with a layer of the second superlattice layers, having a second bandgap, in a tandem arrangement, based on the condition that the thickness of each layer of the first and the second superlattice layers is varied increasing, decreasing or increasing first and then decreasing.
变异血红素的快速分析方法
(2013-12-18)
吴东昆
;
王裕国
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施木青
;
张煜昌
一种变异血红素的快速分析方法，包含：(a)提供血液样品；(b)快速分离血液样品中的血红素；(c)通过基质辅助激光解析电离飞行时间质谱仪(MALDI-TOF)，以直线型(Linear mode)分析方法，判定步骤(b)的产物是否含有变异血红素，并选择性地执行以下步骤；(d)于超声波震荡环境下，以酶水解步骤(b)的产物；以及(e)通过MALDI-TOF，以反射型(Reflection mode)分析方法，经由比对软件来判定步骤(d)的产物所含的变异血红素的类型。此方法更包含于步骤(e)之后，通过串联质谱技术(质谱-质谱技术)(Tandem mass spectrometry(MS/MS))来分析变异血红素的部分氨基酸序列。
SYSTEM AND METHOD FOR ESTIMATING CONSTRUCTION DURATION
(2013-12-19)
Wang Wei-Chih
;
Chen Cheng-Yi
;
Weng Shao-Wei
A system and method for estimating construction duration. The system includes a three-dimensional (3D) building information model (BIM) module, a duration estimation module, and a 4D BIM module. The 3D BIM module constructs a 3D BIM based on inputted modeling instructions and generates quantity information corresponding to the 3D BIM. The duration estimation module calculates duration information for construction work based on inputted construction condition information and the quantity information of the 3D BIM produced. The 4D BIM module constructs a 4D BIM based on the 3D BIM and the duration information. Thus, the present invention can automatically calculate the quantity of building materials, estimate the construction duration, establish a construction progress table, and demonstrate the construction progress of the 4D BIM in an animated way, replacing the traditional way of manually processing information for duration estimation.
Infrared Spectra of the 1-Pyridinium (C5H5NH+) Cation and Pyridinyl (C5H5NH and 4-C5H6N) Radicals Isolated in Solid para-Hydrogen
(2013-12-19)
Golec, Barbara
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Das, Prasanta
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Bahou, Mohammed
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Lee, Yuan-Pern
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應用化學系
Protonated pyridine and its neutral counterparts (C5H6N) are important intermediates in organic and biological reactions and in the atmosphere. We have recorded the IR absorption spectra of the 1-pyriclinium (C5H5-NH+) cation, 1-pyridinyl (C5H5NH), and 4-pyridinyl (4-C5H6N) produced on electron bombardment during matrix deposition of a mixture of pyridine (C5H5N) and p-H-2 at 3.2 K; all spectra were previously unreported. The IR features of C5H5NH+ diminished in intensity after the matrix was maintained in darkness for 15 h, whereas those of C5H5NH and 4-C5H6N radicals increased. Irradiation of this matrix with light at 365 nm diminished lines of C5H5NH+ and C but enhanced lines of 4-C5H6N slightly, whereas irradiation at 405 nm diminished lines of 4-C5H6N significantly. Observed wavenumbers and relative intensities of these species agree satisfactorily with the anharmonic vibrational wavenumbers and IR intensities predicted with the B3LYP/6-31++G(d,p) method. Assignments of C5H5NH and 4-C5H6N radicals were further supported by the observation of similar spectra when a CI2/C5H5N5N/p-H-2 matrix was irradiated first at 365 nm and then with IR light to generate H atoms to induce the H + C5H5N reaction.
The Synthesis of Rigid Polycyclic Structures for the Study of Diatropic or Steric Effects of a Phenyl Ring on CF Bond
(2013-12-20)
Chang, Yung-Yu
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Ho, I-Ting
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Ho, Tse-Lok
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Chung, Wen-Sheng
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應用化學系
Polycyclic compounds 1a-c were synthesized to study the diatropic effects of a flanking phenyl ring on nearby CH and CF bonds. F-19 NMR spectra of 1b and 1c were strongly deshielded compared with those of the ring-opened compounds 3b, 7b, and 7c. DMol3 calculations on 1a-c provided quantitative bond lengths and torsional angles to support the conclusion that the downfield shifts in the F-19 NMR spectra are mainly due to steric interactions between the CF bonds and the pi clouds of the phenyl ring(s).
交大e-News第154期
(2013-12-20)
Secretariat
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國立交通大學秘書室
The effect of mode excitations on the absorption enhancement for silicon thin film solar cells
(2013-12-21)
Lin, Albert
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Zhong, Yan-Kai
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Fu, Ssu-Ming
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電子工程學系及電子研究所
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Department of Electronics Engineering and Institute of Electronics
Periodic gratings on solar cell back reflectors are an alternative to randomly textured surfaces to provide absorption enhancement. Theoretically, it is impossible to excite quasi-guided modes at every wavelength for a given grating geometry and the broad band enhancement can only be achieved by strong absorption peaks at several wavelengths. Therefore, the critical issue is how to maximize the short circuit current using a limited number of discrete quasi-guided modes. In this work, a common dielectric-semiconductor-dielectric-metal solar cell structure is investigated. It is found that although the number of guided mode peaks has pronounced effect on the solar cell short circuit current, the geometry resulting in the highest short circuit current does not coincide with the geometry leading to the most supported modes. It is also found that high-Q modes are always resulted from global optimization for TE incidence, while low-Q modes are resulted for TM incidence on one-dimensional gratings without a dielectric spacer. Besides, a properly designed and configured dielectric spacer can provide >40% improvement in short circuit current. It is therefore suggested for solar cells with metallic back reflectors, dielectric spacer should be included, and the texture should be formed on the dielectric spacer itself rather than on the metal. Finally, the optimization of the mode quality is proved to be critical in all cases, in addition to the number of supported modes. (C) 2013 AIP Publishing LLC.
Mechanism of power consumption inhibitive multi-layer Zn:SiO2/SiO2 structure resistance random access memory
(2013-12-21)
Zhang, Rui
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Tsai, Tsung-Ming
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Chang, Ting-Chang
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Chang, Kuan-Chang
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Chen, Kai-Huang
In this paper, multi-layer Zn:SiO2/SiO2 structure is introduced to reduce the operation power consumption of resistive random access memory (RRAM) device by modifying the filament formation process. And the configuration of multi-layer Zn:SiO2/SiO2 structure is confirmed and demonstrated by auger electron spectrum. Material analysis together with conduction current fitting is applied to qualitatively evaluate the carrier conduction mechanism on both low resistance state and high resistance state. Finally, single layer and multilayer conduction models are proposed, respectively, to clarify the corresponding conduction characteristics of two types of RRAM devices. (C) 2013 AIP Publishing LLC.
以光阻熱回流處理技術於半導體基板上形成圖形的方法
(2013-12-21)
張翼
;
張家達
;
蕭世匡
本發明揭露一種以光阻熱回流處理技術於半導體基板上形成圖形的方法，藉由改善黃光微影技術，使用乾式蝕刻方法蝕刻出具有特定傾斜角度，具有平滑的蝕刻輪廓，具有均勻且具有高密度與高蝕刻深、寬之圖形化半導體基板。且以控制光阻熱回流技術之時間，可形成不同的圖形及間距，以達到半導體基板上之極小線寬的目的。
腹式呼吸特徵萃取方法及使用此方法的腹式呼吸特徵萃取系統
(2013-12-21)
蕭子健
;
徐如欣
本發明揭露一種無需使用一腹式呼吸標準模型，且一受測者亦無需接受一學習程序，便可萃取出此受測者之腹式呼吸特徵的腹式呼吸特徵萃取方法。藉由運算出對應至其所讀取之腹式呼吸訊號的複數個內在模式函數的方式，本發明之腹式呼吸特徵萃取方法接續運算出各內在模式函數的一尤拉角函數及一瞬時頻率函數。隨後，這些瞬時頻率函數便依序與一預先設定之零點臨界值範圍互相比較，且依據比較所得之結果，本發明之腹式呼吸特徵萃取方法萃取出其中一個瞬時頻率函數作為一腹式呼吸特徵函數。如此，此受測者之腹式呼吸特徵被可被萃取出來。