Browsing by Issue Date, starting with "2014-04-09"

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劉康國客家話從家扎根
(2014-04-09)
王泓文
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Department of Communication and Technology
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傳播與科技學系
漫步於九讚頭的鄉間小道，一排排低矮的客家建築中，一座頗具現代感的鄉公所矗立在眼前。走進鄉公所，公務員們忙碌於各自的事務無暇抬頭，似乎沒有發現任何人，只有一個人微笑地揮手示意，他就是劉康國。
彭瑞雲　一顆野薑花粽讓你想到內灣
(2014-04-09)
尤意茹
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Department of Communication and Technology
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傳播與科技學系
內灣是位於新竹縣橫山鄉靠山區的小聚落，曾經因礦業而繁榮興盛，但也跟大多數的礦區一樣，因為礦產資源殆盡而沒落，年輕人紛紛出外到大都市打拚。內灣媳婦彭瑞雲從學校退休後，原本跟著丈夫經營內灣唯一的一間藥局，夫妻倆發現許多老人常裝病只是為了讓離鄉的年輕人回家，感到十分不捨，於是下定決心要改造內灣，為小鎮找回充沛的生命力，藉著政府推動一鄉一特色的機會，彭瑞雲也擔任內灣社區發展協會的第一屆理事長，最後發掘了「野薑花粽」這個深具客家與地方特色的美食。
董秀珍　認識客家，認同客家，喜歡客家
(2014-04-09)
鄭豪
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Department of Communication and Technology
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傳播與科技學系
「同學，你先慢慢參觀，等一下我忙完馬上就來。」不管是一個人獨自參觀，或者是一群遊客，董秀珍總是熱情地接待跟導覽劉興欽老師的漫畫作品。原是宜蘭三星人的董秀珍，因為工作的緣故一直都是待在台北，後來因為想到新竹這邊只剩下公婆，於是她毅然決然的搬回了新竹橫山鄉這個客家文化濃厚的地方，成為當地客家文化的一份子。她接下在地文化推廣的工作，於是就有了劉興欽漫畫館的誕生。
Improved Efficiency of a Large-Area Cu(In,Ga)Se-2 Solar Cell by a Nontoxic Hydrogen-Assisted Solid Se Vapor Selenization Process
(2014-04-09)
Wu, Tsung-Ta
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Hu, Fan
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Huang, Jyun-Hong
;
Chang, Chia-ho
;
Lai, Chih-chung
A nontoxic hydrogen-assisted solid Se vapor selenization process (HASVS) technique to achieve a large-area (40 X 30 cm(2)) Cu(In,Ga)Se-2 (CIGS) solar panel with enhanced efficiencies from 7.1 to 10.8% (12.0% for active area) was demonstrated. The remarkable improvement of efficiency and fill factor comes from improved open circuit voltage (V-oc) and reduced dark current due to (1) decreased interface recombination raised from the formation of a widened buried homojunction with n-type Cd-cu participation and (2) enhanced separation of electron and hole carriers resulting from the accumulation of Na atoms on the surface of the CIGS film. The effects of microstructural, compositional, and electrical characteristics with hydrogen-assisted Se vapor selenization, including interdiffusion of atoms and formation of buried homojunction, were examined in detail. This methodology can be also applied to CIS (CuInSe2) thin film solar cells with enhanced efficiencies from 5.3% to 8.5% (9.4% for active area) and provides a facile approach to improve quality of CIGS and stimulate the nontoxic progress in the large scale CIGS PV industry.
Synthesis and Characterization of One-Dimensional Ag-Doped ZnO/Ga-Doped ZnO Coaxial Nanostructure Diodes
(2014-04-09)
Chiu, Hsien-Ming
;
Chang, Yu-Tsui
;
Wu, Wen-Wei
;
Wu, Jenn-Ming
;
材料科學與工程學系
In the pursuit of high injection current diode nanodevices, entire one-dimensional (1D) ZnO coaxial nanostructures with p-n homojunctions is one of the ideal structures. In this study, we synthesized entire 1D ZnO-based coaxial homojunction diodes with p-type Ag-doped ZnO (SZO) nanostructure shells covering n-type Ga-doped ZnO (GZO) nanopagoda (NPG) cores by a metal organic chemical vapor deposition (MOCVD) technique. The entire ID SZO-GZO and SZO-ZnO coaxial nanostructures exhibit better diode characteristics, such as lower threshold voltage, better rectification ratios, and better ideality factor n, than that reported for either 2D or 2D-1D p-n heterojunction and/or homojunction diodes. The binding energies of Ga and Ag were evaluated by low-temperature and temperature-dependent photoluminescence. In comparison, the SZO-GZO coaxial p-n nanostructures display better diode performance than the SZO-ZnO ones.
楊晴子打造客家版LV
(2014-04-09)
林慰
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Department of Communication and Technology
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傳播與科技學系
漫步在東勢本街這條老街上，古色古香的巷弄，街道兩側的建築物新舊參半，濃濃的老街風情，耳邊傳來的是獨特的東勢大埔客家話，而社團法人台中縣東勢愛鄉協進會會所就坐落在這條本街上。會所大門前掛了許多客家花布燈籠，隨風搖擺。開門迎人的是一位滿臉笑容、和藹可親的老媽媽，她穿著淡灰色的針織外套及深色長褲，顯得十分舒適，還有許多人熱情地向人緣好的她打招呼。她，就是楊晴子——東勢愛鄉協進會的執行長。
A mechanistic stress model of protein evolution accounts for site-specific evolutionary rates and their relationship with packing density and flexibility
(2014-04-09)
Huang, Tsun-Tsao
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del Valle Marcos, Maria Laura
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Hwang, Jenn-Kang
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Echave, Julian
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生物資訊及系統生物研究所
Background: Protein sites evolve at different rates due to functional and biophysical constraints. It is usually considered that the main structural determinant of a site's rate of evolution is its Relative Solvent Accessibility (RSA). However, a recent comparative study has shown that the main structural determinant is the site's Local Packing Density (LPD). LPD is related with dynamical flexibility, which has also been shown to correlate with sequence variability. Our purpose is to investigate the mechanism that connects a site's LPD with its rate of evolution. Results: We consider two models: an empirical Flexibility Model and a mechanistic Stress Model. The Flexibility Model postulates a linear increase of site-specific rate of evolution with dynamical flexibility. The Stress Model, introduced here, models mutations as random perturbations of the protein's potential energy landscape, for which we use simple Elastic Network Models (ENMs). To account for natural selection we assume a single active conformation and use basic statistical physics to derive a linear relationship between site-specific evolutionary rates and the local stress of the mutant's active conformation. We compare both models on a large and diverse dataset of enzymes. In a protein-by-protein study we found that the Stress Model outperforms the Flexibility Model for most proteins. Pooling all proteins together we show that the Stress Model is strongly supported by the total weight of evidence. Moreover, it accounts for the observed nonlinear dependence of sequence variability on flexibility. Finally, when mutational stress is controlled for, there is very little remaining correlation between sequence variability and dynamical flexibility. Conclusions: We developed a mechanistic Stress Model of evolution according to which the rate of evolution of a site is predicted to depend linearly on the local mutational stress of the active conformation. Such local stress is proportional to LPD, so that this model explains the relationship between LPD and evolutionary rate. Moreover, the model also accounts for the nonlinear dependence between evolutionary rate and dynamical flexibility.
劉桂心　端出美食九二一後重新站起來
(2014-04-09)
戴裕蒨
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Department of Communication and Technology
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傳播與科技學系
出生於東勢鎮大茅埔的劉桂心，人稱「桂花媽媽」。從小就住在這個典型的客家聚落，她總盼望著有一天可以離開這個鄉下地方，到繁華的台中市討生活。後來，她也真的在台中市區有了自己的家，圓了兒時的夢。然而，一九九九年的九二一大地震，大茅埔的災情慘重，讓劉桂心決心回到家鄉，為自己從小生長的地方付出一份心力。
林保光竹縣議員奔走不願珍貴文化在這一代消失
(2014-04-09)
林芷瑩
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Department of Communication and Technology
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傳播與科技學系
林保光是客家籍的新竹縣議員，也是目前唯一代表新竹縣竹北市六家的縣議員。在這個地方，林家世世代代已生活長達二百五十年多年了，祖先所蓋的客家傳統祖厝，一直保留至今，並成為竹北著名的客家古蹟─「新瓦屋」。林家與六家地區關係濃厚，而從小就生活在這個客家庄的林保光，精通客家中最艱深的饒平話，對家鄉有很深的情感，對自己的家鄉付出不遺餘力。
An EEG-based brain-computer interface for dual task driving detection
(2014-04-10)
Wang, Yu-Kai
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Chen, Shi-An
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Lin, Chin-Teng
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資訊工程學系
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腦科學研究中心
The development of brain-computer interfaces (BCI) for multiple applications has undergone extensive growth in recent years. Since distracted driving is a significant cause of traffic accidents, this study proposes one BCI system based on EEG for distracted driving. The removal of artifacts and the selection of useful brain sources are the essential and critical steps in the application of electroencephalography (EEG)-based BCI. In the first model, artifacts are removed, and useful brain sources are selected based on the independent component analysis (ICA). In the second model, all distracted and concentrated EEG epochs are recognized with a self-organizing map (SOM). This BCI system automatically identified independent components with artifacts for removal and detected distracted driving through the specific brain sources which are also selected automatically. The accuracy of the proposed system approached approximately 90% for the recognition of EEG epochs of distracted and concentrated driving according to the selected frontal and left motor components. (C) 2013 Published by Elsevier B.V.
HIGH CONCENTRATION H2S ELIMINATION SYSTEM AND HIGH CONCENTRATION H2S ELIMINATION METHOD
(2014-04-10)
TSENG Ching-Ping
;
LIN Wei-Chih
A high concentration H2S elimination system and a method using the same are disclosed. The system of the present invention comprises: a chemical H2S elimination module with a gas inlet, a gas outlet and a liquid outlet, wherein H2 S-containing gas is introduced into the chemical H2S elimination module; a reagent storage unit containing an oxidant; a liquid spray unit, wherein the oxidant contained in the reagent storage unit is introduced into the chemical H2S elimination module from the liquid inlet thereof through the liquid spray unit; a bio-regeneration unit comprising a microorganism to regenerate oxidant and connecting to the reagent storage unit; and a sulfur-removing module connecting to the liquid outlet of the chemical H2S elimination module.
Holographic chiral electric separation effect
(2014-04-10)
Pu, Shi
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Wu, Shang-Yu
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Yang, Di-Lun
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物理研究所
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丘成桐中心
We investigate the chiral electric separation effect, where an axial current is induced by an electric field in the presence of both vector and axial chemical potentials, in a strongly coupled plasma via the Sakai-Sugimoto model with a U(1)(R) x U(1)(L) symmetry. By introducing different chemical potentials in U(1)(R) and U(1)(L) sectors, we compute the axial direct current (DC) conductivity stemming from the chiral current and the normal DC conductivity. We find that the axial conductivity is approximately proportional to the product of the axial and vector chemical potentials for arbitrary magnitudes of the chemical potentials. We also evaluate the axial alternating current (AC) conductivity induced by a frequency-dependent electric field, where the oscillatory behavior with respect to the frequency is observed.
METHOD FOR ESTIMATING CAPACITANCE WEIGHT ERRORS AND SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER USING THE SAME
(2014-04-10)
HONG Hao-Chiao
;
HSIEH Tsung-Yin
A method for estimating capacitance weight errors of a digital-to-analog converter and a successive approximation (SA) analog-to-digital converter (ADC) using the same are disclosed, and the SA ADC includes a comparator, a capacitor set, a switch set and a controller. The capacitor set includes a primary capacitor array including a plurality of binary-weighted capacitors, and a secondary capacitor array including a plurality of binary-weighted capacitors with known capacitance weights. The controller controls the switch set and repeats the steps of pre-charging the primary capacitor array, redistributing electric charges to the primary capacitor array and the secondary capacitor array, and performing a successive approximation binary searching on the primary capacitor array and the secondary capacitor array to calculate the capacitance weight error of each capacitor in the primary capacitor array. The calculated capacitance weight errors are used for calibrating the output of the successive approximation ADC.
製造奈米結構材料的方法
(2014-04-11)
陳智
;
楊慶榮
;
王舜民
;
謝嘉民
一種製造奈米結構材料的方法，應用於形成一維奈米材料。上述方法包括下列步驟：形成一金屬層於一基底及一接著層上並對金屬層進行陽極化處理步驟以形成一具有複數個奈米孔洞的金屬化物模板，之後再沉積一源材料於奈米孔洞中及金屬化物模板上。最後依序移除金屬化物模板上之源材料及金屬化物模板以形成一維奈米材料。上述步驟中利用了陽極氧化鋁作為模板與原子層化學氣相沉積法沉積源材料，可縮短製造時間並控制材料的品質。
具有積體電路與發光二極體之異質整合結構及其製作方法
(2014-04-11)
陳冠能
;
柯正達
;
駱韋仲
本發明係揭露一種具有積體電路與發光二極體之異質整合結構及其製作方法，首先，提供一積體電路與一發光二極體，積體電路之表面設有至少一第一導電塊與至少一第一接合塊，以與第一導電塊電性連接，發光二極體具有相異兩側之一第一、第二面，第一面設有至少一第二導電塊與至少一第二接合塊，以與第二導電塊電性連接。接著，積體電路將第一導電塊與第一接合塊分別與第二導電塊與第二接合塊對應接合，以與發光二極體相結合，並使第一、第二導電塊電性連接，便完成製作。本發明不但能散熱，更有電訊上的連接，以達到高密度、多功能之應用。
微藻養殖模組
(2014-04-11)
林志生
;
邱聖壹
;
高千雅
一種用於減碳與產製生物質之微藻養殖模組，包括第一光生物反應器組、第二光生物反應器組、氣體切換裝置以及控制單元。氣體切換裝置連通至第一光生物反應器組及第二光生物反應器組。控制單元耦接並控制氣體切換裝置，藉此在第一預定時間內，將廢氣通入第一光生物反應器組，並將一空氣通入第二光生物反應器組，之後在第二預定時間內，將廢氣通入第二光生物反應器組，並將空氣通入第一光生物反應器組。其中，第一光生物反應器組及第二光生物反應器組中包括微藻株。
通訊系統接收器及其解碼方法
(2014-04-11)
黃崇榮
;
宋志晟
;
李大嵩
針對K-Best演算法的缺失，提出一個適用於大型積體電路架構的高效率球型K-Best解碼器。透過複數平面星座圖的規律特性來簡化星座點之搜尋，以及提出一高速平行比較之架構，省卻大量的資料排序動作及節點的運算量，藉以提供一高效率，低功率消耗且具有固定吞吐量的K-Best解碼器。更進一步地，透過結合部份最大可能決策器與所提出的高效率搜尋演算法，使得在相同的環境及K值下，該系統能提供接近於最大可能搜尋之性能，且較傳統的K-Best演算法有更低的運算量。
One-Pot Synthesis of Triazoloquinazolinones via Copper-Catalyzed Tandem Click and Intramolecular C-H Amidation
(2014-04-14)
Selvaraju, Manikandan
;
Sun, Chung-Ming
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應用化學系
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Department of Applied Chemistry
A novel and highly efficient copper-catalyzed tandem synthesis of triazoloquinazolinones is explored. The synthetic strategy involves a sequential one-pot click reaction followed by aerobic intramolecular CH amidation. Two distinct and important transformations were carried out in one-pot by employing a single cost-effective copper catalyst. The milder, rapid and ligand-free reaction conditions as well as a broader substrate scope are the salient features of this novel protocol.
Dual operation characteristics of resistance random access memory in indium-gallium-zinc-oxide thin film transistors
(2014-04-14)
Yang, Jyun-Bao
;
Chang, Ting-Chang
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Huang, Jheng-Jie
;
Chen, Yu-Chun
;
Chen, Yu-Ting
In this study, indium-gallium-zinc-oxide thin film transistors can be operated either as transistors or resistance random access memory devices. Before the forming process, current-voltage curve transfer characteristics are observed, and resistance switching characteristics are measured after a forming process. These resistance switching characteristics exhibit two behaviors, and are dominated by different mechanisms. The mode 1 resistance switching behavior is due to oxygen vacancies, while mode 2 is dominated by the formation of an oxygen-rich layer. Furthermore, an easy approach is proposed to reduce power consumption when using these resistance random access memory devices with the amorphous indium-gallium-zinc-oxide thin film transistor. (C) 2014 AIP Publishing LLC.
Characterization of the Pharmaceutical Effect of Drugs on Atherosclerotic Lesions in Vivo Using Integrated Fluorescence Imaging and Raman Spectral Measurements
(2014-04-15)
Yang, Yi-Cyun
;
Chang, Wei-Tien
;
Huang, Shao-Kang
;
Liau, Ian
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應用化學系
Direct assessment of the vascular lesions of model animals in vivo is important for the development of new antiatherosclerotic drugs. Nevertheless, biochemical analysis of the lipid profile in blood in vitro remains the most common way to evaluate the therapeutic effect of drugs targeting atherosclerosis because of an inherent difficulty to access the vascular wall. Using hypercholesterolemic zebrafish, we present an orchestrated application of Raman spectral measurements and confocal fluorescence imaging to interrogate the pharmacological response of atherosclerotic lesions in situ and in vivo. For demonstration, we investigated two commonly prescribed antihyperlipidemic drugs, ezetimibe and atorvastatin. The treatment of ezetimibe or atorvastatin alone decreased effectively the deposition of lipids in the vascular wall, and a combined dose showed a synergistic effect. Atorvastatin exerted a profound antioxidative effect on vascular fatty lesions. Analysis of individual lesions shows further that these lesions exhibited a heterogeneous response to the treatment of atorvastatin; a significant fraction of, but not all, the lesions became nonoxidized after the intervention. Beyond its efficacies in suppressing both the accumulation and oxidation of vascular lipids, atorvastatin expedited the clearance of vascular lipids. The possession of pleotropic (multiple) therapeutic effects on vascular fatty lesions of hypercholesterolemic zebrafish by atorvastatin is notably consistent with the known pharmaceutical effects of this drug on human beings. These results improve our understanding of the antiatherosclerotic effect of drugs. We envisage that our approach has the potential to become a platform to predict the pharmaceutical effects of new drugs aiming to cure human atherosclerotic diseases.