Browsing by Issue Date, starting with "2014-04-14"

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One-Pot Synthesis of Triazoloquinazolinones via Copper-Catalyzed Tandem Click and Intramolecular C-H Amidation
(2014-04-14)
Selvaraju, Manikandan
;
Sun, Chung-Ming
;
應用化學系
;
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
;
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
;
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.
Protein transistor device
(2014-04-15)
Huang Gue-Wha
;
Hung Meng-Yen
;
Chen Yu-Shiun
The present invention discloses a protein transistor device, wherein an antibody molecule (antibody-antigen) is bonded to at least two gold nanoparticles in a high reproducible self-assembly way to form molecular junctions, and wherein the two gold nanoparticles are respectively joined to a drain and a source. The protein transistor device can be controlled to regulate current via applying a bias to the gate. The conformational change of the protein molecule will cause the variation of the charge transport characteristics of the protein transistor device. The protein transistor device can be further controlled by different optical fields via conjugating a quantum dot to the molecular junctions. Therefore, the present invention has diversified applications.
Application of RFID tracking to the optimization of function-space assignment in buildings
(2014-04-15)
Dzeng, Ren-Jye
;
Lin, Chong-Wey
;
Hsiao, Fan-Yi
;
土木工程學系
;
Department of Civil Engineering
Function-space assignment, which allocates a function for each space in a facility, is one of the most important factors in determining the usability performance of a building. Most architects renovate a building based on their personal perception of how the occupants might use the building instead of quantitatively analyzing their use behaviors. This study developed a function-space assignment optimization model based on the occupants' movement data as tracked by REID technology. The model mines the movement data by constructing patterns and calculating the relation values between functions. The search for the best assignment is based on the fast messy genetic algorithm (fmGA) with the objective function incorporating the preference of space size and the minimization of the distance for movement required by the occupants during the performance of their daily activities. The proposed model incorporated building-block filtering mechanism in the fmGA problem-solving process to generate enough copies of the good building blocks so more copies would remain for subsequent processing. The paper also describes two experiments that evaluate the performance of the model and compare the performances of the models with and without the building-block filtering mechanism. (C) 2014 Elsevier B.V. All rights reserved.
Visualization of clogs developed from interaction between APDC and low-level radwaste relevant nuclides on RO membranes: A LA-ICP-MS study
(2014-04-15)
Chen, Lian-Song
;
Wang, TsingHai
;
Hsieh, Yi-Kong
;
Hsu, Chien-Hua
;
Lin, Justin Chun-Te
In this study, we used LA-ICP-MS to visualize the fouling induced by seeded filtration for efficient removing liquid low-level radwaste relevant nuclides using a reverse osmosis (RO) membrane. Evidenced by a significant permeate flux drop, these APDC additives pronouncedly increased the rejection by around 20% (from 68% to 84%) for cobalt, 30% for strontium (from 55% to 71%), and 70% for cesium (from 20% to 34%). Surface mapping using LA-ICP-MS showed that the hot zones of Co, Sr, and Cs in the APDC-Co, APDC-Sr and APDC-Cs systems were perfectly superimposed with the locations of the S moiety of APDC. This suggested that the improved rejection is closely related to the formation of APDC-metal complexes, and the possible coprecipitation of these elements with APDC-metal complexes. Further depth profile analyses revealed that the fouling mainly occurred in the first 2-6 pm of the RO membrane. Fitted with the Hermia model, it was evident that APDC additives facilitate the formation of complete blocking, intermediate blocking, and standard blocking, and as a consequence enhance Co rejection. By contrast, cake formation induced by APDC additives was mainly responsible for the better rejection of Sr and Cs. Importantly, our depth profile analyses undoubtedly suggested that a large particle/colloid is able to penetrate deeply into the membrane despite its pore size is much smaller than those particles/colloids. (C) 2014 Elsevier B.V. All rights reserved.
Industry-level total-factor energy efficiency in developed countries: A Japan-centered analysis
(2014-04-15)
Honma, Satoshi
;
Hu, Jin-Li
;
經營管理研究所
;
Institute of Business and Management
Japan's energy security is more vulnerable today than it was before the Fukushima Daiichi nuclear power plant accident in March 2011. To alleviate its energy vulnerability, Japan has no choice but to improve energy efficiency. To aid in this improvement, this study compares Japan's energy efficiency at the industry level with that of other developed countries. We compute the total-factor energy efficiency (TFEE) of industries in 14 developed countries for 1995-2005 using data envelopment analysis. We use four inputs: labor, capital stock, energy, and non-energy intermediate inputs. Value added is the only relevant output. Results indicate that Japan can further optimize energy conservation because it experienced only a marginal decrease in the weighted TFEE, from 0.986 in 1995 to 0.927 in 2005. To improve inefficient industries, Japan should adapt energy conservation technologies from benchmark countries such as Germany, the United Kingdom, and the United States. (C) 2014 Elsevier Ltd. All rights reserved.
Voltage-controlled liquid-crystal terahertz phase shifter with indium-tin-oxide nanowhiskers as transparent electrodes
(2014-04-15)
Yang, Chan-Shan
;
Tang, Tsung-Ta
;
Chen, Po-Han
;
Pan, Ru-Pin
;
Yu, Peichen
Indium-tin-oxide nanowhiskers were employed as transparent electrodes in a liquid-crystal terahertz phase shifter. Transmittance of the device was as high as similar to 75%. Phase shift exceeding pi/2 at 1.0 THz is achieved in a similar to 500 mu m-thick cell. The driving voltage required for the device operating as a quarter-wave plate was as low as 17.68 V (rms), an improvement of nearly an order of magnitude over previous work. (C) 2014 Optical Society of America
Plasmonics in Topological Insulators
(2014-04-16)
Lai, Yi-Ping
;
Lin, I-Tan
;
Wu, Kuang-Hsiung
;
Liu, Jia-Ming
;
電子物理學系
With strong spin-orbit coupling, topological insulators have an insulating bulk state, characterized by a band gap, and a conducting surface state, characterized by a Dirac cone. Plasmons in topological insulators show high frequency-tunability in the mid-infrared and terahertz spectral regions with transverse spin oscillations, also called "spin-plasmons". This paper presents a discussion and review of the developments in this field from the fundamental theory of plasmons in bulk, thin-film, and surface-magnetized topological insulators to the techniques of plasmon excitation and future applications.
估測逐次漸近類比數位轉換器中數位類比轉換器內電容權重誤差之方法與其應用於校正該逐次漸進類比數位轉換器
(2014-04-16)
洪浩喬
;
謝宗殷
本發明提出一種估測逐次漸近類比數位轉換器中數位類比轉換器內電容權重誤差之方法,用以估計數位類比轉換器的電容的電容權重誤差。該待校逐次漸近類比數位轉換器包括比較器、電容組、開關組與控制器,其中電容組包括一個具有多個電容的主電容陣列與一個包含多個已知權重電容的子電容陣列,前述主電容陣列包含一輔助電容以及一個電容之間的比例可以成2的冪次方關係的電容陣列,且該輔助電容小於主電容陣列之其他電容,前述子電容陣列電容的已知權重可以成2的冪次方關係。控制器用以控制開關組,依序重複執行主電容陣列的預先充電、將電荷重新分布於主電容陣列與子電容陣列、與主電容陣列及子電容陣列的逐次逼近二元搜尋法,並依所得結果計算主電容陣列內各個電容的電容權重誤差値。所得之該等電容權重誤差値可用以校正該逐次漸近類比數位轉換器的輸出。
高濃度硫化氫去除系統及方法
(2014-04-16)
曾慶平
;
林威志
本發明係有關於一種高濃度硫化氫去除系統及方法，其中本發明之高濃度硫化氫去除系統包括：一化學除硫模組，具有一氣體通入口、一氣體排出口及一液體排出口，且一含硫化氫氣體係由氣體通入口通入至化學除硫模組中；一化學儲存單元，包括一化學氧化劑；一液體噴灑單元，其中化學儲存單元中之化學氧化劑係透過液體噴灑單元通入至化學除硫模組；一生物再生單元，包括一再生化學氧化劑之生物體且與化學儲存單元連接；以及一硫沉澱排出模組，係與該化學除硫模組之該液體排出口連接。
Method for swing result deduction and posture correction and the apparatus of the same
(2014-04-16)
Lin, Chung Wei
;
KUO, Lun Chia
;
YI, Chih Wei
;
CHEN, Tsung Long
;
YEH, Yu Jung
An exemplary embodiment provides a method for swing result deduction and posture correction. The method includes performing a coordinate transformation between a sensor frame and an earth frame, deducting the swing result according to at least one piece of sensor information and a swing result deduction analysis, and providing a posture correction advice according to at least one piece of sensor information and a posture correction analysis.
陳君明反骨姿態　拒走主流媒體路線
(2014-04-16)
陳聖文
;
Department of Communication and Technology
;
傳播與科技學系
一踏進客家電視台的記者辦公室，看見所有人都坐在辦公桌前，緊盯著電腦螢幕，似乎是報導截稿時間又迫在眉睫了，只覺得一股忙碌嚴肅的氣氛不斷湧現。而暫時卸下手中工作的陳君明，帶著略顯疲憊的神色卻充滿自信的語氣說：「我們到會客室吧！」，準備抽空接受採訪。
具有奈米雙晶銅之電性連接體、其製備方法、以及包含其之電性連接結構
(2014-04-16)
陳智
;
劉道奇
;
邱韋嵐
本發明係有關於一種具有奈米雙晶銅之電性連接體、其製備方法、以及包含其之電性連接結構。本發明之具有雙晶銅之電性連接結構之製備方法,係包括步驟:(A)提供一第一基板;(B)於該第一基板之部分表面形成一奈米雙晶銅層;(C)將一焊料配置於該奈米雙晶銅層之表面;以及(D)進行回焊以使該焊料與奈米雙晶銅層接合,其中,該焊料至少部分轉換為一介金屬化合物(intermetallic compound,IMC)層,該介金屬化合物層係包括有一Cu3Sn層。本發明技術使得焊料與奈米雙晶銅所反應在介金屬化合物與銲錫界面的孔洞減少,提升接點可靠度。
擊球結果推論與姿勢修正之方法與裝置
(2014-04-16)
林群惟
;
郭倫嘉
;
易志偉
;
葉于榕
;
陳宗隆
一種擊球結果推論與姿勢修正之方法的一實施例包含進行一感測器座標與地球座標之間的座標轉換；根據至少一感測器資訊，透過一種擊球結果推論分析法瞭解擊球結果；以及根據至少一感測器資訊，透過一種姿勢修正分析法提供擊球姿勢修正建議。
Ion Intensity and Thermal Proton Transfer in Ultraviolet Matrix-Assisted Laser Desorption/Ionization
(2014-04-17)
Lu, I-Chung
;
Lee, Chuping
;
Chen, Hui-Yuan
;
Lin, Hou-Yu
;
Hung, Sheng-Wei
The ionization mechanism of ultraviolet matrix-assisted laser desorption/ionization (UV-MALDI) was investigated by measuring the total cation intensity (not including sodiated and potasiated ions) as a function of analyte concentration (arginine, histidine, and glycine) in a matrix of 2,4,6-trihydroxyacetophenone (THAP). The total ion intensity increased up to SS times near the laser fluence threshold as the arginine concentration increased from 0% to 1%. The increases were small for histidine, and a minimal increase occurred for glycine. Time-resolved fluorescence intensity was employed to investigate how analytes affected the energy pooling of the matrix. No detectable energy pooling was observed for pure THAP and THAP/analyte mixtures. The results can be described by using a thermal proton transfer model, which suggested that thermally induced proton transfer is crucial in the primary ion generation in UV-MALDI.
METHOD FOR SWING RESULT DEDUCTION AND POSTURE CORRECTION AND THE APPARATUS OF THE SAME
(2014-04-17)
LIN CHUNG WEI
;
KUO LUN CHIA
;
YI CHIH WEI
;
YEH YU JUNG
;
CHEN TSUNG LONG
An exemplary embodiment provides a method for swing result deduction and posture correction. The method includes performing a coordinate transformation between a sensor frame and an earth frame, deducting the swing result according to at least one piece of sensor information and a swing result deduction analysis, and providing a posture correction advice according to at least one piece of sensor information and a posture correction analysis.
Optoelectronic Properties of Single-Crystalline Zn2GeO4 Nanowires
(2014-04-17)
Liao, Chi-Hung
;
Huang, Chun-Wei
;
Chen, Jui-Yuan
;
Chiu, Chung-Hua
;
Tsai, TzungChuen
In this work, Zn2GeO4 nanowires (NWs) were successfully synthesized on Si(100) substrates through carbon thermal reduction and a vapor liquid solid method. The NWs were of around 100 nm diameter and high aspect ratio (AR > 150). High-resolution transmission electron microscopy studies indicate that the NWs are single-crystalline with [110] growth direction. Moreover, the atomic resolution high-angle annular dark-field and bright-field images of scanning transmission electron microscopy have distinguished the different elements. They also further identified the structure of Zn2GeO4 and located the positions of the elements. Additionally, we have fabricated devices and measured the electrical properties of a single NW. It is remarkable that individual Zn2GeO4 NW devices exhibited excellent optoelectronic properties with fast switching speed under 254 nm UV illuminations. Furthermore, with short wavelength UV illumination, as we soaked Zn2GeO4 NWs in methyl orange solution, the methyl orange was degraded. Therefore, Zn2GeO4 NWs have potential applications in UV photodetectors and degradation of organic pollutants.
CIRCUIT BOARD WITH TWINNED CU CIRCUIT LAYER AND METHOD FOR MANUFACTURING THE SAME
(2014-04-17)
CHEN Chih
;
LIN Han-Wen
A circuit board with twinned Cu circuit layer and a method for manufacturing the same are disclosed, wherein the method comprises the following steps: (A) providing a substrate with a first circuit layer formed thereon, wherein the first circuit layer comprises a conductive pad; (B) forming a first dielectric layer on the surface of the substrate; (C) forming plural openings in the first dielectric layer, wherein each opening penetrates through the first dielectric layer and communicates with the conductive pad to expose the conductive pad; (D) forming a Cu seeding layer in the openings; (E) forming a nano-twinned Cu layer in the openings with an electroplating process; and (F) annealing the substrate to transfer the material of the Cu seeding layer into nano-twinned Cu, wherein the nano-twinned Cu layer and the transferred Cu seeding layer are formed into a second circuit layer.
人生這堂課　代價與收穫
(2014-04-20)
江岱燕
;
Department of Communication and Technology
;
傳播與科技學系
透過親身體會所學到的經驗，絕對比課本教的還要印象深刻，有時候甚至更受用無窮，但是要付出的代價也更多。