Browsing by Issue Date, starting with "2013-04-11"

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腹式呼吸訓練裝置、腹式呼吸訓練系統及其方法
(2013-04-11)
蕭子健
;
徐如欣
;
謝岱凌
本發明提出一種腹式呼吸訓練裝置、腹式呼吸訓練系統及其方法。所述之腹式呼吸訓練裝置適用於訓練使用者以進行腹式呼吸，並包括訓練單元、感測單元、資訊擷取與轉換單元及顯示單元，而訓練單元產生訓練波形及指示。感測單元鄰接於使用者的腹部，並量測使用者的腹部呼吸訊號。資訊擷取與轉換單元電性耦接至感測單元及訓練單元，並根據所量測的腹部呼吸訊號而產生使用者腹部呼吸波形。顯示單元電性耦接至訓練單元，並顯示訓練波形及指示給使用者，而使用者跟著顯示單元上的訓練波形以進行腹式呼吸。
在無線寬頻基地台的延遲與調變感知動態頻寬分配之方法
(2013-04-11)
林盈達
;
林義能
;
吳哲文
;
賴源正
新一代的無線寬頻系統在高速行動無線網路下可支援高速率且長距離的傳輸。然而連線品質受到長距離及空氣干擾而不穩定，使得及時應用程式面臨嚴峻的考驗。因此，需要一個適當的頻寬分配演算法及設備同時滿足及時應用程式延遲要求且充分利用可用的頻寬來提供差異式服務和公平性。在本發明中提出一個在基地台藉由考慮調適調變及編碼比率與需求急迫性的最高急迫優先演算法來克服上述的問題。在上下行頻寬的動態調節中，分別優先保留其最急迫請求的頻寬，接著根據其餘上下行不急迫請求的需求量比例地分配剩餘頻寬。在上下行獨自分配頻寬給行動裝置階段，則利用一新穎的係數來決定每個需求的急迫性，以最急迫優先的分配方式來反映出延遲保證與公平性。
CONTROLLABLE OPTICAL DEVICE AND THE FORMING METHOD THEREOF
(2013-04-11)
LIU Li-Wei
;
CHEN Chih-Wei
;
SU Yong-Ren
;
HUANG Yi-Pai
A controllable optical device comprises a first substrate, a first conductive layer, a liquid crystal layer, a semiconductor conductive layer, a second conductive layer, and a second substrate. The first conductive layer is formed on the first substrate, the liquid crystal layer is formed on the first conductive layer, the semiconductor conductive layer is formed on the liquid crystal layer, the second conductive layer is formed on the semiconductor layer, and the second substrate is formed on the second conductive layer.
Complex Oxide-Noble Metal Conjugated Nanoparticles
(2013-04-11)
Guo, Jun-Ling
;
Chiou, Yao-De
;
Liang, Wen-I
;
Liu, Heng-Jui
;
Chen, Ying-Jiun
Hybrid nanoparticles (NPs) composed of multiple components offer new opportunities for next-generation materials. In this study, a paradigm for the noble metal/ternary complex oxide hybrid NPs is reported by adopting pulsed laser ablation in liquids. As model hybrids, gold-spinel heterodimer (Au-CoFe2O4) and gold-pervoskite heterodimer (Au-SrTiO3) NPs are investigated. This work has demonstrated the diverse playgroup of NP conjugation enlarged by complex oxides.
有機光電元件
(2013-04-11)
孟心飛
;
洪勝富
;
曾信榮
;
李冠成
一種有機光電元件，包括第一電極；形成於該第一電極上之主動層；形成於該主動層上之第二中間層；以及形成於該第二中間層上之第二電極；其中，該第二中間層包括含有第二聚合物和第二有機小分子的第二混合物，且該第二有機小分子係選自作為電洞傳輸材料、電子傳輸材料、電子阻擋材料或電洞阻擋材料的化合物。本發明之有機光電元件係以溶液製程製備而得，具有製程簡便、改善薄膜成膜性和提升元件效率之優點。
用於生理訊號量測感測器之乾式電極
(2013-04-11)
林進燈
;
廖倫德
本發明係揭露一種用於生理訊號量測感測器之乾式電極，其包含導電海綿、導電布及金屬薄片。導電布包覆導電海綿，且金屬薄片設置於導電布相對於導電海綿之ㄧ面。使用本發明之乾式電極時，可不需塗抹導電膠於待測部位上，故本發明之乾式電極具有長效並即時量測生理訊號之特性，使用上更為簡便。
Infrared Absorption Spectrum of the Simplest Criegee Intermediate CH2OO
(2013-04-12)
Su, Yu-Te
;
Huang, Yu-Hsuan
;
Witek, Henryk A.
;
Lee, Yuan-Pern
;
應用化學系
The Criegee intermediates are carbonyl oxides postulated to play key roles in the reactions of ozone with unsaturated hydrocarbons; these reactions constitute an important mechanism for the removal of unsaturated hydrocarbons and for the production of OH in the atmosphere. Here, we report the transient infrared (IR) absorption spectrum of the simplest Criegee intermediate CH2OO, produced from CH2I + O-2 in a flow reactor, using a step-scan Fourier-transform spectrometer. The five observed bands provide definitive identification of this intermediate. The observed vibrational frequencies are more consistent with a zwitterion rather than a diradical structure of CH2OO. The direct IR detection of CH2OO should prove useful for kinetic and mechanistic investigations of the Criegee mechanism.
周波数逓倍器装置及びその動作方法
(2013-04-12)
郭建男
;
顏子超
Semi-analytical solution of groundwater flow in a leaky aquifer system subject to bending effect
(2013-04-12)
Yu, Chia-Chi
;
Yang, Shaw-Yang
;
Yeh, Hund-Der
;
環境工程研究所
;
Institute of Environmental Engineering
The bending of aquitard like a plate due to aquifer pumping and compression is often encountered in many practical problems of subsurface flow. This reaction will have large influence on the release of the volume of water from the aquifer, which is essential for the planning and management of groundwater resources in aquifers. However, the groundwater flow induced by pumping in a leaky aquifer system is often assumed that the total stress of aquifer maintains constant all the time and the mechanical behavior of the aquitard formation is negligible. Therefore, this paper devotes to the investigation of the effect of aquitard bending on the drawdown distribution in a leaky aquifer system, which is obviously of interest in groundwater hydrology. Based on the work of Wang et al. (2004) this study develops a mathematical model for investigating the impacts of aquitard bending and leakage rate on the drawdown of the confined aquifer due to a constant-rate pumping in the leaky aquifer system. This model contains three equations; two flow equations delineate the transient drawdown distributions in the aquitard and the confined aquifer, while the other describes the vertical displacement in response to the aquitard bending. For the case of no aquitard bending, this new solution can reduce to the Hantush Laplace-domain solution (Hantush, 1960). On the other hand, this solution without the leakage effect can reduce to the time domain solution of Wang et al. (2004). The results show that the aquifer drawdown is influenced by the bending effect at early time and by the leakage effect at late time. The results of sensitivity analysis indicate that the aquifer compaction is sensitive only at early time, causing less amount of water released from the pumped aquifer than that predicted by the traditional groundwater theory. The dimensionless drawdown is rather sensitive to aquitard's hydraulic conductivity at late time. Additionally, both the hydraulic conductivity and thickness of the aquifer are the most sensitive parameters in influencing the predicted dimensionless drawdown. (C) 2013 Elsevier B.V. All rights reserved.
Organic thin film transistors as selective sensing platforms for Hg2+ ions and the amino acid cysteine
(2013-04-15)
Ramesh, Mohan
;
Lin, Hong-Cheu
;
Chu, Chih-Wei
;
材料科學與工程學系
;
光電工程學系
In this short communication we report a sensor for divalent mercuric (Hg2+) ions that we constructed from a perylene bisimide (PBI)-based organic thin film transistor. We improved the performance of the n-channel device by positioning N,N'-dioctyl-3,4,9,10-perylenedicarboximide between the dielectric and the active layer (PSI), increasing the electron mobility (mu) from 0.002 to 0.25 +/- 0.04 cm(2) V-1 s(-1) and enhancing the on/off ratio (I-on/I-off) by two orders of magnitude (from 102 to 104). Based on a "thymine-Hg2+-thymine" mechanism and monitoring the shift in the threshold voltage (V-th), we used this transistor to discriminate Hg2+ ions from mixed ion solutions and it extended to different concentration Hg2+ solutions (from 50 to 350 mu M). By monitoring the shifts in drain current (I-DS) and V-th, we also used this bilayer device as a sensor for cysteine, a thiol-containing amino acid; the selective detection of cysteine was accompanied by a red shift in the fluorescence maximum of PBI, from 532 to 537 nm. (C) 2012 Elsevier B.V. All rights reserved.
Association of poly(N-isopropylacrylamide) containing nucleobase multiple hydrogen bonding of adenine for DNA recognition
(2013-04-15)
Yang, Hsiu-Wen
;
Chen, Jem-Kun
;
Cheng, Chih-Chia
;
Kuo, Shiao-Wei
;
應用化學系
In this study we used the poly(N-isopropylacrylamide) (PNIPAAm) as a medium to generate PNIPAAm-adenine supramolecular complexes. A nucleobase-like hydrogen bonding (NLHB) between PNIPAAm and adenine was found that changed the morphology, crystalline structure, and temperature responsiveness of PNIPAAm microgels relatively to the adenine concentrations. With increasing the adenine concentration, the PNIPAAm-adenine supramolecular complexes gradually altered their morphologies from microgel particles to thin film structures and suppressed the thermodynamical coil-to-globule transition of PNIPAAm because of the NLHB existed between the PNIPAAm amide and ester groups and the adenine amide groups (C=O center dot center dot center dot H-N and N-H center dot center dot center dot N-R), verified by FTIR spectral analysis. NLHB was also diverse and extensive upon increasing the temperature; therefore, the thermoresponsive behavior of the complexes was altered with the NLBH intensity, evaluated by the inter-association equilibrium constant (K-a) above and below their LCST. Therefore, PNIPAAm can be as a medium to recognize adenine in various concentrations, which could potentially be applied in DNA recognition. (C) 2013 Elsevier B.V. All rights reserved.
A proteomic approach to study molecular mechanisms of andrographolide-mediated degradation of Src oncoproteins.
(2013-04-15)
Liu, Sheng-Hung
;
Chen, Pei-Fen
;
Lin, Chao-Hsiung
;
Sun, Chung-Ming
;
Chi, Chin-Wen
Wireless near-infrared spectroscopy system for determining brain hemoglobin levels in laboratory animals
(2013-04-15)
Kuo, Jinn-Rung
;
Chang, Ming-Hsien
;
Wang, Che-Chuan
;
Chio, Chung-Ching
;
Wang, Jhi-Joung
Traumatic brain injury (TBI) is usually caused by brain shaking or impact. It can affect normal brain function and may even lead to disability or death. However, there are very few studies on the associated physiologic changes in humans or animals. In this study, a non-invasive, wireless multi-channel near-infrared spectroscopy (NIRS) was developed to continuously monitor the concentration change of oxyhemoglobin (HbO(2)), deoxyhemoglobin (HbR), and total hemoglobin (HbT) to elucidate changes in the physiological state of the brain during and after different strength impaction. The triphenyltetrazolium chloride (TTC) staining was also used to monitor changes of infarction volume after different strength impaction. The results indicated that the concentration changes of HbO(2) and HbT, and the changes of infarction volumes were significantly related to the impact strength. In conclusion, the status of TBI can be clinically evaluated by detecting HbO(2) and HbT changes. The system proposed here is stable, accurate, non-invasive, and mostly important wireless which can easily be used for TBI study. (C) 2013 Elsevier B.V. All rights reserved.
Spectral radius and degree sequence of a graph
(2013-04-15)
Liu, Chia-an
;
Weng, Chih-wen
;
應用數學系
;
Department of Applied Mathematics
Let G be a simple connected graph of order n with degree sequence d(1), d(2), ... , dr, in non-increasing, order. The spectral radius rho(G) of G is the largest eigenvalue of its adjacency matrix. For each positive integer l at most n, we give a sharp upper bound for rho(G) by a function of d(1), d(2), ... ,d(l), which generalizes a series of previous results. (C) 2013 Elsevier Inc. All rights reserved.
Enhanced ductility of the ZA85 magnesium alloy fabricated by equal-channel angular pressing
(2013-04-15)
Lin, Che-Yi
;
Bor, Hui-Yum
;
Chao, Chuen-Guang
;
Liu, Tzeng-Feng
;
材料科學與工程學系
Equal-channel angular pressing (ECAP) was applied to the as-cast Mg-8 wt.% Zn-5 wt.% Al (ZA85) alloy to produce a fine-grained structure with fine and uniformly distributed Mg-32 (Al, Zn)(49) (tau-phase) particles. Experiments showed that the ZA85 alloy had an initial grain size of similar to 150 mu m after casting and was significantly reduced to 4 mu m after six ECAP passes at 180 degrees C. After annealing at 300 degrees C for 1 h, the average grain size merely increased to 7.1 mu m. This thermal stability of the fine-grained structure at temperatures at or below 325 degrees C is attributed to the presence of the fine and well distributed tau-phase. It was demonstrated that ECAP processing greatly enhances ductility of the experimental alloy. By testing over a range of temperatures and strain rates, a maximum elongation to failure of 400% was obtained in the ECAP ZA85 alloy tested at 300 degrees C (0.53 T-m) with the initial strain rate of 1.0 x 10 (4) s (1). The dominant deformation mechanism for the specimens tested at 300 and 350 degrees C with the initial strain rates ranging from 1.0 x 10 (4) s (1) to 1.0 x 10 (3) s (1) is GBS controlled by grain boundary diffusion. At the higher testing temperature of 400 degrees C, the deformation mechanism for the experimental alloy is dislocation creep. (C) 2012 Elsevier B. V. All rights reserved.
Noninvasive current sensor for household appliances and compensation for installation variation
(2013-04-15)
Cheng, S. H.
;
Lin, S. F.
;
電控工程研究所
;
Institute of Electrical and Control Engineering
The lack of natural resources requires a more efficient use of energy. This study proposes a noninvasive coil current sensor for energy efficiency in the home. The proposed sensor is used to detect current in two-wire power cords used by household appliances. Moreover, the proposed sensor has no contact with the conductors in the power cords, ensuring a safe measurement process. Mathematical models and experiments are conducted to verify the characteristics and performance of the proposed device. In addition, this study develops relevant algorithms and the method for reducing installation variation. Using the developed algorithms, the measurement errors caused by an installation gap were reduced to less than 3%. The information provided by the current sensor supports home energy management systems and encourages energy-saving behaviors for every household member, resulting in an increasingly efficient energy usage. (C) 2013 Elsevier B.V. All rights reserved.
延遲線裝置與延遲訊號方法
(2013-04-16)
許騰尹
;
賴煒棋
;
廖原德
一種延遲線裝置與延遲訊號方法在此揭露。延遲線裝置包含差動電路、延遲電路與除頻器。差動電路用以將輸入訊號的上升緣以及下降緣分別轉成脈衝而產生脈衝訊號。延遲電路包含內迴路與計數模組。脈衝訊號會驅動內迴路開始運作，當內迴路訊號繞內迴路一次時，代表內迴路延遲一預設時段並將內迴路中的內迴路訊號反相。計數模組用以控制內迴路訊號重複迴圈的次數，在脈衝訊號驅動內迴路時，計數模組開始計算，直到內迴路的重複迴圈次數至預設次數時，計數模組輸出一個延遲訊號並將所算之次數歸零且停止內迴路的運作。
多孔奈米結構之製作方法
(2013-04-16)
張原銘
;
莊振益
一種多孔奈米結構之製作方法，係藉由在一半導體基材上進行一濺鍍製程，以形成一金屬奈米網格陣列。之後，再對上述之半導體基材與金屬奈米網格陣列進行一乾蝕刻製程，以在半導體基材上形成一多孔奈米結構。利用此種製作方法，僅需兩道製程步驟，即可完成高性能之抗反射多孔矽奈米仿生結構的製作，相較於習知，可有效兼具減少繁瑣製程步驟以及具備高抗反射性之優點。
Fully-on-chip temperature, process, and voltage sensor system
(2013-04-16)
Chen Shi-Wen
;
Chang Ming-Hung
;
Hsieh Wei-Chih
;
Hwang Wei
A fully on-chip temperature, process, and voltage sensor includes a voltage sensor, a process sensor and a temperature sensor. The temperature sensor includes a bias current generator, a ring oscillator, a fixed pulse generator, an AND gate, and a first counter. The bias current generator generates an output current related to temperature according to the operating voltage of chip. The ring oscillator generates an oscillation signal according to the output current. The fixed pulse generator generates a fixed pulse signal. The AND gate is connected to the ring oscillator and the fixed pulse generator for performing a logic AND operation on the oscillation signal and the fixed pulse signal, and generating a temperature sensor signal.
Method for treating the dislocation in a GaN-containing semiconductor layer
(2013-04-16)
Lee Wei-I
;
Yeh Yen-Hsien
;
Wu Yin-Hao
;
Yu Tzu-Yi
A method for treating the threading dislocation within a GaN-containing semiconductor layer is provided. The method includes a substrate is provided. A GaN-containing semiconductor layer with the threading dislocation is formed on the substrate. An etching process with an etching gas is performed to remove the threading dislocation in the GaN-containing semiconductor layer so as to increase the efficiency for the light emitting device.