Browsing by Issue Date, starting with "2014-02-11"

Now showing 1 - 20 of 27637

用於多用戶多輸入多輸出正交分頻多工系統的資源配置方法及其裝置
(2014-02-11)
王蒞君
;
葉俥榮
本發明的示範實施例提供了一種用於多用戶多輸入多輸出正交分頻多工系統的資源配置方法及其裝置。此多用戶多輸入多輸出正交分頻多工系統具有多個用戶和子通道。此多個子通道根據容量比率限制以及排程規則被指定給此多個用戶，接著再根據此多用戶多輸入多輸出正交分頻多工系統的極限功率決定每一個用戶的功率。其中，被指定給某個用戶的各個子通道之間的分配功率值是相同的。另外，排程規則可以是極大－極小或極大比率總和規則，而且子通道的配置方式可以為用戶導向的或者子通道導向。
光學全像資料讀取系統
(2014-02-11)
孫慶成
;
余業緯
;
吳啟守
;
林烜輝
本發明係關於一種光學全像資料讀取系統，係配合一記錄裝置，用於讀取儲存於記錄裝置之資料，該系統包括：一光發射裝置，用以發射一讀取光束至記錄裝置之複數個記錄位置以分別產生複數個反射光束，其中該等記錄位置係對應至記錄裝置表面一特定位置，並分別位於一預定深度；一感測裝置，係接收該等反射光束，且該等反射光束分別成像於感測裝置之不同位置；以及一控制裝置，係分別與光發射裝置及感測裝置耦合，以控制光發射裝置，並將該等反射光束於感測裝置的複數個成像對應轉換為複數個訊號，以讀取出記錄於記錄裝置上之資料。
倒置式有機太陽能元件及其製作方法
(2014-02-11)
陳方中
;
吳志力
;
洪毅
本發明係有關於一種倒置式有機太陽能元件及其製作方法，其中，倒置式有機太陽能元件係包括：一基板；一第一電極，係位於基板上；一有機主動層，係位於第一電極上；一光學間隙物，其包括一緩衝層、以及一光學介面層，緩衝層係位於有機主動層上，而光學介面層係層疊於緩衝層上，使緩衝層位於有機主動層與光學介面間；以及一第二電極，係位於光學間隙物上。藉由設置此適當厚度之光學間隙物，可增加有機主動層光的吸收，進而提升有機太陽能元件之能量轉換效率。
高複雜度運輸地圖在有限空間中之顯像方法
(2014-02-11)
王昱舜
;
紀明德
本發明提供一種高複雜度運輸地圖在有限空間中之顯像方法，針對使用者所指定的起訖車站與中間所有經過的路線，對運輸路線進行不等比例的簡化變形，將站點之間的線段設為等長，將路線方向平角化，並微調站點的位置，以符合螢幕顯示區域之大小比例，便於閱讀，再於行經路線的站點附近標上名稱標誌，有助於使用者迅速瞭解乘車及轉乘資訊。
On-chip noise filter circuit
(2014-02-11)
Ker Ming-Dou
;
Yen Cheng-Cheng
;
Chen Tung-Yang
A noise filter circuit for an IC is provided. The noise filter circuit comprises a decoupling unit coupled to a power pad of the IC and a current amplifier circuit coupled to the decoupling unit and the power pad of the IC. The decoupling unit generates a first current in response to a transient voltage being on the power pad of the IC. The current amplifier circuit drains a second current from the power pad of the IC according to the first current.
一種適地性服務系統及方法
(2014-02-11)
陳昱嘉
;
王蒞君
一種適地性服務系統及方法，係令與通訊裝置及雲端數據伺服器連結的適地性服務伺服器分別於註冊模式及服務模式中利用不易被修改或偽造之通訊裝置之國際移動用戶識別碼(international mobile subscriber identity)進行註冊驗證流程及服務驗證流程，俾供使用者透過通訊裝置獲得特定之適地性服務結果，而此分散式驗證技術不但能有效降低資料被竊取之風險，亦能提高服務取得之彈性與便利性。
處理一分頻多工訊號之系統及方法
(2014-02-11)
王海薇
;
林大衛
;
桑梓賢
一種處理一分頻多工訊號的方法，該分頻多工訊號在通道上傳輸，且該方法包含接收該分頻多工訊號，其中該分頻多工訊號的各載波上存在一殘留的載波間干擾與一通道雜訊，且該殘留的載波間干擾來自時變通道或載波頻率漂移，並對該分頻多工訊號進行環字首移除和離散傅利葉轉換，以獲得一頻域訊號，並分析該頻域訊號以獲得該頻域訊號之相鄰載波上的該殘留的載波間干擾與該通道雜訊之相關函數統計特性，且根據該相關函數統計特性，對該分頻多工訊號進行一通訊訊號處理。
Selective motion vector prediction method, motion estimation method and device thereof applicable to scalable video coding system
(2014-02-11)
Li Gwo-Long
;
Huang Hsiao-Shan
;
Chang Tian-Sheuan
A selective motion vector prediction method and a motion estimation method and a device thereof applicable to a scalable video coding (SVC) system are disclosed. The selective motion vector prediction method includes the steps of performing an inter prediction to obtain a first motion vector prediction center; performing an inter-layer motion prediction to obtain a second motion vector prediction center; in the case the first and the second motion vector prediction center satisfying a preset condition, using the same reference data to calculate the rate-distortion costs for the inter prediction and the inter-layer motion prediction; and using the rate-distortion costs as a basis to select one of the inter prediction and the inter-layer motion prediction for applying to the SVC system. Thus, the same reference data is shared to enable reduced memory access in the process of coding and accordingly, reduced cost of and power consumption by memory access.
Exploring the distinction between experimental resonant modes and theoretical eigenmodes: From vibrating plates to laser cavities
(2014-02-12)
Tuan, P. H.
;
Wen, C. P.
;
Yu, Y. T.
;
Liang, H. C.
;
Huang, K. F.
Experimentally resonant modes are commonly presumed to correspond to eigenmodes in the same bounded domain. However, the one-to-one correspondence between theoretical eigenmodes and experimental observations is never reached. Theoretically, eigenmodes in numerous classical and quantum systems are the solutions of the homogeneous Helmholtz equation, whereas resonant modes should be solved from the inhomogeneous Helmholtz equation. In the present paper we employ the eigenmode expansion method to derive the wave functions for manifesting the distinction between eigenmodes and resonant modes. The derived wave functions are successfully used to reconstruct a variety of experimental results including Chladni figures generated from the vibrating plate, resonant patterns excited from microwave cavities, and lasing modes emitted from the vertical cavity.
METHOD FOR MANUFACTURING ORGANIC ELECTRONIC COMPONENT HAVING SLAT COMPOUND
(2014-02-13)
MENG Hsin-Fei
;
Lin Hao-Wu
;
Horng Sheng-Fu
;
Zan Hsiao-Wen
;
Chang Hao-Wen
A method for manufacturing an organic electronic component is provided. The method includes steps of providing a substrate and an organic material; coating the organic material onto the substrate; heating the substrate to form a first carrier transport layer; doping a material having a metal ion to an organic solvent to form an organic solution; and applying the organic solution onto the first carrier transport layer to form a second carrier transport layer.
Real-Time Spectroscopy of Single-Walled Carbon Nanotubes for Negative Time Delays by Using a Few-Cycle Pulse Laser
(2014-02-13)
Kobayashi, Takayoshi
;
Nie, Zhaogang
;
Xue, Bing
;
Kataura, Hiromichi
;
Sakakibara, Youichi
Several investigations using the femtosecond pump-probe technique have been made for coherent phonon dynamics in single-walled carbon nanotubes (SWNTs), which are promising candidates as devices for nanoelectronics and photonics due to their unique properties. However, the most relevant spectroscopic analyses by far have been performed in the positive time range, with the pump pulse coming before the probe. We studied the real-time coherent phonon in SWNTs using 7.1-fs pump-probe measurements for negative time delays in which vibronic coherence between the ground state and exciton state can be observed. Coherent vibrations corresponding to the radial breathing mode caused by the wave packet generated in the exciton state were detected, in contrast to the ground-state wave packet dynamics for positive delays previously reported. The present results show that excited-state wave packets contribute greatly to radial breathing modes in four, (6,5), (6,4), (7,5), and (8,3), chiral systems, but very little to G modes, even though the oscillation period of the latter is 20 fs, which is much shorter than the 100 fs of the exciton life. We discussed the differences in dephasing times in the four different chiral systems.
NANOBALL SOLUTION COATING METHOD AND APPLICATIONS THEREOF
(2014-02-13)
MENG Hsin-Fei
;
ZAN Hsiao-Wen
;
CHAO Yen-Chu
;
WANG Kai-Ruei
;
HSU Yung-Hsuan
The present invention discloses a nanoball solution coating method and applications thereof. The method comprises steps: using a scraper to coat a nanoball solution on a substrate to attach a plurality of nanoballs on the substrate; flushing or flowing through the substrate with a heated volatile solution to suspend the nanoballs unattached to the substrate in the volatile solution; and using the scraper to scrape off the volatile solution carrying the suspended nanoballs, whereby is simplified the process to coat nanoballs. The method can be used to fabricate nanoporous films, organic vertical transistors, and large-area elements and favors mass production.
Room-temperature mid-infrared "M"-type GaAsSb/InGaAs quantum well lasers on InP substrate
(2014-02-14)
Chang, Chia-Hao
;
Li, Zong-Lin
;
Pan, Chien-Hung
;
Lu, Hong-Ting
;
Lee, Chien-Ping
We have demonstrated experimentally the InP-based "M"-type GaAsSb/InGaAs quantum-well (QW) laser lasing at 2.41 mu m at room temperature by optical pumping. The threshold power density per QW and extracted internal loss were about 234 W/cm(2) and 20.5 cm(-1), respectively. The temperature-dependent photoluminescence (PL) and lasing spectra revealed interesting characteristics for this type of lasers. Two distinct regions in the temperature dependent threshold behavior were observed and the transition temperature was found to coincide with the cross over point of the PL and lasing emission peaks. The current-voltage characteristic of "M"-type QW laser was superior to the inverse "W"-type one due to its thinner barrier for holes. Further improvement of the "M"-type QW structure could lead to a cost-effective mid-infrared light source. (C) 2014 AIP Publishing LLC.
Simultaneous 0.8, 1.0, and 1.3 mu m multispectral and common-path broadband source for optical coherence tomography
(2014-02-15)
Tsai, Meng-Tsan
;
Chan, Ming-Che
;
影像與生醫光電研究所
;
Institute of Imaging and Biomedical Photonics
Simultaneous multispectral generation in 0.8, 1.0, and 1.3 mu m wavelength ranges by efficient energy conversions of 1.0 mu m wavelength femtosecond pulses through a nonlinear fiber was reported. The output spectral range of this multispectral light source was composed of 0.6-0.9 mu m blue-shifted Cherenkov radiation (CR), 1.0 mu m residual pump, and 1.1-1.7 mu m red-shifted soliton self-frequency shift (SSFS) with more than 1 mW/nm power-spectral densities. Output characteristics of the multispectral light source were then quantitatively analyzed and the central wavelengths of CR and SSFS emissions can be further easily adjusted by changing the input power into wavelength conversion fiber. Example spectral-domain optical coherence tomography (OCT) images of an IR card and finger skin were also performed with the demonstrated source. Due to the advantages of its simplicity, easily operated, and wavelength tunability, the reported multispectral source could be widely applicable for various spectroscopic OCT applications. (C) 2014 Optical Society of America
High-yield water-based synthesis of truncated silver nanocubes
(2014-02-15)
Chang, Yun-Min
;
Lu, I-Te
;
Chen, Chih-Yuan
;
Hsieh, Yu-Chi
;
Wu, Pu-Wei
A high-yield water-based hydrothermal synthesis was developed using silver nitrate, ammonia, glucose, and cetyltrimethylammonium bromide (CTAB) as precursors to synthesize truncated silver nanocubes with uniform sizes and in large quantities. With a fixed CTAB concentration, truncated silver nanocubes with sizes of 49.3 +/- 4.1 nm were produced when the molar ratio of glucose/silver cation was maintained at 0.1. The sample exhibited (100), (110), and (111) planes on the facets, edges, and corners, respectively. In contrast, with a slightly larger glucose/silver cation ratio of 0.35, well-defined nanocubes with sizes of 70.9 +/- 3.8 nm sizes were observed with the (100) plane on six facets. When the ratio was further increased to 1.5, excess reduction of silver cations facilitated the simultaneous formation of nanoparticles with cubic, spherical, and irregular shapes. Consistent results were obtained from transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and UV-visible absorption measurements. (C) 2013 Elsevier B. V. All rights reserved.
Synthesis, characterization and high temperature CO2 capture capacity of nanoscale Ca-based layered double hydroxides via reverse microemulsion
(2014-02-15)
Chang, Po-Hsueh
;
Chang, Yen-Po
;
Lai, Yen-Ho
;
Chen, San-Yuan
;
Yu, Ching-Tsung
In this study, we report a reverse microemulsion method to prepare stable homogeneous suspensions containing dispersed Ca-Al layered double hydroxide (LDH) nanoparticles. By changing the concentration, reaction time and temperature, the nano-particles with different structural morphology was developed from amorphous aggregation to platelet, regular hexagon and hydrangea-like hierarchical structure. The crystallization and growth of Ca-Al LDH nanoparticles were involved with a nucleation and growth process under nonaqueous polar solvent/surfactant system. After calcination at 700 degrees C, the calcined nano-sized Cal-Al LDH powders synthesized from the reverse microemulsion display remarkable CO2 capture behavior at 600 degrees C, which is strongly dependent on the reaction conditions (concentration, time and temperature). The calcined powder synthesized at 80 degrees C exhibits a faster rate of CO2 absorption and higher CO2 capture capacity of 44 wt% CO2 without apparent degradation under multiple cycles of carbonation-calcination. (C) 2013 Elsevier B. V. All rights reserved.
Development of a feasible assay for the detection of GAA mutations in patients with Pompe disease
(2014-02-15)
Er, Tze-Kiong
;
Chen, Chih-Chieh
;
Chien, Yin-Hsiu
;
Liang, Wen-Chen
;
Kan, Tzu-Min
Background: Pompe disease is an inherited autosomal recessive deficiency of acid alpha-glucosidase (GAA) and is due to pathogenic sequence variants in the corresponding GM gene. While the analysis of enzyme activity remains the diagnostic test of choice for individuals with Pompe disease, mutation analysis remains for establishing a definitive diagnosis. Methods: High resolution melting (HRM) analysis was performed to screen GM mutations. Genomic DNA was extracted from peripheral blood samples of the two patients with Pompe disease and 250 normal controls. Exons 2 through 20 of the GM gene were screened by the HEM analysis. The results were subsequently confirmed by direct sequencing. Results: This assay proved to be feasible in detecting seven known (c2T>C, c.1726G>A, c.1845G>A, c.1935C>A, c.1958C>A, c.2238G>C, and c2815_2816del) GM mutations. Each mutation could be readily and accurately identified in the difference plot curves. We estimated the carrier frequency of the most common mutation, c.1935G>A (p.D645E), in the Taiwanese population to be 02%. Conclusions: In clinical practice, we suggest that HEM analysis is assumed as a fast and reliable method for screening GM gene mutations especially the most common mutations which are responsible for Pompe disease among the Taiwanese populations. (C) 2013 Elsevier B.V. All rights reserved.
Ab Initio Chemical Kinetics for the Unimolecular Decomposition of Si2H5 Radical and Related Reverse Bimolecular Reactions
(2014-02-15)
Wu, Shang-Ying
;
Lee, Yun-Min
;
Wu, Jong-Shinn
;
Lin, Ming-Chang
;
機械工程學系
For plasma enhanced and catalytic chemical vapor deposition (PECVD and Cat-CVD) processes using small silanes as precursors, disilanyl radical (Si2H5) is a potential reactive intermediate involved in various chemical reactions. For modeling and optimization of homogeneous a-Si:H film growth on large-area substrates, we have investigated the kinetics and mechanisms for the thermal decomposition of Si2H5 producing smaller silicon hydrides including SiH, SiH2, SiH3, and Si2H4, and the related reverse reactions involving these species by using ab initio molecular-orbital calculations. The results show that the lowest energy path is the production of SiH+SiH4 that proceeds via a transition state with a barrier of 33.4 kcal/mol relative to Si2H5. Additionally, the dissociation energies for breaking the SiSi and HSiH2 bonds were predicted to be 53.4 and 61.4 kcal/mol, respectively. To validate the predicted enthalpies of reaction, we have evaluated the enthalpies of formation for SiH, SiH2, HSiSiH2, and Si2H4(C-2h) at 0 K by using the isodesmic reactions, such as (HSiSiH2)-H-2+(C2H6Si2H6)-C-1-Si-1+(HCCH2)-H-2 and (Si2H4)-Si-1(C-2h)+(C2H6)-C-1 (Si2H6)-Si-1+(C2H4)-C-1. The results of SiH (87.2 kcal/mol), SiH2 (64.9 kcal/mol), HSiSiH2 (98.0 kcal/mol), and Si2H4 (68.9 kcal/mol) agree reasonably well previous published data. Furthermore, the rate constants for the decomposition of Si2H5 and the related bimolecular reverse reactions have been predicted and tabulated for different T, P-conditions with variational Rice-Ramsperger-Kassel-Marcus (RRKM) theory by solving the master equation. The result indicates that the formation of SiH+SiH4 product pair is most favored in the decomposition as well as in the bimolecular reactions of SiH2+SiH3, HSiSiH2+H-2, and Si2H4(C-2h)+H under T, P-conditions typically used in PECVD and Cat-CVD. (c) 2013 Wiley Periodicals, Inc.
A meta-analysis of genome-wide association studies for adiponectin levels in East Asians identifies a novel locus near WDR11-FGFR2
(2014-02-15)
Wu, Ying
;
Gao, He
;
Li, Huaixing
;
Tabara, Yasuharu
;
Nakatochi, Masahiro
Blood levels of adiponectin, an adipocyte-secreted protein correlated with metabolic and cardiovascular risks, are highly heritable. Genome-wide association (GWA) studies for adiponectin levels have identified 14 loci harboring variants associated with blood levels of adiponectin. To identify novel adiponectin-associated loci, particularly those of importance in East Asians, we conducted a meta-analysis of GWA studies for adiponectin in 7827 individuals, followed by two stages of replications in 4298 and 5954 additional individuals. We identified a novel adiponectin-associated locus on chromosome 10 near WDR11-FGFR2 (P 3.0 10(14)) and provided suggestive evidence for a locus on chromosome 12 near OR8S1-LALBA (P 1.2 10(7)). Of the adiponectin-associated loci previously described, we confirmed the association at CDH13 (P 6.8 10(165)), ADIPOQ (P 1.8 10(22)), PEPD (P 3.6 10(12)), CMIP (P 2.1 10(10)), ZNF664 (P 2.3 10(7)) and GPR109A (P 7.4 10(6)). Conditional analysis at ADIPOQ revealed a second signal with suggestive evidence of association only after conditioning on the lead SNP (P-initial 0.020; P-conditional 7.0 10(7)). We further confirmed the independence of two pairs of closely located loci (2 Mb) on chromosome 16 at CMIP and CDH13, and on chromosome 12 at GPR109A and ZNF664. In addition, the newly identified signal near WDR11-FGFR2 exhibited evidence of association with triglycerides (P 3.3 10(4)), high density lipoprotein cholesterol (HDL-C, P 4.9 10(4)) and body mass index (BMI)-adjusted waisthip ratio (P 9.8 10(3)). These findings improve our knowledge of the genetic basis of adiponectin variation, demonstrate the shared allelic architecture for adiponectin with lipids and central obesity and motivate further studies of underlying mechanisms.
Weak turbulence plasma induced by two-scale homogenization
(2014-02-15)
Jiang, Jiann-Sheng
;
Lin, Chi-Kun
;
應用數學系
;
Department of Applied Mathematics
This paper is devoted to the homogenization of the quasilinear theory of the plasma turbulence described by the Vlasov-Poisson system. It is shown that the homogenization limit, in the sense of two-scale limit, of the distribution function satisfies the linear Vlasov-Poisson equations. Moreover, the limit distribution function can be decomposed into the mean and the fluctuation parts and the mean part (the equilibrium distribution function) is shown to be the solution of the nonlocal quasilinear velocity-space diffusion equation. We also investigate the Landau damping from the point of view of homogenization through the two-scale limit. Crown Copyright (C) 2013 Published by Elsevier Inc. All rights reserved.