32,350 research outputs found
Wei-Jong Yeh, Structures métriques des poésies de Pétrone : pour quel art poétique ?, 2007
No full textTordeur Pol. Wei-Jong Yeh, Structures métriques des poésies de Pétrone : pour quel art poétique ?, 2007. In: L'antiquité classique, Tome 78, 2009. pp. 330-331
Aldo Setaioli, Arbitri Nugae. Petronius’ Short Poems in the Satyrica : Frankfurt am Main, Peter Lang, « Studien zur klassischen Philologie » Band 165, 2011
No full textYeh Wei-jong. Aldo Setaioli, Arbitri Nugae. Petronius’ Short Poems in the Satyrica : Frankfurt am Main, Peter Lang, « Studien zur klassischen Philologie » Band 165, 2011. In: Vita Latina, N°187-188, 2013. pp. 374-375
Applications of Phase-Locked Loops with Area-Efficiency and Background Supply Noise Cancellation
No full text這篇論文的主題主要分為兩個部分，第一部分實現了一個具有小面積與無除頻器之次諧波注入鎖相迴路。次諧波注入鎖定的技巧被用來壓抑振盪器之相位雜訊。藉由降低迴路濾波器的電容值並同時確保次諧波注入鎖相迴路的穩定性，我們提出了一個小面積的次諧波注入鎖相迴路。除此之外，我們也提出了一個注入時間點校正之技巧去對齊振盪器之最佳注入點。量測到的相位雜訊驗證了次諧波注入鎖相迴路在無除頻器時，有較佳的雜訊效能，相較於有除頻器的情況。方均根抖動量為0.64ps，總面積為0.0074mm2. 第二部分實現了一個背景校正供應電壓雜訊的全數位鎖相迴路。我們使用了供應雜訊電流消去的做法來改善因為振盪器的供應電壓有雜訊存在所造成方均根抖動量變差的情況。我們提出了一個數位校正的方式去精準校正全數位鎖相迴路在不同製程、電壓、溫度引起的變異。在振盪器的供應電壓注入峰對峰值為50 mV，頻率為10 kHz的弦波雜訊時，量測到的峰對峰值抖動量從原本的41.87 ps降低至29.11 ps。量測到的方均根抖動量從原本的 4.43 ps 降低到 4.03 ps。經由供應電壓雜訊所引起的突波從原本的 -13.88 dB降低到 -25.41 dB。在未注入供應電壓雜訊時，量測到的峰對峰值和方均根抖動量分別為 29 ps 和 3.4ps。此全數位鎖相迴路的功耗和面積分別為2.915 mW 以及0.0216mm2.This thesis consists of two parts. The first part implements an area-efficient divider-less sub-harmonically injection-locked PLL (SIPLL). Sub-harmonically injection-locked technique is employed to suppress VCO accumulation noise. Besides, an area-efficient SIPLL is present to reduce the capacitor in the loop filter, which also ensures the SIPLL to be stable. In addition, a self-adjusted injection timing method is also proposed. The measure phase noise validates the better performance without a divider compared with that with a divider. The RMS jitter is 0.64 ps. Moreover, the total area is 0.0074 mm2. The second part implements a digital phase-locked loop (DPLL) with background supply noise cancellation. The DPLL employs supply noise current cancellation to mitigate jitter performance degradation due to supply noise on the oscillator supply voltage. A digital background cancellation is proposed to accurately cancel the supply noise under different process, and temperature conditions. In the presence of a 50 mVPP 10 kHz sinusoidal supply noise tone, the cancellation scheme reduces the peak-to-peak jitter from 41.87 ps to 29.11 ps. The rms jitter is reduced from 4.43 ps to 4.03 ps and the spurious supply noise spur is improved from -13.88 dB to -25.41 dB. In the absence of any supply noise, the peak-to-peak jitter and rms jitter are 29 ps and 3.4ps, respectively. The power consumption is 2.915mW and its active area is 0.0216mm2
Synthesis, Crystal Structures and Physical Properties of Series of Linear Tetranickle Complexes with he Naphthyridine-Functionalized Amine Ligands
No full text本論文是探討以萘啶胺 (H2any) 衍生物配基，吡啶萘啶胺(Hpyany)，萘啶甲基醯胺 (Hnyma) 與金屬形成錯合物之合成、構造與物理性質研究。本研究合成出三種不同形式之金屬錯合物，將分別於不同章節做介紹與探討。 首先利用四氮配基吡啶萘啶胺和磺醯甲苯基二吡啶二胺 (H2Tsdpda) 合成出ㄧ系列之混配基四核鎳 (Ni) 金屬串錯合物，錯合物[Ni4(Three types of metal complexes with naphthyridine-functionalized amine ligands, 2-α-pyridylamino-1,8-naphthyridine (Hpyany) and N-1,8-naphthyridyl methylamide (Hnyma) have been prepared. irst, a series of linear tetranickel complexes coordinated by two kinds of ligands, Hpyany and p-toluenesulfonyl di-pyridyl-di-amine (H2Tsdpda), have been synthesized. Their structures were determined by single-crystal X-ray diffraction analysis. The ligands, Hpyany and H2Tsdpda, have been deprotonated to act as tetradentate ligands and helically wrapped the nickel metal ions to form a tetranuclear metal string, which is structurally similar to the previous report. The molecular structure of the one-electron reduction species [Ni4(目 錄文摘要…………………………………………………………………I文摘要 (Abstract)……………………………………………………III一章 緒論…………………………………………………………1-1 研究動機……………………………………………………1-2 影響金屬-金屬作用的因素…………………………………2-2-1 金屬-金屬多重鍵理論……………………………………...2-2-1.1 雙核金屬錯合物之鍵結形態…………………………2-2-1.2 直線型四核金屬串錯合物之鍵結形態………………5-2-2 金屬間之作用和金屬氧化數的關係………………………6-3 配基與多核金屬串錯合物…………………………………9-3-1 配基簡介…………………………………………………9-3-2 金屬串錯合物簡介...........................................................12-4 不對稱型配基及其金屬串錯合物…………………………15-5 混配基金屬串錯合物………………………………………17-6 萘啶衍生物配基及其雙核金屬錯合物簡介…………………18-7 研究方向……………………………………………………20二章 實驗部份……………………………………………………21-1 試藥與儀器…………………………………………………21-1-1 試藥與溶劑……………………………………………21-1-2 儀器……………………………………………………22-2 實驗步驟……………………………………………………242-2-1 前驅物的合成…………………………………………242-2-2 配基合成………………………………………………29-2-3 混配基四核鎳金屬串錯合物與銅、銀錯合物之合成…33-3 晶體數據的收集與處理……………………………………43三章 結果與討論…………………………………………………44-1 直線型四核鎳金屬串錯合物合成、結構與物理性質研究...44-1-1 引言……………………………………………………44-1-2 直線型四核鎳金屬串之合成…………………………46-1-3 結構解析與討論………………………………………46-1-4 直線型四核鎳金屬串鎳-鎳距離之探討………………53-1-4.1 直線型四核鎳[Ni4]7+金屬串錯合物...…...………....54-1-4.2 直線型四核鎳[Ni4]8+金屬串錯合物…………………56-1-5 配基位向之探討………………………………………59-1-6 磁性量測與分析……………………………………64-1-6.1 直線型四核鎳[Ni4]7+金屬串錯合物………………..67-1-6.2 直線型四核鎳[Ni4]8+金屬串錯合物…………………72-1-7 電化學分析……………………………………………79-2 雙核銅、銀錯合物合成、結構與物理性質之研究…………84-2-1 引言……………………………………………………84-2-2 雙核銅、銀錯合物之合成………………………………85-2-3 結構解析與討論………………………………………85-2-4 貨幣金屬族錯合物結構探討…………………………92-2-5 磁性量測與分析………………………………………95-2-6 電化學分析……………………………………………96-3 三核銅金屬錯合物合成、結構與物理性質之研究………98-3-1 引言……………………………………………………98-3-2 三核銅金屬錯合物之合成……………………………98-3-3 結構解析與討論………………………………………98-3-4 磁性量測與分析………………………………………101-3-5 電化學分析……………………………………………102四章 總結………………………………………………………103-1 結論………………………………………………………...103-2 未來方向…………………………………………………105考文獻………………………………………………………………106錄 Mass、NMR、IR與電子吸收光譜……………………………109錄 X光單晶數據與ORTEP圖……………………………………..13
Interference-Aware Graph-Based Resource Allocation for Device-to-Device Broadcast communication
No full text4G 無線系統為了提供行動寬頻服務發展進階長期演進技術(LTEA)
。裝置對裝置通訊系統(D2D) 是個能夠提供點對點通訊服務的前景
科技，其增進了資源的使用，以及頻譜的使用效率。在這篇文章裡，
我們提出了一個集中式的資源分配方式於裝置對裝置通訊系統之下。
大部份的干擾源自於不同裝置對裝置廣播使用者之間共用同樣的資源，
這會嚴重的影響其他的使用者。因此，需要一個有效率的方法來進行
資源分配以協調干擾。特別的是，我們將不同的裝置對裝置廣播團體
形成一個新穎的干擾感知的圖。我們提出了一個集中式干擾感知的資
源分配用於裝置對裝置廣播通訊，其可以有效的減少在不同團體之間
受到干擾的裝置對裝置通訊使用者。這方法的目標是希望能夠增進系
統的吞吐量且消除不同裝置對裝置團體之間的干擾。此外，根據修改
集中式的方法，我們也提出了分散式的方法。The Long Term Evolution-Advanced (LTE-A) networks are being developed
to provide mobile broadband services for the fourth generation (4G) cellular
wireless systems. Device-to-Device (D2D) communications is a promising
technique to provide wireless peer-to-peer communication services and
enhance resource utilization, as well as spectrum efficiency. In this thesis,
a centralized resource allocation scheme involving several Device-to-Device
(D2D) broadcast groups underlaying cellular network is proposed. The great
amount of interference caused by sharing the resources between different
D2D broadcast users may significantly affect the performances of other D2D
users. Therefore, an efficient resource allocation method is necessary to coordinate
the interference. Specifically, we formulate the interference relationships
among different D2D broadcast groups as an innovative interferenceaware
graph. We propose a centralized interference-aware graph based resource
allocation algorithm that can effectively minimize the interfered D2D
users between different D2D broadcast groups. This scheme aims to optimize
the throughput of D2D communications over the shared uplink spectrum
meanwhile mitigate different D2D broadcast groups from affecting the performances
of each other. Moreover,a distributed algorithm is proposed based on some modifications of the centralized one.口試委員會審定書
誌謝ii
摘要iii
Abstract iv
1 Introduction 1
1.1 Background 1
1.2 Goal and Challenge 2
1.3 Contribution 2
2 System model 4
3 Proposed Scheme 8
3.1 Centralized Resource Allocation 8
3.1.1 Association 8
3.1.2 Notation definition 9
3.1.3 Resource allocation 10
3.1.4 Complexity analysis 11
3.2 Distributed Resource Allocation 12
3.2.1 Association 12
3.2.2 Resource Occupied Message 13
3.2.3 Resource allocation 14
3.2.4 Trade off 16
4 Simulator 17
4.1 Parameter settings 17
4.2 BS/MS location 18
4.3 Assoiciation 18
4.4 Resource allocation 18
4.5 SNR and traffic calculation 18
4.6 Simulation settings 18
4.6.1 UE dropping 19
4.6.2 Channel Model 20
4.6.3 Traffic Model 20
5 Simulation 23
5.1 Comparison 23
5.2 Evaluation 25
6 Related work 30
7 Conclusion 36
Bibliography 3
Linear Tetranickel String Complexes with Mixed Supported Ligands and Mixed-Valence Units [Ni(2)](3+): Synthesis, Crystal Structure, and Magnetic Studies
No full textNumerical Investigation of Performance Curve and Aeroacoustic Characteristics of an Axial Fan System
No full text全密閉式風扇冷卻馬達廣泛應用於工業界，為了達成提高馬達致冷效果以及符合國家工廠噪音管制標準之目的，風扇冷卻系統氣動和聲學特性研究成為重要的研究課題。本研究主要使用計算流體力學軟體ANSYS Fluent內建之多重參考座標系統和滑移網格進行旋轉流場模擬。我們首先建立一數值風洞模型，針對Multi-Wing軸流式風扇採用傳統方法和下游流阻法兩種邊界條件進行風扇性能曲線的量測驗證。模擬結果和實驗數據相比，傳統方法最大誤差可達65.8%，而下游流阻法的結果較為精準，最大誤差僅8.72%。接著使用多重參考座標系統的擬穩態結果作為初始解代入滑移網格計算，誤差也皆小於5%，驗證了本研究之數值風洞是可行的。研究的後半段採用數值風洞計算包含安全網目、風扇、風罩和擋板的全密閉式風扇冷卻系統之系統性能曲線和聲場，安全網目以多孔隙材料簡化。我們嘗試四種幾何策略改善原始系統的性能，研究結果顯示幾何策略可大幅提升系統流量，但是由於後方斜流道和流體的交互作用產生多餘的聲源，和原始系統相比亦會造成少量噪音的產生。 關鍵字：全密閉式風扇冷卻馬達、多重座標參考系統、滑移網格、風扇性能曲線、流道設計、下游流阻法Totally-Enclosed-Fan-Cooled (TEFC) motor is extensively utilized in modern industry. To reach the purposes of improving the motor cooling effect and according with the factory noise control standard, the research of aerodynamic and acoustic characteristics of the fan cooling system become important issues. In this study, we mainly use the computational fluid dynamics software, ANSYS Fluent and its build-in rotating model, Multiple Reference Frame (MRF) and sliding mesh (SM) models to simulate the swirling flow. We first construct a numerical wind tunnel which is conducted by two boundary conditions, the conventional method and the Downstream Flow Resistance (DFR) method, calculate the flow field of the Multi-Wing axial fan and verify the fan performance measurement. In comparison to the experimental data, the maximum error of the conventional method result is up to 65.8% and the DFR method result becomes more accurate and its maximum error is reduced to 8.72%. We then compute the transient result which begins from the quasi-steady initial solution by the sliding mesh model, and the errors are all less than 5%. These results verify that the numerical wind tunnel is feasible. In the last half of this research, we apply the previous numerical wind tunnel to compute the system performance curve and the acoustic field of the fan cooling system including the safety mesh, fan, shroud, and plate. The safety mesh is simplified by the porous zone. We try four strategies to modify the geometry of the system on the purposes of improving the volume flow rate and reducing the noise of the original system. The results show that the modified system has the ability to improve the system volume flow rate obviously, but the system noise also increases a little due to the interaction between the deflected pathway and the fluid in comparison to the original system. Keywords: Totally-Enclosed-Fan-Cooled motor, Multiple Reference Frame, Sliding mesh, Fan performance curve, Downstream flow resistance metho
<Articles>A Study of Wu-che-wei 兀者衛 in the Ming 明 Era
No full text個人情報保護のため削除部分あり兀者衛人は、明代の松花江流域に住んだツングース系部族の一種である。兀者衛に関する記録は、今日ではほとんど遺存せず、ただ朝鮮世宗二十一年(一四三九) 正月、都児也という兀者衛人が朝鮮に来朝し、そのさいの発言が『李朝世宗実録』に記るされるにすぎない。本論稿は、都児也の発言に即し、兀者衛の位置、生活様式につき考究したものである。第一・二章では、明代海西女直の範囲と兀者衛人朝鮮来朝の経過を論じ、第三章では、明代兀者衛の本拠が今日の吉林省烏拉街地方に在ったこと、第四章以下では、兀者衛人の牧畜、婚姻、結納、婚期、逆縁結婚、樹上葬の系譜等につき考察し、生活様式、ことに葬送形式および住地の近似性から、明代の兀者衛人が近世の赫哲族と系譜的に連らなるものであることを推定した。Wu-che-wei is a tribe of the Tunguses who lived in the basin of the Sungari River 松花江. Few records remain today concerning this tribe. In January of the 21st year of Korean Se-jong 世宗 (1439) a Wu-che-wei whose name was Tou-erh-yeh 都児也 visited Korea, and his words were recorded in Yijo-sejong-silnog 李朝世宗実録 (The Authentic Account of Se-jong in the Yi Dynasty). The writer deals, according to what Tou-erh-yeh told then, with the position, marriage, funeral on the tree, etc. of Wu-che-wei. In the first and second chapters he discusses the extent of Hai-hsinü-chih 海西女直 in the Ming era and the process of a Wu-che-wei coming to visit Korea, and in the third chapter he estimates that the base of Wu-che-wei in the Ming era was located in the district of Wu-la-chieh 烏拉街, Chi-lin-sheng 吉林省 as it is called now. From the fourth to the seventh chapter he makes comments on the system of marriage, a ceremonial exchange of betrothal gifts, the marriage age, levirate, funeral on the tree, etc. of Wu-che-wei, and estimates, from the similarity of their life and funeral styles and living quarters, that Wu-che-wei in the Ming era is congeneric with the Goldi 赫哲族 in modern ages
sj-docx-1-ajr-10.1177_19458924221140965 - Supplemental material for Lipopolysaccharide-Initiated Rhinosinusitis Causes Neuroinflammation and Olfactory Dysfunction in Mice
No full textSupplemental material, sj-docx-1-ajr-10.1177_19458924221140965 for Lipopolysaccharide-Initiated Rhinosinusitis Causes Neuroinflammation and Olfactory Dysfunction in Mice by Chien-Fu Yeh, Wei-Hao Huang, Ming-Ying Lan and Wei Hung in American Journal of Rhinology & Allergy</p
Supplementary_Material__18_Mar_1 – Supplemental material for Application of response surface methodology to establish friction model of upset forging
No full textSupplemental material, Supplementary_Material__18_Mar_1 for Application of response surface methodology to establish friction model of upset forging by Jia-Jyun Hong and Wei-Ching Yeh in Advances in Mechanical Engineering</p
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