Browsing by Issue Date, starting with "2020-09-14"

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Hierarchical two-dimensional molecular assembly through dynamic combination of conformational states at the liquid/solid interface
(2020-09-14)
Maeda, Matsuhiro
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Nakayama, Ruri
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De Feyter, Steven
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Tobe, Yoshito
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Tahara, Kazukuni
Self-sorting of multiple building blocks for correctly positioning molecules through orthogonal recognition is a promising strategy for construction of a hierarchical self-assembled molecular network (SAMN) on a surface. Herein we report that a trigonal molecule, dehydrobenzo[12]annulene (DBA) derivative having three tetradecyloxy chains and three hydroxy groups in an alternating manner, forms hierarchical triangular clusters of different sizes ranging from 2.4 to 16.4 nm, consisting of 3 to 78 molecules, respectively, at the liquid/graphite interface. The key is the dynamic combination of three different conformational states, which is solvent and concentration dependent. The present knowledge extends design strategies for production of sophisticated hierarchical SAMNs using a single component at the liquid/solid interface.
Surface plasmon resonance effect on laser trapping and swarming of gold nanoparticles a an interface
(2020-09-14)
Huang, Chih-Hao
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Kudo, Tetsuhiro
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Bresoli-Obach, Roger
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Hofkens, Johan
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Sugiyama, Teruki
Laser trapping at an interface is a unique platform for aligning and assembling nanomaterials outside the focal spot. In our previous studies, Au nanoparticles form a dynamically evolved assembly outside the focus, leading to the formation of an antenna-like structure with their fluctuating swarms. Herein, we unravel the role of surface plasmon resonance on the swarming phenomena by tuning the trapping laser wavelength concerning the dipole mode for Au nanoparticles of different sizes. We clearly show that the swarm is formed when the laser wavelength is near to the resonance peak of the dipole mode together with an increase in the swarming area. The interpretation is well supported by the scattering spectra and the spatial light scattering profiles from single nanoparticle simulations. These findings indicate that whether the first trapped particle is resonant with trapping laser or not essentially determines the evolution of the swarming. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Fast-tracking of single emitters in large volumes with nanometer precision
(2020-09-14)
Louis, Boris
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Camacho, Rafael
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Bresoli-Obach, Roger
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Abakumov, Sergey
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Vandaele, Johannes
Multifocal plane microscopy allows for capturing images at different focal planes simultaneously. Using a proprietary prism which splits the emitted light into paths of different lengths, images at 8 different focal depths were obtained, covering a volume of 50x50x4 mu m(3). The position of single emitters was retrieved using a phasor-based approach across the different imaging planes, with better than 10 nm precision in the axial direction. We validated the accuracy of this approach by tracking fluorescent beads in 3D to calculate water viscosity. The fast acquisition rate (>100 fps) also enabled us to follow the capturing of 0.2 mu m fluorescent beads into an optical trap. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Reduction of phase error on phase-only volume-holographic disc rotation with pre-processing by phase integral
(2020-09-14)
Yu, Yeh-Wei
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Chen, Yuan-Cheng
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Huang, Kun-Hao
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Cheng, Chih-Yuan
;
Yang, Tsung-Hsun
In this paper, we present a study of observation of phase error of a volume holographic storage disc during the reading process when the disc is rotated or displaced in the theoretical calculation and the corresponding experiment. This additional phase error will dramatically decrease the bit error rate of a phase-only signal, even applying double-frequency shearing interferometry to retrieve the stored phase signal. Then we propose a novel approach to solve the problem. The stored signal is pre-processed by phase integral along the shearing direction so that applying the integral process to decode the phase signal is not necessary in the readout process. The proposed approach effectively reduces the error in phase retrieval and will be useful when applying double-frequency shearing interferometry in the readout process for volume holographic storage. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
設計思考整合動手實作之跨領域專案式學期課程(II):智慧醫院
(2020-09-14)
陳冠宇
;
國立交通大學生醫工程研究所
Quantum phase transition in a two-dimensional Kondo-Heisenberg model: A dynamical Schwinger-boson large-N approach
(2020-09-15)
Wang, Jiangfan
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Chang, Yung-Yeh
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Mou, Chung-Yu
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Kirchner, Stefan
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Chung, Chung-Hou
We generalize the dynamical large-N multichannel Schwinger-boson approach to study the quantum phase transition of a two-dimensional Kondo-Heisenberg model, relevant for heavy electron systems, close to an antiferromagnetic Kondo destruction quantum critical point. By breaking up a Kondo singlet into a charge fermion (holon) and a bosonic spinon, we identify and characterize the quantum phase transition from an antiferromagnetically ordered state to a Kondo-dominated paramagnetic state, and attribute a jump in the holon phase shift to Kondo breakdown. We calculate transport and thermodynamic quantities. The global finite-temperature phase diagram and the critical behavior of various physical observables therein show a close resemblance to experimental observations.
國民參與刑事審判模擬法庭之觀察與評析 ─兼論定型化指令、行為準則以及決策樹狀圖的使用
(交通大學科技法律學院（原名稱：交通大學科技法律研究所）, 2020-09-15)
金孟華
;
Mong-Hwa Chin
本文綜整作者於2018 至2019 年間參與全國各地方法院所舉辦之國民參與刑事審判模擬審判觀察心得，分別針對選任程序、開審陳述、證據調查、國民法官對法律的理解、論罪評議以及量刑評議等議題進行介紹。此外，也針對所觀察到之問題，提出軟性規範的重要性，這當中包括針對職業法官以及國民法官使用各種定型化「指令」與「行為準則」，以及透過「決策樹狀圖」減少職業法官及國民法官之認知負擔。本文同時建議未來定型化指令、行為準則以及決策樹狀圖所應具備之要素供各界參考。最後，本文主張主管機關應組成一功能性委員會，有系統地將所見所聞進行整理，並且將相關問題以及解答，彙整、內化成一套全國共用之決策工具系統，供職業法官及國民法官使用。
秘密保持命令之回顧與展望
(交通大學科技法律學院（原名稱：交通大學科技法律研究所）, 2020-09-15)
劉怡君
;
杜佩珊
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陳俐雯
;
Yi-Chun Liu
;
Pei-Shan Tu
立法院因應國內偵查實務所需，提出由檢察官為核發機關之偵查保密令制度，作為偵查程序中衡平發現真實與營業秘密保護之手段。偵查保密令係我國因應實務所需而創建之制度，欠缺國外立法例及實務操作前例，將來偵查保密令制度之建置與執法操作，應有研議因應必要。因偵查保密令制度係發想於審理中秘密保持命令制度，本文將回顧國內及國外有關秘密保持命令制度之研究文獻與實務見解，對國內審判實務操作秘密保持命令制度之法院實務審理狀況相關議題，與實務工作者進行深度訪談，及就秘密保持命令裁定進行量化研究，分析國內與國外審判實務情況異同，提出實證研究結果及相關分析意見，並提出本文認為我國偵查保密令制度建立意義，及實務操作借鏡秘密保持命令研究成果時應注意之點，期望讓從事實務工作者能更深入瞭解我國秘密保持命令實務狀況，讓國內偵查保密令及秘密保持命令制度均能穩健成熟發展，發揮制度應有之訴訟程序中兼顧保護營業秘密及程序權利的目的。
High performance UV photodetector based on MoS2 layers grown by pulsed laser deposition technique
(2020-09-15)
Kumar, Sujit
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Sharma, Anjali
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Ho, Yen Teng
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Pandey, Akhilesh
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Tomar, Monika
Highly efficient ultraviolet (UV) photodetector based on Molybdenum Disulfide (MoS2) layers has been fabricated using pulsed laser deposition (PLD) technique. Systematic layer dependent photoresponse studies have been performed from single layer to 10 layers of MoS2 by varying the laser pulses to see the effect of the number of layers on the photoelectrical measurements. Raman and Photoluminescence studies have been carried out to ensure the growth of high-quality MoS2 layers. Layers of MoS2 grown at 100 pulses were found to exhibit the characteristic Raman phonon modes i.e. E-2g(1) and A(1g )at 383.8 cm(-1) and 405.1 cm(-1) respectively and Photoluminescence (PL) spectra show B exciton peak for MoS2 at around 625 nm suggesting the growth of high-quality MoS2 layers. Atomic force microscopy (AFM) thickness profiling and cross sectional-high resolution transmission electron microscopy (HRTEM) analysis gives the thickness of grown MoS2 to be 2.074 nm and 1.94 nm, respectively, confirming the growth of trilayers of MoS2. X-ray photoelectron spectroscopy (XPS) spectra of the grown trilayer sample show characteristic peaks corresponding to Molybdenum and Sulphur doublet (Mo4+ 3d(5/2,3/2) and S 2p(3/2,1/2)) confirming the chemical state of pure MoS2 phase without the presence of any Molybdenum oxide state. Dynamic photoelectrical studies with Indium Tin Oxide (ITO) as contact electrode upon UV laser illumination show superior responsivity of 3 x 10(4) A/W at 24 mu W optical power of the incident laser (lambda = 365 nm) and very high detectivity of 1.81 x 10(14) Jones at a low applied bias of 2 V. The obtained results are highly encouraging for the realization of low power consumption and highly efficient UV photodetectors based on MoS2 layers. (C) 2020 Elsevier B.V. All rights reserved.
Microwave behavior of a monolithic dual-wavelength DFB laser based on current model
(2020-09-15)
Huang, Chung-Ping
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Huang, Yu-Ming
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Hwang, Yi-Chia
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Dong, Yao-Zhong
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Hsu, Shun-Chieh
A driving current based model describing the optical heterodyne output of a monolithic dual-wavelength DFB laser is established. The linear relationship between the driving current and the laser output wavelength was applied to obtain the simple equation for this purpose. Actual measured data from the real devices were used for the initial parameter extraction and the practical model can then be built. By using this model, the influence of different laser parameters towards the radio frequency signal generation and different current configuration on the output characteristic can be demonstrated. This can facilitate the future design of such integrated photonic devices.
我國同性婚姻之法律衝突問題
(交通大學科技法律學院（原名稱：交通大學科技法律研究所）, 2020-09-15)
林恩瑋
;
En-Wei Lin
司法院釋字第748 號解釋施行法僅就內國的同性婚姻關係做出實體法上的相關規定，但對於涉外的同性婚姻關係應如何適用法律，並無明文。我國現行法制對於與大陸地區人民之婚姻、與港澳地區人民之婚姻及與外國人民之婚姻在法律適用規定上均不完全相同，使得涉外同性婚姻的法律適用問題越形複雜。我國法制應如何定性「同性婚姻」？關於涉外同性婚姻之準據法，是否亦應適用結婚之準據法規定？上開問題均為我國同性婚姻之法律衝突之核心。本文以比較法學分析方法，就上開問題逐一進行分析，並試著提出一些具體建議予我國司法實務工作者。
Physicochemical and electrochemical properties of the (fluorosulfonyl) (trifluoromethylsulfonyl)amide ionic liquid for Na secondary batteries
(2020-09-15)
Yang, Huan
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Luo, Xu-Feng
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Matsumoto, Kazuhiko
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Chang, Jeng-Kuei
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Hagiwara, Rika
In this study, thermal, physical, and electrochemical properties of the ionic liquid electrolyte system, Na[FTA]-[C(3)C(1)pyrr][FTA], (FTA(-) = (fluorosulfonyl) (trifluoromethylsulfonyl)amide and C(3)C(1)pyrr(+) = N-methyl-N-pro-pylpyrrolidinium) have been investigated for Na secondary batteries. The asymmetric FTA. structure provides a wide liquid-phase temperature range, especially at low x(Na[FTA]) (x(Na[FTA]) = molar fraction of Na[FTA]) and low temperature range. Glass transition at 170-209 K is the only observed thermal behavior in the x(Na [FTA]) of 0.0-0.4. Temperature dependence of viscosity and ionic conductivity obeys the Vogel-Tammann-Fulcher equation, and the correlation between molar conductivity and viscosity follows the fractional Walden rule. The anodic potential limits are above 5 V vs. Na+/Na at 298 and 363 K. The noticeable effects of x(Na [FTA]) are observed in the electrochemical performance of Na metal and hard carbon electrodes. In both cases, a moderate concentration, x(Na[FTA]) of 0.2-0.3, enables favorable charge-discharge behavior. At 363 K, the discharge capacities of the hard carbon electrode at x(Na[FTA]) of 0.3 are 260 and 236 mAh g(-1) at the current densities of 20 and 200 mA g(-1), respectively. The optimum cycling performance occurs at x(Na[FTA]) = 0.3, providing satisfactory capacity retention and high average Coulombic efficiency.
私部門之金融揭弊者保護─我國草案與美國法之對照
(交通大學科技法律學院（原名稱：交通大學科技法律研究所）, 2020-09-15)
林志潔
;
楊善淳
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劉千瑜
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林哲辰
;
Chih-Chieh Lin
鑑於金融機構之經濟重大影響性，本文自金融機構角度切入，介紹揭弊者保護理論及相關規範，以凸顯我國揭弊者保護仍為不足之現況，並援引美國法案例與制度，以對我國法務部廉政署研擬，並於2020 年4 月8 日經立委提案之「公益揭弊者保護法草案」做一檢視。本文依據揭弊者與其他行為人間之身分關係，將揭弊者劃分為不同類型，因應各類型揭弊者所面臨之困境，提出相應之保護措施，並以金融機構之產業特性及現存弊病，說明金融機構中揭弊者保護制度建立之必要性。由於我國揭弊者保護相關法制闕漏，且美國法之金融機構吹哨者保護相關法制齊備，如沙賓法（Sarbanes-Oxley Act）、華爾街改革與消費者保護法（Dodd-Frank Wall Street Reform and Consumer Protection Act）即詳盡規範相關保護、獎勵措施，且相關案例繁多可供借鑑，因此本文援引美國法案例及制度，以輔助檢視揭弊者保護法草案，以期完善揭弊者保護制度，並對金融機構及主管機關於揭弊者法制建構後，提出相關應行作為建議。
國際商務仲裁模擬法庭教學的實踐與探索國際商務仲裁實例演練國際模擬法庭專題
(2020-09-16)
陳在方
;
國立交通大學科技法律學院
「化繁為簡」：運用 Arduino 互動模組於建構健康診斷系統即時實作
(2020-09-16)
林子剛
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國立交通大學土木工程學系
理工人的第一門法律課：智慧財產權法
(2020-09-19)
莊弘鈺
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國立交通大學科技法律研究所
導讀：聽客家研究者說故事
(國立交通大學傳播與科技學系, 2020-09-19)
國立交通大學傳播與科技學系副教授黃淑鈴
整合「知識傳播」與「人物報導」的企畫構想，突破「新客家人群像」以往的人物報導形式，這本書收錄的報導除了刻畫研究者，也希望將其研究發現與成果，轉譯成更平易近人的語言。顯示出當今客家研究主題的多元化。
Evaluating the stability of anti-dip slate slope using an innovative failure criterion for foliation
(2020-09-20)
Weng, Meng-Chia
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Chang, Chien-Yu
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Jeng, Fu-Shu
;
Li, Hung-Hui
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土木工程學系
Toppling failure is one main failure types of anti-dip slate slopes, and is strongly affected by the mechanical properties of foliation. This study conducted a series of pull-off tests and direct shear tests on slate foliation to obtain its failure envelope, and an innovative failure criterion was accordingly proposed. The proposed failure criterion exhibits a nonlinear trend in the low normal stress range; considers both tensile and shear strengths, and has three material parameters - tensile strength T-0, alpha, and beta. Parameters alpha and beta are related to the slope variation of the failure criterion. To investigate the effectiveness of the proposed failure criterion on the evaluation of slope stability, it is implemented in a discrete element code UDEC and a simulation was carried out to evaluate the deformation and failure pattern of an anti-dip slate slope. The results of the UDEC analysis demonstrate that the simulated failure pattern and deformation characteristics agree with that of an actual anti-dip slate slope. The proposed failure criterion of foliation and the Mohr-Coulomb criterion are further compared in slope stability analysis. The proposed failure envelope accurately reflects the tensile strength and shear strength under low normal stress, but the Mohr-Coulomb criterion apparently overestimates the strength in this stress range. Therefore, the proposed criterion is more effective than the existing criteria in predicting the toppling failure of slate slopes.
"My English is Poor!":透過相互教學法及鷹架式⼝說策略教學提升研究⽣專業英語溝通能⼒
(2020-09-20)
林律君
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國立交通大學英語教學研究所
透過協同合作開發程式專案提升大學生程式語言課程之學習成效
(2020-09-20)
蕭子健
;
Tzu-Chien Hsiao
;
國立交通大學資訊工程學系