Browsing by Issue Date, starting with "2019-06-28"

Now showing 1 - 20 of 7342

Contrapuntal Composition and Autonomous Style Development of Organum Motets by using AntsOMG
(2019-06-28)
Chang, Chun-yien
;
Chen, Ying-ping
;
資訊工程學系
;
Department of Computer Science
球隊年度盛事——歡樂校友盃
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
本校各球隊每年最盛大的一場活動──校友盃球賽，即是邀請歷屆球隊的校友，撥冗回母校，與在校生攜手進行球賽交流！學長姐豐富的經驗與表現，都是學弟妹成長學習的典範，每年此時，在各球場揮汗打球與歡笑聲中，總能更拉近彼此間緊密的情誼！學弟妹們也非常感謝學長姐們一直以來的支持，以下就是今年各球隊所分享之108年排球 /男籃 /桌球 /女籃 /足球校友盃球賽精采回顧！他們也期盼明年，再次與學長姐切磋討教！
N,P co-coordinated Fe species embedded in carbon hollow spheres for oxygen electrocatalysis
(2019-06-28)
Zhu, Xiaofeng
;
Tan, Xin
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Wu, Kuang-Hsu
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Chiang, Chao-Lung
;
Lin, Yu-Chang
The increasing interest in fuel cell technology and metal-air batteries has led to the need for stable and effective catalyst materials to replace noble metal (such as Pt) based benchmarks for the oxygen reduction reaction (ORR). In this study, carbon hollow spheres with highly dispersed nitrogen and phosphorus co-coordinated iron atoms (FeNPC) on their surface have been successfully fabricated, exhibiting exceptional ORR activity in both alkaline and acidic solutions. Specifically, the obtained FeNPC catalyst is capable of catalyzing the ORR with an onset potential of 1.03 V and a half-wave potential of 0.88 V (both vs. the reversible hydrogen electrode) in alkaline solution, outperforming the commercial Pt/C catalyst under identical conditions. Experimental results and theoretical simulations reveal that the quasi-octahedral O-2-FeNxPy species are the active sites of the FeNPC composite. These species modify the electronic configuration of Fe centers and weaken the adsorption of the OH* intermediate, thereby promoting the ORR process. Additionally, the FeNPC catalyst also displays a catalytic activity towards the anodic oxygen evolution reaction (OER), making it an active air electrode catalyst in rechargeable Zn-air batteries with a high peak power density of 233.2 mW cm(-2) and an excellent cycling stability at 3 mA cm(-2) for over 15 h.
《文生去看海》（Vincent will Meer）
(國立陽明大學, 2019-06-28)
黃柏威
;
陽明電子報編輯小組
【高雄市陽明大學校友會】豫劇皇后王海玲的分享與傳承
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
【藥理所～藥品產業創新領域碩士學分班】
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
【與大師的對話】美國密蘇里大學張恩慈教授
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
Extraction of eight-band k . p parameters from empirical pseudopotentials for GeSn
(2019-06-28)
Liu, Shao-Qi
;
Yen, Shun-Tung
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電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
We extract the parameters for the eight-band k . p model for Ge 1 - x Sn x ( x <= 0.15 ) from the calculation of the nonlocal empirical pseudopotential method with the modified virtual crystal approximation. The atomic pseudopotential form factors of Ge are improved such that the calculated Ge band structure has the commonly accepted bandgap and effective masses. The improved Ge parameters are used in proper interpolation to derive the parameters of GeSn for empirical pseudopotential calculation. The calculated band structures suggest that the Ge 1 - x Sn x alloys exhibit a transition between an indirect bandgap semiconductor and a direct one at Sn composition x c = 0.071. From the calculation, we extract the bandgap, the split-off energy, the interband momentum matrix element, and the effective masses of Ge 1 - x Sn x ( x <= 0.15) as functions of x. From these results, we further derive the parameters used in the eight-band k . p model. These parameters are well expressed in quadratic form. The k . p model with the extracted parameters can give an interband tunneling current in a pin diode that is consistent with the current calculated by the empirical pseudopotential method.
「達文西」驚喜現身陽明，畢業生搶先體驗先進微創手術系統
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
全球最先進的微創手術系統──達文西機械手臂手術系統，在畢業週驚喜現身陽明，讓陽明師生實地體驗！這是造價上億元的「達文西機...
Conformal Deposition of RuO2 on Cu via a Galvanic Cementation Reaction
(2019-06-28)
Lin, Chun
;
Chou, Shih-Cheng
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Tso, Kuang-Chih
;
Hsieh, Yi-Chieh
;
Chan, Ting-Shan
We develop a seedless wet chemical process to deposit uniform RuO2 on a Cu substrate. Our approach entails the synthesis of volatile RuO4 colloids in a pH 9 aqueous solution from the oxidation of RuCl52- by ClO-, followed by a galvanic cementation reaction in which the Cu undergoes a mild oxidation in conjunction with the reduction of RuO4 to produce a dense and conformal RuO2 thin film on the Cu surface. The nature for the chemical reactions and constituents involved are investigated by UV-Vis, X-ray absorption spectroscopy, and X-ray photoelectron spectroscopy. Both as-deposited and annealed RuO2 films are characterized by scanning electron microscope and X-ray diffractometer. The as-deposited RuO2 film, with a thickness of 199 nm, reveals an amorphous structure and after an Ar annealing, becomes crystalline in rutile phase. In between the RuO2 and Cu, there are presence of CuO from the displacement cementation reaction, and Cu2O from the parasitic Cu corrosion as expected from the Pourbaix diagram. These Cu oxides, with a thickness of 330 nm, provide sufficient adhesive bonding between RuO2 and Cu. (c) The Author(s) 2019. Published by ECS.
【暑假接駁車行駛路線時間表】
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
【補充工作新動力】七月份課程
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
盛夏同學會──校友回娘家
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
5月26日校友回娘家活動圓滿成功，當日有15個系所共同舉辦，紛紛精心設計多元活潑的型態及溫馨的氛圍，邀請800多位校友及眷屬返校...
【學餐暑假營業時間調整】
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
【陽明交大聯合學術演講】哈佛大學彭仲康教授
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
羽球賽熱鬧開打，醫工聯隊剽悍稱王
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
一年一度的羽球盛事──「校長盃」教職員工羽球聯誼賽，6月17日、18日熱鬧開打。各單位與系所羽球好手幾乎全員到齊，經過連續兩個...
重磅開講，柯市長、郭校長接力勉勵畢業學子
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
陽明6月15日舉辦107學年畢業典禮，邀請台北市長柯文哲致詞。柯文哲市長勉勵陽明今年1101位畢業生，未來能認真地過每一天，最重要...
公聽會廣納師生意見，計畫書延至9/18審議
(國立陽明大學, 2019-06-28)
陽明電子報編輯小組
本校6月份舉行三場「合校事宜公聽會」，就初步草擬的計畫書內容及合校進度，向全校師生說明，同時聽取各方意見，獲得廣泛熱烈的討...
Fabrication of Ag2O/TiO2 composites on nanographene platelets for the removal of organic pollutants: Influence of oxidants and inorganic anions
(2019-06-30)
Saleh, Rosari
;
Taufik, Ardiansyah
;
Prakoso, Suhendro Purbo
;
應用化學系
;
Department of Applied Chemistry
Ternary Ag2O/TiO2/nanographene platelet (Ag2O/TiO2/NGP) composites containing various amounts of NGP were synthesized using a microwave-assisted method and were used as catalysts for degradation of organic dyes in aqueous solution. The composites were characterized by various methods, and their photocatalytic performance was systematically investigated with respect to degradation of methylene blue. Compared with pure TiO2 and Ag2O nanoparticles as well as Ag2O/TiO2 composites, the Ag2O/TiO2/NGP composites exhibited superior photocatalytic performance in the UV and visible light range. The results also indicated that Ag2O/TiO2/NGP composites could be used as efficient broad-spectrum catalysts for the removal of several dye contaminants in aqueous solutions. The correlation between photocatalytic mechanism and physical properties of the catalysts was discussed. The effects of the addition of hydrogen peroxide (H2O2) and persulfate on MB degradation were also investigated. Photocatalytic efficiency was noticeable in the presence of both oxidizers. Because inorganic anions are common substances in natural water, their influence was also evaluated. They were found to inhibit the catalytic activity of Ag2O/TiO2/NGP composites. Their effectiveness in inhibiting photocatalytic degradation of MB was CO32- > NO3- > HPO4- > Cl- > SO42-.
Preparation of Cu(In,Ga)Se-2 nanoparticles via solvothermal method in conjunction with ball milling process and its applications to thin-film solar cells
(2019-06-30)
Chen, Yen-Chih
;
Lin, Yu-Pin
;
Hsieh, Tsung-Eong
;
Huang, Mei-Wen
;
材料科學與工程學系
Single-phase chalcopyrite CIGS particles with the sizes of 40-60 nm and the stoichiometry of Cu-26(.)01(In17.00Ga8.01)Se-48(.98) were synthesized by the solvothermal method. The CIGS precursor layers were prepared via the doctor-blade coating process utilizing the slurry containing CIGS nanoparticles and the CIGS layers were then formed by a selenization at 540 degrees C for various times in the Se vapor ambient. Microstructure and composition analyses indicated the CIGS layers are of the singe-phase chalcopyrite phase and the Cu-poor composition feature with stoichiometry close to the ideal ratio of 1:1:2. Moreover, the increase of selenization time benefited the coarsening of grain structure in CIGS layer as revealed by the scanning electron microscopy. Accordingly, the CIGS thin-film solar cell samples with the Mo/CIGS/ CdS/i-ZnO/AZO/Ag structure were prepared and their performance were evaluated. Under the AM1.5 illumination condition, the best PV performance with open-circuit voltage of 0.49 V, short-circuit current density of 29.46 mA/cm(2), fill factor of 54% and conversion efficiency of 7.75% was accomplished in the thin-film solar cell sample containing CIGS light absorption layer prepared by the 540 degrees C-selenization for 15 min. (C) 2019 Elsevier B.V. All rights reserved.