Browsing by Issue Date, starting with "2019-06-14"

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傑出校友連加恩勉勵學弟妹：台灣需要像海盜的人才
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
即將進入六月畢業季，在非洲行醫多年的連加恩校友，5月28日應陽明國際衛生學程邀請回到台灣。在對全校的演講中，他勉勵學生要當一...
【孟德爾之夢：遺傳的百年探索】展覽
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
【2019醫藥發展暨新知研討會】
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
【科創講堂 Tech-Talk FORUM 2019】智慧醫療
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
首度參加龍舟競賽，陽明一戰成名
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
陽明今年首度組隊參加「北投洲美龍舟競渡」，便締造出2分14秒73的佳績，在28支隊伍中名列第四。初次成軍就身手不凡，擊敗眾多隊伍...
Ex-situ soft X-ray absorption spectroscopic investigation of NiCo2O4 annealed in different gases for hydrogen generation by electrolysis of urea
(2019-06-14)
Chang, Han-Wei
;
Dong, Chung-Li
;
Lu, Ying-Rui
;
Huang, Yu-Cheng
;
Chen, Chi-Liang
Electrochemical and ex-situ X-ray absorption spectroscopic (XAS) measurements of NiCo2O4 that have been annealed in different gases (Ar and air) were made to evaluate the efficiency of its electrocatalysis of hydrogen generation by the electrolysis of urea. The electrochemical and XAS measurements demonstrated that NCO-Ar contain significant amounts of Co2+ in octahedral coordination was more favorable than NCO-air for urea electrolysis owing to the effective exposure of electrochemical active sites to participate in the Faradic redox reaction. Further insight into the electrocatalytic mechanism of NiCo2O4-based materials during urea electrolysis was obtained using ex-situ soft XAS. The results of ex-situ soft XAS revealed that the variation of the octahedral and tetrahedral coordinations of Co2+ in NCO-Ar and NCO-air importantly contributes to electrocatalytic behavior. NCO-Ar exhibits excellent electrocatalytic activity towards the Co redox couples in a repetitive cycling process owing to the creation of highly efficient active sites (octahedral Co2+). This study presents importantly x-ray spectroscopic determination of the change in electronic structure of catalyst for hydrogen production. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
《異星入境》（Arrival）
(國立陽明大學, 2019-06-14)
黃柏威
;
陽明電子報編輯小組
Ni and Pd N-confused porphyrin complexes as catalysts for the synthesis of cyclic carbonates from epoxides and CO2
(2019-06-14)
dela Cruz, Jay-ar B.
;
Ruamps, Mirko
;
Arco, Susan
;
Hung, Chen-Hsiung
;
應用化學系
We have demonstrated the design of a novel bifunctional catalyst that is based on an N-confused tetraphenylporphyrin (NCTPP) motif for the cycloaddition of an epoxide to carbon dioxide via cooperative activation of the epoxide through a Pd(II) or Ni(II) metal center and a peripheral benzoate moiety with percent conversions of up to 99% and TON = 7000.
【讀風──張曉風特展】
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
【解剖所專題演講】
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
【補充工作新動力】曾歲月幾何？馬祖列島的前世與今生
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
感恩有您，陽明餐會感謝「璞玉計畫」捐助者
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
為讓多元人才有機會接受生醫專業訓練，本校從2015年開辦璞玉組招生，至今共有38名弱勢學生透過這項招生管道進入陽明就讀。「璞玉...
GLORIA 亞東醫院輔導說明會，協助臨床研發創新與商品化
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
看準醫療機構所蘊涵的深厚臨床研發能量，科技部產學司委託陽明大學執行的國際產學聯盟計畫（GLORIA），於3月6日在亞東醫院舉辦補...
另一種光影──藍花楹文學獎與攝影獎雙料冠軍訪談
(國立陽明大學, 2019-06-14)
龔郁雯
;
陽明電子報編輯小組
藍花楹文學獎與攝影獎雙料冠軍訪談。
友華生技再捐120萬，助越南生至本校進修學習
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
本校生藥所積極辦理越南學生交流與招生，取得不錯成效，今年再獲友華生技醫藥股份有限公司捐助新台幣120萬元，資助越南學生來台交...
【生醫產業創新創業人才培育課程】
(國立陽明大學, 2019-06-14)
陽明電子報編輯小組
Exploring the formation of thermally detuned transverse patterns in a broad-area square VCSEL
(2019-06-15)
Tuan, P. H.
;
Yu, Y. T.
;
Huang, K. F.
;
Chen, Y. F.
;
電子物理學系
The formation of thermally detuned transverse patterns of a broad-area square-aperture vertical-cavity surface-emitting laser (VCSEL) via cryogenic cooling is explored. It is found that the transverse wave vector gradually rotates from the horizontal or vertical direction to the diagonal direction of the square boundary as the transverse mode order increases. A model based on the quantum billiards with a finite potential well is developed to emulate the transition behavior of lasing modes. Combining the effective modal gain analysis with the response wave function of driven finite potential billiards, all experimental lasing patterns under different operation temperatures are well recon- structed. (C) 2019 Optical Society of America
Analytical Modelling of Software and Hardware Switches with Internal Buffer in Software-Defined Networks
(2019-06-15)
Singh, Deepak
;
Ng, Bryan
;
Lai, Yuan-Cheng
;
Lin, Ying-Dar
;
Seah, Winston K. G.
Open Flow supports internal buffering of data packets in Software-Defined Networking (SDN) switch whereby a fraction of data packet header is sent to the controller instead of an entire data packet. This internal buffering increases the robustness and the utilization of the link between SDN switches and the controller by absorbing temporary burst of packets which may overwhelm the controller. Existing queuing models for an SDN have focused on the switches that immediately sends packets to the controller for decisioning, with no existing models investigating the impact of the internal buffer in SDN software and hardware switches. In this paper, we propose a unified queueing model to characterise the performance of SDN software and hardware switches with the internal buffer. This unified queueing model is an analytical tool for network engineers to predict a delay and loss during SDN deployments in delay and loss sensitive environments. Our results show that a hardware switch achieves up to 80% lower average packet transfer delay and 99% lower packet loss rate at the cost of requiring up to 50% more queue capacity than a software switch. The proposed models are validated with a discrete event simulation, where the error between 0.6% and 2.8% was observed for both average packet transfer delay and average packet loss rate. Moreover, a hardware switch outperforms a software switch with increasing number of hosts per switch suggesting that a hardware switch has better scalability. We use the insights from the model to develop guidelines that help network engineers decide between a software and hardware switch in their SDN deployments.
Insights into the rapid elimination of antibiotics from aqueous media by tunable C3N4 photocatalysts: Effects of dopant amount, co-existing ions and reactive oxygen species
(2019-06-15)
de Luna, Mark Daniel G.
;
Paragas, Larah Kriselle B.
;
Doong, Ruey-An
;
環境工程研究所
;
Institute of Environmental Engineering
Conventional photocatalytic nanomaterials are not environmentally sustainable since these are usually produced from scarce mineral and metal precursors. Moreover, high pollutant removal efficiencies by conventional photocatalysts are only attained after several hours of reaction with light. In this study, novel visible light-active photocatalysts were synthesized from environment-friendly carbon precursors and applied for the rapid degradation of sulfamethoxazole (SMX) in aqueous solutions. The photocatalysts were prepared via the co-pyrolysis of urea with varying doping temperature and dopant amount. These variations played a vital role in improving the performance of the photocatalysts and resulted in up to >99% SMX removal within 45 min of visible light irradiation. Characterization of the photocatalysts showed that potassium and iodine dopants were responsible in the red shift and broadening of the light absorption spectrum to the visible region. In addition, the band gap energy narrowed by 0.23 eV resulting in faster charge transfer but slower recombination of the photo-generated electron and hole pairs. Effects of varying concentrations of inorganic salts (NO3-, SO42-, Cl-, PO43-) on SMX removal were also examined. Lastly, the mechanism of SMX photodegradation was elucidated. (C) 2019 Elsevier B.V. All rights reserved.
On identification of agonistic interaction: Hepatitis B and C interaction on hepatocellular carcinoma
(2019-06-15)
Lin, Sheng-Hsuan
;
Huang, Yen-Tsung
;
Yang, Hwai-I
;
統計學研究所
;
Institute of Statistics
Agonistic interaction is one of the most important types of mechanistic interaction, which is difficult to be distinguished from synergistic interaction by empirical data. In this study, we propose four approaches that suffice to identify and estimate the agonistic interaction: (1) to make a strong assumption that synergism does not exist; (2) to exploit information from a third factor by assuming that this factor is a necessary component for the background condition of synergistic interaction but is not involved in other mechanisms; (3) to consider a third factor necessary for the background condition of agonistic interaction but not involved in other mechanisms; and (4) similar to (3) but to allow flexibility that the third factor may have a main effect on the outcome and/or a synergistic effect with the two risk factors of interest. We applied the proposed methods to quantify the agonism of Hepatitis B and C viruses (HBV and HCV) infections on liver cancer using a Taiwanese cohort study (n = 23 820; HBV carrier n = 4149 (17.44%), HCV carrier n = 1313 (5.52%)). The result demonstrated that agonistic interaction is more dominant compared with synergistic interaction, which explains the findings that the dual infected patients do not have a significantly higher risk of liver cancer than those with single infection. By exploiting an additional risk factor that satisfies certain assumptions, these approaches potentially fill the gap between mechanistic and causal interactions, contributing the comprehensive understanding of causal mechanisms.