Browsing by Issue Date, starting with "2019-05-14"

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【健康性教育性平月系列活動】戀愛學分修了沒？
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
【5/31 與校長有約】
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
Design of novel TiO2-SiO2 core-shell helical nanostructured anti-reflective coatings on Cu(In,Ga)Se-2 solar cells with enhanced power conversion efficiency
(2019-05-14)
Chen, Chia-Wei
;
Tsai, Hung-Wei
;
Wang, Yi-Chung
;
Su, Teng-Yu
;
Yang, Chen-Hua
Introducing an anti-reflective coating (ARC) is the last step of fabricating Cu(In,Ga)Se-2 solar cells with enhanced photo-generated current by reducing the reflectance of visible light. The use of nanostructures in ARC has been intensively investigated because this can prolong the optical path length by a scattering effect or by the formation of a refractive index gradient. Herein, we proposed the use of TiO2 helical nanostructures using glancing angle deposition (GLAD), and then synthesized SiO2 surrounding the helical nanostructures to further decrease the reflectance by producing a refractive index gradient. The optimized values of TiO2 and SiO2 thicknesses are 150 nm and 3 nm determined by the finite-difference time-domain (FDTD) simulation on Cu(In,Ga)Se-2 solar cells. The suppression of reflectance led to enhanced light absorption across a broad wavelength range, and boosted the J(SC) from 20.66 to 22.51 mA cm(-2), resulting in improved power conversion efficiency (PCE) from 6.32 to 7.00% after applying the TiO2-SiO2 core-shell nanostructures as the ARC. This 10.75% PCE enhancement suggests that the novel TiO2-SiO2 core-shell nanostructures have great potential as ARC for Cu(In,Ga)Se-2 solar cells, and it would be beneficial for development in the photovoltaic field in both research and applications.
第一屆藍花楹文學獎、攝影獎，得獎名單揭曉
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
屬於陽明人的「藍花楹文學獎」、「藍花楹攝影獎」，是由藝文中心首次舉辦的校級比賽。過去各個大專院校皆有校級的文學比賽，以此...
First-principles study on sum-frequency generation spectroscopy of methanol adsorbed on TiO2(110) surface: Effects of substrate and molecular coverages
(2019-05-14)
Shen, Zhitao
;
Lin, Chih-Kai
;
Zhu, Chaoyuan
;
Lin, Sheng Hsien
;
交大名義發表
In this work, starting from the general theory of sum-frequency generation (SFG), we proposed a computational strategy utilizing density functional theory with periodic boundary conditions to simulate the vibrational SFG of molecules/solid surface adsorption system. The method has been applied to the CH3OH/TiO2(110) system successfully. Compared with the isolated molecule model, our theoretical calculations showed that the TiO2 substrate can significantly alter the second-order susceptibilities of a methanol molecule which is directly related to the SFG intensity. In addition, the SFG spectra have obvious changes while the methanol coverage increases, especially for the OH vibration peaks. Our theoretical spectra agree reasonably well with experimental measurements at 1 ML coverage, and an interesting peak which is absent in the theoretical spectra is tentatively assigned to some CH3 stretch vibration of methanol adsorbed on the oxygen vacancy of TiO2.
《攻敵必救》（Miss Sloane）
(國立陽明大學, 2019-05-14)
黃柏威
;
陽明電子報編輯小組
Microwave growth and tunable photoluminescence of nitrogen-doped graphene and carbon nitride quantum dots
(2019-05-14)
Gu, Siyong
;
Hsieh, Chien-Te
;
Gandomi, Yasser Ashraf
;
Chang, Jeng-Kuei
;
Li, Ju
Tunable photoluminescent nitrogen-doped graphene and graphitic carbon nitride (g-C3N4) quantum dots are synthesized via a facile solid-phase microwave-assisted (SPMA) technique utilizing the pyrolysis of citric acid and urea precursors. The atomic ratio, surface functionalization, and atomic structure of as-prepared quantum dots strongly depend on the ratio of citric acid to urea. The quantum dots have a homogeneous particle size and tend to form a circle and/or ellipse shape to minimize the edge free energy. The atomic ratio of surface nitrogen to carbon (N/C) in the quantum dots can reach as high as 1.74, among the highest values reported in the literature. The SPMA technique is capable of producing high-quality quantum dots with photoluminescence (PL) emission at various wavelengths on a pilot scale. The atomic structures of the N-doped graphene and g-C3N4 quantum dots are explored using molecular dynamics simulations. Increasing the urea concentration increases the tendency of in-plane N (i.e., quaternary N) substitution over that of other amino functionalizations, such as pyrrolic and pyridinic N. The PL emission can be precisely tuned via a one-step SPMA method by adjusting the precursor composition. A high quantum yield of 38.7% is achieved with N-doped graphene quantum dots, indicating the substantial influence of the N- and O-rich edge groups on the enhancement of PL efficiency. A bandgap structure is proposed to describe the interstate (*-) transition of quantum dots. This work introduces a novel approach for engineering the chemical composition and atomic structure of graphene and g-C3N4 quantum dots, facilitating their research and applications in optical, electronic, and biomedical devices.
【勇往職前‧創心未來講座】執業前必知「藥品安全監視」與「醫療救濟關懷制度」
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
【衛福專題演講】
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
生醫領航方舟講座，「益安」分享創新醫材成功商品化心法
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
在益安生醫負責集團策略、技術授權及企業合作，擁有超過二十年產品開發與技術授權經驗的鄭淑玲策略長，於4月11日接受陽明產學營運...
第一屆藍花楹攝影與散文得獎作品
(國立陽明大學, 2019-05-14)
朱軒立
;
陽明電子報編輯小組
第一屆藍花楹攝影與散文得獎作品
44精彩，陽明校慶邀您同歡
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
欣逢5月15日校慶，在這年度的最高潮──校慶月，有一整個月歡樂精彩的活動！有熱血的牙刷盃路跑大賽、西瓜盃暨拔河大賽，還有熱力...
【完美求職系列講座】勞動權益面面觀
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
【補充工作新動力】生活法律～您不能不知道的權益
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
Genome mining and biosynthesis of kitacinnamycins as a STING activator
(2019-05-14)
Shi, Jing
;
Liu, Cheng Li
;
Zhang, Bo
;
Guo, Wen Jie
;
Zhu, Jiapeng
Cinnamoyl-containing nonribosomal peptides (CCNPs) are a small group of secondary metabolites with potent biological activities produced by actinobacteria. Two remarkable features in the biosynthesis of CCNPs include the nonribosomal peptide synthases (NRPSs) for assembly of the depsipeptide backbone and the type II polyketide synthases (PKSs) for N-terminal cinnamoyl moiety construction. Here, we present a genome mining approach targeting both NRPS and type II PKS for discovery of new CCNPs, which led to the identification of 51 putative CCNP gene clusters from public bacterial genome databases. After strain prioritization, a novel class of CCNP-type glycopeptides named kitacinnamycins, one of which showing potent activation ability towards the stimulator of interferon genes (STING) protein, was identified. Bioinformatic, genetic and biochemical analysis revealed the use of the NRPS assembly line to form the macrocyclic peptide backbone, followed by a P450 monooxygenase to generate terminal oxidized groups. A glycosyltransferase with relatively broad substrate specificity transfers sugars to the newly generated OH/COOH group. The protein crystallographic study further provided structural insights into this glycosylation. Our results not only demonstrated the feasibility of genome mining and strain prioritization for the discovery of new bioactive natural products but also disclosed the biosynthetic pathway for kitacinnamycins.
【反毒宣導月活動】系列活動
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
【科技部業務說明座談會】
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
【早安神農坡】神農坡與陽明2.0的距離
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
篩選出有效抑制CAR-T副作用藥物，黃奇英老師團隊獲「國璽獎」肯定
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組
由生物藥學研究所黃奇英老師指導的醫技系博士班蔡侑珍同學、生藥所越南實習生Doan Hien Ly（尹嫻璃），從實驗室的篩藥平台中篩選...
【IACUC相關規範和動物實驗申請說明會】
(國立陽明大學, 2019-05-14)
陽明電子報編輯小組