Browsing by Issue Date, starting with "2014-10-17"
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Item type:Item, Vibrational effects on UV/Vis laser-driven pi-electron ring currents in aromatic ring molecules(2014-10-17) ;Mineo, H. ;Lin, S. H. ;Fujimura, Y. ;應用化學系分子科學碩博班Institute of Molecular scienceWe present the results of a theoretical study of vibrational effects on UV/Vis laser-driven p-electron ring currents in aromatic ring molecules. We consider vibrational effects on both coherent and non-coherent (single quantum state) ring currents. The coherent ring current originates from an excitation of a pair of quasi-degenerate electronic states by an ultrashort linearly polarized UV/Vis laser pulse, while the non-coherent ring current originates from by an excitation of a degenerated electronic state of an aromatic ring molecule with high symmetry by a circularly polarized electric field of a UV/Vis laser pulse. The magnitude of a generated ring current can be expressed as an average of those of the bond currents for both the coherent and non-coherent cases. We derive an analytical expression for the magnitude of the bond currents in the adiabatic approximation. Using the expression, we performed calculations of a non-coherent ring current generated in the optically allowed excited state (E-1(1U)) of benzene and the time evolution of coherent ring current of (P)-2,2-biphenol. Vibrational effects on the non-coherent ring current of benzene were found to be negligibly small. We paid particular attention to the vibrational effects induced by the torsion mode on time evolution of the coherent ring current along the bond bridging between the two aromatic rings of (P)-2,2-biphenol. By comparing the time evolution of the coherent ring current with that in the frozen-nuclear approximation, we found that inclusion of the low-frequency torsion mode brings about modulations in the beating in the ring current. The modulations in the time evolution of the coherent ring current were brought about by contribution of several pairs of the coherently excited vibronic states. Coherent vibronic ring currents generated from pairs of the coherently excited vibronic states interfere each other. The existence of the pairs originates from relatively large potential displacement of the torsion mode between the two excited states for (P)-2,2-biphenol. Temperature effects on the time-dependent coherent ring current were also investigated. (C) 2014 Elsevier B.V. All rights reserved.Item type:Item, 實踐知識力 自造全新世代(2014-10-19) ;洪雯倩 ;劉敏慈 ;Department of Communication and Technology傳播與科技學系不只學習知識,更要利用知識。台灣科學館與【自造世代】製作團隊將maker的成功秘訣告訴你。Item type:Item, 情牽三十年 不變的羈絆(2014-10-19) ;劉雨婕 ;Department of Communication and Technology傳播與科技學系《最好的妳》描寫一對情同姊妹的好朋友,兩人情誼維繫三十年之久,一句「我需要妳」,她們便能形影不離。Item type:Item, 夢醒 愛情是否仍美麗(2014-10-19) ;李恬芳 ;Department of Communication and Technology傳播與科技學系許多人心中都有一顆愛情的種子,總是期待著有朝一日,它能開出一朵美麗的玫瑰。Item type:Item, 溫泉盛事 日味相撲踩街(2014-10-19) ;陳珮容 ;Department of Communication and Technology傳播與科技學系台北溫泉季在新北投登場,現場有神轎踩街、日式搗麻糬等活動,今年首度與日本兒童相撲交流,吸引遊客目光。Item type:Item, 學而實習之 幕後的掌舵者(2014-10-19) ;顏晟宇 ;Department of Communication and Technology傳播與科技學系臺灣學生實習日趨盛行,這是企業回饋社會的管道。張孝泓女士便是企業社會責任的實踐者,對她來說,這是她應盡的使命與責任。Item type:Item, 食物模型 逼真如「實」物(2014-10-19) ;簡品心 ;Department of Communication and Technology傳播與科技學系琳瑯滿目的食品模型,其背後的製作過程十分講求,挑戰食品模型師的耐心與天賦。Item type:Item, 美美地活著 美美的人生(2014-10-19) ;黃詩涵 ;Department of Communication and Technology傳播與科技學系作者H.H先生透過《美美的逆襲》一書來反諷網路與社會現象,並藉由美美這個角色帶給現代人更多歡笑與自信。Item type:Item, 用生命賺錢 鷹架上的人(2014-10-19) ;許鴻財 ;Department of Communication and Technology傳播與科技學系走在鷹架上的人,就是在建築工地工作的人。他們用生命來賺錢,其中還有女性工作者。Item type:Item, 溫柔針砭 饒舌唱入心坎(2014-10-19) ;陳致穎 ;Department of Communication and Technology傳播與科技學系饒舌教父大支,從批判時事到傳達正面能量的轉變,讓歌曲內容小至關懷動物,大到生命價值觀。Item type:Item, 古蹟文創市集 週年同樂(2014-10-19) ;杜以翔 ;鄭宇茹 ;Department of Communication and Technology傳播與科技學系十月十八日在新瓦屋文創市集有週年慶擺攤活動,其中不但有魔術表演還有黏土DIY讓親子一起同樂。Item type:Item, 單飛樂手 搖滾音樂新活力(2014-10-19) ;賴坤猷 ;Department of Communication and Technology傳播與科技學系著名吉他手史萊許離開槍與玫瑰樂團後,單飛出輯找到新樂風、新方向。透過吉他,讓搖滾魂繼續燃燒。Item type:Item, 選擇一場旅行 改變人生觀(2014-10-19) ;陳亞柔 ;Department of Communication and Technology傳播與科技學系這是關於旅行人的故事。一個被旅行改變,並將親眼所見、親耳所聞紀錄下來的人。Item type:Item, 托斯卡尼 照亮生命態度(2014-10-19) ;查爾灣.米吉 ;Department of Communication and Technology傳播與科技學系當人生遭遇挫折不知道如何走下去時,來到【托斯卡尼的艷陽下】,讓它教導人生哲理,學習待人處事,面對困難。Item type:Item, 漂浪人生 青春譜歌(2014-10-19) ;包金 ;Department of Communication and Technology傳播與科技學系浪蕩的青春歌詠,被世俗枷鎖的自由,漂泊人生幾盞微弱的燭火相遇,點燃那希望的花,在無奈社會默默絢爛。Item type:Item, 動吃動吃 萬人路跑嚐甜點(2014-10-19) ;王彥琪 ;陳怡均 ;Department of Communication and Technology傳播與科技學系甜蜜路跑在台北圓山花博熱鬧登場,吸引近萬人一起品嚐甜點、健康開跑。Item type:Item, Item type:Item, 寶萊塢音樂 電影討喜配角(2014-10-19) ;黃苡齊 ;Department of Communication and Technology傳播與科技學系寶萊塢電影中的音樂如同襯托主角的「討喜配角」,在電影中總是驚喜的出現,又適度的將場面還給主角,讓劇情繼續發展。Item type:Item, 爵盛時代 Let's Party!(2014-10-19) ;謝宜寧 ;黃美恩 ;Department of Communication and Technology傳播與科技學系二○一四台中爵士音樂節──爵盛時代在十月十八日在台中市民廣場熱鬧展開,為民眾帶來獨特的爵士音樂饗宴。Item type:Item, 新世代電子民謠獨特女聲(2014-10-19) ;林霈楨 ;Department of Communication and Technology傳播與科技學系白安在《接下來是什麼》專輯裡,再度展現強烈音樂特色,奠定自己在流行樂壇中的個人風格。