Browsing by Issue Date, starting with "2015-12-23"

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Imaging magnetic and ferroelectric domains and interfacial spins in magnetoelectric La0.7Sr0.3MnO3/PbZr0.2Ti0.8O3 heterostructures
(2015-12-23)
Huang, C-Y
;
Zhou, J.
;
Tra, V. T.
;
White, R.
;
Trappen, R.
Strong magnetoelectric coupling can occur at the interface between ferromagnetic and ferroelectric films. Similar to work on interfacial exchange bias, photoemission electron microscopy was utilized to image both magnetic and ferroelectric domains and the resulting interfacial Ti spin in the same locations of La0.7Sr0.3MnO3/PbZr0.2Ti0.8O3 heterostructures. Multiple image analysis techniques, which could be applicable for a variety of fields needing quantitative data on image switching, confirm both improved magnetic switching and an increased population of interfacial spins with increased thickness of the ultrathin La0.7Sr0.3MnO3 layer. The perpendicular orientation of the interfacial spins is also discussed. This work suggests a magnetoelectric dead layer, with reduced interfacial magnetoelectricity when thin magnetic films are present.
Imaging magnetic and ferroelectric domains and interfacial spins in magnetoelectric La0.7Sr0.3MnO3/PbZr0.2Ti0.8O3 heterostructures
(2015-12-23)
Huang, C-Y
;
Zhou, J.
;
Tra, V. T.
;
White, R.
;
Trappen, R.
Strong magnetoelectric coupling can occur at the interface between ferromagnetic and ferroelectric films. Similar to work on interfacial exchange bias, photoemission electron microscopy was utilized to image both magnetic and ferroelectric domains and the resulting interfacial Ti spin in the same locations of La0.7Sr0.3MnO3/PbZr0.2Ti0.8O3 heterostructures. Multiple image analysis techniques, which could be applicable for a variety of fields needing quantitative data on image switching, confirm both improved magnetic switching and an increased population of interfacial spins with increased thickness of the ultrathin La0.7Sr0.3MnO3 layer. The perpendicular orientation of the interfacial spins is also discussed. This work suggests a magnetoelectric dead layer, with reduced interfacial magnetoelectricity when thin magnetic films are present.
原住民族自治　立法行不行
(2015-12-27)
王聖安
;
Department of Communication and Technology
;
傳播與科技學系
《原住民族自治推動條例》充滿爭議，如何面對原住民族自治成為選舉要點。
研究生了沒？
(2015-12-27)
趙廣絜
;
Department of Communication and Technology
;
傳播與科技學系
畢業後要不要念研究所是許多大學生心中的難題。
總編輯的話
(2015-12-27)
謝萱穎
;
Department of Communication and Technology
;
傳播與科技學系
本期為喀報兩百三十二期，共有十二篇稿件。這期類目以人物為主，佐以社會議題、評論類、文化現象等，雖然篇目較少，但內容豐富多元。側欄廣告以二〇一六跨年活動為主題，和大家一同倒數新的一年。
圖畫記錄旅行　插畫家壘摳
(2015-12-27)
林謙耘
;
Department of Communication and Technology
;
傳播與科技學系
插畫家壘摳，從插畫日記到個人接案，再到工作室共同創作，她堅信只要腳踏實地就會成功。
用漫畫說故事　正港奇片
(2015-12-27)
李宗諺
;
Department of Communication and Technology
;
傳播與科技學系
漫畫家正港奇片，擁有豐富的靈感與想像力，讓讀者永遠猜不到漫畫的下一秒會發生什麼事。
孤獨　跨世紀的體悟
(2015-12-27)
麻愷晅
;
Department of Communication and Technology
;
傳播與科技學系
《孤獨的反義詞》與《十一種孤獨》兩書的創作雖橫跨半個世紀，傳達的思想卻相去不遠，皆點出孤獨的無可避免。
由愛出發　病人自主
(2015-12-27)
翁世樺
;
Department of Communication and Technology
;
傳播與科技學系
討論安寧療護在臺發展現況，以及病人自主權的宣導與爭取。
無敵破壞王　經典再創新
(2015-12-27)
黃吏玄
;
Department of Communication and Technology
;
傳播與科技學系
無敵破壞王，做為一經典與創新的融合，帶來驚喜的呈現。
孫家隆　旅日的台灣原畫師
(2015-12-27)
吳昀蒨
;
Department of Communication and Technology
;
傳播與科技學系
孫家隆之前是在日本工作的原畫師，現在回到台灣，希望能帶起台灣動畫業發展。
咖啡因　難以拒絕的誘惑
(2015-12-27)
許人文
;
Department of Communication and Technology
;
傳播與科技學系
討論臺灣咖啡文化，及其背後隱藏的健康危機。
獻給台灣的情書　愛琳娜
(2015-12-27)
羅宛君
;
Department of Communication and Technology
;
傳播與科技學系
電影【愛琳娜】以台語諧音「愛人哪」命名之，這部寫給台灣的情書。
堅持自我風格　梨寶
(2015-12-27)
蕭泳
;
Department of Communication and Technology
;
傳播與科技學系
介紹女攝影師梨寶。
競技啦啦全國賽
(2015-12-27)
馮鈞鈺
;
吳維倫
;
Department of Communication and Technology
;
傳播與科技學系
二〇一五年全國啦啦隊錦標賽有來自全台各地好手參賽，場面十分精采。
Amifostine-conjugated pH-sensitive calcium phosphate-covered magnetic-amphiphilic gelatin nanoparticles for controlled intracellular dual drug release for dual-targeting in HER-2-overexpressing breast cancer
(2015-12-28)
Li, Wei-Ming
;
Chiang, Chih-Sheng
;
Huang, Wei-Chen
;
Su, Chia-Wei
;
Chiang, Min-Yu
We developed a surfactant-free method utilizing amifostine to stably link a targeting ligand (Herceptin) to amphiphilic gelatin (AG)-iron oxide@calcium phosphate (CaP) nanoparticles with hydrophobic curcumin (CUR) and hydrophilic doxorubicin (DOX) encapsulated in the AG core and CaP shell (AGIO@CaP-CD), respectively. This multi-functional nanoparticle system has a pH-sensitive CaP shell and degradable amphiphilic gelatin (AG) core, which enables controllable sequential release of the two drugs. The dual-targeting system of AGIO@CaP-CD (HER-AGIO@CaP-CD) with a bioligand and magnetic targeting resulted in significantly elevated cellular uptake in HER2-overexpressing SKBr3 cells and more efficacious therapy than delivery of targeting ligand alone due to the synergistic cell multi-drug resistance/apoptosis-inducing effect of the CUR and DOX combination. This nanoparticle combined with Herceptin and iron oxide nanoparticles not only provided a dual-targeting functionality, but also encapsulated CUR and DOX as a dual-drug delivery system for the combination therapy. This study further demonstrated that the therapeutic efficacy of this dual-targeting co-delivery system can be improved by modifying the application duration of magnetic targeting, which makes this combination therapy system a powerful new tool for in vitro/in vivo cancer therapy, especially for HER2-positive cancers. (C) 2015 Elsevier B.V. All rights reserved.
Confinement-deconfinement phase transition for heavy quarks in a soft wall holographic QCD model
(2015-12-28)
Yang, Yi
;
Yuan, Pei-Hung
;
電子物理學系
;
物理研究所
;
Department of Electrophysics
We study confinement-deconfinement phase transition for heavy quarks in a soft wall holographic QCD model. We consider a black hole background in an Einstein-Maxwell- scalar system and add probe open strings to the background. Combining the various configurations of the open strings and the phase structure of the black hole background itself, we obtain the confinement-deconfinement phase diagram for heavy quarks in the holographic QCD model.
4-Gbit/s visible light communication link based on 16-QAM OFDM transmission over remote phosphor-film converted white light by using blue laser diode
(2015-12-28)
Retamal, Jose Ramon Duran
;
Oubei, Hassan Makine
;
Janjua, Bilal
;
Chi, Yu-Chieh
;
Wang, Huai-Yung
Visible Light Communication (VLC) as a new technology for ultrahigh-speed communication is still limited when using slow modulation light-emitting diode (LED). Alternatively, we present a 4-Gbit/s VLC system using coherent blue-laser diode (LD) via 16-quadrature amplitude modulation orthogonal frequency division multiplexing. By changing the composition and the optical-configuration of a remote phosphor-film the generated white light is tuned from cool day to neutral, and the bit error rate is optimized from 1.9 x 10(-2) to 2.8 x 10(-5) in a blue filter-free link due to enhanced blue light transmission in forward direction. Briefly, blue-LD is an alternative to LED for generating white light and boosting the data rate of VLC. (C) 2015 Optical Society of America
4-Gbit/s visible light communication link based on 16-QAM OFDM transmission over remote phosphor-film converted white light by using blue laser diode
(2015-12-28)
Retamal, Jose Ramon Duran
;
Oubei, Hassan Makine
;
Janjua, Bilal
;
Chi, Yu-Chieh
;
Wang, Huai-Yung
Visible Light Communication (VLC) as a new technology for ultrahigh-speed communication is still limited when using slow modulation light-emitting diode (LED). Alternatively, we present a 4-Gbit/s VLC system using coherent blue-laser diode (LD) via 16-quadrature amplitude modulation orthogonal frequency division multiplexing. By changing the composition and the optical-configuration of a remote phosphor-film the generated white light is tuned from cool day to neutral, and the bit error rate is optimized from 1.9 x 10(-2) to 2.8 x 10(-5) in a blue filter-free link due to enhanced blue light transmission in forward direction. Briefly, blue-LD is an alternative to LED for generating white light and boosting the data rate of VLC. (C) 2015 Optical Society of America
Effects of strong laser fields on hadronic helium atoms
(2015-12-30)
Lee, Han-Chieh
;
Jiang, Tsin-Fu
;
物理研究所
;
Institute of Physics
The metastable hadronic helium atoms in microseconds lifetime are available in laboratory, and two-photon spectroscopy was reported recently. This exotic helium atom has an electron in the ground state and a negative hadron rotating around the helium nucleus. We theoretically study the excitation on hadronic helium by femtosecond pulse and elucidate the influence of moleculelike structure and rotation behavior on the photoelectron spectra and high-order harmonic generation. Because of the moleculelike structure, the electronic ground state consists of several angular orbitals. These angular orbitals can enhance photoelectron spectra at high energies, and also influence the harmonic generation spectra considerably. In particular, the harmonic spectra can occur at even harmonic orders because of the transition between these angular orbitals and continuum states. On the other side, the rotation behavior of hadron can induce a frequency shift in the harmonic spectra. The magnitude of the frequency shift depends on the orbiting speed of the hadron, which is considerable because the rotation period is in a few femtoseconds, a time scale that is comparable to that of infrared laser and is feasible in current laser experiments.