Browsing by Issue Date, starting with "2016-12-04"

Now showing 1 - 20 of 15829

謝庭菡　光影與恐懼的交錯
(2016-12-04)
李瑞彥
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Department of Communication and Technology
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傳播與科技學系
專訪國片「屍憶」導演謝庭菡，她的人生故事，以及她的電影。
當果貿社區　沒落
(2016-12-04)
王羽廷
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Department of Communication and Technology
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傳播與科技學系
左營眷村區旁的黃色圓形大樓，當年的國民住宅，承載歷史的故事。
忠信市場　老靈魂與新生命
(2016-12-04)
朱倫君
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Department of Communication and Technology
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傳播與科技學系
國立台灣美術館周邊是近十年台中新興發展的城區，象徵年輕的元素、藝術空間蓬勃聚集，而一個風華逝去的老市場忠信市場就棲身於此。老靈魂遇上年輕生命，跨世代的交流十分耐人尋味。
GQ夜博館　成年遊樂場
(2016-12-04)
彭書耘
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Department of Communication and Technology
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傳播與科技學系
GQ夜博館於11月19日在華山園區開幕，12月四日結束展期，運用各式元素打造一座夜晚才營業的成人樂園。
Math under the Mask
(2016-12-04)
凃易暄
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Department of Communication and Technology
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傳播與科技學系
以英文圖像詩來描述對數學的不理解與害怕
社群行銷　交給萬能小編
(2016-12-04)
何書馨
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Department of Communication and Technology
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傳播與科技學系
當小編成為一種職業，社群行銷便能成為專業。本文將深入探討小編的工作，以及現有狀況的改善空間。
天橋
(2016-12-04)
黃佳俐
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Department of Communication and Technology
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傳播與科技學系
記錄生活中零碎卻又深刻的事。
李慶雅　不一樣的籃球路
(2016-12-04)
張巧宜
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Department of Communication and Technology
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傳播與科技學系
籃球路上前途無量的李慶雅，沒有選擇踏入職業籃球界。以體育保送生的資格進入臺灣大學，積極面對不熟悉的挑戰。
漫步大稻埕　重返風華年代
(2016-12-04)
林芃蕙
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Department of Communication and Technology
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傳播與科技學系
走訪大稻埕，身處古色古香的街道，遙想昔日迪化街的繁華，細細品味這個城市的故事。
總編輯的話
(2016-12-04)
曾婕茵
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Department of Communication and Technology
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傳播與科技學系
喀報第254期以「人」與「生活」為主軸，除了頭題文章帶出生活物慾和環保意識，也有些作品聚焦於性別議題，為多元性別與平權發聲；另外還有多則紀錄歷史興衰的照片故事，富含社會變遷的滄桑感。
關於那些該死的左撇子
(2016-12-04)
劉以寧
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Department of Communication and Technology
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傳播與科技學系
在過去的歷史中，左撇子時常被視為不祥、邪惡的象徵。
山柑社區　老舊農村的蛻變
(2016-12-04)
林宥成
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Department of Communication and Technology
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傳播與科技學系
苗栗縣苑裡鎮的山柑社區，藉由農村再生，使老舊農村獲得新生命。
平權性別　從認同多元出發
(2016-12-04)
陳昶安
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Department of Communication and Technology
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傳播與科技學系
近日同婚爭議愈演愈烈，歸結而言是社會對於多元性別認識的不足。本文根據性別發展的歷程，乃至性別刻板印象和去性別化的探討，期能帶領讀者反思性別教育的盲點與利弊。
零件
(2016-12-04)
何肇耕
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Department of Communication and Technology
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傳播與科技學系
一個零件並不一定想成為零件，被製作出來之後也不一定能派上用場，就算能派上用場也可能隨時被換掉。
交大e-News第222期-頒贈Asad Madni院士名譽博士學位
(2016-12-05)
國立交通大學秘書室
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Secretariat
High-quality and Large-size Topological Insulator Bi2Te3-Gold Saturable Absorber Mirror for Mode-Locking Fiber Laser
(2016-12-05)
Chen, Hou-Ren
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Tsai, Chih-Ya
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Cheng, Hsin-Ming
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Lin, Kuei-Huei
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Yen, Po-Hsiu
A novel high-quality, large-size, reflection-type topological insulator Bi2Te3-Gold (BG) film-based nonlinear optical modulator has been successfully fabricated as a two-dimensional saturable absorber mirror (SAM) by pulsed laser deposition (PLD). This BG-SAM possesses saturation fluence of 108.3 mu J/cm(2), modulation depth (Delta R) of 6.5%, non-saturable loss of 38.4%, high damage threshold above 1.354 mJ/cm(2) and excellent uniformity providing for the generation of passive mode-locked (ML) pulses for erbium-doped fiber lasers (EDFLs) on a large sample area. Under 124 mW 976 nm pumping, We obtained 452-fs continuous-wave ML pulses with pulse energy of 91 pJ and full width at halfmaximum (FWHM) of 6.72-nm from this EDFL. The results clearly evidence that the PLD is an efficient method for fabricating BG-SAM that is suitable for a compact ultrafast ML fiber laser system.
In-Oleo Microgasometry of Nanoliter-Scale Gas Volumes with Image-Based Detection
(2016-12-06)
Prabhu, Gurpur Rakesh D.
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Urban, Pawel L.
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應用化學系
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Department of Applied Chemistry
Gasometric assays involve measurements of the amounts of gases that are released during physical or chemical processes. The available instrumentation for gasometric analysis is generally difficult to use and requires large sample volumes. In some cases, toxic materials (mercury) are involved in the analysis process. Here, we propose a microscale gasometric assay using silicone oil as matrix. Microliter-volume (similar to 2.5 mu L) aqueous droplets, containing sample and reagent and/or catalyst, are introduced to the oil matrix and merged. Nanoliters of gaseous products are released to the surrounding oil matrix forming tiny spherical bubbles. Due to the huge differences between refractive indices of the released gas and the surrounding liquids (aqueous assay solution, oil), the gas bubbles are clearly visible from the top, when the assay reservoir is illuminated from the bottom with light emitting diodes. The released gas bubbles are documented by recording videos of the assay reservoir. Individual frames within these videos are then analyzed by a graphical software to obtain diameters of every gas bubble at each time point. Following a fixed period of time (typically, 5-90 s) after the sample/reagent droplet merger, the volume of the released gas scales with the amount of the substrate (analyte) present in the sample droplet. For example, hydrogen peroxide can be decomposed to oxygen by 0.44 U catalase enzyme and semiquantified in the range up to similar to 1.0 mu mol. Glutathione can be detected in a two-step procedure ((1) oxidation of glutathione by hydrogen peroxide; (2) decomposition of the hydrogen peroxide residue by catalase).
Plug-Volume-Modulated Dilution Generator for Flask-Free Chemistry
(2016-12-06)
Liu, Pei-Han
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Urban, Pawel L.
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應用化學系
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應用化學系分子科學碩博班
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Department of Applied Chemistry
Dilution is one of the common chemical procedures which are carried out in all chemistry laboratories to prepare standard solutions with different concentrations for assay calibration, and to reduce matrix effects while handling complex samples. Yet dilution is mostly performed manually using large volume manual liquid-handling tools (volumetric flasks, graduated cylinders, and pipettes). Here we describe a simple continuous and automated method of diluting complex samples and stock solutions using an Arduino-based control unit. The proposed plug-volume-modulation approach relies on continuous introduction of short plugs of samples separated with short plugs of solvent. The train of sample pulses is generated by opening and closing two pinch valves interchangeably, so that either sample or solvent can enter the mixing zone (T-junction). The plugs of sample and solvent are pulled along a transfer flow line by a peristaltic pump. They mix due to advection, turbulence, and diffusion. The effluent of the flow line supplies diluted samples with well-defined dilution factors. The desired dilution factor is programmed by setting the duration of sample and solvent pulses injected in every cycle. The sample duty cycle effectively determines the dilution factor. Initially, we verified the quality of the generated diluted samples by off-line and online optical detection. We further demonstrated the usefulness of this dilution generator when selecting the optimum dilution factors for complex samples analyzed by direct infusion electrospray ionization mass spectrometry. The proposed method eliminates conventional glassware from dilution steps. Hence, it can readily be incorporated into automated analytical systems.
Further resolution enhancement of high-sensitivity laser scanning photothermal microscopy applied to mouse endogenous
(2016-12-07)
Nakata, Kazuaki
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Tsurui, Hiromichi
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Kobayashi, Takayoshi
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電子物理學系
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Department of Electrophysics
Photothermal microscopy has intrinsically super resolution capability due to the bilinear dependence of signal intensity of pump and probe. In the present paper, we have made further resolution improvement of high-sensitivity laser scanning photothermal microscopy by applying non-linear detection. By this, the new method has the following advantages: (1) super resolution with 61% and 42% enhancement from the diffraction limit values of the probe and pump wavelengths, respectively, by a second-order non-linear scheme, (2) compact light source using inexpensive conventional diode lasers, (3) wide applicability to nonfluorescent materials such as gold nanoparticles (GNPs) and hematoxylin-eosin stained biological samples, (4) relative robustness to optical damage, and (5) a high-frame rate using a Galvano mirror. The maximum resolution is determined to be 160 nm in the second-order non-linear detection mode and 270 nm in the linear detection mode by the PT signal of GNPs. The pixel rate and frame rate for 300 x 300 pixel image are 50 mu s and 4.5 s, respectively. The pixel and frame rate are shorter than the rates, which are 1ms and 100 s, respectively, using the piezo-driven stage system. Published by AIP Publishing.
New D-A1-D-A2-Type Regular Terpolymers Containing Benzothiadiazole and Benzotrithiophene Acceptor Units for Photovoltaic Application
(2016-12-07)
Keshtov, Mukhamed L.
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Khokhlov, Alexei R.
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Kuklin, Serge A.
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Chen, Fang-Chung
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Koukaras, Emmanuel N.
Two novel regular terpolymers that are of D-A1-D-A2 type and contain benzothiadiazole and 2,5-dibromo-8-dodecanoylbenzo[1,2-b:3,4-b\':5,6-d \'\']trithiophene (P1) or 2,8-dibromo-5-dodecanoylbenzene[1,2-b:3,4-b\':5,6-d6-d \'\']trithiophene (P2) acceptor units with the same thiophene donor were synthesized through Stille coupling, and their optical and electrochemical properties were investigated. The highest occupied molecular orbital (HOMO) and lowest unoccupied (LUMO) molecular orbital energy levels of these terpolymers indicate that there is sufficient LUMO offset with PCBM for efficient exciton dissociation, and their deeper HOMO levels ensure the high open-circuit voltage for the resultant bulk heterojunction solar cells. Measurements on the solar cell devices also confirm that compared to those based on P2 the devices based on P1 possess a higher short-circuit photocurrent (J(sc)) as well as a higher fill factor (FF), which is attributed to the lower bandgap and higher hole mobility for P1, whereas the V-oc is higher for the devices that are based on P2, which may be a result of P2 having a lower HOMO energy level than P1. The optimized polymer solar cells fabricated using P1:PC71BM (DIO/CF) and P2:PC71BM (CF/DIO) for the active layers showed a PCE of 7.19% and 6.34%, respectively. Atomic force microscopy (AFM) images of PEPC71BM blend films show that they exhibit more suitable morphology with favorable interpenetrating networks, which favors high J(sc) and FF. Moreover, P1 exhibits a more crystalline nature than P2 that also favors the charge transport. This may be a result of better molecular packing, more distinct phase separation of the blended films, as well as a reduction of charge recombination.