Browsing by Issue Date, starting with "2019-04-21"

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Physicochemical characteristics of microbial content in a modified anaerobic inclining-baffled reactor (MAI-BR) treating recycled paper mill effluent (RPME)
(2019-04-21)
Zwain, Haider M.
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Chang, Sue-Min
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Dahlan, Irvan
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環境工程研究所
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Institute of Environmental Engineering
Microbial content formed in bioreactors plays a significant role in the anaerobic process. Therefore, the physicochemical characteristics of microbial content in a modified anaerobic inclining-baffled reactor (MAI-BR) treating recycled paper mill effluent (RPME) were investigated using Fourier transform infrared (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), thermogravimetric (TG), and derivative thermogravimetric (DTG) analyses, scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), Brunauer-Emmett-Teller (BET), and surface area analyzer. FTIR spectra revealed that the microbial content had stronger characteristic peaks corresponding to alcohols, water, lipids carbohydrates, proteins, and mineral compounds. Calcite, muscovite, and lepidolite were the prevalent mineral phases found by XRD analysis. The elemental of these minerals like C, Ca, N, O, and Si was confirmed by XPS results. The microbial content samples from each compartment showed similar thermal behavior. SEM images showed that straight rod-shaped and Methanosaeta-like microorganisms were predominant, whereas C, O, and Ca were noticed by EDS on the surface of granules. The BET surface areas and pores of granules are found to decline throughout the reactor's compartment, where Compartment 1 had the largest values. Thus, the findings of this study establish further understanding of the physicochemical properties of microbial content formed in MAI-BR during the RPME treatment.
隋姚王之戀：還給王心凌的清白
(2019-04-21)
卓瑋哲
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Department of Communication and Technology
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傳播與科技學系
【2019愛凌依舊　甜蜜天后王心凌】專題

2012年王心凌捲入姚元浩與隋棠的戀情，占據各大娛樂頭條長達一星期，當時王心凌被迫背負的「小三」罪名，媒體卻始終沒有替她澄清。本文以簡單易懂的圖表，整理整個事件的脈絡，還給王心凌一個清白。
解構神秘音樂盒
(2019-04-21)
彭姿敏
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Department of Communication and Technology
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傳播與科技學系
【解密小提琴】專題

小提琴不單只是大家眼中用幾片木板組裝的樂器而已，要製作一把好琴，必須依照黃金比例，並且嚴格挑選木材，而這些因素都會影響到它的聲音。今天就帶大家了解小提琴的基本構造與其聲音的關聯。
總編輯的話
(2019-04-21)
程安瑜
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Department of Communication and Technology
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傳播與科技學系
本期為喀報312期，共計6篇文章，包含三篇文化現象、兩篇社會議題、一篇藝文評論。本期頭題為汪彥彤的〈單科教學落伍　教師跨出一大步〉，文章從多面向帶領讀者認識教育新課綱，並從中思考學習的動機與教育的意義，令人省悟。
韓妝熱度大解密　有多火 ?　
(2019-04-21)
許可晴
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Department of Communication and Technology
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傳播與科技學系
歐美化妝品品牌一直是全球化妝品的流行指標。而近年不只在台灣，在全球化妝品市場中，韓國化妝品品牌漸漸竄上檯面，被越來越多人知道甚至購買。
單科教學落伍　教師跨出一大步
(2019-04-21)
汪彥彤
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Department of Communication and Technology
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傳播與科技學系
芬蘭取經回國後，教育部又有新政策？看老師如何跨域協同。
Bidentate chelating ligands as effective passivating materials for perovskite light-emitting diodes
(2019-04-21)
Hsiao, Ming-Chuan
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Chien, Ping-Cheng
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Jhuang, Lu-Syuan
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Chen, Fang-Chung
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交大名義發表
Herein, four pyridine-based chelating ligands, including 1,10-phenanthroline, 4,4-bipyridine, 4,7-diphenyl-1,10-phenanthroline (Bphen) and pyridine, are used as surface treatment agents for improving the electronic properties of perovskite materials. The results of the steady-state photoluminescence (PL), time resolved PL and hole-only devices made of CH3NH3PbBr3 thin films suggest that the traps are effectively passivated after post-deposition surface treatment with bidentate chelating ligands, including 1,10-phenanthroline and 4,4-bipyridine. Furthermore, the coordination capability of Bphen was suppressed which is probably due to its two additional phenyl groups, resulting in a steric hindrance effect. When compared with mono-dentate chelating pyridine, bidentate chelating ligands are more active in the current study. Finally, perovskite light-emitting diodes (PeLEDs) are fabricated and the devices exhibit a nearly doubled device efficiency after passivation with 1,10-phenanthroline. It is anticipated that the approach proposed here is a general method for improving the photonic properties of perovskite materials and the device performance of PeLEDs.
茶葉知識大補帖
(2019-04-21)
許家芸
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Department of Communication and Technology
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傳播與科技學系
【大家一起來找茶！】專題

茶雖然是大家平常常接觸到的事物，可是我們對它常常傻傻分不清，今天就讓我們一次釐清茶的一些基本小知識吧！
迷人的厭世黑色喜劇　倫敦生活
(2019-04-21)
洪蜜禪
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Department of Communication and Technology
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傳播與科技學系
【你在煩惱什麼？從喪劇看人生】專題

《倫敦生活》是一部風格很喪的黑色喜劇，主角過著糟糕而邋遢的生活，總是處理不好自己的關係。為什麼沒有人可以直接告訴我們該如何生活，下一步該怎麼走？
Spectrophotometric and thermal stability of agarose-based ultrasonic tissue-mimicking gel
(2019-04-21)
Chen, Heng-Yin
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Chen, Nelson G.
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分子醫學與生物工程研究所
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電機工程學系
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Institute of Molecular Medicine and Bioengineering
Spectrophotometric measurements of a commonly used agarose-based ultrasonic tissue-mimicking gel are reported. In addition, spectral characteristics after heating to different temperatures provide thermostability information. Thermostability of agarose gels has not been previously reported, except in general terms. Gels were produced and cast into 2 mm thick spectrophotometric cuvettes. UV-Vis spectra were recorded after gels were heated to various temperatures. Spectral changes resulting from heating were noted and were largely unchanged with heating to temperatures ranging from 30 to 70 degrees C. Only with heating to 80 degrees C, which is near the melting point of the gel material, do spectra irreversibly change. We show that agarose-based tissue-mimicking gels are largely stable over temperatures relevant to most biomedical ultrasonic studies, including those examining hyperthermia or high-intensity focused ultrasound. Therefore, they likely provide a stable substrate in which to conduct ultrasonic heating studies. In addition, UV-Vis spectrophotometry of this optically opaque material has been demonstrated. Possible additives to this material that would enable the measurement of temperature fields through postexposure sectioning and slicing are subsequently discussed. Published under license by AIP Publishing.
Using Different Ions to Tune Graphene Stack Structures from Sheet- to Onion-Like During Plasma Exfoliation, with Supercapacitor Applications
(2019-04-23)
Yen, Po-Jen
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Sahoo, Sumanta Kumar
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Chiang, Ya-Chi
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Huang, Shih-Yu
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Wu, Chia-Wei
In this article, we report a facile and simple approach for tuning graphene nanosheet structures (GNS) with different ions in the electrolytes through cathodic plasma exfoliation process in electrochemical reactions. We obtained sheet- and onion-like GNS when aqueous electrolyte NaOH and H2SO4, respectively, were present during plasma exfoliation in the electrochemical reactions, as evidenced from scanning electron microscopy and transmission electron microscopy images. Moreover, the onion-like GNS exhibited a specific surface area of 464m(2) g(-1) and a supercapacitive performance of 67.1F g(-1), measured at a scan rate of 5mV s(-1) in 1M NaCl; these values were much higher than those (72m(2) g(-1) and 21.6F g(-1), respectively) of the sheet-like GNS. This new approach for efficiently generating tunable stacked graphene structures with different ions, in the cathodic plasma exfoliation process, has promising potentials for use in energy storage devices.
New Simultaneous Exfoliation and Doping Process for Generating MX2 Nanosheets for Electrocatalytic Hydrogen Evolution Reaction
(2019-04-24)
Van-Truong Nguyen
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Yang, Tzu-Yi
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Phuoc Anh Le
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Yen, Po-Jen
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Chueh, Yu-Lun
Doping nonmetal atoms into layered transition metal dichalcogenide MX2 structures has emerged as a promising strategy for enhancing their catalytic activities for the hydrogen evolution reaction. In this study, we developed a new and efficient one-step approach that involves simultaneous plasma-induced doping and exfoliating of MX2 bulk into nanosheets-such as MoSe2, WSe2, MoS2, and WS2 nano sheets-within a short time and at a low temperature (ca. 80 degrees C). Specifically, by utilizing active plasma that is generated with an asymmetric electrical field during the electrochemical reaction at the surface of the submerged cathode tip, we are able to achieve doping of nitrogen atoms, from the electrolytes, into the semiconducting 2H-MX2 structures during their exfoliation process from the bulk states, forming N-doped MX2. We selected N-doped MoS2 nanosheets for demonstrating their catalytic hydrogen evolution potential. We modulated the electronic and transport properties of the MoS2 structure with the synergy of nitrogen doping and exfoliating for enhancing their catalytic activity. We found that the nitrogen concentration of 5.2 atom % at N-doped MoS2 nanosheets have an excellent catalytic hydrogen evolution reaction, where a low overpotential of 164 mV at a current density of 10 mA cm(-2) and a small Tafel slope of 71 dec mV(-1)-much lower than those of exfoliated MoS2 nanosheets (207 mV, 82 dec mV(-1)) and bulk MoS2 (602 mV, 198 dec mV(-1))-as well as an extraordinary long-term stability of >25 h in 0.5 M H2SO4 can be achieved.
Biomechanical investigation of dynamic hip screw and wire fixation on an unstable intertrochanteric fracture
(2019-04-24)
Wu, Hsu-Fu
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Chang, Chih-Han
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Wang, Gwo-Jaw
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Lai, Kuo-An
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Chen, Chung-Hwan
BackgroundAlthough use of a dynamic hip screw (DHS) for stable intertrochanteric hip fracture fixation has been successfully applied in fracture healing for more than 20years, DHS fixation on unstable intertrochanteric fractures still has a high failure rate, especially in patients with osteoporosis. Although the wire fixation is usually incorporated with orthopedic device to treat fracture, the wiring techniques are developed through experiences. Thus, this study is objective to investigate the biomechanical property of different wire fixation methods incorporated with DHS system to provide the lesser trochanter fragment stable fixation on osteoporotic TypeA2.1 fracture for enhancing stability after bone reduction.ResultsSawbone testing results demonstrated higher maximum load, stiffness, and energy in a DHS with wire fixation compared with DHS fixation only. In static biomechanical testing of a cadaver femur, we compared the stiffness of five fixation models and then tested a fatigue failure model in cycle loading with DHS fixation only. Wiring fixation can enhance stability and the cut-out failure model in the fatigue test was identical to the clinical failure model.ConclusionsLesser trochanteric fragment fixation is a crucial concern in the stability of an A2.1 unstable fracture, and the combination of a wiring technique with a DHS seems beneficial for achieving better stability. The addition of an antirotational greater trochanter is likely to enhance stability through wiring of the greater trochanter.
A rationally based model applicable for heat pump tumble dryer
(2019-04-26)
Lee, Bing-Hung
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Sian, Rony A.
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Wang, Chi-Chuan
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機械工程學系
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Department of Mechanical Engineering
The present study proposes a rationally based heat pump clothes dryer model which is capable of handling transient behaviors of both air-side and refrigerant side. The model can take into account the geometrical variation of the heat exchangers. Yet the proposed model is free from extra constraints that were normally imposed by previous studies. The simulation shows that there exist three stages in a typical drying process, including a preheat stage, followed by a constant evaporation stage, and finally a falling drying rate period. The calculation indicates that the variation of the clothes temperature and the system suction/discharge pressure show an appreciable rise in the first stage, remain nearly unchanged at the second stage, and increase again at the final stage of drying process. Also, the corresponding maximum specific moisture extraction rate (SMER) peaks at the end of the second stage while the corresponding coefficient of performance (COP) drops continuously. The simulation also indicates that increasing the air volumetric flowrate yields a lower discharge/suction pressure, a higher COP value, and a shorter drying time. The results also suggested that a good strategy to maximize COP is initiated by a low volumetric rate during the preheat stage, increasing it during the second stage and lowering it to an intermediate flowrate at the end of the drying period. Increasing heat exchanger size, either by increasing heat exchanger width or the number of tube row, results in a lower suction/discharge pressure and a shorter drying time. Although both approaches adopt larger surface area to promote overall performance, it is found that increasing the width of heat exchanger yields more effective results.
Dark channel prior based video dehazing algorithm with sky preservation and its embedded system realization for ADAS applications
(2019-04-29)
Tsai, Chia-Chi
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Lin, Cheng-Yen
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Guo, Jiun-In
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電子工程學系及電子研究所
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Department of Electronics Engineering and Institute of Electronics
Dark Channel Prior (DCP) is one of the significant dehazing methods based upon the observation of the key features of the haze-free images. But it has disadvantages; high computational complexity, over-enhancement in the sky region, flickering artefacts in video processing, and poor dehazing. Therefore, we propose improved solutions to solve the aforementioned drawbacks. First, we adopt the fast one-dimensional filter, look-up table, and program optimization to reduce the computational complexity. Next, we follow by using a part of the guided filter for sky detection and to preserve the sky region from noise by avoiding over recovery. Then, we propose an airtight update strategy and adjust the radius of a guided filter to reduce the flickering artifacts and also propose an airtight estimation method to produce the better dehazing result as the final step of our algorithm. The improved results from our proposed algorithm are stable and are obtained from the real-time processing suitable for ADAS, surveillance, and monitoring systems. The implementation of the proposed algorithm has yielded a processing speed of 75 fps and 23 fps respectively on an NVIDIA Jetson TX1 embedded platform and Renesas R-Car M2. both on DI (720x480) resolution videos. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
【補充工作新動力】電影裡的生涯課～從微觀性向邁入巨觀職涯
(國立陽明大學, 2019-04-30)
陽明電子報編輯小組
打造最佳就業媒合平台，2019生醫就博會熱鬧登場
(國立陽明大學, 2019-04-30)
陽明電子報編輯小組
全國最大的生醫科技就業博覽會，4月27日在本校活動中心熱鬧登場！今年不僅盛況依舊，共有59家企業參展以及1200多位學生、企業人員...
陽明參與台日高齡學研合作，提升國際能見度
(國立陽明大學, 2019-04-30)
陽明電子報編輯小組
由陽明與國家衛生研究院、台北榮總，和日本國立長壽醫療研究中心合作多年的台日高齡學研合作，由於成果良好，台日雙方4月11日於名...
【反毒宣導月活動】毒你千遍也不厭倦～快樂健康，遠離毒害
(國立陽明大學, 2019-04-30)
陽明電子報編輯小組
關於夢的二三事
(國立陽明大學, 2019-04-30)
許伶楓
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陽明電子報編輯小組