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Comparison of Generator Performance of Small-Scale MHD Generators with Different Electrode Dispositions and Load Connection System
Takahashi. Toru, Fujino. Takayasu, Ishikawa. Motoo 대한전기학회 Journal of international council on electrical engineering 7 Pages
대한전기학회 Journal of international council on electrical engineering 2014, Vol.4 No.3 192-198 (7 pages)
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Three-dimensional porous graphene materials for environmental applications
Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh 한국탄소학회 Carbon Letters 13 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 1 1-13 (13 pages)
ionic and electronic transport. In order to improve the capacitance of the electrode material, a thin layer of MnO 2 was addition- ally deposited onto the e-CMG. The large surface area of the porous graphene structure facilitated fast ionic transport within the electrode, while maintaining decent electronic conductivity. The resulting MnO 2/e-CMG composite electrodes demonstrated Fig. 4. (a)... with atoms, ions and molecules to occur throughout the bulk of the material, for practical applications. Three-dimensional (3D) porous carbon-based materials (e.g., graphene aerogels/hydrogels, sponges and foams) made of graphene or graphene oxide-based networks have attracted considerable attention because they offer low density, high porosity, large surface area, excellent electrical conductivity and stable mechanical properties. Water pollution and associated environmental issues have become... -
High-energy-density activated carbon electrode for organic electric-double-layer-capacitor using carbonized petroleum pitch
Poo Reum Choi, Sang-Gil Kim, Ji Chul Jung, Myung-Soo Kim 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 8 70-80 (11 pages)
properly cited. Three-dimensional porous graphene materials for environmental applications Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang and Yun Suk Huh KCS Korean Carbon Society carbonlett.org pISSN: 1976-4251 eISSN: 2233-4998 REVIEWS VOL. 22 April 30 2017 ..PAGE:2 High-energy-density activated carbon electrode using petroleum pitch 71 http://carbonlett.org absorption/desorption... decrease, but the crystallinity and electrode density tended to increase, showing a maximum volumetric capacitance at a medium carbonization temperature. Therefore, it was possible to control the crystalline structure, SSA, and pore structure of AC by changing the pre-carbonization temperature. Because the electrode density increased with increasing of the pre-carbonization temperature, the highest volumetric capacitance of 28.4 F/cc was obtained from the PP pre-carbonized at 700°C, exhibiting... -
Spatial reproducibility of complex fractionated atrial electrogram depending on the direction and configuration of bipolar electrodes: an in-silico modeling study
Jun-SeopSong, Young-SeonLee, MinkiHwang, Jung-KeeLee, ChangyongLi, BoyoungJoung, Moon-HyoungLee, EunBoShim, Hui-NamPak 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 8 507-514 (8 pages)
13. Hwang M, Kwon SS, Wi J, Park M, Lee HS, Park JS, Lee YS, Shim EB, Pak HN. Virtual ablation for atrial fibrillation in personalized in-silico three-dimensional left atrial modeling: comparison with clinical catheter ablation. Prog Biophys Mol Biol. 2014;116:40-47. 14. Courtemanche M, Ramirez RJ, Nattel S. Ionic mechanisms underlying human atrial action potential properties: insights from a... for persistent atrial fibrillation (AF), the directions and configuration of the bipolar electrodes may affect the electrogram. This study aimed to compare the spatial reproducibility of CFAE by changing the catheter orientations and electrode distance in an in -silico left atrium (LA). We conducted this study by importing the heart CT image of a patient with AF into a 3D-homogeneous human LA model. Electrogram morphology, CFAE-cycle lengths (CLs) were compared for 16 different orientations of a... -
Thermo-electrical properties of randomly oriented carbon/carbon composite
Thakur Sudesh Kumar Raunija, N. Supriya 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 3 25-35 (11 pages)
is properly cited. Three-dimensional porous graphene materials for environmental applications Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang and Yun Suk Huh KCS Korean Carbon Society carbonlett.org pISSN: 1976-4251 eISSN: 2233-4998 REVIEWS VOL. 22 April 30 2017 ..PAGE:2 Carbon Letters Vol. 22, 25-35 (2017) DOI: http://dx.doi.org/10.5714/CL.2017.22.025 26 2.2. Fabrication of the C/C... The aim of the work was to investigate the thermo-electrical properties of low cost and rapidly produced randomly oriented carbon/carbon (C/C) composite. The composite body was fabricated by combining the high-pressure hot-pressing (HP) method with the lowpressure impregnation thermosetting carbonization (ITC) method. After the ITC method step selected samples were graphitized at 3000°C. Detailed characterization of the samples’ physical properties and thermal properties, including thermal... -
Influence of defective sites in Pt/C catalysts on the anode of direct methanol fuel cell and their role in CO poisoning: a first-principles study
Soonchul Kwon, Seung Geol Lee 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 6 198-202 (5 pages)
systems, using the three-dimensional pe- riodic slab model. Geometry optimizations were performed us- ing DMol 3 (Dassault Systemes BIOVIA, San Diego, CA, USA) under the following conditions: 1) the spin-polarized general gradient approximation (GGA)-PBE functional [14,15] option, and 2) the DNP basis set, to predict the properties of catalyst and adsorbates (H2 or CO). GGA-PBE based functions... Carbon-supported Pt catalyst systems containing defect adsorption sites on the anode of direct methanol fuel cells were investigated, to elucidate the mechanisms of H2 dissociation and carbon monoxide (CO) poisoning. Density functional theory calculations were carried out to determine the effect of defect sites located neighboring to or distant from the Pt catalyst on H2 and CO adsorption properties, based on electronic properties such as adsorption energy and electronic band gap. Interestingly,... -
Preparation and characterization of carbon fiber-reinforced thermosetting composites: a review
Fan-Long Jin, Soo-Jin Park 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 1 67-77 (11 pages)
1 (1992). http://dx.doi. org/10.1016/0266-3538(92)90116-K. [55] Li H, Liang H, He F, Huang Y, Wan Y. Air dielectric barrier dis- charges plasma surface treatment of three-dimensional braided carbon fber reinforced epoxy composites. Surf Coat Technol, 203, 1317 (2009). http://dx.doi.org/10.1016/j.surfcoat.2008.10.042. [56] Iwashita N, Psomiadou E, Sawada Y. Effect of coupling treatment of carbon... Carbon fibers (CFs) have a unique combination of properties which allow them to be widely used as reinforcing materials in advanced polymer composites. The mechanical properties of CF-reinforced polymer composites are governed mainly by the quality of interfacial adhesion between the CFs and the polymer matrix. Surface treatments of CFs are generally carried out to introduce chemical functional groups on the fiber surfaces, which provide the ability to control the surface characteristics of CFs.... -
쥐 와우의 영상 분석에 있어 Micro-CT의 가능성과 한계
최철희 한국청각언어재활학회 Audiology and Speech Research 7 Pages
한국청각언어재활학회 Audiology and Speech Research 2012, 제 8권 제 1호 1 9-15 (7 pages)
three-dimensional tomography image was generated by volume rendering. RESULTS The micro-CT allowed visualizing the structures of the cochlea. Although three rats were used as subjects, all re- sults were similar to each other. The best images were chos- en and presented for analysis. Fig. 2 shows the cochlear duct coiling from the base to the apex. The height of the cochlear turns ranges from... -
Preparation of photoresist-derived carbon micropatterns by proton ion beam lithography and pyrolysis
Hui-Gyun Nam, Jin-Mook Jung, In-Tae Hwang, Junhwa Shin, Chang-Hee Jung, Jae-Hak Choi 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 8 55-61 (7 pages)
2. Three-dimensional surface pro les of proton ion beam lithography (PIBL) (a) and carbon micropatterns (CMs) (b). Fig. 3. Ultraviolet-visible absorption spectra of pristine (a), proton- irradiated (b), and pyrolyzed (c) SU-8 lms. Fig. 4. Attenuated total reflectance Fourier transform infrared spec- trometry (ATR-FTIR) spectra of pristine (a), proton-irradiated (b), and pyro- lyzed (c) SU-8 lms.... Carbon micropatterns (CMs) were fabricated from a negative-type SU-8 photoresist by proton ion beam lithography and pyrolysis. Well-defined negative-type SU-8 micropatterns were formed by proton ion beam lithography at the optimized fluence of 1×1015 ions cm?2 and then pyrolyzed to form CMs. The crosslinked network structures formed by proton irradiation were converted to pseudo-graphitic structures by pyrolysis. The fabricated CMs showed a good electrical conductivity of 1.58×102 S cm?1 and a...