자료유형
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전체 선택해제
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Characterization of Silver Saturated-Ge45Te55 Solid Electrolyte Films Incorporated by Nitrogen for Programmable Metallization Cell Memory Device
Lee. Soo-Jin, Yoon. Soon-Gil, Yoon. Sung-Min, Yu. Byoung-Gon 한국전기전자재료학회 Transactions on electrical and electronic materials 6 Pages
한국전기전자재료학회 Transactions on electrical and electronic materials 2007, Vol.8 No.2 73-78 (6 pages)
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Quantification of Methanol Concentration in the Polymer Electrolyte Membrane of Direct Methanol Fuel Cell by Solid-state NMR
Kim. Seong-Soo, Paik. Youn-Kee, Kim. Sun-Ha, Han. Oc-Hee 한국자기공명학회 Journal of the Korean magnetic resonance society 7 Pages
한국자기공명학회 Journal of the Korean magnetic resonance society 2008, Vol.12 No.2 96-102 (7 pages)
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Novel Extended π-Conjugated Dendritic Zn(II)-porphyrin Derivatives for Dye-sensitized Solar Cell Based on Solid Polymeric Electrolyte: Synthesis and Characterization
Kang. Min-Soo, Oh. Jae-Buem, Roh. Soo-Gyun, Kim. Mi-Ra, Lee. Jin-Kook, Jin. Sung-Ho, Kim. Hwan-Kyu 대한화학회 Bulletin of the Korean Chemical Society 8 Pages
대한화학회 Bulletin of the Korean Chemical Society 2007, Vol.28 No.1 33-40 (8 pages)
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Synthesis and Conductivity of PEGME Branched Poly(ethylene-alt-maleimide) Based Solid Polymer Electrolyte
강용구, 서연호, 이창진, Gang. Yong Gu, Seo. Yeon Ho, Lee. Chang Jin 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2000, Vol.21 No.2 241-244 (4 pages)
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Lithium Ion Concentration Dependant Ionic Conductivity and Thermal Properties in Solid Poly(PEGMA-co-acrylonitrile) Electrolytes
Kim. Kyung-Chan, Roh. Sae-Weon, Ryu. Sang-Woog 한국전기화학회 Journal of electrochemical science and technology 6 Pages
한국전기화학회 Journal of electrochemical science and technology 2010, Vol.1 No.1 57-62 (6 pages)
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Improvement of Properties in Solid Polymer Electrolyte Using New Preparation Method
김태희, 이정훈, 박권필, Kim. Tae-Hee, Lee. Jung-Hun, Park. Kwon-Pil 한국수소및신에너지학회 한국수소 및 신에너지학회 논문집 7 Pages
한국수소및신에너지학회 한국수소 및 신에너지학회 논문집 2006, Vol.17 No.3 331-337 (7 pages)
높은 이온전도도와 충분한 기계적 강도, 전해질 누수가 적은 새로운 형태의 고분자 전해질막(pore-gel SPE)을 연구 개발하였다. 다공성 PVDF-HFP 고분자막의 기공 내에 전해질 용액을 흡수시킨 후 막 내에서 젤화를 진행시켰다. 전해질 용액은 2:2:1의 비를 갖는 PC/EC/DMA에 1M SA(Salicylic acid)를 용해하고 여기에 고분자막을 용해시킬 수 있는 아세톤을 첨가하였다. 초음파를 이용함으로써 고분자막의 용액 흡수율을 증가시키고 또 고분자막에서 젤화를 촉진 시킬 수 있었다. 이렇게 젤화한 막의 이온전도도는 젤화 전 막보다... -
Anion Receptor Based on Cyclic Siloxanes Substituted with Trifluoromethane-Sulfonylamide for Solid Polymer Electrolytes
Lee. Won-Sil, Woo. Seong-Ihl, Kim. Dong-Wook, Lee. Chang-Jin, Kang. Yong-Ku 한국고분자학회 Macromolecular research 5 Pages
한국고분자학회 Macromolecular research 2010, Vol.18 No.3 266-270 (5 pages)
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Quasi-Solid State Electrolytes Based on Nonionic Surfactant-PEGDME Composites for Dye-Sensitized Solar Cells
An. Hyo-Sung, Park. Hyo-Young, Kang. Eun-Mi, Cho. Dae-Won, Lee. Chan-Woo, Kim. Jong-Man 대한화학회 Bulletin of the Korean Chemical Society 2 Pages
대한화학회 Bulletin of the Korean Chemical Society 2011, Vol.32 No.10 3555-3556 (2 pages)
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Effects of Polyaniline Additive in Solvent-Free Ionic Liquid Electrolyte for Dye-Sensitized Solar Cell
Lee. Jae-Kwan, Nath. Narayan Chandra Deb, Cha. Eun-Hee, Sarker. Subrata, Park. Hyung-Soon, Jeong. Woo-Sung, Hong. Seok-Ho, Lee. Jae-Joo 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2010, Vol.31 No.11 3411-3414 (4 pages)
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Fillers for Solid-State Polymer Electrolytes: Highlight
Jung. Srun, Kim. Dae-Won, Lee. Sang-Deuk, Cheong. Minserk Cheong, Nguyen. Dinh Quan, Cho. Byung-Won, Kim. Hoon-Sik 대한화학회 Bulletin of the Korean Chemical Society 7 Pages
대한화학회 Bulletin of the Korean Chemical Society 2009, Vol.30 No.10 2355-2361 (7 pages)
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Thermal Behavior of LixCoO2 Cathode and Disruption of Solid Electrolyte Interphase Film
Doh. Chil-Hoon, Kim. Dong-Hun, Lee. Jung-Hun, Lee. Duck-Jun, Jin. Bong-Soo, Kim. Hyun-Soo, Moon. Seong-In, Hwang. Young-Gi, Veluchamy. A 대한화학회 Bulletin of the Korean Chemical Society 4 Pages
대한화학회 Bulletin of the Korean Chemical Society 2009, Vol.30 No.4 783-786 (4 pages)
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Relationships between dielectric properties and characteristics of impregnated and activated samples of potassium carbonate- and sodium hydroxide-modified palm kernel shell for microwave-assisted activation
Norulaina Alias, Muhammad Abbas Ahmad Zaini, Mohd Johari Kamaruddin 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 9 62-72 (11 pages)
The aim of this work was to evaluate the dielectric properties of impregnated and activated palm kernel shells (PKSs) samples using two activating agents, potassium carbonate (K2CO3) and sodium hydroxide (NaOH), at three impregnation ratios. The materials were characterized by moisture content, carbon content, ash content, thermal profile and functional groups. The dielectric properties were examined using an open-ended coaxial probe method at various microwave frequencies (1?6 GHz) and... -
Ge25Se75-based ReRAM 소자의 전계에 의한 저항 변화에 대한 연구
김장한, 남기현, 정홍배, Kim. Jang-Han, Nam. Ki-Hyun, Chung. Hong-Bay 한국전기전자재료학회 전기전자재료학회논문지 5 Pages
한국전기전자재료학회 전기전자재료학회논문지 2012, Vol.25 No.3 182-186 (5 pages)
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The stress of weaning influences serum levels of acute-phase proteins, iron-binding proteins, inflammatory cytokines, cortisol, and leukocyte subsets in Holstein calves
Myung-Hoo Kim, Ji-Young Yang, Santi Devi Upadhaya, Hyun-Jun Lee, Cheol-Heui Yun, Jong K. Ha 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 2호 7 151-158 (8 pages)
The purpose of our study was to investigate changes in immunological parameters induced by weaning stress (including milk restriction) in calves. Fifteen Holstein calves were subjected to weaning at 6 weeks of age. Blood samples were collected at -14, -7, -2, 1, 3, and 5 days post-weaning (DPW; 0 DPW = 42 days). Weaning caused significant (p < 0.01) increases in the neutrophil (NE):lymphocyte (LY) ratio at 5 DPW with a significant (p < 0.05) reduction of LYs. The concentration of acute-phase... -
Effect of BL-21 (Wei-Yu) acupoint stimulation on gastric motility following preanesthetic treatment in dogs
Hee-Young Kim, Oh-Kyeong Kwon, Tchi-Chou Nam 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2000, 제 1권 제 2호 11 133-138 (6 pages)
In acupuncture practice of animals, preanesthetics sometimes are needed. The purpose of this study was to select the ideal chemical restraint at acupuncture for gastric motility. Nine healthy mixed breed dogs weighed 10-21 kg and aged 1-3 years old were used in this study. Two EMG surface electrodes were placed between the seromuscular and the mucosal layer of pylorus. Twenty minutes after feeding normal gastric motility was recorded for 60 minutes using physiograph (Narco-Biosystem). Then... -
Structural and Compositional Analysis of Solid Oxide Fuel Cell Electrolytes using Transmission Electron Microscopy
An. Ji-Hwan, Kim. Young-Beom, Jung. Hee-Joon, Park. Joong-Sun, Cha. Suk-Won, Gur. Turgut M., Prinz. Fritz B. 한국정밀공학회 International journal of precision engineering and manufacturing 7 Pages
한국정밀공학회 International journal of precision engineering and manufacturing 2012, Vol.13 No.7 1273-1279 (7 pages)
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Ionic Conductivity of Anion Receptor Grafted Siloxane Polymers for Solid Polymer Electrolytes
Lee. Won-Sil, Kim. Dong-Wook, Lee. Chang-In, Woo. Seong-Ihl, Kang. Yong-Ku 한국전기화학회 Journal of electrochemical science and technology 6 Pages
한국전기화학회 Journal of electrochemical science and technology 2011, Vol.2 No.1 26-31 (6 pages)
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Sol-Gel법에 의한 Li1+xAlxTi2-x(PO4)3 (x = 0, 0.3, 0.5)의 합성 및 전도특성
문정인, 조홍찬, 송정환, Moon. Jung-In, Cho. Hong-Chan, Song. Jeong-Hwan 한국재료학회 한국재료학회지 6 Pages
한국재료학회 한국재료학회지 2012, Vol.22 No.7 346-351 (6 pages)
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Variation of Oxygen Nonstoichiometry of Porous $La_{0.6}Ca_{0.4}MnO_{3-{delta}}$ SOFC-Cathode under Polarization
Mizusaki. Junichiro, Harita. Hideki, Mori. Naoya, Dokiya. Masayuki, Tagawa. Hiroaki 한국세라믹학회 The Korean journal of ceramics 6 Pages
한국세라믹학회 The Korean journal of ceramics 2000, Vol.6 No.2 177-182 (6 pages)
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Effects of Phosphorous-doping on Electrochemical Performance and Surface Chemistry of Soft Carbon Electrodes
Kim. Min-Jeong, Yeon. Jin-Tak, Hong. Kijoo, Lee. Sang-Ick, Choi. Nam-Soon, Kim. Sung-Soo 대한화학회 Bulletin of the Korean Chemical Society 7 Pages
대한화학회 Bulletin of the Korean Chemical Society 2013, Vol.34 No.7 2029-2035 (7 pages)
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SO-DCFC 적용을 위한 카본블랙-탄산염 혼합 매개체의 고온 반응 특성에 대한 연구
유준호, 강경태, 황준영, Yu. Jun Ho, Kang. Kyungtae, Hwang. Jun Young 대한기계학회 大韓機械學會論文集. Transactions of the Korean society of mechanical engineers. B. B 9 Pages
대한기계학회 大韓機械學會論文集. Transactions of the Korean society of mechanical engineers. B. B 2014, Vol.38 No.8 677-685 (9 pages)
직접 탄소 연료전지(DCFC)는 석탄을 비롯한 탄소계 연료의 화학에너지를 직접 전기로 변환시킨다. 특히, 약 10 년 전에 고체산화물 전해질을 사용하고 연료극 매개체로 용융탄산염을 사용하는 고성능 직접탄소 연료전지 시스템이 제안되었다. 이 시스템의 경우, 운전 온도가 증가할수록 고체산화물 전해질의 이온 전도도가 향상되고 전기화학 반응이 활성화되어 성능이 향상되나, 연료극 매개체의 화학적인 안정성 문제발생이 우려된다. 본 연구에서는 탄소-탄산염 혼합 매개체의 고온 안정성을 이해하기 위한 일련의 실험을 수행하였다.... -
Study of complex electrodeposited thin film with multi-layer graphene-coated metal nanoparticles
Young-Lae Cho, Jung-woo Lee, Chan Park, Young-il Song, Su-Jeong Suh 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 8 68-73 (6 pages)
We have demonstrated the production of thin films containing multilayer graphene-coated copper nanoparticles (MGCNs) by a commercial electrodeposition method. The MGCNs were produced by electrical wire explosion, an easily applied technique for creating hybrid metal nanoparticles. The nanoparticles had average diameters of 10?120 nm and quasispherical morphologies. We made a complex-electrodeposited copper thin film (CETF) with a thickness of 4.8 μm by adding 300 ppm MGCNs to the electrolyte... -
Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors
Min Hong Park, Young Soo Yun, Se Youn Cho, Na Rae Kim, Hyoung-Joon Jin 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 8 66-71 (6 pages)
The development of nanostructured functional materials derived from biomass and/or waste is of growing importance for creating sustainable energy-storage systems. In this study, nanoporous carbonaceous materials containing numerous heteroatoms were fabricated from waste coffee grounds using a top-down process via simple heating with KOH. The nanoporous carbon nanosheets exhibited notable material properties such as high specific surface area (1960.1 m2 g?1), numerous redox-active heteroatoms... -
Study on urea precursor effect on the electroactivities of nitrogen-doped graphene nanosheets electrodes for lithium cells
Ki-Yong Kim, Yongju Jung, Seok Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 5 40-46 (7 pages)
Nitrogen-atom doped graphene oxide was considered to prevent the dissolution of polysulfide and to guarantee the enhanced redox reaction of sulfur for good cycle performance of lithium sulfur cells. In this study, we used urea as a nitrogen source due to its low cost and easy preparation. To find the optimum urea content, we tested three different ratios of urea to graphene oxide. The morphology of the composites was examined by field emission scanning electron microscope. Functional groups and... -
Effects of electrochemical oxidation of carbon fibers on interfacial shear strength using a micro-bond method
Dong-Kyu Kim, Kay-Hyeok An, Yun Hyuk Bang, Lee-Ku Kwac, Sang-Yub Oh, Byung-Joo Kim 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 4 32-39 (8 pages)
In this work, we studied the effects of electrochemical oxidation treatments of carbon fibers (CFs) on interfacial adhesion between CF and epoxy resin with various current densities. The surface morphologies and properties of the CFs before and after electrochemical-oxidation-treatment were characterized using field emission scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and single-fiber contact angle. The... -
One-step synthesis of dual-transition metal substitution on ionic liquid based N-doped mesoporous carbon for oxygen reduction reaction
Ulziidelger Byambasuren, Yukwon Jeon, Dorjgotov Altansukh, Yunseong Ji, Yong-Gun Shul 한국탄소학회 Carbon Letters 12 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 8 53-64 (12 pages)
Nitrogen (N)-doped ordered mesoporous carbons (OMCs) with a dual transition metal system were synthesized as non-Pt catalysts for the ORR. The highly nitrogen doped OMCs were prepared by the precursor of ionic liquid (3-methyl-1-butylpyridine dicyanamide) for N/C species and a mesoporous silica template for the physical structure. Mostly, N-doped carbons are promoted by a single transition metal to improve catalytic activity for ORR in PEMFCs. In this study, our N-doped mesoporous carbons were... -
Influence of hot-pressing pressure on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon composite
Thakur Sudesh Kumar Raunija and Sharad Chandra Sharma 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.1 4 25-33 (9 pages)
The prime objective of this research was to study the influence of hot-pressing pressure and matrix-to-reinforcement ratio on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon-composite. Secondary objectives included determination of the physical and mechanical properties of the resulting composite. The ‘hybrid carbon-fiberreinforced mesophase-pitch-derived carbon-matrix’ composite was fabricated by hot pressing. During hot pressing, pressure was varied from 5... -
Preparation of novolac-type phenol-based activated carbon with a hierarchical pore structure and its electric double-layer capacitor performance
Dayoung Lee, Jin-Young Jung, Mi-Seon Park, Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.3 6 192-197 (6 pages)
A hierarchical pore structured novolac-type phenol based-activated carbon with micropores and mesopores was fabricated. Physical activation using a sacrificial silicon dioxide (SiO2) template and chemical activation using potassium hydroxide (KOH) were employed to prepare these materials. The morphology of the well-developed pore structure was characterized using field-emission scanning electron microscopy. The novolac-type phenol-based activated carbon retained hierarchical pores (micropores... -
Double-walled carbon nanotubes: synthesis, structural characterization, and application
Yoong Ahm Kim, Kap-Seung Yang, Hiroyuki Muramatsu, Takuya Hayashi, Morinobu Endo, Mauricio Terrones, Mildred S. Dresselhaus 한국탄소학회 Carbon Letters 12 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 4 77-88 (12 pages)
Double walled carbon nanotubes (DWCNTs) are considered an ideal model for studying the coupling interactions between different concentric shells in multi-walled CNTs. Due to their intrinsic coaxial structures they are mechanically, thermally, and structurally more stable than single walled CNTs. Geometrically, owing to the buffer-like function of the outer tubes in DWCNTs, the inner tubes exhibit exciting transport and optical properties that lend them promise in the fabrication of field-effect... -
Effects of pore structures on electrochemical behaviors of polyacrylonitrile-based activated carbon nanofibers by carbon dioxide activation
Hye-Min Lee, Hong-Gun Kim, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.1 10 71-76 (6 pages)
Activated carbon nanofibers (ACNF) were prepared from polyacrylonitrile (PAN)-based nanofibers using CO2 activation methods with varying activation process times. The surface and structural characteristics of the ACNF were observed by scanning electron microscopy and X-ray diffraction, respectively. N2 adsorption isotherm characteristics at 77 K were confirmed by Brunauer-Emmett-Teller and Dubinin-Radushkevich equations. As experimental results, many holes or cavernous structures were found on... -
Synthesis and electrochemical analysis of Pt-loaded, polypyrroledecorated, graphene-composite electrodes
Jiyoung Park, Seok Kim 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2013, Vol.14 No.2 8 117-120 (4 pages)
In this study, an electro-catalyst of Pt nanoparticles supported by polypyrrole-functionalized graphene (Pt/PPy-reduced graphene oxide [RGO]) is reported. The Pt nanoparticles are deposited on the PPy-RGO composite by chemical reduction of H2PtCl6 using NaBH4. The presence of graphene (RGO) caused higher activity. This might have been due to increased electro-chemically accessible surface areas, increased electronic conductivity, and easier charge-transfer at polymer-electrolyte interfaces,... -
Hyperinsulinism in a dog with beta-cell neoplasia (insulinoma)
Do Hyeon Yu , Jong Hyun Lee , Ru Hui Song , Dong Ho Noh , Ying Hua Li , Mi Jin Lee , A Ra Cho , Bum Seok Kim , Jin Ho P 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 4 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2009, 제 49권 제 4호 14 365-368 (4 pages)
