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Morphologies and surface properties of cellulose-based activated carbon nanoplates
Seulbee Lee, Min Eui Lee, Min Yeong Song, Se Youn Cho, Young Soo Yun, Hyoung-Joon Jin 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 5 32-38 (7 pages)
sulfate functional groups introduced during the manufacturing process. In addition, pyrolyzed CNPs (CCNPs) showed more effective chemical activation behavior compared with MCC-induced carbonaceous materials. The activated CCNPs exhibited a microporous carbon structure with a high surface area of 1310.6 m2/g and numerous oxygen heteroatoms. The results of this study show the effects of morphology and the surface properties of cellulose-based nanomaterials on pyrolysis and the activation process. -
Adsorption Behaviors of Noxious Gases On Chemically Surface-terated Activated Carbons
Soo-Jin Park, Jun-Sik Shin 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2003, Vol.4 No.1 6 31-35 (5 pages)
20세기는 과학기술 발달이 꾸준히 발전한 시대였으며 이와병행하여 전쟁의 양상 및 무기의 체계에 커다란 혁명을 가져왔다. 특히, 최근 문제가 되고 있으며 가난한 나라의 핵무기로 비유되는 생화학 무기는 값싸게 제작할 수 있고, 이를 소지한 채 잠입하며 살포할 수 있으며, 무색,무취하며 탐지하기가 어렵고, 극미량으로도 인간에게 해를 끼칠 수 있을 뿐 아니라 한번 오염되면 스스로 번식 확산하기 때문에 인류에 막대한 피해를 야기할 수 있어 그 심각성은 일반의 예상을 뛰어 넘는다. -
Effect of Two-step Surface Modification of ACtivated CARbon on the Adsorption Characteristics of Metak Ions in Wastewater I.Equilibrium and Batch Adsorptions
Geun Il Park, Jae Kwang Lee, Seung Kon Ryu, Joon Hyung Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2002, Vol.3 No.4 6 219-225 (7 pages)
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NO gas sensing ability of activated carbon fibers modified by an electron beam for improvement in the surface functional group
Mi-Seon Park, Sangmin Lee, Min-Jung Jung, Hyeong Gi Kim, Young-Seak Lee 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 3 19-25 (7 pages)
Activated carbon fiber (ACF) surfaces are modified using an electron beam under different aqueous solutions to improve the NO gas sensitivity of a gas sensor based on ACFs. The oxygen functional group on the ACF surface is changed, resulting in an increase of the number of non-carbonyl (-C-O-C-) groups from 32.5% for pristine ACFs to 39.53% and 41.75% for ACFs treated with hydrogen peroxide and potassium hydroxide solutions, respectively. We discover that the NO gas sensitivity of the gas sensor... -
Effect of surface modification of carbon felts on capacitive deionization for desalination
Jong-Ho Lee, Hong-Joo Ahn, Donghwan Cho, Jeong-Il Youn, Young-Jig Kim, Han-Jun Oh 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 4 93-100 (8 pages)
respectively. The potassium hydroxide (KOH) modified carbon felt exhibited high Brunauer-Emmett-Teller (BET) surface areas and large pore volume, and oxygencontaining functional groups were increased during KOH chemical modification. However, the BET surface area significantly decreased by nitric acid (HNO3) chemical modification due to severe chemical dissolution of the pore structure. The capability of electrosorption by an electrical double-layer and the efficiency of capacitive deionization... -
Role of Angiotensin II and Nitric Oxide in the Rat Paraventricular Nucleus
Eun-KyoungYang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2001, Vol.5 No.1 6 41-46 (6 pages)
To investigate the mutual relationship between angiotensin II (Ang II) and nitric oxide (NO) in paraventricular nucleus (PVN), Ang II receptor type Ia (AT1A), type Ib (AT1B), endothelial constitutive nitric oxide synthase (ecNOS), and neuronal constitutive nitric oxide synthase (ncNOS) mRNA levels of rat PVN were measured after unilateral carotid artery ligation. AT1A and AT1B mRNA levels were markedly elevated 6 hrs after unilateral carotid artery ligation. Losartan injection (10μg/0.3μl)... -
Two Types of Voltage-dependent Outward Potassium Currents in Smooth Muscle Cells of Rabbit Basilar Atery
TongMookKang, InsukSo, DaeYongUhm, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 15 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.2 7 169-183 (15 pages)
We have investigated the two types of voltage-dependent outward potassium (K) currents, i.e. delayed rectifier K current (IK(V)) and 'A-like' transient outward K current (Ito) with patch-clamp technique in single smooth muscle cells (SMCs) isolated from rabbit basilar artery, and investigated the characteristics of them. The time-courses of activation were well fitted by exponential function raised to second power (n2) in IK(v) and fourth power (n4) in Ito. The activation, inactivation and... -
精神科 入院患者의 自殺에 對한 몇 가지 臨床的 考察
李相換, 趙斗英 대한신경정신의학회 신경정신의학 7 Pages
대한신경정신의학회 신경정신의학 1981, 제 20권 제 1호 4 36-42 (7 pages)
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백서태자두개관에서 분리한 세포의 약리학적 및 생화학적 특성에 관한연구
한남수(Nam-Soo Han), 정동균(Dong-Kyun Cheong), 모리 마사카주(Masakazu，Mori) 대한약리학회 대한약리학잡지 16 Pages
대한약리학회 대한약리학잡지 1990, 제 26권 제 2호 12 193-208 (16 pages)
Transforming growth factor β(TGF-β)는 많은 세포의 증식, 분화 및 여러가지 세포기능에 대해 다양한 조절기능을 갖고 있는 multifunctional polypeptide로 알려져 있다. TGF-β는 골기질에 상당량 존재하며 골조직 대사에 대해 광범위한 영향을 나타낸다. 여러가지 연구결과에 의해 기질과 연관된 TGF-β는 골세포 자체의 산물로 여겨지고 있으나 골조직세포군중 어느종류의 세포가 TGF-β를 형성하는지에 대해서는 논란이 되고 있다. 본 연구는 TGF-β를 형성하는 골조직세포를 규명하고 TGF-β가 서로 다른 세포들에 미치는 영향을... -
Effect of Preconditioning Ischemia on Endothelial Dysfunction Produced by Ischemia-Reperfusion in Rabbit Coronary Artery
Suh, Suk-Hyo, Park, Yee-Tae, Kim, Woong-Heum, Kim, Ki-Whan 대한생리학회 대한생리학회지 10 Pages
대한생리학회 대한생리학회지 1995, 제 29권 제 1호 5 51-60 (10 pages)
This study was designed to test whether or not 1) ischemia-reperfusion attenuates endothelium-dependent relaxation of coronary arteries and 2) preconditioning protects the arterial endothelium from ischemia-reperfusion injury. In anesthetized open chest rabbits, branches of the left circumflex artery were exposed to different combinations of the experimental conditions; ischemia (15 minutes), ischemia (15 minutes)-reperfusion (10 minutes), preconditioning ischemia, and pre-conditioning fellowed... -
Electrophysiological Study on Medullospinal Tract Cells Related to Somatosympathetic Reflex in the Cat
Kim, Sang-Jeong, Goo, Yong-Sook, Kim, Jun 대한생리학회 대한생리학회지 14 Pages
대한생리학회 대한생리학회지 1992, 제 26권 제 1호 8 75-88 (14 pages)
not. Between these two groups, rostro-caudal coordinate of the distribution from obex [4.7±0.2 (mean S.E.) mm, 4.1 0.1 mm], depth from dorsal surface (5.5±0.2mm, 4.9±0.1mm and conduction velocity (9.9±1.7m/sec, 16.7±1.9 m/sec) were significantly different (p<0.05). In spontaneously discharging group, characteristics of rostral and caudal groups were significantly different and we demonstrated that cells in rostral group mediate somatosympathetic reflex. From these results, we conclude that... -
체성신경계(體性神經系)의 기계적(機械的) 생리학(生理學)- 기계적전달(機械的傳達)과 체성신경원(體性神經元)의 초발국소흥분(初發雇所興奮) -
곽재희(Kwak, Je-Hi) 대한생리학회 대한생리학회지 16 Pages
대한생리학회 대한생리학회지 1967, 제 1권 제 1호 1 7-22 (16 pages)
인간(人間)의 감각(感覺), 운동(運動), 사고등(思考等)에 직접관여(直接關與)하는 체성신경원(體性神經元)이 인체내(人體內)에 있어서 단일세포동물(單一細胞動物)과 비체성신경원(非體性神經元)과 같이 각종(各種)의 자극(刺戟)에 직접응(直接應)하므로써 기능적(機能的) 활동(活動)을 개시(開始)한다는 한연(漢然)한 예상하(豫想下)에서 말초(末梢)에서는 혹종(或種)의 통소(痛素)를, 중추(中樞)에서는 어떤 묘(妙)한 화학적(化學約)인 흥분전달물질(興奮傳達物質)을 탐구(探求)하고 있으며 말초(末梢)의 통흥분시발(痛興奮始發)과... -
Bacterial Community and Diversity from the Watermelon Cultivated Soils through Next Generation Sequencing Approach
Mahesh Adhikari, Sang Woo Kim, Hyun Seung Kim, Ki Young Kim, Hyo Bin Park, Ki Jung Kim, Youn Su Lee 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 3 521-532 (12 pages)
Knowledge and better understanding of functions of the microbial community are pivotal for crop management. This study was conducted to study bacterial structures including Acidovorax species community structures and diversity from the watermelon cultivated soils in differ- ent regions of South Korea. In this study, soil samples were collected from watermelon cultivation areas from various places of South Korea and microbiome analysis was performed to analyze bacterial communities in- cluding... -
Characterization of Pyrenophora tritici-repentis (Tan Spot of Wheat) Races in Baltic States and Romania
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 2호 5 133-139 (7 pages)
this information for better disease management and breeding wheat for tan spot resistance. We characterized 231 single spore isolates from Latvia (n = 15), Lithuania (n = 107), and Romania (n = 109) for Ptr ToxA and Ptr ToxB genes using two genes specific primers. A subset (139) of 231 isolates were further characterized for their race structure by inoculating them individually on tan spot wheat differentials set. Majority (83%) of the 231 isolates amplified Ptr ToxA gene suggesting prevalence... -
Transcriptome Analysis of Induced Systemic Drought Tolerance Elicited by Pseudomonas chlororaphis O6 in Arabidopsis thaliana
한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2013, 29권 2호 11 209-220 (12 pages)
Root colonization by Pseudomonas chlororaphis O6 induces systemic drought tolerance in Arabidopsis thaliana. Microarray analysis was performed using the 22,800- gene Affymetrix GeneChips to identify differentiallyexpressed genes from plants colonized with or without P. chlororaphis O6 under drought stressed conditions or normal growth conditions. Root colonization in plants grown under regular irrigation condition increased transcript accumulation from genes associated with defense, response to... -
Ribgrass Mosaic Tobamovirus Occurred on Chinese Cabbage in Korea
한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 4호 5 328-339 (12 pages)
ring spot virus. coat protein gene of RMV-Ca1, sized 473 nucleotides, encoded 158 amino acid residues. Nucleotide identity of RMV-Ca1 CP gene was 96.4% with RMV-Shanghai (GenBank accession No. of AF185272) from China and 96.0% with RMV-Impatiens (GenBank accession No. of AM040974) from Germany. Identity of amino acids between RMV-Ca1 and the two RMV isolates was 96.8%. Specific three primers were selected for rapid and easy genetic detection of RMV using Virion Captured (VC)/ RT-PCR method. -
Impact of single metal oxide and coal ash on secondary ultrafine particle generation through SO2 and NO2 heterogeneous reaction
Ru-Jiao Song, Zi-Xiang Xu, Joo-Chang Park, Li-Hua Xu, Hyung-Taek Kim 한국열환경공학회 열환경공학 19 Pages
한국열환경공학회 열환경공학 2020, 제 15권 1호 4 28-46 (19 pages)
Particulate matter research is of great significance in solving atmospheric environment problems. The heterogeneous reaction of mixed gas on different mineral oxides and coal ash was studied based on a laboratory-built aerosol generating reactor. The product formed on particles was investigated by ion chromatography (IC). SO2 and NO2 could react on oxides to form secondary particles and the order of reactivity of mineral oxides under laboratory reaction conditions is: Al2O3>MgO>CaO>>SiO2, Fe2O3.... -
마이크로파 가열을 이용한 β-SiC 분말 합성
허석, 김수룡, 김영희, 권우택 한국열환경공학회 열환경공학 6 Pages
한국열환경공학회 열환경공학 2016, 제 13권 1호 6 39-44 (6 pages)
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열분해 촉매로서의 천연 벤토나이트 개질 방법이 LDPE 열분해 오일의 생성속도와 비점분포에 미치는 영향
김성수, 박성열, 김진걸 한국열환경공학회 열환경공학 9 Pages
한국열환경공학회 열환경공학 2013, 제 10권 2호 1 1-9 (9 pages)
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Interconnected meso/microporous carbon derived from pumpkin seeds as an efficient electrode material for supercapacitors
Mayakrishnan Gopiraman, Somasundaram Saravanamoorthy, Seung-Hyun Kim, Ill-Min Chung 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 10 73-81 (9 pages)
and X-ray diffraction analyses. The presence of heteroatoms (O and N) in the carbon materials was confirmed by X-ray photoemission spectroscopy. High resolution transmission electron microscopic images and selected area diffraction patters further revealed the porous structure and amorphous nature of the prepared electrode materials. The resultant porous carbons (PS-600, PS-700, PS-800, and PS-900) were utilized as electrode material for supercapacitors. To our delight, the PS-900 demonstrated a... -
Extraction and characterization of lignin from black liquor and preparation of biomass-based activated carbon therefrom
Daeyeon Kim, Jinsil Cheon, Jeonghoon Kim, Daekyun Hwang, Ikpyo Hong, Oh Hyeong Kwon, Won Ho Park, Donghwan Cho 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 14 81-88 (8 pages)
ts brittle surfaces, the increased thermal stability, and the carbon assay with increasing the carbonization temperature. The scanning electron microscopic images and the Brunauer-Emmett-Teller result indicate that the steam-activated carbon has the specific surface area of 1718 m2/g, which is markedly greater than the carbonized lignin. This study reveals that biomassbased activated carbon with highly porous structure can be produced from costless black liquor via steam-activation process. -
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)
double-layer capacitors (EDLC) due to their high specific surface areas (SSA), stability, and ecological advantages. In order to make high-energy-density ACs for EDLC, petroleum pitch (PP) precarbonized at 500?1000°C in N2 gas for 1 h was used as the electrode material of the EDLC after KOH activation. As the pre-carbonization temperature increased, the SSA, pore volume and gravimetric capacitance tended to decrease, but the crystallinity and electrode density tended to increase, showing a... -
Activating needle coke to develop anode catalyst for direct methanol fuel cell
Young Hun Park, Ui-Su Im, Byung-Rok Lee, Dong-Hyun Peck, Sang-Kyung Kim, Young Woo Rhee, Doo-Hwan Jung 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 7 47-52 (6 pages)
suggest that an activated KOH needle coke container has the lowest onset potential and the highest degree of catalyst activity among all commercial catalysts. Through an analysis of the CO stripping voltammetry, we found that KOH activated catalysis showed a 21% higher electrochemical active surface area (ECSA), with a value of 31.37 m2/g, than the ECSA of deactivated catalyst (25.82 m2/g). The latter figure was 15% higher than the value of one specific commercial catalyst (TEC86E86). -
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)
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 (16.1 at% oxygen, 2.7 at% nitrogen, and 1.6 at% sulfur), and high aspect ratios (>100). These unique properties led to good electrochemical performance as supercapacitor electrodes. A specific capacitance of ~438.5 F g?1 was achieved at a scan rate of 2 mV s?1, and a capacitance of 176 F g?1 was...
