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Influence of Nitrogen moieties on CO2 capture of Carbon Aerogel
Da-Hee Jeon, Byung-Gak Min, Jong Gab Oh, Changwoon Nah and Soo-Jin Park 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.1 9 57-61 (5 pages)
specific surface area and micropore volume were analyzed by N2 adsorption-desorption isotherms at 77 K. The CO2 adsorption capacity was investigated by CO2 adsorption-desorption isotherms at 298 K and 1 bar. Melamine containing N-doped CAs showed a high nitrogen content (5.54 wt.%). The prepared N-doped CAs exhibited a high CO2 capture capacity of 118.77 mg/g (at resorcinol/melamine = 1:0.3). Therefore, we confirmed that the CO2 adsorption capacity was strongly affected by the nitrogen moieties. -
Characterization of the Effects of Relative Humidity and Bed-depth on Co₂Capture for Maximizing the Utilization Rate of Soda Lime Sorbent
Il-Hoon Cho, Guen0Il Park, Joon-Hyung Kim, Taek-Sung Hwang, Mi- 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2001, Vol.2 No.2 5 113-119 (7 pages)
최근 전 세계적으로 대기오염 수위가 높아지면서, 이에 자연환경과 보건에 미치는 영향을 고려한 환경친화적인 기술로 Co₂,CFC등의 지구온난화 가스 및 SOx, NOx 등의 산화물 처리 연구가 지속적으로 개발되어왔다. 특히 지구온난화 현상의 주범이며 기후변화협약에 따른 탄소세 추진 등으로 세계적 초미의 관심 대상인 Co₂를 보다 더 효율적으로 처리하여 청정가스로 배출되도록 하는 새로운 환경산업 기술개발이 요구되는 시점이다. -
An enhanced immunochromatographic strip test using colloidal gold nanoparticle-labeled dual-type N proteins for detection of antibodies to PRRS virus
Ji Eun Yu, In-Ohk Ouh, Hyeonjeong Kang, Hye-young Lee, Kwang-Myun Cheong, In-Soo Cho, Sang-Ho Cha 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 7 519-527 (9 pages)
Porcine reproductive and respiratory syndrome (PRRS) is recognized as one of the most important infectious diseases causing serious economic loss in the swine industry worldwide. Due to its increasing genetic diversity, a rapid and accurate diagnosis is critical for PRRS control. The immunochromatographic strip test (ICST) is a rapid and convenient type of immunoassay. In this study, an on-site immunochromatographic assay-based diagnostic method was developed for detection of PRRS virus... -
Activation of Vestibular Neurons Projecting to Autonomic Brain Stem Nuclei Following Acute Hypotension in Rats
MyoungAeChoi, WonKiWang, DongOkChoi, MinSunKim, ByungRimPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.3 3 133-140 (8 pages)
The purpose of the present study was to elucidate the possible involvement of the medial vestibular nucleus (MVN) and inferior vestibular nucleus (IVN) following acute hypotension in the vestibulo- autonomic reflex through vestibulosolitary or vestibuloventrolateral projections. Acute hypotension- induced cFos expression was assessed in combination with retrograde cholera toxin B subunit (CTb) tract tracing. After injection of CTb into the solitary region, CTb-labeled neurons were located... -
The Current Status and Future Outlook of Quantum Dot-Based Biosensors for Plant Virus Detection
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 2호 1 85-92 (8 pages)
Enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR), widely used for the detection of plant viruses, are not easily performed, resulting in a demand for an innovative and more efficient diagnostic method. This paper summarizes the characteristics and research trends of biosensors focusing on the physicochemical properties of both interface elements and bioconjugates. In particular, the topological and photophysical properties of quantum dots (QDs) are discussed, along... -
물 분해가스를 이용한 미분탄 혼소 연소기술 연구
신미수, 장동순, 이용국, 김용주 한국열환경공학회 한국열환경공학회 학술대회지 5 Pages
한국열환경공학회 한국열환경공학회 학술대회지 2015년 추계 4 26-30 (5 pages)
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Evaluation of Ash Deposition Behavior and Fine Particle Formation from Combustion of Low-rank Coal Impregnated with Molasses in DTF
Zi-Xiang Xu, Joo-Chang Park, Hyung-Taek Kim 한국열환경공학회 열환경공학 9 Pages
한국열환경공학회 열환경공학 2019, 제 14권 2호 6 40-48 (9 pages)
In recent years, many countries have invested enormous efforts to tackle increasingly harsh environmental problems, especially the greenhouse effect. The addition of biomass into coal is regarded as a promising technology to mitigate CO2 emissions. However, the costs related to retrofitting injection systems and unstable combustion inhibit this option. Therefore, this thesis developed a two-in-one fuel that impregnates molasses into the holes of low-rank coal(LRC), which can be directly applied... -
폴리염화비페닐의 초임계수 산화에 미치는 유분의 영향에 관한 연구
송병주, 김종국, 김경심, 홍희택 한국열환경공학회 열환경공학 9 Pages
한국열환경공학회 열환경공학 2008, 제 5권 1호 1 1-9 (9 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)
Porous materials play a vital role in science and technology. The ability to control their pore structures at the atomic, molecular, and nanometer scales enable interactions 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... -
The impact fracture behaviors of CFRP/EVA composites by drop-weight impact test
Sun-Ho Go, Hong-Gun Kim, Hee-Jae Shin, Min-Sang Lee, Hyun-Gyung Yoon, Lee-Ku Kwac 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 4 23-32 (10 pages)
A drop weight impact test was conducted in this study to analyze the mechanical and thermal properties caused by the changes in the ratio of carbon fiber reinforced plastic (CFRP) to ethylene vinyl acetate (EVA) laminations. The ratios of CFRP to EVA were changed from 10:0 (pure CFRP) to 9:1, 8:2, 6:4, and 5:5 by manufacturing five different types of samples, and at the same time, the mechanical/thermal properties were analyzed with thermo-graphic images. As the ratio of the CFRP lamination was... -
Mechanical interfacial adhesion of carbon fibers-reinforced polarized-polypropylene matrix composites: effects of silane coupling agents
Woong-Ki Choi, Hyun-Il Kim, Shin-Jae Kang, Young Sil Lee, Jong Hun Han, Byung-Joo Kim 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 12 79-84 (6 pages)
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Flexural properties, interlaminar shear strength and morphology of phenolic matrix composites reinforced with xGnP-coated carbon fibers
Jong Kyoo Park, Jae Yeol Lee, Lawrence T. Drzal, Donghwan Cho 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 5 33-38 (6 pages)
In the present study, exfoliated graphite nanoplatelets (xGnP) with different particle sizes were coated onto polyacrylonitrile-based carbon fibers by a direct coating method. The flexural properties, interlaminar shear strength, and the morphology of the xGnP-coated carbon fiber/phenolic matrix composites were investigated in terms of their longitudinal flexural strength and modulus, interlaminar shear strength, and by optical and scanning electron microscopic observations. The results were... -
Effect of nitrogen doping and hydrogen confinement on the electronic properties of a single walled carbon nanotube
Bashir Mohi Ud Din Bhat, Jehangir Rashid Dar, Pratima Sen 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 4 29-32 (4 pages)
This paper addresses the effect of dopants on the electronic properties of zigzag (8, 0) semiconducting single walled carbon nanotubes (SWCNTs), using extended H?ckel theory combined with nonequilibrium Green’s function formalism. Through appropriate dopant concentrations, the electronic properties of SWCNTs can be modified. Within this context, we present our ongoing investigation on (8, 0) SWCNTs doped with nitrogen. Quantum confinement effects on the electronic properties of the SWCNTs have... -
Nanoporous graphene oxide membrane and its application in molecular sieving
S. Mahmood Fatemi, Masoud Arabieh, Hamid Sepehrian 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 4 183-191 (9 pages)
Gas transport through graphene-derived membranes has gained much interest recently due to its promising potential in filtration and separation applications. In this work, we explore Kr-85 gas radionuclide sequestration from natural air in nanoporous graphene oxide membranes in which different sizes and geometries of pores were modeled on the graphene oxide sheet. This was done using atomistic simulations considering mean-squared displacement, diffusion coefficient, number of crossed species of... -
A review of elemental mercury removal processing
Kyong-MinBae, Byung-JooKim, Soo-JinPark 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2011, Vol.12 No.3 1 121-130 (10 pages)
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Carbon Doping of TiO2 for Visible Light Photo Catalysis - A review
K. Palanivelu, Ji Sun Im, Young-Seak Lee 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2007, Vol.8 No.3 6 214-224 (11 pages)
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Determination on the component arrangement of a hybrid rain garden system for effective stormwater runoff treatment
Precious Eureka D. Flores, Franz Kevin F. Geronimo, Jawara Christian P. Alihan, Lee-Hyung Kim 한국습지학회 한국습지학회지 8 Pages
한국습지학회 한국습지학회지 2017, Vol.19 No.3 2 271-278 (8 pages)
Low impact development (LID) technology has been recently applied for the treatment of nonpoint source pollutants. Rain garden is one of the widely used LIDs since it utilizes various mechanisms such as biological and physico-chemical treatment to reduce pollutants. However, problem such as clogging has been one of the issues encountered by the rain garden that do not undergo constant maintenance. Therefore, this research was conducted to develop and determine the component arrangement of a rain... -
반포화 순환 여과식 인공습지에 의한 도로 강우유출수의 실증처리 연구
박기수, 김영철 한국습지학회 한국습지학회지 12 Pages
한국습지학회 한국습지학회지 2017, Vol.19 No.3 1 259-270 (12 pages)
본 연구는 실증규모의 반포화 순환식 인공습지에서 도로 강우유출수를 처리하여 습지의 성능분석, LID 기능 및 다른 LID-BMP 시설과의 처리효율을 비교하였다. 강우시 모니터링을 바탕으로 연구대상 습지의 저감효율을 산정한 결과 TSS 저감효율은 평균 92%, COD, TN, TP는 각각 평균 63%, 36%, 75%로 분석되었으며 다른 시설과 직접적인 비교 는 불가능하지만 SA/CA 비율에 따른 오염물질 저감효율을 분석한 결과 연구대상 시설의 SA/CA 비율이 낮았음에도 불구하고 유사한 수준의 효율을 보였다. 또한, 전체 강우유출수의 18%만을... -
Characteristics and Fate of Stormwater Runoff Pollutants in Constructed Wetlands
Jawara Christian Alihan, Marla Maniquiz-Redillas, Jiyeon Choi, Precious Eureka Flores, Lee-Hyung Kim 한국습지학회 한국습지학회지 8 Pages
한국습지학회 한국습지학회지 2017, Vol.19 No.1 4 37-44 (8 pages)
Nonpoint source (NPS) pollution continues to degrade the water quality. NPS pollutants signals high concerns against a sustainable environment. Low impact development (LID) is the leading management practice which regulates and treats stormwater runoff especially in highly impervious urban areas. Constructed wetlands are known to have efficient removal capability of NPS pollutants. Likewise, these LID facilities were intended to maintain the predeveloped hydrologic regime through series of... -
Transport of nonpoint source pollutants and stormwater runoff in a hybrid rain garden system
Precious Eureka D. Flores, Marla C. Maniquiz-Redillas, Franz Kevin F. Geronimo, Jawara Christian P. Alihan, Lee-Hyung Kim 한국습지학회 한국습지학회지 7 Pages
한국습지학회 한국습지학회지 2016, Vol.18 No.4 17 481-487 (7 pages)
본 연구는 도시 강우유출수 처리를 위한 하이브리드 빗물정원 시스템을 개발하고자 수행되었으며, Pilot scale 모니터 링을 통하여 시스템 내의 서로 다른 구성요소간의 효율을 검증하였다. 유입수는 국내·외 도로강우유출수의 농도를 고 려한 인공강우유출수를 이용하여 수행하였다. 모니터링 결과 하이브리드 빗물정원은 시설 내 저류 80%, 지하수의 침 투 15%로 유입수의 약 95% 저감되는 것으로 나타났다. 이는 ST의 저류 및 PB와 IT의 침투 기작이 물순환 효과에 기 여한 것으로 판단된다. 또한 오염물질 저감효율을 산정한 결과,... -
PC 인터페이스를 이용한 LCD 구동회로의 PLD 설계
01승호, 이주현 한국조명전기설비학회 照明·電氣設備學會論文誌 9 Pages
한국조명전기설비학회 照明·電氣設備學會論文誌 2002, Vol.16 No.1 67-75 (9 pages)
제안한 LCD 구동회로 부분은 schematic capture, AHDL, VHDL 등으로 설계하여 시뮬레이션을 수행하고 ALTERA 사의 EPM7192SQC160-15 PLD를 사용하여 구현하였다. PC 인터페이스 부분은 MS-Visual C++ 6.0으로 프로그래밍 하였다. 한편, 제안한 구동회로를 테스트 보드를 구성한 후에 하드웨어 동작 검증을 수행하여 그 효용성을 입증하였다. 본 논문에서 제안한 구동회로를 현재 시판중인 마이크로프로세서를 사용하는 타 업체의 구동회로와 비교한 결과는 구동회로의 작동 편이성, 제작시 소요되는 비용 등에서 우수함을 나타내었다. -
VHDL을 이용한 다차원 디지털 필터의 PLD 구현
정재길, Jeong. Jae-Gil 배재대학교 공학연구소 공학논문집 : 배재대학교 14 Pages
배재대학교 공학연구소 공학논문집 : 배재대학교 2004, Vol.6 No.1 111-124 (14 pages)
Programmable Logic Device (PLD)를 이용한 시스템 구현이 일반화 되어 가는 추세이다. 또한 설계 방식도 Schematic Capture 방식 대신에 보다 효율적이고 표준화된 방식인 Hardware Description Language (HDL)의 활용으로 변화하고 있다. 본 연구에서는 지난 연구 결과를 확장하여 활용영역을 넓혀 가고 있는 다차원 디지털 필터를 PLD를 이용하여 효율적으로 구현할 수 있는 구조를 연구하여 제안하였다. 다차원 디지털 필터링 알고리즘의 효율적인 구현을 위하여 알고리즘 분해방법을 이용하였다. 알고리즘 분해방법은 다차원 디지털...
