• 한국컴퓨터정보학회지
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• 제12권2호
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• pp.25-46
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• 2004

$\bullet$ Windows CE 5.0 $\triangleright$ 사용자 환경에 맞도록 수정/확장 $\triangleright$ 최적의 개발 생산성 제공 $\triangleright$ 네트워크/멀티미디어 기능 $\triangleright$ 안전된 운영체제 성능 $\triangleright$ Window CE 개발방법 $\triangleright$ 다양한 선택사항 $\triangleright$ 각각의 방법에 따른 장단점 $\triangleright$ 상황에 따른 방법의 결정

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.649-650
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• 2005

• Journal of Electrochemical Science and Technology
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• 제4권2호
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• pp.71-80
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• 2013

The study of methyl viologen ($MV^{2+}$) mediated oxygen reduction in electrolytic ethanol media possesses potential application in the electrochemical synthesis of hydrogen peroxide mainly due to the advantages of the much increased solubility of molecular oxygen ($O_2$) and high degree of reversibility of $MV^{2+/{\bullet}+}$ redox couple. The diffusion coefficients of both $MV^{2+}$ and $O_2$ were investigated via electrochemical techniques. For the first time, $MV^{2+}$ mediated $O_2$ reduction in electrolytic ethanol solution has been proved to be feasible on both boron-doped diamond and micro-carbon disc electrodes. The electrocatalytic response is demonstrated to be due to the radical cation, $MV^{{\bullet}+}$. The homogeneous electron transfer step is suggested to be the rate determining step with a rate constant of $(1{\pm}0.1){\times}10^5M^{-1}s^{-1}$. With the aid of a simulation program describing the EC' mechanism, by increasing the concentration ratio of $MV^{2+}$ to $O_2$ electrochemical catalysis can be switched from a partial to a 'total catalysis' regime.

• KEPCO Journal on Electric Power and Energy
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• 제4권1호
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• pp.1-7
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• 2018

Objective signs are everywhere that the stationary energy storage market is growing up quickly. The use of distributed resources such as solar photovoltaics and electric vehicles are expanding at a rapid pace, creating technical challenges for the distribution system that will require energy storage and a new generation of software to address. This paper is intended for distribution utility managers and executives and makes the following points: ${\bullet}$ Utility-integrated (as opposed to merely grid-connected) energy storage projects represent a distinct, new wave of industry growth that is just getting underway and is required to manage distributed energy resources moving forward. ${\bullet}$ Utilities and the energy storage industry have important roles to lower risk in adopting this technology - thereby enabling this wave of growth. ${\circ}$ The industry must focus on engineering energy storage for adoption at scale - including the creation and support of software open standards -both to drive down costs and to limit technology and supplier risk for utilities. ${\circ}$ Utilities need to take a program-based, rather than a project- based, approach to this resource to best balance cost and risk as they procure and implement energy storage. By working together to drive down costs and manage risk, utilities and their suppliers can lay the energy storage foundation for a new, more digital distributed electricity system.

• BMB Reports
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• 제45권2호
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• pp.114-119
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• 2012

Salsolinol (1-methyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline) is a compound derived from dopamine metabolism and is capable of causing dopaminergic neurodegeneration. Oxidative modification of neurofilament proteins has been implicated in the pathogenesis of neurodegenerative disorders. In this study, oxidative modification of neurofilament-L (NF-L) by salsolinol and the inhibitory effects of histidyl dipeptides on NF-L modification were investigated. When NF-L was incubated with 0.5 mM salsolinol, the aggregation of protein was increased in a time-dependent manner. We also found that the generation of hydroxyl radicals (${\bullet}OH$) was linear with respect to the concentrations of salsolinol as a function of incubation time. NF-L exposure to salsolinol produced losses of glutamate, lysine and proline residues. These results suggest that the aggregation of NF-L by salsolinol may be due to oxidative damage resulting from free radicals. Carnosine, histidyl dipeptide, is involved in many cellular defense processes, including free radical detoxification. Carnosine, and anserine were shown to significantly prevent salsolinol-mediated NF-L aggregation. Both compounds also inhibited the generation of ${\bullet}OH$ induced by salsolinol. The results indicated that carnosine and related compounds may prevent salsolinol-mediated NF-L modification via free radical scavenging.

• Current Research on Agriculture and Life Sciences
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• 제31권2호
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• pp.101-107
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• 2013

This study was undertaken to determine free radical scavenging capacity and oxidative DNA damage protecting activity of methanol extract of red tea stem. The extract was subjected to assess their antioxidant potential using various in vitro systems such as $DPPH^{\bullet}$, $ABTS^{{\bullet}+}$, super oxide and nitric oxide free radicals and it exhibited $IC_{50}$ values of $68.88{\pm}1.1$, $12.08{\pm}0.65$, $404.38{\pm}1.6$, $93.6{\pm}2.7{\mu}g/mL$ respectively. Red tea extract also showed ferric reducing ability (FRAP) with 2606.85 mmol Fe (II)/g of extract. Furthermore, Methanol extract of red tea stem showed significant DNA damage protecting activity in concentration dependent manner against $H_2O_2+UV$ induced photolysis on pUC19 plasmid DNA. Results of this study showed that the methanol extract of Red Tea stem has strong antioxidant potential along oxidative DNA damage protecting capacity that would be the significant sources of natural antioxidants, which might be helpful in preventing the progress of various oxidative stress generated diseases. Further study is necessary for isolation and characterization of the active antioxidants, which may serve as a potential source of natural antioxidant.

• 한국자원식물학회지
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• 제1권1호
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• pp.23-32
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• 1988

전남지역에서 3대 명산중의 하나인 모후산 지역에 분포되어 있는 한약자원식물을 수집 및 분류하여 약용작물로 재배하기 위한 기초자료로 활용하고자 이 지역의 한약자원 식물의 분류를 조사한 결과는 다음과 같았다. $\bullet$ 모후산에 분포되어 있는 한약자원 식물은 58과 230종으로 분류되었다. $\bullet$ 분류수종중 초본류는 질경이, 차조기, 쇠무릎, 우엉, 사삼, 반하, 하수오, 결명자, 용담초, 맥문동, 하고초, 산삼, 도라지, 둥글레, 참마, 칡, 대계등 17종과 대본류는 인동초, 참으아리, 방기, 목퉁, 엄나무, 구기자, 산수유, 밤나무, 매화, 인진호, 희첨, 지유, 초오등 13종이 한약재료로 많이 사용되는 것들이었다.

• 한국항공우주학회지
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• 제42권3호
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• pp.213-220
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• 2014

본 연구에서는 헬리콥터의 간섭유동장을 고려한 발사체의 궤적예측 프로그램을 개발하였다. 헬리콥터의 간섭유동장 해석에는 엑츄에이터 디스크 모델이 적용된 압축성 비점성 해석자를 이용하였다. 발사체의 궤적 해석에는 6자유도 운동방정식과 대안적 형태의 수정된 질점 운동방정식을 사용하였다. 헬리콥터 주위 유동 해석은 ROBIN(ROtor Body INteraction) 모델을 이용하여 검증하였다. Sierra International 탄과 105mm 포탄의 궤적을 이용해 운동 해석 모듈을 검증하였다. 헬리콥터에서 발사된 발사체의 궤적 예측에는 Sierra International 탄과 HYDRA 70 로켓을 이용하였다.

• 한국게임학회 논문지
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• 제9권5호
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• pp.43-52
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• 2009

본 연구는 게임 물리 엔진을 실시간 물리 기술의 관점으로 고찰한다. 실시간 물리 기술이란 물리 시뮬레이션 기술을 게임에 적용하기 위해서 간략화 하는 기술을 말한다. 조사 대상으로 상용 물리 엔진인 Havok Physics SDK와 NVIDIA PhysX SDK를 선택하였고, 오픈 소스기반 물리 엔진인 ODE와 Bullet을 선택하였다. 그 결과 물리 엔진은 강체 역학, 변형체 시뮬레이션, 유체 시뮬레이션을 구현하고 있었고, 실시간 시뮬레이션을 위해서 수식의 간략화, 충돌 처리의 효율성 재고 등 소프트웨어 측면의 기술과 멀티 코어 CPU의 이용, PPU, GPU 활용 등 병렬처리 하드웨어 기술을 사용하고 있었다.

• 한국지하수토양환경학회지:지하수토양환경
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• 제21권3호
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• pp.58-63
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• 2016

The study examined the level of heavy metal contamination by dividing military rifle shooting ranges into the three areas, i.e firing, trajectory, and target. The target area was found to be contaminated at a level higher (Cu 845 mg/kg, Pb 30,487 mg/kg) than the Worrisome Level of Soil Contamination (hereinafter referred to as the “Worrisome Level”) The trajectory area was predicted to be free from contamination, but it did indicate contamination although it was pretty much lower (Cu 23 mg/kg, Pb 99 mg/kg) than Worrisome Level. This is attributed to the contamination spread when rearranging the soil of the target area during the maintenance of the shooting range. The firing area was also predicted to be free from heavy metal contamination, but the results analyzed indicated a contamination higher (Cu 201 mg/kg, Pb 2,286 mg/kg) than Worrisome Level. This is attributed to the fragments of the broken bullet scattering due to the pressure generated as the bullet leaves the muzzle. An examination of heavy metal contamination in the discharge area as well as gutters to prevent the intrusion of rain water from perimeter revealed a high level of contamination (Cu 298 mg/kg, Pb 6,497 mg/kg), which makes it necessary to take measures.