Electrochemical Characteristics of Home-Made Bipolar Plate and Its Relationship with Fuel Cell Performance

권영국,이재광,지덕진,이재영,Kwon, Young-Kook,Lee, Jae-Kwang,Ji, Duk-Jin,Lee, Jae-Young The Korean Electrochemical Society 2009 한국전기화학회지 Vol.12 No.1

본 연구에서는 탄소성형 분리판의 물리화학적, 전기화학적 특성을 분석하여 수소 및 개미산연료 전지의 성능에 미치는 영향을 알아보았다. 기존 기계가공 탄소분리판과 탄소복합소재 탄소성형 분리판의 접촉저항, 부식특성, 소수성을 비교 평가하였다. 특히, 현재 연구개발 중인 탄소복합소재 성형분리판의 경우 계면접촉저항이 기계가공 분리판보다 1.5배 높게 나타났으며, 내식성 실험에서는 산에 취약하여 분리판 표면이 거칠어지고 결정성이 감소하였다. 연료전지의 성능은 분리판의 계면접촉저항에 크게 영향을 받았으며, 계면저항이 적은 기계가공 분리판이 수소 및 개미산 연료 전지에서 높은 성능을 나타냈다. The effect of physico-electrochemical properties of carbon bipolar plate(BPP) on hydrogen and formic acid fuel cell performance has been investigated. BPP made of conventional graphite and carbon fiber composite were compared with the factors of interfacial contact resistance (ICR), corrosion behaviours, and hydrophobicity. Among them, the ICR of carbon fiber composite BPP has 50% higher than conventional graphite and the surface of carbon fiber composite BPP became rougher due to weaker corrosion resistance. Fuel cell performance was strongly dependent of ICR value of carbon bipolar plate.

열처리 조건이 다른 Poly(lactic acid)(PLA) 직물의 물성 연구

권영국,정우영,손희정,길명섭,Kwon, Young-Kuk,Jung, Woo-Young,Son, Heui-Jeong,Khil, Myung-Seob 한국섬유공학회 2011 한국섬유공학회지 Vol.48 No.2

The effect of heat setting and subsequent dyeing on the mechanical properties of poly(lactic acid)(PLA) fabrics was investigated, including the amount of pilling and "Year resistance. The PLA fabric exhibits significantly reduced tear strength as well as pilling and wear resistance as the heat setting temperature and time increase. While the tensile strength decreased above a setting temperature of $120^{\circ}C$, surprisingly the tensile strength of the set PLA fabric did increase slightly as the setting temperature was increased to values below $120^{\circ}C$, After dyeing, the other mechanical properties, pilling, and wear resistance of the PLA fabrics exhibited similar behaviors to the heat setting treatment. From these results, the heat treatment conditions of PLA fabric should be carefully decided to avoid the deteriorating effects on PLA fabrics.

안전사고 분류체계에 관한 연구

권영국(Youngguk Kwon),박계형(Kyehyung Park),김찬오(Chano Kim) 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5

매년 발생하고 있는 안전사고에 대한 심각성은 강조되고 있지만 그에 대한 체계적인 관리 및 예방을 하기 위해서는 안전사고 분류체계 및 안전사고 조사에 관한 체계에 대해 표준화가 이루어져야 근본적이 해결을 할 수 있기에 이를 연구하고 제안하였다.

전자기 유도 에너지 하베스팅 기반의 에너지 자립형 센서에 대한 연구

권영국(Y. K. Kwon),최명훈(M. H. Choi),이정훈(J. H. Lee),김영광(Y. G. Kim),이수진(S. J. Lee) 한국생산제조학회 2018 한국생산제조시스템학회 학술발표대회 논문집 Vol.2018 No.5

UMS(Unified Management Sensor)를 이용한 작업자 안전 및 모터 관리 연구

권영국(Young-Kuk Kwon),이진용(Jin-Yong Lee),최명훈(Myounghoon Choi) 대한전자공학회 2017 대한전자공학회 학술대회 Vol.2017 No.6

이벤트 행사장의 안전요인에 대한 관광객의 만족도와 재방문의사에 관한 실증분석 -`2003 Bexco 인체 신비전을 중심으로-

권영국 ( Kwon Yeong Gug ),주현식 ( Joo Hyun Sik ),박현지 ( Park Hyeon Ji ) 대한관광경영학회 2003 觀光硏究 Vol.18 No.1

This study investigated the safety factors considered by visitors of 2003 Bexco The Anatomical Exhibition of Real Human in Korea and to analyze the correlation between the safety factors and the demographic characteristics of the visitors. This study analyzed safety factors centering on visitor satisfaction and intention to re-visit among Korean visitors to 2003 Bexco The Anatomical Exhibition of Real Human in Korea Safety facility, Hygiene status, Emergency facility, and Disabled/Elderly people related Facility were used as safety factors. The results showed following findings. 1) The female group was significantly satisfied with all factors (Safety facility, Emergency facility, Disabled/Elderly people related Facility) than the male group. 2) The less educated the visitors are, the more satisfied with the safety factors (Safety facility, Hygiene status, Disabled/Elderly people related Facility) they are. This certain consistent trend can be found in other research (e.g. Park, 1999; Park et al., 1999; Kwon et al., 2000). 3) There is significantly different satisfaction with safety among age groups. The youngest group (29 or less) is the most satisfied with every safety factors. 3) The more visitors are satisfied with Safety facility and Hygiene status, the stronger they have intention to re-visit.

관광정보 웹사이트 환경이 만족, 신뢰, 충성도에 미치는 영향

권영국(Kwon Young-Kuk),박현지(Park Hyun-Jee),이선로(Lee Sun-Ro) 한국관광레저학회 2003 관광레저연구 Vol.15 No.2

고려 초기 兵部의 기능과 지위

권영국(Kwon Young-Kook) 한국사학회 2007 史學硏究 Vol.- No.88

고려 초기의 兵部는 태봉과 신라의 병부를 계승한 것이었다. 신라의 병부는 법흥왕대에 일반 행정과 군사 업무를 분리시키면서 여러 관부 중에서 가장 먼저 설치되었다. 이때의 병부는 비록 漢式 명칭이지만 후에 수용되는 六典制下의 병부와는 무관한 신라 고유의 것이었다. 신라 이래 병부의 기능은 군사행정이었다. 한편 軍令업무는 국왕이 친히 장악하였으나 태봉대에 이르러 정복지역의 확대로 군령 업무가 크게 늘어나면서 徇軍府가 설치되어 군령업무를 담당하였다. 이로써 군정을 담당한 병부와 군령을 담당한 순군부가 군사 기구의 두 축을 이루게 되었다. 신라시대에 처음 설치된 병부는 執事部와 더불어 서열 1, 2위를 차지하였고, 摩震 때까지 2위의 지위를 유지하였으나 태봉대에 이르러 4위의 지위로 하락하였다. 이러한 서열의 변화는 국가체제가 재정비되는 태봉대에 內奉省의 기능과 기구가 확대되면서 정무기구의 하나로 부상하고, 또 군령 기구로서 순군부가 새로 설치되는 정치적 변화 속에서 나타난 것이었다. 태조 이래 병부의 지위는 성종대 이전까지 그대로 유지되다가 3성 6부를 중심으로 하는 6典制가 본격적으로 수용되면서 그 지위가 크게 격하되었다. 그동안 광평성ㆍ내봉성 등 정무기구와 병렬적인 위치에 있던 병부는 상서성 아래 6부의 하나로 편제되었던 것이다. 그러나 6부의 순서가 唐의 吏, 戶, 禮, 兵, 刑, 工과 달리 吏ㆍ兵ㆍ戶ㆍ刑ㆍ禮ㆍ工으로서 병부가 2위의 자리에 위치하였다. 이는 신라시대 이래 정치기구에서 병부가 중요한 위치를 차지해온 전통이 반영된 것으로 고려 6부제의 특징이라 생각된다. The Ministry of Military Affairs(兵部) in early Goryeo Dynasty(高麗) succeeded that of Taebong Dynasty(泰封) and Silla Dynasty(新羅). In the period of King Bubheung(法興王) in Silla Dynasty, the Ministry of Military Affairs was established first in the course of dividing military affairs from administrative affairs. Even though the Ministry of Military Affairs was named as Chinese style, it was not related with that of Six-Cords System(六典制) which was accepted later. It was native to Silla Dynasty. Since Silla Dynasty, the Ministry of Military Affairs took charge of the affairs of military administration(軍政業務). Before Taebong Dynasty, kings were personally in charge of the affairs of military command(軍令業務). In Taebong Dynasty, the affairs of military command were increased according to the expansion of governing areas. Sunkunbu(徇軍府) was established and took charge of the affairs of military command. So, the Ministry of Military Affairs(兵部) and Sunkunbu made up the two posts of the military office. The Ministry of Military Affairs established in Silla Dynasty was ranked as the fist or second position, and was kept up as the second position in Majine Dynasty(摩震). However, it fell down to the fourth position in Taebong Dynasty. This change of the rank was caused by the rising of Naebongsung(內奉省) which became the office of political affairs(政務機構) and the establishment of Sunkunbu which was the office of military command(軍令機構). The rank of the Ministry of Military Affairs was maintained from Taejo(太祖), the first king of Goryeo to King Sungjong(成宗). It fell down with the adoption of the Three Ministries and Six Departments System(3省6部制) after King Sungjong,. Then, the Ministry of Military Affairs which was standing in a row with Guangpeungsung(廣評省) and Naebongsung(內奉省) was organized into one of Six Departments(6部) under the Secretariat of State Affairs(尙書省). However, the order of Six Departments(6部) in Goryeo Dynasty was different from that of Six Departments in Tang Dynasty(唐). The Ministry of Military Affairs in Goryeo Dynasty was ranked second. : The Ministry of Personnel Affairs(吏部), The Ministry of Military affairs(兵部), The Ministry of Taxation Commission(戶部), the Ministry of Punishments(刑部), the Ministry of Rites(禮部), the Ministry of Public Works(工部). This was the reflection of the tradition that the Ministry of Military Affairs had taken up the important position in the central government organizations(中央政治機構) since Silla Dynasty. And this showed the unique characteristic of Three Ministries and Six Departments System in Goryeo Dynasty.

English let alone construction: A discourse-oriented nonderivational approach

권영국(Young-Kook Kwon),김종복(Jong-Bok Kim) 경희대학교 언어정보연구소 2022 언어연구 Vol.39 No.3

The expression let alone, starting to be used as an NPI (negative polarity item) in the 1760s, displays peculiar syntactic, semantic, and pragmatic properties that are quite unpredictable from general grammar rules. This paper investigates these grammatical properties further while referring to the attested data extracted from corpora like COCA (Corpus of Contemporary American English). It also discusses several challenges to the postulation of clausal sources and application of move-and-delete operations. The paper then sketches a discourse-oriented construction approach that could offer a more feasible account for its general as well as idiomatic properties. In particular, it shows how the construction in question is interrelated with other related constructions such as parenthetical subordinating clauses modifying a nonveridical situation as well as ellipsis constructions that require a parallelism condition between an ellipsis clause and its antecedent clause.

열감지지수를 활용한 신체온도의 예측

권영국 ( Young G. Kwon ),Jerry D. Ramsey 한국감성과학회 1998 감성과학 Vol.1 No.2