해군(海軍) 웹드라마 시청이 해군에 대한 친숙도, 신뢰도, 호감도, 인지도에 미치는 영향 -<출항 5분전>을 중심으로-

신준형 ( Shin¸ Junhyeong ),김종무 ( Kim¸ Jongmoo ) 커뮤니케이션디자인학회 2021 커뮤니케이션 디자인학연구 Vol.77 No.-

안보와 보안 등의 문제로 폐쇄적이었던 군대가 이제는 국민들의 지지와 신뢰를 얻기 위해 다양한 노력을 하고 있다. 그 중 하나로 해군에서는 새로운 콘텐츠인 웹드라마 <출항 5분전>을 제작하였다. 특히 웹드라마 <출항 5분전>은 실제 함정인 율곡이이함(DDG-992)을 배경으로 하고 있다는 점에 주목할 만하다. 본 연구는 해군에서 제작한 웹드라마 <출항 5분전> 시청이 해군에 대한 친숙도, 신뢰도, 호감도, 인지도에 미치는 영향이 어떠한지를 알아보고자 연령과 남녀 성비를 최대한 동일하게 맞춘 두 집단, 총 227명의 설문을 분석 하였다. 분석결과 해군 웹드라마 <출항 5분전> 시청 집단이 시청하지 않은 집단보다 모두 해군에 대한 친숙도, 신뢰도, 호감도, 인지도에서 더 높은 선호도를 보였다. 본 연구 결과는 향후 공공기관 웹드라마를 이용한 홍보에 있어 시청자의 태도를 이해하는데 도움을 제공할 것이다. Military unit which was closed due to issues such as national security & security, etc., is making diverse efforts to be supported and trusted by nation. As one of such efforts, Navy produced new contents, Web-Drama < 5 minutes before sailing >. Especially, Web-Drama < 5 minutes before sailing > is remarkable in that it adopts actual navy vessel DDG-992 as background. This study analyzed the question papers of 227 persons in 2 groups which were set to the most identical age & gender ratio in order to investigate the influence that Web-Drama < 5 minutes before sailing > produced by Navy has on familiarity, reliability, likeability and awareness of Navy. The analysis showed that the group which viewed Navy Web-Drama < 5 minutes before sailing > had higher preference in familiarity, reliability, likeability and awareness of Navy than the other group which did not. The result of this study will help understanding viewers for publicity which uses Web-Drama of public institution later.

Electrochemical fabrication of Fe-based binary and ternary phosphide cathodes for proton exchange membrane water electrolyzer

Kim, Junhyeong,Kim, Hyunki,Kim, Jooyoung,Kim, Jung Hwan,Ahn, Sang Hyun Elsevier 2019 JOURNAL OF ALLOYS AND COMPOUNDS Vol.807 No.-

<P><B>Abstract</B></P> <P>The development of high-performance gas diffusion electrodes is essential for the fabrication of efficient proton exchange membrane water electrolyzers (PEMWEs) and thus for clean hydrogen production. Herein, we electrodeposited Fe-based binary and ternary phosphides on porous carbon paper (CP) as a substrate and demonstrated that, under optimized deposition conditions (i.e. when the P content was maximum), amorphous FeCoP showed the highest intrinsic activity for hydrogen evolution in an acidic medium. This behavior was ascribed to appropriate electronic structure modification and the alloying effect. Further enhancement of hydrogen evolution performance was achieved by increasing the electrochemical surface area of FeCoP by using a porous Cu foam (CF) support. In a half-cell test, the FeCoP/CF/CP electrode featured an acceptably stable cathodic current of −10 mA/cm<SUP>2</SUP> at an overpotential of −125 mV. A PEMWE single cell with an FeCoP/CF/CP cathode exhibited a current density of 0.95 A/cm<SUP>2</SUP> at a cell voltage of 2.0 V, which is superior to or comparable with previously reported values. Thus, the developed electrode might be a promising alternative to Pt-based cathodes in practical PEMWE applications.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Fe-based transition metal phosphides were electrodeposited on porous carbon paper. </LI> <LI> FeCoP/carbon paper (CP) showed the highest HER intrinsic activity. </LI> <LI> The electrochemical surface area of FeCoP was increased by using a Cu foam support. </LI> <LI> PEMWE with a FeCoP/CF/CP cathode featured a current density of 0.95 A/cm<SUP>2</SUP> at 2.0 V. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Electrodeposited amorphous Co-P-B ternary catalyst for hydrogen evolution reaction

Kim, Junhyeong,Kim, Hyunki,Kim, Soo-Kil,Ahn, Sang Hyun The Royal Society of Chemistry 2018 Journal of Materials Chemistry A Vol.6 No.15

<P>The catalytic activity of amorphous Co-P-B catalysts electrodeposited on carbon paper (CP) for the hydrogen evolution reaction (HER) was investigated in aqueous 0.5 M H2SO4 electrolyte. Based on the measured double layer capacitance (<I>C</I>dl) and HER activity, it was found that the HER intrinsic activity exhibited volcano behavior when plotted as a function of the B/P ratio in the Co-P-B catalyst. It was revealed that based on the electronic structures of the elements, electron transfer among the three elements is a significant factor for enhancing the intrinsic activity for the HER. The highest activity was obtained with a B/P ratio of ∼1, where electron transfer among the three elements was maximized.</P>

차량간(V2V) 메시지 송신 보안 안전성 평가기술 연구

김준형(Junhyeong Kim),김아람(Aram Kim),김인수(Insu Kim),박재홍(Jaehong Park),신재곤(Jaekon Shin),조성우(Seongwoo Cho),엄성욱(Sungwook Eom) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11

본 논문은 차량단말기(OBU)가 BSM 메시지를 IEEE 1609.2, SAE J294.5/1 표준에 부합하는 보안을 적용해서 전송하는지 평가하는 차량간(V2V) 메시지 송신 보안 안전성 평가기술에 대해서 기술한다. 차량간(V2V) 메시지 송신 보안 안전성 평가시스템은 차량간(V2V) 메시지 송신 보안의 4가지의 성능 지표인 BSM 메시지 보안 항목 포함 여부, 이기종간 상호호환성만족 여부, 신뢰성 및 무결성 보장 여부, 차량단말기(OBU) 익명성 보장 여부에 대해서 평가하며 평가항목과 절차는 IEEE 1609.2, SAE 2945/1, SAE J2945/1A, FMVSS150 표준을 기반으로 개발되었다. 마지막으로 개발한 차량간 간 통신(V2V) 송신 보안 안전성 평가시스템을 통하여 Cohda Wireless의 차량단말기(OBU)인 MK5의 차량간(V2V) 메시지 송신 보안 안전성을 평가하였다.

三嘉지역의 鄕案入錄을 둘러싼 당파적 갈등

김준형(Kim Junhyeong) 한국사연구회 2009 한국사연구 Vol.147 No.-

This article is to describe the conflicts and split caused by the matter of registration on the hyangan(local leaders' list) with a focus on the disputes between political factions. In Samga, hyangan had been made several times until 1716, and in the process not a few conflicts had happened. In 1716, conflicts became so severe that hyangan was divided into two, being recorded by two different groups. That was why the final 'Samga hyangan' was completed in two volumes by the next generations. When the hyangan system was split into two groups, people who left(the part of B) outnumbered remaining people(the part of A). While suffering strifes, however, the B part gradually decreased in number whereas people increasingly joined the part of A. Looking into what family clans attended each part, at the A's side there were Samgoe faction(三槐堂派) of the Andong Gwon(安東權) family with some other families and at the B's part there were Jukgye faction(竹溪公派) of the Gimhae Kim(金海金) family and others. People from Saseong faction(司成公派) of the Chogye Jung(草溪鄭) family and some other families signed up their names on both sides, which shows us that even within the same family the family members made different choice about which hyangan line they would join. After Injo's Coup, with their power weaker, local aristocratic families in West Gyeongnam Province, who succeeded to the school of Nammyeong(南冥), mostly went to the group of Southerners(南人) and some to Westerners(西人) or Norons(老論). Likewise, in Samga, there was an early appearance of family members who decided their attitude as being Westerners and then the number of families having a Noron position was on the increase. Many other families made their position clear as being Southerners. Some families were divided into Norons' line and Southerners' line within the same family as the Eunjin Song(恩津宋) family did. With Southerners exceeding in number, a considerable number of families in Samga still didn't clearly show their political position toward the party factions. Such a situation of factional separation was reflected on hyangan: 'Samga hyanan' volume 1 was made by people from the Norons' line involving Samgoe faction of the Andong Gwon family and volume 2 was made by the Southerners involving Jukgye faction of the Gimhae Kim family. People of some families which did not belong to any political factions seemed to be introduced later into each group respectively in competition between factions. Norons had been dominating in politics since 18th century and in that situation Norons in Samga might have tried to extend its influence, and thus the number of those who joined the Norons' line must have increased. This is confirmed by the fact that the listed members on hyangan from Norons' line gradually increased in number while the Southerners decreased.

칼만 필터 기반 관성 측정 센서를 이용한 야구 스윙 궤적 분석 시스템 제안

김지한(Jihan Kim),김동욱(Donguk Kim),배준형(Junhyeong Bae),전수형(Suhyeong Jeon),박민희(Minhee Park),한병하(ByeongHa Han),이원준(Wonjun Lee),김진성(Jinseong Kim),한찬호(Chanho Han),김경규(KyoungKyoo Kim) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.6

목표물 추적 기능을 갖춘 촬영용 드론의 구현

최덕규(Duk-Kyu Choi),김의준(Ui-Jun Kim),이종현(Lee Jonghyeon),김승욱(Kim Seunguk),김창민(Kim Changmin),이창민(Lee Changmin),백기동(Paik Gidong),김상현(Kim Sanghyeon),김준형(Kim Junhyeong),명상기(Myoung Sanggi) 한국컴퓨터정보학회 2021 한국컴퓨터정보학회 학술발표논문집 Vol.29 No.1

Electrodeposited molybdenum sulfide as a cathode for proton exchange membrane water electrolyzer

Kim, Jung Hwan,Kim, Hyunki,Kim, Junhyeong,Lee, Hye Jin,Jang, Jong Hyun,Ahn, Sang Hyun Elsevier 2018 Journal of Power Sources Vol.392 No.-

<P><B>Abstract</B></P> <P>In this study, amorphous MoS<SUB>x</SUB> catalysts are fabricated on carbon paper using a simple one-step electrodeposition. Varying the deposition potential and time enables the simple control of the morphology and composition of MoS<SUB>x</SUB> catalysts, which affects their catalytic activity for hydrogen evolution reaction. The intrinsic activity based on their electrochemical surface area shows a significant relation with S atoms with higher binding energy. The lowest hydrogen evolving overpotential among the electrodeposited MoS<SUB>x</SUB> catalysts is −159.8 mV at a current density of −10 mA cm<SUP>−2</SUP> with a Tafel slope of 42.3 mV dec<SUP>−1</SUP>. The MoS<SUB>x</SUB> formed on carbon paper is directly implemented as a cathode in a proton exchange membrane water electrolyzer, and it displays acceptable cell performance. The following results demonstrate the potential for the use of amorphous MoS<SUB>x</SUB> catalysts as an alternative to noble metals in cathode of proton exchange membrane water electrolyzer.</P> <P><B>Highlights</B></P> <P> <UL> <LI> MoS<SUB>x</SUB> catalyst was electrodeposited on carbon paper (CP) varying potential and time. </LI> <LI> Catalytic activity was affected by ratio of higher binding energy S in MoS<SUB>x</SUB>/CP. </LI> <LI> MoS<SUB>x</SUB>/CP cathode was implemented to proton exchange membrane water electrolyzer. </LI> <LI> The electrolyzer demonstrated acceptable current density of 0.37 A cm<SUP>−2</SUP> at 1.9 V. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

A transition metal oxysulfide cathode for the proton exchange membrane water electrolyzer

Kim, Hyunki,Kim, Junhyeong,Kim, Soo-Kil,Ahn, Sang Hyun Elsevier 2018 Applied Catalysis B Vol.232 No.-

<P><B>Abstract</B></P> <P>In this study, the performance of transition metal oxysulfides as cathodes has been explored for a proton exchange membrane water electrolyzer (PEMWE). Simple electrodeposition and anion exchange methods provide facile control of the morphology and composition of Ni<SUB>y</SUB>Co<SUB>1-y</SUB>O<SUB>x</SUB>S<SUB>z</SUB> catalysts deposited as gas diffusion electrodes on carbon paper substrates. After sulfidation, the overpotential for the hydrogen evolution reaction (HER) was significantly reduced and the intrinsic activity of the HER showed volcano behaviors as a function of the composition and binding energy of S in the electrodes. The PEMWE employing such a cathode demonstrates a reasonable current density of 0.72 A/cm<SUP>2</SUP> at a cell voltage of 2.0 V. The results presented herein demonstrate that the non-noble catalyst can be adopted as a cathode in PEMWE operation.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Transition metal oxysulfides were electrochemically prepared on carbon paper. </LI> <LI> The highest intrinsic activity for HER was obtained at a S ratio of 0.25. </LI> <LI> The ratio of S atoms having higher binding energy affected HER intrinsic activity. </LI> <LI> PEMWE employing transition metal oxysulfide cathode showed reasonable performance. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Promising Strategy for Developing Novel Drug-Delivery Systems with Extracellular Vesicles and Astaxanthin

Junhyeong KIM,Young Jun JANG,Ki Soo PARK 한국생물공학회 2023 한국생물공학회 학술대회 Vol.2023 No.4