Poly(vinylbenzyl chloride-glycidyl methacrylate)/Polyethylene Composite Anion Exchange Membranes for Vanadium Redox Battery Application

Park, Min-A,Shim, Joonmok,Park, Se-Kook,Jeon, Jae-Deok,Jin, Chang-Soo,Lee, Ki Bong,Shin, Kyoung-Hee Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.6

Anion exchange membranes for a vanadium redox flow battery (VRB) were prepared by pore-filling on a PE substrate with the copolymerization of vinylbenzyl chloride (VBC) and glycidyl methacrylate (GMA). The ion exchange capacity, water uptake and weight gain ratio were increased with a similar tendency up to 65% of GMA content, indicating that the monomer improved the pore-filling degree and membrane properties. The vanadium ion permeability and open-circuit voltage were also investigated. The permeability of the VG65 membrane was only $1.23{\times}10^{-7}\;cm^2\;min^{-1}$ compared to $17.9{\times}10^{-7}\;cm^2\;min^{-1}$ for Nafion 117 and $1.8{\times}10^{-7}\;cm^2\;min^{-1}$ for AMV. Consequently, a VRB single cell using the prepared membrane showed higher energy efficiency (over 80%) of up to 100 cycles compared to the commercial membranes, Nafion 117 (ca. 58%) and AMV (ca. 70%).

Simultaneous Gas Chromatography-Mass Spectrometric Determination of Total and Individual Phthalic Esters Utilizing Alkaline Hydrolysis and Silyl Derivatization Technique

Kim, Min-Seon,Li, Dong-Hao,Shim, Won-Joon,Oh, Jae-Ryoung,Park, Jong-Man Korean Chemical Society 2007 Bulletin of the Korean Chemical Society Vol.28 No.3

Environmentally important phthalic esters have been analyzed by GC-MS in terms of individual phthalic esters or total phthalic esters directly or after derivatization. Derivatization improves the chromatographic characteristics of the highly polar phthalic esters. This study focused on the GC-MS determination of the total phthalic esters and the individual phthalic esters simultaneously. The phthalic esters were hydrolyzed to phthalate and corresponding alcohols in 1 M NaOH solution at 90 oC for 30 min followed by extraction with ethyl acetate after acidifcation. The phthalic acid and alcohols were simultaneously silyl derivatized using bis(trimethylsilyl)trifluoroacetamide (BSTFA) to their corresponding silyl ester and ethers in the mixture of 60% acetone and 40% ethyl acetate at room temperature within 30 min. Because of the high reactivity of BSTFA with the phthalic acid and alcohols effective silyl derivatization was possible simultaneously. GC-MS analysis of the silyl derivatives of phthalic acid and alcohols was performed. The total phthalic ester content was estimated from the analytical result of phthalic silyl ester, while the individual phthalic ester was quantified from the analytical results of alcoholic silyl ethers. This technique was applied to spiked tab water and real seawater samples from the Lake Shihwa in Korea. The results were checked against the results from the direct GC-MS analysis of the phthalic esters and reasonable recoveries with high sensitivity were achieved. The recoveries were higher than 75% with low relative standard deviation (below 10%).

韓·日 王權 神話의 三機能 體系 考察

심재민 서강대학 지역발전연구소 1996 지역발전연구 : 서강전문대 Vol.2 No.-

ジョルジュㆍヂュメジルはその『神話と敍事詩』第一卷の「ロ-マの最初四王」についての章において, 印歐語族の世界においては, 最古の諸時代, 最初の諸王がその三機能體系によってまとめられていることを論じている. つまりギリシアのへシオドスが傳える黃金の種族から鐵の種族への五種族の變遷の神話は, べルナンの硏究によれば, 第一(主權)機能の二つの側面, それに第二(戰士)機能の二つの側面, それに第三(生産者)機能をこれら五種族がそれぞれ代表していることが明らかである. またスチィグㆍウイカンデルの硏究によると, フイダウシのつたえるイランの王朝の交替も, 第一, 第二, 第三の機能を順順に表している. このような印歐神話の領域における成果は, 韓ㆍ日兩國の神話を硏究するにおいて極めて多くの示唆に富んでいる. これによって韓國神話と日本神話と印歐神話との間に大幅な構造的一致ばかりではなく, 細部にわたる類似の存在がだんだんと明らかになってきており, 兩者の間に何等かの歷史的關係-恐らくアルタイ系支配者文化を媒介としての韓國から日本への流入-が想定されるに至っている. このような硏究の現段階から見て, いま紹介した印歐神話における最初の諸王や最初の諸部族の三機能的構想が, 韓日神話においても再び見出されるか否かを檢討していくことにする. だだ私はこの硏究において三つの点をあらかじめ斷っておく. その一つは, 日本神話も考察の對象に入れるこである. 第二は, 日本神話にかんしては, 神代の物語ではなく, 『古事記』中卷の諸天皇に集中することにする. 第三は, 單に機能的三分體系ばかりではなく, 空間的三分體系も大幅に考慮していることである.

韓·日 兩國神話에 보이는 通過祭儀 考察

沈載珉 서강정보대학 1992 論文集 Vol.11 No.-

韓日兩國の古代文獻のなかに, 通過儀禮の片鱗や殘影を發掘し, その全體像を再編成しようとする作業には, すくなくとも二つの困難がつきまとっていたように思う. 困難の一つは, 兩國の神話資料のなかには, 通過儀禮そのものの形姿を直截に映し出すデ一タがきわめて乏しいということである. この條件はいきおいこの分野の硏究者の關心を, 異文化圈の關聯儀禮に向けさせることとなり, そこから比較神話論的な方法の導入が必至なものとなったのである. 第二の困難は, しからばこうした比較神話の觀點にもとづいて, われわれは兩國神話のなかのどのような部分に, またどのような基準にしたがつて, 通過儀禮の現象を推定することができるのか, という問題である. この二つのことがらは, 結局は同じ一つの困難をあらわしているのである. この二つの問題を解決してゆくためには, 未開社會や東西の神話世界について民族誌的, 人類學的知見を廣く採集し, 比較して, 通過儀禮の一般的特徵ともいうべきものをそこから抽出しなければならない. 一定の共同體において, 通過祭儀を迎える若者たちは, その關門を通過するのに諸種の非日常的な儀禮を身に引き受けさせられるが, そのような通過儀禮のなかに, 次の五つの神話的表象がみとめられる. 1. 入信すべき者が幽冥の別世界に入ること. 2. 入信すべき者の試練的, 淨化的な苦行. 3. 入信すべき者の儀禮的な死. 4. 入信すべき者の儀禮的な復活. 5. 入信者が新しい人格的內容を獲得. つまり 通過儀禮は, 隔離, 試練, 再編入という一般的な神話表象によって構成されている. 本稿では, 韓日兩國神話の親綠性を糾明するため, 行爲傳承である神話表象を中心に通過祭儀がもっているいくつかのモ-チブを調べて見た.

CBD으로 제작한 In:Cd_(1-x)Zn_(x)S/CdTe 태양전지의 전기적 특성에 관한 연구

심재선,송우창,방영근,김남석,임창민,장현 三陟大學校 2006 論文集 Vol.39 No.-

CdS thin films have been widely used a window material in heterojunction solar cells. In solar cell systems, where CdS thin films have been proved to be useful, partial substitution of Zn for Cd increases the optical window of the hetero-junction and also the diffusion potential. In this thesis, effects of the thickness of indium films and the annealing temperature on structural, optical and electrical properties of chemically deposited CdZnS films for the efficiency of the Cd_(1-x)Zn_(x)S/CdTe solar cells were investigated. Cd_(1-x)Zn_(x)S films were grown by chemical bath deposition (CBD), which is a very attractive method for low-cost and large-area solar cells. The open circuit voltage of Cd_(1-x)Zn_(x)S/CdTe solar cells increased due to reduced electron affinity difference between Cd_(1-x)Zn_(x)S and CdTe films. However, the conversion efficiency of Cd_(1-x)Zn_(x)S/CdTe solar cell decreased because of the higher series resistance(R_(s)) than CdS/CdTe solar cell. The series resistance and conversion efficiency of Cd_(1-x)Zn_(x)S/CdTe solar cell were improved by using indium-doped Cd_(1-x)Zn_(x)S films as window layer. Cd_(1-x)Zn_(x)S/CdTe solar cells fabricated with optimal conditions exhibited V_(oc)=630mV, J_(sc)=38.89mA/㎠ , FF=0.53, and η=13.2%

STWS를 이용한 유도전동기의 토오크 전류측정용 관측기 설계에 관한 연구

심재선,임윤희,김민형 三陟大學校 1997 論文集 Vol.30 No.1

This paper propose a method, observer design for torque current measurement of induction motors, by using single term walsh series(STWS). If the torque currents of induction motors need to know for induction motors driving correctly, it is observed by proposed observer directly. Since the observer which is presented in this paper has an algebraic form, it is more attractive than the conservative others.

프로농구 관중의 충성도와 경기장 유인 요인과의 관계

심재영,이창민,윤석민 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

This study was to investigate the relationship between consuming behaviors and the enticing factors of sports arena. The independent variables of the study was royalty. The dependent variables were enticing factors including performance, status of reputation, facilities, and marketing factors. The subjects of the study were 470 randomly selected spectators who were present at 3 games, held in Wonju. Seoul, and Anyang among pro-basketball season games. The apparatus to collect data was 'the enticing factors of sports arena' and 'consuming behaviors' questionnaires(Cho Kwan-Hyung, 2000) which were revised and complemented based on four areas in spectator orientation(Marcum & Greenstein. 1985) and enticing factors of sports arena(Cronin & Taylor, 1992). Chi-square and One-way ANOVA were used to analyze the data by SPSS 10.0 fur Windows(p<.05). The results of analyzing the relationship between royalty and the enticing factors of sports arena led to following conclusions. Performance, status of reputation and facilities according to cheering team orientation, that was one of the elements in devoting level, were significantly different Furthermore, there was significant difference in status of reputation factor depended on cheering athlete orientation. However, enticing factors of sports arena according to membership and out cheering were not significantly different.

그리스 비극과 신화에 대한 니체의 해석

심재민 한국연극교육학회 2002 연극교육연구 Vol.7 No.-

Nietzsches Forschung der griechischen Trago¨die tritt gegen jene moderne Kultur auf, in der das Vertrauen auf den Mythus verlorengegangen ist. So ergibt sich Nietzsches Geburt der Trago¨die eben aus seiner heftigen Kritik an die moderne Kultur, die nichts anderes als "den Verlust der mythischen Heimat, des mythischen Mutterschoosses" bedeutet. Anhand der griechischen Trago¨die begreift der Zuschauer die 'dionysische Weisheit' und kriegt die Kraft zur U¨berwindung der Leiden und Schmerz im Leben. D.h. die Zusammenwirkung der beiden Elemente, also des dionysischen Rausches durch die Musik des Dithyrambus einerseits und der apollinischen Verbildlichung durch den Mythus andererseits ermo¨glicht dem Mythus die metaphysiche Bedeutung und dem Zuschauer die dionysische Weisheit. Dies gelangt, wie gesagt, zu einem ganz anderen Resultat als die Theorie von Aristoteles, der in seiner Poetik einen 'ethischen Lo¨sungsweg' fu¨r die Fragen innerhalb der Trago¨die pointiert. Nietzsche beharrt dabei auf der Ansicht, dass sich das menschliche Dasein und die Welt aufgrund des tragischen Mythus nur als ein 'a¨sthetisches Pha¨nomen' rechtfertigen lassen. Nietzsche interpretiert schlieβlich mit seiner 'Artisten-Metaphysik' die griechische Trago¨die und weiterhin sowohl kritisiert die moderne Kultur als auch sucht seinerseits den Richtungspfeil fu¨r die Kultur der Zukunft. Deshalb gewinnt der Mythus seine Relevanz als eine Alternative zur Orientierung an eine neue Zukunft vor dem Hintergrund der Ambivalenz der Moderne und der Tradition. So zieht man aus Nietzsche eine Lehre, dass auch fu¨r unsere Realita¨t die Kunst des Theaters ihre neue Bedeutung eben in ihrer Wurzel der mythischen Kraft gewinnen kann.

전통적 음모희극의 한계 및 새로운 희극 유형 : 렛싱의 『민나 폰 바른헬름 Minna von Bamhelm』 연구 Die Grenze der traditionellen Intrigenkomo¨die und neuer Komo¨dientypus

심재민 한국뷔히너학회 2004 뷔히너와 현대문학 Vol.22 No.-

Es stellt sich im Stuck Minna von Barnhelm ein Problem, das das Schema der Intrigenkomodie nicht aufzulosen vermag, wahrend Tellheim gegenuber der politischen und militarischen Situation aufgrund seines ernsthaften Charakters handelt. Der Ursprung dieses Problems findet sich vor allem im Verkennen Minnas, als Intrigantin, von Tellheims Konflikt. Deshalb mu0 der Grenzpunkt ihrer Rolle notwendigerweise sich darin enthullen, daB die als eine MaBregel gegen seinen Konflikt gedachte Durchfiihrung der Intrige eine unsichere Losung zur Folge hat. Minna verengte Tellheims Haltung als einen Versuch der innerlichen Losung seines widersprechenden luflerlichen Zustandes von Anfang an bloB auf den Standpunkt der Liebe zwischen dem Liebhaber und der Geliebten. Deswegen konnte Minna dieses Stuck nach dem Schema der Intrigenkomodie verlaufen lassen. SchIieDlich ist es so, daB sich die Grenze der Erkenntnis Minnas uber Tellheims Konflikt gerade als die Grenze der Formel der Intrigenkomodie in diesem Stuck zeigt. Der von dieser Grenze abweichende Teil ist unmittelbar als eine eigene Methode des Versuchs von Lessing mit einer neuen Form der Komodie anzusehen. Und zwar mull vor allem als neue Forderung des Lustspiels die Veranderung des Wirklichkeitsbezugs als bedeutungsvoll erkannt werden. Es zeigt sich vor allem das Element des riihrendes Lustspiels als eine verinderte Komodienform in diesem Stiick, das besonders auf den Charakter Tellheims im Gegensatz zu dem Schema der mit Intrigen gestalteten satirischen Typenkomodie autinerksam macht. Schlie5lich kann man so sagen, dal3 Lessing dieses Sttick als eine wahre Komodie zu gestalten versuchte gema5 seiner eigenen Kombdienauffassung aufgrund des ernsthaften Charakters des Protagonisten. Es ist niimlich so zu sehen, dal3 die Synthese von den Elementen der traditionellen Komodien und den Abweichungen von jenen in diesem Sttick zur Gestaltung der wahren Komodie beitrtlgt. Lessing findet die wahre Komodie eigentlich in der Verbindung Lachen und Riihren. Auf dem Standpunkt dieser Komodienauffassung stehend versucht Lessing folglich in Minna yon Barnhelm auf den Widerspruch damaliger politisch-sozialer Realitat anzuspielen, um den Willen zur Reform dieser Wirklichkeit zu demonstrieren.

지도자의 리더십이 배구선수들의 성원만족에 미치는 영향

심재영,이창민,이경수 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

This study aimed at exploring what influence the trainers' leadership has on volley bell members' satisfaction, and in order to figure it out, the experiment of stratified random sampling was proceeded to 20 high schools teams, 7 university teams, and 5 industrial teams as objects for this study after selecting the population in the whole high schools, universities, and industrial players. Results was collected as follows. 1) Volley ball members' satisfaction according to the statistical characteristics of population It was shown that Members' satisfaction was estimated most high in male players for gender, industrial teams for team type, players under 3 years for playing experience and main players for playing position, However there is no significant difference among them. 2) Influence of leadership types on members' satisfaction Leadership classified as Training, Directing, Social Supporting, Democratic Behavior, Authoritative Behavior has positive correlation with the factors of satisfaction of members, such as task performance, social interaction, and coaching behavior, and has negative correlation with positive rewarding behaviors, Social Supporting among leadership types has much influence on players' task performance, and Training and Directing in social interaction and coaching behavior.