Prediction of Thermoelectric Properties by Analyzing the Electronic Structure of AgTlTe (초)

오민욱,박수동,김봉서,이희웅 대한금속재료학회 ( 구 대한금속학회 ) 2008 대한금속재료학회 학술대회 개요집 Vol.2008 No.1

적층 평판형 SOFC 모듈에서 소결 시 전해질 층의 휨 현상

오민욱,구신일,신효순,여동훈,Oh, Min-Wook,Gu, Sin-Il,Shin, Hyo-Soon,Yeo, Dong-Hun 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.3

A layered planer SOFC module was designed from planar-type SOFC. It was prepared by multi-layered ceramic technology. To form the cathode and the anode in the layered structure, reliable channels should be made on the both side of electrolyte perpendicularly. However, monolithic SOFC using multi-layered ceramic technology hasn't been studied another group, and the warpage of electrolyte in the channel, also, hasn't been studied, when electrode is printed on the electrolyte. In this study, the channels are prepared with electrode printing, and their warpage are evaluated. In the case of YSZ without electrode, the warpages are nothing in the limit of measurement using optical microscope. The warpage of 'YSZ-NiO printed' increases than that of 'NiO printed', and also, the case of 'double electrode printed' is similar to 'YSZ-NiO printed'. It is thought that, in the printed electrolyte, the warpage is related to the difference of the sintering behavior of each material.

언제나, 다큐의 시간들

오민욱 부산독립영화협회 2020 부산독립영화작가론 인디크리틱 Vol.17 No.-

Al-Ti-Cr 합금계 L1_2기지 합금의 800℃에서의 상안정성

오민욱,이재경,오명훈,위당문 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.1

Relationship between the phase stability and the composition of L1_2-based Ti-Al-Cr alloys at 800℃ was investigated. It was found that the yield strength of Al-21Ti-23Cr and Al-21Ti-15Cr alloys with Ti-lean composition after exposure at 800℃showed a relatively small increase compared with that of alloys homogenized at 1150℃. However, yield strength of al-30Ti-15Cr alloy with Ti-rich composition after exposure at 800℃ increased very remarkably. The difference in strength increment after exposure at 800℃ was due to the partial decomposition of L1_2 phase in Al-21Ti-23Cr and Al-21Ti-15Cr alloys, and the complete decomposition of L1_2 phase in al-30Ti-15Cr alloy. Therefore, alloys with Ti-lean composition were expected more suitable for light heat resistant and oxidation resistant coating material with respect to stability of L1_2 phase. It was also revealed that the phase decomposition of L1_2 phase resulted from the shift of L1_2 phase region to Al-rich corner in Al-Ti-Cr phase diagram with decreasing temperature.

자유의 주체와 주인의 성별: 19세기 초 쿠바 노예 서사에 재현된 권력과 젠더 담론

오민욱 한국스페인어문학회 2022 스페인어문학 Vol.- No.103

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에스트리덴티스모 산문에 나타난 근대성 기획의 모순과 라디오의 재현

오민욱 한국외국어대학교 중남미연구소 2022 중남미연구 Vol.41 No.1

Stridentism(Estridentismo), a representative Mexican avant-garde movement in the 1920s, tries to form an aesthetic discourse that can lead Mexico's modernization by representing it's present. Changes brought by science and technology were an important indicator of Mexico's modernization, and the artists of Stridentism represent its images in their works. Among these, radio is the technology that has had the greatest influence on Stridentism's works in terms of themes and formal innovations. This study is based on Stridentism's modernity project and perspective on radio, in La Señorita Etcétera (1922) and Magnavoz 1926 (1926), which are representative narrative works of this movement. First, this study analyzes the perspective of the artists on the communication through scientific technology by analyzing the change in the images of radio represented in each work. Second, it shows that the aspect of radio’s representations in these works not only reflects the various historical contexts of this media in Mexican society, but also reveals the contradiction inherent in the modernity projects of the stridentist artists. 1920년대 멕시코의 대표적 아방가르드 운동인 에스트리덴티스모(Estridentismo)는 근대화 과정에 있던 멕시코의 현재를 재현하여 당대의 국가 정체성 기획을 이끌 수 있는 문예 담론을 제시하고자 했다. 과학 기술의 도입으로 인한 변화는 멕시코가 근대화되고 있는 중요한 지표였고, 에스트리덴티스모 작가들은 이를 혁신적인 형식으로 작품에 재현했다. 이 중 라디오는 에스트리덴티스모 작품의 형식 혁신과 주제 선정에 많은 영향을 끼친 기술 중 하나였다. 본 연구는 에스트리덴티스모의 근대성 기획과 라디오에 대한 관점을 기반으로 이 운동의 대표적 서사 작품인 『아무개 아가씨(La Señorita Etcétera)』(1922)와 『확성기 1926 (Magnavoz 1926)』(1926)에 라디오가 재현되는 양상을 분석한다. 이를 통해 각각의 작품에 나타난 라디오 이미지의 차이를 비교하여 과학 기술과 의사소통의 관계에 관한 에스트리덴티스모의 관점이 어떻게 변화하였는지 분석한다. 두 번째로는 이 작품들에 라디오가 재현된 양상이 이 매체에 대한 다양한 역사적 맥락을 반영할 뿐만 아니라 에스트리덴티스모 작가들의 근대성 기획에 내재한 모순을 드러냄을 제시한다.

Dielectric Properties and Microstructure of Sintered BaTiO3 Fabricated by Using Mixed 150-nm and 80-nm Powders with Various Additives

오민욱,강재원,여동훈,신효순,정대용 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.66 No.7

Recently, the use of small-sized BaTiO3 particles for ultra-thin MLCC research has increased as amethod for minimizing the dielectric layer’s thickness in thick film process. However, when particlessmaller than 100 nm are used, the reduced particle size leads to a reduced dielectric constant. Theuse of nanoparticles, therefore, requires an increase in the amount of additive used due to theincrease in the specific surface area, thus increasing the production cost. In this study, a novelmethod of coating 150-nm and 80-nm BaTiO3 powders with additives and mixing them togetherwas employed, taking advantage of the effect obtained through the use of BaTiO3 particles smallerthan 100 nm, to conveniently obtain the desired dielectric constant and thermal characteristics. Also, the microstructure and the dielectric properties were evaluated. The additives Dy, Mn, Mg,Si, and Cr were coated on a 150-nm powder, and the additives Dy, Mn, Mg, and Si were coated on80-nm powder, followed by mixing at a ratio of 1:1. As a result, the microstructure revealed grainformation according to the liquid-phase additive Si; additionally, densification was well realized. However, non-reducibility was not obtained, and the material became a semiconductor. When theamount of added Mn in the 150-nm powder was increased to 0.2 and 0.3 mol%, insignificant changesin the microstructure were observed, and the bulk density after mixing was found to have increaseddrastically in comparison to that before mixing. Also, non-reducibility was obtained for certainconditions. The dielectric property was found to be consistent with the densification and the grainsize. The mixed composition #1-0.3 had a dielectric constant over 2000, and the result somewhatsatisfied the dielectric constant temperature dependency for X6S.

범전동-낙관(樂觀)의 역사가 소멸시킨 풍경들

오민욱 오늘의 문예비평 2018 오늘의 문예비평 Vol.- No.108

전산모사를 이용한 열전물성 계산

오민욱 한국세라믹학회 2017 세라미스트 Vol.20 No.2

Una subjetividad del yo entre el desnudo y el vestido: Naufragios de Cabeza de Vaca

오민욱 서울대학교 라틴아메리카연구소 2018 이베로아메리카硏究 Vol.29 No.3

Naufragios (1542) written by Cabeza de Vaca stands out for his leitmotiv, the failure of the colonizing project. The central plot of this testimony is developed through the difficulties and the suffering that the author/character experiences in his journey for Pánuco. But, the rhetoric of failure does not show the full frustration of the author as a colonizer. Rather, it represents the value of misfortune and the benefit of suffering as part of the process of colonization. The hypothesis of the present work is that the dressed/naked binary which marks the beginning and the end of the author's physical and symbolic itinerary, shows the process in which the new subjectivity of “I” is constituted as a "pacific" colonialist. However, we can see some moments in which this binary does not work well or contradicts the intentionality of the colonialist. Although Cabeza de Vaca tries to recover his prestige as a colonizer or to propose an alternative model of colonization, through his narrative of suffering, the text creates the fissure in which the subject is forced to take a different position toward both his own “Europeanness” and indigenous culture. Naufragios (1542) de Álvaro Núñez Cabeza de Vaca destaca por su leitmotiv, el fracaso del proyecto colonizador. La trama central de este testimonio se desarrolla a través de las dificultades y del sufrimiento que el autor/personaje experimenta en su viaje hacia el Pánuco. Sin embargo, la retórica del fracaso no muestra la frustración total del autor como colonizador. Más bien, representa el valor de la desgracia y el beneficio del sufrimiento como parte del proceso de colonización. La hipótesis del presente artículo es que el concepto binario vestido/desnudo, que marca el comienzo y el final del itinerario físico y simbólico del autor, muestra el proceso mediante el cual la nueva subjetividad del "yo" se constituye como un colonizador "pacífico". No obstante, podemos ver algunos momentos en que dicha división binaria no funciona bien o contradice la intencionalidad del colonizador. Aunque Cabeza de Vaca procura recuperar su prestigio como colonizador o proponer un modelo alternativo de colonización a través de su narrativa de sufrimiento, el texto crea una fisura en donde el sujeto se ve obligado a adoptar una posición diferente hacia su propia "europeidad" y ante la cultura indígena.