서정주의 고향 서사에 대한 고찰-1942년 산문을 중심으로-

윤재웅(Yun, Jae-woong) 국어국문학회 2020 국어국문학 Vol.0 No.191

이 연구는 1942년 서정주의 고향 서사에 대한 고찰이다. 연구 대상 산문 6편을 집중적으로 다루었다. 그의 고향 산문은 서정주 문학의 향토성을 구축하는 주요한 계기로 작동하면서 후일 『질마재 신화』(1975)의 바탕이 된다고 보았다. 사람에 주목하는 ‘인물 열전’ 성격이 서정주 문학 연대기에 처음 나타난다. 주요 유형은 심미적 인간과 제의적 인간이다. 서정주의 고향 서사에는 열전 특성 외에 또 다른 중요한 세 가지 특성이 있다고 보았다. 문학 공간의 확장, 시간의 통합, 생사의 통합이다. 공간 확장은 문학 제재가 고향 공간으로 집중화된다는 뜻이다. 이는 일제 강점기의 한국문학의 중요한 성격이기도 하다. 시간 통합은 고향을 단순한 향토가 아니라 ‘유사 이전’의 인물이 살아 숨쉬는 특별한 공간으로 바라봄으로써 신화성과 제의성을 부여한다. 생사 통합은 죽은 소녀의 정령을 통해 자기 치유와 부활을 꿈꾸는 이야기 특성이다. 이 서사는 한국의 오랜 구비문학의 전통을 현대에 계승함으로써 한국문학의 역사성을 설명하는 데 유효하다. The purpose of this study is to examine the narrative of Seo Jeong-ju’s hometown in 1942. For this purpose, six prose were set as research subjects and were intensively addressed. The prose of his hometown was regarded as the basis of the later Jilmajae Myth (1975), acting as the main opportunity to build the locality of Seo Jeong-ju"s literature. The ‘character thermoelectricity’ that pays attention to people first appears in the chronology of Seo Jeong-ju’s literature. The main types of these characters are aesthetic and ritualistic. Seo Jeong-ju"s hometown narrative saw three other important features besides thermoelectric characteristics. It is the expansion of the literary space, the integration of time, and the integration of life and death. The expansion of the literary space means that literary sanctions are concentrated in the hometown space. This is also an important feature of Korean literature during the Japanese colonial period. The integration of time gives mythology and rituality by looking at the hometown as a special space where the characters of the "pre-historic age" live and breathe, rather than as a simple hometown. The integration of life and death is a features of the story of dreaming of self-healing and resurrection through the spirit of a dead girl. This narrative is effective in explaining the historicity of Korean literature by inheriting Korea"s long tradition of oral literature.

나노구조 기반 중·고온용 열전소재 연구 동향

남우현(Woo Hyun Nam),신원호(Weon Ho Shin),조중영(Jung Young Cho),서원선(Won-Seon Seo) 한국세라믹학회 2019 세라미스트 Vol.22 No.2

Thermoelectric energy conversion has attracted much attention because it can convert heat into electric power directly through solid state device and vice versa. Current research is aimed at increasing the thermoelectric figure of merit (ZT ) by improving the power factor and reducing the thermal conductivity. Although there have been significant progresses in increasing ZT of material systems composed of Bi, Te, Ge, Pb, and etc. over the last few decades, their relatively high cost, toxicity, and the scarcity have hindered further development of thermoelectrics to expand practical applications. In this paper, we review the current status of research in the fields of nanostructured thermoelectric materials with eco-friendly and low cost elements, such as skutterudites and oxides, for mid-high temperature applications, highlighting the strategies to improve thermoelectric performance.

Thermoelectrically controlled micronozzle - A novel application for thermoelements

Amar Hasan Hameed,Raed Kafafy 대한기계학회 2012 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.26 No.11

This paper introduces and assesses the concept of the recently invented thermoelectrically controlled micronozzle (TECMN). A generalized quasi-one-dimensional model for gas flow, which is influenced by area variation and by wall heat transfer, is considered. In order to assess the merits of wall temperature control in micronozzles, the flow in the micronozzle is solved numerically for cases of convergent wall heating, divergent wall cooling, and a combination of both. Thermal efficiency and specific impulse are affected by heat exchange through the side wall of the micronozzle. By cooling the divergent section, kinetic energy increases, thus improving thermal efficiency. The mass flow rate is decreased in all cases that include convergent section heating, thereby enhancing specific impulse. The combination of convergent section heating with divergent part cooling results in significant performance enhancement in terms of thermal efficiency and specific impulse. To determine the TECMN wall temperature profile, we developed a one-dimensional general energy model for a thermoelement (TE) subject to an electric field as well as for heat convection on the lateral surface. The energy equation is analytically solved for constant properties and for Joule heating equivalent to heat convection. The temperature profile is then imposed on the quasi-one-dimensional flow model, which is solved numerically for various mass flow rates and exit wall temperature (cold junction). As the exit section wall temperature and mass flow rate decrease, the utilization of TEs to control the temperature of micronozzle walls considerably increases the Mach number at exit.

Thermoelectric Properties of N-type 90% Thermoelectric Materials Produced by Melt Spinning Method and Sintering

Kim Taek-Soo,Chun Byong-Sun 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1

N-type solid solutions doped with 1 was prepared by melt spinning, crushing and vacuum sintering processes. Microstructure, bending strength and thermoelectric property were investigated as a function of the doping quantity from 0.03wt.% to 0.10wt.% and sintering temperature from to , and finally compared with those of conventionally fabricated alloys. The alloy showed a good structural homogeneity as well as bending strength of . The highest thermoelectric figure of merit was obtained by doping 0.03wt.% and sintering at .

열전(TE) 소자의 성능 예측을 위한 수치해석적 연구

김창영(Chang Nyung Kim),YAN Yue,WEN Meimei 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11

In the present study, a two-dimensional numerical code is developed that is capable to predict the performance of a thermoelectric module that includes a p-leg and an n-leg together with top and bottom end plates. The present code can predict the heat flow, electric current, Joule heating, Peltier heating, Thomson heating and efficiency (or COP) of the modules whose properties depend on the temperature. The present numerical code can be used for the design and optimization of a thermoelectric power generator and a Peltier heater/cooler.

Thermoelectric Transport Properties of Ca3Co4−xNixO9+ Oxide Materials

K. Park,J. S. Cha,S. W. Nam,S.-M. Choi,서원선,S. Lee,Y.-S. Lim 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.68 No.1

Nano-sized Ca3Co4−xNixO9+ (0 x 0.3) thermoelectric powders are synthesized by using the solution combustion method, with aspartic acid as a combustion fuel. The synthesized Ca3Co4−xNixO9+ nano-sized powders exhibit a spherical-like shape and a smooth surface. Higher Ni content results in a smaller grain size and a higher porosity, resulting in a decrease in the electrical conductivity. However, the Seebeck coefficient of Ni-added Ca3Co4O9 is much higher than that of Ca3Co4O9. The highest power factor (1.4 × 10−4 Wm−1K−2), which is more than nine times larger than that of Ca3Co4O9, is attained for Ca3Co0.38Ni0.2O9+ at 800 C. The addition of a small amount of Ni is highly effective in improving the thermoelectric properties of Ca3Co4O9. We believe that Ca3Co4−xNixO9+ is a potential p-type thermoelectric material for renewable energy conversion.

Development of Perovskite-type Cobaltates and Manganates for Thermoelectric Oxide Modules

Weidenkaff, A.,Aguirre, M.H.,Bocher, L.,Trottmann, M.,Tomes, P.,Robert, R. The Korean Ceramic Society 2010 한국세라믹학회지 Vol.47 No.1

Ceramics with perovskite-type structure are interesting functional materials for several energy conversion processes due to their flexible structure and a variety of properties. Prominent examples are electrode materials in fuel cells and batteries, thermoelectric converters, piezoelectrics, and photocatalysts. The very attractive physical-chemical properties of perovskite-type phases can be modified in a controlled way by changing the composition and crystallographic structure in tailor-made soft chemistry synthesis processes. Improved thermoelectric materials such as cobaltates with p-type conductivity and n-type manganates are developed by following theoretical predictions and tested to be applied in oxidic thermoelectric converters.

Development of Perovskite-type Cobaltates and Manganates for Thermoelectric Oxide Modules

A. Weidenkaff,M.H. Aguirre,L. Bocher,M. Trottmann,P. Tomes,R. Robert 한국세라믹학회 2010 한국세라믹학회지 Vol.47 No.1

Ceramics with perovskite-type structure are interesting functional materials for several energy conversion processes due to their flexible structure and a variety of properties. Prominent examples are electrode materials in fuel cells and batteries, thermoelectric converters, piezoelectrics, and photocatalysts. The very attractive physical-chemical properties of perovskite-type phases can be modified in a controlled way by changing the composition and crystallographic structure in tailor-made soft chemistry synthesis processes. Improved thermoelectric materials such as cobaltates with p-type conductivity and n-type manganates are developed by following theoretical predictions and tested to be applied in oxidic thermoelectric converters.

The effect of microstructure on the thermoelectric properties of Bi₂Te₃–PbTe alloy

Kwon, O-Jong,Park, Jonglo,Yim, Ju-Hyuk,Koo, Hyun,Kim, Jae-Yeol,You, HyunWoo,Bae, Sung-Hwan,Kim, Jin-Sang,Park, Chan Elsevier 2011 Current Applied Physics Vol.11 No.1

<P><B>Abstract</B></P><P>The microstructures and the thermoelectric properties of the polycrystalline Bi<SUB>2</SUB>Te<SUB>3</SUB>–PbTe alloy, which was prepared by spark plasma sintering were investigated. <I>The polycrystalline alloy consists of Bi rich and Pb rich regions with several nm sizes</I>, <I>which were identified by transmission electron microscope</I> (<I>TEM</I>) <I>and energy dispersive spectrometer</I> (<I>EDS</I>). The highest power factor, <I>S</I><SUP>2</SUP><I>ρ</I><SUP>−1</SUP>, and ZT value of the polycrystalline alloy were 4.30 × 10<SUP>−4</SUP> W m<SUP>−1</SUP> K<SUP>−2</SUP> and ∼0.39 at 473 K respectively, and the lowest thermal conductivity was ∼0.5 W/m K at same temperature. The relatively low thermal conductivity of polycrystalline Bi<SUB>2</SUB>Te<SUB>3</SUB>–PbTe alloy is caused by the increase of grain boundary and interfaces between the Bi-rich and the Pb-rich regions.</P>

Bi2Te3 powder/poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonate) 복합체의 열전성능

이나영,김현식,신원호,노종욱 한국세라믹학회 2021 세라미스트 Vol.24 No.1

We herein report on the thermoelectric properties of Bi2Te3 powder/PEDOT:PSS composites, which were prepared by the solid state reaction and screen printing methods. After fabrication of the coating films, the components such as Bi, Te, or PEDOT:PSS were effectively mixed in the composites. The power factor of the composites with 15 wt.% Bi2Te3 powder was measured to be 18.1 × 10-4 W/m·K2 , suggesting that their heterostructure shows the feasibility for enhancing thermoelectric efficiency in the organic-inorganic composites.