Effect of Asymmetric Hot Rolling on the Texture Evolution of Fe–3%Si Steel

Tae‑Wook Na,Hyung‑Ki Park,박창수,Hyung‑Don Joo,Jong‑Tae Park,Heung Nam Han,Nong‑Moon Hwang 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.6

In Fe–3%Si steel, the hot rolling process affects not only the hot rolling texture but also the primary recrystallization texture. Here, the effect of asymmetric hot rolling was studied by comparing the difference in the texture evolved between asymmetricand symmetric hot rolling. The effect of asymmetric hot rolling on the texture of primary recrystallized Fe–3%Si steel wasalso studied. The symmetric hot rolling of Fe–3%Si steel produces a rotated cube texture at the center but Goss and coppertextures near the surface. Asymmetric hot rolling tends to produce Goss and copper textures even at the center like thetexture near the surface. After primary recrystallization, the dominant texture at the center changes from {001} <210> to{111} <112> and the new texture has a higher fraction of the grains which make the low energy boundary with Goss grainsthan that of symmetric hot rolling.

Optimization of the Beam Parameters in a Time-Dependent Free-Electron Laser

NAM*, Soon-Kwon,KIM, Tae Hoon Korean Physical Society 2018 New Physics: Sae Mulli Vol.68 No.10

Misorientation Characteristics at the Growth Front of Abnormally-Growing Goss Grains in Fe–3%Si Steel

Tae‑Young Kim,Tae‑Wook Na,Hyung‑Seok Shim,Yong‑Keun Ahn,Yong‑Kwon Jeong,Heung Nam Han,Nong‑Moon Hwang 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.12

Penetrating morphologies at the growth front of abnormally-growing Goss grains in Fe–3%Si steel was examined in view ofthe possibility that they are the two-dimensional section of the solid-state wetting (SSW) along the triple junction line. Toobtain the statistically meaningful data, 102 penetrated grain and 204 penetrating abnormally-growing Goss grain morphologieswere examined. The misorientation angles of penetrating and penetrated grains were measured by electron backscattereddiffraction. Among the 102 examined penetrated grain boundaries, none has low misorientation angles less than 15°,whereas 17.2% of the 204 penetrating grain boundaries have low misorientation angles, and 23.5% of them have coincidencesite lattice boundaries. Besides, boundary energies of penetrating Goss grains, which were estimated from misorientationangles of the three grains in the penetrating morphology, satisfied the energetic condition for SSW along the triple junctionline. These results imply that the abnormal grain growth of Goss grains in Fe–3%Si steel occurs by the mechanism of subboundaryenhanced SSW.

웹툰에 드러난 남성 동성사회성(homosociality) 양상 : 박태준 작가의 작품을 중심으로

남미자(Nam, Mi-Ja),박성태(Park, Seong-Tae),임세원(Lim, Sewon) 한국교육사회학회 2022 교육사회학연구 Vol.32 No.1

이 연구는 박태준의 네이버 연재 웹툰 싸움독학 (2019.11.15~현재)과 한남동 케이하우스 (2018.12.6~2019.10.31.)에 나타난 남성 동성사회성이 어떻게 드러나는가를 분석하는 것이 목적이다. 최근 남성 청소년의 백래시와 반페미니즘 정서가 확산되고 있는 가운데, 남성 청소년에게 영향력 있는 웹툰 분석은 향후 남성 청소년을 이해하는 데 의미있는 자료가 될 것이다. 두 작품의 분석을 통해 확인한 남성동성사회성 양상은 다음과 같다. 첫째, 남성의 성장은 ‘아직’ 남자가 아닌 자들이 ‘진짜’ 남성들에게 인정받고, 둘째, 인기 있는 여성을 소유하여 성적 주체가 되며, 셋째, 이 과정에서 호모포비아와 여성혐오를 동반하는 것으로 의미화 된다. 이것이 남성의 성장이라고 인식할 때 청소년들은 지속적으로 자신을, 그리고 여성을 혐오할 수밖에 없게 된다. 이러한 분석을 토대로 본 연구는 젠더 교육과 연구의 지형의 변화와 확장을 제안한다. 여성 청소년뿐 아니라 남성 청소년 역시 하나의 젠더 범주로 묶일 수 없는 다층적이고 교차적이기 때문에, 젠더 연구와 교육에서 여성과 남성의 이분법적 시각을 벗어날 필요가 있다. The purpose of this study is to analyze how the male homosociality is revealed in the webtoons written by Park, Tae-joon. Amid the recent spread of backlash and anti-feminist sentiment among male adolescents, webtoon analysis that is influential to male adolescents will be meaningful data for understanding male adolescents in the future. The male homosocial aspects confirmed through the analysis of the two works are as follows. First, the growth of men is recognized by not yet men, and secondly, they become sexual subjects by owning popular women, and thirdly, it is meant to be accompanied by homophobia and misogyny in the process. When recognizing that this ismale growth, adolescents have no choice but to constantly hate themselves and women. Based on this analysis, this study proposes changes and expansion of the topography of gender education and research. Since not only female adolescents but also male adolescents are multi-layered and cross-sectional that cannot be grouped into one gender category, it is necessary to deviate from the dichotomy perspective of women and men in gender research and education.

불규칙한 풍하중을 받는 현수교의 동력학적 해석

김종인(Jong In Kim),김태남(Tae Nam Kim),이용재(Yong Jae Nam) 한국강구조학회 1990 韓國鋼構造學會誌 Vol.2 No.2

Stochastic dynamic analysis of suspension bridge subject to random wind loads were carried out by mode-displacement method and mode-acceleration method. The computed dynamic characteristics are vertical and torsional vibrations of NAM-HAE BRIDGE. From numerical results, it was found that mode-acceleration method, which formulated in this paper, was more reliable and economical than mode-displacement method.

사업장(事業場) 근로자(勤勞者)의 사상체질(四象體質)에 따른 생활습관(生活習慣), 자각증상(自覺症狀), 건강인식(健康認識)에 관(關)한 연구(硏究)

서명효,강홍구,장두섭,왕명자,차남현,김삼태,권소희,정해경,송용선,이기남,Seo Muoung-Hoy,Kang Hong-Goo,Jahng Doo-Sub,Wang Myoung-Ja,Cha Nam-Hyun,Kim Sam-Tae,Kwon So-Hee,Jung Hae-Kyoung,Song Yung-Sun,Lee Ki-Nam 대한예방한의학회 2003 대한예방한의학회지 Vol.7 No.2

The study was conducted to evaluate the difference of life style, subjective symptoms and health cognition depending on the Sasang Constitution in the industrial workers. The results were as follows ; Constitutional distribution among exposed group were Tae-eum In(38.4%), So-eum In(35.2%), and So-yang In(26.4%) and it was turned out that Tae-eum In took a higher portion of Sasang constitution than other constitutions in technician workers. 'Exercise' and 'Obesity' were found most in Tae-eum In, In So-eum In there were many 'Normal' weight and 'Having digestive disorders' were found most in So-eum In. There were no significant difference in the health cognition among the constitutions. The closer to 'normal' weight, the higher prevalence in 'having' concern about health condition and the more 'normal' condition in sleeping, the higher prevalence of 'having' self-confident in present health.

종형 Hall 소자의 감도 개선에 관한 연구

남태철,이재옥 嶺南大學校 工業技術硏究所 1992 연구보고 Vol.20 No.1

The vertical Hall device is a magnetic sensor to detect a magnetic field parallel to the surface of the chip. It can be used for detecting a 3-dimensional magnetic field vector. In this paper, we have fabricated the vertical silicon Hall devices in standard bipolar process technology and measured the various properties. The output voltage of the device versus supplied current and magnetic flux density has showed good linearity. And the temperature dependence of the product sensitivity of the device has been almost stable between -10℃ and 60℃. And we have examined the properties of the device dependent on the formation of buried layer. As a result of measurement of the property of the devices with different buried layer widths, the device with the buried layer distributed under the whole active layer has showed the lowest offset voltage.

가공 열처리한 Ti-Ni-Cu 합금의 형상 기억 특성

남태현 국립경상대학교 공과대학 부설 첨단소재연구소 1991 尖端素材 Vol.1 No.-

Shape memory characteristics of a thermo-mechanically treated Ti-40Ni- 10Cu (at%) alloy have been investigated by means of electrical resistivity measurement, differential scanning calorimetry, X-ray diffraction and thermal cycling test under constant load, and then were compared with those of a solution treated Ti-40Ni-10Cu alloy. The following results are obtained. (1)The transformation occurs in two stage, i. e., B2↔B19↔B19', in both the thermo-mechanically treated and solution treated conditions. (2)Both the B2↔B19 and B19↔B19' transformation start temperatures are increased by thermo-mechanical treatments. (3)The transformation hysteresis and maximum recoverable elongation associated with the B2↔B19 transformation is increased from 11K to 16K and from 3.2% to 3.7% respectively, by thermo-mechanical treatments.

InSb薄膜의 磁氣低抗效果

南泰喆 영남대학교 공업기술연구소 1984 연구보고 Vol.12 No.1

Thin films of InSb have been prepared by the zone-crystallization in ambient air of vacuum deposited layers on glass substrates using a simple hot-wire apparatus. The multiple zone passes can be used to provide additional purification of the InSb films. The improved film quality is demonstrated by a film prepared with four zone passes at 1.4 ㎛/sec growth rate in a temperature gradient 300℃/㎝. The film with 1㎛ thickness has carrier cancentration and election mobility of 1.5×10??㎝-³ and 1.6×10⁴㎠/V.sec respectively at room temperature.

무용전공 여고생과 일반 여고생 간의 골밀도에 관한 연구

남태호,오덕자 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-

This study is to elucidate how dance effects on the increase of bone density when girls are growing up. The subjects are two groups. One is the group majoring dance(Korean traditional dance, ballet), the other is comparative group in girls' high school. The bone density of lumber(L1~L4) and Femoral neck, Ward's triangle, Trochanter of the femoral region are measured using DEXA. As a result, It can be concluded as follows: 1. The groups(Korean traditional dance group and ballet group) showed more significant increase than comparative group in the neck bone density.(p< .05) 2. The Ward's bone density of majoring dance groups is higher than comparative group in the order of Korean traditional dance group(10.88%), ballet(7.72%), but it doesn't appear significant difference. 3. The Troch region bone density of Korean traditional dance group is significantly as high as the level of p<.05, however ballet is 5.9% and is not significantly different from comparative group. The above consequence shows us that a regular dance activity could be thought to increase effectively the bone density of the growing high school girls in lumber and the femoral region.