Dislocation Density-Based Constitutive Model and Processing Map for T2 Copper During Isothermal and Time-Variant Deformation

Gang Chen,Yu Jin,Jing Wang,Cheng Zhang,Qiang Chen,Hongming Zhang,Xingjian Zhao,Zhiyong Li,Changhai Xie,Zhiming Du 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.9

Isothermal compression tests were carried out to study the hot deformation behavior of T2 copper under various conditions. The deformation parameters, such as temperature and strain rate, have strong influence on flow stress and microstructureevolution of the alloy. A unified dislocation density-based model considering dynamic recovery and recrystallization wasestablished. And material parameters of the developed model were optimized by genetic algorithm. Comparisons betweenthe experimental and model data demonstrates that the developed model can precisely describe the flow behavior at quitewide range of deformation conditions. Meanwhile, the designed iterative procedure allows the model to be applied in timevariantdeformation conditions. Processing map and microstructure examination were constructed to optimize the processingwindow of the studied alloy. According to the processing maps, flow instability mainly appeared at low temperatures of500–650 °C and strain rates higher than 0.1 s−1. The optimum deformation parameters of T2 copper was concluded as thetemperature range of 700–800 °C and the strain rate of 0.1–1 s−1.

Section 1 (International Part) : The Evaluation of Cultural Festival: A Longitudinal Study(`99-`03) of Gang-jin Celadon Festival

( Gang Hoan Jeong ),( Yong Ho Roh ),( Brendon Wells ) 한국관광산업학회 2004 국제관광학술대회 Vol.- No.-

우리나라 부동산 정책의 현황과 과제

전강수 ( Gang Soo Jun ) 대구가톨릭대학교 사회과학연구소 2013 사회과학논총 Vol.12 No.-

Jun, Gang-Soo Until the early-1960s, most people used to purchase housing and commercial real estate properties by their hard work and savings in Korea. However, due to the government`s real estate policy, which was mistakenly planned and implement

‘사이시옷’과 ‘두음 법칙’ 재고(再考)

최형강(Choe, Hyeong-Gang) 한국어문학회 2018 語文學 Vol.0 No.140

This study focused on interpreting ‘Insert-s(ㅅ)’ and ‘Word-initial Rule’ the examples while maintaining the framework of ‘Korean orthography’. Also, they study examined the problem of expanding or modifying the ‘Korean orthography’ framework. The findings point out that the case of western loanwords in terms of ‘Insert-s(ㅅ)’, should be supplemented with Sino-Korean words, and also mentioned that ‘Word-initial Rule’ should be modified with regularity. Whether or not the western loanwords can be handled with Sino-Korean words in ‘Insert-s(ㅅ)’ should be reflected in the rules and commentaries, and if the western loanword should be distinguished from Sino-Korean words, the reason should be specified. ‘Insert-s(ㅅ)’ and ‘Word-initial Rule’ are used in this study because the use of western loanwords raises problems not only in ‘Insert-s(ㅅ)’, but also in ‘Word-initial Rule’. In addition, the class of ‘lyu(류)’ being treated exceptionally needs to be reconsidered. The class of ‘lyu(류)’ can function as a noun, and it should be explained why it combines without the application of ‘Word-initial Rule’ in any conditions. As mentioned above, the rules of ‘Insert-s(ㅅ)’ and ‘Word-initial Rule’ of ‘Korean orthography’ need to be revised and supplemented. This study focuses on that necessity, and the issue of specifying necessity as a regulation will be discussed in more detail through further discussions.

<원주어리랑>과 원주오리골농요 연구 -연출을 중심으로-

남강연 ( Nam Gang-yeon ) 세명대학교 지역문화연구소 2019 지역문화연구 Vol.18 No.1

원주오리골농요는 지금의 원주시 행구동 신월랑과 반곡동의 오리골, 봉대, 뒷골, 영랑, 입춘내 등지에서 불리던 소리로 신세타령, 갈꺽기소리, 원주어리랑, 모심기소리, 김매기소리 등이 있다. 원주오리골농요는 농악이 성행 하였던 행구동과 반곡동 인근 마을 주민들이 모여서 농악과 함께 이러한 농요를 불렀다. 박희완은 원주어리랑을 비롯하여 이러한 농요를 기억하고 계시는 분으로 입춘내에 살았다. 그는 오리골 농악에서 태평소를 연주하며 근 30여 년 활동 하였으며 지역에서 위와 같은 소리를 ‘원주오리골농요’라 불려지게 되었다. 원주오리골농요는 연구자 남강연이 농자천하지대본을 바탕으로 스토리텔링하여 민속작품으로 재현 연출, 2015년 제26회 강원민속예술축제에서 우수상, 2017년 제58회 한국민속예술축제에서 동상을 수상하였다. 원주오리골농요는 예전에 비료나 거름 등이 부족하여 산에서 갈을 뜯어 거름으로 사용하던 시절이 있었는데 그때 부르던 농요이다. 원주는 행구동, 흥업면, 호저면 등 여러 지역에서 갈을 뜯어 논농사의 거름으로 사용하였다. 원주어리랑을 비롯하여 원주오리골농요는 원주지역의 민속예술작품으로 보전 전승되어야 한다. As the songs enjoyed in Origol, Bongdae, Doitgol, Yeongrang, and Ipchunnae of Bangok-dong, and Sinwolrang of Haenggu-dong in the current Wonju-si, the Wonju Origol Farming Songs include the Sinsetaryeong(one’s hard-luck story), Galggeokgi-Song, Wonju Eorirang, Rice Planting Song, and Weeding Song. The Wonju Origol Farming Songs were sung together with Nongak(Korean traditional farming music) by village residents around Haenggu-dong and Bangok-dong where the Nongak was popular. As a person who remembered these farming songs including Wonju Eorirang, Park, Hee-Wan lived in Ipchunnae. He actively performed in the Origol Nongak for almost 30 years by playing the Taepyeongso. And the songs above have been called ‘Wonju Origol Farming Songs’ in this region. The Wonju Origol Farming Songs were represented/directed as a folk work by the researcher Nam, Gang-Yeon through storytelling based on the ‘Agriculture is the prop of the country’. They received the excellence award at the 26th Gangwon Folk Arts Festival in 2015, and the bronze prize at the 58th Korean Folk Arts Festival in 2017. The Wonju Origol Farming Songs were sung when collecting reeds from mountain to use them as fertilizer. In many areas of Wonju such as Haenggu-dong, Heungeop-myeon, and Hojeo-myeon, the reeds were used as fertilizer of rice farming. The Wonju Origol Farming Songs including Wonju Eorirang should be preserved and inherited as a folk artistic work of Wonju region.

5―Fluorouracil이 鷄胎體重 成長에 미치는 影響에 關한 硏究

金武剛,李康伊 충남대학교 의과대학 지역사회의학연구소 1984 충남의대잡지 Vol.11 No.1

The author has studied the effect of 5-fluorouracil on the development of the body weight in chick embryo, which is recently drawing attention in the aspect of its relation to the growth inhibition and malformation as anticarcinogenic agent. On the eight day of incubation 250㎍, 500㎍ and 1,000㎍ of 5-fluorouracil were injected into the chrioallantoic membrane in incubated eggs of three groups, and the eggs were brocken for weighing the body weights on the day of 12th, 14th, 16th, and 18th. The effects of doses on the growth were analyzed by the analysis of variance method. The growth formula (y=a+bt+ct^2) and relative growth formula(y=bx^α) were applied to deternine the theoretical growth Quantities and analyze the factors included in the growth Quantities. The results thus obtained were summarized as follows: 1. There were signficances of growth quantities between control and injected groups, and between 250㎍, 500㎍ and 1,000㎍ injected groups. 2. The growth rates were increased with development in all groups and 500㎍ injected group was tipycal pattern. 3. The specific growth rate of all groups showed tendency of decrease. The order of the tendencies were 1, 000㎍ iniected group, control group, 250ug injected group and 500㎍ injected group. 4. The growth centers of the growth gradient in the 250㎍ and 500㎍ injected groups were the eighteenth day of incubation and 1, 000㎍ injected group was in the twelfth day. 5. The coefficients of relative growth in injected groups to control group were showed negative

유도전동기의 공진 문제를 해결한 새로운 V/f 제어 기법

정강률 순천향대학교 산업기술연구소 2003 순천향 산업기술연구소논문집 Vol.9 No.1

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농업유역 소하천의 T-P,T-N 모니터링

이강석,연규방,박진기,나상일,박종화 충북대학교 농업과학기술연구소 2012 農業科學硏究 Vol.28 No.1

본문참고

이동 소하천의 수온,pH,부유물질량,용존산소,생화학적 산소요구량의 특성

이간석,연규방,박진기,나상일,박종화 충북대학교 농업과학기술연구소 2012 農業科學硏究 Vol.28 No.1

본문참고

협동학습을 활용한 초등학교 인성교육의 활성화 : 도덕과 교육을 중심으로

조강모,이인재,정남진 광주교육대학교 초등교육연구소 2000 初等敎育硏究 Vol.15 No.1

The purpose of this study have two as follows; One is to examine the theoretical backgrounds and some effects of cooperative learning and the other is to prove the usefulness of cooperative learning in moral teaching and to provide an effective model of moral teaching in order to develop three aspects of morality. Cooperative learning is the instructional use of small groups so that students work together to maximize their own and each other's learning. Within cooperative activities individuals seek outcomes that are beneficial to themselves and beneficial to all other group members. Cooperative efforts result in participants striving for mutual benefit so that all group members gain from each other's efforts, recognizing that all group members share a common fate, knowing that one's performance is mutually caused for achievement. It is founded that cooperative learning is one of effective instructional processes to develop student's character. It gives students regular practice in developing important social and moral competencies, such as the ability to take perspective, work as a part of a tem, and appreciate others, at the same time that they are learning academic materials. Cooperative learning also contributes to the development of cohesive and caring classroom community by breaking down inter-personal distrust and over-competition and integrating every student into the small social structure of the cooperative group. We proposed the integrated model of moral teaching that could be helpful to build moral knowing, moral feeling, moral acting of students.