• Title/Summary/Keyword: 계림로

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Effect of High-Temperature Sintering Condition on Microstructure Evolution of Pure-Cu Subjected to Metal Injection Molding (금속분말 사출성형된 순-구리의 미세조직에 미치는 고온 소결조건의 영향)

  • Han, D.I.;Suhartono, T.;Kim, D.J.;Lee, E.H.;Kim, J.H.;Ko, Y.G.
    • Transactions of Materials Processing
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    • v.31 no.4
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    • pp.240-245
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    • 2022
  • In this study, to achieve good electrical conductivity of a charging terminal component in electric vehicles, we investigated the microstructure evolution of pure-Cu subjected to metal injection molding by controlling the sintering variables, such as temperature and time. Thus, three samples were sintered at temperatures ranging from 1000 ℃ to 1050 ℃ near to the melting temperature of 1085 ℃ for 1 and 10 h after thermal evaporation of binder at 730 ℃. Both procedures were made using a unified furnace under Ar+H2 gas with high purity. The structural observation displayed that the grain size as well as the compactness (a reciprocal of porosity) increased simultaneously as temperature and time increased. This gave rise to high thermal conductivity of 90% IACS together with high density, which was mainly attributed to decrease in fractions of grain boundaries and micro-pores working as effective scattering center for electron movement.

중국의 Karst지형 연구 -계림지역을 중심으로-

  • 강승삼
    • Journal of the Speleological Society of Korea
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    • v.26 no.27
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    • pp.15-34
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    • 1991
  • 중국 남부에 분포하는 Karst 지역에 있어서 화남지방의 기후는 전 계절에 걸쳐 강우가 많으나 특히 여름에 최대강우를 나타내고150mm~2500mm 강우가 내린다. 습윤월은 8월~12월이고 여름은 덥고(17$^{\circ}C$~3$0^{\circ}C$) 겨울도 온화하다. 태풍이 자주 발생하고 이에 따라 강우가 동반한다. 서리는 없다. 동결로 인한 파괴나 일사로 인한 파괴가 없고 기온의 일교차나 계절적인 교차가 적어서 기계적 풍화가 적고 연중 화학적인 풍화가 왕성한 지역이다.(중략)

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Study on the Types and Features of China's Idle Schools -A Case Study on Pingle County of Guilin, Guangxi- (중국 폐교의 유형 및 특성 분석에 관한 연구 - 광시성 계림시를 중심으로 -)

  • Mou, Biao;Lee, Jong-Kuk
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.14 no.1
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    • pp.10-21
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    • 2015
  • Due to the impact of birth rate, the school age population decreases year by year, and as a result, the Ministry of Education conducts the layout adjustment for middle and primary schools and cancels substantial rural schools. Nearly half of the cancelled and idle schools are not applied till now. Combining the practical demand of local residents, it is quite necessary to make use of the idle schools effectively again. Consequently, field investigation is conducted for the architectural status of 28 idle schools in Pingle County of Guilin, Guangxi, and detail investigation and analysis has been carried out for the different scales of schools from various aspects, including the covered area, traffic, building construction, space composition, degree of aging, etc. The investigation result shows that small teaching schools are remote, being small in scale, single in space and serious in aging. Complete primary schools are close to the villages and towns, being large in scale, abundant in space, and well preserved. The teaching schools are between the previous two types. Meanwhile, it is generally convenient in traffic, and good in structure. It can provide fundamental data for the future utilization and study.

The Real States of Affairs and Features of Fortune-Telling in Gwang-Ju (광주 점복(占卜)문화의 실상과 특징)

  • Pyo, In Ju
    • Korean Journal of Heritage: History & Science
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    • v.43 no.4
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    • pp.4-23
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    • 2010
  • Danggol, in other words the hereditary shaman, is a person who is performing the Gut(the Korean shamanistic ritual) as the job but fortuneteller simply tells someone's fortunes. Nowadays most of fortunetellers think their works are wholly managed the Gut as the holy jobs. But Generally this kinds of jobs, we think it is lower than ordinary people's level of education in the korea. Actually we can meet eleven fortunetellers who have a college diploma out of them, so we can know that their education's level is increasing gradually. On the other hand a house of fortunetellers is the place where can lead the way of our lives in the method of seeing one's past life or making predictions of someone's coming events etc. Gradually this place seems to be separated with a private home, so the most of them is managing as the monthly rent. Consequently this houses are heavily located at the Gyerim five-way crossing, the Yang-dong Dakjeonmeory street, Jungheung-dong local culture street area. Each fortunetellers have the different ways of fortune-telling because this methods are decided by their one's characters. So their fortune-telling time and its time required for a task is far different. The methods of telling it is very much different in accordance with the learning fortuneteller or spiritualistic fortuneteller. But the process of fortune-telling is common like as a preparatory stage, carrying a Jumsa(fortune-telling) stage and acting by a Jumsa stage. These steps are sequential but linked together. There are six special features of fortune-telling culture in Gwang-Ju. 1. The role of a fortuneteller and Bosal(spirit-descended shaman) runs at the same time. 2. The house of fortune-telling is doing Gutdang(ritual house)'s works. 3. Its location are heavily collectivized at the specific districts. 4. The learning fortuneteller are increasing gradually. 5. The youth are growing use in the fortune-telling house. 6. There are many person that are visiting this house because of individual problems not their family's problems.

해외리포트 - 조선족 추장(?)의 중국 배낭여행기

  • Lee, In-Bae;Park, In-Seong
    • 열린충남
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    • s.57
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    • pp.46-57
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    • 2012
  • 중국은 최근 급속히 진행되는 도시화와 소득 증대 철도 도로 항공 등 교통 인프라 개선에 따라 중국 여행업이 빠르게 발전하고 있다. 중국 사회과학원이 최근 발표한 <2011년 중국 관광 그린북>에 따르면 중국 여행객 수는 연평균 11.7% 증가하여 21억 명을 돌파했고, 관광 수입도 연평균 18.9% 증가해 1조 2,600억 위안에 달하고 있다. 세계경제포럼에서 발표한 세계 관광국 경쟁력 순위에서 중국은 2007년 71위에서 2010년에 39위로 성장하였고, UN 세계관광기구의 보고서에 따르면 중국은 세계 4대 해외관광시장이자 아시아 최대 해외관광 자원국이 되었다. 그리고 미국 보스턴컨설팅그룹이 발표한 보고서에 따르면 2013년 중국은 일본을 제치고 '세계 2 대 관광시장'으로 부상하여 세계 관광시장의 8%를 점유하고, 2020년에는 세계시장 점유율이 14%에 달할 것으로 전망하고 있다(대한상공회의소, 2011). 이러한 중국의 여행지 중에서 중국의 전문여행서적에서 추천하고 있는 중국외 관광명소 중 20대 명승지에 속하는 광서 계림, 호남 장가계, 안휘 황산, 절강 항주, 북경, 내몽고 호화 호특, 백두산 등을 배낭여행을 떠나 구석구석 살펴보았다.

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A Study on the Fe Based Raw-Material Specifications Unification (원자재류 규격통일화 연구 - Fe류)

  • 남궁정;강경준;권용환;이계림;손승현
    • Journal of the Korea Institute of Military Science and Technology
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    • v.6 no.4
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    • pp.56-62
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    • 2003
  • In order to actively cope with international changes such as cessation of the Cold War in the twentieth century, the government has been proceeding the unification project between military and commercial specification leading to cost reduction of military supplies as well as to high effectiveness. Among these efforts, the study on raw materials specifications, which seems to have been widely used for military or commercial fields, has been performed. As the result of these studies, we have reformed military standards through surveying and summarizing military, KS and international specifications on raw materials. Consequently, the reduction of costs for the procurement of military supplies and the maintenance of current military specifications is to be expected.