• Title/Summary/Keyword: 하내

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Ore Mineralization of The Copper-bearing Hanae Hydrothermal Vein Deposit (하내 함 동 열수 맥상광상의 광화작용)

  • Choi, Sang-Hoon;Lee, Sunjin;Jun, Youngshik
    • Economic and Environmental Geology
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    • v.50 no.6
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    • pp.435-443
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    • 2017
  • The Hanae deposit is located within the Cretaceous Gyeongsang Basin. The Cu-bearing hydrothermal quartz vein formed by narrow open-space filling along fracture in the sedimentary rocks as Jindong Formation. The Hanae Cu-bearing hydrothermal deposit shows a paragenetic sequence of pyrrhotite-pyrite $\rightarrow$ pyrite-chalcopyrite-sphalerite(${\pm}$Bi-bearing tellurides) $\rightarrow$ Ag-bearing telluride mineralization $\rightarrow$ secondary mineralization. Fluid inclusion data indicate that the Hanae Cu-bearing hydrothermal mineralization occurred from dominantly aqueous fluids at temperatures of $400^{\circ}C-200^{\circ}C$. Equilibrium thermodynamic interpretation of the mineral paragenesis and assemblages combined with fluid inclusion data indicate that early main Cu-bearing ore mineralization in the vein starts at about $350^{\circ}C$ which corresponds to sulfur fugacity from about $10^{-9.2}$ to $10^{-8.7}bar$ with oxygen fugacity of about $10^{-32.1}$ to $10^{-29.8}bar$. Late main Cu-bearing ore mineralization in the vein occurs at about $250^{\circ}C$ which corresponds to sulfur fugacity from about $10^{-13.5}$ to $10^{-11.7}bar$ with oxygen fugacity of about $10^{-38.4}$ to $10^{-35.2}bar$. The late Ag-bearing telluride mineralization in the Hanae hydrothermal system occurs at about $200^{\circ}C$ which corresponds to minium Tellirium fugacity value of about $10^{-18}bar$ with sulfur fugacity of about $10^{-14.0}$ to $10^{-10.9}bar$.

Bankart Lesion and ALPSA Lesion in Anterior Instability of the Shoulder (견관절 전방 불안정성에서 Bankart 병변과 ALPSA 병변)

  • Kim, Young-Kyu;Ahn, Seung-Jun;Ko, Young-Hwan
    • Journal of the Korean Arthroscopy Society
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    • v.9 no.2
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    • pp.186-193
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    • 2005
  • Purpose: To determine whether it is possible to differentiate between ALPSA(anterior labroligamentous periosteal sleeve avulsion) lesion and Bankart lesion using arthroscopic findings and to investigate the clinical significance of ALPSA lesion. Materials and Methods: This study was performed on 66 cases that underwent arthroscopic Bankart repair for the anterior instability of the shoulder. By the readings of MRI, there were 56 cases(85%) of Bankart lesion and ten cases(15%) of ALPSA lesion. Arthroscopic findings of Each cases were classified and their average follow-up period was 22 months. Results: It was observed that ALPSA lesions developed in younger age groups than Bankart lesions. Under the arthroscope, ALPSA lesions showed various forms, especially there were five cases of severe inferomedial displacements. Within Bankart lesion, 21 cases were observed to be severely displaced and from the arthroscopic findings, it was difficult to distinguish the difference of Bankart lesion cases displaced inferomedially from the neck of scapula without severe lateral displacements and ALPSA lesion. Regarding the recurrence, there were no redislocation but apprehension shows in two cases(20%) with severe inferomedial displacement in ALPSA group. In Bankart lesion, there were four recurrent cases(7.1%); one of redislocation; one case of subluxation; two of apprehension. Conclusion: It was difficult to differentiate Bankart lesion and ALPSA lesion with severe inferomedial displacement and severely displaced ALPSA lesion showed high rate of recurrence. Thus, complete detachment of ALPSA lesion should be performed more carefully to reduce the recurrence rate.

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A Pedunculated Cavernous Hemangioma located beneath the Inferomedial Scapular Area -A Case Report- (견갑골 내측부 하방에 발생한 자루를 동반한 해면 혈관종 -증례 보고-)

  • Park, Tae Soo;Kim, Sung Jae;Ryu, Jeong Ah
    • The Journal of Korean Orthopaedic Ultrasound Society
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    • v.4 no.2
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    • pp.93-96
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    • 2011
  • We reported a patient with a large pedunculated cavernous hemangioma located beneath inferomedial border of the scapular bone and the trapezius muscle checked by ultrasonography before and after the operation. In ultrasonographic finding, the peduncle was difficult to be visualized preoperatively due to acoustic shadowing.

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'얼짱' 프랜차이즈 사업, 쾌속 질주

  • Korea Vending Machine Manufacturers Association
    • Vending industry
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    • v.6 no.3 s.18
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    • pp.70-73
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    • 2006
  • 지난 10월 25일자 동아일보 B7면. 대문짝만한 전면광고로 대승인터컴의 '얼짱' 디지털 포토샵 프랜차이즈 사업이 소개되었다. 처음 이 광고를 본 사람들은 "와! 자판기 사업 아이템도 전면 광고를 하내"라며 놀랠 만도 하다. 하지만 대승인터컴에게는 이같은 전면광고를 통한 사업 마케팅은 흔한 일이다. 작년부터 국내 4대신문을 통한 전면광고를 수시로 진행하며 적극적인 광고 마케팅 투자를 아끼지 않고 있다. 프랜차이즈 사업 개시 2년여가 되는 현재까지 적극적인 광고 마케팅 투자를 한다는 사실은 그만큼 사업이 잘 추진되고 있다는 얘기이다. 부침이 심한 대개의 프랜차이즈 사업과 달리 '얼짱' 프랜차이즈 사업은 성공적으로 자리매김하고 있을 뿐더러 아직도 많은 시장개척의 여지를 남겨 놓고 있다. 자판기를 이용한 프랜차이즈 사업의 새로운 성공사계를 제시하고 있는 '얼짱'의 쾌속 질주 비결을 파헤쳐 봤다.

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Effects of Water Control on Rice Plant in Warmer Season(July-August) (고온기(高溫期)에 있어서 수도(水稻)의 물 관리(管理) 효과(效果)에 관(關)한 연구(硏究))

  • Choi, B.R.;Lee, J.C.
    • Korean Journal of Agricultural Science
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    • v.2 no.1
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    • pp.101-110
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    • 1975
  • This study was carried out to determine the effect of water control on Rice plan in warmer season(July~August). The results are summarized as follows; 1. Compared to ordinary watering methods, a constant irrigation method indicated a decrease in water temperature of $1.5^{\circ}C$. 2. In the plot of constant irrigation, there was an increase in the root system in general and an increase of root distribution near the surface in particular. The near surface root distribution under ordinary watering method shows about forty percent distribution. The constant irrigation method shows a near-surface root distribution of sixty-percent within a perimeter of five centimeters. 3. Under the contants irrigation method, there was an increase in length and area of the flag leaf. 4. The total nitrogen and silica content of leaf-bodies at maturing stage was greater when using the constant irrigation method. 5. There was an increase in the number of panicles and the number of spikelets when using the constant irrigation method. 6. The yield was remarkably increased with constant irrigation.

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