• Title/Summary/Keyword: 유동화

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A Study on Assets Backed Securities in Korea (우리나라 자산유동화 제도의 최근 경향과 과제)

  • O Dong Il
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.5 no.6
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    • pp.571-579
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    • 2004
  • The purpose of the study is to know the current status of the assets backed securities(ABS) in Korea. ABS enables banks, depository institutions, finance companies, and other corporations to liquefy their assets (i.e., raise cash by borrowing against assets) and develop new sources of capital. ABS are bonds that represent pools of loans of similar types, duration and interest rates. By selling their loans to SPC, the originator recover cash quickly, enabling them to make more loans. The ABS market in Korea has grown so rapidly since Financial Crisis in Korea. In current, So many different types of loans are securitized and sold in the investment markets. For more prospering ABS in Korea, some problems in ABS should be make up.

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Bubble-driven Convective Flow in the Liquid with Temperature Gradient (온도구배가 있는 액체 내에서 기포가 유발하는 대류유동)

  • Bae, Dae-Seok;Kim, Jeong-Soo
    • Journal of the Korean Society of Propulsion Engineers
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    • v.15 no.4
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    • pp.65-72
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    • 2011
  • Numerical simulation has been performed to investigate the bubbly flow in the liquid with vertical temperature gradient. The objective of this study is to establish an accurate numerical prediction program of gas-liquid two-phase flows in a vertical temperature gradient condition, whose mathematical model is formulated by the Eulerian-Lagrangian model. The present numerical results reveal the temperature mixing mechanism and the fluid dynamical characteristics induced by the bubbly flow in the liquid with stratified temperature. The effects of bubble radius, void fraction, and gas flow rate on bubble-driven convective flow are considered, too.

Mechanical Characteristics of Accelerated Flowable Backfill Materials Using Surplus Soil for Underground Power Utilities (굴착 잔토를 재활용한 지중전력구조물 뒷채움재의 역학적 특성)

  • Cheon, SeonHo;Jeong, Sangseom;Lee, DaeSoo;Kim, DaeHong
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.26 no.5C
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    • pp.303-312
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    • 2006
  • This study is to evaluate the mechanical characteristics of flowable backfill and offer a guide line of mixture proportion based on soil types for constructing underground power utilities. Flowable backfill is known as soil-cement slurry, void fill, and controlled low-strength material(CLSM). The benefits of CLSM are reduced equipment costs, faster construction, re-excavation in the future, and the ability to place materials in confined spaces, which are narrow parts or perimeters of underground power cables nearly impossible for compaction. The flowable slurry mixed with 17 soils and 6 accelerated mixtures in the laboratory were evaluated for flowability and unconfined compressive strength to meet the target values of this study.

Swirl Generator의 유동 손실 감소화 연구

  • 한귀영;김시영
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.10a
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    • pp.75-76
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    • 2001
  • 산업적으로 강제 Swirl 유동은 난류를 촉진하기 위하여 많이 이용된다. 특히 Swirl유동은 난류 강도를 증가시켜 물질과 열의 전달 효과를 증진시켜 터빈 연소기, 열교환기 및 각종 산업용 버너 등의 공업분야에 폭넓게 이용되고 있다. Swirl강제 유동 발생 방법은 원추형 덕트방식, 베인형, 프로펠러형 등이 많이 이용되고 있으나 대부분의 방법은 강제로 와류(Swirl)를 발생, 촉진 및 증가 시키므로 유동손실 및 압력 손실 등을 수반하게 되어 많은 에너지 손실을 가져온다. (중략)

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