• Proceedings of the SAREK Conference
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• 2005.06a
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• pp.88-88
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• 2005

• 주택과사람들
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• s.194
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• pp.76-77
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• 2006

토지 시장 침체의 골이 깊어지고 있다. 새로 개정된 부동산등기법이 시행돼 실거래가 등기부기재가 의무화되면서 토지 시장 침체가 가속화되고 있다. 내년부터는 부재 지주에 대한 양도세가 현행 9~36%에서 60%로 급등하기 때문에 토지 시장이 장기 침체에 빠질 수 있다고 전문가들은 지적한다. 부동산 시장 침체 속 토지 시장의 현장을 돌아보았다.

• 주택과사람들
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• s.197
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• pp.28-29
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• 2006

부동산 시장의 침체가 건설업계에 짙은 그림자를 드리우고 있다. 금융감독원이 은행ㆍ증권사들을 통해 개발금융 대출을 강화하라는 지시를 내려 개발ㆍ건설업체들의 자금줄이 막혔다. 이에 따라 지방의 중소개발 건설업체들을 중심으로 심각한 경영난을 겪을 것으로 예상되고 있다. 자금난에 허덕이는 개발ㆍ건설 업계의 실상을 들여다보았다.

• 주택과사람들
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• s.187
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• pp.34-35
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• 2005

개발이익의 환수는 부담금을 늘리는 것보다 기존 조세 제도를 제대로 운영하면 충분히 그 효과를 살릴 수 있다는 지적도 나온다. 이미 땅값이나 집값 상승에 대해서는 양도소득세를 통해 이익의 일부를 세금으로 거둬들이고 있다. 개발사업으로 이익을 본 기업도 법인세를 내고 있다. 따라서 기족 세법 테두리에서 개발이익에 대한 철저한 환수를 할 수 있도록 보완책을 마련하는 게 정도(正道)라는 지적이다

• Magazine of RCR
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• v.17 no.4
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• pp.41-47
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• 2022

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2020.06a
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• pp.97-97
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• 2020

• Proceedings of the KSME Conference
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• 2007.05b
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• pp.2291-2296
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• 2007

Thermal transport from vertical heated surface to falling liquid film in a channel has been investigated experimentally. Air-flow is introduced into channel to make a counter flow against falling liquid film. This problem is of particular interest in the design of direct contact heat exchange system, such as cooling tower, evaporative cooling system, absorption cooling system, and distillation system. The effects of channel width and air flow rate on the heat transfer to falling liquid film are studied in detail. The results obtained indicate that heat transfer rate is gradually decreased with an increase in the channel width without air flow as well as with air flow in a channel. It is also found that heat transfer rate of air-flow is increased while heat transfer rate of falling liquid film is decreased with an increase in the air flow rate at a given channel width. However, total heat transfer rate form the heated surface is increased as the air flow rate is increased.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.9 no.2
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• pp.144-152
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• 1997

Film absorption involves simultaneous heat and mass transfer in the vapor-liquid system. In the present work, the absorption process of water vapor by an aqueous soluton of LiBr flowing inside of the vertical tube was investigated. The continuity, momentum, energy and diffusion equations for the solution film and vapor were formulated in integral forms and solved numerically. The model could predict the film thickness, the pressure gradient, and the heat and mass transfer rate. Particularly the effects of vapor flow conditions on the absorption process were investigated in terms of the vapor Reynolds number. As the vapor Reynolds number increased, the shear stress at the vapor-solution interface also increased. Consequently solution film became thinner at higher vapor flowrate under the co-currentflow condition. Thinner film was capable of higher heat transfer to the wall and leaded to higher absorption rate of the water vapor into the solution film.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.14 no.12
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• pp.996-1003
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• 2002

Heat transfer characteristics were investigated for the falling film flowing down the outside of an electrically heated vertical tube. Water was used for the falling film, and its Reynolds number was varied in the range of 70～500. Because water is heated and evaporated as it flows down, both sensible and latent heat transfer should be considered. The effect of the surrounding air movement was investigated by changing the direction of the air injection; without air injection, parallel-flow, and counter-flow. For all cases, sensible teat transfer rate was almost linearly increased with the increasing film flow rate. It was found that the film heat transfer coefficient was hardly influenced by the parallel air flow. However, the counter-flow of air reduced the heat transfer coefficient, which might be caused by the uneven distribution or flooding of the film. At high heat flux, a sudden change of the film heat transfer coefficient was detected as the film flow rate reached the transition value. It is supposed that this phenomenon was caused by the change in the film flow pattern.

• The Journal of Engineering Research
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• v.6 no.1
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• pp.75-81
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• 2004

To solve the urban flood problems, it must get the enough channel conveyances and pumping capacities. It needs set up the detention system to control the flow over the channel capacity. Inspite of this detention system, the peak flow may increased by rainfall distribution and the delay of flow. This shows a design model of detention system which can consider the time problems from mutual connections of the detention storages and pumping flow using IDP(Incremental Dynamic Programming) method.