• Membrane and Water Treatment
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• 제7권2호
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• pp.115-126
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• 2016

In this study, computational fluid dynamics (CFD) analysis was conducted to investigate the flow pattern and to find the occurrence of dead zones in an existing capacitive deionization (CDI) cell. Newly designed cells-specifically designed to avoid dead zones-were analyzed by CFD in accordance with the flow rates of 15, 25 and 35 ml/min. Next, the separation performances between the existing and newly designed cell were compared by conducting CDI experiments in terms of salt removal efficiency at the same flow rates. Then, the computational and experimental results were compared to each other. The salt removal efficiencies of the hexagon flow channel 1 (HFC1) and hexagon flow channel 2 (HFC2) were increased 88-124% at 15 ml/min and 49-50% at 25 ml/min, respectively. There was no difference between the existing cell and the foursquare flow cell (FFC) at 35 ml/min.

• KIEAE Journal
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• 제10권4호
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• pp.111-116
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• 2010

The environmental management is essential for construction projects. The environmental management cost for construction projects is used for various purposes to control the environmental pollution and treat the wastes generated from the construction sites. Six construction cases were analyzed to compare the environmental management cost. The proportion of environmental management cost for total construction budget should be higher than 0.70% in redevelopment projects and 0.30% in newly constructed buildings, respectively, but every six construction cases did not meet the legal requirement. Redevelopment projects expanded more environmental management cost than the newly constructed projects especially in noise control and wastes treatment. In case of apartment construction projects, the proportion of environmental management cost of redevelopment buildings is 2.4 times higher than the newly constructed buildings, but in all cases, paid more attention to the noise and waste controlling measures than the wastewater treatment. It is needed to ensure the cost-effectiveness of environmental management for achieving the eco-friendly construction sites.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.57-59
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• 2004

This paper reports the observation of the interferometric synthetic aperture radar (InSAR) phase anomaly on a newly reclaimed mudflat, Hwaong, in west coast of Korea, detected by a series of Radarsat-l SAR data obtained mostly during 2003. The observed phase anomaly could be from subsidence of mud land caused by volumetric contraction of mud in dry season. This process must have been initiated from March 2002 when tidal water supply to this region was permanently blocked by the newly constructed embankment. The maximum subsidence rate measured from InSAR signal is about 3 cm per month. The local heterogeneity of the subsidence rate over the reclaimed mudflat may indicate various mud composition, surface-subsurface hydrological processes, or subsurface information of the mud and basement rock structure. In-situ measurement must follow to support this observation from space.

• Animal Systematics, Evolution and Diversity
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• 제32권3호
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• pp.184-196
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• 2016

Hypsicera has been reported six species from South Korea. In this study, we reviewed 13 species of South Korean Hypsicera including seven newly recorded species from South Korea. Female of H. brevicornis and H. nigribasis are reported for the first time from South Korea since first record. Additionally, H. incarinata and H. yoshimoboi are reported new to China. We provide diagnoses of six newly recorded species and descriptions of two new females. We also provide photographs of key characters of seven newly recorded species and a key to 13 species of South Korean Hypsicera.

• KIEAE Journal
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• 제7권4호
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• pp.91-96
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• 2007

This study aims to suggest design data for planning university dormitories to meet the needs of the occupants' through field survey and questionnaire survey at the sampled dormitories in A University in 2006. and the purpose of this study is to suggest program of the suitable common space in the dormitory buildings on campus, especially referred to newly built dormitory of A university. In conclusion, Living space accounts for 56.17%, studying space accounts for 1.86%, well-being support space accounts for 2.49%, convenience support space accounts for 8.35%, management space accounts for 3.08% of the whole area in the program of newly built dormitory.

• 대한전기학회논문지
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• 제37권8호
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• pp.521-527
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• 1988

At present superconducting magnets have been feasible for many applications which require high field or highly homogeneous field that it is too difficult to be produced by conventional electromagnets. This paper is a stuny on Donble Helmholtz superconducting magnet and newly configurated superconducting magnet that realize highly homogeneous field with the minimum magnet volume. Nonlinear programming method is effectively used for the minimum volume of superconducting magnet that realizes the desired field intensity and high homogeneity. The results on Double Helmholtz and newly configurated superducting magnets that are presented in this paper are largely improved.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제48권12호
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• pp.773-776
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• 1999

A newly proposed lateral dual-gate thyristor was fabricated and measured, which has excellent current saturation characteristics of $1200A/cm^2$ even at an anode-gate voltage of 29V, through the elimination of the structurally existing parasitic thyristor. And through the comparison with the LIGBT, the excellent current saturation characteristics of a newly proposed device was verified.

• 한국응용곤충학회지
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• 제49권2호
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• pp.69-82
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• 2010

본 연구를 통하여 한국산 호랑하늘소속은 16종으로 정리된다. 이 중 1종(Xylotrechus pavlovskii Plavilstshikov)은 우리나라에서 처음으로 분포가 확인되는 미기록종이었다. 본 연구의 결과로, 이번 연구에서 표본을 확인하지 못한 4종을 제외한 모든 종에 대한 기술과 각 종별 분포, 기주식물 그리고 삽화를 제공하였으며, 또한 본 속에 속하는 종들에 대한 검색표를 제공한다.

• 한국자원식물학회지
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• 제10권2호
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• pp.194-199
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• 1997

많은 고등균류가 1995년 5월부터 10월까지 모악산도립공원과 완주군의 연석산에서 채집하였다. 그들을 동정한 결과 미기록속은 민꽃버섯속(Stereopsis)이고 미기록종은 포도벚꽃버섯(Hygrophorus arbustivus), 붉은송이(Tricholoma imbricatum), 여린애주름버섯(Mycena fragillima), 납끈적버섯(Cortinarius spilomeus), 붉은끈적버섯(C. saturninus), 전나무끈적버섯 아재비(Dermocybe semisanguinea), 자루민꽃버섯(Stereopsisburtianum), 빨강머리말뚝버섯 (Jansia borneensis)등 8종류였다. 이들 각각의 미기록속과 종에 대하여 한국 보통명을 신청하였다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2003년도 정기총회 및 추계학술대회
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• pp.83-87
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• 2003

In recent days, IAQ(Indoor Air Quality) is regarded as one of the most important environmental factors as well as thermal and acoustic comfort. Various architectural materials are applied and air-tightness of the building is more strengthening to save energy consumption. This is why the air quality of the newly built houses became worse. In this study, contaminants(CO, CO$_2$, Radon, TVOCs, HCHO) density was measured in a newly built house and evaluation was carried out by ASHRAE and EPA Standards. As a result, CO, CO$_2$, TSP and Radon density of the newly built house was in a range of ASHRAE and EPA Standards, but it turned out TVOCs and HCHO density exceeds almost 3${\sim}$5 times in comparison with that of ASHRAE and EPA Standards.