유류오염지 주변 지하수와 지표수의 수화학적인 특성 연구

임홍균,이진용,박영윤,박유철,Lim, Hong-Gyun,Lee, Jin-Yong,Park, Youngyun,Park, Yu-Chul 한국지하수토양환경학회 2012 지하수토양환경 Vol.17 No.5

The aim of this study was to examine chemical and isotopic compositions of groundwater and lake water near an area contaminated by petroleum and to evaluate influence of petroleum on them during the period from March to August 2011. In dry season, $Ca^{2+}$ and $SO{_4}^{2-}$ were dominant in the groundwater and lake water and $Ca^{2+}$ and $HCO{_3}^-$ were significant in wet season. ${\delta}^{18}O$ and ${\delta}D$ of the groundwater and lake water were plotted near LMWL (${\delta}D=8.06{\delta}^{18}O+12.5$). ${\delta}^{18}O$ and ${\delta}D$ of the lake water did not show seasonal variation. However, ${\delta}^{18}O$ and ${\delta}D$ of the groundwater were enriched in wet season compared with those in dry season because of influence of small ponds around wells where evaporation losses were slightly experienced. Redox condition of most lake water was oxidation environment in contact with the atmosphere during the study period. However, redox condition of groundwater was transitional environment in dry season and oxidation environment in wet season because of influence of contaminant such as petroleum. In some groundwater, the concentrations of $NO{_3}^-$ in some groundwater were less than 1 mg/L because of denitrification. Also, $NO{_3}^-$ showed positive correlation with $SO{_4}^{2-}$ and weak negative correlation with $HCO{_3}^-$, because of influence of denitrification.

협업 기반의 커튼월 설계관리 시스템 제안

임홍균,박상준,전재열 단국대 부설 리모델링연구소 2007 리모델링 연구소 논문집 Vol.5 No.1

The curtain wall design process of Korea can be mainly divided into Basic DWG phase performed in architectural design phase and Shop DWG phase performed in the curtain wall design phase. The designing in such process (the process of going over to Shop from Basic) is being performed mainly by the outcome. So it is difficult to communicate between subjects because the decision making or flow of information gets accomplished as one-way. Especially, because the curtain wall designing accomplished in the architectural design process gets performed without reflecting the engineering technology, it causes many problems in the design phasesuch as change of design or delay of decision making. In order to make an improvement on such problem, it is estimated that the existing one-way designing can be improved into the one based on cooperation by enabling the exchange of decision making details between concerned parties in the curtain wall design phase in this study and ultimately proposes a curtain wall design management system which enables generation and alteration of information on curtain wall products, information gathering and sharing of information, etc by materializing a design system of simultaneous engineering concept.

Evidence of hydrolyzed traditional Korean red ginseng by malted barley on activation of receptor interacting proteins 2 and IkappaB kinase-beta in mouse peritoneal macrophages

임홍균,김규엽,문필동 셀메드 세포교정의약학회 2012 TANG Vol.2 No.3

Red ginseng, which has a variety of biological and pharmacological activities including antioxidant, anti-inflammatory, antimutagenic and anticarcinogenic effects, has been used for thousands of years as a general tonic in traditional oriental medicine. Here, we tested the immune regulatory activities of hydrolyzed red ginseng by malted barley (HRG) on the expressions of receptor interacting proteins (Rip) 2 and IB kinase-β (IKK-β) in mouse peritoneal macrophages. We show that HRG increased the activations of Rip 2 and IKK-β for the first time. When HRG was used in combination with recombinant interferon-γ (rIFN-γ), there was a marked cooperative induction of nitric oxide (NO) production. The increased expression of inducible NO synthase from rIFN-γ plus HRG-stimulated cells was almost completely inhibited by pre-treatment with pyrrolidine dithiocarbamate (PDTC), an inhibitor of nuclear factor-B (NF-κB). In addition, the treatment of peritoneal macrophages with rIFN-γ plus HRG caused significant increases in tumor necrosis factor (TNF)-α mRNA expression and production. Because NO and TNF-α play an important role in the immune function and host defense, HRG treatment can modulate several aspects of the host defense mechanisms as a result of the stimulations of the inducible nitric oxide synthase and NF-B. In conclusion, our findings demonstrate that HRG increases the productions of NO and TNF-α from rIFN-γ-primed macrophages and suggest that Rip2/IKK-β plays a critical role in mediating these immune regulatory effects of HRG.

변동경향성 제거 전후의 수리지질학적 시계열분석 결과 비교

임홍균,최현미,이진용,Lim, Hong-Gyun,Choi, Hyun-Mi,Lee, Jin-Yong 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.2

In this study, we compared the analysis results before and after the detrending for the data. According to the comparison results, correlation functions were not much changed while autocorrelation and spectral density functions were largely varied. Especially, time series data with a long-term variation trend showed a distinctive difference. This study demonstrated a usefulness of the detrending for a further analysis.

사례정보를 활용한 설계단계 공공청사 설비 공사비 산정 모델

임홍균(Lim Hong-Kyoon),손보식(Son Bo-Sik) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.6

Recently the functions of public office building have changed into multi-purpose types, such as residential culture, welfare, lease and others as well as public administration services. This diversification of functions has brought the enlargement of the public office building and the increase of construction costs compared to the past. Especially, the MEP(Mechanic, Electric, Plumbing) construction costs are expected to increase by the application of building automation system, intelligent system and energy saving system. the MEP costs of the public office building account for 33.94% of the total construction costs averagely. Therefore, the demand of an appropriate cost estimating and management has increased, the controversy about the reasonable costs of the public office building has been growing steadily. However, most of researches on cost estimating model for construction focused on the overall construction, frame work and finishing work. This study suggests CBR(Case Based Reasoning) based MEP Cost Estimating Model which is estimating by selection of main works and impact factors. 16 Main works and 28 Impact factors were provided through analysis of the construction costs of 19 public office building projects. The proposed model will facilitate the estimating of MEP cost in the basic design stage by project owner or architect, and proves cost estimating accuracy of the Model for the case.

A gate driver circuit for IGZO TFTs driven by two clock signals

김연경,김준동,임홍균,김상연,오환술,박기찬 한국정보디스플레이학회 2012 Journal of information display Vol.13 No.4

In this paper, a gate driver circuit for In–Ga–Zn–O thin-film transistors (TFTs) driven by only two clock signals is reported. In this circuit, the TFTs are turned off with a negative VGS by the two clock signals. As a result, it works properly and suppresses power consumption increase even though the TFT VT shifts in the negative direction.

시계열 분석을 이용한 지열히트펌프 가동에 따른 지하수특성변화 해석

목종구 ( Jong Gu Mok ),임홍균 ( Hong Gyun Lim ),장범주 ( Bum Ju Jang ),박유철 ( Yu Chul Park ),이진용 ( Jin Yong Lee ) 대한지질공학회 2011 지질공학 Vol.21 No.1

본 연구에서는 원주에 위치한 상지대와 괴산에 위치한 중원대의 여름철 지열히트펌프 가동에 따른 지하수 특성 변화를 이해하기 위해 각 관측정의 2010년 5월 21일에서 10월 12일까지의 수위, 수온, 전기전도도에 대하여 시계열분석을 실시하였다. 지하수를 직접 이용하는 수주지열정 방식의 지열히트펌프가 설치된 상지대의 경우 지열히트펌프 가동에 따른 영향을 많이 받아 지하수 특성이 많이 변화하였다. 반면에 유체를 통해 열교환을 하는 수직밀폐형 방식의 지열히트펌프가 설치된 중원대의 경우 지열히트펌프 가동에 영향을 많이 받지 않아 지하수의 특성 변화가 일어나지 않았다. 이와 같은 결과는 지열히트펌프시스템의 설치 종류에 따른 지하수 특성 변화를 이해하기 위한 자료로 활용될 수 있을 것으로 기대된다. Time series analysis was applied to groundwater level, water temperature, and electrical conductivity data obtained from monitoring wells around ground-source heat pumps at Sangji University of Wonju (standing column well type) and at Jungwon University of Goesan (closed loop type), from 21 May to 12 October 2010. We found large temporal variations in the characteristics of groundwater at Wonju, but only minor variations at Goesan. These results may improve our understanding of the effects of ground-source heat pumps on the characteristics of surrounding groundwater, according to the installation method for the pumps.

중년기 특성에 알맞은 팔용산책 프로그램

김유영,김민경,정다정,정다빈,임홍균,송현수,서여은,배준한 국제보건미용학회 2020 국제보건미용학회 학술컨퍼런스 Vol.2020 No.11

건설기계 굴착기용 이동형 연료전지 안전기준 개발 연구

최재욱(JAE-UK CHOI),임홍균(HONG-GYUN LIM),조인록(IN-ROK CHO),이정운(JUNG-WOON LEE) 한국가스학회 2022 한국가스학회 학술대회논문집 Vol.2022 No.5

기술보고 : 강원도 탄산염지역 대수층의 수리전도도 특성

박영윤 ( Young Yun Park ),이진용 ( Jin Yong Lee ),임홍균 ( Hong Gyun Lim ),박유철 ( Yu Chul Park ) 대한지질공학회 2011 지질공학 Vol.21 No.1

이 연구는 영월과 정선 내 탄산염암지역 지하수의 수리전도도를 이용하여 탄산염암지역 지하수의 유동특성을 알아보기 위해 수행하였다. 이 연구를 위해 영월과 정선 내 탄산염암지역에서 개발된 46개 관정의 수리전도도 자료를 수집하였다. 이들 관정들은 주로 연구지역을 북동-남서 방향으로 가로지르는 골지천, 조양강 및 동강 주변으로 개발되었으며 이들의 수리전도도는 0.004-1.1 m/day의 범위를 보였다. 수리전도도는 관정의 심도가 깊어질수록 점차 줄어드는 경향(y = -0.003x- 0.927, r2 = 0.129)을 보였다. 연구지역은 수리전도도에 따라 A(< 0.1 m/day), B(0.1-1 m/day) 및 C(> 1 m/day) 구역으로 구분하였다. A, B 및 C 구역은 각각 연구지역의 87%(n = 40), 11%(n = 5) 및 2%(n = 1)에 해당되었다. A 구역은 단열의 영향을 거의 받지 않았고 B 구역은 단열의 영향을 조금 받았으며 C 구역은 단열의 영향을 많이 받았다. 이 연구 결과는 탄산염지역 지하수의 유동이 주로 단열에 의해서 영향을 받고 있음을 보여주었다. We investigated the flow properties of groundwater in areas of carbonate rocks at Yeongwol and Jeongseon, Gangwon Province, based on measurements of hydraulic conductivity. Existing hydraulic conductivity data were compiled from 46 wells in the study area. These wells were sunk close to Golji stream and the Joyang and Dong rivers, which flow through the study area. The hydraulic conductivities range from 0.004 to 1.1 m/day, and show a gradually decreasing trend with decreasing well depth (y = -0.003x - 0.927, r2 = 0.129). The study area was classified into zone A (< 0.1 m/day), zone B (0.1-1.0 m/day), and zone C (> 1 m/day) according to hydraulic conductivity. Zones A, B, and C make up 87% (n = 40), 11% (n = 5), and 2% (n = 2) of the surface of the study area, respectively. Among the three zones, zone A contains few fractures whereas zone C contains many fractures. These results indicate that groundwater flow in carbonate regions is strongly influenced by the fracture network