• 헤리티지:역사와 과학
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• 제52권4호
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• pp.184-205
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• 2019

본 논문은 경기도 지역 석탑의 건립 현황과 양식 분석을 통해 경기도 지역 석탑이 갖는 특징과 의의를 밝히기 위한 것이다. 경기도 지역에 불교가 유입된 이후 다른 지역과 마찬가지로 불상, 석탑, 승탑, 마애불 등 다수의 불교 조형물이 조성되었으며, 이 가운데 불상과 더불어 신앙적인 면에서 중요한 위치를 차지하는 것이 불탑이다. 이후 고려~조선을 거치는 동안 경기도 지역에도 많은 사찰이 건립되었으며 그에 따른 석탑 건립도 성행하였다. 본 논문은 경기도 지역 내 지정된 석탑을 기본으로 48기의 석탑을 연구 대상으로 삼았다. 분포 현황을 보면 한강을 기준으로 경기 북부보다는 남부에 집중 건립되었는데, 중심이 되는 지역은 안성, 이천, 용인, 여주 등이다. 이는 지역적 특수성도 기인하지만, 북부에는 석탑을 건립하는 대형 불사가 많지 않았던 것으로 보인다. 시대별 특징을 보면 통일신라부터 조선에 이르기까지 석탑이 남아 있어 석탑이 꾸준히 건립되었음을 알 수 있다. 주로 고려시대 석탑이 집중 건립되었는데, 고려 전기에 남부 지역에서 활발히 건립되었으며, 고려 후기에는 경기도 전역에 걸쳐 석탑이 건립되었다. 조선시대에는 한양과 가까운 지역 및 왕실과 관련이 깊은 사찰들에 석탑이 건립되어 당시 시대 상황을 간접적으로나마 이해할 수 있다. 석탑은 지역적 특수성, 즉 교통의 요지인 곳에 주로 건립되었는데 안성, 이천, 용인, 여주 등 전략적 요충지로서 주목되는 지역에 불사가 성행하였고 그로 인해 석탑 건립이 활발했던 것으로 보인다. 미술사적 의의를 살펴본 결과, 성주사지 석탑의 영향을 받아 어비리 삼층석탑에서 별석 초층탑신받침이 확인되는 점, 고려시대 석탑 중 백제계 석탑은 확인되지 않고 주로 신라계 석탑과 고려 양식 석탑이 건립되었다는 점, 탑신 결구 방식과 탑신 제작 방식에서 전국적으로도 사례가 많지 않은 특징이 나타난다는 점, 마지막으로 석탑 장엄조식에서 보편성과 특수성을 찾아볼 수 있다는 점에서 의의가 있다고 생각된다.

• 한국경제지리학회지
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• 제18권1호
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• pp.45-59
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• 2015

우리나라에서 도농복합시는 도시지역과 농촌지역의 균형발전을 도모하기 위하여 1995년부터 등장하였다. 본 연구에서는 경기도의 11개 도농복합시를 대상으로, 도시내 산업입지에 따른 경제공간의 변화가 어떻게 양상으로 전개되었는지를 고찰하였다. 경기도의 도농복합시에서는 산업활동의 입지가 활발하게 이루어짐에 따라, 분석 대상에 포함된 모든 도시의 사업체수가 증가하였다. 그러나 개별 도시를 도시지역과 농촌지역으로 구분하여 경제공간의 변화를 고찰한 결과, 이천시와 안성시를 제외한 9개 도시에서 도시지역으로의 경제활동 쏠림현상이 심화되었다. 도시지역으로의 경제활동 쏠림현상은 남양주시 포천시 용인시에서 특히 두드러졌다. 주요 산업부문별 도시지역과 농촌지역의 경제활동 입지 변화를 토대로 실시한 도농복합시의 유형화에서는 5개의 유형이 도출되었다. 경제공간의 변화 유형은 도농격차 심화형, 도시지역 성장둔화형, 농촌지역 성장형, 도농균형 성장형, 도시지역 성장주도형 등이다. 경기도의 도농복합시에서는 거대도시 서울이나 도시화 수준이 높은 도시에 접한 도시일수록 도농격차가 심화되었고, 대도시로부터 멀리 떨어진 도시일수록 도시지역의 성장이 상대적으로 둔화되었다.

• 한국균학회지
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• 제41권4호
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• pp.292-294
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• 2013

2010년 2월에 경기도 용인시 남사면의 소엽풍란 재배농가에서 소엽풍란의 잎과 줄기가 갈색으로 변하면서 말라죽는 피해증상이 발생하였다. 이병 식물체 표면에는 잿빛을 띤 곰팡이가 형성되어 있었으며, 주변 환경이 습할수록 병반 상에 분생포자가 더 많이 만들어지는 경향을 보였다. 균학적 특징으로 분생포자는 난형 및 타원형이고, 무색이며, 단세포로서 크기는 $5.3-16.5{\times}3.8-11.0{\mu}m$이었으며, 갈색의 분생포자경과 검정색 균핵을 형성하였다. 이러한 형태적 특성을 근거로 하여 소엽풍란의 병원균을 Botrytis cinerea로 동정하였으며, 병원성을 검정한 결과 잿빛곰팡이병의 발생을 확인할 수 있었다. 이와 같이 소엽풍란에서 발생한 병을 Botrytis cinerea에 의한 잿빛곰팡이병으로 확인하였고, 본 병을 소엽풍란 잿빛곰팡이병으로 명명하며 우리나라에서 처음으로 보고한다.

• 한국식품영양학회지
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• 제28권5호
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• pp.918-925
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• 2015

An investigation was conducted to evaluate the hygienic status of 33 high school foodservice systems in Yongin city by using hygiene management guide checklist, ATP bioluminescence assay and microbe inspection petrifilm (APC, coliform group, Staphylococcus aureus) of food utensils during use. The 22 hygiene management guide checklist items about facilities, personal hygiene, food control, distribution, washing and disinfection had good grade but there were some inadequate behaviors on observation. The inspection results showed their sanitary condition met the level B of the recommendation of Korea method, it means sanitary management system get settled but more practical CCP system was needed. ATP bioluminescence assay was conducted on surface of food facilities, ATP ranged 425~2,552 RLU on gloves, 541~70,251 RLU on apron, 1,596~88,490 RLU on working desk, 1,177~263,813 RLU on sterilizer grip, 715~32,814 RLU on sterilizer shelf, 114~619,725 RLU on refrigerator grip, 677~319,007 RLU on refrigerator shelf, 71~196,725 RLU on freezer grip, 1,535~233,375 RLU on freezer shelf. APC ranged $66.7{\pm}29.0CFU$ on freezer grip, $102.1{\pm}35.9CFU$ on refrigerator grip, $45.4{\pm}28.2CFU$ on heating cabinet grip, $58.8{\pm}40.4CFU$ on sterilizer grip, the number of coliform group ranged $5.6{\pm}4.9CFU$ on freezer grip, $9.1{\pm}8.7CFU$ on refrigerator grip, $1.2{\pm}1.1CFU$ on heating cabinet grip, $4.5{\pm}4.4CFU$ on sterilizer grip. S. aureus ranged $8.0{\pm}5.6CFU$ on freezer grip, $12.2{\pm}9.6CFU$ on refrigerator grip, $2.1{\pm}1.6CFU$ on heating cabinet grip, $11.6{\pm}6.4CFU$ on sterilizer grip.

• 대한수의학회지
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• 제55권3호
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• pp.185-189
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• 2015

Bovine parainfluenza virus type 5 (bPIV5) was isolated from cattle with downer cow syndrome in 2012, and included both respiratory and neurotropic pathogens from a variety of animals. In the current study, we conducted serosurveillance using sera obtained from seven Korean farms and optimized a reverse transcription-polymerase chain reaction (RT-PCR) assay to detect bPIV5. The overall seropositive rate for Korean cattle was 21.4% (163/760). A farm located near the city of Milyang in Gyeoungnam province had a markedly elevated seropositive rate for bPIV5 compared to that of the other six farms. The regional seropositive rates were 4.2% (8/192) for Haman, 19.5% (18/55) for Hwasung, 73.9% (65/88) for Milyang, 26.0% (50/192) for Namwon, 1.0% (1/96) for Uljin, 13.5% (13/96) for Yeongju, and 32.7% (8/41) for Yongin. The sensitivity and specificity of three RT-PCR primer sets used to amplify the conserved fusion gene of bPIV5 were also evaluated. An RT-PCR assay using the bPIVFR3 primer set was 10-fold more sensitive than the assays using the two other primer sets and did not result in non-specific amplification. These results demonstrated that the bPIFR3 primer set can be used to detect bPIV5.

• 한국물환경학회지
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• 제25권5호
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• pp.689-696
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• 2009

Unit load approach has been used to estimate the non-point pollutant load in Total Water Pollution Load Management System (TWPLMS). In this study, locally applicable unit loads for road and parking lot were developed based on the measurements of 9 rainfall events from 2007 to 2008 in Yongin city of Gyeongan stream watershed. Observations showed that stormwater runoff began at low precipitation (>1 mm) and peak pollutant concentration occurred at the beginning of the runoff because of impervious nature of the sites. Averaged event mean concentrations (EMCs) of road (parking lot) were estimated as COD 105.36(62.69) mg/L, BOD 15.94(13.20) mg/L, TSS 183.45(66.52) mg/L, T-N 4.63(3.28) mg/L, T-P 0.45(0.39) mg/L. Higher EMCs at the road than parking lot may reflect heavier traffic. Unit loads Estimated from the EMCs and 10 year average rainfall data were COD $331.17kg/km^2{\cdot}day$, BOD $50.20kg/km^2{\cdot}day$, TSS $580.13kg/km^2{\cdot}day$, T-N $14.68kg/km^2{\cdot}day$, T-P $1.43kg/km^2{\cdot}day$ in the road and COD $186.59kg/km^2{\cdot}day$, BOD $39.22kg/km^2{\cdot}day$, TSS $199.15kg/km^2{\cdot}day$, T-N $9.70kg/km^2{\cdot}day$, T-P $1.16kg/km^2{\cdot}day$ in the parking lot. The estimated unit loads are not so comparable to the ones listed in TWPLMS technical guideline and published data that locally developed unit loads should be used to estimate non-point pollutant loads.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.322-330
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• 2009

Traffic congestions in local cities have been getting worse since 1990s, so many local governments have considered the introduction of an LRT system. So far, there is no city operating the LRT due to social environments, financial reasons, feasibility and so on. But still many cities have examined LRT or started the construction. Until now, more than 30 cities are constructing LRT or planning the introduction of LRT and it becomes 96 routes, approximately 700km. With the support of MLTM, KRRI has developed automatic LRT system with rubber-wheels, K-AGT as a result of "LRT system technology development project" from 1999 to 2005 by investing 50.32 billion wons(the public 37, the private 13.32) and finished running durability test of 100,000km at Kyeong-san test line. Currently, two trains, coupled two cars respectively have running and signaling tested. K-AGT was appointed to supply for an extension line at Busan Subway Line 3(Minam-Anpyeong section) with 17 trains(six-unit car) 102 cars. However, except for Minam-Anpyeong section, other cities such as Uijeongbu, Yongin, Daegu(Line 3) and Kwangmyeong decided to use the foreign systems, not to use the product, a result of national R&D project. This results in a huge waste of foreign currency and it is expected to require much additional cost for maintenance. If local governments use the products of national R&D projects, many national benefits such as reducing imports and protecting home industries could be expected, therefore in this paper, some plans to encourage to use products of national R&D projects were dealt with.

• 한국태양에너지학회 논문집
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• 제28권6호
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• pp.78-86
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• 2008

The aim of this paper is to show the daylight environment of a light pipe system according to sun movement. A light pipe system has been mounted on the roof of the windowless full scale model: the solar spot has diameter of 0.65m and is 1.3m long, giving an aspect ratio of 1:2. The full scale model was installed on the rooftop of the SHINAN apartment in Yongin city that has no obstructions against sunlight. The test room is equipped with sensors for the measurements of the internal illuminance and has an area of 6m(W)$\times$6m(D)$\times$4m(H). The system has been monitored with a data-logger to evaluate the cumulative distribution of illuminance on a floor-plane from 16th, April to 29th, May, 2008 over one month and selected clear sky condition. For the daylight performance of floor area, the totally 49 measuring points has been used to determine the internal illuminance and an HP datalogger(HP34970A) records the measurements for one consecutive month. The horizontal external illuminance has been measured with two outdoor sensors. This paper presents the results of monitoring light pipe system with internal/external illuminance ratio and cumulative frequency distribution of floor-plane illuminance are discussed The results show that lightpipe is proficient device for introducing daylight into the building. However It provided different daylight indoor environment with wide or narrow Interquatile range of illuminance, internal/external illuminance ratio and cumulative frequency distribution according to solar positions under suuny sky condition. For more achieving the improvement of lightpipes also include energy savings, user visual comfort with various indicators; seasonal solar height, room and lightpipes geometries.

• 한국농공학회논문집
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• 제52권6호
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• pp.63-73
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• 2010

This study is to develop a downstream flood damage prediction model for efficient confrontation in case of extreme and flash flood by future probable small agricultural dam break situation. For a Changri reservoir (0.419 million $m^3$) located in Yongin city of Gyeonggi province, a dam break scenario was prepared. With the probable maximum flood (PMF) condition calculated from the probable maximum precipitation (PMP), the flood condition by dam break was generated by using the HEC-HMS (Hydrologic Engineering Center - Hydrologic Modeling System) model. The flood propagation to the 1.12 km section of Hwagok downstream was simulated using HEC-RAS (Hydrologic Engineering Center - River Analysis System) model. The flood damaged areas were generated by overtopping from the levees and the boundaries were extracted for flood damage prediction, and the degree of flood damage was evaluated using IDEM (Inundation Damage Estimation Method) by modifying MD-FDA (Multi-Dimensional Flood Damage Analysis) and regression analysis simple method. The result of flood analysis by dam-break was predicted to occurred flood depth of 0.4m in interior floodplain by overtopping under PMF scenario, and maximum flood depth was predicted up to 1.1 m. Moreover, for the downstream of the Changri reservoir, the total amount of the maximum flood damage by dam-break was calculated nearly 1.2 billion won by IDEM.

• 전기학회논문지P
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• 제64권2호
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• pp.57-61
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• 2015

Current research and development efforts and other projects for energy storage systems (ESS) have recently been gaining attention. This is due to the many applications where ESS, particularly batteries, can be used. Among these are peak shaving, frequency regulation, and stabilization of renewable energy output. KEPCO has completed the construction and demonstration of a 4-MW battery energy storage system (BESS) located in Jeju City to verify its practicability in the power grid. KEPCO Research Institute has also been developing technology for the commercialization of BESS, and has been conducting a trial run of a 52-MW ESS (28MW + 24MW of Seo-Anseong and Shin-Yongin substations) constructed in 2014 for frequency regulation. This paper discusses the development of operation methods, as well as an operation user interface, for the safe operation and monitoring of BESS used for frequency regulation in a power system. Included are operation and simulation methods for various normal and transient frequency situations that can be experienced by a power system. Also discussed are the results obtained after applying these methods to the 4-MW BESS and the 52-MW ESS, both used for frequency regulation. The technology in this paper will be applied to 500MW ESS for frequency regulation of KEPCO by 2017. It is expected that this technology helps a safe and reliable operation and control of ESS for frequency regulation through its continuous upgrade.