• 제목/요약/키워드: Dongheon

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건설 IT 시스템 발전단계분석을 통한 변화관리 요인 기초 연구 (A Preliminary Study on Change Management Factors through Analysing Development Phase of Construction IT System)

  • 김한얼;이동헌;임형철
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2022년도 봄 학술논문 발표대회
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    • pp.214-215
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    • 2022
  • This study analyzed the development stage and change management necessity of the construction IT system through existing research and literature review, and used WordCloud, one of the text mining techniques, to analyze current construction trends and major issues. The necessity of change management is derived by using existing research literature and construction-related social issues as analysis data.

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문헌으로 찾은 양근·지평 관아의 흔적 - 관아의 연혁·규모·터[址]를 중심으로 - (Traces of Gwan-a in Yanggeun and Jipyeong in Literature - with the Focus on the History, Scale and Sites of Gwan-a -)

  • 유동호
    • 헤리티지:역사와 과학
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    • 제51권1호
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    • pp.80-99
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    • 2018
  • 전근대 사회에서 지방고을의 중심공간은 官衙(관아)가 있던 邑治(읍치)였다. 해안가 고을의 읍치는 읍성 안에 있었으나, 내륙 고을의 읍치는 성곽이 없이 관아만 있었다. 현재 양평군(楊平郡)인 양근군(楊根郡)과 지평현(砥平縣)은 관아만 있던 고을이었다. 양근군과 지평현에 관아가 정식으로 설치된 시점은 조선 초기이다. (1)조선 초부터 두 지역에 수령(守令)이 정식으로 임명되었던 점, (2)1703년(숙종 29)과 1465년(세조 11)에 양근군 동헌(東軒)과 지평현 객사(客舍)가 중수(重修)되었던 점, (3)조선 초부터 향교가 있었던 점 등이 조선 초부터 두 지역에 관아가 존재하였음을 증명한다. 조선시대 양근 지평관아의 주요건물은 아사(衙舍) 향청(鄕廳) 작청(作廳) 객사(客舍) 군관청(軍官廳) 등의 공해(公?), 향교 등의 교육시설, 사직단(社稷壇) 성황사(城隍祠) 여단(?壇) 등의 제단(祭壇)이었다. 현재 양근관아와 지평관아의 흔적은 거의 없다. 하지만 조선시대 지방관아의 공간구성 원칙 속에서 남아있는 문헌 고지도 유물 등을 분석한다면, 두 관아의 터[址]는 대략 찾을 수 있다. 문헌상 양근 아사[동헌] 터로 지목된 지역은 '현 양근중학교 앞 양평읍 관문1길 15(양근리 151)'이다. 실제 관문1길 일대에서 조선시대 백자편 기와편 등이 발견되며, 일부 주택에서 옛 동헌의 장대석을 재활용하는 모습도 확인된다. 한편 양근 객사 터로 추정되는 지역은 '현 양평경찰서 주변'이다. 하지만 양평경찰서 주변에서 객사의 흔적은 발견되지 않는다. 다만 양평경찰서 근처의 양평역 앞에 천주교 성지 표석이 있어, 이 일대가 관아 터였음을 알 수 있다. 지평관아의 주요건물(동헌 내아 작청 장청 군향고 연무정 화약고 향청 객사 등)은 현 관교길(지평리 238~250)을 따라 설치되었던 것으로 보인다. 비교적 정확한 위치를 알 수 있는 건물 터는 객사와 아사[동헌] 터이다. 객사 터로 지목된 지평리 238번지는 주민의 구술과 문헌 내용이 일치하며, 아사[동헌] 터로 추정된 지평리 248~250번지 일대는 백자편 기와편 옛 동헌의 담장 등이 발견된다.

우리나라 생활계 온실가스 배출 특성 분석 (An Analysis of the Characteristics of Greenhouse Gas Emissions from the Daily Life Sector in Korea)

  • 명수정;유동헌
    • 환경영향평가
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    • 제21권2호
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    • pp.255-264
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    • 2012
  • The present study attempts to understand the emission pattern of greenhouse gases in people's daily life through the estimation and analysis of the amount and characteristics of the greenhouse gases. Based on the survey of 1,000 people throughout the nation, monthly emission of greenhouse gases per-capita was estimated from their use of fuels, electricity, water, and personal and public transportation means in addition to their waste generation. In the case of personal car drivers, greenhouse gas emission was the greatest from their cars, followed by the emission from electricity, fuels, and public transportation. Emission from water consumption and waste generation was relatively low. Fuel consumption varied depending on the number of household members, their housing type, and the size of their living spaces. Results showed that single-person households emitted the largest amount of per-capita greenhouse gas while greenhouse gas emission from electricity was inversely proportional to the number of persons in a given household.

나셀 라이다 측정 데이터 특성 분석 및 신뢰성 검증 (Characteristics Analysis and Reliability Verification of Nacelle Lidar Measurements)

  • 신동헌;고경남;강민상
    • 한국태양에너지학회 논문집
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    • 제37권5호
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    • pp.1-11
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    • 2017
  • A study on Nacelle Lidar (Light detection and ranging) measurement error and the data reliability verification was carried out at Haengwon wind farm on Jeju Island. For measurement data error processing, the characteristics of Nacelle Lidar measurements were analyzed by dividing into three parts, which are weather conditions (temperature, humidity, atmosphere, amount of precipitation), mechanical movement (rotation of wind turbine blades, tilt variation of Nacelle Lidar) and Nacelle Lidar data availability. After processing the measurement error, the reliability of Nacelle Lidar data was assessed by comparing with wind data by an anemometer on a met mast, which is located at a distance of 200m from the wind turbine with Nacelle Lidar. As a result, various weather conditions and mechanical movement did not disturb reliable data measurement. Nacelle Lidar data with availability of 95% or more could be used for checking Nacelle Lidar wind data reliability. The reliability of Nacelle Lidar data was very high with regression coefficient of 98% and coefficient of determination of 97%.

국내 공공기관의 재난위험성 현황 분석 1 - 모의훈련과 의식조사를 통하여 - (Disaster Risk Analysis of Domestic Public Institutions 1 - Focusing on Simulation Training and An Attitude Survey -)

  • Seo, Gwangduck;Kim, Dongheon;Choi, Yuncheul
    • 한국재난정보학회 논문집
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    • 제11권3호
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    • pp.337-345
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    • 2015
  • 현대 사회는 기술의 고도화와 도시화로 인하여 재난의 발생빈도가 높아짐에 따라 재난대비를 위한 재난교육 및 훈련이 중요성이 강조되고 있다. 본 연구에서는 모의훈련과 의식조사를 통한 안전관리 방안을 제시하고자 한다. 이에 본 연구를 통하여 얻어진 개선방안은 첫째 본인의 역할과 책임부여을 위한 교육과 훈련을 실시하여야 한다. 둘째 재난관리와 위기관리의 확대를 위해서 매뉴얼의 구축과 이를 기반으로 한 모의훈련이 필요하다. 셋째 재난관리가 우선시 되지 못하는 조직의 대하여 인력배치 등 재구성을 검토하여야 한다.

여수 방답진 관아 건축의 배치 및 위치에 관한 연구 (A Study on the Characteristic of Buildings Arrangement and Location Supposition of Government Office Buildings of BangdapJin in Yeosu)

  • 위소연;성대철
    • 한국농촌건축학회논문집
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    • 제23권2호
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    • pp.25-32
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    • 2021
  • The purpose of this study is to examine the materials on Bangdapjin, summarize the excavation surveys and compare them with the past literature records and to determine the location of the Bangdapjin government office facilities. It was categorized into the castle in the original cadastral map, which allowed to identify the overall shape of Jionseong Castle. The Chi on the castle wall and Ongseong on the Munji have also been identified. The majority of state-owned land in the original cadastral map is usually concentrated at the point where the road from the north intersects with the road from the east to the castle, which is presumably where public buildings were located. One of the photos in the 1950s shows the presence of a building presumed to be an inn featuring, extraordinary shape that deserves special attention. The gate is believed to have had Ongseong due to evidence of a portion protruded at right angles from the castle according to the original cadastral map.

Effects of a Bilateral upper Limb Training Program Using a Visual Feedback Method on Individuals with Chronic Stroke: A Pilot Clinical Trial

  • Kang, Dongheon;Park, Jiyoung;Choi, Chisun;Eun, Seon-Deok
    • International Journal of Contents
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    • 제17권2호
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    • pp.20-31
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    • 2021
  • This study aimed to pilot test a newly developed bilateral upper limb rehabilitation training program for improving the upper limb function of individuals with chronic stroke using a visual feedback method. The double-group pretest-posttest design pilot study included 10 individuals with chronic stroke (age >50 years). The intervention (four weekly meetings) consisted of five upper limb training protocols (wrist extension; forearm supination and pronation; elbow extension and shoulder flexion; weight-bearing shift; and shoulder, elbow, and wrist complex movements). Upper limb movement function recovery was assessed with the FuglMeyer Assessment of the Upper Extremity, the Wolf Motor Function Test, the Trunk Control Test, the modified Ashworth Scale, and the visual analog scale at baseline, immediately after, and four weeks after the intervention. The Fatigue Severity Scale was also employed. The Fugl-Meyer Assessment of the Upper Extremity and Wolf Motor Function Test showed significant improvement in upper limb motor function. The Trunk Control Test results increased slightly, and the modified Ashworth Scale decreased slightly, without statistical significance. The visual analog scale scores showed a significant decrease and the Fatigue Severity Scale scores were moderate or low. The bilateral upper limb training program using the visual feedback method could result in slight upper limb function improvements in individuals with chronic stroke.

Effects of cooking conditions on the physicochemical and sensory characteristics of dry- and wet-aged beef

  • Lee, Dongheon;Lee, Hyun Jung;Yoon, Ji Won;Ryu, Minkyung;Jo, Cheorun
    • Animal Bioscience
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    • 제34권10호
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    • pp.1705-1716
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    • 2021
  • Objective: This study aimed to elucidate the effects of cooking conditions on the physicochemical and sensory characteristics of dry- and wet-aged beef strip loins. Methods: Dry- and wet-aged beef aged for 28 days were cooked using different cooking methods (grilling or oven roasting)×cooking temperatures (150℃ or 230℃), and their pH, 2-thiobarbituric acid reactive substances (TBARS), volatile compounds, and color were measured. Results: Cooking conditions did not affect pH; however, grilling resulted in lower TBARS but higher cooking doneness at the dry-aged beef surface compared to oven roasting (p<0.05). In descriptive sensory analysis, the roasted flavor of dry-aged beef was significantly stronger when grill-cooked compared to oven roasting. Dry-aged beef grill-cooked at 150℃ presented a higher intensity of cheesy flavor, and that grilled at 230℃ showed a greater intensity of roasted flavor compared to wet-aged beef at the same condition, respectively. Conclusion: Grilling may be effective for enhancing the unique flavor in dry-aged beef.

양극산화로 제조된 다공성 나노구조 철 산화막의 열처리 조건에 따른 광전기화학적 성질 (Photoelectrochemical performance of anodized nanoporous iron oxide based on annealing conditions)

  • 정동헌;유정은;이기영
    • 한국표면공학회지
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    • 제56권4호
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    • pp.265-272
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    • 2023
  • Photoelectrochemical (PEC) water splitting is one of the promising methods for hydrogen production by solar energy. Iron oxide has been effectively investigated as a photoelectrode material for PEC water splitting due to its intrinsic property such as short minority carrier diffusion length. However, iron oxide has a low PEC efficiency owing to a high recombination rate between photoexcited electrons and holes. In this study, we synthesized nanoporous structured iron oxide by anodization to overcome the drawbacks and to increase surface area. The anodized iron oxide was annealed in Ar atmosphere with different purging times. In conclusion, the highest current density of 0.032 mA/cm2 at 1.23 V vs. RHE was obtained with 60 s of pursing for iron oxide(Fe-60), which was 3 times higher in photocurrent density compared to iron oxide annealed with 600 s of pursing(Fe-600). The resistances and donor densities were also evaluated for all the anodized iron oxide by electrochemical impedance spectra and Mott-Schottky plot analysis.

분광측색계에 의한 착색 수돗물 시험방법 연구 (A study on the testing method of discolored tap water by spectrophotometer)

  • 김동헌;이종금;오지윤;김기태;전항배
    • 상하수도학회지
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    • 제37권4호
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    • pp.187-202
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    • 2023
  • This study focuses on the application of a new measurement method that quantifies the residual color of filtered water using a spectrocolorimeter after filtering the discolored substances. It was confirmed through the color and turbidity cross-test that the discolored substances cannot be measured effectively with the current legal color and turbidity test method. Therefore, the National Institute of Environmental Research's filter testing method, which involves filtering the sample through 0.45 ㎛ filter and visually inspecting the color, was improved. A membrane filter colorimetry (MFC) method was established by measuring the color difference (ΔE*ab(65)) of the filtered filter using a spectrophotometer and expressing it as filter color unit (FCU). Using the MFC method, the FCU for reference materials such as iron and manganese, as well as field samples, was measured. The results showed a high correlation with turbidity, and the color difference patterns varied depending on the type of reference materials and field samples. This indicates that the MFC method is an effective new measurement method of discolored tap water.