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Now ESCO 2 - 2012 해외 ESCO M&V 교육 그 현장을 가다

  • Eom, Gi-Hyeon;Kim, Yong-Hui
    • The Magazine for Energy Service Companies
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    • s.75
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    • pp.50-53
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    • 2012
  • 최근 ESCO성과보증방식의 정책적인 확산에 따라 에너지절감량 측정 및 검증(M&V)에 대한 중요성이 부각되고 있다. 에너지절감량을 구체적으로 산출하고 측정, 검증하는 과정인 M&V는 정확한 ESCO사업을 수행하기 위한 필수적인 과정이다. 협회는 2012년 2월 20일부터 25일까지 5박 6일간 대만 ESCO협회(TESA)와의 업무협력을 통해 대만의 M&V 전문교육기관에서 21명의 참석자와 함께 '2012 해외 ESCO M&V 교육' 과정을 마치고 돌아왔다. 현장 사진과 (주)에코시안 엄기현 팀장과 김용희 대리의 참관기를 통해 뜨거웠던 교육 현장을 소개한다.

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Automation of Aerial Triangulation by Auto Dectection of Pass Points (접합점 자동선정에 의한 항공삼각측량의 자동화)

  • Yeu, Bock-Mo;Kim, Won-Dae
    • Journal of Korean Society for Geospatial Information Science
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    • v.7 no.2 s.14
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    • pp.47-56
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    • 1999
  • In this study, tie point observation in aerial triangulation was automated by the image processing methods. The technique includes boundary extraction and We matching processes. The procedures were applied to extract points of Interest and to find their conjugate points in the other images. The image coordinates of the identified points were then used to compute their absolute coordinates. An algorithm was developed in this study for the automation of observation in aerial triangulation, which is a manual process of selecting a tie point and recording the image coordinate of the selected point. The developed algorithm automates this process through the application of a mathematical operator to extract points of interest from an arbitrary image. The root m square error of image coordinates of the developed algorithm is $6.8{\mu}m$, which is close to that of the present analytical method. In a manual environment, the accuracy of the result of a photogrammetric process is heavily dependant on the level of skill and experience of the human operator. No such problem exists in an automated system. Also, as a result of the automated system, the time spent in the observation process could be reduced by a factor of 61.2%, thereby reducing the overall cost.

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Development of BIM based LID Facilities Supply Auto-checking Module (BIM 기반 LID 시설 물량 자동 검토 모듈 개발)

  • Choi, Junwoo;Jung, Jongsuk;Lim, Seokhwa;Choi, Joungjoo;Kim, Shin;Hyun, Kyounghak
    • Journal of Environmental Impact Assessment
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    • v.26 no.3
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    • pp.195-206
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    • 2017
  • Recently, Discussion about BIM based LID (Low Impact Development) facilities management system is activated because interest of LID technique for urban water cycle restoration is increasing. For this reason, this paper developed the auto-checking module of the BIM (Building Information Model) based supply output table. This module will be the foundation of the BIM based LID facilities total management system. The research order is composed like next follows: (1) Select target area, (2) Make BIM model of LID facilities and extract supply output table, (3) Develop comparison module, (4) Analysis results. As a result, the authors made 27 LID facilities and developed the supply output table comparison automation module. So, the authors could find differences of 2D design documents based supply output table and BIm based supply output table. So, the authors made an improvement suggestion of the design plan and could construct foundation of the BIM based LID facilities total management system.

경상분지 남동부 일광광산에 산출하는 전기석 기원과 그 중요성에 관한 예비연구

  • 장주연;양경희;이준동
    • Proceedings of the Mineralogical Society of Korea Conference
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    • 2001.06a
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    • pp.58-59
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    • 2001
  • 부산에서 북동쪽으로 대략 25km 떨어진 지점에 위치하고 있는 일광광산 부근의 지질은 백악기 화산암ㆍ퇴적암 그리고 이를 관입한 화강암류와 이 암주 내에 발달하는 구리-중석을 함유하고 있는 각력파이프광상으로 이루어져 있다. 일광광산의 화강암류는 거의 타원형으로 felsic한 중앙부와 mafic한 양상의 주변부로 나뉘어지며, 암주 내에 수직적인 원통형의 각력파이프가 광화대를 이루고 있고, 그 주변에는 모암변질대가 발달되어 있다. 각력파이프를 충진하고 있는 vein과 화강암의 중앙부에는 전기석이 풍부하게 산출되고 있다. 일광광산에서 산출되는 전기석은 야외 관찰시 각력파이프 중심에서부터 외곽부쪽으로 전기석의 풍부함이 감소하며 산출형태도 달라진다. 파이프에서 대략반경 150m내에서 전기석은 침상형 의 방사상 모양 내지 rosettes형으로 풍부하게 산출되며, 화강암내의 mafic한 암편을 치환한 형태로 산출되기도 한다. 암주의 중앙부 주변부에서는 거의 미세한 구상형으로 산재되어 나타나고 있다. 전기석은 복잡한 화학식 {(Na, Ca)(Fe, Mg)$_3$(Al, Li)$_{6}$(BO$_3$)$_3$Si$_{6}$O$_{18}$ (OH, F)$_4$}을 갖는 붕산 규산염광물이다. 이러 한 다양한 성분은 마그마의 진화과정, 모암의 특성, 온도, 압력, 성분과 같은 물리ㆍ화학적 성질에 따라 전기석의 성분이 체계적으로 변하기 때문에 모암과 전기석 기원과의 상관관계를 파악할 수 있다. 파이프 부근의 화강암류는 현미 경상에서 전기석이 석류석과 같이 풍부하게 나타나며 장석들은 변질받은 상태로 세리사이트, 녹렴석으로 나타나고, 흑운모와 각섬석은 녹니석화되어 변질된 상태를 보이고 있다. 파이프 중심에서 외곽부로 갈수록 전기석의 함량은 줄어들고 있고 장석들이 알바이트ㆍ칼스베드 쌍정을 보이며, 흑운모가 각섬석보다는 우세하게 나타나고 있다. 전기석은 주상 결정, 자형 내지 반자형의 입자로 다색성을 보이며, 결정 중심에서 가장자리로 갈수록 파란색과 황갈색의 광학적 누대구조를 관찰할 수 있다. 일광광산에서 산출되는 전기석에 대한 현미경 관찰은 열수기원임을 지시하고 있다. 야외조사와 현미경 관찰의 예비조사에 의하면 일광광산의 전기석이 형성된 환경은 다른2가지 화학적인 저장소의 혼합 효과의 결과로 생성되어진 것으로 예상된다. 일광의 화강암류를 만든 마그마는 전기석을 형성할 만큼의 Fe-Mg성분이 충분하지 않았을 것이다. 화강암 내에 흑운모와 각섬석의 결정작용에 의해 마그마의 Fe-Mg성분이 고갈되어지고 이로 인해 그 함량이 감소하며 상대적으로 마그마 내에 남은 붕소(B$_2$O$_3$)는 열수로 용리되고 흑운모, 각섬석과 평형을 유지하며 열수에 남아있게 된다. 잔류용융체에 남은 붕소의 함량은 전기석을 만들기에 충분함에도 불구하고, Fe-Mg 함량이 부족하여 마그마 기원의 전기석 결정을 만들 수가 없다가 광맥이 형성된 시기에 또 다른 열수가 공급되면서 이전의 평형이 깨지고 기존의 흑운모와 같은 염기성 광물이 붕소(B)를 함유한 새로운 열수와 반응하여 전기석을 형성한 것으로 예상한다. 앞으로 전암과 광물에 대해 지화학적 연구를 통해 화강암류와 전기석과의 지화학적 연관성, 주성분 원소와 열수의 특성과의 상관관계, 전기석의 기원(마그마 기원인지 열수기원인지)이 보다 정확하게 파악될 것이다. 마그마 진화에 따른 전기석의 성분변화와 기원을 이용하여 일광광산의 동광화대를 형성한 마그마 계에서 열수계로 이어지는 지질학적 과정을 이해할 수 있을 것이며, 암석 성인론적 지시자로서 어떠한 중요성을 갖는지 논의되어질 수 있다.

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A Vehicle Reidentification Algorithm using Inductive Vehicle Signatures (루프검지기 자기신호 패턴분석을 통한 차량재인식 알고리즘)

  • Park, Jun-Hyeong;O, Cheol;NamGung, Seong
    • Journal of Korean Society of Transportation
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    • v.27 no.1
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    • pp.179-190
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    • 2009
  • Travel time is one of the most important traffic parameters to evaluate operational performance of freeways. A variety of methods have been proposed to estimate travel times. One feasible solution to estimating travel times is to utilize existing loop detector-based infrastructure since the loops are the most widely deployed detection system in the world. This study proposed a new approach to estimate travel times for freeways. Inductive vehicle signatures extracted from the loop detectors were used to match vehicles from upstream and downstream stations. Ground-truthing was also conducted to systematically evaluate the performance of the proposed algorithm by recognizing individual vehicles captured by video cameras placed at upstream and downstream detection stations. A lexicographic optimization method vehicle reidentification algorithm was developed. Vehicle features representing the characteristics of individual vehicles such as vehicle length and interpolations extracted from the signature were used as inputs of the algorithm. Parameters associated with the signature matching algorithm were calibrated in terms of maximizing correct matching rates. It is expected that the algorithm would be a useful method to estimate freeway link travel times.

Granulite xenoliths in porphyroblastic gneiss from Mt. Jiri area, SW Sobaegsan massif, Korea (소백산육괴 서남부 지리산지역의 반상변정질 편마암에서 산출되는 백립암질 포획암)

    • The Journal of the Petrological Society of Korea
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    • v.8 no.1
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    • pp.34-45
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    • 1999
  • Mafic granulite xenoliths are found in precambrian porphyroblastic gneiss of the Mt. Jiri area, SW Sobaegsan massif, Korea. The xenoliths are rounded to ellipsoidal in shape, 50-100 cm in length and coarse-grained with granoblastic and foliated texture. The xenoliths consist of orthopyroxene, garnet, biotite, plagioclase, quartz, ilmenite and secondary orthoamphibole. Orthopyroxene is mostly resorbed and rimmed by coronitic orthoamphiboles. Garnets occur as porphyblasts and are zoned with higher pyrope content in cores than in rims. Geothermo-barometry results yield conditions of about $800-850^{\circ}C$, 6 kb and $500^{\circ}C$, 4 kb for early and retrograde stages of equilibration, respectively. According to available geochronological data, it is suggested that the granulite facies metamorphism occurred prior to 2.1-1.9Ga and that the area was superimposed by the high-grade (over $600-700^{\circ}C$) metamorphism between 1.9-1.7Ga, followed by cooling during uplift.

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Development and Application of Educational Contents for Software Education based on the Integrative Production for Increasing the IT Competence of Elementary Students (초등학생의 미래 IT역량 강화를 위한 융합적 산출물 기반 소프트웨어 교육용 콘텐츠 개발 및 적용)

  • Seo, Jeonghyun;Kim, Yungsik
    • Journal of The Korean Association of Information Education
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    • v.20 no.4
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    • pp.357-366
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    • 2016
  • The ability of computational thinking is a key competence that person of talent in the future should keep. Computational thinking is a serial process in which a problem is defined in context of computing, stages of abstraction are processed in order to find the efficient solution, the most appropriate process and resources for a solution are selected and combined through algorithms which use various concepts, principles and methods for automatic implementation of abstract concepts. It needs appropriate learning content in stage of elementary school. This study has verified the effect it made on improvement of learner's creative personality by developing and applying the educational content for software education based on the integrative production. The result of study confirmed that learning through the educational content for software education based on the integrative production affects improvement on learner's creativity positively and suggested a method of applying it to computing education in elementary school.

A method of determining pulse start points for reduction in computational amount of intercept array sonar (방수배열소나의 연산량 감소를 위한 펄스 시작점 산출 방법)

  • Do-Young Kim;Kee-Cheol Shin;Tae-Jin Jung;Min-Jeong Eom
    • Journal of the Institute of Convergence Signal Processing
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    • v.25 no.1
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    • pp.1-6
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    • 2024
  • The main function of intercept array sonar is to detect pulses radiated from enemy surface ships, submarines, and torpedoes. When a pulse is detected, it is a high risk situation for the own ship, so it is very important to find the target's location for the ship's maneuverability and survival. The target's location is calculated by finding the starting point of the pulse received form each sensor and calculating the time delay between sensors. In order to find starting point, the envelope of the signal is calculated and differential filtering is performed. However, since intercept array sonar has a high sampling frequency of the signal, the number of samples to be processed is large, so this process has a problem with a large computational amount. In this paper, we propose a pulse starting point calculation method using decimation for reducing computational amount. Simulations were performed while changing the decimation factor, and it was confirmed that computational amount was reduced. The proposed method is expected to be effective in real-time processing system and have advantages in resource utilization.

Evaluation of Airline Service Education Using the CIPP Model -focus on factors which influenced satisfaction and recommendation of the training program- (CIPP모형을 활용한 항공서비스교육 평가 -만족도 및 재추천에 미치는 요인을 중심으로-)

  • Park, Hye-Young
    • The Journal of the Korea Contents Association
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    • v.12 no.10
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    • pp.510-523
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    • 2012
  • The purpose of this study is to evaluate an airline service training program based on the CIPP model. Evaluation areas were divided into context, input, process, and product. We analyzed the factors which influenced program satisfaction and recommendation of the training program. Two hundred and one learners who participated in an airline service training program were selected for a survey. The results of this study are as follows. The factors which positively influenced training satisfaction were educational goals in context evaluation, interaction between learners and instructors, managing programs in process evaluation, and training performance in product evaluation. The factor which negatively influenced training satisfaction was human resources in input evaluation. On the other hand, the factors which positively influenced training recommendation were educational goal, assessing needs in context evaluation, interaction between learners and instructors, supporting programs in process evaluation, and training performance in product evaluation. The factor which negatively influenced training recommendation was assessing needs in context evaluation. The results of this study are expected to make an important contribution to the development of service training programs in airlines.

The Investigation on the Possibilities of Assumption Reversal Thinking Skill: Focusing on the Characteristics of the Idea Generation Process by University Students (역발상적 사고 기법의 가능성 탐색: 대학생들의 아이디어 생성 과정의 특징을 중심으로)

  • Kang, Seong-Joo;Park, Ji-Young;Yoon, Jihyun
    • Journal of The Korean Association For Science Education
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    • v.33 no.2
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    • pp.501-510
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    • 2013
  • In the creative problem solving processes, the core was to generate unique and various ideas. Thus, an assumption reversal thinking skill needed to be considered as a concrete method that could help students who have difficulties with generating ideas. In this study, we applied the assumption reversal thinking skill to university students and explored the characteristics of the idea generation process. On the basis of the results, we found that the assumption reversal thinking skill helped students generate new ideas, inducing their perspective changes. Therefore, we could ascertain the possibilities of the assumption reversal thinking skill as a thinking frame supporting students' idea generation. However, there is a need to develop methods for students to exclude prejudice by theoretical judgment, intervention of the value, and experience for fostering more effective assumption reversal thinking. Also, ways should be considered so that students would be able to cultivate task commitment and courage of implementing new ideas, bearing criticism from others.