• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.32-36
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• 2015

This study explores the issue of program management consortia involving multinational participants. The aim of this research was to leverage advantages in program management (PM) skills and PM model improvement in product line construction in mega scale construction programs, typically funded by public funds. Such ventures involve multinational parties using dedicated partnering based on a program management consortium (PMC) to reduce confrontation between parties in complex circumstances, allowing an open and non-adversarial approach to project management. This research also seeks to implement an ongoing feedback program of best practices and lessons learned to minimize the repetition of mistakes and to reduce costs in sequenced construction. Recently, the Korean government has planned to undertake three large new projects: the Korean Peninsula major river maintenance, the reclamation of Se-Mangum, and the Science/Business City. This paper starts by providing a framework for the cost-reduction strategy for the United States Forces Korea (USFK) Relocation Program, which will be funded with public funds and a private fund investment (PFI) that combines programs executed by two governments as owners and multinational stakeholders, joined in the PMC. The establishment of project-oriented consortia is an innovative and non-adversarial approach to massive international construction projects. Such projects have used various tools effectively and skillfully. This experience may offer an opportunity to practice new and advanced program management delivery methods, and it is expected that Korea will gain a competitive advantage in the international construction market.

• 해양환경안전학회지
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• 제27권1호
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• pp.97-112
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• 2021

본 연구에서는 석유화학제품 산적운송선(화학유조선)에 의한 해상운송 과정에서 발생한 위험·유해물질(HNS) 관련 해상화학사고에 대하여 국내 및 국외의 주요 사례를 조사·분석함으로써 얻은 교훈을 소개하고, 이러한 교훈을 바탕으로 국내 해상HNS 교육과정 개선방안을 제시하였다. 6건의 사고사례를 통하여 얻은 교훈을 1) 사고관련정보, 2) 안전, 3) 오염, 4) 대응, 5) 구난, 6) 기타와 같은 6개 분야로 분류하였다. 각 분야의 세부항목별로 요약된 교훈을 바탕으로 해양환경교육원(MERTI) 유해액체물질운반선 해양오염방지관리인 교육과정을 현행 8개 교과목(16시간)의 2일간 교육을 16개 교과목(24시간)의 3일간 교육으로 개선하는 방안을 제시하였으며, 또한 해양경찰교육원(KCGA) 전문교육 해양화학사고대응 과정을 현행 15개 교과목(35시간)의 5일간 교육을 32개 교과목(48시간)의 6일간 교육으로 개선하는 방안을 제시하였다. 이러한 연구결과는 해상화학사고 대응에 관한 경험과 교훈을 서로 공유하는 데에 기여하고, 해상HNS사고에 대비한 대응 인력 교육·훈련과정 개선의 기초자료로 활용될 수 있을 것으로 기대된다.

• 한국초등과학교육학회지:초등과학교육
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• 제32권3호
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• pp.269-284
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• 2013

The purpose of this study was to investigate the epistemic process in elementary science classrooms by analyzing classroom discourse as a epistemic practice. Data came from four elementary teachers in the form of video-recordings. A total of 12 elementary science lessons were examined to reveal the discursive modes and sequences in which the teacher and students participated when they constructed and developed scientific knowledge during the lessons. Three representative discursive patterns were found in the elementary science lessons explored: (i) 'Retrieving-Retrieving-${\cdots}$' by which well-established scientific knowledge was retrieved repeatedly, (ii) 'Exploring-Building on the Shared' which allowed introducing new scientific knowledge based on the scientific phenomena explored by the teacher and students together through practical work, and (iii) 'Retrieving-Elaborating/Reformulating/Narrating' or 'Building on the Shared-Elaborating/Reformulating/Narrating' which expanded and strengthened scientific knowledge already learned. These discursive patterns were suggested as discursive-epistemic mechanisms employed frequently in the epistemic process in elementary science lessons and as a basis for defining epistemic cultures of science classrooms.

• Journal of Ecology and Environment
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• 제47권4호
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• pp.187-192
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• 2023

The United States (US) National Science Foundation's (NSF's) National Ecological Observatory Network (NEON) is a continental-scale observation facility, constructed and operated by Battelle, that collects long-term ecological data to better understand and forecast how US ecosystems are changing. All data and samples are collected using standardized methods at 81 field sites across the US and are freely and openly available through the NEON data portal, application programming interface (API), and the NEON Biorepository. NSF led a decade-long design process with the research community, including numerous workshops to inform the key features of NEON, culminating in a formal final design review with an expert panel in 2009. The NEON construction phase began in 2012 and was completed in May 2019, when the observatory began the full operations phase. Full operations are defined as all 81 NEON sites completely built and fully operational, with data being collected using instrumented and observational methods. The intent of the NSF is for NEON operations to continue over a 30-year period. Each challenge encountered, problem solved, and risk realized on NEON offers up lessons learned for constructing and operating distributed ecological data collection infrastructure and data networks. NEON's construction phase included offices, labs, towers, aquatic instrumentation, terrestrial sampling plots, permits, development and testing of the instrumentation and associated cyberinfrastructure, and the development of community-supported collection plans. Although colocation of some sites with existing research sites and use of mostly "off the shelf" instrumentation was part of the design, successful completion of the construction phase required the development of new technologies and software for collecting and processing the hundreds of samples and 5.6 billion data records a day produced across NEON. Continued operation of NEON involves reexamining the decisions made in the past and using the input of the scientific community to evolve, upgrade, and improve data collection and resiliency at the field sites. Successes to date include improvements in flexibility and resilience for aquatic infrastructure designs, improved engagement with the scientific community that uses NEON data, and enhanced methods to deal with obsolescence of the instrumentation and infrastructure across the observatory.

• 한국수학교육학회지시리즈A:수학교육
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• 제56권1호
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• pp.1-17
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• 2017

The purpose of this study is to analyze the differences between the cognitive load of mathematics textbooks based on storytelling and traditional mathematics textbooks that are presented to students. In order to verify this, we have selected two 4th grade classes in elementary school that were identified as a homogeneous group through prior testing, and thus were separated into experimental group and comparative group. Then, without the teacher's lessons, the experimental group learned from mathematics textbooks based on storytelling and the comparative group learned from traditional mathematics textbooks. Afterwards, the two groups' cognitive load was measured through a questionnaire, and the following results were obtained: In the 'mental effort' and 'self evaluation' categories, the students that learned from the mathematics textbook based on storytelling showed higher scores than the students that learned from the traditional mathematics textbook. also there was statistically significant difference in some items. However, no statistically significant difference was found in the remaining categories 'task difficulty', 'self evaluation', and 'material design'.

• 농업과학연구
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• 제38권3호
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• pp.593-606
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• 2011

Brand is becoming more important as a way to achieve differentiation since consumers tend to buy brands not products. This study primarily aims to determine the critical success factors of two world famous fruit brands, Sunkist and ZESPRI, and to present management strategies to enhance the value of domestic fruit brands. The lessons learned from the case studies of Sunkist and ZESPRI reconfirm the importance of essential factors for a successful fruit brand, that is, quality control, steady supply, advertising and promotion, recipes and processed products, handling items and regional boundaries.

• 시스템엔지니어링학술지
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• 제6권2호
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• pp.59-64
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• 2010

국내에 다양한 시스템 엔지니어링 전산지원도구(Computer Aided tools for Systems Engineering)가 도입되고 도구의 기능이 향상됨에 따라 시스템 엔지니어링 전산지원환경을 구축하는 사례가 늘어나고 있다. 전산지원환경을 구축하기 위해서는 기존의 국내외 시스템 엔지니어링 표준 및 지침에서 언급되지 않은 구체적인 업무에 대한 고려가 요구되기 때문에, 많은 노력과 시간이 소요된다. 시스템 엔지니어링 본 연구에서는 국내 연구소 및 기업의 시스템 엔지니어링 전산지원환경을 구축하는 과정에서 습득된 문제점과 경험적 교훈(lessons learned)을 정리하였다.

• 국제초고층학회논문집
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• 제5권1호
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• pp.63-70
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• 2016

The use of outriggers with dampers (the damped outrigger concept) has been shown to be a cost effective method of adding structural damping to a high rise building, and has been described in previous work by the author. This paper further develops the methods used to design such systems and highlights lessons learned in their application. This includes calculation methods, a review of subsequent research from others, and discussions regarding code-compliance.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 가을 학술발표회 논문집
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• pp.329-336
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• 2001

The numbers of geogrid-reinforced walls are widely used in Korea. This papers present the results of two failure case histories of geogrid-reinforced segmental retaining walls. The geological background of the construction sites, detailed construction sequences, and the amount of rainfall were examined. The failure of these reinforced walls are caused by the improper drainage system and foundation treatment, too sharpened curvature of corner work, and too high height of wall.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.1053-1057
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• 2005

The Taiwan government agencies have been promoting e-commerce for the construction industry with several initiatives since 2000. The development of standards for the procurement information exchange among government agencies, construction firms, and suppliers for the construction industry is one of the major initiatives and begins to produce tangible results. This paper reviews the effort for developing the information exchange standards and compares the development strategies used in different segments in the supply chain. Lessons learned during the development course are also discussed.