• Advances in Computational Design
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• 제4권2호
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• pp.155-177
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• 2019

Operation and Maintenance (O&M) phase is the main contributor to the total lifecycle cost of a building. Previous studies have described that Building Information Models (BIM), if available with detailed asset information and their properties, can enable rapid troubleshooting and execution of O&M tasks by providing the required information of the facility. Despite the potential benefits, there is still rarely BIM with Mechanical, Electrical and Plumbing (MEP) assets and properties that are available for O&M. BIM is usually not in possession for existing buildings and generating BIM manually is a time-consuming process. Hence, there is a need for an automated approach that can reconstruct the MEP systems in BIM. Previous studies investigated automatic reconstruction of BIM using architectural drawings, structural drawings, or the combination with photos. But most of the previous studies are limited to reconstruct the architectural and structural components. Note that mechanical components in the building typically require more frequent maintenance than architectural or structural components. However, the building mechanical drawings are relatively more complex due to various type of symbols that are used to represent the mechanical systems. In order to address this challenge, this paper proposed a symbol recognition framework that can automatically recognize the different type of symbols in the building mechanical drawings. This study applied vector-based computer vision techniques to recognize the symbols and their properties (e.g., location, type, etc.) in two vector-based input documents: 2D drawings and the symbol description document. The framework not only enables recognizing and locating the mechanical component of interest for BIM reconstruction purpose but opens the possibility of merging the updated information into the current BIM in the future reducing the time of repeated manual creation of BIM after every renovation project.

• 과학기술학연구
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• 제19권1호
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• pp.53-90
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• 2019

본 연구는 공공연구기관에서 선도적으로 추진되고 있는 사회문제 해결형 연구개발 사례를 분석하고 그 의미를 논의한다. 사례 분석의 대상은 위생과 환경문제에 대응하여 자원순환형 음식물쓰레기 처리시스템을 구축하는 연구개발사업이다. 사례연구를 통해 드러난 특징은 다음과 같다. 동 사업에서는 빠른 시스템 개발을 위해 C&SD(connect and solution development) 전략을 사용하였다. 그리고 시스템의 경제 사회적 수용성을 높이기 위해 시민, 기존 업체, 지자체와 밀도 있는 네트워크를 형성했다. 또 법 제도 개선 문제도 작은 문제부터 해결해나가는 접근을 취했다. 하향식으로 새로운 시스템을 개발하는 방식보다는 문제해결을 빠르고 쉽게 하기 위해 기존의 기술과 주체들을 활용하는 재조합 혁신 방식을 택했다.

• Ocean Systems Engineering
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• 제9권2호
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• pp.191-218
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• 2019

The tower-platform interface and mooring system of floating offshore wind turbines (FOWTs) are some of the most critical components with significant influences on overall project costs. In addition to satisfying strength requirements, it is typical and vital to meet fatigue criteria for a service life of 25 years or more. Wind spectra characteristics considered in analysis can penalize fatigue designs, leading to unnecessary costs. The International Electrotechnical Commission (IEC, 2009) recommends the use of site-specific wind data (spectrum, turbulence intensity, etc.) in design of FOWTs, but for offshore sites it is often the case that such data is unavailable and land-based data are used as surrogates in design. For such scenarios, it is worth investigating whether such alternative approach is suitable and accurate, and understanding the consequence of the selection of wind spectral characteristics on fatigue design. This paper addresses the impact of the subsequent selection on fatigue responses of towerbase and mooring system in a FOWT, as a sequel to the paper by Udoh and Zou (2018) which focused on impacts on strength design. The 5 MW semi-submersible FOWT platform with six mooring lines implemented in the preceding study is applied in analysis. Results indicate significant variations in resulting fatigue life with considered wind parameters. Thus, it is critical to apply proper wind spectra characteristics for analysis and design of FOWTs to avoid unnecessary conservatism and costs. Based on the findings of this study, more explicit guidance on the application of turbulence intensities for IEC-recommended models in offshore sites could lead to more accurate load estimates in design of FOWTs.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.267-274
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• 2021

The article deals with problems of innovation development on a network basis, which require effective mechanisms of innovation communications. In research the organizational aspects of ICT infrastructure development for innovation networks sustainable development based on cooperative marketing principles is considered. The proposed research idea is based on the idea that ICT implementation is based not only on the operational approach for innovation management as a factor of efficiency of internal communications, but also on knowledge economy and post-industrial economy trends. Therefore, the purpose of study is to develop an ICT model of innovation infrastructure to improve its effectiveness (strategic character) and efficiency (operative character) through increasing the efficiency of network communication interactions. Creation of information space and communication tools to support innovation network sustainable development and cooperation activities in research is proposed to be solved with the help of specialized ICT platform. It is shown, that ICT platform of innovation cooperation innovation network is important tool for common work of participants. ICT platform is considered as an integrated information system designed to automate business processes related to the sustainable development of innovation network, segment management and integration with HEI information systems and industrial cooperation. The main factors that determine the need to use a special ICT platform for innovation network cooperation were considered. The main issues of concurrent engineering (C-technology) application in high-technology industries and innovation cooperation for integrated product development were studied.

• The Journal of Asian Finance, Economics and Business
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• 제8권9호
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• pp.273-285
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• 2021

This study estimates the financial value of return on investment (ROI) of research funds. Four simulation estimations are employed to measure ROI finance value that considers the outputs, outcomes, impacts and total ROI from the allocation input received. Research outputs, outcomes, and impacts can be quantitatively measured based on improvements to existing systems. In terms of input, the Malaysian government has allocated MYR301,350,000 for fundamental research in the 2021 budget compared with 2019, up 9.5 percent from 2019. It brings up the question: To what extent does the input of research funds allocated by the government yield a good return in outputs, outcomes, and impacts to the academic community, society, and country? The result of total ROI shows around MYR7 return is generated by researchers for each Malaysian ringgit channeled by the funder. More specifically, for a research project, it is more difficult to produce impacts and outcomes compared to research outputs. The positive return is evidence that all the allocated funds are beneficial to the stakeholders. The government can apply this approach in calculating ROI for evaluation and fund allocation to universities. Furthermore, the positive financial value of research output, outcome, and impact automatically contribute to a positive innovation environment in Malaysia.

• 한국산학기술학회논문지
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• 제22권2호
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• pp.721-732
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• 2021

본 연구는 농업 R&D의 추세를 살펴보고자 텍스트마이닝 기법을 활용하여 농업 R&D에 해당하는 키워드를 분석하였다. 분석자료는 NTIS의 국가연구개발사업 과제정보를 활용하였으며, 2003년부터 2018년까지의 농업 R&D의 주요 키워드를 연도별 및 연구개발단계별로 구분하였다. 텍스트마이닝을 위해 키워드의 TF-IDF를 계산하여 점수별로 순위를 매기었으며, 유사한 키워드별로 그룹화하여 해석하였다. 주요 분석 결과는 다음과 같다. 첫 번째, 신기술의 도입과 외부 환경에 변화에 따른 농업 R&D 트렌드가 변화해가고 있다. 시간이 흐를수록 새로운 키워드가 대두되고 있으며, 기초연구 단계에서는 '기후변화'가, 응용연구 단계에서는 'ICT'와 '스마트팜'이, 개발연구 단계에서는 '수출' 키워드가 주되게 등장하고 있다. 두 번째, 연구개발 단계에서 시차를 가지고 키워드 변화가 나타나고 있다. 기초연구-응용연구-개발연구 순으로 주요 키워드가 변화하고 있으며, 대표적으로 '기후변화'와 '신품종' 키워드가 연구개발단계별로 연계되어 있었다. 세번째, 농업 R&D의 대표적인 키워드는 '벼' 키워드로 나타났다. 그러나 '녹색 및 기후변화 대응'과 '가공 및 유통기술' 같이 국내외 농업 환경 변화에 따라 연구의 방향성과 목적이 변화하고 있었다.

• 대한건축학회논문집:계획계
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• 제35권9호
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• pp.29-40
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• 2019

The concept of smart city is understood as an indispensable component of urban regeneration projects in small cities in terms of providing a better urban environment and efficient living systems with a limited budget. Recently, the Korean government revised the law that related to the construction of the smart city and started to implement the smart city concept not only to new-large urban development but also to small-existed regeneration projects. However, it is difficult for small and medium-sized cities that are suffering from the insufficient professional workforce; knowledge supports for high-tech and lack of professional networks to proceed smart city planning and project that containing regional characteristics. This paper aims to examine the effective way of urban regeneration for small and medium-sized cities through smart city planning and strategy. As an important case, this paper looks at the 'Smart City Challenge' competition that was hosted by the US Department of Transportation in 2015. It examines the background and operation process of the smart city challenge competition, and then analyses each city's strategy and characteristics of seven finalists. This paper highlights the several key lessons to Korean cities: 1) the importance of national government's support in financial and professional resources; 2) the cooperation with local governments and IT corporations which provides realistic and detailed technical solutions; 3) the holistic and integrated approach to urban regeneration starting from transportation issues; 4) the necessity of the government's clear visions and guidelines toward the smart city.

• 한국교육학연구
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• 제23권1호
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• pp.379-404
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• 2017

본 연구는 대학의 성인전담 단과대학의 운영방안을 구체적이고 실질적인 차원에서 모색하고자 하였다. 이를 위해 성인학습자를 위한 단과대학 추진 배경으로 성인학습자의 능력개발 요구에 대한 기회 확대, 고등평생교육제도 실행에서의 문제, 현행 평생 학습중심대학 사업의 한계 등을 분석하였다. 그리고 성인전담 단과대학 운영의 우수 사례로 미국 하버드대학과 시카고대학, 영국의 워릭대학을 선정하여 각 교육과정 구성과 운영 방법 등을 살펴보고, 이를 기초로 전문가 면담을 진행하여 성인전담 단과대학의 운영방안을 제안하였다. 그 결과 대학 조직개편의 운영철학으로 대학책무성과 정책적 효율성, 대학 특성화, 그리고 지속적이고 안정적 체제의 구축을 제시하고 다양한 입학진입트랙의 제공, 사전 준비교육과정의 제공을 통한 학습준비도의 확보, 선행학습인정 범위 및 방법, 전공과 수업방식, 학사제도 및 재정지원을 포함한 기타 성인학습자 맞춤형 서비스 등을 제안하였다.

• 한국콘텐츠학회논문지
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• 제21권6호
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• pp.733-743
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• 2021

본 연구에서는 영국과 호주의 고등교육 포용성 정책에 대한 비교 분석을 통하여 우리나라의 고등교육 분야지속가능발전 목표(SDG 4.3)의 달성을 위한 시사점을 제안하고자 하였다. 영국과 호주를 분석대상으로 선택한 이유는 양국 모두 2000년대 초반부터 대학생활의 전주기(입학~졸업) 측면에서 고등교육의 포용성을 강화하는 정책들을 추진하고 있기 때문이다. 양국 사례 분석을 통해 도출한 우리나라의 SDG 4.3 실현을 위한 정책적 시사점은 다음과 같다. 첫째, 고등교육의 포용성 강화를 위해서는 소외계층 개념을 '소득 수준'에서 탈피하여 '인종, 지역, 문화 등'으로 확대하여 접근할 필요가 있다. 둘째, 소외계층에 대한 고등교육 지원 범위를 입학기회의 확대로부터 대학생활 적응과 진로개척 등을 포함한 '대학생활의 전주기'로 확장할 필요가 있다. 셋째, 소외계층 집단별로 경험하는 고등교육 장벽에 대한 조사를 토대로 집단별 특성을 고려한 맞춤형 지원을 제공할 필요가 있다. 마지막으로 정부 차원에서 소외계층 고등교육 지원을 위한 지역 파트너십 구축을 지원할 필요가 있다.

• Journal of Ecology and Environment
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• 제45권4호
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• pp.313-327
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• 2021

Background: Citizen science is becoming a mainstream approach of baseline data collection to monitor biodiversity and climate change. Dragonflies (Odonata) have been ranked as the highest priority group in biodiversity monitoring for global warming. Ischnura senegalensis Rambur has been designated a biological indicator of climate change and is being monitored by the citizen science project "Korean Biodiversity Observation Network." This study has been performed to understand changes in the distribution range of I. senegalensis in response to climate change using citizen science data in South Korea. Results: We constructed a dataset of 397 distribution records for I. senegalensis, ranging from 1980 to 2020. The number of records sharply increased over time and space, and in particular, citizen science monitoring data accounted for the greatest proportion (58.7%) and covered the widest geographical range. This species was only distributed in the southern provinces until 2010 but was recorded in the higher latitudes such as Gangwon-do, Incheon, Seoul, and Gyeonggi-do (max. Paju-si, 37.70° latitude) by 2020. A species distribution model showed that the annual mean temperature (Bio1; 63.2%) and the maximum temperature of the warmest month (Bio5; 16.7%) were the most critical factors influencing its distribution. Future climate change scenarios have predicted an increase in suitable habitats for this species. Conclusions: This study is the first to show the northward expansion in the distribution range of I. senegalensis in response to climate warming in South Korea over the past 40 years. In particular, citizen science was crucial in supplying critical baseline data to detect the distribution change toward higher latitudes. Our results provide new insights on the value of citizen science as a tool for detecting the impact of climate change on ecosystems in South Korea.