• 한국BIM학회 논문집
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• 제6권2호
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• pp.1-11
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• 2016

In South Korea, there have been attempts to enhance BIM work practices in various aspects. Public Procurement Service(PPS) has recently published 'basic guidelines to improve BIM work practices in construction and facility management'. It defines roles and responsibilities of project members in their application of BIM. It also developed a set of modelling standards and guidelines for effective model creation, management and communication among BIM users. Moreover, numerous construction companies have tried to cultivate BIM specialized manpower throughout entire construction phases. However, there are still challenges faced by firms during BIM adoption. Therefore, this study aims to provide practical counsel for construction companies to help them create optimized facilities and deliver high performance by analyzing BIM-based domestic construction projects in Korea from 2009 and 2015. The study will investigate types of client, project, BIM application range, and application technology.

• 경영정보학연구
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• 제7권2호
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• pp.85-100
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• 2005

유비쿼터스 시대가 도래하고 있는 요즘 디지털 컨버전스의 한 형태인 모바일 뱅킹이 확산되고 있다. 본 연구는 최근, 금융기관의 전략적 경쟁도구로서 자리 잡고 있는 모바일뱅킹의 확산을 지원하기 위하여, 모바일 뱅킹의 수용에 영향을 주는 요인을 찾아보고자 하였다. 이를 위해 문헌고찰과 실증분석을 병행하여 모바일뱅킹 서비스의 특징 및 현황을 파악하고 모바일뱅킹의 사용에 영향을 미치는 요인들을 도출하여 분석하였다. 그 결과 지각된 유용성, 서비스 품질 그리고 즉시 접속성이 모바일뱅킹 사용에 영향을 미치는 요인으로 나타났고, 지각된 이용 편이성과 사회적 영향 요인은 그다지 영향을 미치지 않는 것으로 나타났다. 이러한 결과는 통신업체와 금융업체, 그리고 모바일 기술업체 등의 모바일 뱅킹 마케팅/기술 전략에 활용될 수 있을 것으로 기대되며 앞으로 좀 더 심도 깊은 추가적 연구와 토의가 이루어져야 할 것이다.

• 자원ㆍ환경경제연구
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• 제23권3호
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• pp.435-451
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• 2014

수도권 미세먼지 발생저감 대책의 일환으로, 노후화된 경유차에서 발생하는 주요 대기오염물질 배출을 저감하기 위한 수도권 운행경유차 공해저감 사업이 시행되었다. 본 사업의 사회적 경제성을 평가하기 위한 방법론을 제시하고, 주요 차량 배출저감장치의 유효성을 비교 분석하였다. 방법론적으로는 노후화된 차량의 차령이 유한하기 때문에, 본 사업의 평가에 적합하도록 만기유한 형태의 실물옵션 모형을 개발하였다. 분석 결과, 공해저감 사업의 사회적 경제성은 전반적으로 확보되며, 버스와 트럭별로 저감장치를 구분하여 선택적으로 이루어질 때 그 효과가 더욱 제고되는 것으로 나타났다.

• Asian Journal of Business Environment
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• 제10권3호
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• pp.13-22
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• 2020

Purpose: Vietnam's financial sector has grown substantially but microfinance institutions (MFIs) still face up many challenges in providing financial services to underserved customer segments, including small businesses, rural populations, and urban migrants. The recent worldwide explosion of fintech, including in Vietnam, promises to fill this gap. The purpose of this paper is to analyze fintech activities in microfinance sector and recommend for fintech adoption of MFIs in Vietnam. Research Design, Data and Methodology: The paper's data is mainly based on international organizations such as Asia Development Bank (ADB), Food and Agriculture Organization of the United Nations (FAO) and Vietnamese organizations such as Vietnam Microfinance Working Group. The authors suggest new directions for microfinance activities in Vietnam. Results: In recent years, the application of fintech in microfinance sector has brought many good results, such as improving the quality of products and services, easy access to many customer groups, and scaling up the operating model. Conclusion: MFIs in Vietnam have developed new products and services by applying fintech. The application of technology and digital solution has supported MFIs in Vietnam to gradually achieve targeted growth through expanding geographical inclusion/scale, enhancing product supply/provision, helping in-depth customer understanding as well as improving operational efficiency.

• 국제초고층학회논문집
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• 제10권4호
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• pp.251-263
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• 2021

Fire safety engineering is a critical specialization to include in the design of a tall building yet is often excluded from the Building Information Model (BIM) and integrated design process. The design of fire safety systems is interdependent with building/structural geometry, HVAC, mechanical, and electrical systems. A BIM is a 3D visual representation that stores data on these kinds of systems. The compatibility between BIM and fire safety design seems obvious yet has received a dearth of attention in structural (fire) engineering literature. The authors herein have reviewed over 40 recent papers on utilizing BIM for fire safety engineering, focusing on contemporary literature to obtain a more up-to-date review of the state-of-the-art. The resulting trends, technologies, research gaps, and methodologies are presented in this paper. Adoption of BIM in fire safety engineering is slow and behind other disciplines which may be improved if research involved more industry partners. For BIM technology to reach its potential, industry manufacturers need to provide high LOD fire BIM objects, fire engineers and researchers need to collaborate on future advancements, and building owners/management need to be educated on how to use the benefits provided.

• Toxicological Research
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• 제35권4호
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• pp.403-410
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• 2019

Curcumin, a hydrophobic polyphenol isolated from the Curcuma longa L. plant, has many pharmacological properties, including antioxidant, anti-inflammatory, and chemo-preventive activities. Curcumin has been shown to have potential in preventing nonalcoholic fatty liver disease (NAFLD). However, the low bioavailability of curcumin has proven to be a major limiting factor in its clinical adoption. Theracurmin, a highly bioavailable curcumin that utilizes micronized technology showed improved biological absorbability in vivo. The aim of this study was to investigate the role of theracurmin in modulating hepatic lipid metabolism in vivo. A fatty liver mouse model was produced by feeding mice a high fat diet (HFD; 60% fat) for 12 weeks. We found that treatment for 12 weeks with theracurmin significantly lowered plasma triacylglycerol (TG) levels and reduced HFD-induced liver fat accumulation. Theracurmin treatment lowered hepatic TG and total cholesterol (T-CHO) levels in HFD-fed mice compared to controls. In addition, theracurmin administration significantly reduced lipid peroxidation and cellular damage caused by reactive oxygen species in HFD-fed mice. Overall, these results suggest that theracurmin has the ability to control lipid metabolism and can potentially serve as an effective therapeutic remedy for the prevention of fatty liver.

• The Journal of Asian Finance, Economics and Business
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• 제8권7호
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• pp.393-402
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• 2021

This study aims to examine whether symmetric effects or asymmetric effects of exchange rates exist in determining the money demand in Indonesia. Simple-sum money and Divisia money were included in different models for comparison due to the financial developments in Indonesia. This study uses time-series data from 1996Q1 to 2019Q4 for the estimation. The nonlinear autoregressive distributed lag (NARDL) model is utilized to verify the asymmetric effects of exchange rates on money demand. The Augmented Dickey-Fuller and Phillips-Perron unit root tests were performed to verify the order of integration of the variables. The findings of this study revealed that the exchange rate is one of the most important determinants of money demand in Indonesia and the effect is asymmetric. The findings further indicated that money demand function, which incorporates Divisia monetary aggregate is parsimonious. Monetary targets such as money supply and interest rates are critical for monetary policy conduct to achieve inflation levels set by government. As the adoption of an inflation targeting framework needs to be in keeping with the flexible exchange rate system, the asymmetric effect of exchange rate changes can be used in exchange rate policy conduct to achieve financial system and price stability.

• 한국콘텐츠학회논문지
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• 제22권3호
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• pp.17-34
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• 2022

NFT는 최근 급성장하며 주목 받고 있는 신기술임에도 불구하고, 소비자 보호와 산업 진흥을 위한 연구는 부족한 실정이다. 이에 본 연구는 통합기술수용이론에서 제시된 요인들과 NFT의 특성을 반영할 수 있는 변인들이 NFT의 수용의도에 미치는 영향을 검증하고, 이를 토대로 NFT 자산유형과 암호화폐 투자경험에 따른 조절효과를 규명하였다. 연구대상을 NFT를 사용할 것으로 기대되는 잠재적 사용자로 한정해 연구를 진행하였고, 연구 분석 결과 성과기대, 네트워크 외부성, 혁신성은 수용의도에 긍정적인 영향을 미치지만, 암호화폐 투자경험과 NFT 자산 유형에 따른 조절효과는 제시되지 않았다. 본 연구를 통해 NFT의 인식이 아직은 사회 전반에 부족하고, 기술에 대한 이해도보다는 개인적 성향이 NFT에 보다 주요한 영향을 미치고 있음을 확인할 수 있었다.

• Steel and Composite Structures
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• 제49권1호
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• pp.91-107
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• 2023

An effective approach to promoting sustainability within the construction industry is the use of recycled aggregate concrete (RAC) as a substitute for natural aggregates. Ensuring the frost resilience of RAC technologies is crucial to facilitate their adoption in regions characterized by cold temperatures. The main aim of this study was to use the Random Forests (RF) approach to forecast the frost durability of RAC in cold locations, with a focus on the durability factor (DF) value. Herein, three optimization algorithms named Sine-cosine optimization algorithm (SCA), Black widow optimization algorithm (BWOA), and Equilibrium optimizer (EO) were considered for determing optimal values of RF hyperparameters. The findings show that all developed systems faithfully represented the DF, with an R² for the train and test data phases of better than 0.9539 and 0.9777, respectively. In two assessment and learning stages, EO - RF is found to be superior than BWOA - RF and SCA - RF. The outperformed model's performance (EO - RF) was superior to that of ANN (from literature) by raising the values of R² and reducing the RMSE values. Considering the justifications, as well as the comparisons from metrics and Taylor diagram's findings, it could be found out that, although other RF models were equally reliable in predicting the the frost durability of RAC based on the durability factor (DF) value in cold climates, the developed EO - RF strategy excelled them all.

• 정보보호학회논문지
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• 제34권4호
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• pp.735-746
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• 2024

컴퓨터 기술의 급속한 발전은 더 안전한 사용자 환경이 필요하게 되어, 모든 내부 및 외부 네트워크 활동을 검증하는 제로 트러스트 모델의 도입을 촉진했다. 본 논문은 제로 트러스트의 구현 및 지연 문제를 해결하기 위해 소프트웨어 정의 경계 기능을 활용한 효율적인 네트워크 트래픽 데이터 기반 동적 접근 제어 방법을 제안한다. 성능 평가 결과에 따르면 제안한 방법의 탐지 성능은 기존 방식과 유사하게 나타났지만 데이터 셋의 크기는 약 70% 감소했다. 그리고 적응형 제로 트러스트 검증 방식을 제안하여 데이터 셋 크기와 검증 시간을 각각 약 83%, 10% 줄이면서 종래의 방식과 유사한 탐지 성능을 유지했다.