• 한국지반신소재학회논문집
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• 제19권4호
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• pp.85-93
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• 2020

본 연구에서는 오염된 지반의 정화 시에 발생되는 침하량 계측에 대한 VMS의 적용성을 평가하기 위하여, 오염지반의 침하에 대한 실내실험을 수행하였다. 즉, 수치사진측량기법을 기반으로 개발된 3D-Visual Monitoring System(VMS)와 기존 계측장비인 토탈스테이션을 이용하여, 오염지반 침하에 대한 계측결과를 비교하였다. 실험결과, 중금속으로 오염된 지반의 침하량은 친수성 필터가 적용된 실험조건에서 많이 발생하였다. 계측결과를 바탕으로 VMS의 오차범위를 산정한 결과, 최소 및 최대 오차범위는 각각 ±0.36mm와 ±0.87mm 산정되었고, VMS의 오차량은 모든 실험조건에서 오차범위를 만족하는 것으로 확인되었다. VMS의 평균오차율을 산정한 결과, 소수성 필터조건에 비하여 친수성 필터 조건에서 낮은 평균오차율을 보였다. 이를 바탕으로 오염된 지반의 침하량 계측에 있어서 VMS의 적용이 가능한 것으로 평가되었다.

• 유통과학연구
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• 제12권7호
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• pp.23-35
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• 2014

Purpose - This study aims to explore the effects of social responsibility activities and business ethics practices on corporate trust and loyalty in the context of a large retail distribution business. Research design, data, and methodology - The data collected was analyzed using PASW Statistics 18.0. In order to verify the demographic characteristics, frequency analysis was conducted on the data. Results - The results of the study were as follows. First, social responsibility activities had a significant effect on corporate trust. Second, both corporate social responsibility activities and business ethics practices had significant effects on loyalty. Third, corporate trust had a significant effect on loyalty. Fourth, corporate social responsibility activities and consumer protection activities had a partial mediation effect, while environmental protection activities and social contribution activities had complete mediation effects. Conclusions - This study clarified and explained the factors of corporate social responsibility activities and business ethics practices that customers value, and analyzed the influence of these factors on corporate trust and loyalty.

• Smart Structures and Systems
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• 제3권1호
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• pp.69-88
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• 2007

In this study, Field-Programmable Gate Arrays (FPGAs) are investigated as a practical solution to the challenge of designing an optimal platform for implementing algorithms in a wireless sensing unit for structuralhealth monitoring. Inherent advantages, such as tremendous processing power, coupled with reconfigurable and flexible architecture render FPGAs a prime candidate for the processing core in an optimal wireless sensor unit, especially when handling Digital Signal Processing (DSP) and system identification algorithms. This paper presents an effort to create a proof-of-concept unit, wherein an off-the-shelf FPGA development board, available at a price comparable to a microprocessor development board, was adopted. Data processing functions, including windowing, Fast Fourier Transform (FFT), and peak detection, were implemented in the FPGA using a Matlab Simulink-based high-level abstraction tool rather than hardware descriptive language. Simulations and laboratory tests were carried out to validate the design.

• 동아시아경상학회지
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• 제10권3호
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• pp.41-50
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• 2022

Purpose - Through multinational corporate ethics and environmental, social, and governance (ESG), various policy and strategic countermeasures for transparent management in the management and economic fields are presented. Research design, data, and methodology - A literature review is conducted to find important areas for transparent management and to summarize and present transparent management countermeasures based on simple brainstorming opinions from experts. Result - Issues facing transparent management are presented. In particular, multinational enterprises present cases involving prevention of transfer prices and tax avoidance in relation to Industry 4.0. Additionally, a plan is presented to establish a corruption-free economic system through the practice of ESG transparency, ethical management of social enterprises, and transparent management. Conclusion - According to the brainstorming opinions of experts, ESG management and ethical management should be the cornerstone of transparent management in the future. Therefore, it is necessary to institutionally supplement the imposition of digital taxes on fourth industrial companies.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.60-62
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• 2015

The BIM-based architectural design can be the optimal method to improve all sectors of construction industry and reduce environmental impact through digital technologies. The goals and effects of BIM needs in LH to be newly planned based on the experience of public sectors, which will ultimately contribute to maximization of effectiveness. Referring the excellent case in the UK, the current BIM standards according to maturity level 2 handle the contents related to modeling, collaborative data production, data management and assure BIM data have to be used from building construction to operation and maintenance of buildings. Therefore the strategy for the utilization of BIM for construction projects in LH consisted of three steps; first, the minimization of defects via BIM: second, strengthening the competitiveness of construction and asset management: third, upgrading the system of building production and maintenance control. After this trial, LH can accumulate know-how for building construction to be more costeffective and competitive.

• 지질공학
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• 제4권1호
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• pp.43-55
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• 1994

GIS를 이용하여 청주지역을 대상으로 다양한 지질공학 분석들이 통일된 종합 시스템내에서 실시되었다.지질재해,특히 산사태의 재해(hazard)발생과 피해(risk) 예상분석, 개발지역에 대한 토공량 자동분석과 절취 난이도분석 모델 개발 등 종합적인 지질공학 분석들이 당연구 그룹에 구현된 환경지질정보시스템내에서 아주 경제적으로 처리되었다. 실제로 지반 처리를 위한 지질공학연구는 많은 실내 실험자료들을 필요로 한다.그러나 GIS는 기본적인 지질공학 자료들로 부터 다양한 GIS지도모형연구를 통하여 복잡한 분석단계들을 점차 단순화 시킴은 물론,우리가 지금까지 생각해온 지질공학 기술들을 변화시키고,자료들은 조직화하는 능력이 있다.본 연구를 통하여 하나의 통일된 시스템하에서 분석된 GIS의 다양한 지질공학 연구들은 이러한 기본 생각들을 실제로 증명하는 계기가 됨은 물론 지질공학분야에 있어서 GIS의 활용도를 높일 것이다.산사태 분석 모델은 당연구그룹에서 1992년에 개발한 기존 모델을 연구 지역의 특성을 고려하여 재구성 시켰으며, 첨단 산업기지 예정지에서의 절취 난이도 분석모델은 실제 토목공사에 직접 활용될 수 있음은 물론 현재 당연구그룹에서 개발 진행중인 지질공학 분석용 GIS전문가 시스템의 일부이다.

• 수산해양기술연구
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• 제52권3호
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• pp.263-270
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• 2016

This study is aimed to design the mechanical gascyclone precipitator with an outstanding collection efficiency as one of ways to reduce exhaust gas of small-scale vessels. It estimated fine particles generated from diesel engines which has become one of the biggest environmental issues currently. Specifically, it quantitatively analyzed the flowing process from the cyclone gas exit; a duct via part to the collecting part of Cylindrical lower using DPIV (Digital Particle Image Velocimetry). Since the gas inlet height part became wider the previous theoretical dimensions, internal fluid characteristics of cyclone where the speed of internal swirl had been slow were investigated by temporary streamline of fine particles at $14-20{\mu}m$. The results showed that collecting efficiency was three times higher than the conical type utilized previously. In addition, this study supplemented imprecision problems from the previous theoretical equation and CFD interpretation with an experimental method. It also provided a basic data to design the cyclone precipitator by size of diesel engines for vessels.

• 보건의료산업학회지
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• 제13권4호
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• pp.33-44
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• 2019

Objectives: This study aimed to analyze the papers on nursing in the KJHSM (Korean Journal of Health Service Management) (2007-2018), to identify the research trends and to help the future development of nursing research. Methods: The data collection was carried out from September 1, 2019 to September 30, 2019. The 78 copies of the original text were provided by the KSHSM website, DBpia, and NDSL (National Digital Science Library) electronic database. Results: Forty-seven studies had a non-experimental design, with most having a descriptive research design (89.3%). The most common participants were nurses (55.7%) and nursing college students (26.1%). A questionnaire was the most commonly used research tools (96.2%) and data collection methods (95.0%). The major keywords were the terms included in the environmental domain among the meta-paradigms of nursing (43.6%). Conclusions: In order to expand the quantity and quality of nursing science in the KSHSM, efforts are needed to improve the quality of research participants, research tools, and sampling methods.

• 한국전자통신학회논문지
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• 제16권3호
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• pp.437-442
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• 2021

본 연구는 우주 인증용 대전자전중계기용 전원공급기의 설계 및 구현에 대해 기술하였다. 위성버스의 PLDIU(Payload Distribution and Interface Unit)와 전원공급기의 인터페이스를 제시하였고, 우주환경에 대한 WCA(Worst Case Analysis)를 통하여 SEU(Single Event Upset) 등의 발생에 대한 회로 오동작 가능성을 최소화 시켰다. 발사환경 시 발생하는 진동 및 우주 방사능에 의한 TID(Total Ionizing Dose)에 대한 시뮬레이션을 통해 신뢰성 있는 전원공급기를 설계하였으며, 제작 후 우주환경시험을 통하여 해당 구성품에 대한 환경 시험 규격에 만족함을 확인하였다.

• 대한건축학회논문집:계획계
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• 제34권11호
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• pp.67-74
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• 2018

With the rapid increase in the elderly population, numerous problems arise related to the decreased cognitive function such as the declines of reaction time and concentration which are both resulting from ageing. Recently, ICT-based smart home and other residential services are being developed as a means of complementing human cognitive functions, but the elderly, who are in most cases digital-illiterate, find it hard to utilize these tools actively and if so it usually takes longer time and endeavor for the elderly to be familiarized with ICT devices. In this context, this study suggests a configuration of the holographic system in houses that complement the cognitive function of the elderly with the consideration of the interaction with the vision which is a critical function in the cognitive process. The method of this study consists of a literature review on topics including the characteristics of the cognitive function among the elderly, holographic technology and residential services; a configuration of residential services for different space types, depending on the aspects of the cognitive function among the elderly; and finally a suggestion of a holographic system configuration and application depending on various scenarios.