• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 가을 학술발표회 논문집
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• pp.103-108
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• 1999

This paper describes development of a new automated real-time system which preforms measurement data reduction and management, geotechnical backanalysis, and feedback design for embankment construction on soft ground. Such a system can be an effective, useful and economical tool for managing a large site development on soft ground. The system consists of data base system to characterize soil properties and identify instrumentation, analysis system for ground behavior and stability coupled with automatic monitoring system, and feedback design system which is a new technique to reflect the analysis of measured ground behavior against original design.

• 대한안전경영과학회지
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• 제7권5호
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• pp.213-231
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• 2005

Assignable causes producing temporary deviation from the underlying system can influence on process adjustment and process monitoring in dynamic feedback control system. In this paper, the influence of assignable causes on EWMA forecasts and compensatory variables are derived for a dynamic feedback control system. An example is presented to confirm the impact numerically through the analysis of a data.

• 디지털콘텐츠학회 논문지
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• 제15권2호
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• pp.219-225
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• 2014

현대는 기업 간의 경쟁이 날로 심화되어 가고 있는 가운데 효율적인 경영을 위해서는 시시각각으로 변하는 고객의 니즈를 파악하여야 하기 때문에 그 어느 때 보다도 고객피드백이 필요한 시대이다. 최근 스마트 폰의 출현과 트위터, 페이스북과 같은 SNS의 발달로 실시간으로 다양한 고객의 목소리가 증가하면서 고객의 피드백을 파악하기 위해 이러한 빅 데이터를 이용 하는 것이 매우 효율적인 방법으로 부상하고 있다. 빅 데이터의 데이터 수집과 분석은 버즈(Buzz) 모니터링이라는 시스템을 통해 이루어지고 있다. 본 연구에서는 고객자체가 기업의 자산이며 서비스 산업의 대표라 할 수 있는 호텔기업의 CRM을 위한 방법으로 고객의 피드백을 파악하기 위해 빅 데이터를 활용하는 방법을 제안한다. 실제 국내 3개의 대표적인 특급호텔을 대상으로 빅 데이터를 이용하여 버즈모니터링 시스템을 통해 얻은 호텔고객평판 사례를 제시하여 그 결과를 분석하고 시사점을 고찰해 본다.

• 대한안전경영과학회지
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• 제2권4호
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• pp.19-32
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• 2000

Assignable causes producing temporary deviation from the underlying system can influence on process adjustment and process monitoring in dynamic feedback control system. In this paper, the impact of assignable causes on EWMA forecasts and process adjustment which is based on the EWMA forecasts are derived for optimum control methods.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.9-12
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• 2005

In this paper. we offer a new monitoring system that controls all of the windfar. it can also apply use general wind turbine systems and real meteorological tower. We propose a hierarchical releiable monitoring system connected by wireless communication channels between monitoring host computer and modular slave measuring subsystems. Our system has two hierarchical subsystems: slave measuring systems, and supervisory host computer. We design and implement that the slave measuring subsystems is placed in meteorological tower and wind turbines, and the supervisory host computer in safety zone, The micro-controller in slave measuring system is duplicated using cold-standby method for reliability. The host computer and slave system constructs a feedback system, with wireless communication channel between them. For monitoring and command function, the supervisory computer is implemented with a Personal Computer using graphic user interface. Consequently. we can get a reliable but economic system.

• 환경영향평가
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• 제9권4호
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• pp.315-322
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• 2000

Environmental Impact Assessment(EIA) was first formally established in the Korea in 1981. Subsequently there has been a rapid growth in EIA activity, and over one hundred fifty environmental impact statements are now published in Korea each year. Although EIA now has almost 20 years of history in the Korea, elsewhere the development of roles and practice is more recent. Development is moving apace in many countries, including the Japan and the EU Member States. Such progress has not been without its problems, and a number of the current issues in EIA-scope of the assessment, the relative roles, the quality of assessment and monitoring and auditing after decision, and so on- are highlighted. So the purpose of this article is to reform the EIA roles and process, in extending the scope of activity, and assessing effectiveness. This article suggested improving the effectiveness of project assessment, widening the scope: stretegic environmental assessment, and extending EIA to project design process, environmental monitoring and feedback system.

• 한국의료질향상학회지
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• 제24권1호
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• pp.1-8
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• 2018

Objectives: The post-accreditation management system should be systematic in order to ensure that the accredited hospital continues to strive for patient safety and quality improvement during the accreditation period. In this study, we compare the post-accreditation management system in four countries (the U.S., Australia, Japan, and Korea) and provide suggestions for improving the post-accreditation management system in Korea. Results: All four countries had the post-accreditation management system, and the basic structure of the system in Korea was similar to that of others. However, there were differences in the practical operation processes and the use of the results. In the operation process, Korea's monitoring relies on voluntary reporting by accredited hospitals. In terms of results utilization, analytical feedback to data submitted by the acrredited hospital is not provided in Korea. Conclusions: It is necessary to establish a continuous monitoring system for post-accreditation changes and provide feedback to accredited hospitals. It is also necessary to perform a survey without advance notice and establish a firm legal basis for monitoring.

• Journal of Welding and Joining
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• 제21권4호
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• pp.80-86
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• 2003

Arc-spot welding is generally used in joining of precise parts such as case and core in electric compressor. It is important to control joining deformation in electric compressor because clearance control of micrometer order is needed for excellent airtightness and anti-nose. The countermeasures for this deformation in field have mainly been dependent on rule of try and error by operator's experience because of productivities. For control this deformation problem without influence on productivities, development of exact simulation model should be needed. In this study, on the basis of previous study, the analysis model io predict deformation of precise order in arc-spot welded structure with non-uniform stiffness is brought up through feedback and tuning between monitoring data and analysis results. For this, deformation monitoring system was built and boundary condition considering mechanical melting temperature was applied.

• Journal of Mechanical Science and Technology
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• 제20권10호
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• pp.1680-1690
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• 2006

As a promising and novel manufacturing technology, laser aided direct metal deposition (DMD) process produces near-net-shape functional metal parts directly from 3-D CAD models by repeating laser cladding layer by layer. The key of the build-up mechanism is the effective control of powder delivery and laser power to be irradiated into the melt-pool. A feedback control system using two sets of optical height sensors is designed for monitoring the melt-pool and real-time control of deposition dimension. With the feedback height control system, the dimensions of part can be controlled within designed tolerance maintaining real time control of each layer thickness. Clad nugget shapes reveal that the feedback control can affect the nugget size and morphology of microstructure. The pore/void level can be controlled by utilizing pulsed-mode laser and proper design of deposition tool-path. With the present configuration of the control system, it is believed that more innovation of the DMD process is possible to the deposition of layers in 3-D slice.

• 한국환경복원기술학회지
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• 제24권6호
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• pp.97-107
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• 2021

Abnormal climate caused by climate change causes enormous social and economic damage. And such damage and its impact may vary depending on the location and regional characteristics of the region and the social and economic conditions of local residents. Therefore, it is necessary to continuously monitor whether there are indicators that are weaker than other regions among the detailed indicators that constitute the risk, exposure and vulnerability of climate change risk. In this study, the concept of climate change risk was used for heatwave to determine regional inequality of climate change risk. In other words, it was judged that inequality in climate change risk occurred in regions with high risk but high exposure and low vulnerability compared to other regions. As a result of the analysis, it was found that 13 local governments in Korea experienced regional inequality in climate change risk. In order to resolve regional inequality in climate change risks, the current status of regional inequality in climate change should be checked based on the analysis proposed in this study, there is a need for an evaluation and monitoring system that can provide appropriate feedback on areas where inequality has occurred. This continuous evaluation and monitoring-based feedback system is expected to be of great help in resolving regional inequality in climate change risks.