• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2006년도 춘계학술대회
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• pp.400-404
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• 2006

The environmental problem come because the demage cost of environmental pollution is not properly reflected in market price. The government regulations for market is justified to solve the problem. The policy needs a close analysis of environmental, economical effect for the point of time, methods, rational decision making of the government regulations. Especially, we need to assume and analyze about social expenses by environmental pollution and policy execution. The cost-benefit analysis about environmental pollution is used to support decision making. The value of benefit about damage by environmental pollution or about improvement changes a monetary unit through the cost-benefit analysis. The working like this is said environmental material valuation or measuring valuation. This work is studied about looking for proper analysis model to apply our environmental materials.

• 농촌계획
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• 제21권4호
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• pp.167-175
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• 2015

The aim of this study is to establish resident-participative primary design of integrated rural development project with master planner by setting principals of open competition and transparent decision-making about village-to-village or business-to-business unit enterprise in Onui area, Hong-seong Gun. For effective processing, software projects such as residents education and rural landscape planning are simultaneously conducted for enhancing project understanding and comprehensive development plan including related post project. Above all, competition teams for individual project were organized to establish the resident-participative primary design using survey tables of residents demand. In 6 months resident-participative processing of primary design, continuous education and visiting to advanced area are conducted in team unit. Strengthened ability of team unit can be used in management and maintenance after project development. To do this, residents with the same opinions gathered as one competition team and identified business plans such as village asset, business location, size, program, and method for land securing. Favorable decision-making process by residents who are audience in project presentation of competition team has conducted. After selecting competition teams, continuos consulting are operated for establishing operation and management for developed or remodeled facilities through repetitive education and visiting advanced area. In this process, unit project suggested by competition team are completed. Preliminary selection was conducted by experts who were entrusted by residents. After residents agreement of project main stream such as major facilities and location, final detailed cost of projects are work out. Suggested process in this study which choose the final project by residents would improve residents' voluntary participation in integrated rural development project through open competition in establishing primary design.

• 교육녹색환경연구
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• 제12권2호
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• pp.31-42
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• 2013

The purpose of this study was to analyze the school location decision factor with land use planning and urban design. And this research proposed the school location decision factor for urban amenity. This research proved the fact that the school land correlated with the park, the other school land etc. And this result will be used in decision-making-process of land use planning, public land development construction oriental, urban design and city policy.

• 한국통신학회논문지
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• 제35권11B호
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• pp.1738-1747
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• 2010

본 논문에서는 포병 대대급 지휘통제 수행을 위해 기존 포병사격지휘체계(BTCS : Battalion Tactical Command System)의 전술적 사격지휘 자동화 절차를 추가하기 위한 기능을 분석 및 설계하고, 핵심 알고리즘에 대해 구현과를 제시한다. 분석 과정에서는 미군 선진포병전술자료체계(AFATDS)의 전술 결심 지원 3단계 획득-결심-할당 절차를 참고하였다. 전술적 사격지휘 자동화 절차는 표적분석, 공격우선순위 및 사격부대 결정, 사격방법 및 공격방법 결정의 3단계로 구성된다. 첫 번째 단계로, 표적분석에서는 표적정보인 표적활동, 크기, 방호정도 정보를 활용하여 표적의 등급을 생성한다. 두 번째 단계로, 공격우선순위 및 사격부대 결정은 표적 등급과 지휘관의 화력운용지침을 고려하여 표적의 공격우선순위를 결정하고, 부대 가용도 및 작전 임무를 고려하여 사격부대를 결정한다. 마지막 단계로, 사격 및 공격방법 결정은 표적에 대한 요망 효과 달성을 위해 사격방법과 합동탄약효과교범(JMEM)을 활용하여 발수 등을 결정한다. 끝으로 전술적 사격지휘절차 단계간 우선순위결정, 공역통제 및 고사계 판단 핵심 알고리즘을 적용함으로서 기존 절차를 개선하여 사격임무를 처리할 수 있도록 하였다. (*기존절차 : 우선순위판단 : 시간만 고려, 사격가능부대 : 사격가능 사거리만 고려하여 판단함).

• 소성∙가공
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• 제16권3호
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• pp.163-171
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• 2007

Due to the complicated character of the hemming process for automobile panels, it is very difficult to setup a consistent and reliable die design guide rule that require subtle decision of experienced experts and multiple trials during hemming die design and making. In this paper an automatic die design system of hemming units is pursued by presenting some algorithms, in which geometric data and constraints of the hemming units were converted to formula. The geometries and kinematics of all part for two kinds of hemming units, 2-link type and 4-link type were analysed kinematically to build the design algorithm. The algorithms were verified by automatic drawing used AutoCAD VBA program in example for the hemming unit design of a bonnet.

• 전기학회논문지
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• 제56권7호
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• pp.1183-1190
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• 2007

This paper proposes the improved fault decision algorithm using DWT(Discrete Wavelet Transform) and ANNs for the FRTU(Feeder Remote Terminal Unit) on the feeder in the power distribution system. Generally, the FRTU has the fault decision scheme detecting the phase fault, the ground fault. Especially FRTU has the function for 2000ms. This function doesn't operate FI(Fault Indicator) for the Inrush current generated in switching time. But it has a defect making it impossible for the FI to be operated from the real fault current in inrush restraint time. In such a case, we can not find the fault zone from FI information. Accordingly, the improved fault recognition algorithm is needed to solve this problem. The DWT analysis gives the frequency and time-scale information. The neural network system as a fault recognition was trained to distinguish the inrush current from the fault status by a gradient descent method. In this paper, fault recognition algorithm is improved by using voltage monitoring system, DWT and neural network. All of the data were measured in actual 22.9kV power distribution system.

• 가정과삶의질연구
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• 제24권6호
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• pp.33-45
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• 2006

The purpose of this study was to find the characteristics of the housing needs of apartment purchasers in derision-making steps. The survey was took place from June to July, 2003 in the Daegu area. The data were collected from 1,187 married women using questionnaires and reponses were analyzed by SPSS Window Program. The results were as follows : 1. In the phase when housing problems are recognized the motives for moving were related to the floor space of the housing unit and the residential environment. 2. In the phase of acquiring information on apartments, the basis of the informations was mostly collected through conversations at model houses, from relatives, experts and real estate agents. 3. In the phase of considering alternative plans for apartment purchases, the factors considered were convenient interior space composition and educational environment for children. 4. In the phase of apartment purchase, the important factors was input from relatives and experts. 5. In the phase of post-purchase evaluation most discontent was related to privacy issues, interior space composition, and educational environment for children.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.864-867
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• 2007

U-City건설 사업, 행정중심복합도시 건설 등 최근 도심 개발 사업이 대형화되고, 복합화되고 정보 인프라의 증가로 인하여 건설 산업이 정보화, 첨단화되면서 프로젝트의 기획단계의 중요성이 나날이 증가하고 있다. 최근 건설 분야에서 3D CAD 및 GIS 기술과의 융합 등 IT를 접목한 컨버전스를 통해 실제 건축물을 구축하기 전 건설 사업 단계별로 미리 시뮬레이션을 통해 의사결정을 지원할 수 있는 애플리케이션이 활발히 개발되고 있다. 하지만 프로젝트의 초기단계인 기획단계의 경우에는 업무의 특성상 전문가의 경험에 의존하는 경향이 있고, 행정적인 업무를 수반하기 때문에 IT기술을 활용한 어플리케이션을 적용하는 데 있어서 한계를 가지고 있다. 따라서 기획단계의 의사결정 지원을 위해 최근 이슈화되고 있는 3D CAD 데이터에 기획 단계에서의 설계요소 정보, GIS 기술을 연계하여 프로젝트 초기 단계인 기획단계의 업무 효율을 향상시킬 수 있는 방향을 제시하고자 한다.

• 보건행정학회지
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• 제33권1호
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• pp.19-28
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• 2023

Background: With the enactment of the Hospice, Palliative, Care, and Life-sustaining Treatment Decision-Making Act in February 2018, legal guidelines for physician orders for life-sustaining treatment (POLST) were presented. This study was conducted to analyze the association of writing POLST on the use of health care before death. Methods: The study analyzed the electronic medical records and POLSTs of 1,003 adult patients who died at a tertiary hospital located in Seoul from February 4, 2018 to February 4, 2019. Results: Of the deaths, 80% (n=804) completed POLST. Among patients who completed POLST before death, 51% (n=412) were written 1-7 days before death, and only 31% (n=246) were completed by patients themselves. 99% (n=799) decided to withdraw or withhold cardiopulmonary resuscitation. As a result of analyzing the effect of POLST on medical use before death, it was found that POLST and inpatient cost had a significant negative correlation, and POLST completion significantly reduced death in the intensive care unit (ICU). However, both inpatient costs and death at ICU increased when the POLST was completed by surrogate decision-makers rather than patients themselves. Conclusion: The enactment of the Hospice, Palliative, Care, and Life-sustaining Treatment Decision-Making Act provided a legal basis for withdrawing and withholding meaningless life-sustaining treatment. By specifying the treatment to be received at the end of one's life through the POLST, inpatient treatment costs and death at the ICU were decreased. However, the frequent decision-making by the surrogates and completion of POLST close to death may hinder the original purpose of the law.

• 한국해양공학회지
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• 제35권4호
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• pp.287-295
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• 2021

This paper describes a recurrent neural network (RNN) for the fault classification of a blade pitch system of a spar-type floating wind turbine. An artificial neural network (ANN) can effectively recognize multiple faults of a system and build a training model with training data for decision-making. The ANN comprises an encoder and a decoder. The encoder uses a gated recurrent unit, which is a recurrent neural network, for dimensionality reduction of the input data. The decoder uses a multilayer perceptron (MLP) for diagnosis decision-making. To create data, we use a wind turbine simulator that enables fully coupled nonlinear time-domain numerical simulations of offshore wind turbines considering six fault types including biases and fixed outputs in pitch sensors and excessive friction, slit lock, incorrect voltage, and short circuits in actuators. The input data are time-series data collected by two sensors and two control inputs under the condition that of one fault of the six types occurs. A gated recurrent unit (GRU) that is one of the RNNs classifies the suggested faults of the blade pitch system. The performance of fault classification based on the gate recurrent unit is evaluated by a test procedure, and the results indicate that the proposed scheme works effectively. The proposed ANN shows a 1.4% improvement in its performance compared to an MLP-based approach.