• 여성건강간호학회지
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• 제3권1호
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• pp.28-38
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• 1997

Recently, the birth rate of congenitally anomalic babies is increasing in Korea. But there are few studies and articles in nursing field. So nurses are having difficulties in caring those mothers. This study is to reveal experiences of the mothers with congenitally anomalic babies. Subjects were six and data were gathered by interviews. Data were analyzed by Giorgi's method. Mother's responses were organized into five categories-shock, sadness, expectation, attribution and loss of confidence on future pregnancies. Loss of confidence on future pregnancies were categories which were not found in foreign articles. Based on the result of this study, author recommend that another studies which deal only same anomaly will be done, and genetic counseling system will be organized in hospitals.

• KIEE International Transactions on Power Engineering
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• 제5A권4호
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• pp.385-389
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• 2005

Power transformers would appear to be simple. However, due to their nonlinear and frequency-dependent behaviors, they can be one of the most complex system components to model. It is imperative that the applied models be appropriate for the range of frequencies and excitation levels that the system experiences. Transformer modeling is not a mature field and newer improved models must be made available in ATP packages. Further, there is a lack of published guidance on recommended modeling approaches. And there is typically not enough detailed design or test information available to determine the parameters for a given model. The purpose of this paper is to develop improved transformer core models for ATP and parameter estimation methods that can efficiently utilize the limited available information such as factory test reports.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 A
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• pp.697-699
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• 2005

High temperature superconducting (HTS) cable could be regarded as one of the most promising technologies for large electric power delivery with high reliability and low losses of power transmission system. Therefore, since 2001, LS Cable Ltd. has been developing 22.9kV, 50MVA HTS cable system as a member of DAPAS (Dream for Advanced rower system by Applied Superconductivity technology) program. In 2003, 22.9kV HTS cable system, single-core cable employing BSCCO HTS wires was firstly manufactured in 2003, and then three-core cable was also successfully developed through the demonstration of its field applicability. In this paper, based on these experiences, the relevant design technology and transient characteristics of HTS cable is described.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.47-50
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• 2006

Tsunami disaster caused great damages and very large victims especially when occurs in urban area along coastal region. Therefore information of evacuation in a map is very important for disaster preparedness in order to minimize the number of victims in affected area. Here, information generated from remote sensing satellite data (SPOT 5 and DEM) and secondary data (administration boundary and field survey data) are used to simulate evacuation route and to produce a map for Padang City. Vulnerability and evacuation areas are determined based on DEM. Landuse/landcover, accessibility areas, infrastructure and landmark are extracted from SPOT 5 data. All the data obtained from remote sensing and secondary data are integrated using geospatial modelling to determine evacuation routes. Finally the simulation of evacuation route in Padang City for tsunami preparedness is provided based on the parameters derived from remote sensing data such as distances from shelters, save zones, city's landmarks and the local community experiences how they can survive with the disaster.

• 농촌지도와개발
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• 제27권2호
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• pp.89-110
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• 2020

This study aims to explore field cases of social farming programs for the youth's rural in-migration and to suggest the political and practical directions of the initiative of social farming in Korea. Two cases of social farm were selected and one operators and two participants of each farm were interviewed. The results are as follows. First, the participants had a firm priority that social farming is based on farming activities and places, and recognized it as the practice of embracing socially vulnerable groups. Second, the hosts were running their social farms based on their own understanding of social farming, which turns out to show different characteristics of the program. Third, the participants joined the program with the motivation of having an experience of rural life, exploration of career paths, and a need a need of community settlement, restructuring their experiences. Based on these results, the direction of social farming for youth's rural in-migration was suggested.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 춘계 학술발표회 논문집
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• pp.966-973
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• 2005

The stress concentration ratio in accordance with area replacement ratios were considered as core elements of design. However, the stress concentration ratio will be vary depends on progress of consolidation in clay ground. And, since it is not sure to know the affecting factors accurately, the value is decided based on field experiences. To use SCP method more effective and correspond to soil improvement, the decision on proper area replacement ratio through the exact stress concentration ratio is very important. Accordingly, a numerical analysis on influence of various factors that needed to make rational designing guide for decision of proper area replacement ratio to stress concentration ratio was executed in this study.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 춘계학술대회 논문집 전력기술부문
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• pp.309-312
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• 2001

The Cheju-Haenam HVDC System is currently being operated in KEPCO's system. But it is quite difficult to control properly due to the newly-introduced system in KEPCO. Therefore, the operators and/or engineers who have little field experiences want to know the system responses for their control actions. To satisfy the needs, the detailed control models which are represented near to real systems are being developed in KEPS project performed by KEPRI. This paper presents the plan for developing the detailed control models and the digital controller based on RTDS of the Cheju-Haenam HVDC system in KEPS project. The EMTDC models of the Cheju-Haenam HVDC system which are the pre-stage models for developing RTDS-based models and digital controllers are also introduced.

• 한국게임학회 논문지
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• 제15권5호
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• pp.79-87
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• 2015

텍스트와 그림으로 표현되었던 교육 도구는 교육과 놀이 체험이라는 에듀테인먼트로 발전하였다. 에듀테인먼트 분야에서의 증강현실 기술은 체험을 극대화하여 놀이형 교육이 가능해 졌다. 또한 최근 증강현실을 응용한 다양한 애플리케이션으로 서비스 되고 있다. 본 논문에서는 에듀테인먼트 콘텐츠 설계와 구현을 통해 체험형 교육을 위한 활용방안에 대해 기술한다. 구현은 '뷰포리아 엔진'과 '유니티 3D'를 사용하였다.

• Nuclear Medicine and Molecular Imaging
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• 제42권sup1호
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• pp.116-120
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• 2008

Prostate cancer is the second leading cause of cancer death of men in western countries and the death related to this disease in Korea is also getting increased. Although anatomic imaging tools such as transrectal US or MRI have been playing a great role in detection of primary prostate lesion, the evaluation of regional lymph node or distant organ metastasis using these modalities is not successful. $^{18}F-FDG-PET$ scan is emerging diagnostic tool for various malignancies. Considering the usual characteristics of prostate cancer such as slow growing and osteoblastic metastasis, the application of FDG PET scan to this disease might be limited. However, in advanced prostate cancer refractory to chemotherapy, FDG PET scan show strong FDG uptake and SUV changes in serial PET scan can be a good indicator of treatment response. Although FDG PET can be useful only in limited cases of prostate cancer, its indication can be widened in future owing to rapid technical improvement and accumulated experiences in this field.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.118-121
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• 2004

The cutoff frequency of a LC output filter for Dynamic Voltage Restorers (DVR) limits the control bandwidth of a DVR system and the attenuation factor against the inverter switching ripples. For a selected cutoff frequency of a LC output filter, infinite number of L-C combinations is possible. Although different L-C combination has different filter characteristics, the filter design on L-C combination has been depended on field experiences without clear analysis. This paper proposes a design criterion and design examples for the L-C filter combination considering the control characteristics and the size of DVRs. An experimental DVR system based on the proposed LC output filter design methodology is built and tested.