• 한국항행학회논문지
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• 제27권5호
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• pp.674-684
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• 2023

이 논문에서는 INS의 항법 정확도에 영향을 주는 중력 교란에 대한 실시간 예측기법으로 다층 퍼셉트론 모델을 제안하였다. 적합한 MLP 모델을 선정하기 위해서 학습 정확도 및 실행시간을 비교할 수 있게 신경망의 크기가 다른 4개의 모델을 설계하였다. 이 MLP 모델의 학습을 위해 해상 또는 육상의 지표면을 따라 이동하는 물체의 위치 및 중력교란 데이터를 사용하였으며, 중력교란 데이터의 계산은 2160차의 EGM2008을 SHM을 이용하여 이루어졌다. 학습 정확도 평가에서는 MLP4가 가장 우수한 것으로 확인 되었고, 이후 실행시간을 측정하기 위해 학습이 완료된 4개 모델의 가중치와 바이어스 항들을 INS의 내장형 컴퓨터에 저장하여 MLP 모델을 구현하였다. 4개 모델 중 MLP4의 실행시간이 가장 짧은 것을 확인할 수 있었다. 이러한 연구 결과는 향후 중력 교란 보상을 통한 INS의 항법 정확도를 향상시키는데 활용될 수 있을 것으로 기대된다.

• 한국산학기술학회논문지
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• 제19권6호
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• pp.334-344
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• 2018

본 연구는 메르스 대유행시 요양병원 종사자의 메르스에 대한 지식, 태도 및 감염예방행위 실천도와의 관계를 파악하기 위하여 시도되었다. 연구대상자는 J도 소재 요양병원 종사자 211명으로 구조화된 설문지를 이용하였으며, 자료수집기간은 2015년 6월 15일부터 7월 15일까지였다. 자료 분석은 SPSS/WIN 24.0을 이용하여 independent t-test, ANOVA, Welch test로 분석하였고, 사후 검정은 scheff test, Grames-hawell test 방법으로 시행하였다. 요양병원 종사자의 메르스에 대한 지식점수는 간호사와 간호조무사, 감염관리 교육경험이 있는 경우, 지난 해 인플루엔자 예방접종을 한 경우, 손소독제 사용이 용이한 경우에 높았으며, 메르스에 대한 태도는 간호사가 간호조무사와 간병인보다 긍정적이었다. 메르스 감염예방행위 실천도는 일상생활에서는 지난 해 인플루엔자 예방접종을 한 경우, 환자 간호 시에는 지난 해 인플루엔자 예방접종을 한 경우, 손소독제 사용이 용이한 경우에 높았다. 요양병원 종사자의 메르스에 관한 지식, 태도 및 감염예방행위 실천도와의 관계는 지식이 높고, 태도가 긍정적일수록 감염예방행위 실천도가 높게 나타났다. 이에 메르스와 같은 신종감염병이 유행할 때, 요양병원에서는 메르스 질병 특성 및 전파, 예방법이 포함된 감염관리 교육을 실시해 메르스에 대한 지식수준을 높이고, 태도를 긍정적으로 유도하여, 감염예방행위 실천도를 향상시킬 필요가 있을 것이다.

• 문화기술의 융합
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• 제5권2호
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• pp.123-138
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• 2019

본 연구는 임상실습내용에 따른 실습방법 및 수행정도를 파악하고자 치위생과 학생을 대상으로 진행하였으며 다음과 같은 결론을 얻었다. 감염관리에서는 '진료실 장비 감염 방지하기', '치과진료기구 소독 및 멸균하기'를 가장 많이'수행'하고 있었으며, 예방치과에서는 대부분 '교육하기' 항목에서 '관찰'을 많이 하는 것으로 나타났다. 보존과에서는 '협조하기' 항목에서 '수행'을 많이 하는 것으로 나타났으며, 보철과에서는 '관찰'을 더 많이 하는 것으로 나타났다. 임상실습 경험이 많은 학생일수록 기본진료, 구강악안면방사선과, 예방치과, 보존과, 치주과, 구강외과, 교정과, 구강내과에서 실제적으로 실습생들의 수행 빈도가 증가하는 것으로 나타나 통계적으로 유의한 차이를 보였다(p<0.05). 대부분의 임상실습내용에서 수행하기보다는 관찰하기가 높게 나타나, 실습내용에 대한 학년별 또는 임상실습 경험 횟수별로 명확한 임상실습 내용의 목표설정이 필요할 것으로 사료된다.

• 한국유기농업학회지
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• 제11권3호
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• pp.1-19
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• 2003

The operation of a five day workweek seems to be increased continuously, Many city-workers will make good use of their spare time and search after a lot of devices that can seek for the maximum value of leisure utility. The demand of potential customers that want to enjoy weekend in farming villages is coming out greatly. That is, the condition of users that will travel the farming villages is getting better. But the actual states of farming villages are not ready in many parts yet. Therefore we must activate the tourist attraction in farming villages that can be satisfied the city-workers' expectation. And after making the sightseeing environment infrastructure, we must develop the programs intimate with environment, improve the sightseeing agricultural management and consolidate various systems as soon as possible. So in this study, after investigating the demand preference degree of city-workers, I tried to grope an activation plan with the base which will reach. Being more urgent what more, not the simple sightseeing agriculture that the farming experience was the focus of, but it is very important to develop the program of environment sightseeing agriculture. It will lay the stress on playing and education culture which city-workers can enjoy and experience. And with constructing the base facility like a city form, we must develop cheap and various goods and the execution of modernized weekend farms. For this, first the consciousness conversion against the customer management of farmers must precede and the change of government policy and the support polity is important. I hope that this study with the five-day workweek has the chance to contribute in the economic growth of farming villages and efficient use and management of the natural environment resources through the activation of sightseeing agriculture.

• 한국정보과학회논문지:시스템및이론
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• 제30권5_6호
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• pp.258-264
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• 2003

VLIW 구조는 다량의 데이터를 처리하는 멀티미디어 애플리케이션에 매우 적합한 구조로서, 이 같은 종류의 애플리케이션에 대해 높은 수준의 병렬 처리를 가능케 한다. 이러한 병렬성을 더욱 증대 시키기 위하여 시스템을 확장하는 경우에 있어, 분산된 VLIW 구조는 그렇지 않은 구조에 비해 큰 강점을 갖는다. 하지만 여러 개의 분산된 클러스터를 하나의 구조 속에 포함하는 것은 필연적으로 적지 않은 양의 하드웨어를 요구하고, 이로 말미암아 전체 시스템에서 소모되는 전력 문제가 중요한 이슈로 대두된다. 본 논문에서는 분산된 VLIW 구조에서 전체 시스템의 성능 제한 조건을 만족시키는 동시에 최대 전력 소모량을 줄이는 효과적인 알고리즘을 제시한다. 일련의 실험을 통해 제시된 알고리즘이 최대 30.7%의 최대 전력 소모 감소 효과를 얻을 수 있음이 확인되었다.

• 한국환경과학회지
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• 제13권10호
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• pp.855-861
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• 2004

This study analysed the influencing factors involved in deciding the policy through the analysis of procedure in the policy on the natural resources in local governments. To evaluate the political consensus of decision making in policy determination as political rationality in natural resources policy, we analyzed the degree of the satisfaction from the residents. Among the analysis factors of the satisfaction of natural resources policy, the most significant independent factors were the goal and the method of the policy, the institutional conditions and interested groups, the appropriateness of the content of decision making, supervising and controlling, cooperating relations, the effect of policy, and the consistency. From the analysis of the effect and the goal of policy, we found $70.5\%$ of residents was against the policy and only $27.8\%$ consented. Considering the appropriateness of supervising and controlling in accordance with the process of the policy decision and its execution, the influence of local governments and institutions concerned enjoying comparatively more economic benefits was strong, however, the involvement of the residents and supervising and monitoring institutions were found negligible.

• 한국응급구조학회지
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• 제14권1호
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• pp.19-29
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• 2010

Purpose : This study was conducted to examine the degree of recognition of safety education and its execution for child-care teachers at daycare center for the disabled children in Jeollanam-do. Ninety six child care teachers filled out the questionnaire and the results were as follows. Results : 1. The possibility of accident prevention by the day care teachers was a little higher in case of nearby education institution. The most appropriate period of safety education was within one month. 2. Majority of child care teachers had received safety and first-aid educations before and the education was done for less than 2 hours. 3. The best educational method was practice-centered education of off-duty time. The contents of first-aid education were bleeding, fall, shock, and burn. 4. The education material and book should be available to the teachers when they need the knowledge. 5. By the annual schedule, safety education should be conducted and provided to the parents. Conclusion : This study suggested that reinforcement of contents related to emergency situation and actual first-aid as well as theory education in the process of parent and teacher education should be conducted on the basis of information of general conditions related to safety and first-aid education at the daycare center for the disabled children.

• 한국건축시공학회지
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• 제9권1호
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• pp.57-64
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• 2009

CWS I method developed to overcome the problems of frequent occurrence in the application of existing downward construction methods has demonstrated excellent efficiency. However, in the case of using slurry wall instead of SCW or CIP as a retaining wall, the improvements in connecting steel beams with the wall were demanded. Therefore, the study of CWS II method was carried out in order to accomplish the CWS I method reflecting its strong points and to ensure the settlement of a steel beam and to induce the diaphragm effect of a slab while reducing the degree of difficulty and the term of works and the cost of construction. In this paper, the concept and features of CWS II method as well as the progress of execution was discussed by comparing with existing methods.

• Restorative Dentistry and Endodontics
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• 제38권2호
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• pp.59-64
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• 2013

Apical surgery cuts off the apical root and the crown-to-root ratio becomes unfavorable. Crown-to-root ratio has been applied to periodontally compromised teeth. Apical root resection is a different matter from periodontal bone loss. The purpose of this paper is to review the validity of crown-to-root ratio in the apically resected teeth. Most roots have conical shape and the root surface area of coronal part is wider than apical part of the same length. Therefore loss of alveolar bone support from apical resection is much less than its linear length.The maximum stress from mastication concentrates on the cervical area and the minimum stress was found on the apical 1/3 area. Therefore apical root resection is not so harmful as periodontal bone loss. Osteotomy for apical resection reduces longitudinal width of the buccal bone and increases the risk of endo-perio communication which leads to failure. Endodontic microsurgery is able to realize 0 degree or shallow bevel and precise length of root resection, and minimize the longitudinal width of osteotomy. The crown-to-root ratio is not valid in evaluating the prosthodontic prognosis of the apically resected teeth. Accurate execution of endodontic microsurgery to preserve the buccal bone is essential to avoid endo-perio communication.

• 한국주거학회논문집
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• 제13권6호
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• pp.1-10
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• 2002

As the elderly population increases, concerns for the elderly's welfare become greater both quantitatively and qualitatively. In order to give a chance for the elderly to live in familiar dwelling and regional context to which they are accustomed, and to participate in their society actively, it is of great importance that suitable living spaces must be provided for the elderly. The practical ways of providing people with good living environment and its easy maintenance for healthy and valuable lives were discussed in this paper. This research is designed to propose pertinent policies related to social issues concerning the elderly. 137 seniors over 60 living in Gwanaju city were sampled and surveyed. The scope of planning for the elderly's lifestyle and welfare is divided into two parts, one is planning of space for the realization of stable and spacious dwellings and another is urban environment planning capable of supporting healthy and affluent lifestyles. Also, the realization of stable housing, the construction of urban structure for a healthy life, and the provision of barrier-free living conditions are investigated. For increasing the degree of stabilization and improvement for the elderly's life, self-governing bodies should grasp the demands of living condition and spatial requirements by taking the lifestyles of the elderly into account in urban or regional levels. Then, a master plan including development, improvement, execution, and maintenance of proper housing facilities and urban environments should be made for the best results.