• 한국컴퓨터정보학회논문지
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• 제22권7호
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• pp.31-37
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• 2017

There are lots of combined battlefield elements which complete the war. It looks problematic when collecting and analyzing these elements and then predicting the situation of war. Commander's experience and military power assessment have widely been used to come up with these problems, then simulated combat training program recently supplements the war-game models through recording real-time simulated combat data. Nevertheless, there are challenges to assess winning factors of combat. In this paper, we characterize the combat element (ce) by clustering simulated combat data, and then suggest multi-layered artificial neural network (ANN) model, which can comprehend non-linear, cross-connected effects among ces to assess mission completion degree (MCD). Through our ANN model, we have the chance of analyzing and predicting winning factors. Experimental results show that our ANN model can explain MCDs through networking ces which overperform multiple linear regression model. Moreover, sensitivity analysis of ces will be the basis of predicting combat situation.

• Nuclear Engineering and Technology
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• 제44권4호
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• pp.379-386
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• 2012

A symptom-based procedure with a critical safety function monitoring system has been established to reduce the operator's diagnosis and cognitive burden since the Three-Mile Island (TMI) accident. However, it has been reported that a symptom-based procedure also requires an operator's cognitive efforts to cope with off-normal events. This can be caused by mismatches between a static model, an emergency operating procedure (EOP), and a dynamic process, the nature of an ongoing situation. The purpose of this study is to share the evidence of mismatches that may result in an excessive cognitive burden in conducting EOPs. For this purpose, we analyzed simulated emergency operation records and observed some operator behaviors during the EOP operation: continuous steps, improper description, parameter check at a fixed time, decision by information previously obtained, execution complexity, operation by the operator's knowledge, notes and cautions, and a foldout page. Since observations in this study are comparable to the results of an existing study, it is expected that the operational behaviors observed in this study are generic features of operators who have to cope with a dynamic situation using a static procedure.

• 한국항공운항학회지
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• 제9권2호
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• pp.37-53
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• 2001

The Pilot Aptitude Research Equipment (PARE) at the Republic of Korea Air Force Academy had been installed to study the pilot aptitude of the cadets and the student pilots(Navy officers and Air Force officers from the pilot scholarship programs and the ROTC). The T-37 simulated flight program and procedure, and the automatic evaluated program for simulated flight have been orderly developed to use the PARE effectively. The cadets who entered started to get simulated flight training by using those developed programs. Their flight situation has been recorded by the automatic evaluated program whenever they got the training. And then the cadets who took part in the simulated flight started the elementary combat flight training in 1,999 after getting appointed to an office and finished the advanced combat flight training in 2,001. The study of the relationship between the simulated flight and the combat flight training has begun after finding their combat flight training results. The Logistic Discriminal Analysis, technique of the SAS statistical analysis package was used to study the pilot aptitude model through the simulated flight training. This study showed that it is possible to pre-estimate the result of the combat flight training using the PARE machine.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 추계종합학술대회 논문집
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• pp.841-844
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• 1999

The interference situation from NGSO/FSS network to GSO/FSS network is more complicated than the situation between GSO networks because of the time varying orbital characteristics of NGSO systems. In this paper, the interference characteristics for several types of hand-over strategies are simulated and it is shown that the results should be useful in practical coordination of inter-network interference.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2019년도 춘계학술대회
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• pp.395-397
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• 2019

조선기술과 항해장비 기술이 발전하고 있지만 여전히 해양사고는 80%이상이 인적과실에서 비롯되고 있다. 인적과실을 저감시켜 해양사고를 절감시키려는 노력은 항해사를 대상으로 면담이나 설문을 시행하는 등 정성적인 연구방식에 많이 의존하고 있어서 객관적인 인적과실의 실체를 규명하는데 제한이 있다. 본 연구에서는 이 같은 단점을 극복하기 위하여 항해사의 항해 업무 수행을 방해하지 않으며 공간적 제한을 극복할 수 있도록 웨어러블 센서를 활용하여 항해사의 동작을 실측하고 상황인지 여부가 항해 수행 동작에 어떤 영향을 미치는지 구분하고자 한다. Full mission ship handling simulator를 활용하여 항해사가 특정한 시나리오를 수행하는 중에 위험성을 가진 장애물을 발견하기 전과 후의 어떤 행동패턴 변화를 보이는지 측정하였다. 구분된 항해 동작 패턴은 항해 위험 상황에서 적절한 조치를 취하고 있는지 여부를 객관적으로 구분하여 인적과실을 절감하는데 활용될 것으로 기대된다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제15권1호
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• pp.1-11
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• 2015

A concept of Deep Level Situation Understanding is proposed to realize human-like natural communication (called casual communication) among multi-agent (e.g., humans and robots/machines), where the deep level situation understanding consists of surface level understanding (such as gesture/posture understanding, facial expression understanding, speech/voice understanding), emotion understanding, intention understanding, and atmosphere understanding by applying customized knowledge of each agent and by taking considerations of thoughtfulness. The proposal aims to reduce burden of humans in humans-robots interaction, so as to realize harmonious communication by excluding unnecessary troubles or misunderstandings among agents, and finally helps to create a peaceful, happy, and prosperous humans-robots society. A simulated experiment is carried out to validate the deep level situation understanding system on a scenario where meeting-room reservation is done between a human employee and a secretary-robot. The proposed deep level situation understanding system aims to be applied in service robot systems for smoothing the communication and avoiding misunderstanding among agents.

• 가정과삶의질연구
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• 제11권2호
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• pp.40-54
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• 1993

The purpose of this study was to examine the specific nature of early relationship between infant and father. The subject pool for the study consisted of 42 middle-class infant-father days. Infant's ages were 12 moths to 17 months. All were fullterm babies In order to assess the patterns of infant-father attachment each dyad was videotaped in the simulated Strange Situation of Ainsworth et al(1978). In order to assess the paternal sensiti-vity toward the infant's cue,. each dyad was also filmed for a 3-minute Questionnaire Situation Gratification of the Transition to Fatherhood. Also at home mothers completed a report on infant temperament using the Infant Characteristics Questionnaire. Among 42 infants 48% or 20 were classified as securely attached 38% or 16 as anxious-avoi-dant and 14% or 6 as anxious-resistant Using the discriminant function coefficients for combi-ning the paternal sensitivity scores 83% of the infants were correctly classified as A. B. C The patterns of attachment were not found to be significantly different in the paternal childhood experience for attachment relationship to his own parents. Degree of Difficulty and Gratification groups with respect to infant temperamental fussiness.

• 한국산학기술학회논문지
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• 제20권12호
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• pp.398-409
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• 2019

최근 의료기관평가 인증에서 환자안전사고에 대한 예방이 강화 되면서 환자안전은 환자를 중심으로 발생하는 의료사고를 관리하여 환자의 안전을 유지하는 것이다. 따라서 본 연구는 모의상황을 활용한 환자안전 교육프로그램을 개발하고, 입원환자에게 적용하여 교육 전, 후에 따른 환자안전에 대한 지식, 수행, 인식도에 미치는 효과를 파악하고자 시도되었다. 또한 프로그램 적용 후 환자안전 교육에 대한 만족도를 파악한다. 연구의 대상자는 서울 소재 D종합병원 병동에 입원한 환자 30명이다. 2019년 4월 15일부터 4월 30일까지 자료수집 하였으며 자료처리 및 분석방법은 SPSS 23.0을 이용하여 빈도, 백분율, paired t-test 로 분석 하였다. 연구 결과, 모의상황을 활용한 환자안전 교육 프로그램이 입원환자의 환자안전에 대한 지식, 수행, 인식도 향상에 모두가 유의하게 나타났다. 임상환경에서 실제상황과 유사한 모의상황을 경험해봄으로써 입원환자에게 환자 안전에 효과적인 교육 방법임이 확인되었다. 따라서 환자안전 교육 프로그램은 환자의 지식 및 수행, 인식도 향상에 긍정적인 영향을 주며, 임상에서 입원 환자의 환자안전 교육 시 교육 프로그램의 기초로 활용될 수 있을 것이라 기대된다.

• 한국멀티미디어학회논문지
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• 제10권4호
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• pp.483-491
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• 2007

논문은 컴퓨터 게임 구현을 위한 상황 시뮬레이션 구조를 제안하고, 이를 바탕으로 게임 전개에 대한 분석을 가능하게 한다. 기존의 게임에 대한 연구는 물리엔진의 성능향상, 온라인 게임에서의 네트워크 부하 문제에서 부터 물리현상을 자연스럽게 표현하는 문제 등에 대한 연구가 주를 이루고 있다. 본 논문에서는 일반적인 컴퓨터 게임구조에 대한 높은 수준의 상세화를 시뮬레이션 하기 위해서 상황 계층 구조를 제공한다. 논리적으로 전개되는 시뮬레이션 환경은 상황 계층 구조에 기반해서 사건과 상황을 정의한다. 사건은 사용자에 의한 명시적 사건과 시스템내의 반응에 의한 묵시적 사건으로 분류한다. 게임 발생에서 사건의 원천을 정의하고, 객체의 존재유무가 게임 진행의 주요한 요인임을 설명한다. 이러한 접근방법의 장점은 게임 시뮬레이션을 위한 개념적인 설계와 상황분석을 제공한다. 그리고 게임의 구현에 있어서 시뮬레이션 설계의 복잡성과 추상화 작업에 따른 복잡함을 감소시킨다. 특히, 사건정의를 통하여 게임 설계에 대한 분류적인 접근이 아닌 구조적인 접근이 가능하다. 제안하는 방법으로 여러 게임 중의 하나인 바둑돌 뜅기기 게임의 예를 적용하여 구현 가능함을 보인다.

• 천문학회지
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• 제37권5호
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• pp.509-515
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• 2004

We present results from an extensive synthetic observation analysis of numerically-simulated radio galaxy (RG) jets. This analysis is based on the first three-dimensional simulations to treat cosmic ray acceleration and transport self-consistently within a magnetohydrodynamical calculation. We use standard observational techniques to calculate both minimum-energy and inverse-Compton field values for our simulated objects. The latter technique provides meaningful information about the field. Minimum-energy calculations retrieve reasonable field estimates in regions physically close to the minimum-energy partitioning, though the technique is highly susceptible to deviations from the underlying assumptions. We also study the reliability of published rotation measure analysis techniques. We find that gradient alignment statistics accurately reflect the physical situation, and can uncover otherwise hidden information about the source. Furthermore, correlations between rotation measure (RM) and position angle (PA) can be significant even when the RM is completely dominated by an external cluster medium.