• 한국멀티미디어학회논문지
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• 제22권8호
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• pp.930-939
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• 2019

High-Level Architecture(HLA)/Run-Time Infrastructure(RTI) are standards for distributed simulation systems and offer a technology to interconnect them and form one single simulation system. In defense domain, M&S is the only way to prove effectiveness of weapon systems except for Live Fire Testing (LFT). This paper focuses on guided missile simulations in weapon systems for engagement analyses and proposes the integrated flying vehicle model that is based on HLA/RTI. There are a lot of missiles in real world; therefore, we should develop each missile models in M&S in order to apply battlefield scenarios. To deal with the difficulties, in this paper, firstly, I classify these missiles into three models: ballastic, cruise, and surface-to-air missile models, and then I design each missile model and integrates them into a single model. This paper also offers a case study with my integrated flying vehicle model. At the conclusion, this paper presents contributions of this paper.

• Journal of Radiation Protection and Research
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• 제46권3호
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• pp.134-142
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• 2021

Background: From 2018 to 2020, the Expert Study on Public Understanding after the Fukushima Daiichi Nuclear Power Plant Accident (the Expert Study Group) identified and analyzed activities designed to promote public understanding of science and radiation since the Fukushima accident, and held discussions on how to achieve public understanding in the situation where public confidence has been lost, and how experts should prepare for dealing with the public. This panel session was held at the 53^rd meeting of the Japan Health Physics Society on June 30, 2020. Materials and Methods: First, three subgroup (SG) leaders reported their research methods and results. Then, two designated speakers, who participated as observers of the Expert Study Group, commented on the activities. Next, the five speakers held a panel discussion. Finally, the rapporteur summarized. Results and Discussion: SG leaders presented reports from researchers and practitioners in health physics and environmental risks who provided information after the Fukushima accident. During the discussion, experts in sociology and ethics discussed the issues, focusing on the overall goals of the three groups, local (personal) and mass communication, and ethical values. Many of the activities instituted by the experts after the accident were aimed at public understanding of science (that is, to provide knowledge to residents), but by taking into account interactions with residents and their ethical norms, the experts shifted to supporting the residents' decision-making through public engagement. The need to consider both content and channels is well known in the field of health communication, and overlaps with the above discussion. Conclusion: How to implement and promote the public engagement in society was discussed in both the floor and designated discussions. Cooperation between local communities and organizations that have already gained trust is also necessary in order to develop relationships with local residents in normal times, to establish an information transmission system, and to make it work effectively.

• Asia pacific journal of information systems
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• 제32권2호
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• pp.327-353
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• 2022

With the development of technology and media and the pursuit of non-face-to-face due to the corona pandemic, the influence of live commerce, a real-time streaming shopping channel, is growing. Starting from China, the popularity of live commerce is growing all over the world, and it has become an interesting topic among many practitioners and researchers. However, compared to its popularity, there are few studies on live commerce. Therefore, we build a theoretical model in terms of IT affordance such as visibility, guidance shopping, trading, and meta-voicing and investigate how live commerce affects engagement with customers. We empirically measure 428 individuals who have used live commerce using survey data. In addition, we conduct four types of scenario experiments on whether social cues on exposures of other consumers, influence customer engagement. Our results show that trading affordance has the most significant effect. This shows that the live commerce platform may want to devise a program that helps make payment easier for users who prefer a quick and simple process. Our study contributes to the literature by presenting the importance of IT affordance for live commerce.

• 문화기술의 융합
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• 제10권2호
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• pp.565-574
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• 2024

챗GPT는 우리 사회의 모든 분야에 커다란 반향을 일으키고 있으며, 이는 교육 분야에서도 마찬가지이다. 하지만 학교 현장에서의 챗GPT에 관한 학계 및 사회적 논의는 주로 표절과 같은 부정행위에 초점이 맞춰져있으며, 학생들의 인공지능 기술 활용으로 인한 긍정적인 효과에 대해서는 상대적으로 연구가 부족한 실정이다. 그와 더불어, 코로나 시대의 교육 위기 속에서 학업열의를 증진시키는 연구의 필요성이 제기되고 있다. 이러한 문제인식에 따라 우리는 학생들의 챗GPT 리터러시 수준에 따라 학업열의가 어떻게 나타나는지에 대해 알아보고, 그 과정에서 학생들의 학업 자신감 및 지각된 학업역량이 매개효과를 나타내는지를 확인했다. 이를 위해 406명의 대학생을 대상으로 수집한 데이터를 SPSS로 분석했다. 그 결과, 챗GPT 리터러시는 학업열의에 긍정적인 영향을 미치는 것이 확인되었으며, 학업자신감은 챗GPT 리터러시와 학업열의 사이를 매개했다. 또한 학업자신감과 지각된 학업역량은 이중으로 매개되었을 때 유의한 결과를 도출했다. 이러한 결과를 바탕으로 우리는 챗GPT 리터러시와 학업열의 사이의 이론적 매커니즘을 명확히 규명할 수 있다는 이론적 함의를 논하였다. 또한 이와 관련하여 챗GPT 리터러시 교육의 중요성에 관한 실용적 함의에 대해도 기술하였다.

• 문화기술의 융합
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• 제9권2호
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• pp.251-259
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• 2023

본 연구는 성인대학생의 사회적지지, 대학교육서비스품질, 학습몰입의 관계에서 학습동기의 매개효과를 검증하여 성인대학생의 학습효과 향상과 학습촉진 강화를 위한 학습체계 구축에 기초자료를 제공하고자 하였다. 이를 위하여 대구광역시와 경상북도에 위치한 2~3년제와 4년제 대학교에 재학 중인 성인대학생 573명을 대상으로 설문조사를 실시하였다. 분석한 연구결과는 다음과 같다. 첫째, 사회적지지와 학습몰입의 관계에서 학습동기는 부분 매개효과가 있는 것으로 나타났다. 둘째, 대학교육서비스품질과 학습몰입의 관계에서 학습동기는 완전 매개효과가 있는 것으로 나타났다. 이상의 연구결과는 성인대학생의 학습몰입을 높이기 위해서는 다양한 지지체계 구축과 교육서비스 향상을 위한 지속적인 개발과 노력이 필요하다는 것을 시사한다.

• 한국항공우주학회지
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• 제43권5호
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• pp.440-448
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• 2015

운동에너지 막대 탄두 시스템은 기존 시스템의 장점을 결합한 새로운 형태의 요격탄두 시스템으로서 직격 파괴방식에 비해 표적 유도 정밀도에 대한 의존도가 낮을뿐더러, 고폭 파편 탄두 방식보다 더 높은 관통력을 제공해 준다는 장점이 있다. 본 논문에서는 다양한 운동에너지 탄두의 사출 방식 중 등방성운동에너지 탄두의 기폭, 전개모델을 소개하고, TATE 관통방정식을 이용하여 사출된 관통자의 관통 효과를 계산하였다. 또한 교전 성능 분석을 위한 방법을 제시하였으며, 다양한 교전 상황에 대한 몬테-칼로 시뮬레이션을 통해 최적의 교전 기하 및 기폭 시점을 도출하였다.

• 대한간호학회지
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• 제50권2호
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• pp.298-312
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• 2020

Purpose: This study had two objectives: 1) to develop a scale for the process of exercise engagement (SPEE) for prediabetic individuals (PDIs); 2) to validate a structural model for the process of exercise engagement for PDIs. Methods: A cross-sectional survey with simple random sampling was conducted from September 2013 to December 2015 (in Taiwan). A total of 310 PDIs were enrolled for scale development and model validation via item analysis, factor analyses, and structural equation modeling. The Kuo model was used as the basis for developing the Chinese version of the SPEE for PDIs. Results: The SPEE contains five subscales with a total of twenty-one items that account for 54.9% to 65.9% of the total variance explained for assessing participants' process of engagement during exercise. For Kuo model validation, the model measures indicated goodness of fit between the Kuo model and sample data. Analysis further revealed a direct effect between the creating health blueprints (CHB) stage and the spontaneous regular exercise (SRE) stage (β=.60). Conclusion: The SPEE includes five subscales for assessing the psychological transition and behavioral expression at each stage of the process of exercise engagement for PDIs. The SPEE for people with prediabetes provides deeper insights into the factors of behavioral change stages that are required to initiate long-term health care outcomes and avoid developing diabetes. These insights are significant as they allow for patient-specific mapping and behavior modification to effect exercise.

• 문화기술의 융합
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• 제9권4호
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• pp.245-252
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• 2023

본 연구는 간호대학생을 대상으로 학습열의, 학업적 자기효능감이 문제해결능력에 미치는 영향을 확인하기 위해 시도되었다. 본 연구는 B시의 간호대학생 219명을 대상으로 하였다. 자료분석은 SPSS 22.0 프로그램을 이용하여 기술통계, t-test, ANOVA, 피어슨 상관계수, 다중회귀분석으로 분석하였다. 대상자의 문제해결능력 평균 4.00±0.51점이었고, 일반적 특성에 따른 문제해결능력의 차이는 전공만족도(F=9.476, p<.001), 수업만족도(F=3.079, p=.048)에서 유의한 차이를 나타냈다. 대상자의 문제해결능력은 학습열의(r=.560, p<.001), 학업적 자기효능감(r=.634, p<.001)과 정적상관관계를 나타냈다. 대상자의 학습열의는 학업적 자기효능감(r=.769, p<.001)과 정적상관관계를 나타냈다. 대상자의 문제해결능력에 영향을 미치는 요인은 학업열의(β=.177, p=.031), 학업적 자기효능감(β=.498, p<.001)으로 확인되었고, 설명력은 41.0%로 나타났다. 따라서 간호대학생의 문제해결능력을 향상시키기 위해 학습열의와 학업적 자기효능감을 향상시킬 수 있는 프로그램 개발이 필요하다.

• 한국군사과학기술학회지
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• 제14권4호
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• pp.639-647
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• 2011

In this paper, we have designed the Anti-Aircraft Artillery(AAA) model for the surface-to-air virtual engagement. The AAA model for the virtual combat simulation needs to detect the present target and estimate the target flight trajectory to find the aiming point. To find collision point of projectile fired from the artillery with the moving air target, we have presented the estimating technique for artillery aiming point. And we have analyzed the target probability of kill using Calton Hit function. Anti-air threat envelops are presented when the target velocity, position and the arrangement of four AAA are varying. Then we have compared the analyzed result using developed model with AEM model of MSA program.

• 한국해양공학회지
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• 제35권3호
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• pp.238-246
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• 2021

The survivability of a naval ship is the ability of the ship and its onboard systems to remain functional and continue a designated mission in man-made hostile environments. A passive decoy system is primarily used as a weapon system for improving the survivability of a naval ship. In this study, an engagement scenario-based simulation program was developed for decoy effectiveness assessments against an anti-ship missile (ASM), which tracks a target with sea-skimming and active radar homing. The program can explain the characteristics of a target ship, such as the radar cross section and evasive maneuvers, as well as the operational performance of the onboard decoy system, the guidance method of the ASM, and the engagement environment's wind speed and direction. This paper describes the theory and formulations, configuration, and user interface of the developed program. Numerical examples of a decoy effect assessment of a virtual naval ship against an ASM are presented.