• Title/Summary/Keyword: Engagements

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Improvement of Active Homing Performance with Radome Slope Estimation in Spatial Engagements

  • Jin, Shin-Sang;Lyul, Song-Taek
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.64.3-64
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    • 2001
  • In this paper, an estimation scheme with the IMM algorithm to estimate radome slope and target states is used to reduce the radome induced miss distance effectively in spatial active homing engagements of an anti-air missile. The filter algorithm in conjunction with proportional navigation guidance is tested by a series of simulation runs.

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Features of Student Engagement in Chinese Middle School Mathematics Classrooms

  • Ye, Lijun;Si, Haixia
    • Research in Mathematical Education
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    • v.14 no.4
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    • pp.333-345
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    • 2010
  • This study focuses on student engagement in Chinese middle school mathematics classrooms. By the recording and quantitative analysis on video case, this study explored the main acts and time of student engagement. The data showed that among the student engagements: (1) Students' responses to teacher's question occurred most frequently; (2) Collective responses were much more than the individual responses; (3) Students' responses and classroom practice spent the longest time; (4) The most frequent student engagements occurred in the aspects of classroom practice; and (5) Students rarely asked a question to teachers. The study also suggested that teacher's effective guidance could improve the level of student engagement and the content of classroom practice is very important to the quality of student engagement.

A Study on legal status of shipmaster and precedent of his Authority (상법상 선장의 지위와 선박소유자의 대리권의 판례에 관한 연구)

  • 황석갑
    • Journal of the Korean Institute of Navigation
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    • v.17 no.3
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    • pp.1-14
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    • 1993
  • The master of ship is always authorised to perform whatever acts are ordinarily necessary for the safe and proper prosecution of the voayge with regard to both ship and cargo. In other words, when a ship is away from her home port, where her business was managed, the master generally carried the owner's authority, and ordinarily he had power to enter into engagements, on their behalf, for carrying goods in the ship, or for letting her service, provided those engagements were consistent with the usual manner of employing her adopted by the owners. Accordingly he has always to decide onboard for an adequate applying of statutory law and cases whenever he acts. But the master would appear to have no such autho-rity where he can communicate with the owners without difficulty as, now-a-days, he nearly always can. This paper, therefore, intend to review some guidance of his authority in accordance with the Korean Code of Commerce as well as precedent based on it. The paper is also simply to place at the disposal of young shipmasters and those who aspire to command some legal information concerning limit of master's authority away from vessel's home port through legal commentation on the precedent, which may assist them to a better understanding of the many problems they may be faced with in the course of their ca-reers. In order to make an efficient study of legal structure concerned for shipmaster's authority, several up-to-date precedents are selected and described herein by writer's opinion for preventing unreasonable legal dispute in this field before courts in future.

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Community Services of University: A Case Study of Chonnam National University (대학의 지역사회 봉사: 전남대학을 사례로)

  • Ahn, Young-Jin
    • Journal of the Economic Geographical Society of Korea
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    • v.10 no.1
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    • pp.64-80
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    • 2007
  • This article shows how the university can contribute to regional development through its public services. To that end, this article firstly tried to examine the functions and activities of the universities in civic engagement. Secondly the actual contents and various programs of the Chonnam National University located in Kwangju, South Korea are analyzed as a case study. It is seen that Chonnam National University is emphasizing the civic engagements in terms of continuing educations, openings of the facilities, and volunteers services or social works of the students. But the more active connections between university and its community are still needed for the enhanced responsibility of the faculty about public services and for the enduring civic engagements.

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Influence of University Service Quality Factors on University Engagements -Focusing on Chinese students studying abroad- (대학 서비스 품질 요소들의 대학 인게이지먼트에 관한 영향 -중국 유학생을 중심으로-)

  • Kim, Moontae
    • Journal of Service Research and Studies
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    • v.14 no.1
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    • pp.108-123
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    • 2024
  • In particular, as the current educational institutions are becoming more competitive, universities need to make efforts to survive the fierce competition by improving their service qualities. In this situation, this study was conducted to confirm the effect of international students' evaluation of university service quality on university loyalty through university satisfaction and service engagements, And several implications can be suggested as follows. First, the dimensions of university service quality were identified as important factors that had a great influence on the university satisfaction of international students. Among the service quality dimensions, support services related to international students were found to be the most important variable in university satisfaction. The school's efforts to solve the inconvenience of international students and the grievances of students who feel difficulties that their own students do not feel are considered a very important factor in the satisfaction of international students. Second, it was found that international students' class engagement or friendship engagement can be increased through satisfaction with the school, and eventually, the increased engagements affect university loyalty. In particular, it has been verified that for international students, the loyalty of the school can be increased by establishing friendships with students from various countries and participating in various school programs. Finally, according to the purposes of studying abroad, the difference was confirmed between the groups studying for academic development and better employment and the group employed for overseas experience and immigration.

A Study on Environmental Design Method based on Open Narrative Structure - A Case of Designing of Arirang Culture Park - (열린 내러티브 구조를 이용한 환경설계 방법 연구 - 용산 아리랑 문화공원을 설계사례로 -)

  • 이상경;조경진
    • Journal of the Korean Institute of Landscape Architecture
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    • v.31 no.2
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    • pp.12-27
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    • 2003
  • The purpose of this study is to look for an environmental design method based on open narrative structure, and to promote various experiences and interpretations of space through user's engagements. That is to say, the designer does not lead specific events through separate Boning but using the continuous open composition users are provided with margins for their imaginations. Spatial formulation through open narrative structure gives us various thoughts and it plays an important role in making a sequential space. Like an abstract painting, it is a complex story making or arranging a montage of images containing stories that elicit the reader's engagement through diverse interpretations. Like this, open composition exists in an ambiguous state and it is possible to interpret unfinished‘evolving work’within it. Utilizing open narrative structure, this study attempts to apply the idea of sequencing and open composition in the case of designing Arirang Culture Park. Open composition should induce various engagements by users and could be a medium which organically connects nature, culture and people. The spatial strategies of‘ambiguity’ and‘transparency’are like a bundle of complex and heterogeneous factors. Finally, the study focuses on the ‘integration’of the main ideas that compose multilayered space. ‘Voidness’and‘thickening’are also used for spatial strategies in open narrative structure. As alternative plans for undecided programs of the space, the voidness can be a strategic design program with flexibility about changes of futures. Also, thickening can be a strategic design program for functional reinforcement of the space, for the dramatic effects and for the generation of incidental events. Although both voidness and thickening seem paradoxical, we can see they are similar in the way that both focus on various spatial uses and by how they do not function as one-to-one correspondence, but as multiple correspondences. Therefore, open narrative structure is possible to apply in designing space and it can be an alternative design strategy for inducing multiple interpretations of space.

Investigating Korean Students' Different Profiles of Affective Constructs and Engagements: A Latent Profile Analysis on TIMSS 2015 (학생들의 태도 특성 분석을 통한 학생 집단 구분에 대한 연구: TIMSS 2015 결과를 중심으로)

  • Hwang, Jihyun;Ko, Eun-Sung
    • Journal of the Korean School Mathematics Society
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    • v.21 no.3
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    • pp.207-225
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    • 2018
  • Large-scale international comparison studies for a decade have shown Korean students' negative affective constructs and engagement. In addition to this general finding, this research aimed to provide details in Korean students' affective constructs and engagement. With the latent profile analysis, we found five groups of individuals showing qualitatively different characteristics in their affective constructs and engagement. Particularly, it is required to pay more attentions to two groups with relatively negative views on engaging teaching in mathematics lessons. The findings in this research suggested that different approaches could be required to improve affective constructs and engagement in each group. This necessitated further research on achievement and influential factors on each group's characteristics of affective constructs and engagement.

Cooperative Multi-agent Reinforcement Learning on Sparse Reward Battlefield Environment using QMIX and RND in Ray RLlib

  • Minkyoung Kim
    • Journal of the Korea Society of Computer and Information
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    • v.29 no.1
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    • pp.11-19
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    • 2024
  • Multi-agent systems can be utilized in various real-world cooperative environments such as battlefield engagements and unmanned transport vehicles. In the context of battlefield engagements, where dense reward design faces challenges due to limited domain knowledge, it is crucial to consider situations that are learned through explicit sparse rewards. This paper explores the collaborative potential among allied agents in a battlefield scenario. Utilizing the Multi-Robot Warehouse Environment(RWARE) as a sparse reward environment, we define analogous problems and establish evaluation criteria. Constructing a learning environment with the QMIX algorithm from the reinforcement learning library Ray RLlib, we enhance the Agent Network of QMIX and integrate Random Network Distillation(RND). This enables the extraction of patterns and temporal features from partial observations of agents, confirming the potential for improving the acquisition of sparse reward experiences through intrinsic rewards.

Influence of Community Participation of Rural Students on Leadership Skill (농촌지역 학생의 지역사회참여가 리더십기술에 미치는 영향)

  • Lee, Chae-Shik
    • Journal of Agricultural Extension & Community Development
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    • v.19 no.2
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    • pp.355-380
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    • 2012
  • Youth leadership development is crucial domain of youth development. The study was to analyze the influences of youth community participation and organizational engagements on youth leadership development. Community participation of youth was categorized fours factors; service activity, school engagement, conversation participation and political activity. The survey was employed by rural students in Daegu and KoungBuk area. Major findings of the study were as followed; First rural students' community participation of eup-myoun area were higher than that of outside area. Second, rural students' participating community organization of eup-myoun area were higher than that of outside area. Third, youth leadership skill was positively influenced by students school engagement. The study showed that youth leadership is positively influenced by community participation of rural students. The study suggested that rural youth should encourage to participate community organization and community activities for developing youth leadership skill.

A Synthetic Enviornment Based Engagement Simulation Model (합성환경 기반 교전모의)

  • Park, Sang-Chul;Seong, Kil-Young
    • Korean Journal of Computational Design and Engineering
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    • v.15 no.4
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    • pp.271-278
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    • 2010
  • Weapon systems for future war require operating various war scenarios that are getting complex. Similarly, modeling and simulation technique is getting attention to acquire more effective weapon systems. Several S/W tools exist for simulating small scale engagements which depict a kind of war. However, it is very hard to model combat objects more systematic, and reuse them. To overcome these difficulties, this paper presents a modeling methodology for simulating small scale engagement using the DEVS-formalism. In this paper, we systematically classified and defined combat objects, likewise, explain a framework for a small scale combat simulation.