• 한국기록관리학회지
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• 제20권4호
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• pp.185-203
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• 2020

PREMIS는 OAIS의 개념적 프레임워크의 한계를 넘어 보존 실무에 적용할 수 있도록 개발되었지만, 각 메타데이터 요소들을 실제 데이터와 어떻게 연결시킬 것인지에 대한 사례와 지침이 명확하지 않아 디지털 아카이브에서 실제 보존 메타데이터를 설계하거나 구현하는데 어려움이 있다. 이에 본 연구는 다양한 디지털 아카이브의 환경에서 디지털 자원을 관리하고 보존의 목적으로 활용되고 있는 PREMIS 3.0 기반의 보존 메타데이터 실제 사례들을 조사하고 보존 메타데이터 구현 및 설계를 위한 시사점을 도출하고자 하였다. 분석 결과를 토대로 PREMIS의 응용프로파일 지침에 따라 디지털 아카이브의 보존 메타데이터 설계 시 고려할 수 있는 보존 메타데이터 요소들을 제안하였다.

• 지역사회간호학회지
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• 제24권3호
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• pp.323-331
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• 2013

Purpose: The study attempted to examine whether the group art therapy using a collage medium and reminiscence therapy prevented or reversed dementia, prevented depression, and improved the quality of life of elderly women at high risk for dementia in community public health centers. Methods: As a quasi-experimental study with a non-equivalent control group, this study used a pre-post design. The subjects consisted of a random sample of women over 65 years of age who had been registered as being at high-risk for dementia at the Public Health Center of the G City, and the Dementia Support Center. Of these elders, 30 were assigned to the experimental group and 33 to the control group. The intervention was conducted twice a week for 5 weeks. $x^2$-test, t-test, Wilcoxon test were used to analyze the data. Results: After the program, cognitive function, depression, and quality of life were significantly better in the experimental group than in the control group. Conclusion: The group art therapy can be utilized in community-based nursing practices by identifying and registering those who are at high risk for dementia. The results should prove useful when designing future intervention strategies targeting elderly individuals residing in communities.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 1997년도 춘계 학술대회 발표집
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• pp.23-28
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• 1997

We discuss development of a simulator for automated manufacturing systems (AMSs) which have sophisticated automated material handling equipments and complicated work flows. The simulator is designed to satisfy the following requirements. A user should be able to easily configure or specify an AMS through a graphical user interface (GUI) and minimal data input. The user should be able to model diverse and complied control logic for automated material handling systems like automated guided vehicle (AGV) systems, robot workcell systems and conveyor systems as well as complicated job flow program. Real time animation is desired. Finally, the simulator should be easily maintained and extended. To satisfy the requirements, we use an object-oriented paradigm for modeling, designing, and programming of the simulator. We use an object-oriented modeling framework to design the modeling elements library, and take the process interaction approach for scheduling processes and events. To model a user-defined diverse control logic, we also develop a script language and its interpreter. We explain design and implementation strategies. We implement the simulator using Visual C++ 4.2 and Open GL on Windows NT and the Windows95. Some modeling examples will be demonstrated.

• 한국농촌간호학회지
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• 제5권1호
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• pp.33-39
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• 2010

Purpose: This study was done to identify change in self-concept of smoking experience in middle school students. Method: The study was a longitudinal survey design and used only the responses on self-concept and smoking state from the data of the Korea Youth Panel Survey (KYPS). The sample for this study consisted of 3,449 middle school students and the data were collected over a two-year period (2003-2004). Results: Self-esteem scores for the first and second year were significantly higher and self-stigma and aggression scores were significantly lower in the non-smoking maintenance group. There was a significant increase in self-esteem scores for students in second year who quit smoking compared to those in first year. There was a significant decrease in scores for attachment to surrounding people and emotional sense of control in second year students compared to those first year for students in the non-smoking maintenance group and the group that quit smoking. Self-intimacy scores were significantly lower in the smoking maintenance group. There was a significant increase in sex-role identity scores in second year students compared to those in first year for students in the group who newly started smoking. Conclusion: Findings from this study can contribute to designing appropriate smoking prevention strategies to improve self-constructs related smoking experiences in adolescents.

• Journal of Communications and Networks
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• 제5권1호
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• pp.43-54
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• 2003

Due to insufficient available bandwidth resources and the continuously growing demand for cellular communication services, the channel assignment problem has become increasingly important. To trace the optimal assignment, several heuristic strategies have been proposed. So far, most of them focus on the small-scale systems containing no more than 25 cells and they use an anachronistic cost model, which does not satisfy the requirements ity. Solving the small-scale channel assignment problems could not be applied into existing large scale cellular networks' practice. This article proposes a decomposition approach to solve the fixed channel assignment problem (FCAP) for large-scale cellular networks through partitioning the whole cellular network into several smaller sub-networks and then designing a sequential branch-and-bound algorithm that is made to solve the FCAP for them sequentially. The key issue of partition is to minimize the dependences of the sub-networks so that the proposed heuristics for solving smaller problems will suffer fewer constraints in searching for better assignments. The proposed algorithms perform well based on experimental results and they were applied to the Taiwan Cellular Cooperation (TCC) in ChungLi city to find better assignments for its network.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2003년도 가을 학술발표논문집 Vol.30 No.2 (1)
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• pp.118-120
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• 2003

현재 웹의 패러다임은 정적인 웹 페이지들의 모임에서부터 기업이 비즈니스를 더 신속하고 효율적으로 수행할 수 있게 하는 웹 서비스라는 동적인 웹으로 변화하고 있다. 이를 위하여 XML을 기반으로 하는 SOAP WSDL, UDDI, WSFL, XLANG, BPML. WSCL, WSCI 및 BPEL4WS 등과 같은 다양한 표준들과 더 불어 시맨틱 웹과 온톨로지를 기반으로 하는 컴퓨터에 의해서 자동으로 이해될 수 있는 방법으로 웹 서비스를 언급하는 UPML. WSMF 및 DAML-S와 같은 연구들이 최근에 대두되고 있다. 우리는 이 논문에서 시맨틱 웹을 기반으로 하는 지능형 웹 서비스를 가능하게 하기 위하여 새로운 시맨틱 웹 서비스 마크업 언어를 설계하기 위한 전략들을 제시한다. 이를 위하여 먼저 지능형 웹 서비스를 위한 서비스 마크업 언어의 요구사항들을 분석하고, 기존 웹 서비스를 위한 표준들과 연구들을 비교하고 분석한다. 그리고 효과적인 지능형 웹 서비스를 위한 새로운 마크업 언어의 설계를 위한 방법론을 제시한다. 이 논문의 연구결과들은 시맨틱 웹을 기반으로 하는 지능형 웹 서비스를 위한 마크업 언어의 필요성 및 기존 노력들의 문제점들을 지적함으로써 보다 개선된 웹 서비스를 위한 근간으로 사용될 수 있다. 뿐만 아니라 기존 연구들이 추후 보완해나가야 할 사항들을 언급함으로써 보다 향상된 지능형 웹 서비스의 실현을 가능하게 한다.

• 대한산업공학회지
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• 제39권6호
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• pp.562-576
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• 2013

Power TAC (Power Trading Agent Competition) is an agent-based simulation for competitions between electricity brokering agents on the smart grid. To win the competition, agents obtain electricity from the electricity wholesale market among the power plants. In this operation, a key to success is balancing the demand of the customer and the supply from the plants because any imbalance results in a significant penalty to the brokering agent. Given the bidding on the wholesale market requires the price and the quantity on the electricity, this paper proposes four different price estimation strategies: exponentially moving average, linear regression, fuzzy logic, and support vector regression. Our evaluations with the competition simulation show which strategy is better than which, and which strategy wins in the free-for-all situations. This result is a crucial component in designing an electricity brokering agent in both Power TAC and the real world.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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• pp.281.1-281.1
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• 2013

Shape control of gold nanocrystal is still one of the most important challenges remaining to achieve geometry dependent properties. Thus far, several strategies have been developed to control the shape of nanoparticles, such as adding capping agents and diverse additives or adjusting the temperature and pH. Here, we used an already established seed-mediated method that allowed us to focus on controlling the growth stage. Cetyltrimethylammonium bromide (CTAB) and ascorbic acid (AA) were used as the ligand and the reducing agent, respectively, without using any additional additives during the growth stage. We investigated how the relative ratio of CTAB and AA concentrations could be a major determinant of nanoparticle shape over a wide concentration range of CTAB and AA. As a result, a morphology diagram was constructed experimentally that covered the growth conditions of rods, cuboctahedra, cubes, and rhombic dodecahedra. The trends in the morphology diagram emphasize the importance of the interplay between CTAB and AA. Furthermore, high-index faceted gold nanocrystal was obtained by two step seeded growth. Already synthesized cubic particles developed into hexoctahedral nanocrystal consisting of 48 identical {321} facets, which indicates that the growth of gold nanocrystal is affected by initial morphology of seed particles. The hexoctahedral gold nanoparticles can be used in catalysis and optical applications which exploiting their unique geometry. Our research can provide useful guidelines for designing various facetted geometries.

• International Journal of Contents
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• 제12권2호
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• pp.49-57
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• 2016

This paper aims to explore instructional design of a cyber classroom for secondary students' basic English language competence. A paucity of support for low or under achieving students' English learning exists particularly at the secondary level. In order to bridge the gap, there has been demand for online educational resources considered to be an effective tool in improving students' self-directed learning and motivation. This study employs a comprehensive approach to instructional design for the asynchronous cyber classroom with the underlying premise that different learning theories can be applied in a complementary manner to serve different pedagogical purposes best. Gagné's conditions of learning theory, Bruner's constructivist theory, Carroll's minimalist theory, and Vygotsky's social cognitive development theory serve as the basis for designing instruction and selecting appropriate media. The ADDIE model is used to develop online teaching and learning materials. Twenty-five key grammatical features were selected through the analysis of the national curriculum of English, being grouped into five units. Each feature is covered in one cyber asynchronous class. An Integration Class is given at the end of every five classes for synthesis, where students can practice grammatical features in a communicative context. Related theories, pedagogical practices, and practical web-design strategies for cyber Basic English classes are discussed with suggestions for research, practice and policy to support self-directed learning through a cyber class.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.1119-1128
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• 2021

This study aims to investigate a model for reducing workplace deviance from employees' perspectives. Specifically, it examines the relationship between workplace spirituality and workplace deviance through the improvement of organizational commitment. Through the quantitative approach, questionnaires were distributed to 400 civil servants in the various government agencies in Indonesia. Structural Equation Model with Analysis of Moment Structures (SEM-AMOS) was used to analyze the data and test the hypotheses. The results reveal that workplace spirituality has no significant negative effect directly on workplace deviance, but it has a significantly positive effect on organizational commitment. Organizational commitment also has a significant negative effect on workplace deviance. The non-significance of workplace spirituality's direct effect on workplace deviance proves that there is a full mediation effect of organizational commitment. It implies that, to reduce workplace deviance, merely workplace spirituality is not adequate, but it should enhance organizational commitment. The findings can add an understanding of the empirical evidence related to the relationship between workplace spirituality, organizational commitment, and workplace deviance. Practically, the top decision-makers in civil servant institutions need to consider the right strategies, policies, and real efforts to carry out workplace spirituality practices and organizational commitment by designing a control system.