• The Korean Journal of Archival Studies
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• no.32
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• pp.127-176
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• 2012

Metadata is well recognized as one of the foundational factors in archiving and long-term preservation of digital resources. There are several metadata standards for records management, archives and preservation, e.g. ISAD(G), EAD, AGRkMs, PREMIS, and OAIS. Consideration is important in selecting appropriate metadata standards in order to design metadata schema that meet the requirements of a particular archival system. Interoperability of metadata with other systems should be considered in schema design. In our previous research, we have presented a feature analysis of metadata standards by identifying the primary resource lifecycle stages where each standard is applied. We have clarified that any single metadata standard cannot cover the whole records lifecycle for archiving and preservation. Through this feature analysis, we analyzed the features of metadata in the whole records lifecycle, and we clarified the relationships between the metadata standards and the stages of the lifecycle. In the previous study, more detailed analysis was left for future study. This paper proposes to analyze the metadata schemas from the viewpoint of tasks performed in the lifecycle. Metadata schemas are primarily defined to describe properties of a resource in accordance with the purposes of description, e.g. finding aids, records management, preservation and so forth. In other words, the metadata standards are resource- and purpose-centric, and the resource lifecycle is not explicitly reflected in the standards. There are no systematic methods for mapping between different metadata standards in accordance with the lifecycle. This paper proposes a method for mapping between metadata standards based on the tasks contained in the resource lifecycle. We first propose a Task Model to clarify tasks applied to resources in each stage of the lifecycle. This model is created as a task-centric model to identify features of metadata standards and to create mappings among elements of those standards. It is important to categorize the elements in order to limit the semantic scope of mapping among elements and decrease the number of combinations of elements for mapping. This paper proposes to use 5W1H (Who, What, Why, When, Where, How) model to categorize the elements. 5W1H categories are generally used for describing events, e.g. news articles. As performing a task on a resource causes an event and metadata elements are used in the event, we consider that the 5W1H categories are adequate to categorize the elements. By using these categories, we determine the features of every element of metadata standards which are AGLS, AGRkMS, PREMIS, EAD, OAIS and an attribute set extracted from DPC decision flow. Then, we perform the element mapping between the standards, and find the relationships between the standards. In this study, we defined a set of terms for each of 5W1H categories, which typically appear in the definition of an element, and used those terms to categorize the elements. For example, if the definition of an element includes the terms such as person and organization that mean a subject which contribute to create, modify a resource the element is categorized into the Who category. A single element can be categorized into one or more 5W1H categories. Thus, we categorized every element of the metadata standards using the 5W1H model, and then, we carried out mapping among the elements in each category. We conclude that the Task Model provides a new viewpoint for metadata schemas and is useful to help us understand the features of metadata standards for records management and archives. The 5W1H model, which is defined based on the Task Model, provides us a core set of categories to semantically classify metadata elements from the viewpoint of an event caused by a task.

• Korean Journal of Social Welfare
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• v.64 no.2
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• pp.325-354
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• 2012

The current research intends to analyse the construction process of gender in the biographies of migrant women. Ten autobiographical-narrative interviews with Korean female migrant workers in Germany were conducted and the following conclusions were ascertained through the analysis of Schutze's autobiographical-narrative interview: The genders in their biographies were constructed similar before their marriage, but different after their marriage according to the work-family balanced type and the family centered type. Before their migration the 'process of life' as female high school students and female workers showed that both types had partially deconstructed a sex-segregated gender. The process of life as female migrant workers after their migration showed that both types had partially constructed a sex-neutral gender. The process of life after their marriage exhibited that the former strengthened and strengthens a sex-neutral gender in a double position as female migrant workers and female marriage migrants, but the latter reconstructed a sex-segregated gender again and intensifies this in a process of time. Based on these results, some implications for the social work practice were addressed, which emerged from the understanding on the gender in the biographies of migrant women.

• 한국신재생에너지학회:학술대회논문집
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• 2011.05a
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• pp.199-199
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• 2011

ATES(Aquifer Thermal Energy Storage) 열펌프 시스템은 기존의 다양한 열원 적용 시스템 대비 효율이 우수한 것으로 알려져 유럽과 미국에서 건물 냉난방 시스템으로 적용되고 있다. 특히, ATES 시스템은 기존의 냉난방 시스템 대비 경제성이 우수한 것으로 알려져 있으나 국내에서는 이에 대한 연구 결과는 전무한 실정이다. 본 연구에서는 ATES 열펌프 시스템의 실증 성능 결과를 분석하였으며, LNG 보일러와 에어컨을 사용하는 기존의 냉난방 시스템을 비교시스템으로 ATES 열펌프 시스템의 경제성 평가를 수행하였다. ATES 시스템의 연간 실증 성능 실험결과 ATES 시스템은 외기온도와 무관하게 연중 안정적인 성능을 나타내었다. 경제성 평가시에 생애주기법(Life Cycle Cost)을 적용하여 ATES 열펌프 시스템의 설치 및 운전에 필요한 총 소요비용을 산정하고, 이 결과를 바탕으로 투자회수기간법을 통해 ATES 시스템의 투자회수 기간을 산정하였다. 생애주기법 적용 시에 현재가치법을 사용하였으며, 현재가치법은 수명주기에 발생하는 모든 투자비용과 절감액을 일정한 시점을 기준으로 등가환산하는 방법을 의미한다. 현재가치법에 사용되는 현재가치는 초기비용과 현재가치계수의 곱으로 나타나는데, 여기에서 현재가치계수는 임의의 이자율로 일정기간 동안 정기적인 할부금액이 적립될 때의 현재금액을 구하기 위해 사용하는 계수를 의미한다. 전기와 LNG는 각각 2009년 7월의 (주)한국전력공사와 (주)한국가스공사의 고시요금을 적용하였다. 본 시스템은 실증 설비용량인 20RT를 대상 건물로 가정하였고, 초기투자비는 크게 공사비와 냉난방 설비 구입비로 구성되어 있으며, 기본적인 물가지표는 (사)한국물가정보(KPI)의 고시 데이터를 참조하였다. 각 시스템의 초기투자비는 ATES 시스템이 비교대상 기존 냉난방 시스템 대비 5.7배 높게 나타났다. 일일 8시간 사용기준으로 계절별 전력요금을 고려한 연간운전 비용은 ATES 시스템이 기존 시스템 대비 냉난방 시에 각각 77%와 16%를 나타내어 운전비용이 연간 절감되었고, 난방 운전 시 절감 비율이 냉방시보다 크게 나타났다. 두 시스템에 대한 생애주기비용을 산정하기 위하여 에어컨과 보일러의 기존시스템과 ATES 시스템의 가용연수를 모두 20년으로 설정하였고, 유지보수 비용은 초기투자비용의 2%로 설정하고, 할인율은 은행 예금이자를 기준으로 5%로 설정하였다. 전기와 LNG의 요금 상승률은 (사)한국물가정보를 바탕으로 각각 2%와 8%로 가정하였다. 이러한 조건에서 생애주기법을 이용한 경제성평가는 ATES 시스템의 경우 생애운전비용이 초기투자비용보다 작게 나타났으며, 기존 냉난방 시스템은 생애운전비용이 초기투자비용에 비하여 높게 나타났다. 본 연구 대상 ATES 열펌프 시스템의 실증 성능 데이터와 기존 문헌으로부터 얻은 냉난방 시스템의 성능 결과를 이용하여 생애주기 비용을 적용한 결과 ATES 시스템의 기존 시스템 대비 투자회수 기간은 6.62년으로 나타났다. 특히, 본 연구에서는 ATES 시스템이 국내 최초로 적용됨에 따라 스크린 등의 부품을 다소 고가의 제품으로 시스템에 적용하였으므로 ATES 시스템의 신뢰성과 안정성이 확보되면 초기 투자비 감소가 가능할 것으로 예상되며, 기존 시스템 대비 투자회수 기간은 더욱 감소될 수 있을 것으로 예상된다.

• Journal of Korean Home Economics Education Association
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• v.22 no.2
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• pp.61-79
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• 2010

The purposes of this study were to develop lesson plans of library assisted practical problem-based teaching-learning for 'life and career planning' unit in high school Technology Home Economics Subject and to compare the learning effect of this lesson plan with that of practical problem-based teaching-learning in class. The change in student's perception about home economics subject was also compared after two types of teaching-learning process. The contents of the high school Technology Home Economics textbooks and curriculum guide book for the year of 2007 curriculum revision were analyzed. Based on these analysis 10 library assisted practical problem-based teaching-learning lesson plans on 'life and carrer planning' unit were developed. The high school students living in Gyeonggi province as an experimental group participated in library assisted practical problem-based teaching-learning. The control group of students who had same condition with the experimental group were taught by same lesson plans in class. After the experiment, the changes in attitudes toward life and career planning and in perception about Home Economics subject were analyzed using Analysis of Covariance. The more significant positive attitudes toward life and career planning were found in the experimental group of students compared with those of the control group of students. And compared with the control group of students, the experimental group of student perceived more positively about characteristics of Home Economics subject. Thus, the following conclusion was made that the library assisted practical problem-based teaching-learning could be one of the useful teaching-learning methods to improve attitude toward life and career planning and perception about Home Economics subject.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.6
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• pp.299-323
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• 2018

This study confirmed the life career branching points, and studied qualitatively the career strategy and career identity at that time. The participants in this study were three students from third graders of middle school, three ones from third graders of high school, and three before and after college graduation, which correspond to the vertical transition stage of school education. Three participants were selected before and after 30 years of age, three before and after 40 years of age, and three before and after 60 years of age. Subject analysis of the contents of the 18 interviews, showed that the life career branching point appeared in middle school grade 3, high school grade 3, until employment after graduation, within 3 years after entering their first job, early 40 years, 60 years old, and 80 years old. Second, external situations were due to the influence of important others, or external stimuli, environment, and career events. Third, negative emotions were repeated for each life career branching point. Fourth, as a result of the interview, the career identity confusion was repeated in every life career branching point. Fifth, the career strategy at the life career branching point was categorized as an approach strategy and avoidance strategy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.8
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• pp.5212-5222
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• 2015

The purpose of this study is to analyze the structural relation among consciousness of lifelong education, leadership and life core competencies. The subjects were 607 university students who participated in the courses of the lifelong educator in Daejeon, Chungnam and Chungbuk province. As the results of the study, first, university students' consciousness of lifelong education had positive effects on their life core competencies. Second, university students' consciousness of lifelong education had positive effects on their leadership. Third, university students' leadership had positive effects on their life core competencies. Forth, university students' leadership had mediating effect between consciousness of lifelong education and life core competencies. In other words, university students' consciousness of lifelong education influences their leadership, and then it influences their life core competencies positively. These results can be used to change university students' consciousness of lifelong education and to develop their leadership and life core competencies. In addition, the results present that their participation rate can be increased through continuous interest and participation after their graduation. The study has a realistic point to operate lifelong educator training courses and lifelong education of university, so it is meaningful to provide the theoretical and practical implications for developing lifelong education.

• Journal of the Korea institute for structural maintenance and inspection
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• v.14 no.4
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• pp.102-110
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• 2010

The reliability evaluation may be a efficient method for estimating of the quantitative structural safety considering the effect of uncertainties included in high-speed railway bridges. The expected life-cycle cost(LCC) based upon the reliability evaluation will reasonably offer the safety level and design criteria of high-speed railway bridges. Therefore, this study determined the expected life-cycle cost and optimal design method of high-speed railway bridges on the basis of the result of the numerical analysis and reliability evaluation. For this, after creating various design method based upon the standard design of high-speed railway bridges, the numerical analysis is conducted on each of the alternative design methods. The reliability evaluation by the design strength limit state function is conducted considering the effect of external uncertainties on the basis of the numerical analysis result. The expected life-cycle cost of high-speed railway bridges is calculated on the basis of the reliability evaluation result by each of the alternative design methods. Also, the optimal design method is determined using the calculated expected life-cycle cost. In addition, The result of reliability evaluation and expected life-cycle cost of optimal design method are examined considering the effect of internal uncertainties. It is expected that the result of this study can be used as a basic information for the systematic safety evaluation and optimal structure design of high-speed railway bridges.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.2
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• pp.802-809
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• 2021

To cope with the increasing maintenance costs due to aging, the maintenance cost was evaluated from the perspective of asset management. The maintenance cost can be predicted based on the condition of the bridge, and the life cycle cost is used as an index. In general, the condition of a bridge has a wide distribution characteristic depending on the deterioration, load, and material characteristics. In this paper, to evaluate the effect of the bridge conditions on the life cycle cost, condition prediction models were constructed considering the service life, deterioration rate, and inspection error, which are the main variables of the bridge condition and life cycle cost calculation. In addition, condition prediction models were constructed based on the distribution of the health index to estimate the upper and lower bounds of the life cycle costs that can occur in individual bridges. Life cycle cost analysis showed that the life cycle cost differed significantly according to the condition of the bridge. Accordingly, research will be needed to increase the reliability of predicting the life cycle cost of individual bridges.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.6 no.10
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• pp.449-456
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• 2016

In this study we recomposed the life story of Min Tatyana who is a Koryo-saram, or in other words, an ethnic Korean residing Kazakhstan. The life story of an overseas Korean, or Koryo-saram to be exact, includes in itself their multi-level identity which consists of the period of the immigration of Koryo-sarams, the special incident of deportation, as well as life as people of the Soviet Union and Kazakhstan, and life as a Korean race. In this study, we were confirmed the texture of the Korean race thought ordinary korean Min Tatyana life who living in Kazakhstan. The life story of Min Tatyana was reconstituted into two stories as "growing up in a multicultural society as Koryo-Saram" and "to live a life as the descendants of independence activist". She was born in historically region Kyzylorda, where living Korean groups and now she is living in Almaty, where living the many koreans ethnic groups of Kazakhstan. Also, her parents were respected to the local residents and her grandfather of husband was famous independent activist. These aspects have helped keep her Korean ethnic identity. The life story of Min Tatyana is personal story and qualitative text, which shows social, cultural background of korean ethnic who living in Kazakhstan. This study is expected to help to confirm the Koryo-Saram characteristics and aspect of their multilayer life.

• Asia Marketing Journal
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• v.10 no.4
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• pp.99-121
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• 2009

Social networks can be a powerful force in marketing because they provide new ways to market to young generation. Though many studies on evaluation of customer lifetime value have been conducted, it is not clear how to assess the value of members within social networks. The purpose of this study is to evaluate members based on customer intangible value as well as customer lifetime value. Customer network value in terms of the power and influence within a network is analyzed through network structure analysis. Using Cyworld log file data, this study have shown that high percentage of members are very influential in terms of spreading or withholding information even though their CLV is low. It is expected that the findings of this research contribute to understand the interactive behaviors of members within networks and to provide valuable implications on new product launching and customer management strategies to marketers.