• 동남아시아연구
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• 제19권1호
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• pp.1-27
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• 2009

In the global economy, Korean foreign direct investment (FDI) to Southeast Asian countries expands rapidly as the countries try to make attracting investment strategies and to improve their investment condition. This paper, using panel-data for 2004-2006 in Indonesia, Vietnam and Malaya which are the main countries of Korean FDI for last ten years, shows analysis of the Korean FDI performance in Southeast Asia and compares the Korean firms' achievement with the case of China. According to the forty nine firms' official sources in Indonesia, Vietnam and Malaya, presented to the Export-Import Bank of Korea, over fifty percent of FDI consists of M&A. And Korean FDI has concentrated in the manufacturing industry. In order to measure the FDI performance, the study sets a regression function; operating profit ratio is the dependent variable and the total sales, expert ratio and investment period are the independent variables representing firms' volume, purpose of FDI and firms' adaptation to the local countries.

• Journal of Information Science Theory and Practice
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• 제7권1호
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• pp.29-38
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• 2019

Information retrieval is the challenge of the Web 2.0 world. The experiment of knowledge organisation in the context of abundant information available from various sources proves a major hurdle in obtaining information retrieval with greater precision and recall. The fast-changing landscape of information organisation through social networking sites at a personal level creates a world of opportunities for data scientists and also library professionals to assimilate the social data with expert created data. Thus, folksonomies or social tags play a vital role in information organisation and retrieval. The comparison of these user-created tags with expert-created index terms, author keywords and title words, will throw light on the differentiation between these sets of data. Such comparative studies show revelation of a new set of terms to enhance subject access and reflect the extent of similarity between user-generated tags and other set of terms. The CiteULike tags extracted from 5,150 scholarly journal articles in marine science were compared with corresponding Aquatic Science and Fisheries Abstracts descriptors, author keywords, and title terms. The Jaccard similarity coefficient method was employed to compare the social tags with the above mentioned wordsets, and results proved the presence of user-generated keywords in Aquatic Science and Fisheries Abstracts descriptors, author keywords, and title words. While using information retrieval techniques like stemmer and lemmatization, the results were found to enhance keywords to subject access.

• 대한지역사회영양학회지
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• 제19권6호
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• pp.550-557
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• 2014

Objectives: This study was conducted to examine the preferences and needs of typical Korean females adults for food and nutrition information provided by the mass media. Methods: A total of 343 females (77 in their 20s, 85 in their 30s, 88 in their 40s and 93 in their 50s) residing in the Seoul/Gyeonggido area was surveyed on general characteristics, main sources of food and nutrition information and needs for sources and contents of nutrition information. Results: The survey showed that typical Korean females obtained knowledge of food and nutrition mainly through the Internet (30.4%) and broadcasting (29.0%). Typical Korean females were interested in 'dietary management for weight control' (21.9%), 'the prevention and treatment of disease' (20.0%), 'food safety' (16.8%), 'proper dietary habits' (14.6%), 'cookery' (11.8%), 'functional foods' (9.6%), 'restaurant details' (3.5%) and 'life-cycle-specific dietary guideline' (1.6%). Needs for food and nutrition program forms on TV were 'educational programs' (34.3%), 'documentaries' (20.8), 'expert lecture-style' (13.0%), 'entertainment programs' (11.9%), 'expert conversation' (11.4%), 'news-style' (4.6%) and 'public campaign advertisements' (4.0%). On the Internet, 38.6% of the respondents preferred to get information provided by food and nutrition-related institutions (38.6%) while 26.1% preferred webtoons for nutritional information. The favored forms in mobile applications were 'monitoring their diets' (29.5%), 'data-based texts information' (21.4%), 'experts feedback' (20.6%), 'communities' (15.1%) and 'games' (13.1%). The rates of the preference to obtain information from experts such as nutritionists and dietitians and doctorsor dietitian turned reporters increased markedly with older ages. Conclusions: Since the mass media is a main source of food and nutrition information for the general public, the effectiveness and accuracy of the information provided should be enhanced by taking the needs of the public into account. The quality of information should be improved by involving more nutrition experts.

• 지식경영연구
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• 제25권2호
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• pp.115-134
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• 2024

인터넷의 지속적인 발전과 다양한 모바일 기기의 확산으로 인해 소비자 구매결정에 대한 인터넷 구전의 영향력은 끊임없이 증가하고 있는 상황이다. 그러나 다양한 정보원으로부터 상반된 내용의 많은 정보를 접하는 소비자들은 끊임없이 정보의 신뢰성에 대해 고민하게 되고 이에 따라 제품 종류 별 구전 영향력이 큰 정보원의 유형에 대한 연구가 지속되고 있다. 이에 본 연구에서는 정보원 유형간 구전방향이 불일치할 경우, 소비자들이 어떠한 정보원의 구전에 더욱 영향을 받는지 온라인 구전을 전문가와 일반소비자 구전으로 나눈 후, 계층적 베이지언 분석방법론을 통해 분석하였다. 연구 결과, 전문가 구전과 일반소비자의 구전 방향성이 일치할 경우에는 기존 연구와 같이 구매의도에 정의 영향을 미치는 것을 확인하였다. 나아가 전문과 구전과 일반소비자의 구전 방향성이 불일치할 경우에는 소비자의 구매의도가 전문가 보다는 일반소비자의 구전 방향성에 더욱 영향을 받는 것을 확인할 수 있었다. 본 연구에서는 표본집단의 크기가 작더라도 데이터 시뮬레이션을 통해 분석이 가능한 베이지언 방법론을 적용해 분석을 시도하였다. 이를 통해 한정된 데이터로 여러 소집단에 대한 분석 가능성을 확인한 것은 향후 더욱 세분화된 제품군과 다양한 정보원 유형의 온라인 구전 효과 연구에 기여하고 온라인 마케팅 관리자에게 유용한 실무적 시사점을 제공할 것으로 기대한다.

• 과학교육연구지
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• 제46권3호
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• pp.223-236
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• 2022

이 연구의 목적은 초등학교 예비교사들을 대상으로 미세플라스틱 배출원에 대한 인식을 조사하는 것이다. 연구 참여자는 학부 남학생 75명과 여학생 91명이었다. 미세플라스틱 배출원에 관한 선행연구들을 참조하여 15문항으로 구성된 설문지를 개발한 후, 전문가 검토 및 예비연구를 통해 수정하였다. 설문 결과, 응답자의 80% 이상이 이전에 뉴스, 인터넷, TV 등을 통해 미세플라스틱에 대해 들어본 경험이 있다고 하였다. 그러나 실험복, 물티슈, 황사용마스크, 종이컵 등이 미세플라스틱 원인물질로 제조된 것을 인지하지 못하는 경향이 있었다. 미세플라스틱 오염이 예상되는 상황을 묻는 설문에서도 '달리는 자동차의 타이어가 마모된다'와 '바닥에 붙어있는 껌이 작아진다'에 대한 선택 빈도가 상대적으로 낮았다. 이러한 결과는 상당수 예비교사들이 합성섬유나 합성고무가 미세플라스틱의 배출원임을 인지하지 못한다는 것을 보여준다. 미세플라스틱 문제에 대한 태도에서는 성별 차이가 나타났다. 즉, 여 예비교사들은 관련 문제에 더 관심을 보이고, 해결에 대한 참여 의지를 더 보이며, 미세플라스틱 관련 교육의 필요성을 더욱 절감하였다. 향후 과학교육을 위한 함의를 논의하였다.

• 한국철도학회논문집
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• 제12권6호
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• pp.921-926
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• 2009

신뢰도 기반 유지보수의 연구가 진행됨에 따라 설비의 신뢰도를 바탕으로 한 효율적인 유지보수 업무가 가능하게 되었다. Risk Priority Number(RPN)는 시스템을 구성하고 있는 설비에 대한 Severity(S), Occurrence(O), Detection(D)을 각각 평가하고 이를 하나의 통합된 수치로 표현함으로써 설비간의 유지보수 우선순위에 관한 정보를 제공한다. 하지만 철도 전력 설비와 같이 통계적인 고장 데이터가 부족하거나 신뢰성이 떨어지는 경우에는 이들의 평가가 객관적으로 이루어지기 어렵다. 따라서 본 논문에서는 설비의 Occurrence를 평가하기 위해 퍼지 이론을 이용한 고장률 가공 방법을 제시하고, 객관적인 Severity와 Detection 평가를 이용하여 Risk Priority Number를 계산하는 새로운 방법을 제시하였으며, 이를 철도 변전소 모의 시스템에 적용시켜 보았다.

• KIEAE Journal
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• 제10권1호
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• pp.33-44
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• 2010

These days, the use of alternative energy is recognized as one of countermeasures to rising oil prices and climate-change agreements. Especially, it is regarded as a main element to realize 'Low-Carbon Green Growth', one of the key policies of MB government. However, though alternative energy, renewable energy, is a main policy issue of the present administration, there are many problems to solve: the lack of recognition of its energy, the low level of its technology, its expert's shortage, and its limited application fields. Therefore, to stimulate the use of alternative energy in Korea and to change the recognition of this energy, it is needed to utilize it to urban street furniture that many people visit and use. In particular, if alternative energy is first applied to street furniture that needs energy for its management, the effect of publicity and energy saving will be so great. In this study, for the basic research to introduce and promote various alternative energy sources such as solar power, wind power, small hydro power, and human power, we analyzed the present condition of development of Korean and foreign street furniture items. Furthermore, we evaluated the level of development of these street furniture products and the design types of them and from these evaluations suggested the design direction that can solve problems in development and improve the possibility of application of these energy sources to these street furniture items. Through these analyses, this study aims to enhance the image of future environment-friendly city and make new index for the application of alternative energy.

• Journal of Information Science Theory and Practice
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• 제7권4호
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• pp.56-64
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• 2019

Planting intercropping in rubber plantations is another alternative for generating more income for farmers. However, farmers still lack the knowledge of choosing plants. In addition, information for decision making comes from many sources and is knowledge accumulated by the expert. Therefore, this research aims to create a decision support system for growing rubber trees for individual farmers. It aims to get the highest income and the lowest cost by using semantic web technology so that farmers can access knowledge at all times and reduce the risk of growing crops, and also support the decision supporting system (DSS) to be more intelligent. The integrated intercropping ontology and rule are a part of the decision-making process for selecting plants that is suitable for individual rubber plots. A list of suitable plants is important for decision variables in the allocation of planting areas for each type of plant for multiple purposes. This article presents designing and developing the intercropping ontology for DSS which defines a class based on the principle of intercropping in rubber plantations. It is grouped according to the characteristics and condition of the area of the farmer as a concept of the rubber plantation. It consists of the age of rubber tree, spacing between rows of rubber trees, and water sources for use in agriculture and soil group, including slope, drainage, depth of soil, etc. The use of ontology for recommended plants suitable for individual farmers makes a contribution to the knowledge management field. Besides being useful in DSS by offering options with accuracy, it also reduces the complexity of the problem by reducing decision variables and condition variables in the multi-objective optimization model of DSS.

• 융합정보논문지
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• 제12권4호
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• pp.212-218
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• 2022

본 연구는 의료소비자의 만성질환 유무에 따른 정보탐색행태를 파악하고자 수행되었다. 이를 위해 2016년 2월 9일에서 2월 11일까지 서울 소재 대학병원에 방문한 환자들을 대상으로 설문조사를 실시하였으며, SPSS 26.0 통계 패키지를 활용하여, 총 240명의 자료를 분석하였다. 주요 분석 결과는 다음과 같다. 첫째, 만성질환자들은 만성질환이 없는 사람들보다, 전문가 정보원과 경험적 정보원을 많이 이용한 것으로 나타났다. 둘째, 질환과 관련해서는 영양관리, 운동 관리 및 동일 질환자들의 사례를 많이 탐색하는 것으로 나타났다. 마지막으로 병원과 관련해서 만성질환자들은 대기시간과 진료비를 많이 알아본 것으로 나타났다. 본 연구는 만성질환자들의 수요를 반영한 효율적인 정보제공과 마케팅전략 수립의 기초자료를 제공한 의의가 있다.

• 대한지역사회영양학회지
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• 제22권3호
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• pp.207-217
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• 2017

Objectives: The aim of this study was to examine self-management status, nutritional knowledge, barrier factors in dietary management and needs of nutritional management program for women with Gestational Diabetes Mellitus (GDM). Methods: A total of 100 women with GDM were recruited from secondary and tertiary hospitals in Seoul. The questionnaire composed of general characteristics, status of self-management, dietary habits, nutrition knowledge, barrier factors in dietary management, needs for nutrition information contents and nutritional management programs. Data were collected by a self-administered questionnaire. All data were statistically analyzed using student's t-test and chi-square test using SAS 9.3. Results: About 35% of the subjects reported that they practiced medical nutrition and exercise therapy for GDM control. The main sources of nutrition information were 'internet (50.0%)' and 'expert advice (45.0%)'. More than 70% of the subjects experienced nutrition education. The mean score of nutrition knowledge was 7.5 point out of 10, and only about half of the subjects were reported to be correctly aware of some questions such as 'the cause of ketosis', 'the goal of nutrition management for GDM', 'the importance of sugar restriction on breakfast'. The major obstructive factors in dietary management were 'eating more than planned when dining out', 'finding the appropriate menu when dining out'. The preferred nutrition information contents in developing management program were 'nutritional information of food', 'recommended food by major nutrients', 'the relationship between blood glucose and food', 'tips on menu selection at eating out'. The subjects reported that they need management program such as 'example of menu by calorie prescription', 'recommended weight gain guide', 'meal recording and dietary assessment', 'expert recommendation', 'sharing know-how'. Conclusions: Based on the results of this study, it is necessary to develop a program that provide personalized information by identifying the individual characteristics of the subjects and expert feedback function through various information and nutrition information contents that can be used in real life.