• 한국수학교육학회지시리즈A:수학교육
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• 제43권2호
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• pp.177-186
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• 2004

In this paper, we introduce new functional definitions for school geometry based on DGS (dynamic geometry system) teaching-learning environment. For the vertices forming a geometric figure, we first consider the relationship between the independent vertices and dependent vertices, and using this relationship and educational considerations in DGS, we introduce functional definitions for the geometric figures in terms of its independent vertices. For this purpose, we design a new DGS called JavaMAL MicroWorld. Based on the needs of new definitions in DGS environment for the student's construction activities in learning geometry, we also design a new DGS based geometry curriculum in which the definitions of the school geometry are newly defined and reconnected in a new way. Using these funct onal definitions, we have taught the new geometry contents emphasizing the sequential expressions for the student's geometric activities.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1998년도 추계학술대회 학술발표 논문집
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• pp.461-467
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• 1998

Although many methods of knowledge acquisition has been developed in the expert systems field, such a need for causal knowledge acquisition has not been stressed relatively. In this respect, this paper is aimed at suggesting a causal knowledge acquisition process, and then investigate the causal knowledge-based inference process. A vehicle for causal knowledge acquisition is FCM (Fuzzy Cognitive Map), a fuzzy signed digraph with causal relationships between concept variables found in a specific application domain. Although FCM has a plenty of generic properties for causal knowledge acquisition, it needs some theoretical improvement for acquiring a more refined causal knowledge. In this sense, we refine fuzzy implications of FCM by proposing fuzzy implications of FCM by proposing fuzzy causal relationship and fuzzy partially causal relationship. To test the validity of our proposed approcach, we prototyped a causal knowledge-driven inference engine named CAKES and then experime ted with some illustrative examples.

• Journal of Information Technology Applications and Management
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• 제13권4호
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• pp.155-165
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• 2006

Along with the evolution of wireless internet environment, information services in mobile internet are being explosively increased. However, due to the high expense for the use of those services, it is not easy to collect the devoted customers. In order to overcome the adverse conditions, the service should be supported by a strategic application system which facilitates easier and fast service for customer's information needs than that of traditional on-line internet. In this paper, we investigate the strategy how to provide the information service under the customer satisfaction, and also consider some ways of personalization of information service and information provision in real-time. As a result of the works, we develop a system, MoSA-CRM(Mobile Service Application based on CRM) to support customer-oriented information service. We believe that the MoSA-CRM system can provide some benefits for information providers in mobile e-commerce market such as flexibility in business strategy, systematic customer relationship management, and growth in financial ability.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 추계학술대회 논문집 전기설비전문위원
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• pp.80-82
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• 2005

Lightning surge damages of low voltage equipments in building are increasing due to increase in electrical and communication networks in the information-oriented society. And electrical circuits with semiconductor are very weak against lightning surge. To achieve effective method of surge protection on low voltage lines, there are needs for the relationship between propagation aspects of lightning surge and arrangement of indoor wire. This paper describes the experimental study on the relationship between them. This result may be raw data for establishment of surge protection system.

• 한국실내디자인학회논문집
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• 제37호
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• pp.63-70
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• 2003

Housing market in korea has changed from seller's market to buyer's market since mid of 1990. The housing contractors also changed their conventional ideas and strategies of design of housing facilities in order to survive in the housing industry, They look for ways and means to better respond to client's needs and to better serve user's values. Recently customer relationship management(CRM) technique has been introduced in the housing business. CRM gives emphasis on ongoing relationship with customers. Housing cultural center is a place where customers and contractors can exchange informations. This study aims to extract design and operation issues of housing cultural center.

• Safety and Health at Work
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• 제14권1호
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• pp.78-84
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• 2023

Background: Since the advent of the COVID-19 pandemic, physicians have been the unsung heroes of the pandemic. However, many are about to give up the battlefield. This study investigated the effect of occupational moral injury on physicians' career abandonment intention, taking into account the possible mediating role of emotional exhaustion. Methods: Cross-sectional data collected from 201 physicians were analyzed using the partial least squares structural equation modeling (PLS-SEM) with SmartPLS to determine the relationship among physicians' moral injuries, emotional exhaustion, and career abandonment intention. Results: The results indicated that occupational moral injury was positively related to emotional exhaustion and career abandonment intention. In addition, emotional exhaustion was found to play a mediating role in the relationship. Conclusion: To reduce physicians' intention to leave their career, physicians should be prepared for moral injury and psychological issues by offering psychological support and meeting their needs early at both the individual and organizational levels during and after the pandemic.

• 융합경영연구
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• 제5권3호
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• pp.30-38
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• 2017

The main target to do this analysis is to find out the competitiveness between 2 countries(Korea and USA) in the ship business industry. Ever since free from Japanese empire domination of modern history in Korean peninsular, Korea has been strong relationship with USA almost every fields. The purpose of this research is to realize which country is more competitive between 2 country's trade structure. This research conducted for period from 2000 to 2016. Expecting effect is to learn how to improve ship industry for 2 countries. Research method is used by comparative advantage trade theory. Even though Koran government has been accomplishing trade stimulus environment against USA ship industry, it is research limitation that overseas productions both Korean & USA are not available due to company business strategy. From early 50's, every USA industries hold a dominant position so far. Now, Korea is comparative advantage against that of USA in the field of ship industry. Sound competition relationship is good for both 2 countries for mutual benefits. The future prospect is Korea needs export market diversification to enlarge economic growth in the long run.

• 한국콘텐츠학회논문지
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• 제19권10호
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• pp.98-111
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• 2019

본 연구는 인간이 겪는 다양한 문제 중 관계중독 관련 국내 연구의 동향을 분석하여 차후 관계중독 연구 활성화를 위한 기초자료 및 새로운 연구방향을 제시하고자 하였다. 2005년부터 시작된 관계중독 연구 현황을 국내학술연구정보서비스, 학술데이터베이스, 국회도서관, 국립중앙도서관, 한국학술정보의 검색 서비스에 "중독", "관계중독", "중독관계" 등 키워드를 통해 검색된 국내 석박사 논문과 학술지를 중심으로 분석하였다. 합리적 연구결과를 도출하기 위해 "자료수집 및 선행연구 분석 - 분석기준 설정 - 자료코딩과 분석 - 연구결과 도출 및 발전방향 제시"의 4단계를 거쳤다. 연구결과 그동안 관계중독 연구가 총 67 편으로 아주 미미하였고, 연구대상이 성인초기 대학생 관계중독 중심으로 한정적이었다. 관계중독 연구 분야가 점점확대 되어 가고 있으며 탈 성매매 등 사회문제와 직접적 관계가 있음도 밝혀졌다. 또한 연구방법론과 사용척도에 있어서도 질적양적 다양한 방법론 활용 필요성과 국내정서에 맞는 새로운 척도 개발의 필요성도 제기된다. 이에 연구대상 및 분야 확대, 사회문제 관련성 연구 등 관련 이론과 요인분석, 연구모형 등 차후 관계중독의 다양한 연구의 필요성과 가치가 있음이 증명되었다.

• 한국임상약학회지
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• 제27권1호
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• pp.44-54
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• 2017

Background: Mental health issues such as stress and depression have been regarded as major social problems in Korea. We investigated the relationship between stress and depression with unmet medical needs (UMN). Methods: Using the nationwide database of 2010 Korea National Health and Nutritional Examination Survey (K-NHANES), subjects aged 19 years or above were selected (n=6,055). In the K-NHANES questionnaire, subjects were asked about their UMN experience, severity of stress, and perceived depression lasting at least 2 weeks over the past year. The effects of stress and depression on UMN were analyzed in 4 models established by adding predisposing, enabling and need factors in a step-wise fashion. The risks for UMN were also assessed according to the causes of UMN. Results: Individuals who felt stress 'very often' (odds ratio (OR) 3.28, 95% CI=2.23-4.86) and 'often' (OR 2.53, 95% CI=1.93-3.31) and who experienced depression (OR 1.68, 95% CI=1.35-2.10) reported significantly elevated UMN rates, and these effects were substantial especially for the individuals who had UMN due to economic constraint. Females, lower education level, lower income, unemployed status, and negative perceptions about health status were found to be additional risk factors for UMN. Conclusion: Our results confirmed the risks of stress and depression on UMN. It is strongly advisable to create initiatives to improve mental health, particularly stress and depression, and to fulfill individuals' medical utilization needs.

• 과학교육연구지
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• 제33권2호
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• pp.220-236
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• 2009

이 연구의 목적은 대구 경북지역 소외계층 과학영재의 정의적 특성 및 영재학생과 학부모의 요구조사를 위한 것이다. 연구대상은 대구 경북지역의 영재교육기관에서 소외계층 영재교육 프로그램에 참여하고 있는 대구지역 초 중학생 56명과 경북지역 초 중학생 37명, 총93명을 대상으로 하였다. 소외계층 과학영재의 정의적 특성을 알아보기 위하여 성취동기, 지적능력에 대한 신념, 학업능력에 대한 신념, 대인관계, 문제해결 및 과제 선호 검사, 가정의 심리적 환경 검사 과학 정의적 특성에 대한 검사 등을 실시하였다. 또한 소외계층 과학영재가 요구하는 교육과정과 교사의 요인, 행정적 지원에 대한 요구를 알아보기 위하여 학생과 학부모의 요구조사를 실시하였다. 연구의 결과, 소외계층 과학영재는 일반 영재와 지적능력에 대한 신념, 학업 능력에 대한 신념 그리고 가정의 심리적 환경에서 차이를 보였다. 또한 소외계층 과학영재들과 학부모의 요구분석 결과 교육과정의 개선, 교통시설, 소외계층 영재에 대한 지속적 관심과 교사의 적극적 노력을 당부하였다.