• Journal of Educational Research in Mathematics
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• v.14 no.3
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• pp.267-281
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• 2004

Many students feel the word problems are very difficult. This study analyzes the linguistic and cognitive factors that affect word problem solving so that we help students bring through the difficulty. There are a text base, a situation model, and a real world in the linguistic aspects. Students have a difficulty at the transition from text base to situation model(equation), and make lots of errors at the situation model. In the cognitive aspects, I investigated problem solving schemes, strategies, and complexity level. Students are likely to choose strategy by the contents which teacher instructed, but not by low complexity level, and mix up the amount of sugar and sugar water, and concentration. We can recognize how complex the types of word problems are to solve, which strategies students choose largely, and what errors that students make in the problem solving are.

• Journal of the Korean Data Analysis Society
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• v.20 no.6
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• pp.3127-3137
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• 2018

The study has been focused on identifying the impact of professors' types of leadership on major satisfaction, learning immersion in college students. To achieve this goal, the results of a survey of 543 affiliated students from september 2017 to november were as follows. Data processing has been done using the IBM SPSS statistics 25 program, and t-test and multi-return analysis were performed to determine the characteristics of the survey subjects, to verify the validity and reliability of the survey tools, and to identify differences and influence between factors. First, there was a difference between gender and grade, but by major, there was no difference. Second, learning immersion varies by major, gender and grade. Third, the factors that significantly influence a type of leadership's satisfaction with a major were shown to have a significant impact on vision and sense of duty, individual consideration, situational reward but were not significant in exceptional control by exception. Fourth, the impact of the types of leadership on learning immersion showed that vision and sense of duty, and situational reward, but individual consideration and exceptional control by exception were not significant.

• Journal of Korea Port Economic Association
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• v.27 no.1
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• pp.111-135
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• 2011

The purpose of this article is to understand the present situation of energy maritime logistics and to suggest a safe way for maritime transportation. In addition, this study is going to assess the risk of maritime transport of energy and propose alternatives in terms of strategy and policy. We examine the security of the Strait of Hormuz, near the east coast of Somalia, the Gulf of Aden and the Strait of Malacca where the Korean tankers pass through and discuss countermeasures responding to a variety of dangerous situations. This article also provides plans for stable supply of energy in case of Korea peninsula crisis and emphasizes the need of establishing cooperation with neighbor countries.

• International Area Studies Review
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• v.14 no.2
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• pp.229-248
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• 2010

This study is intended to empirically investigate determinants of the degree of standardization vs. adaptation in global marketing programs for Korea firms. Our study has two main focuses. First, our study takes a global perspective instead of a binational, i. e., home vs. foreign perspective. Second, we accommodated two conflicting veiws - contingency and resource-based views in explaining determinants of global marketing strategy. As such determinants, we considered global market dynamism and complexity from a contingency view and global marketing assets from a resource-based view. Surveys were conducted with 128 Korean firms engaged in global marketing. Our study found that Korean firms with global assets tend to engage in highly standardized global marketing programs. On the other hand, global market dynamism and complexity did not show statistically significant relationships with the degree of standardization vs. adaptation. The findings suggest that a resource-based view may be more powerful than a contingency view in explaining global marketing strategies of Korean firms.

• Journal of the military operations research society of Korea
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• v.33 no.2
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• pp.1-15
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• 2007

Aircraft operation doesn't consider the fact which can became obstacles. Forecasting, Preparing and Planning can make effective aircraft operation. This study is the find out the method of the effective Aircraft military power management. The force try to analysis the obstancles, aircraft operation ability and prepared military power. This study was analysis by ARENA 10.0. The obstacles consider to four category; weather, CBR warfare. aircraft accident and battle damage. And This study conduct the sensibility which can influence the aircraft operation.

• Journal of The Korean Association For Science Education
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• v.26 no.4
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• pp.475-491
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• 2006

In physics education, the research on students' conceptions has developed in the discussion on the nature and the difficulty of conceptual change. Recently, mental models have been a theoretical background in concrete arguments on "how students' conceptions are constructed or created." Mental models that integrate information in the presented problem and individual knowledge in their long-term memory have important information about not only expressed ideas but also in the thinking process behind the expressed ideas. The purpose of this study is to investigate the forming process and the characteristics of high school student's mental models about circular motion, and how they were changed by instruction. We used the think-aloud method based on the instrument for identifying student's mental models about circular motion, pretest of physics concept, mind map and interview for investigating student's characteristics. The results of the study showed that instructions based on the mental model theory facilitated scientific expressed model, but several factors that affected forming mental models like epistemological belief didn't change scientifically after 3 lessons.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.3
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• pp.113-126
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• 1998

This paper examines the influence of and in the process of collection building in public libraries. These events resulted in depriving library workers of their voluntary spirit. And these events have also become a main cause of ideological prejudices as reflected in collection building.

• Journal of Digital Convergence
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• v.12 no.3
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• pp.105-115
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• 2014

This paper aims to examine the mediating effects of psychological capital on the relationships between learning organization and innovative behavior. 310 sheets of questionnaires were gathered from the organizational members of the companies in 5 cities, including Seoul and Pohang and analysed using structural equation modelling technique. The results show followings: First, the human factor of learning organization has a significant influence to the innovative behavior and the psychological capital. Second, structural factor of learning organization has a significant influence to the psychological capital but does not have a significant influence to the innovative behavior. Third, the mediating effect of psychological capital has a significant partial effect between human factor of learning organization and innovative behavior, and full effect between structural factor of learning organization and innovative behavior. The results of this study implies that some guideline could be used in promoting learning organization and making implementing strategy.

• Korea journal of population studies
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• v.23 no.2
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• pp.5-37
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• 2000

In this paper we have reviewed major theories of international migration by three phases of migration : initiation, perpetuation, and adjustment. Through the review it is found that factors affecting the three phases are not mutually exclusive but interrelated, and argued that for a comprehensive understanding of the phenomena we need a theoretical guideline useful to locate all the important factors associated to the entire process of migration. Neoclassical economic theory which has played a leading role in migration research. fails to be such a guideline. since it is grounded on the unrealistic assumption of rationality and does not take into account for historical-structural factors, as neo-Marxian theorists have claimed. Two major Marxian theories, dual labor market theory and world system theory, have been successful to identify macro-structural factors that induce main flows of international migration, but do not so in exploring situational factors affecting the process of migration, especially social and cultural factors. Accordingly this study proposes that in order to grasp international migration process comprehensively we need to research the phenomena in view of action system theory, that is, to study migrants\` economic, political, social, and cultural situations inclusively.

• Proceedings of the Korean Operations and Management Science Society Conference
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• pp.195-199
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• 1996

본 연구의 목적은 다음과 같다. 첫째, 기업을 중심으로 환경, 조직, 프로세스 등의 기업 내적 외적 요인의 변화와 기업의 상황적 모델을 살펴보고 상황적 모델을 중심으로 기업의 신조직에 대해 조명해 본다. 둘째, 신 조직과 활동기준원가(ABC)를 이용하여 정보시스템 도입의 요건과 기준을 새롭게 정립한다. 셋째, 정보시스템을 구현하기 위한 구체적인 방법론을 모색한다.