• 사회경제평론
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• v.29 no.1
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• pp.71-98
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• 2016

This study reveals the followings in the Tugan's business cycle thoery. First, Tugan tried to construct a business cycle theory based on his market theory. But Tugan' theory is lack of logical consistency. Second, Tugan's critics as well as defenders did not understand his theoretical error. Underconsumption theorists did not evaluate Tugan's periodical crisis theory while only criticizing Tugan's crisis theory neglected a consumption. Bauer developed Tugan's periodical crisis by using the reproduction scheme including a hoarded money. Hilferding only constructed a theory of crisis properly criticizing Tugan's crisis theory on the basis of Marx's concept of crisis.

• Korean Journal of Childcare and Education
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• v.8 no.5
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• pp.179-202
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• 2012

This study examined the relationship among children's theory of mind, social skills, and emotional intelligence. A total of 76 five-year old children in the Seoul area participated in this study. Children were tested on three different type of theory of mind tasks and teachers rated their children's emotional intelligence and social competency. SPSS 18, t-test, correlation analysis, and step-wise of multilateral regression were performed for data collection. The results were as follows: First, 40.8% of participants passed the task of theory of mind. There were significant differences in total score of theory of mind, social competence skills, and emotional intelligence between successors and failures. Second, by gender, there were significant differences in total score of theory of mind, social competence skills, and emotional intelligence. Third, there was a relationship between theory of mind and social competence skills, social competence skills and emotional intelligence, and theory of mind and emotional intelligence.

• Journal of Service Research and Studies
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• v.10 no.2
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• pp.77-89
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• 2020

This study analyzed the effect of Servant Leadership on leader trust and job engagement for the lower-level leader in airline crew occupations with the aim of identifying the possibility of establishing the theoretical framework of Servant Leadership in the service industry. As a result of the regression analysis, it was found that the social learning dimension of Servant Leadership has greater influence than the social exchange dimension on the leader trust, while the influence on job engagement is the opposite. The results of this analysis can be interpreted that trying to learn the words and actions of the Servant Leader is more effective in further consolidating the trust of the subordinates in the leader. On the other hand, the Servant Leader's words and actions for social exchange are inferred to have more influence on the job engagement. This study is targeted at air transport services, exposing limitations to the generalization of research results. Throughout leadership research and organizational research, including Servant leadership, further studies applying the social learning theory and social exchange theory presented in this paper are expected to produce theoretical results that will lead to the emergence of a new framework for research analysis.

• Journal of the Korean Society of Clothing and Textiles
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• v.28 no.12 s.138
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• pp.1545-1553
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• 2004

This study assumes a bidimensional model of acculturation theory in order to understand the acculturation patterns of Korean-Americans and their fashion and shopping behavior. Bidimensional models of acculturation suggest that acculturating individuals may possess the components of both the heritage culture and the new, host culture. A combination of email and paper and pencil surveys was conducted with a convenience sample of Korean-Americans who are living in Seattle and vicinity area (n=108). The questionnaire included questions related to the respondents' and their parents' demographic information, the respondents perceived relationship with their parents, self-reported ethnic identification, ethnicity-related behaviors/attitudes, clothing involvement, shopping motivations, and fashion reference groups. The results support the bidimensional models of acculturation process as opposed to the linear model. Three different groups among Korean-Americans based on their ethnic identification pattern were found: a group with dominant Korean identity(Segregation group), a group with dominant American identity(Assimilation group), and a group with dual identity(Integration group). According to the results of MANOVA and subsequent Duncan and Scheffe tests, the Integration group showed distinct characteristics from Segregation group or Assimilation group, in terms of their ethnicity-related behaviors/attitudes, clothing involvement, shopping motivations, and fashion reference group influence.

• The Journal of the Korea Contents Association
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• v.10 no.8
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• pp.147-158
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• 2010

The Soviet Silent Films in the 1920s, produced a brilliant prosperity in the history of world films in the cultural and artistic aspects. Among them, Dziga Vertov was a film theorists and a practitioner along with Sergei M. Einstein played a pivotal role in the contemporary soviet films at the time. But the film theories of Vetro is incorrectly recognized or specialized compared to the theories of Eisenstein. But Deleuze has stated that the short in the movie of Vertov is able to deliver a meaning and an impact and he has emphasized that a short can be significant by itself by focusing on the 'truth' which a documentary must have. His film theories are based on futurism and constructivism and use the 'kino-eye' method and 'Interval' theory to summarize and organize his movies into 'movie-truth' principal and 'life as itself' concept. Deleuze the purpose of this research is to analyze with the Vertov core of film theory and every theory of kino eye as the foundation and by comparing the Montage Theory of Sergei Eisenstein and applying Deleuze's Image Theory. Furthermore, it can be insufficient to discuss the film commercial achievements of Vertov as a result of inadequacy of previous research but it will further study his innovative methods and depth of his theories in his representation form in the documentary films.

• Korean Journal of Logic
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• v.16 no.3
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• pp.347-380
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• 2013

In this paper I will try to show how Wittgenstein criticized Frege's theory of meaning. Frege's theory of meaning can be compressed as sense-reference theory. Frege distinguishes between sense and reference on all the linguistic expressions. In particular, he regards that a sentence has sense and reference. This distinction was raised from, so to speak, the problem of identity sentences. Wittgenstein's "fundamental thought" of Tractatus Logico-Philosophicus is the key of his direct criticism of Frege's sense-reference theory. That is, it is an attack on Frege's thought that the reference of a sentence is a truth value and truth values are "objects themselves" (in Frege's meaning). According to Wittgenstein, such an object does not exist and according to his picture theory, the function of a name and that of a proposition are fundamentally different. By the way, Frege can reply justly to this criticism that it is insufficient. In short, Frege's 'sense' and 'reference' etc, are the technical terms. Hence Wittgenstein's decisive criticism of Frege's theory consists in accusing his theory of logical flaws. There is an another route to the sense and reference of a sentence which Frege introduces. In discourses of judgement stroke and content stroke in his Begriffsshrift and in those of horizontal stroke since his "Function and Concept", Frege deals with the sense and reference of a sentence. Wittgenstein criticize that the sense of a complex sentence such as ~p would by no means be determined by Frege's determination.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.39 no.7
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• pp.645-652
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• 2015

In this study, a method for determining Ramberg-Osgood constants for leak-before-break evaluation was investigated. The Ramberg-Osgood constants were calculated for SA312, TP316, and SA-508 Gr.1a in an operating temperature of $316^{\circ}C$. Incremental plasticity, using stress-strain data obtained from experiment, and deformation plasticity, using the Ramberg-Osgood constants, were considered in a finite element analysis. Using incremental plasticity and deformation plasticity, J-integrals and crack opening displacement values were calculated and compared. By comparing the results of incremental plasticity and deformation plasticity, a suitable method for determining Ramberg-Osgood constants for leak-before-break evaluation was confirmed.

• Nuclear Engineering and Technology
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• v.26 no.2
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• pp.212-224
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• 1994

A numerical method has been developed for studying the dynamics of a flexible cylinder in a coaxial cylindrical duct, immersed in inviscid flow. The unsteady inviscid fluid-dynamic force acting on the oscillating cylinder has been estimated more rigorously by means of a spectral collocation method without simplification of governing equations. This numerical approach is applicable to the system haying wider annular gap and/or shorter length of cylinder as compared to existing potential theory. The governing equation of the unsteady flow was obtained from Laplace equation. The equation of cylinder motion coupled with the fluid motion was discretized by Galerkin's method, from which the dynamic behaviour of the system has been evaluated. The effect of the length of the cylinder and the annular gap on the critical flour velocity, where the system loses stability by buckling, was investigated. To validate the numerical method, the potential flow theory developed by Hobson based on thin film approximation has been improved. Typical results of the present numerical theory on the dynamics and stability of the system are compared with those of available existing theory and the present approximate results. Good agreement was found between the results. It was also found that a nondimensional critical flow velocity becomes larger as increasing the annular gap and decreasing the length of cylinder.

• Journal of Korean Library and Information Science Society
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• v.54 no.1
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• pp.167-190
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• 2023

This study is a literature study that analyzed the research data curation models using activity theory as a theoretical framework. Based on the factors of the activity used in the activity theory, this study analyzed various research data curation models, as well as issues that needed discussion in the library field in carrying out research data curation activities. And based on this, a new research data curation conceptual model was proposed. This study analyzed how the five previously proposed digital curation lifecycle models are configured, and analyzed the actions presented sporadically in each model. A new research data curation conceptual model was proposed by analyzing factors, extracting common factors and integrating them into a new model. In addition, six issues to be considered in carrying out research data curation activities in libraries and repositories were analyzed and discussed. The research data curation conceptual model proposed in this study consists of a total of 10 steps, and it contains practical issues and contradictions to consider at each stage of activity.

• Journal of Korean Tunnelling and Underground Space Association
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• v.6 no.2
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• pp.161-169
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• 2004

In this study, a similarity rule is thoroughly discussed for tunnelling model tests which can simulate actual ground conditions. Based on this prior consideration, theoretical works are performed to simulate a real ground condition into a gravitational field with a similarity. A process is arranged to determine a lining condition in laboratory tests for a sandy ground tunnel.