• Korean Journal of Soil Science and Fertilizer
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• v.45 no.5
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• pp.676-682
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• 2012

The objectives of this study focused on measuring chlorophyll fluorescence related to drought stress comparing some parameters. Almost parameters were declined although they were not significant on the basis of mean values of fluorescence of total leaf area. While the ratio of fluorescence intensity variable chlorophyll ($F_V$) to fluorescence intensity maximal chlorophyll ($F_M$) was not changed, the effective quantum yield of photochemical energy conversion in photosystemII (${\Phi}PSII$) and chlorophyll fluorescence decrease ratio ($R_{fd}$) were slightly reduced, indicating inhibition of the electron transport from quinone bind protein A ($Q_A$) to quinone bind protein B ($Q_B$). Some parameters such as non-photochemical quenching rate ($NPQ_{_-LSS}$) and coefficients of non-photochemical quenching of variable fluorescence (qN) in mid-zone of leaf and near petiole zone leaf were significantly enhanced within 4 days after drought stress, which can be used as physiological stress parameters. Decrease in ${\Phi}PSII$ could was significantly measured in all leaf zones. In conclusion, three parametric evidences for chlorophyll fluorescence responses such as ${\Phi}PSII$, NPQ, and qN insinuated the possibility of photophysiological indices under drought stress.

• The Journal of the Korea Contents Association
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• v.18 no.12
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• pp.660-675
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• 2018

This study is designed to investigate how the perceived characteristics of the online video services affect the 'flow' as positive experience and satisfaction of users. For the study, we conducted a questionnaire survey on 289 people using YouTube, and then analyzed the relationships among variables using hierarchical regression analysis. As a result, it was confirmed that interactivity, newness of recommendation service, diversity of content, and entertainingness of contents all affect the lower level of flow experience. On the other hand, the accuracy of the recommendation service did not affect the flow experience, but positively affects the level of satisfaction. Finally, it is also confirmed that flow has a direct effect on user satisfaction, and mediates relationship between the characteristics of YouTube and satisfaction. The results of this study are helpful to understand user's perception and experience of online video platform service and suggest the discussion points to be considered by the industry to satisfy users.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.13 no.6
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• pp.89-101
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• 2018

This paper empirically analyzed whether or not professional college students' Protean career attitudes affect entrepreneurial intention through employability and entrepreneurship, and whether or not they have practical training experiences can make a difference in such influence. For this reason, a questionnaire survey was conducted on about 240 students at specialized universities in Seoul and the Gyeonggi province for one month beginning on June 1, 2018. Of the 220 collected questionnaires, 214 parts in total were selected for final analysis, except for the 6 parts of the answer sheet which were not sure if there was a missing value or not. The main findings are as follows. First, it has been confirmed that the professional career attitude of Protean has influenced employability and entrepreneurial intention, but has not directly influenced entrepreneurial intention. Secondly, it has been confirmed that the employability and entrepreneurship have have a positive influence on the entrepreneurial intention. Thirdly, it has been confirmed that employability and entrepreneurship play a role as a fully mediated role in the relationship between the attitude of the Protean career and the entrepreneurial intention. Fourthly, considering the characteristics of the vocational college, there is no difference in the influence of employability and entrepreneurship on the entrepreneurial intentions, but the influence of the protean career attitude on employability and entrepreneuriship was different depending on whether or not they had the practical training experiences. This study is to analyze the relationship between the protean career attitude and the entrepreneurial intention in the aspect of employment and entrepreneurial activation of young people.

• 한국벤처창업학회:학술대회논문집
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• 2018.11a
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• pp.201-213
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• 2018

This paper empirically analyzed whether or not professional college students' Protean career attitudes affect entrepreneurial intention through employability and entrepreneurship, and whether or not they have practical training experiences can make a difference in such influence. For this reason, a questionnaire survey was conducted on about 240 students at specialized universities in Seoul and the Gyeonggi province for one month beginning on June 1, 2018. Of the 220 collected questionnaires, 214 parts in total were selected for final analysis, except for the 6 parts of the answer sheet which were not sure if there was a missing value or not. The main findings are as follows. First, it has been confirmed that the professional career attitude of Protean has influenced employability and entrepreneurial intention, but has not directly influenced entrepreneurial intention. Secondly, it has been confirmed that the employability and entrepreneurship have have a positive influence on the entrepreneurial intention. Thirdly, it has been confirmed that employability and entrepreneurship play a role as a fully mediated role in the relationship between the attitude of the Protean career and the entrepreneurial intention. Fourthly, considering the characteristics of the vocational college, there is no difference in the influence of employability and entrepreneurship on the entrepreneurial intentions, but the influence of the protean career attitude on employability and entrepreneuriship was different depending on whether or not they had the practical training experiences. This study is to analyze the relationship between the protean career attitude and the entrepreneurial intention in the aspect of employment and entrepreneurial activation of young people.

• Journal of the Korean Geographical Society
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• v.49 no.2
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• pp.113-138
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• 2014

Despite the growing numbers of regional problems (e.g. conflicts between the state and localities, inter-local conflicts, etc.) associated with the state-led developmental projects, the Korean social sciences have been unable to offer satisfying explanations and solutions to the regional problems. This is mainly because the existing works, which have been taken captured by the assumptions of "methodological nationalism", significantly lack the socio-spatial understandings of the state actions and the relations between the state and localities, thereby seeing the issues of regional development mainly in terms of either the economic efficiency defined at the national scale, or the plan rationality of the national bureaucrats. With this problem orientation in mind, this paper aims to explore the ways in which the state and localities are interacting, conflicting and negotiating with one another through the mediation of the state-led developmental projects. Focusing on the developmental processes of Masan Export Processing Zone from the mid-1960s to the early 1970s, it examines the multi-scalar processes through which the state-led industrial complex developmental processes have been influenced by the complex and dynamic interactions among social forces and actors acting at diverse geographical scales (e.g. the global, national, local, urban, etc.). This analysis shows that the regional policies of the Korean developmental state were more heavily influenced by the interactions, contestations, and collaborations among social forces and actors, acting in and through the state, at various geographical scales, rather than by the economic and techno-bureaucratic rationality.

• Korean Journal of Culture and Social Issue
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• v.28 no.2
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• pp.163-186
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• 2022

The study was conducted to reveal the influence of variables causing post-traumatic growth and suggest ways to utilize it in the counseling and clinical field. Data from 208 youths in Korea were collected and analyzed using the SPSS 25.0 and AMOS 26,0 statistic programs. This study took the perspective that post-traumatic growth was affected by the balanced- time-perspective and social-connectedness and tried to examine the influence and relation of the two variables. A frequency-analysis was performed to identify the demographic characteristics and the trends of the variables, and a Pearson's -correlation analysis was conducted to examine the relations between variables. A hierarchical- regression- analysis was performed to examine the influence of the major variables, And path-analysis was carried out to verify the research model, and the indirect effect was confirmed by using the bootstrapping method. First, religion, among all demographic variables, showed a significant effect on the post-traumatic growth. Second, the balanced-time-perspective and social-connectedness had a significant effect on post-traumatic growth. Third, the balanced time perspective influenced social-connectedness and through this process, the path explaining how post traumatic growth occurs was revealed. This suggests that the both balanced time perspective and social connectedness are important for inducing post- traumatic growth, and the utility of the variables in the counseling and clinical field.

• Journal of Korean Society of Steel Construction
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• v.17 no.5 s.78
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• pp.593-604
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• 2005

In this paper, the parametric study on the local displacement and the local moment due to a concentrated load is performed for stiffened plates with open ribs and the orthotropic rigidity ratio of stiffened plates is selected as the parameter. For estimating the local behavior, stiffened plates loaded on the center of plates between the ribs were considered and for the global behavior, stiffened plates loaded on the rib at the center of plates were analyzed. The Analyzed results for the local behavior of stiffened plates show that the increasing ratio of the local moment according to rib sizes is constant regardless of rib spaces and the ratio of the local displacement to the global displacement can be expressed as a function of the rib space and the rigidity ratio. The application of functions to examples shows good accuracy in comparison with the local behavior of stiffened plates loaded on the center of plates and the application to the orthotropic analysis of stiffened plates improves accuracy. Therefore, using functions proposed in this study, the local behavior can easily be estimated from the global behavior of stiffened plates with open ribs.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.501-511
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• 2019

Messages to help people far away, such as International relief campaign, are heavily influenced by situational factors. In this light, the study examined whether the message characteristics (gain/loss framing) and the individual characteristics (previous attitude to helping activity) interact to affect the message attitude and behavioral intention. The study was conducted by an experiment involving 220 subjects. The analysis resulted in the significant interactions between gain/loss framing and pre-attitude by the same direction for message attitudes and behavioral intention. It was shown that gain framing worked more effectively for the relatively more friendly group towards helping activities than for the less friendly one. The same direction was shown in the loss framing, but its difference was smaller. The process of the interactions appeared as mediated by anticipated satisfaction. The practical and theoretical implications were discussed for proper planning of messages to help others.

• Journal of Korean Tunnelling and Underground Space Association
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• v.11 no.3
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• pp.255-264
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• 2009

This paper concerns the behavior of 2-Arch tunnel constructed under various conditions. A 2-Arch tunnel section adopted in a subway tunnel construction site is considered in this study. A calibrated 3D finite element model was adopted to conduct parametric studies on a variety of construction scenarios including lagged distance between left and right tunnels, overburden, and geological condition. The results of analyses were examined in terms of crown settlement, shotcrete lining stress, and load on center column in relation to the lagged distance, cover depth, and the ground condition. The results indicate that the shotcrete lining stress and the center pillar load are more influenced by the second tunnel excavation than the tunnel deformation. Also shown is that a greater lagged distance is required to minimize the interaction between two tunnels when the ground condition becomes weaker. Fundamental mechanisms of 2-arch tunnel were also discussed based on the results.

• Journal of Digital Convergence
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• v.14 no.9
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• pp.73-87
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• 2016

The purpose of this study is to investigate the cultural difference between eastern and western culture in the online community in view of Hofstede dimensions of national culture through social network analysis. And this study tries to interpret the cultural dimensions by using social network indexes. The results show every cultural dimension offered conflicting results except uncertainty avoidance. The eastern culture shows individualism, and low power distance compared to western culture in the online community. Moreover the communication speed of eastern culture is faster than western culture. But eastern culture shows high uncertainty avoidance in the online community similar to an offline culture. This results of this study show that because of certain differences between the offline and online culture, the typical framework we use to analyze offline culture should not be applied to analyze online culture. Therefore we believe that the most important contribution of this study should be related with the finding that we need very different approach to be able to correctly understand the prevalent culture in the online community than the one that we use in the offline community.