• Journal of Korea Game Society
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• v.7 no.2
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• pp.1-10
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• 2007

Many game designers suggested that if players got many objective performance, they could have a fun experience while playing the MMORPG. Does a quantity of objective performance lead to player's fun experience in the MMORPG? According to the Equity Theory, the reason of players getting fun experience is not only that players get reasonable objective performances as many as efforts of theirs but also that amount of their objective performances were same as others. This study analysed that the equity of objective performances would have an effect on the player's fun experience. The results were that the equity of objective performances produced an effect on the players' behavioral intention, flow experience, and cognitive performance. Hence if game designers want that players are interested in the online game playing, they have to support the equity of objective performance to players.

• Journal of Navigation and Port Research
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• v.42 no.6
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• pp.371-377
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• 2018

Navigational equipment standardization mode is a function which is used to standardize key functions, screen display and operation method of major navigation equipment. This is aimed towards to quickly and accurately checking information relevant for safe navigation. Currently, the International Maritime Organization is working on the development of guidelines for the application of navigational equipment in the standardized mode to the task of NCSR Sub-Committee. This study was conducted to investigate users' opinions and preferences in the application of standardization modes and to reflect them in the development of guidelines. In addition, the test program was designed to investigate user preferences for ECDIS among the navigational equipment, such as the types of information and functions that are necessary or preferentially required to perform navigational duties, and the screen configuration. In the study, 333 preference surveys were conducted in 35 countries using a web - based test program. ECDIS users confirmed the content and screen layout of their preferred ECDIS information when conducting navigation duty. The results of the study are significant as they contribute to the development of effective guidelines by presenting user requirements to be considered in the standardization mode.

• Geophysics and Geophysical Exploration
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• v.26 no.3
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• pp.138-149
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• 2023

In geoscience and engineering the geological characteristics of sediment strata is crucial and possible if reliable borehole logging and seismic data are available. To investigate the characteristics of the shallow strata in the Korea Strait, laboratory sonic logs were obtained from deep borehole data and seismic section. In this study, we integrated and analyzed the sonic log data obtained from the drilling core (down to a depth of 200 m below the seabed) and multichannel seismic section. The correlation value was increased from 15% to 45% through time-depth conversion. An initial model of P-wave impedance was set, and the results were compared by performing model-based, band-limited, and sparse-spike inversions. The derived P-impedance distributions exhibited differences between sediment-dominant and unconsolidated layers. The P-impedance inversion process can be used as a framework for an integrated analysis of additional core logs and seismic data in the future. Furthermore, the derived P-impedance can be used to detect shallow gas-saturated regions or faults in the shallow sediment. As domestic deep drilling is being performed continuously for identifying the characteristics of carbon dioxide storage candidates and evaluating resources, the applicability of the integrated inversion will increase in the future.

• KIISE Transactions on Computing Practices
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• v.23 no.10
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• pp.579-587
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• 2017

Cyber Mission Impact Assessment is one of the essential tasks which many militaries and industrial major companies should perform to effectively achieve their mission. The unexpected damage to an organization's assets results in damage to the whole system's performance of the organizations. In order to minimize the damage, it is necessary to quantify the available capacity of the mission, which can be achieved only with the remaining assets, and to immediately prepare a new second best plan in a moment. We therefore need to estimate the exact cyber attack's impact to the mission when the unwanted damage occurs by modeling the relationship between the assets and the missions. In this paper, we propose a new model which deals with the dependencies between assets and missions for obtaining the exact impact of a cyber attack. The proposed model distinguishes task management from asset management for an efficient process, and it is implemented to be optimized using a vectorized operation for parallel processing and using a buffer to reduce the computation time.

• Journal of Distribution Research
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• v.15 no.2
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• pp.101-122
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• 2010

In this study, it is explored whether positive and negative emotions affected hedonic and utilitarian values experienced while shopping apparel in the Internet. In addition, the effect of hedonic and utilitarian shopping values on store approach behaviors was explored. For this study, Babin and Attaway's research model that was used for off-line shopping malls was adopted to investigate the relationships among research variables. Data obtained through experiments with 278 female college students were submitted for an analysis. Exploratory and confirmatory factor analysis and structural equation modeling with AMOS 6.0 were used to analyze data. Based on the model test, negative emotions negatively affected hedonic and utilitarian shopping value perception while positive emotions positively affected hedonic and utilitarian shopping value perception for the Internet apparel shopping site. Hedonic and utilitarian shopping values positively influenced attitude toward the Internet shopping site while only utilitarian shopping value affected revisiting Internet apparel shopping site. Managerial and academic implications were generated based on results.

• The Journal of the Korea Contents Association
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• v.15 no.4
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• pp.443-453
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• 2015

The purpose of this research is to investigate the influence of institution trust on customer-orientation of hotel practician. Comparison between two types of governance structure demonstrated that the relationship between institution trust and customer-orientation were significantly different each other. As hypothesized, influence of organization trust on customer-orientation was much stronger in privately owned organizations than that of public ownership organizations. In the test of mediating effect of job engagement between two variables were statistically significant Based on the results from SEM model, we can suggest that improvement of institution trust need to be emphasized through the rational introduction of customer-oriented system, establishing priority task system according to individual business criticality, admission and enhance of fault. Empirical evidences from structural equation model support the governance type positively influence the job attitude in service organizations.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.608-613
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• 2008

Web usability for e-commerce sites becomes a more important issue as e-commerce gains its popularity. As for fresh foods, consumers are especially sensitive to the quality of information during transaction process. Successful fresh food e-commerce sites, such as Wine. com and Tesco, identified regular usability testing as part of key success factors. This paper aims to identify processes for evaluating usability of fresh food e-commerce sites and provide recommendations to improve usability. The study aims to evaluate Web usability of selected Web sites using heuristic evaluation to provide objective Web usability analysis for each transaction process and think aloud method to understand how users actually evaluate the Web site.

• The Journal of Korean Academic Society of Nursing Education
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• v.18 no.2
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• pp.323-331
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• 2012

Purpose: Level of meta-cognition of students has been regarded as one of the crucial factors on web-based learning. This study aimed to describe interaction type in small group discussion of the nursing graduate students and to investigate learning consequences and interaction types in group discussion on meta-cognition level. Method: Twenty six graduate nursing students attending the class on-line at the K university in Seoul were included in the study. We measured their meta-cognition level and learning attitude. We also scored their individual and group reports as well as analyzed interaction type by reviewing the dialogue of the group discussion. Results: The participants showed low frequency of exploratory interaction and high frequency of integrative interaction in the cognitive interaction category. They showed frequent modification interaction in the meta-cognitive interaction category. Interestingly, the students with lower level of meta-cognition achieved significantly greater scores in the individual assignments. High functioning group consisting of the students with high meta-cognitive level produced greater group report. Conclusion: A new strategy is needed to encourage in-depth interaction in a group discussion of nursing students. Meta-cognitive level of the students should be considered to form a small group for discussion in order to improve group activities.

• Journal of Korean Tunnelling and Underground Space Association
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• v.5 no.2
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• pp.147-159
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• 2003

Since early in the 90's, as the need for construction of underground rock structures has been largely increased, the in-situ rock stress measurement has been widely carried out to provide the quantitative information on the initial stress state of test site at the design stage of underground rock structures. Among the diverse method developed for measuring rock stress, hydraulic fracturing method is most popularly used because it is applicable at pre-construction stage and has no limit in testing depth. In this paper a study on initial rock stress state at shallow depth of the plain gneiss region in the central part of Seoul was performed on the basis of the in-situ hydraulic fracturing stress measurement results from the 11 test boreholes. And overall characteristics of the initial stress field of the study area are discussed.

• The Journal of the Korea Contents Association
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• v.16 no.7
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• pp.575-586
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• 2016

The purpose of this study was to investigate the influential factors of organizational cynicism of nurses in hospitals, and to examine data contributing the effective organizational management and the organizational effectiveness. Data were collected from 320 nurses working in a hospital in 2005. A total of 295 questionnaires were analyzed by the SPSS WIN 21.0. The leadership, job interdependence, job stress, positive and negative affectivity had significant effect on the organizational cynicism of hospital nurses. Also, the organizational cynicism had significant mediating effects on job satisfaction and organization commitment, and organizational climate showed significant indirect effects on the job satisfaction and organizational commitment. In conclusion, hospital managers and nursing directors need to adopt following strategies; open communication, friendly feedback, trust among staff, co-operation between departments and intra-departments, sharing information, creating joyful organizational climate, adequate organizational supports, fair compensation, and favorable organizational culture.