• Knowledge Management Research
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• v.24 no.3
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• pp.95-125
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• 2023

As the aviation industry has rapidly been grown, there are more factors for customers to consider when choosing an airline. In response, airlines are trying to increase customer value by providing high-quality services and differentiated experiential value. While early customer value research centered on utilitarian value, which is the trade-off between cost and benefit in terms of utility for products and services, the importance of experiential value has recently been emphasized. However, experiential value needs to be studied in a specific context that fully represents customer preferences because what constitutes customer value changes depending on the product or service context. In addition, customer value has an important influence on customers' decision-making, so it is necessary for airlines to accurately understand what constitutes customer value. In this study, we collected customer reviews and ratings from Skytrax, a website specializing in airlines, and utilized the BERTopic technique to derive factors of customer value. The results revealed nine factors that constitute customer value in airlines, and six of them are related to customer satisfaction. This study proposes a new methodology that enables a granular understanding of customer value and provides airlines with specific directions for improving service quality.

• The Journal of Bigdata
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• v.8 no.2
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• pp.73-82
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• 2023

With 78% of current fisheries workers being elderly, there's a pressing need to address labor shortages. Consequently, active research on smart aquaculture technologies, centered on object detection and tracking algorithms, is underway. These technologies allow for fish size analysis and behavior pattern forecasting, facilitating the development of real-time monitoring and automated systems. Our study utilized video data from cameras outside aquaculture facilities and implemented fish detection and tracking algorithms. We aimed to tackle high maintenance costs due to underwater conditions and camera corrosion from ammonia and pH levels. We evaluated the performance of a real-time system using YOLOv7 for fish detection and the SORT algorithm for movement tracking. YOLOv7 results demonstrated a trade-off between Recall and Precision, minimizing false detections from lighting, water currents, and shadows. Effective tracking was ascertained through re-identification. This research holds promise for enhancing smart aquaculture's operational efficiency and improving fishery facility management.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.66-79
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• 2016

A discussion has recently emerged over the increase of approvals of K-REITs, which is concluded on the basis of how to raise funds for business activity, fulfill the expected rate of return and maximize the management of managing investment funds. In addition, corporations need to acknowledge the necessity of the capital structure reflected in the current economic environment and decision-making processes. This research analyzed the characteristics by investment types and influence factors about the debt ratio of K-REITs. The data were collected from general management about business state, investment, and finance from 2002 to 2015 in K-REITs (except for the GFC period of 2007~2009). The results of the research demonstrated the high ratios of the largest shareholder characteristics, which are corporation, pension funds, mutual funds, banks, securities, insurance, and, recently, the increasing ratio of the largest shareholder and major stockholder. The investment of K-REITs is increasing the role of institutional investors that take a leading development of K-REITs. The behaviors of simultaneous investment of institutional investors were analyzed to show that they received higher interest rates than other financial institutions and ran in parallel with attraction and compensation. The results of the multiple regressions analysis, utilizing variables about debt ratio were as follows. The debt ratio showed a negative (-) relation that profitability is increasing, which matches the pecking order theory and trade off theory. On the other hand, investment opportunities (growth potential) showed a negative (-) relation and assets scale that indicated a positive (+) relation. The research results are reflected as follows. K-REITs focused on private equity REITs more than public offering REITs, and in the case of financing the capital of others, loan capital is operated under the guarantee of tangible assets (most of real estate) more than financing of the stock market. Further, after the GFC, the capital of others was actively utilized in K-REITs business, and the debt ratio showed that the determinant factors by the ratio and characteristics of the largest shareholder and investment products.

• International Commerce and Information Review
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• v.17 no.2
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• pp.151-171
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• 2015

Recent companies have introduced AEO (Authorized Economic Operator) system for a smooth and fast customs clearance to meet the conflicting objectives of trade security and trade facilitation in international trades. The present study was to verify 150 companies that have acquired Korea's AEO certification and its impact from the government and financial support, the effects of AEO certification post management, and the AEO system's utilization satisfaction to seek ways to further activate the AEO system. The research hypothesis and model was derived on the basis of existing theory and empirical research, and obtain the following results. First, government policy supporting the AEO system after certification post management showed positive (+) effect for the AEO satisfaction. Second, AEO certification post management showed positive (+) effect for AEO satisfaction. Third, government funded factor showed negative (-) effect for AEO certification post management. The present study is differentiated from previous research information. The study evaluated the company's satisfaction with the AEO certification, and the government support has empirically evaluated the relationship between the post management and the satisfaction. Academic contribution was conducted for Korea's AEO system's post follow-up research while a practical contribution suggested the direction for our country's organization to take advantage of the AEO system.

• Korean Journal of Social Welfare
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• v.64 no.2
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• pp.133-158
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• 2012

In the modern society, a growth in the non-profit sector and a decrease in the government budget on social welfare result in a greater need of individual giving and volunteering. Therefore, in order to manage non-profit organizations effectively, it is necessary to encourage citizen participation in giving and volunteering through identifying various factors affecting giving and volunteering. In order to identify what factors are affecting participation in giving and volunteering and whether the relationship between giving and volunteering is multiplicative or compensatory, this study uses multinomial logistic regression analysis by categorizing four groups based on the participation types of giving and volunteering. The research findings confirmed that common factors such as religion and satisfaction with leisure time were still significant, and specific factors were also found among factors affecting participation in giving and volunteering. Especially, this study identified that factors affecting giving and volunteering differ according to household income, education level, employment status, gender and social relationship satisfaction. The findings confirmed that giving and volunteering are compensatory behaviors. Finally, the implications of this study were discussed. A differential strategy for giving and volunteering is needed to encourage citizen participation in non-profit organizations.

• KSBB Journal
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• v.10 no.1
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• pp.1-8
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• 1995

A lot of water soluble proteins and lipids are released from minced mackerel meat and lost into the washing waste during the leaching process of Kamaboko or surimi manufacture. The removed proteins and lipids are not only an edible things but also a big burden for treating the wastewater. In order to recover the proteins from the effluent and to use as food stuff, the "pH-shifting" treatment, a modified isoelectric point precipitation method, was tried. This method is based on a myogen-aggregation phenomenon, which occurs when a solution of sarcoplasmic proteins is acidified or alkalified beyond the critical pH zone of 2∼3 or 12∼13 respectively and then neutralized. The maximum amount of precipitation was obtained by shifting the pH of the wastewater from original pH to isoelectric point (pH 4) or alkali pH 12 and then changing to neutral pH. The precipitates were easily collected by filteration or centrifuging at 10,000rpm. The oils which were only floating in the washing wastewater are easily recovered by seperating with oil separator after pouring. The recovered proteins were slightly denaturated during this pH shifting precipitation process, while the composition of amino acids was good balance as a food.

• Journal of Veterinary Clinics
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• v.27 no.6
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• pp.631-634
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• 2010

This study was conducted to survey Dirofilaria (D.) immitis antigen, and Anaplasma (A.) phagocytophilum, Borrelia (B.) burgdorferi, and Ehrlichia (E.) canis antibodies among clinically healthy dogs in the Daejeon city and Kangwon province. Whole blood samples were collected from two hundred and fifty two dogs (127 females and 125 males, 147 outdoors and 105 indoors), and they were tested by using ELISA kit (SNAP 4Dx, IDEXX Laboratories, USA). Chi-squared analysis showed that A. phagocytophilum of female dogs in outdoors group was significantly higher prevalence than that of female dogs in indoors group (p < 0.05). In addition, infection rate of A. phagocytophilum of over 7 year-old-dogs in outdoors group revealed significantly higher prevalence than that of indoors group (p < 0.01). In E. canis, the under 4 year-old-dogs (p < 0.05), 4~7 year-old-dogs (p < 0.05) and over 7 year-old-dogs (p < 0.01) in outdoor group showed significantly higher prevalence than that of indoors group, respectively. In conclusion, this study is the large scale survey of canine D. immitis antigen, A. phagocytophilum, B. burgdorferi, and E. canis antibodies in the Daejeon city and Kangwon province, and it provides an useful reference for clinicians.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.519-527
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• 2011

The e-Learning program is a multimedia data program consisting of texts, images, animation, audio and video. The development of an e-Learning program requires time and is a complex process, requiring cooperation and open-communication between all parties involved, particularly in the event of a problem. This study will analyze the e-Learning contents development process from the Social Negotiation Perspective. An appropriate process for the development of the program and effective decision-making guidelines for those parties involved will be recommended. Participants' viewpoints regarding program development and guidelines were studied qualitatively, while the evaluation of developed content employed both qualitative and quantitative research. The study found the following results. First, the development of an e-Learning program requires a clear goal and purpose. Second, the target group must be clearly identified. Third, all parties involved must share in the development process and its outcomes. Fourth, the party requesting the program must allocate the appropriate time and budget for the development group. Finally, the project requires a strong, capable leadership for effective decision-making.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.9
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• pp.3296-3303
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• 2010

This study attempted to identify the strategic factors of conflict management in making decisions of family travel by age focusing on the different conflicts occurred in the family travel currently in Korea. by doing this, it tried to provide the basic data that can draw out constant participation, higher involvement and commitment by identifying the strategies for conflict management centering around not only tourism studies of tourist psychology and behavior but also the strategic variables of conflict management in terms of the promotion of tourism industry. To examine the result of this study, first, it was found that in all age groups, strategies of compromise and moderation strategy to meet the needs of surrounding people and the person him/herself were used as a strategic plan for conflict management between decision-makers and conflicting groups. Second, it was analyzed that when a conflict is caused, from order to negotiation strategies; from authority to democratic strategy, they turned out to make efforts to solve the conflicts occurred during family travel by collecting the opinions of the surrounding people; tune the opinions; and make decisions by majority. Lastly, it was found that they turned out to make efforts to ease the conflicts caused during family travel through active problem-solving regarding internal/interpersonal/structural restriction factors.

• Journal of the Korean Institute of Landscape Architecture
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• v.42 no.1
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• pp.41-49
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• 2014

This study spatially assesses the impact of trees on residential rooftop solar energy potential using urban three-dimensional models derived from Light Detection and Ranging(LiDAR) data in San Francisco, California. In recent years on-site solar energy generation in cities has become an essential agenda in municipal climate action plans. However, it can be limited by neighboring environments such as shade from topography, buildings and trees. Of all these effects, the impact of trees on rooftop photovoltaics(PVs) requires careful attention because improper situation of solar panels without considering trees can result in inefficient solar energy generation, tree removal, and/or increasing building energy demand and urban heat island effect. Using ArcMap 9.3.1, we calculated the incoming annual solar radiation on individual rooftops in San Francisco and the reduced insolation affected by trees. Furthermore, we performed a multiple regression analysis to see what attributes of trees in a neighborhood(tree density, tree heights, and the variance of tree heights) affect rooftop insolation. The result shows that annual total residential rooftops insolation in San Francisco is 18,326,671 MWh and annual total light-loss reduction caused by trees is 326,406 MWh, which is about 1.78%. The annual insolation shows a wide range of values from $34.4kWh/m^2/year$ to $1,348.4kWh/m^2/year$. The result spatially maps the locations that show the various levels of impact from trees. The result from multiple regression shows that tree density, average tree heights and the variation of tree heights in a neighborhood have statistically significant effects on the rooftop solar potential. The results can be linked to municipal energy planning in order to manage potential conflicts as cities with low to medium population density begin implementing on-site solar energy generation. Rooftop solar energy generation makes the best contribution towards achieving sustainability when PVs are optimally located while pursuing the preservation of urban trees.