• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.2
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• pp.735-744
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• 2014

In this study, emotional intelligence which is defined as knowing yourself and other people's emotions and the ability to use regulation was judged as an important factor for the service quality implementation of aircraft crew members perform to work in special circumstances. And the purpose of this study is how emotional Intelligence affects job satisfaction and organizational loyalty. So we analyze the emotional intelligence of the K domestic airline crew in this study. This study showed that emotional intelligence affect high quality of service to perform the work well and contribute to job satisfaction. And job satisfaction has a positive impact on organizational loyalty also. Therefore, the ability of airlines to improve service quality as well as performing work also for the emotional intelligence to increase satisfaction and loyalty unplug staffs and it will require ongoing sensitivity training.

• Journal of Food Hygiene and Safety
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• v.1 no.2
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• pp.121-131
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• 1986

Four types of restaurants in Seoul city area were aSsessed in terms of the sanitary conditions and practices, and the microbiological quality. Sanitary check-lists were developed to evaluate the sanitary condition of sampled restaurants. Subjective samples were randomly selected based on the distribution factors of areas, types, and sizes. Microbiological tests on foods, equipments, and utensils were done according to standard procedures and included total plate count and coli forms. Singnificant differences among types or sizes were determined by using one-way analysis of variance. Correlation coefficients were calculated to determine significant relationships between sanitary scores and microbiological counts. The results of the study are summarized as follows: 1) Sanitary condition of kitchen and dining areas as well as the sanitary practices of employees were evaluated as the unsatisfactory state with potentially hazardous practices observed. 2) The microbiological quality of food items with high cooking temperature was in good condition, but most food items showed high levels of microbiological counts mainly due to the improper food handling practices of employees. 3) The sanitary conditions of equipment and utensils which were used at preparation and cooking phases, and food containers which were used at the serving phase, were crucial. Serveal guidelines were suggested for the improvement of the working environment as well as the food Quality.

• Journal of Advanced Navigation Technology
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• v.22 no.4
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• pp.288-294
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• 2018

The entertainment system of the aircraft has changed its paradigm in the form of using passenger electronic devices instead of using a fixed monitor. This has simplified the on-board equipment while the risk of safety has increased with the electric charging of portable electronic devices. Unlike personal portable electronic devices that do not have a transmission function, the use of Wi-Fi enabled electronic devices(T-PED) is allowed and the battery is required to be charged in the cabin. In this study, we used the NASA Aviation Safety Reporting System to investigate the effects of changes in wireless environment and entertainment service. Based on this, we analyzed the risks of personal electronic devices by sharing event occurrence cases caused by in-flight electronic equipment or passenger portable electronic devices(especially smart phones) from the viewpoint of aircraft safety management. This analysis includes identification of potential hazards and risk assessment, and finally the strategies for risk mitigation for safe use of portable electronic devices are suggested.

• Journal of the Korean Society for Railway
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• v.18 no.6
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• pp.513-521
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• 2015

When a GTX travels through a deep-level underground tunnel at a speed of 180km/h, ear-discomfort in passengers due to the pressure wave generated could be an issue due to the small cross-sectional area. Therefore, appropriate pressure-tightness values for GTX trains must be secured as a countermeasure. In this paper, a 1D numerical analysis was conducted to determine the pressure-tightness coefficient which allows a pressure change meet the criteria. The pressure transients in a tunnel and in a passenger car are predicted considering an A-line underground tunnel with a length of 37km and its operation schedule. The required pressure-tightness of the car is predicted to be three seconds and 6 seconds respectively for a single track and a double- track tunnel to prevent aural discomfort in passengers. The result of this study are expected to serve as useful information to those involved in the development of various solutions to improve air-tightness of GTX passenger cars.

• Journal of Environmental Health Sciences
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• v.45 no.2
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• pp.186-191
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• 2019

Objectives: Subway is one of the most common transportation modes in Seoul, Korea. The objectives of this study were to determine characteristics of in-cabin $PM_{2.5}$ concentration in Seoul Metro Line Number 2 and to identify factors of the $PM_{2.5}$ concentration. Methods: In-cabin $PM_{2.5}$ concentrations in Seoul Metro Line Number 2 were measured using real-time monitors and the factors affecting $PM_{2.5}$ concentration in cabin were observed. Linear regression analysis of in-cabin $PM_{2.5}$ concentration and indoor/outdoor (I/O) ratio were performed. Results: In-cabin $PM_{2.5}$ concentration was associated with the in-cabin $PM_{2.5}$ concentration in previous station. In-cabin $PM_{2.5}$ concentration was correlated with ambient $PM_{2.5}$ concentration and associated with underground station with control of the in-cabin $PM_{2.5}$ concentration in previous station. I/O ratio increased as the number of passengers increased and when passing through the underground station with control of I/O ratio in previous station. Conclusion: In-cabin $PM_{2.5}$ concentration was affected by ambient $PM_{2.5}$ concentration. Therefore, management of in-cabin $PM_{2.5}$ concentrations should be based on outdoor air quality.

• Journal of Korean Society for Quality Management
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• v.46 no.4
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• pp.939-958
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• 2018

Purpose: The purpose of this study was to propose useful suggestions by analyzing causal effect relationship between quality of followership, perceived style of leadership, job satisfaction and team commitment in the aviation industry. Methods: For the analysis of this study, a survey was conducted on local flight attendant. A total of 364 surveys were collected and 336 effective samples were used for analysis. And the collected data were analyzed using Structural Equation Modeling. Results: The results of this study were as follows : First, In the relationship between quality of followership and perceived leadership styles, independent thinking has a positive effect on all six sub-factors of transformational and transactional leadership and active engagement has negative influence on all six sub-factors of transformational and transactional leadership. Inaddition As a result of total and direct and indirect effects, Idealized Influence of perceived leadership style indirectly influences between Quality of Followership and job satisfaction, Idealized Influence, Inspirational Motivation, Intellectual Stimulation, Individualized Consideration, Contingent Reward of perceived leadership style have been shown to have indirect effects on team Commitment Conclusion: Based on the characteristics of followers and the type of leadership, it is necessary to develop ways to develop job satisfaction and team commitment of airline crews. In addition, flight attendant act as leaders and followers of each other depending on their work characteristics. Therefore, it is necessary to understand the relationship between leadership and followership based on the results of this study.

• Journal of odor and indoor environment
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• v.17 no.4
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• pp.346-354
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• 2018

In this study, the condition of the hazardous materials in the bus was monitored according to the ventilation mode of the air conditioning system during bus service. The bus was surveyed using the indoor air quality measurement method of public transportation vehicles within one year of delivery. We evaluate the $CO_2$ and $PM_{10}$, which are the controlled parameters in buses by the Ministry of Environment, and VOCs and HCHO, the non-controlled parameters. The $PM_{10}$ concentration increased due to outdoor air intake; however the $CO_2$ concentration was found to decrease. In addition, the concentration of VOCs and HCHO was found to decrease due to the forced ventilation system and the outdoor air intake. These results show that the concentration of the other materials except $PM_{10}$ can be changed due to the outside air concentration and forced ventilation system. Therefore, through indoor air quality characteristics of the bus according to air condition system are intended to be used as the basis of an operation manual.

• Journal of Korean Society for Quality Management
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• v.50 no.3
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• pp.441-457
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• 2022

Purpose: The purpose of this study is to analyze the effect of self-leadership on self-efficacy and customer orientation and to verify whether there is a mediating effect of self-efficy on the relationship between self-leadership and customer orientation. Methods: To verify these research problems, the subjects of this study were a total of 300 Korean cabin crew members working for domestic and foreign airlines who received distributed questionnaires and 247 copies wee analysed using the SPSS 20.0 program. Results: First, it can be seen that the self-leadership of airline cabin crew has a significant positive (+) effect on self-efficacy, indicating that self-leadership has a positive effect on the self-efficacy of the members of the organization. Second, it was found that self-efficacy had a positive (+) effect on the customer orientation of airline cabin crew, and it was analyzed that self-efficacy played a partial mediating role in the relationship between self-leadership and customer orientation. Third, it was found that self-leadership had a positive (+) effect on customer orientation, and it was proved that behavior-oriented strategy, constructive accident pattern, and natural compensation strategy, which are three sub-factors of self-leadership of cabin crew, have an influence on customer orientation. Conclusion: based on these findings, the theoretical and practical implications of this study and directions for future research were presented.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.35-40
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• 2021

People counting data is crucial for most business owners, since they can derive meaningful information about customers movement within their businesses. For example, owners of the supermarkets can increase or decrease the number of checkouts counters depending on number of occupants. Also, it has many applications in smart buildings, too. Where it can be used as a smart controller to control heating and cooling systems depending on a number of occupants in each room. There are advanced technologies like camera-based people counting system, which can give more accurate counting result. But they are expensive, hard to deploy and privacy invasive. In this paper, we propose a method and a hardware sensor for counting people passing through a passage or an entrance using IR Infrared sensors. Proposed sensor operates at low voltage, so low power consumption ensure long duration on batteries. Moreover, we propose a new method that distinguishes human body and other objects. Proposed method is inexpensive, easy to install and most importantly, it is real-time. The evaluation of our proposed method showed that when counting people passing one by one without overlapping, recall was 96% and when people carrying handbag like objects, the precision was 88%. Our proposed method outperforms IR Infrared based people counting systems in term of counting accuracy.

• Journal of the Korea Society of Computer and Information
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• v.29 no.6
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• pp.201-209
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• 2024

The COVID-19 pandemic has significantly impacted the aviation industry, leading to worldwide changes in travel restrictions and security measures. This study analyzes 59,818 reviews of 147 airlines from the SKYTRAX website between 2016 and 2023 to understand the changes in airline service satisfaction before and after the pandemic. Using sentiment analysis, the study compares overall satisfaction, review sentiment, and attributes influencing satisfaction. The results show a statistically significant (p<0.001) decrease in overall satisfaction post-COVID-19, with reduced positive sentiment and increased negative sentiment for all airline selection attributes, except cabin and in-flight services. Flight operation services had the most significant impact on overall satisfaction during both periods. This quantitative analysis of global major airlines' satisfaction attributes before and after COVID-19 contributes to enhancing future service satisfaction in the airline industry.