• Journal of the Korean Data Analysis Society
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• v.20 no.6
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• pp.3117-3126
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• 2018

The operating system update is a basic step to maintain a safe internet use environment. This study analyzed whether the implementation of the operating system update was related to gender and age group during the violation accident prevention act in relation to information protection on the internet, and tried to verify the validity of these factors by analyzing the influence of gender and age group. In this study, logistic regression analysis was conducted based on the information security survey data surveyed by the Korea Internet & Security Agency in 2016. As a result, gender and age were surveyed as factors related to the implementation of operating system updates. As a result of analyzing the impact on the implementation of operating system updates by gender, it is estimated that the odds are 0.419 times higher for women than for men. According to the analysis of the operating system update by age group based on the 50s, which is a vulnerable group of information, the result is that the odds are 13.266 times higher in the 20s than the 50s.

• Journal of the Korean Wood Science and Technology
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• v.49 no.6
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• pp.643-657
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• 2021

In order to establish a strategy for revitalizing wood culture, a survey was conducted on the level of public awareness of wood culture and the experience of wood cultural resources by type. According to the survey, 31.4% of respondents had the images of cultural heritage such as palaces, temples, Hanoks, and cultural assets for wood cultural resources. The main reasons for having no image of wood cultural resources were the ambiguous concept and lack of interest in wood cultural resources. The importance of wood cultural resources classified into seven categories was in the order of cultural heritage, architecture of wood, cultural facilities, cultural festivals, wood products, cultural education, cultural contents. In the survey on the necessity and sufficiency of information on wood cultural resources, 46.7% of respondents needed more information to experience of wood cultural resources, while 64.8% of them had lacked information about wood cultural resources. More than half of the respondents wanted to experience of wood culture within next year, but about 20% of respondents participated in seven kinds of wood cultural resources, except wood products used in daily life. Based on these results, a systematic strategy should be developed to expand the opportunity for the public to experience of wood cultural resources and to promote them to public.

• Journal of Broadcast Engineering
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• v.26 no.5
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• pp.500-507
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• 2021

The virtual reality industry has an opportunity to take another leap forward with the surge in demand for non-face-to-face content and interest in the metaverse after Covid-19. Therefore, in order to popularize virtual reality content along with this trend, high-quality content production and storytelling research suitable for the characteristics of virtual reality should be continuously conducted. In order for content to which virtual reality characteristics are applied to be effectively produced through user feedback, a quantitative index that can evaluate the content is needed. In this study, the process of viewing virtual reality contents was analyzed and head movement was set as a quantitative indicator. Afterwards, the experimenter watched five animations and analyzed the correlation between recorded head movement information and immersion. As a result of the analysis, high immersion was shown when the head movement speed was relatively slow, and it was found that the head movement speed can be used significantly as an index indicating the degree of content immersion. The result derived in this way can be used as a quantitative indicator that can verify the validity of the storytelling method applied after the prototype is produced when the creator creates virtual reality content. This method can improve the quality of content by quickly identifying the problems of the proposed storytelling method and suggesting a better method. This study aims to contribute to the production of high-quality virtual reality content and the popularization of virtual reality content as a basic research to analyze immersion based on the quantitative indicator of head movement speed.

• The Korean Journal of Archival Studies
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• no.62
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• pp.225-258
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• 2019

Since the opening of Joseon in 1876, the photographic records of the late Joseon Dynasty and the period of the Korean Empire exist more than expected, considering the technological level and the social situations at that time. Photographs related to Korea can be distributed in various forms, such as illustrations of books printed to introduce Korea to Western society, plates of graphic journalism like newspapers or magazines, vintage prints, photo-postcards, stereo-photographs, card-type photographs, and lantern slides. There are still a great deal left in various archives of the Europe, America, Japan and Korea. According to related researchers, Korean-related photographs taken between 1863 and 1910, since Koreans were first photographed, were at least 3,000 to 4,000 cuts and the photo postcards issued was 25,000. It is said that most of them exist. This paper categorizes two ways of producing and distributing photographic records related to Korea, which were early modern times. The subjects of the photographs are clearly Korea or Koreans, but most of the producers of these photographs were Westerners and Japanese, who were imperial servants of imperialism. In the case of photography, there is a great possibility of distortion of the facts depending on the needs or perspectives of the producers. In order to correct the distortion, not only the contents of the photograph but also the intention of the producer, the production and the communication status should be grasped. This is because the problem of reading photograph records accurately and fairly in an age where there is no real experience is the cornerstone for understanding modern Korea correctly and broadly studying the Modern History of Korea.

• The Korean Journal of Franchise Management
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• v.10 no.2
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• pp.49-58
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• 2019

Purpose - As the growth potential of the cultural contents industry steadily grows, the cinemas industry is growing fast especially due to popularity and commerciality. The recent in the cinemas industry is evolving on multiplex cinemas that combine cultural facilities such as theaters, restaurants, and shopping centers. Due to the rapid growth of multiplex cinemas, many researchers have studied the characteristics of visiting customers in Korea. Among them, selection attribute of multiplex cinemas, including the service quality and physical environment, is important because it may examines the cause of customer 's behavior. Thus, this research focuses on the effects of the selection attributes of the multiplex cinemas on customer satisfaction and their loyalty. This research suggests the guidelines for how cinemas should manage their customers and build their customers satisfaction and loyalty that improve business performance. Research design, data, and methodology - This study tests the structural relationship between selection attributes of multiplex cinemas, customer satisfaction, and loyalty. selection attributes of multiplex cinemas divide into five sub-dimensions such as movies facility quality, services, cleanliness, accessibility, and snack bars quality. In order to examine the purposes of this research, research model and hypotheses were developed. All constructs were measured with multiple items developed and tested in the previous studies. The data were collected from 100 students in their 10-20s and were analyzed using SPSS 22.0, SmartPLS 3.0 and fsQCA program. Result - The findings of this research are as follows. First, all selection attributes except cleanliness have significant positive impacts on customer satisfaction and loyalty. Second, customer satisfaction has significant positive impact on loyalty. Third, as a result of fsQCA, high satisfaction and high accessibility were the necessary conditions on loyalty. Fourth, the necessary conditions for male and female groups were different. Conclusions - The implications of this study are as follows. Overall, multiplex cinemas should manage selection attributes basically regardless of the type of theater. Especially, cleanliness was not significant, but the customer probably consider it an essential and basic factors. Also, they are able to manage the selection attributes differently depending on the type of gender. For the male customers, it is effective that centralized strategy and for female customers, it is effective that emphasized the multiplex cinemas image.

• Korean Journal of Food Science and Technology
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• v.54 no.2
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• pp.196-202
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• 2022

In this study, the quality characteristics of Jeung-pyun with different amounts of Makgeolli (50, 100, 150, and 200 mL) were investigated, and standardization of the Jeung-pyun production process is suggested. Higher Makgeolli contents resulted in an increase in Jeung-pyun qualities such as the b value, air cell size, springiness, and cohesiveness, whereas Jeung-pyun characteristics such as the L values, pH, number of air cells, hardness, and gumminess significantly decreased. The specific volume was highest following method M-150, and the expansion rate was lowest following method M-200. Altering the Makgeolli content did not significantly differ in moisture content and b values. In the sensory evaluation results, the M-150 method produced the highest-ranking results for all tested items (i.e., overall acceptability, appearance, flavor, taste, and texture). Therefore, this study suggests that Jueng-pyun produced with the M-150 mixing ratio has excellent quality and sensory characteristics. Furthermore, the results of this study can be used as preliminary data for the standardization of Jueng-pyun production.

• Journal of the Korean Society of Radiology
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• v.16 no.5
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• pp.595-602
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• 2022

This study tried to suggest the most efficient learning rate for accurate and efficient automatic diagnosis of medical images for chest X-ray pneumonia images using deep learning. After setting the learning rates to 0.1, 0.01, 0.001, and 0.0001 in the Inception V3 deep learning model, respectively, deep learning modeling was performed three times. And the average accuracy and loss function value of verification modeling, and the metric of test modeling were set as performance evaluation indicators, and the performance was compared and evaluated with the average value of three times of the results obtained as a result of performing deep learning modeling. As a result of performance evaluation for deep learning verification modeling performance evaluation and test modeling metric, modeling with a learning rate of 0.001 showed the highest accuracy and excellent performance. For this reason, in this paper, it is recommended to apply a learning rate of 0.001 when classifying the presence or absence of pneumonia on chest X-ray images using a deep learning model. In addition, it was judged that when deep learning modeling through the application of the learning rate presented in this paper could play an auxiliary role in the classification of the presence or absence of pneumonia on chest X-ray images. In the future, if the study of classification for diagnosis and classification of pneumonia using deep learning continues, the contents of this thesis research can be used as basic data, and furthermore, it is expected that it will be helpful in selecting an efficient learning rate in classifying medical images using artificial intelligence.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.49 no.8
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• pp.671-680
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• 2021

This paper deals with the contents of designing and producing reconnaissance hardware and software, and verifying the functions after being installed on the CanSat platform and ground stations. The main reconnaissance mission is largely composed of two things: terrain search that renders the surrounding terrain in 3D using radar, GPS, and IMU sensors, and real-time detection of major objects through optical camera image analysis. In addition, data analysis efficiency was improved through GUI software to enhance the completeness of the CanSat system. Specifically, software that can check terrain information and object detection information in real time at the ground station was produced, and mission failure was prevented through abnormal packet exception processing and system initialization functions. Communication through LTE and AWS server was used as the main channel, and ZigBee was used as the auxiliary channel. The completed CanSat was tested for air fall using a rocket launch method and a drone mount method. In experimental results, the terrain search and object detection performance was excellent, and all the results were processed in real-time and then successfully displayed on the ground station software.

• Journal of the Korean Society of Floral Art and Design
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• no.44
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• pp.53-73
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• 2021

This study is on the creation of art works through the methodological process of deducting the experiences and inspired feeling which the researcher experienced in the subconscious level as well as the conscious level in the field of floral art creation. The scene setting technique was applied to seize inner experiences and feeling in subconscious level. More concretely, visual note technique and image research technique were applied to record and preserve scenes as the seized inner mental images. To delineate the contents, the researcher created art works based on the experiences during the preparation period at the small town of Tours in France as well as the competitive and tough every day life during the attendance at the fashion school of ESOMD International Paris. The researcher was able to create 5 art works of Deja Vu, 'ㅅ(Seoul-Paris)', '崩(A Mountain on Two Moons)', '燈 (Load out and Stay)', 'ㅇ'deducting the deep experiences and inspired feeling through the methodological process in the subconscious level as well as the conscious level. The researcher was able to explore inner experiences finding self in disquietude and process of personal realization through the creation. The meaning of this research could be found as a case of qualitative research which presents approaches utilizing method of deducting experiences in subconscious level and applying to the creation of art works.

• Journal of Korea Entertainment Industry Association
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• v.14 no.2
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• pp.155-164
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• 2020

This study identifies the relationship between selection value, existence value, heritage value, pride, and show on satisfaction, and suggests cultural marketing and cultural policy suggestions for Jikji cultural assets to activate Jikji as tourism cultural assets. Was intended. Therefore, the implications of this study are as follows. First, Jikji cultural property officials should develop tourism products that can mix Jikji cultural properties with the image and attractiveness of Jikji cultural properties. In addition, it is necessary to pay attention to education and public relations by city and county in providing local information, prices, and services for tourists to increase the satisfaction of tourists. Second, Jikji cultural property officials should suggest ways to create differentiating elements from tourism of other cultural properties. By emphasizing the existence, the existence value of Jikji cultural property should be increased. Third, Jikji cultural property officials should emphasize that Jikji tourism is more valuable as cultural heritage than now, and develop unique killer contents that can be boasted to others in tourism and present it to tourists. Fourth, Jikji cultural property officials should prepare a plan for local residents to recognize how excellent cultural heritage is. It should also be recognized that Jikji cultural property has high added value as a tourist factor. Lastly, Jikji cultural property officials should promote various jikji projects to local residents and tourists to increase their pride and awareness that Jikji cultural property exists in a certain area.