• Journal of the Korea Fashion and Costume Design Association
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• v.21 no.1
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• pp.59-72
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• 2019

The purpose of this study is to analyze the present condition of the Korean footwear industry, and its competitiveness through related precedent research. Research was done by analyzing data from the Korean Statistical Information Service, the Korea International Trade Association and advanced research about the footwear industry. Footwear markets all over the world are growing continuously. The main consumers are China, America and India. World footwear trade is showing a growth trend on the basis of cost and amount. The main exporting countries are China, Vietnam and Italy, while main importing countries are America, Germany and France. The domestic market and the export market of footwear in Korea are decreasing. The scale of exporting footwear is gradually decreasing, however the scale of importing footwear is increasing. Korea exports footwear to China, Vietnam and Japan and imports them from China, Vietnam and Indonesia. Studies concening the footwear industry implied that the competitiveness of Korea has been weakened both in the domestic and the export markets. To enhance the competitiveness of Korean footwear corporations, long-term support at the national level is needed. Especially, cultivating competitive experts is crucial to improve the competitiveness of designs and the quality of products. Furthermore, branding strategies using the Korean wave, Korean culture and the national image of Korea, as well as platform strategies to communicate with consumers globally and selling high-quality products are significant.

• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.169-177
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• 2018

This convergence study was combined research on identifying the effect of health behavior and awareness of Korean wave (Hallyu) on academic adjustment of foreign students living in Korea, and providing support for future foreign students to easily adjust to Korean culture. The subjects for this study are foreign students attending G University and were studied from April 2nd to 30th,2018. The collected data were analyzed using SPSS statistical program. According to the multiple regression analysis which was conducted to analyze the effect of health behavior and awareness of Korean wave on academic adjustment of foreign students, the older and the longer the stay, the poorer the academic adjustment; on the other hand, the higher the frequency of exercise and awareness of Korean wave, the better the academic adjustment. Further, it is necessary to address plans and measures to develop academic adjustment of foreign students by providing health care programs and Korean wave culture programs on sustainable health education and sports.

• Journal of the Korea Convergence Society
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• v.9 no.11
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• pp.433-441
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• 2018

The purpose of this study is to understand the effect of psychosocial support, death preparedness, and ego integrity on death anxiety in old people. The participant of this study were the elderly who attended welfare centers, worked in their workplaces, or lived at their home in Seoul regions, from whom this study had collected their data from February to May 2017. A total of 350 questionnaires were distributed and 329 copies of them were used for its final analysis using SPSS 24.0 and AMOS 20.0 statistical programs. According to the results of this study, psychosocial support had no statistically significant effect on death anxiety, whereas death preparedness and ego integrity had statistically significant effects on death anxiety. Based upon these research results, this study suggested that it is necessary to develop death education and counseling programs as policy supports and practical methods for helping old people to accept their death positively, reintegrate their ego, and perform their successful aging.

• Journal of the Korean Institute of Landscape Architecture
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• v.47 no.4
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• pp.1-11
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• 2019

The purpose of this study is to determine urban walking tourists' spatiotemporal movement densities and the stopping characteristics by season. With the Bukchon Hanok Village in Seoul, as the study site, a GPS-based smartphone application collected spatiotemporal data, and GIS and statistical methods were used to analyze the urban walking tourists' spatiotemporal activities in the spring and summer. The results show that the moving and staying variables of urban walking tourists differ significantly by season. In addition, spatiotemporal movement densities and stopping characteristics using ArcGIS's tools show clear spatial and temporal concentrations along the main access roads and commercial areas of the study site in the spring and summer. Policy-makers and developers of urban walking tours should use these spatiotemporal concentrations of walking tourists to define policies that would control the capacities of urban walking areas and distribute tourists spatially and temporally.

• Journal of radiological science and technology
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• v.42 no.1
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• pp.19-24
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• 2019

For general radiological examinations, even in the same area and the same test, the test conditions must be set differently according to the patient. However, since it is impossible to consider the body shape and conditions of patients every time in medical institutions where various patients visit, the tests are conducted by setting the AEC which automatically sets the test conditions. AEC is most commonly used in chest radiography. Therefore, the purpose of this study is to propose the improvement plans for using AEC by measuring the exposure dose and evaluating the image quality according to whether the AEC is used or not, and to provide basic data for AEC research. In the present study, images were acquired while varying tube voltage and test distance according to the use of AEC in chest radiography. The radiation dose was measured by placing the dosimeter in front of the chest phantom, and the CNR and SNR of acquired images were analyzed using Image J. The t-test was conducted for the statistical analysis and the significance was determined at the level of 95%(p<.05). As a result of this study, in the inspection distance (100cm, 140cm, 180cm) according to the use of AEC, high doses were observed when the AEC was used and there was statistically significant difference(p<.05). In the t-test to determine the difference between CNR and SNR depending on whether AEC was used or not, there was no significant difference according to the use of AEC(p>.05). Therefore, when performing chest radiography, if the radiologist establishes the appropriate examination conditions and conducts the examination by not just relying solely on AEC, it may be possible to reduce unnecessary radiation exposure to the patient.

• Resources Recycling
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• v.28 no.2
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• pp.23-30
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• 2019

An color sorting technique was introduced to recycle End-of-life automobile shredded bumpers. The color sorting is a innovate method of separating the differences in the color of materials which are difficult to separate in gravity and size classification by using a camera and an image process technique. Experiments were planned and optimal conditions were derived by applying BBD (Box-Behnken Design) in the reaction surface method. The effects of color sensitivity, feed rate and sample size were analyzed, and a second-order reaction model was obtained based on the analysis of regression and statistical methods and $R^2$ and p-value were 99.56% and < 0.001. Optimum recovery was 94.1% under the conditions of color sensitivity, feed rate and particle size of 32%, 200 kg/h, and 33 mm respectively. The recovery of actual experiment was 93.8%. The experimental data agreed well with the predicted value and confirmed that the model was appropriate.

• Journal of The Korean Society of Integrative Medicine
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• v.6 no.4
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• pp.29-38
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• 2018

Purpose: The purpose of this study was to investigate the psychological symptoms of insomnia, impulsiveness, and memory impairment according to the drinking frequency of college students. Methods: From May 4 to May 17, 2018, a questionnaire survey was conducted for men and women enrolled in J city S university in the Department of Occupational Therapy, Architecture, Social Welfare, and Digital Content. After visiting the department to explain the purpose of the study, 400 questionnaires were distributed to those who agreed to participate in the study. The SPSS 22.0 program was used to analyze the data collected. All statistical analyses were performed at the significance level of 5 %. Results: There is a correlation between alcohol consumption and psychological symptoms, such as insomnia, impulsivity, and memory impairment. As a result of analyzing all departments, insomnia, impulsivity, and memory impairment were the highest in the addiction level. In post-analysis of psychological symptoms, insomnia and impulsiveness had no significant difference, but there was a significant difference in memory impairment (p=.04). Conclusion: Our hope is that this study will help activate programs like preventative education and counseling on alcohol-related psychological symptoms for college students.

• Journal of The Korea Institute of Healthcare Architecture
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• v.24 no.4
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• pp.17-25
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• 2018

Purpose: Korean society is undergoing the rapid increase and poverty of elderly population. Therefore, the appropriate supply and planning of public rental housing for the low-income elderly is more important. The purpose of this study is to present the basic data for the study and planning of the elderly housing complex by analyzing the cognitive characteristics of the elderly residing in the rental housing. Methods: A questionnaire survey was conducted to identify health characteristics of the elderly living in the 'Gongreung SH Apartment'. 100 random samples were collected and 82 valid samples were analysed. Statistical analysis was performed using Excel and R for the age, sex, health, outdoor walking frequency and characteristics of Cognitive map of the elderly. Results: The characteristics of cognitive map were classified into point shapes and linear shapes. The linear group was lower in average age than the point group and tended to draw the map wider. The wider the map was, the more the number of elements in cognitive map was. The number of elements on the cognitive map decreased as respondents' age increased. On the other hand it was not related to residence period and gender of the elderly. Implication: The cognitive extent of the residential environment tends to decrease with age. Men's cognitive range is wider than women's. There is no corelation between the number of cognitive elements and cognitive map type. Men tend to have a systematic image of city, whereas women focus on relational and social urban factors. For sustainable apartment complex design, various characteristics of the group including men and women, different age and different health status should be considered.

• Atmosphere
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• v.28 no.4
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• pp.457-467
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• 2018

This study investigated the variability of spring (March-May) forest fire risk in Korea for the period 1991~2017 and analyzed its relationship with large-scale climate factors. The Forest Weather Index (FWI) representing the meteorological risk for forest fire occurrences calculated based on observational data and its relationship with large-scale climate factors were analyzed. We performed the empirical orthogonal function (EOF) analysis on the spring FWI. The leading EOF mode of FWI accounting for about 70% of total variability was found to be highly correlated with total number of forest fire occurrences in Korea. The high FWI, forest fire occurrence risk, in Korea, is associated with warmer atmosphere temperature in midwest Eurasia-China-Korea peninsula, cyclonic circulation anomaly in northeastern China-Korea peninsula-northwest pacific, westerly wind anomaly in central China-Korea peninsula, and low humidity in Korea. These are further related with warmer sea surface temperature and enhanced outgoing longwave radiation over Western Pacific, which represents a typical condition for a La $Ni\tilde{n}a$ episode. This suggests that large-scale climate factors over East Asia and ENSO could have a significant influence on the occurrence of spring forest fires in Korea.

• Journal of Positioning, Navigation, and Timing
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• v.7 no.4
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• pp.217-226
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• 2018

According to the Korea Coast Guard's maritime disaster statistics (Korea Coast Guard 2017, Korean Statistical information Service 2018), an average of 2,140 marine accidents occurred every year for the past 6 years and the number of accidents is increasing every year. Among them, maritime accidents of fishing vessels are the most frequent, and recently accidents involving fishing boat and leisure vessels are rapidly increasing as well. In particular, the number of accidents involving leisure vessels increased to about one-third of the accidents of fishing vessels, and emergency rescue requests are increasing every year accordingly. However, the number of crash accidents involving users of small vessels and marine leisure activities are increasing because of the difficulties of installing navigation equipment and electronic navigation charts. Recently, the demand for precise positioning using mobile devices is increasing in the fields of maritime safety, piloting support, and coastal survey. Although various applications of smart devices provide location-based services for users, the measurement results are discontinuous when using the position coordinates of the National Marine Electronics Association (NMEA) calculated by smartphone. Recently, Google announced that they will provide GPS raw data to developers from Android 7.0 Nougat. As a result, developers have an opportunity to receive precise carrier phase and code measurements to make more accurate positioning according to the performance of Android devices. This study analyzed GPS positioning performance using Android devices, and compared and analyzed the positioning performance at sea with high-performance GPS receivers.