• The Journal of Korean Institute of Next Generation Computing
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• v.13 no.3
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• pp.60-71
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• 2017

Smart devices such as smart phones, smart TVs, and smart pads have become essential devices in recent years. As the popularity and demand grows, the performance of smart devices is also getting better and users are dealing with a lot of things such as education and business using smart devices instead of desktop. However, smart devices that still have poor performance compared to desktop, even with improved performance, have difficulty running high performance applications due to limited resources. In this paper, we propose a load balancing algorithm applying the characteristics of smart devices to overcome the resource limitations of devices. in order to verify the algorithm, we implemented the algorithm after adding the distributed processing system service in Android platform. After constructing the cluster on the smart device, various experiments were conducted. Through the analysis of the test results, it is confirmed that the proposed algorithm efficiently improves the overall distributed processing performance by effectively aggregating different amounts of computing resources in heterogeneous smart devices.

• Journal of the Korean Geosynthetics Society
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• v.22 no.4
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• pp.63-71
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• 2023

The extreme cold regions, including the South and North Poles, are rich in resources, but there are many constraints on resource development projects due to difficult access and a construction environment that is completely different from that of Korea. In recent years, global warming has increased the demand for the construction of resource exploitation plants. For resource development construction activities, a preliminary site analysis is required to minimize the risk of project implementation. In this study, the factors were analyzed to be considered in construction activities in extreme cold and optimal location selection system based on Geographic information system(GIS) has been developed. As a result of applying the development system to Alberta, Canada, where oil sand development is actively underway, it was confirmed that the results were consistent with the currently operating oil sand mining area.

• Health Policy and Management
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• v.33 no.4
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• pp.389-399
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• 2023

Background: The purpose of this study is to analyze the factors affecting the unmet healthcare needs of older people with chronic diseases in Korea and provide a basic research report to strengthen their access to medical care. Methods: In the 2020 older people survey data, 8,182 older people aged 65 or older who were diagnosed with one or more chronic diseases were the final subjects of the study. According to Andersen's behavioral model used in unmet healthcare needs, independent variables were composed of predisposing factors, possible factors, and necessary factors, and whether or not unmet healthcare needs was set as dependent variable. Results: Of the older people with chronic diseases, 1.6% experienced unmet healthcare needs, of which 55.9% experienced unmet healthcare needs for reasons related to economic burden, 31.6% physical constraints, and 12.5% time constraints. As a result of the analysis, older people with chronic diseases were more likely to experience unmet healthcare needs if they were relatively low in age, low in education level, no spouse, low in household income, poor subjective health, complex chronic diseases, and functional restrictions. However, by major reasons for experiencing unmet healthcare needs, living in rural areas were more likely to experience unmet healthcare needs due to physical constraints, and those who participated in economic activities and who had were more likely to experience unmet healthcare needs due to time burden. These results were not derived when only unmet healthcare needs was set as the dependent variable. Conclusion: This study emphasizes the need for an approach by cause of unmet medical occurrence by suggesting that there are differences in influencing factors by reason for experiencing unmet healthcare needs.

• Advances in aircraft and spacecraft science
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• v.10 no.6
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• pp.495-519
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• 2023

The drone serves the customers not served by vans. At the same time, considering the safety, policy and terrain as well as the need to replace the battery, the drone needs to be transported by truck to the identified station along with the parcel. From each such station, the drone serves a subset of customers according to a direct assignment pattern, i.e., every time the drone is launched, it serves one demand node and returns to the station to collect another parcel. Similarly, the truck is used to transport the drone and cargo between stations. This is somewhat different from the research of other scholars. In terms of the joint distribution of the drone and road vehicle, most scholars will choose the combination of two transportation tools, while we use three. The drone and vans are responsible for distribution services, and the trucks are responsible for transporting the goods and drone to the station. The goal is to optimize the total delivery cost which includes the transportation costs for the vans and the delivery cost for the drone. A fixed cost is also considered for each drone parking site corresponding to the cost of positioning the drone and using the drone station. A discrete optimization model is presented for the problem in addition to a two-phase heuristic algorithm. The results of a series of computational tests performed to assess the applicability of the model and the efficiency of the heuristic are reported. The results obtained show that nearly 10% of the cost can be saved by combining the traditional delivery mode with the use of a drone and drone stations.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.2
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• pp.427-436
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• 2024

Recently, the importance of information security (IS) has been socially recognized, leading organizations to adopt IS policies, secure specialized personnel, and demand IS compliance from employees. However, the implementation of these policies can disrupt existing work processes, causing resistance among employees. This study aims to elucidate the mechanism linking work stress, caused by IS policies that do not consider the work system, to individual job burnout and IS policy resistance. We established a research model and hypotheses based on previous studies and utilized structural equation modeling with data collected from organization members of companies that have implemented IS policies. The results of the structural equation modeling confirmed that work ambiguity and work impediment are linked to IS policy resistance through job burnout, characterized by emotional exhaustion and disengagement. Our findings suggest that the swift implementation of IS policies can provoke a backlash from employees, with stress being the primary cause. This paradoxically indicates the need for the development of organization-specific IS policies.

• Asia-Pacific Journal of Business
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• v.15 no.1
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• pp.289-304
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• 2024

Purpose - Focusing on the FGI research method, the current status and issues of barrier-free tourism in Gangwon State were identified, and specific activation plans were derived Design/methodology/approach - This study conducted in-depth interviews with 20 experts related to the tourism industry. The issues, current status, and activation plan of barrier-free tourism in Gangwon State recognized by experts in tourism policy, tourism administration, tourism management, and tourism service industry were derived. Findings - First, the tendency of businesses to be promoted based on the non-disabled by not recognizing the weak as the main tourism demand group, second, confusion caused by the unification of terms related to barrier-free tourism, third, lack of finding tourism constraints subdivided according to the type and degree of disability, fourth, tourism information and evaluation indicators provided by prioritizing the convenience of suppliers rather than consumers, and fifth, the nature of the project focused on improving access to physical infrastructure. Subsequently, the results of the analysis of the plan to revitalize the barrier-free tourism industry in Gangwon State were as follows. First, education and programs to improve disability awareness appropriate to local conditions were activated, second, related information was unified and project sustainability was improved by creating a control tower for the barrier-free tourism industry at the provincial level, third, to overcome the employment crisis based on finding locally tailored jobs related to tourism care professionals, and fourth, to continuously secure quantitative and qualitative data and establish utilization plans. Research implications or Originality - First, it presents theoretical implications for related fields by providing issues and activation measures related to barrier-free tourism from the perspective of experts who are still lacking in research in academia. The practical implications are that based on the opinions of experts working in the tourism field, more specific issues of the barrier-free tourism industry in the province were presented, and policy and practical solutions were presented accordingly, suggesting realistic alternatives that can be carried out in the actual field.

• Journal of the Health Care and Life Science
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• v.10 no.2
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• pp.285-293
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• 2022

This study is to confirm the effects of COVID-19 stress and patient-related social stress (unreasonable demand, aggression) on emotional exhaustion and patient-friendly orientation. In addition, it is to confirm the role of moderating variables in the relationship between the meaning of work of health care providers and patient-related stress caused by COVID-19 and emotional exhaustion. Data were collected through an online survey targeting health care service providers, and the final 219 copies were used for analysis. As a result of the analysis, it was confirmed that corona stress is a factor that increases emotional burnout for health care providers. In the case of patient-related stress, it was confirmed that the patient's unreasonable demands increased emotional exhaustion, but aggression did not show statistically significant results. These research results can provide not only theoretical implications for health care service quality improvement, but also managerial implications for preparing plans for internal employee management.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.4
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• pp.741-752
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• 2024

Organizations amplify their information security (IS) technical investments as the demand for IS escalates. This research suggests conditions for enhancing insider compliance with IS, focusing on the potential for behavior modification through techno-stress and organizational justice, based on the theory of planned behavior. To test the proposed hypothesis, this study utilized a survey methodology on 383 employees from companies with implemented IS. The test results showed that IS techno-stress (overload and uncertainty) caused by reduced attitudes of employees, and organizational justice increased subjective norms, influencing IS compliance intentions along with self-efficacy. Additionally, organizational justice has been found to alleviate the adverse effects of IS overload and uncertainty on attitudes. The findings are expected to help clarify measures for achieving IS performance within the organization by proposing organizational justice conditions to improve the negative IS environment of the organization.

• Journal of the Health Care and Life Science
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• v.11 no.2
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• pp.351-360
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• 2023

2018 aged patient dataset (HIRA-APS), 33,821 patients admitted to long-term care hospitals were classified by major disease groups to identify the characteristics of medical use and provide effective policy data. First, it is necessary to operate specialized long-term care hospitals such as dementia, rehabilitation, hospice, and recovery specialization tailored to the characteristics of the patient's disease group. Second, the paralysis group, cerebrovascular disease group, and dementia group were the longest LOS and the cognitive impairment group is the longest by patient classification group, requiring medical demand and quality management for long-term patients. Third, the musculoskeletal disease group was the highest normal discharge, and support for the post-discharge home program is required in paralysis and cerebrovascular disease.

• Journal of the Health Care and Life Science
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• v.9 no.2
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• pp.245-252
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• 2021

We surveyed the lecture types and campus lifes which college students preferred during COVID-19 Pandemic situation. Students who attend colleges in Gwangju city, Jeonnam and Jeonbuk province, answer a questionnaire. The principal result of the survey showed that all grades preferred un-contact lecture but nevertheless also preferred the compound method of contact and un-contact lecture(p=0.923). In educational satisfaction degree by lecture type, the degree of satisfaction for contact lecture ranked highest at 2.82(p=0.000). But the survey showed the degree was not a variable which had a significant effect on the improvement of scholastic performance(p=0.325). The questionnaire analysis shows that students demand un-contact lecture high because of infection risk, but they wish the un-contact lecture which can solve problems in real time rather than the recorded lecture. As a result of this study, instructor is highly required to prepare un-contact teaching plans which reflect the demands of students.