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Within five years of Kim Jong-un's rise to power, North Korea conducted four nuclear tests and launched the Hwasong-15, an intercontinental ballistic missile (ICBM), in 2017, declaring the completion of its nuclear forces. During the period when Kim Jong-un completed nuclear forces to maintain the regime, foreign policy factors of the United States, China, Russia, and South Korea drove North Korea's accelerated nuclear development. The main motivating factors were the hostile policies and external threats as security factors. The completion of nuclear forces is also the result of the interplay of domestic political factors, normative factors, and hereditary factors. North Korea has been developing nuclear weapons and missiles for the survival of its regime. To achieve lasting peace on the Korean Peninsula, a new modus vivendi must be sought. It is necessary to set the ultimate goal of North Korea's complete denuclearization and engage in strategic thinking for a realistic and effective phased approach.

The rapid advancement of drone technology has significantly altered the landscape of modern warfare, presenting both opportunities and challenges for military forces worldwide. As drones become increasingly sophisticated, capable of performing complex missions such as reconnaissance, surveillance, and precision strikes, the development of effective air defense systems has become a critical priority. This study examines the current state of drone and air defense technologies, analyzing their impact on military strategies, tactics, and the future battlefield environment. By exploring the patterns of technological evolution, the limitations of existing air defense systems, and the potential consequences of drone proliferation, this research highlights the need for adaptive, innovative approaches to counter emerging threats. The findings underscore the importance of investing in advanced detection and interception capabilities, developing comprehensive counter-drone doctrines, and fostering international cooperation to address the ethical and legal challenges posed by the military use of drones. As the competition between drone and air defense technologies continues to intensify, policymakers and military leaders must proactively engage in shaping the future of warfare to ensure national security and stability in an increasingly complex world.

This study aims to explore improvement measures for the linkage system between the police and social welfare agencies in responding to domestic violence and child abuse issues in South Korea by comparing and analyzing the current systems in South Korea, the United States, and the United Kingdom. Despite the legal and institutional foundations for victim protection and perpetrator correction in each country, the effectiveness of actual cooperation faces several limitations. In South Korea, the level of cooperation is insufficient due to the lack of information sharing, role conflicts, and ambiguity of cooperation procedures. The United States and the United Kingdom operate more systematic cooperation programs, showing notable achievements in mental health crisis intervention and domestic violence response. To improve the linkage system in South Korea, this study proposes the following measures: (1) developing a clear cooperation protocol, (2) conducting regular education and training programs, (3) establishing an integrated information system, and (4) strengthening the victim-centered approach. Implementing these measures will contribute to more effective responses to domestic violence and child abuse issues, ultimately leading to a healthier and safer society by reducing social costs through victim protection and perpetrator correction.

The conflict between Iran and Israel has been a major source of instability and security threats in the Middle East. This study analyzes the historical background and modern aspects of the Israel-Iran conflict, examining its root causes, nuclear issues, proxy wars, cyber warfare, economic sanctions, and the role of the United States. The research employs qualitative methods, including literature review and case analysis, using various sources such as academic papers, government reports, and media articles. The findings suggest that the conflict is deeply rooted in historical, religious, and political factors, and has escalated since the 1979 Iranian Revolution. The study highlights the need for dialogue, negotiation, and international mediation to resolve the conflict and maintain regional stability. The Israel-Iran conflict also provides valuable lessons for addressing the North Korean nuclear issue, emphasizing the importance of dialogue, international cooperation, and confidence-building measures.

The rapid advancement of drone technology has led to the emergence of drone swarms, a game-changing concept in modern warfare. This study explores the military applications, countermeasures, and strategic implications of drone swarms. By examining the current trends in drone swarm development and deployment, this research highlights the potential of this technology to revolutionize the battlefield. The study also investigates the challenges and vulnerabilities associated with drone swarms, emphasizing the need for effective countermeasures. Through an analysis of multi-sensor fusion, directed energy weapons, and artificial intelligence, this research proposes comprehensive strategies to counter the threats posed by drone swarms. Furthermore, the study delves into the ethical and legal issues surrounding the use of autonomous drone swarms, underscoring the necessity for international norms and regulations. The findings of this research contribute to the understanding of the transformative impact of drone swarms on military strategy and national security, while providing valuable insights for policymakers, military strategists, and researchers in the field.

This is a descriptive correlational study aimed at determining the relationship between SOC strategy, life satisfaction, and successful aging in middle-aged women. The study population was middle-aged women aged 40-65 years living in one metropolitan city, and 295 data collected using a structured questionnaire were used to analyze the results. The collected data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, and Pearson's correlation using SPSS WIN/PC 24.0 statistical program. In the results of this study, the general characteristics related to successful aging in middle-aged women were identified as age, occupation, religion, economic status, presence of chronic diseases, and health status perception, menopause as significant influencing variables. In addition, successful aging was positively related to SOC strategy and life satisfaction among the middle-aged women in this study (p<.05). In particular, life satisfaction was highly correlated with successful aging in this study, and in this regard, efforts should be made to develop various programs to help middle-aged women feel satisfied with their lives so that they can transition to successful aging.

In Dangjin, Chungcheongnam-do, there are not only power plants and large steel complexes, but also small and medium-sized air pollutant emission facilities. The dust generated by these facilities has a very small particle size and a large surface area due to condensation and physical and chemical reactions, and is discharged containing various harmful substances. Therefore, this study analyzed the distribution of particulate matter and heavy metal concentrations by particle size in the vicinity of the steel complex, residential area, and reference point using an eight-stage Cascade Impactor. Overall, the direct impact sites with a short distance from the steel complex had the highest concentration, followed by the indirect impact sites, and the non-impact sites had the lowest concentration, indicating that they are directly affected by the steel complex. The atmospheric dust concentration distribution showed a bimodal distribution with a minimum value around the 1.1 to 2.1 μm particle diameter. However, during the yellow dust event, the maximum concentration was biased toward coarse particles. The proportion of PM2.5 in the dust tended to be higher in winter, while the ratio between PM2.5 and PM10 was relatively higher in spring. Regardless of the location of the impact point, heavy metals in the dust were dominated by iron and aluminum, followed by zinc, lead, and manganese.

We are designed to solve cyber motion sickness, an important task that must be addressed for the growth of the virtual reality content industry. Not only the industry but also academia are paying a lot of attention. However, despite long interest and research on the phenomenon of cyber motion sickness, a solution has not been drawn. This is deeply related to the lack of tools that can effectively measure cyber motion sickness. Therefore, in this paper, prior studies on cyber motion sickness were analyzed to develop a tool that can effectively measure cyber motion sickness when users experience immersive virtual reality. The measurement method of cyber motion sickness used in previous studies, each characteristic and limitation, and common factors related to cyber motion sickness were analyzed. Each of the related factors was derived as sub-factors. Based on the analyzed contents, an effective cyber motion sickness measurement evaluation tool model in immersive virtual reality was presented. It is expected that the evaluation tool model can be used for the study of cyber motion sickness.

The color temperature and light color of nighttime lighting in a particular city is an important factor in determining its nighttime identity. To quantitatively analyze the nocturnal characteristics of Seoul, this study focuses on the light color of the lighting sources that used in the places included in the Seoul Night View 100 Photobook. As a result, the color temperature of white light in the surveyed places is in the range of 2,500~3,500K, of which 3,000~3,500K represents the highest proportion. In addition, the color temperature in the 2,500~3,500K range was found to be evenly distributed across the five surveyed regions. Apart from white light, blue color hue accounts for a high percentage in the monochromic light category, and the excitation purity was measured to be 71.6% on average. In addition, 46% of the buildings with monochromic light are in urban centers.

The purpose of this study was to examine the role of parental support in mitigating the impact of discrimination experiences on depression among children and adolescents. This focus was based on the premise that experiences of discrimination can negatively affect peer relationships as well as behavioral and emotional development in youths who spend a significant amount of time with their peers at school. We aimed to explore the mediating role of parental support and to present policy and practical recommendations from a social welfare perspective. For this purpose, data from the "2020 Survey on the Human Rights of Children and Adolescents" was utilized, involving 9,000 students ranging from 4th to 6th grade in elementary school, grade in middle school, and grade in high school from across the country. The study was conducted targeting these groups. For research analysis, frequency analysis using SPSS 26.0 was employed to calculate the general characteristics of the study subjects and the reliability coefficient of the testing tool. And regression analysis was conducted to verify the mediating effect of parental support on the impact of discrimination experiences on depression. The analysis revealed that there were 4,473 males (51.9%) and 4,150 females (48.1%), and that experiences of discrimination had a negative effect on depression (B=311, P<0.001). It was found that the more frequent the experiences of discrimination, the higher the level of depression, and the more a youth experienced discrimination, the greater the psychological depression they endured.

During an X-ray examination, the beam of radiation is dispersed in many directions. We believe that managing radiation dose is about providing transparency to users and patients in the accurate investigation and analysis of radiation dose. The purpose of measuring the radiation dose as a function of location is to ensure that medical personnel using the equipment or participating in the operating room are minimally harmed by the different radiation doses depending on their location. Four mobile diagnostic X-ray units were used to analyze the radiation dose depending on the spatial location. The image intensifier and the flat panel detector type that receives the image analyzed the dose by angle to measure the distribution of the exposure dose by location. The radiation equipment used was composed of four units, and measuring devices were installed according to the location. The X-ray (C-arm) was measured by varying the position from 0 to 360 degrees, and the highest dose was measured at the center position based on the abdominal position, and the highest dose was measured at the 90° position for the head position when using the image intensifier equipment. The operator or medical staff can see that the radiation dose varies depending on the position of the diagnostic radiation generator. In the image intensifier and flat panel detector type that accepts images, the dose by angle was analyzed for the distribution of exposed dose by position, and the measurement method should be changed according to the provision of dose information that is different from the dose output from the equipment according to the position.

In the context of contemporary digital media, virtual influencers have become an increasingly important form of socialization and entertainment, in which emotional expression is a key factor in attracting viewers. In this study, we take Luo Tianyi, a Chinese virtual influencer, as an example to explore how emotions are expressed and perceived through facial expressions in different types of videos. Using Paul Ekman's Facial Action Coding System (FACS) and six basic emotion classifications, the study systematically analyzes Luo Tianyi's emotional expressions in three types of videos, namely Music show, Festivals and Brand Cooperation. During the study, Luo Tianyi's facial expressions and emotional expressions were analyzed through rigorous coding and categorization, as well as matching the context of the video content. The results show that Enjoyment is the most frequently expressed emotion by Luo Tianyi, reflecting the centrality of positive emotions in content creation. Meanwhile, the presence of other emotion types reveals the virtual influencer's efforts to create emotionally rich and authentic experiences. The frequency and variety of emotions expressed in different video genres indicate Luo Tianyi's diverse strategies for communicating and connecting with viewers in different contexts. The study provides an empirical basis for understanding and utilizing virtual influencers' emotional expressions, and offers valuable insights for digital media content creators to design emotional expression strategies. Overall, this study is valuable for understanding the complexity of virtual influencer emotional expression and its importance in digital media strategy.

The study introduces and validates a model of post-traumatic growth among parents of children with special needs. The model incorporates cognitive processes, coping strategies, and sociocultural factors as intra-personal variables. The statistical analysis unveiled significant pathways that connect the factors, explaining 71% of the variance associated with post-traumatic growth. The study highlighted intentional reflection and robust decentralization skills as crucial factors that predict post-traumatic growth. Deliberate rumination functioned as a mediating factor, reducing the impact of trauma and facilitating post-traumatic growth, while social support played a crucial role in initiating purposeful rumination. The study findings indicate that the effect of self-disclosure on post-traumatic growth is not direct but rather indirect, as it is mediated by its influence on social support and deliberate rumination. The study underscores the significance of examining particular characteristics of social support networks and suggests integrating additional variables for future research, such as gender, types of traumatic events, and the age of children with disabilities.

The purpose of this research is to discuss the development history and future strategy of Geely Automobile Group Co., Ltd. Founded in 1997, Geely Automotive Group has grown from a small workshop to one of China's leading automakers after nearly three decades of development.This paper first reviews the development of Geely Automobile, from the initial small-scale production to the current global layout and diversified product line. Secondly, it analyzes the challenges and opportunities faced by Geely Automobile, including the intensification of market competition and the changing demand for technological innovation.And put forward the future development strategy of Geely Automobile, including improving the quality of products, expanding the international market and promoting the development of new energy vehicles. By analyzing the development history and future strategy of Geely Automobile Group Co., Ltd., we can better understand the company's position and future development direction in China's automobile industry.

This study aims to investigate the effecst of stress and health care patterns on sleep qualtity of college students in three regions. The data was collected from September 7 to December 8, 2023, and 454 samples of data were used for analysis .Data was analyzed by descriptive statistics, Pearson’s correlation, and multiple regression anlysis. The results of this study are as follows; Firstly, 42.3% of the subjects spent an average of 30 minutes to less than 1 hour in sunbathing, 37.7% of the subjects walked more than 7,000 steps a day on averag, 35.5% of the subjects did not do moderate aerobic exercise at all, 63.9% of the subjects had more than 1 hour of blue light exposure before going to sleep, and the majority of subjects' sleep quality was 'not sleeping well' (74.0%). Secondly, factors that affect the quality of sleep were found to be grade, average daily walking steps and stress. Through this results, it is necessary to make efforts to increase walking and manage stress which affect the quality of sleep for college students.

This study shows that, in a situation where the influence of the mobile Internet is increasing in all areas of modern society, SNS users' participation in sports has a significant impact on the development of the sports market and the public's exercise methods and sports awareness. Therefore, the purpose of this study is to determine the impact of awareness of sports values through SNS on participation in sports activities. In order to achieve this research purpose, the population of the study was adults who had experience participating in SNS sports communities. The sampling method used was convenience sampling, and a total of 300 people, 150 men and 150 women, were selected as research subjects through sharing the questionnaire link online and via email. The survey tool used was a questionnaire, and it was modified and supplemented for this study based on a questionnaire that had secured reliability and validity in previous studies. The statistical analysis used for data analysis was frequency analysis, exploratory factor analysis, reliability analysis, and multiple regression analysis using SPSS Windows 20.0 Version. The conclusions obtained in this study through data analysis according to these methods and procedures are as follows. First, SNS sports community participants' perception of sports value was found to partially affect their perception of fun. Second, SNS sports community participants' perception of sports value was found to partially affect sports activities. Third, SNS sports community participants' perception of the fun of sports partially influenced sports activities.

The purpose of this study is to determine the impact of Chinese international students' academic resilience on acculturation stress and college life adjustment. In order to achieve this research objective, the research subjects were Chinese students participating in sports in Korea. The sampling method was convenience sampling, and a total of 300 people, 150 men and 150 women, were selected as research subjects through sharing the questionnaire link online and email. The research tool used in this study was a questionnaire. Based on the questionnaire that had secured reliability and validity in previous research, it was modified and supplemented to suit this study. The statistical analysis used for data analysis was frequency analysis, exploratory factor analysis, reliability analysis, and multiple regression analysis using SPSS Windows 22.0 Version. The conclusions obtained in this study through data analysis according to these methods and procedures are as follows. First, the academic elasticity of Chinese students participating in sports has partially influenced by cultural adaptation stress. Second, the academic elasticity of Chinese students participating in sports has partially influenced by university life. Third, the acculturation stress of Chinese students participating in sports was found to partially affect their adaptation to university life.

The subjects of this study were college students who participate in Wushu in China. A total of 300 people, 189 male and 111 female, were sampled as research subjects through convenience sampling by sharing the questionnaire link online and sending emails. The research tool used in this study was a questionnaire. Based on the questionnaire that had secured reliability and validity in previous research, it was modified and supplemented to suit this study. The statistical analysis used for data analysis was frequency analysis, exploratory factor analysis, reliability analysis, and multiple regression analysis using SPSS Windows 20.0 Version. First, Wushu image was found to have a partial effect on self-congruity. Second, Wushu image was found to have a partial effect on loyalty. Third, the self-congruity of Wushu participants was found to partially affect loyalty.

This study provides academic implications by considering trends of domestic research regarding therapy for sensory integration intervention based on vestibular-proprioceptive system. For the analysis of this study, text mining with the use of R program and social network analysis method have been used and 53 papers have been collected. In conclusion, this study presents significant results as it provided basic rehabilitation data for sensory integration intervention based on vestibular-proprioceptive system through new research methods by analyzing with big data method by proposing the results through visualization from seeking research trends of sensory integration intervention based on vestibular-proprioceptive system through text mining and social network analysis.