seonjingugbangyeongu最新文献

{"title":"Collaboration against infectious diseases in border region between North and South Korea","authors":"Jonggeuk Yoon, Yooncheol Choi","doi":"10.37944/jams.v6i2.219","DOIUrl":"https://doi.org/10.37944/jams.v6i2.219","url":null,"abstract":"This study aims to prepare countermeasures that prevent the spread of infectious diseases including malaria and African Swine Fever (ASF) in regions adjacent to the DMZ and border region between North and South Korea and propose exchanges and collaboration measures between North and South Korea against diseases. For this, we reviewed cases of inter-Korean cooperation promoted by the Korean government or local governments and related studies and examined collaboration and problem factors in health and medicine between North and South Korea. Additionally, rooted by the exchange model for border areas between East and West Germany, we suggest applicable measures in the inter-Korean border areas. We put forward proposals for the continuous and specific development of inter-Korean health and medical cooperation plan on the basis of establishing Committee on Border Areas and Agreement on Health and Medicine by supplementing the limitation of piecemeal approach and support at one-time in North-South Korea relations in the past. Additionally, the current study suggests the need for inter-Korean cooperation at the local government level for joint malaria prevention, and prevention of the spread of livestock infectious diseases.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regression modeling strategies for optimizing the appropriate size of reserve forces in Republic of Korea","authors":"Hyungbo Sim","doi":"10.37944/jams.v6i2.187","DOIUrl":"https://doi.org/10.37944/jams.v6i2.187","url":null,"abstract":"This study focuses on the size of reserve forces and the factors affecting their size. As a result of analyzing theory and prior research, we identified the relations between standing and reserve forces. To minimize the problem of relations, we used a two-stage least squares estimate with simultaneous equations as the analytical method used. We utilized the 2022 cross-sectional data points and analyzed the sample by dividing it into 69 countries and 38 countries with reserve forces. In 38 countries, the reserve force size derived from regression analysis was 2.2 million people, and the standing force size was 470,000 people. The empirical analysis shows that 2.2 million reserve forces solved the single-equation estimation problem caused by the two-way causal relationship between reserve force size and standing force size through simultaneous equations, which further improved the consistency of the estimated coefficients. In terms of size, it was smaller than the 2.75 million presented in Defense Reform 2.0, which seems to be due to the analysis of countries with relatively capital-intensive military structures compared with Korea. Various factors are expected to further increase the size of future reserve forces: the rapid decline in the nation’s birth population; the proportion of defense spending to the government’s budget; the reserve forces, which have been further expanded by Defense Reform 2.0; and the prospect of a reduction in standing forces expected by Defense Innovation 4.0. Therefore, the size of future appropriate reserve forces will increase further than the current appropriate level, making it necessary to determine policies related to reserve forces and develop appropriate measures for procurement.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study on the differences in the perceived importance of jet fighter performance improvement factors","authors":"Youngjae Cho, Soonhong Min, Sehwan Lim, Kyunghwan Choi","doi":"10.37944/jams.v6i2.192","DOIUrl":"https://doi.org/10.37944/jams.v6i2.192","url":null,"abstract":"The rapid advancement in software-based technology has significantly shortened product life cycles, leading to the proliferation of new products. However, the high initial investment makes it practically impossible for armed forces to rapidly replace existing weapons systems with new ones due to technological obsolescence. A more realistic alternative is to focus on performance improvements (or weapon upgrades) in existing systems. The challenge lies in making the right upgrades with the right technology at the right cost and time given the limited defense budget. Unfortunately, weapons upgrade decisions have mostly been based on costs and politically considered budget allocations to different branches of the armed forces rather than by considering a comprehensive range of decision factors. In light of the escalating national security threats, it is necessary to maximize the cost-effectiveness of weapons upgrade projects and effectively address rising national security challenges. The objective of this study is to develop a performance improvement Decision Index that quantifies the opinions of field-operating experts. Field experts are believed to possess the necessary expertise to select the appropriate fighter types, technologies, and upgrade timings, making it beneficial to factor in their opinions to determine what, how, and when to upgrade. Specifically, this study aims to establish weighted values for major decision factors regarding fighter performance improvement programs in the Republic of Korea Air Force. To achieve this, we collected survey data from 134 active-duty pilots and maintenance, operations, and repair (MRO) personnel from major fighter wings of the Republic of Korea Air Force and analyzed the data using the Fuzzy-AHP (Analytical Hierarchy Process). The analysis results indicate that the highest weighted value is given to the “relative (fighter) performance”against hostile nations, followed by “operating rate,” “durability,” “performance improvement cycle,” and “budget.” Furthermore, this study identified perceptual differences among field experts—particularly between pilots and MRO personnel—regarding the importance of relative performance, budget, performance improvement intervals, and operating rates of different fighter types. The proposed performance improvement index aims to provide a quantitative tool that incorporates field experts’ opinions into the decision-making process to upgrade weapons, facilitating balanced decisions and departing from a policymaker-centered approach. This balanced approach to weapons upgrade decisions will contribute to maximizing cost-effectiveness and, eventually, enhancing combat readiness.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of recently reported Ricin detection techniques focusing on combined immunoassay detection with abrin and saxitoxin in human plasma","authors":"Seungmin Kang, Seonhee Kim, David G. Churchill, Kang Ku, Yoonjeong Jang","doi":"10.37944/jams.v6i2.191","DOIUrl":"https://doi.org/10.37944/jams.v6i2.191","url":null,"abstract":"Increasing non-traditional threats from biological or chemical weapons, the Organisation for the Prohibition of Chemical Weapons (OPCW) have tried to perform the preliminary analysis of biotoxin sample to standardize analysis methods and strengthen analytical capabilities among OPCW member countries. With the changes of new analysis, ROK CBRN Defense Research Institute (CDRI) established enzyme-linked immunosorbent assay (ELISA) and cytotoxicity analysis methods for ricin, abrin, and saxitoxin through the OPCW exercise on Biotoxin sample analysis. Thus, this study aims to established analytical methods (ELISA and cytotoxicity analysis) for the biological toxins called ricin, abrin and saxitoxin according to recent OPCW Biotoxin detection exercise. In particular, to refine practical and effective methods of biological analysis, we reviewed recent research on scientific analysis of ricin as a potential bioterror weapon, letter with ricin sent in White House, and suggested future agendas for preparedness testing.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a lifetime evaluation system and lifetime prediction method for GaN RF semiconductors used in manned and unmanned weapon systems","authors":"Youngrack Choi, Yunho Kang, Hyounggook Kim","doi":"10.37944/jams.v6i2.208","DOIUrl":"https://doi.org/10.37944/jams.v6i2.208","url":null,"abstract":"The aim of this study is to develop a testing system that applies RF (Radio Frequency) stress to predict the lifespan of GaN RF semiconductors, a subject of numerous ongoing domestication studies. Additionally, the study proposes an approach that considers the complex effects of degradation mechanisms in predicting lifespan. When testing the longevity of communication semiconductors, it’s essential to apply RF-input to replicate real-world conditions. The system we developed applies wideband, high power RF stress to individual samples. It monitors RF characteristic changes in real-time and provides independent control of temperature and voltage stress for each sample. This ensures both effective lifespan tests and real-time tracking of semiconductor degradation patterns. Unlike traditional GaAs semiconductors, GaN ones exhibit the compounded influence of degradation mechanisms during RF operation. Therefore, a new lifespan estimation method that identifies the IV characteristic parameters for each degradation mechanism and deduces a relationship between the DC-accelerated life test and the RF-accelerated life test was proposed. The proposed method is significant in that it provides foundational data necessary for the systematic planning of semiconductor reliability testing and the direction of test equipment development. If lifespan tests proceed using this proposed method and data related to degradation mechanisms is derived, it is anticipated to positively impact the future reliability improvement of GaN RF semiconductors.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technological trends in wheeled armoured vehicle from patent analysis","authors":"Jina Kwon, Gakgyu Kim, Yongju Cho, Kyoungchan Won","doi":"10.37944/jams.v6i2.193","DOIUrl":"https://doi.org/10.37944/jams.v6i2.193","url":null,"abstract":"This study analyzed the domestic and foreign patent applications and technology trends of wheeled armored vehicles. Patents for wheeled armored vehicles have been steadily filed since 2009. As the technology development of armoured vehicles has achieved maturity, this technology has entered stabilization period. The scope of patent technology search is to select patent documents from the five major patent application countries that have applied for a large number of patents globally in both quantity and quality, and the search focused on patents published and registered between 1990 and August 2019 using the WIPS ON program. In particular, the main technologies of wheeled armored vehicles, such as protection, mobility, firepower, and body technology, were analyzed. Technological trend data from patents can be used to create requirements for weapons systems. If technology trends are not sufficiently reflected when raising requirements for a weapon system, problems such as obsolete technology development and lack of operational effectiveness may occur, if an excessive required operational capability (ROC) is set without considering the technology, there is a risk that the target performance may not be reached, costs may be incurred and additional time may be needed. So, for the development of weapon systems, it is necessary to analyze the trends of major technologies and find promising technologies in the long term and of wheeled armored vehicles and the latest development trends of major countries are investigated, as well as the technical information necessary for the establishment of the maneuvering system, which is the cornerstone of Army TIGER 4.0.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"North Korea’s reaction to ROK-U.S. Joint Military Exercises and negotiation behavior","authors":"Ankook Yoon","doi":"10.37944/jams.v6i2.180","DOIUrl":"https://doi.org/10.37944/jams.v6i2.180","url":null,"abstract":"North Korea unilaterally suspended inter-Korean dialogue several times under the pretext of the ROK-US combined military exercise. This study aims to reveal that North Korea intends to engage in negotiating behavior to secure leverage in negotiations. To this end, this study analyzed the cases of inter-Korean negotiations during the ROK-US combined military exercise by dividing into cases of inter-Korean negotiations and cases of normal progress. The ROK-US combined military exercises were limited to large-scale joint exercises (such as FS and UFS). We set the analysis period was divided into Kim Il-sung, Kim Jong-il, and Kim Jong-un’s reign in consideration of the influence of North Korea’s supreme leaders. As a result, we derived the following four lessons. First, North Korea carried out inter-Korean negotiations even during the same ROK-US combined military exercise period or sometimes engaged in inconsistent negotiation behavior. Second, North Korea used inter-Korean negotiations, which were suspended during the joint military exercise, as a means of buying time by resuming them after the military exercise, but after a considerable period of time. Third, North Korea tends to suspend inter-Korean negotiations more than it does during the ROK-US combined military exercise since its first nuclear test in 2006. Based on these four lessons, we believe that North Korea has used the ROK-US combined military exercise as a leverage for negotiations.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of instructor’s coaching behavior in the military educational environment on self-directedness in learning of cadets at Korea Army Academy at Yeong-cheon (KAAY)","authors":"Hyeseon Seok, Yongkwan Kang, Donghyun Ahn","doi":"10.37944/jams.v6i2.200","DOIUrl":"https://doi.org/10.37944/jams.v6i2.200","url":null,"abstract":"The purpose of this study is to test the effects of instructor’s coaching behavior in the military education and training on self-directedness and learning outcome of cadets. To this end, the self-report questionnaires was used to collected data from 409 cadets in the 4th grade of the KAAY in the six-week military education and training from July to August 2022. The collected data were analyzed using Structural Equation Modeling (SEM). The result revealed that the instructor’s coaching behavior had a significant effect on the self-directed learning of cadets and the learning outcomes of cadets. We also found self-directedness in the learning of cadets mediated the instructor’s coaching behavior and learning outcomes. The findings could help to pay attention to the instructor’s coaching behavior as a strategy to foster self-direction in the learning of cadets.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness analysis of a hard-kill underwater defense system for surface warships against wake-homing torpedo attack","authors":"Myoungin Shin, Wooyoung Hong, Jinho Lee","doi":"10.37944/jams.v6i2.209","DOIUrl":"https://doi.org/10.37944/jams.v6i2.209","url":null,"abstract":"We conducted simulations to analyze the effects of a hard-kill-type underwater defense system that defends friendly warships against an enemy wake-homing torpedo. Assuming that the enemy torpedo is a wake-homing torpedo, our surface warship detours to the prespecified evasive course by firing a hard-kill-type system, which is modeled as a passive acoustic homing-torpedo, to attack the enemy torpedo. We analyzed the effectiveness of a warship’s survival probability via Monte Carlo simulation, given the probabilistic angles of the launched torpedoes, to compare two cases where one used only evasive maneuvering and the other used the hard-kill-type underwater defense system with evasion at the same time. By changing the maximum torpedo detection range of a warship and the torpedo’s initial location, we observed that the resulting survival probability of a warship was above 61% with a hard-kill-type defense system, whereas it remained at 34% without a hard-kill defense system, the necessity of a hard-kill underwater defense system, especially against wake-homing torpedoes.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technology trends in deep learning networks for real-time object detection in drone environment","authors":"Jonghyeon Mun, Chaebong Sohn","doi":"10.37944/jams.v6i2.220","DOIUrl":"https://doi.org/10.37944/jams.v6i2.220","url":null,"abstract":"With the recent announcement of the Defense Innovation 4.0 Basic Plan by the Ministry of National Defense, the role and operational scope of drones are expanding as a key force in AI-based, unmanned, and autonomous systems. Consequently, the significance of real-time object detection technology is emphasized as drones take on diverse missions, including delivering, analyzing, and assessing real-time, target-related information. The emergence of recent deep learning has led to substantial advancements in the field of computer vision, particularly in object detection. Deep learning-based object detection is actively being researched, with a focus on algorithms suited for embedded and mobile environments such as drones. This research predominantly aims to develop deep learning-based object detection models that ensure real-time performance and accurately identify objects’ various forms and sizes. Recent object-detection models have been categorized into backbone networks, neck networks, and head networks. By utilizing these three network components, design considerations can be tailored to fulfill the requirements of drone operations. In this paper, we investigate the technology trends of deep learning network models that can be loaded into drones for real-time object detection. Thus we contribute to strengthening effective drone operation in military operations and supporting research and decision-making processes.","PeriodicalId":32966,"journal":{"name":"seonjingugbangyeongu","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136025020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}