• 한국항행학회논문지
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• 제26권2호
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• pp.47-53
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• 2022

최근 국방 기술이 발달함에 따라 다양한 항공기 무장/장착물이 국내에서 개발되고 있다. 그 중에서 항공기 발사용 순항 유도무기(유도탄)는 다양한 시험을 통해서 신뢰성 및 안전성을 확보한 후 항공기에 장착할 수 있다. 항공기로부터 분리된 유도탄은 항공기와 충돌을 회피하기 위해서 지정된 시간에 날개의 구속을 해제하고, 지정된 방향으로 날개를 제어해야한다. 이를 확인하기 위해서 안전 분리 절차에 따라 MIL-STD-1760 신호를 제어하고, 구속해제 성능을 검증할 수 있는 점검 시스템이 필요하다. 특히, 점검 시스템은 구속해제를 위한 파이로 회로를 점검하는 기능과 MIL-STD-1760 신호를 제어해서 구동 성능을 점검하는 기능이 필요하다. 또한, 항공기로부터 분리된 환경을 유도탄에 모의할 수 있어야한다. 본 논문은 지상에서 유도탄에 장착된 파이로 회로 및 구동 성능을 안전 분리 절차에 따라 검증할 수 있는 점검 시스템을 제시하였고, 비행시험을 통해서 항공기로부터 정상적으로 분리되는 것을 확인할 수 있었다.

• 인터넷정보학회논문지
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• 제22권6호
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• pp.71-81
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• 2021

본 논문은 미국 등 선진국에서 적용하고 있는 무기체계 전 수명주기 동안에 사이버보안을 향상 시킬수 있는 방안에 대해 현재까지 진행되고 있는 연구에 대해 알아보고, 국내 무기체계 획득시의 제한사항을 분석하여 효과적인 보안평가 방안을 제시하였다. 국내 실정에 맞는 사이버보안 시험평가 방안에 임무 기반의 위험평가를 획득 전 단계에서 일관성있게 수행함으로써 주요 의사결정 조직에 주요한 정보를 적시에 제공하여 의사결정을 지원하고, 사이버보안 측면에서 식별된 취약점에 대해 보호대책을 검증할 수 있도록 교전규칙을 설정하여 모의침투를 수행하는 방안을 제안하였다. 또한 제안하는 사이버보안 시험평가 체계를 국내 무기체계 시험평가와 비교 평가를 수행하였다. 이를 통하여 지금까지 진행된 사이버보안 시험평가체계 연구에 임무 기반의 위험평가 요소를 접목하여 획득 사업간 적시에 위험을 식별하여 주요 의사결정을 지원하는 역량을 보완하였다.

• Journal of Radiation Protection and Research
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• 제6권1호
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• pp.1-7
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• 1981

This report presents the results of the environmental radiation program at Korea Advanced Energy Research Institute (KAERI) ($37^{\circ}38'N,\;127^{\circ}05'E$) and its surroundings for the last two decades (January, 1961 through December, 1980). In the 1960s, the monthly mean levels of environmental external radiation encountered ranged from a low of 14.2 microroentgen per hour to a high of 42.2 microroentgen per hour with a mean of 21.7 microroentgen per hour, while in 1970s it ranged from a low of 12.4 microroentgen per hour to a high of 40.8 microroentgen per hour with a mean of 20.4 microroentgen per hour. It may, therefore, be said that environmental radiation dose rates remained almost unchanged for the two decades except for the second half of 1960s and the first half of 1970s during which the off-site and on-site patterns were frequently unlike in form and intensity with appreciable differences between average values. Particular results of interest with respect to the effects of the fallout gamma dose rate on environmental radiation show that elevated levels were encountered in association with the deposits of fresh debris from Chinese and Russian nuclear weapons tests in particular.

• 경영과학
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• 제26권3호
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• pp.157-167
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• 2009

Technology transition from defense technology to weapon system is an important process for defense acquisition program. Many countries such as USA, UK, Australia and Republic of Korea use technology readiness level (TRL) as a tool for technology transition by identifying critical technology elements (CTEs) and assessing the technology maturity. In this paper we review a transition process for the defense acquisition. Then we suggest a method to evaluate system's TRL using each component TRL and integration readiness level (IRL) between each technologies. We apply the method to an ACTD project. A result show that technology maturity is influenced by integration between technologies.

• International Journal of Advanced Culture Technology
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• 제7권3호
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• pp.134-142
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• 2019

As the 4th industry has been widely distributed, there is a need for a process of real-time image recognition in various fields such as identification of company employees, security maintenance, and development of military weapons. Therefore, in this paper, we will propose an algorithm that effectively recognizes a test object by comparing it with the DB model. The proposed object recognition system first expresses the outline of the test object as a set of vertices with the distances of predefined length or more. Then, the degree of matching of the structures of the two objects is calculated by examining the distances to the outline of the DB model from the vertices constituting the test object. Because the proposed recognition algorithm uses the outline of the object, the recognition process is easy to understand, simple to implement, and a satisfactory recognition result is obtained.

• International Journal of Advanced Culture Technology
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• 제12권2호
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• pp.318-325
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• 2024

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.

• International Journal of Advanced Culture Technology
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• 제12권2호
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• pp.281-285
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• 2024

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.

• 한국산학기술학회논문지
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• 제14권8호
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• pp.3602-3610
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• 2013

현대 무기체계는 첨단화와 복잡성의 증가로 시스템개발 실패 사례가 빈번하게 발생하고 있다. 사례분석결과 원인은 원래의 시스템 운용개념을 충족시키지 못하거나 미성숙 기술의 적용 등으로 파악되었다. 이에 방위사업청에서는 무기체계개발시 핵심요구성능으로서 작전운용성능의 충족을 요구하고 있다. 한편 시스템개발시의 위험관리 방법중의 하나로서 기술성숙도 평가가 사용되어 왔는데, 이것은 개별기술에 대한 평가방법이므로, 시스템 수준에서의 기술간 통합에 대해서는 미흡하다. 이를 보완하기 위해 시스템 성숙도 평가 모델이 제시되었고, 이와는 별도로 시스템개발의 난이도의 도입을 통한 리스크 관리 모델이 제시되었다. 하지만 기술간 통합의 효과와 시스템개발 난이도를 동시에 고려한 모델은 제시되지 않았다. 또한 무기체계개발의 궁극적인 목표인 작전운용성능 충족의 관점에서 도출된 평가모델은 제시되지 못하였다. 따라서 본 연구에서는 무기체계개발에서 작전운용성능을 충족시키면서 리스크 관리를 수행하기 위한 방법으로, 요소기술간 통합과 시스템개발 난이도를 동시에 고려한 시스템 성숙도 평가 모델을 구축하였다. 또한 무기체계 연구개발단계에서 개선된 시스템 성숙도 평가모델을 적용할 수 있는 방법을 제시하였다.

• 한국군사과학기술학회지
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• 제17권2호
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• pp.235-247
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• 2014

Based on two dimensional model partition method proposed in Part 1, Part 2 provides detailed model specification and implementation. To mathematically delineate a model's behaviors and interactions among them, we extend the DEVS (Discrete Event Systems Specification) formalism and newly propose CE-DEVS (Combat Entity-DEVS) for an upper abstraction sub-model of a combat entity model. The proposed CE-DEVS additionally define two sets and one function to reflect essential semantics for the model's behaviors explicitly. These definitions enable us to understand and represent the model's behaviors easily since they eliminate differences of meaning between real-world expressions and model specifications. For model implementation, upper abstraction sub-models are implemented with DEVSim++, while the lower sub-models are realized using the C++ language. With the use of overall modeling techniques proposed in Part 1 and 2, we can conduct constructive simulation and assess factors about combat logics as well as battle field functions of the next-generation combat entity, minimizing additional modeling efforts. From the anti-torpedo warfare experiment, we can gain interesting experimental results regarding engagement situations employing developing weapons and their tactics. Finally, we expect that this work will serve an immediate application for various engagement warfare.

• 한국군사과학기술학회지
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• 제27권1호
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• pp.116-125
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• 2024

The COVID-19 pandemic is not over despite the emergency use authorization as can see recent COVID-19 daily confirmed cases. The viruses are not only difficult to diagnose and treat due to random mutations, but also pose threat human being because they have the potential to be exploited as biochemical weapons by genetic manipulation. Therefore, it is inevitable to the rapid antibody-based therapeutic platform to quickly respond to future pandemics by new/re-emerging viruses. Although numerous researches have been conducted for the fast development of antibody-based therapeutics, it is sometimes hard to respond rapidly to new viruses because of complicated expression or purification processes for antibody production. In this study, a novel rapid antibody-based therapeutic platform using single B cell sorting method and mRNA-antibody. High immunogenicity was caused to produce antibodies in vivo through mRNA-antigen inoculation. Subsequently, antigen-specific antibody candidates were selected and obtained using isolation of B cells containing antibody at the single cell level. Using the antibody-based therapeutic platform system in this study, it was confirmed that novel antigen-specific antibodies could be obtained in about 40 days, and suggested that the possibility of rapid response to new variant viruses.