• 한국군사과학기술학회지
• /
• 제16권2호
• /
• pp.138-145
• /
• 2013

Airworthiness certification is a government certification for the military aircraft to safely attain, sustain and terminate flight and It is a mandatory process of qualifying the flight safety within the operational boundaries of a military aircraft. To save the manhour, time and cost for applying all the airworthiness certification criteria to the aircraft equipped with flight control switching mechanism development program, an identification of the risk and systematic assessment of risk is analysed. Airworthiness redesign actions so called software switching mechanism for the modified aircraft in the flight technology and electric system area are suggested to reduce the risk hazard index.

• 한국군사과학기술학회지
• /
• 제9권3호
• /
• pp.66-76
• /
• 2006

Sense and Respond Logistics(SARL) is a transformational, network-centric, knowledge-driven concept that enables joint effects-based operations and provides precise, agile support. Sense and respond logistics relies upon highly adaptive, self-synchronizing, and dynamic physical and functional processes. It predicts, anticipates, and coordinates actions that provide competitive advantage across the full range of military operations. In this research paper, we considered the essential prerequisite to introduce the appropriate SARL concept for the future warfare environment into the military logistics support system and also provide the conceptual alternatives to actualize the introduction of SARL.

• 융합보안논문지
• /
• 제14권6_1호
• /
• pp.57-63
• /
• 2014

한반도는 탈냉전이라는 역사적 변화에도 불구하고 냉전적 구조가 해제되지 않고 북한의 대남도발은 계속되고 있다. 북한의 천안함 폭침과 연평도 포격도발은 파국적인 남북관계 초래와 동북아 불안정의 요인으로 작용하고 있다. 북한의 도발은 미국과 한국 및 북한 내부 요인이 북한의 의사결정체계에서 복합적으로 작용하여 군사 비군사적 수단에 의해 자행되고 있다. 북한은 한반도의 적화통일이라는 전략기조을 유지하기 때문에 공세적으로 지속될 수밖에 없을 것이다. 북한의 대외정책은 지속성과 상황에 따라 변화하는 양면성을 지니고 있다. 북한 대외정책의 목표와 이념은 비교적 일관성 있게 지속하고 있지만, 정책전개의 전략 전술과 행동 유형에서는 상당한 변화가 있다. 즉, 지속성은 곧 국가 체제유지와 국가 생존 명분의 문제이며, 변화는 지속성과 명분을 유지시키고 발전하기 위한 전술적 종속개념에 해당한다. 합리적인 시각으로 본다면 북한의 대외정책 기조는 군사력과 핵무기 개발을 생존수단으로 삼아 긴장을 조성하여 외교적, 경제적 보상을 얻는 외교방식을 과감하게 탈피하여야 하며 국제사회에 참여하여 하나의 국가로서 국제관례를 지키는 자세를 견지해야 하나 여러 가지 여건상 기존 대외정책 방향을 고수하고 있다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권7호
• /
• pp.3191-3194
• /
• 2014

Adenocarcinoma of lung has high incidence and a poor prognosis, woith chemotherapy as the main therapeutic tool, most commonly with cisplatin. However, chemotherapy resistance develops in the majority of patients during clinic treatment. Mechanisms of resistance are complex and still unclear. Although annexin play important roles in various tumor resistance mechanisms, their actions in cisplatin-resistant lung adenocarcinoma remain unclear. Preliminary studies by our group found that in cisplatin-resistant lung cancer A549 cells and lung adenocarcinoma tissues, both mRNA and protein expression of annexins A1, A2 and A3 is increased. Using a library of annexin A1, A2 and A3 targeting combined molecules already established by ourselves we found that specific targeting decreased cisplatin-resistance. Taken together, the underlined effects of annexins A1, A2 and A3 on drug resistance and suggest molecular mechanisms in cisplatin-resistant A549 cells both in vivo and in vitro. Furthermore, the study points to improved research on occurrence and development of lung adenocarcinoma, with provision of effective targets and programmes for lung adenocarcinoma therapy in the clinic.

• 안보군사학연구
• /
• 통권3호
• /
• pp.197-242
• /
• 2005

Active catalog is a kind of digital content that enables consumers to test the functions and features of products from their PCs as if they were using it in real life, by simulating the actions and responses of the product. This new type of interactive digital content can be used extensively to make sales personnel training manuals, sales tools, user manuals and user trouble shooting documents. With active catalogs, companies will be able to compare different designs, show actions according to different functions, and evaluate user reaction to new products without having to produce a single physical prototype or mock-up. At the same time, consumers will be able to understand and 'operate' the product and make well-informed purchase decisions. In this paper, we present a visual event-driven modeling tool, PlayMo, for creating active catalogs, analyze the advantages of using PlayMo, describe the event-driven method used by PlayMo and also introduce two enhanced characteristics of the Event Flow Chart with which the events in PlayMo are structured. Interactive digital content by using the PlayMo3D makes easy, simple and effective design for e-learning, e-catalogue, e-marketing/sales, e-prototyping, customer support, etc. Through its application-ready 3D function visualization solution, engineers and designers can rapidly turn a CAD design model into a 3D interactive virtual product, and the effective function prototyping job can be also completed within a minute.

• 해양안보
• /
• 제2권1호
• /
• pp.1-42
• /
• 2021

해양강국 달성을 위한 중국 해군전략의 성격에 대한 공세성 논란이 이어지고 있다. 본 연구는 이러한 논란 속에서 전략의 3요소를 이용, 해양강국 달성을 위한 중국 해군전략의 실체적 성격을 파악하고 이를 통해 차후 중국의 군사적 행동을 전망하는 것을 목적으로 한다. 연구목적을 달성하기 위하여 본 연구는 전략의 3요소와 함께 해군전략의 특수성을 고려하여 연구를 진행하였으며 연구결과 중국의 해군전략은 전체적으로 공세성을 띄고 있으나 각 전략요소 간의 공세성을 추구하는 정도에서는 불균형을 이루고 있었다. 방법적 측면에서는 공세성이 두드러지게 나타났으나, 목표·수단적 측면에서는 해양강국 달성을 위한 주변국과의 협력 필요성과 군사기술·작전지속 능력 부족이라는 제한사항이 존재하였다. 이러한 전략요소 간의 불균형을 통해 도출한 중국의 차후 군사적 행동의 전망은 다음과 같다. ① 당분간 미국과의 전면적 군사충돌의 위험은 낮다. ② 1도련선 내에서는 주변국에게 해군력을 강압의 수단으로 활용하거나 또는 제한적인 군사충돌을 일으킬 수 있다. ③ 영유권 분쟁을 둘러싼 해군력 대치시 미국 및 주변국과 우발적인 군사충돌이 발생할 수 있다.

• 한국국방경영분석학회지
• /
• 제29권2호
• /
• pp.26-44
• /
• 2003

This study Is to forecast the damage of smallpox as a biological weapon and to measure the effect of potential responses (quarantine, vaccination and cure) to the spread of smallpox infection when a smallpox bioterrorism attack occurs. We designed the smallpox spreading simulation model through the literature study on a basis of some existing infectious disease models such as SIR, SEIR model by using Vensim program. In order to evaluate the performance of responses to smallpox, we measure the total infection population, infection sustaining duration, average infection rate and the infection spreading behavior of the smallpox. This study can help those who are related to the bioterrorism forecast the present and possible demage, and take more effective actions for minimizing the damage by smallpox bioterrorism.

• 한국국방경영분석학회지
• /
• 제24권1호
• /
• pp.88-97
• /
• 1998

It is critical to determine the appropriate actions for safe landing of an aircraft in an emergency situation. An expert system can be very useful for this purpose. An expert system specifically for jet fighter $F-\bigcirc\bigcirc$ has been developed. Its knowledge base contains the standard procedures provided by various flight manuals and the expertise of human specialists such as pilots and emergency management personnels. Advising procedures are represented by an IF-THEN format in the developed rule-based expert system. Advises are provided in real time during the entire flight processes of ground, takeoff, inflight, and landing. The developed system would significantly increase the survivability of pilots and aircraft, while decreasing operational costs of emergency management personnels. By modifying the knowledge base, the developed system can also be applied to other types of aircrafts including civilian airlines.

• 한국국방경영분석학회지
• /
• 제30권2호
• /
• pp.108-121
• /
• 2004

This paper deals with a procedure of changing the current inspection & replacement periods for ROKAF aircraft parts. ROKAF is mostly operating aircraft of foreign makes, and takes maintenance actions according to Technical Orders(TO.) published by foreign aircraft manufacturers. Therefore ROKAF inspects and replaces specific parts at the time noticed from T.O.. These inspection and replacement periods are determined by manufacturers according to the standard operating environment and parts' durability. But the standard operating environment Is different from operator's environment. Because of this difference, the inspection and replacement periods have to be changed according to operators' operation environment. It is resonable that the manufacturer, having design materials and life test data of parts, changes those periods together with materials of operators' operation environment. But we have many difficulties in obtaining the design materials and life test data. Then this paper proposes a procedure of changing the periods of aircraft's parts with life data obtained during operating aircraft. For the reliability analysis, a software of RELEST (Reliability Estimation Version 1.0) is used.

• 한국군사과학기술학회지
• /
• 제22권4호
• /
• pp.441-451
• /
• 2019

When a store is launched, the umbilical plug should be separated from the launcher without any physical interference and fragments. In order to satisfy these conditions, an umbilical plug and an umbilical separating device were designed. The plug is separated from the receptacle of the store while moving along inclined planes by the store thrust and the spring force connected from the launcher to the plug. As a result of the prototype test, the hanger on the store collided with the plug. Several tests were conducted after some actions were taken to prevent the collision. However, not only the same phenomenon was repeated, but also fragmentation occurred. In this study, the non-colliding conditions were analyzed through rigid and flexible multi-body dynamics analysis.