• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2005년도 추계학술대회 및 정기총회
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• pp.3-9
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• 2005

The recent notion of Network Centric Warfare (NCW) emphasizes the ability to distribute right information at the right time to maximize the combat effectiveness. Accordingly, in the modern combat system the importance of non-physical element, such as communication system is increasing. However, an NCW-support communication network system is expensive. Therefore, it is essential to develop a proper combat system evaluation method to establish an efficient NCW-support combat system. Traditionally, combat system effectiveness is measured in terms of physical elements such as men and fire power. Obviously, such method is hardly applicable to a modern combat system To overcome this difficulty, we propose an evaluation model based on CA (Cellular Automata) simulation. A set of preliminary combat simulations show that CA simulation may be promising in evaluating non-physical element of a modem combat system.

• 경영과학
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• 제22권2호
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• pp.135-145
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• 2005

The recent notion of Network Centric Warfare (NCW) emphasizes the ability to distribute the right information at the right time to maximize the combat effectiveness. Accordingly, in the modern combat system, the importance of non-physical elements, such as a communication system, is increasing. However, an NCW-support communication network system is expensive. Therefore, it is essential to develop a proper combat system evaluation method to establish an efficient NCW-support combat system. Traditionally, combat system effectiveness is measured in terms of physical elements such as men and fire power, Obviously, such method is hardly applicable to a modern combat system. To overcome this difficulty, we propose an evaluation model based on CA (Cellular Automata) simulation. A set of preliminary combat simulations show that CA simulation may be promising in evaluating non-physical element of a modern combat system.

• 산업경영시스템학회지
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• 제46권4호
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• pp.263-271
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• 2023

In the (3,3) close combat model based on the Lanchester Square Law, this study proposes a plan to optimally allocate residual combat power after the battle to other battlefields. As soon as the two camps of three units can grasp each other's information and predict the battle pattern immediately after the battle began, the Time Zero Allocation of Force (TZAF) scenario was used to initially allocate combat power to readjust the combat model. It reflects travel time, which is a "field friction" in which physical distance exists from battlefields that support combat power to battlefields that are supported. By developing existing studies that try to examine the effect of travel time on the battlefield through the combat model, this study forms a (3,3) combat model, which is a large number of minimum units. In order to achieve the combat purpose, the principle of optimal combat force operation is presented by examining the aspect that support combat power is allocated to the two battlefields and the consequent battle results. Through this, various scenarios were set in consideration of the travel time and the situation of the units, and differentiated results were obtained. Although the most traditional, it can be used as the basic logic of the training or the commander's decision-making system using the actual war game model.

• 항공우주시스템공학회지
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• 제11권6호
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• pp.50-55
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• 2017

본 논문은 란체스터 방정식을 이용하여 우리의 무인전투기(블루군)과 적 무인전투기(레드군) 간의 교전 결과를 예측하였다. 란체스터 법칙은 군단의 전력이 전투원 수에 비례한다는 제1법칙(linear law)과 전투원 수의 제곱에 비례한다는 제2법칙(square law)가 있다. 제1법칙은 게릴라전에 적합한 법칙이고 제2법칙은 전면전에 적합한 법칙으로 알려져 있으며 일반적으로 제2법칙이 많이 쓰인다. 란체스터의 제2법칙을 이용하여 교전 결과를 예측하였다. 교전에서 승리하기 위한 전투손실률 값은 물론 필요 전력수를 추산하였고, 우리 군의 피해를 1대 미만으로 만들기 위한 전력수도 예측하였다. 적 무인전투기와 아군 무인전투기의 전투 대수가 같을 경우 승리를 보장받으려면 전투손실률이 1:1.5 이상이 되어야 한다.

• 한국전산구조공학회논문집
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• 제22권3호
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• pp.251-258
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• 2009

개념설계단계에서 전투차량은 크게 화력성능, 기동성능과 체계의 물리적 특성으로 나누어진다. 본 연구에서는 전투차량체계를 구성하는 3가지 특성 중 화력성능의 최적화로 제한한다. 체계의 개념설계 단계에서 화력성능에 영향을 미치는 주요 인자로 파괴효과에 직접적인 영향을 주는 탄의 중량과 원거리 사격을 고려한 최대사거리를 분석대상으로 선정하였다. 최대 사거리 분석을 위하여 강내탄도와 강외탄도해석은 질량 집중 모델, Le Duc모델과 질점탄도모델을 사용하여 분석하였다. 실험계획법과 회귀분석으로 반응표면식을 구성하고 선정된 인자를 반응표면법으로 최적화하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권4호
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• pp.1679-1691
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• 2016

Successive interference cancellation (SIC) is an effective means of multi-packet reception to combat interference at the physical layer. We investigate the joint optimization issue of channel access and power control for capacity maximization in SIC-enabled wireless networks. We propose a new interference model to characterize the sequential detection nature of SIC. Afterward, we formulize the joint optimization problem, prove it to be a nondeterministic polynomial-time-hard problem, and propose a novel approximation approach based on the genetic algorithm (GA). Finally, we discuss the design and parameter setting of the GA approach and validate its performance through extensive simulations.

• Agribusiness and Information Management
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• 제10권2호
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• pp.18-27
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• 2018

This study aims to confirm the appropriateness of fruit and vegetable sales at military commissaries, with the purpose of enhancing the physical health and morale of military personnel. In order to achieve this objective, we examined the actual conditions of fruit and vegetable sales at military commissaries and analyzed the soldiers' awareness of fruit and vegetable sales through questionnaire surveys. The conclusions of this study are as follows: Firstly, fresh fruits and vegetables were not sold at military commissaries. Secondly, soldiers acknowledged the need for the consumption of fruits and vegetables and strongly expressed the desire for these fresh food products to be sold at military commissaries. Although the ROK Navy privatized military commissaries for the purposes of increasing management efficiency of national defense and strengthening combat power by transferring PX salesclerk soldiers to join combat personnel, this effort produced a negative effect of price increase. The following are proposals for improving this condition: fruit and vegetable products should be introduced to military commissaries through military welfare funds; fresh food markets should be established by closely cooperating with the local community's agricultural producers; processed fruit and vegetable product (dry, frozen, airtight packaged, etc.) sales should be increased; and the privatization of the navy commissaries should be abolished.

• 한국통신학회논문지
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• 제37권4B호
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• pp.269-277
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• 2012

미래의 전장환경이 플랫폼기반 전쟁에서 네트워크기반전쟁으로 변화되고 있다. NCO(Net Centric Operation)는 강력한 네트워크를 기반으로 구성된 그리드를 통하여 전투원 간 정보공유, 상황인식 공유, 의사결정 및 행동의 동기화를 통해 전투력 향상을 구현하기 위한 작전개념이다. 또한, 이러한 작전환경은 물리, 정보, 인지 및 사회도메인으로 구성이 된다. 플랫폼환경에서의 시스템은 대부분이 물리 및 정보도메인과 연관되어 있으며 OSI 7 레이어로 표현이 가능하다. 그러나, OSI 7 레이어로는 인지 및 사회도메인을 포함한 NCW 환경을 표현하는 것에는 제한사항이 있어 NCW 환경을 표현하는 새로운 모델이 필요하다. 본 논문에서는 OSI 7 레이어, NCO 효과분석모델 및 NCW 아키텍처 택사노미를 중점적으로 분석하고 분석된 내용을 바탕으로 NCW환경을 표현할 수 있는 모델을 개발하였다. 이렇게 개발된 모델은 NCW 아키텍처 택사노미에 적용하여 NCW 환경을 표현하고 이를 바탕으로 효과분석 및 군사력 건설(NCW 작전개념, 획득)에 활용이 가능함을 제시하였다.

• Structural Engineering and Mechanics
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• 제81권6호
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• pp.665-675
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• 2022

The safety problems of giant hydraulic structures such as dams caused by terrorist attacks, earthquakes, and wars often have an important impact on a country's economy and people's livelihood. For the national defense department, timely and effective assessment of damage to or impending damage to dams and other structures is an important issue related to the safety of people's lives and property. In the field of damage assessment and vulnerability analysis, it is usually necessary to give the damage assessment results within a few minutes to determine the physical damage (crack length, crater size, etc.) and functional damage (decreased power generation capacity, dam stability descent, etc.), so that other defense and security departments can take corresponding measures to control potential other hazards. Although traditional numerical calculation methods can accurately calculate the crack length and crater size under certain combat conditions, it usually takes a long time and is not suitable for rapid damage assessment. In order to solve similar problems, this article combines simulation calculation methods with machine learning technology interdisciplinary. First, the common concrete gravity dam shape was selected as the simulation calculation object, and XFEM (Extended Finite Element Method) was used to simulate and calculate 19 cracks with different initial positions. Then, an LSTM (Long-Short Term Memory) machine learning model was established. 15 crack paths were selected as the training set and others were set for test. At last, the LSTM model was trained by the training set, and the prediction results on the crack path were compared with the test set. The results show that this method can be used to predict the crack propagation path rapidly and accurately. In general, this article explores the application of machine learning related technologies in the field of mechanics. It has broad application prospects in the fields of damage assessment and vulnerability analysis.