An Application of a Hybrid Genetic Algorithm on Missile Interceptor Allocation Problem

한현진,Han, Hyun-Jin Military Operations Research Society of Korea 2009 한국국방경영분석학회지 Vol.35 No.3

A hybrid Genetic Algorithm is applied to military resource allocation problem. Since military uses many resources in order to maximize its ability, optimization technique has been widely used for analysing resource allocation problem. However, most of the military resource allocation problems are too complicate to solve through the traditional operations research solution tools. Recent innovation in computer technology from the academy makes it possible to apply heuristic approach such as Genetic Algorithm(GA), Simulated Annealing(SA) and Tabu Search(TS) to combinatorial problems which were not addressed by previous operations research tools. In this study, a hybrid Genetic Algorithm which reinforces GA by applying local search algorithm is introduced in order to address military optimization problem. The computational result of hybrid Genetic Algorithm on Missile Interceptor Allocation problem demonstrates its efficiency by comparing its result with that of a simple Genetic Algorithm.

IoT Sensor가 연결된 국방정보통신망의 사이버보안 연구

한현진,박대우,Han, Hyun-Jin,Park, Dea-Woo 한국정보통신학회 2020 한국정보통신학회논문지 Vol.24 No.6

IoT(Internet of Things)는 센서 기술의 발전과 고속의 통신 인프라를 바탕으로 네트워크에 연결되는 단말의 수가 사람의 수보다 더 많아지고 있고 그 증가도 매우 빠르다. 기존 유선부터 무선네트워크까지 연결되는 IoT의 수가 증가하면서 동시에 사이버 위협도 증가하고 있다. 국방분야도 작전, 군수, 기지방어, 정보화 등 다양한 분야에서 IoT의 필요성은 증가하고 있다. PC/서버의 정보보호체계와는 다르게 정보보호가 취약한 IoT Sensor가 네트워크에 증가함에 따라 사이버 위협도 증가하고 있어 국방정보통신망(이하 국방망)을 보호하기 위한 플랫폼 연구가 필요하다. 본 연구에서는 유·무선 IoT를 국방망에 연결하는 사례를 알아보고 국방망과 접점을 최소화한 보안성이 강화된 IoT 통합 독립 네트워크의 효율적인 연동 설계 방안을 제시하였다. The IoT(Internet of Things) is based on the development of sensor technology and high-speed communication infrastructure, and the number of IoT connected to the network is increasing more than the number of people, and the increase is also very fast. In the field of defense, IoT is being deployed in various fields such as operations, military, base defense, and informatization, and the need is also increasing. Unlike the existing PC/server information protection system, cyber threats are also increasing as IoT sensors, which are vulnerable to information protection, are increasing in the network, so it is necessary to study the platform to protect the defense information and communication network. we investigated the case of connecting wired and wireless IoT to the defense network, and presented an efficient interlocking design method of the IoT integrated independent network with enhanced security by minimizing the contact point with the defense network.

두침경혈 매선요법을 이용한 중풍 편마비 환자 치험 3례

한현진,김민지,장인수,강세영,Han, Hyun-Jin,Kim, Min-Ji,Jang, In-Soo,Kang, Sei-Young 대한한방내과학회 2013 大韓韓方內科學會誌 Vol.34 No.3

Objectives : This study was to report the effect of catgut-embedding therapy on scalp acupoints in stroke patients with hemiparesis. Methods : Three stroke patients with hemiparesis were treated by catgut -embedding therapy on scalp acupoints twice a week. After three weeks, the score of manual muscle test (MMT) and modified Barthel index (MBI) were improved compared with the first examination. Results and Conclusions : After the treatment, MMT and MBI score improved in all three patients. These results showed that catgut-embedding therapy on scalp acupoints is possible to be effective for treating hemiparesis in stroke patients, and further studies should be conducted to provide more valuable information.

센서 노드의 거리 정확도 측정을 위한 ToA기반 RSS보정 방법에 관한 연구

한현진 ( Han Hyun Jin ),조오형 ( Jo O Hyoung ),이현욱 ( Lee Hyun Wook ),권태욱 ( Kwon Tae Wook ) 한국정보처리학회 2008 한국정보처리학회 학술대회논문집 Vol.15 No.2

무선 센서 네트워크는 고정 인프라 없이 센서 노드만으로 정보를 수집하는 네트워크로서 센서들의 위치정보 식별은 매우 중요하다. 센서 노드간 거리 측정은 신호의 도착시간차(Time of Arrival: ToA), 신호세기(Received Signal Strength: RSS), 신호각도(Angle of Arrival: AoA)에 기반을 둔 방법 등이 있다. 무선 센서 네트워크에 배치되어 있는 각 센서 노드간 정확한 거리 식별을 위해 기존의 거리 측정 방법을 보완하여 거리 오차를 줄이는 ToA기반의 RSS보정 방법을 제안한다. 구체적으로 초음파를 통한 거리측정 값에 맵(RF-MAP)을 통해 보정한 RSS값을 가중치로 보정하여 기존의 거리 측정 방법보다 측정오차를 줄였다. 실험을 통해 제안한 방법은 기존 ToA보다 실내(5m×7m)에서 평균 0.1cm, 실외(10m×10m) 평균 0.6cm 측정 오차를 줄일 수 있음을 확인 할 수 있었다.

The impact of meteorological disasters on excess utilization of health service of external injury patients

Hyun Jin Han(한현진),Jong-hun Kim(김종헌),Hae-Kwan Cheong(정해관) 환경독성보건학회 2014 한국독성학회 심포지움 및 학술발표회 Vol.2014 No.11

응집을 이용한 인의 제거에 급속혼화강도 및 응집제 주입량이 미치는 영향

한현진(Hyun-Jin Han),문병현(Byung-Hyun Moon) 한국청정기술학회 2012 청정기술 Vol.18 No.4

본 연구는 교반강도 및 응집제 주입량의 변화에 따라 플럭의 성장특성이 인의 제거에 미치는 영향을 파악하고자 수행되었다. 본 연구에서는 Al/P 몰비를 1.0, 1.5와 2.0으로 급속혼화강도 G값을 100, 300과 500 s<SUP>-1</SUP>로 변화시켜 수행하였다. 응집시 발생되는 응집지수(floc size index, FSI)와 크기가 다른 여과지를 이용하여 인의 제거율을 측정하여 성장 특성을 파악하였다. 연구결과 교반강도가 높을수록 용존인의 제거효율이 증가하였으며 Al/P 몰비가 낮을수록 교반강도의 영향이 컸다. T-P의 제거율은 Al/P 몰비 1.0 이하에서는 급속혼화 교반강도가 높을수록 높았으나 Al/P 몰비 1.0 이상에서는 G값 300 s<SUP>-1</SUP>에서 가장 높은 제거 효율을 나타내었다. Al/P 비 1.0 이하에서는 G값 500 s<SUP>-1</SUP>에서 가장 큰 FSI값을 나타내었으며, Al/P 몰비 1.0 이상에서는 G값 300 s<SUP>-1</SUP>에서 가장 큰 FSI값을 나타내었다. 실제하수처리장 유출수를 대상으로 응집에 의한 인 제거에 Al/P 몰비와 급속혼화 강도의 영향은 인공조제수의 결과와 유사하였다. In this study, the effects of mixing intensity and coagulant dosages on the characteristics of floc growth for phosphorus removal were investigated. The experiments were conducted under Al/P molar ratio of 1.0, 1.5 and 2.0; rapid mixing intensity with G value of 100, 300, and 500 s<SUP>-1</SUP>. The characteristics of floc growth were measured by flocculation index (FSI) and the removal efficiencies of phosphorus by using different size filters. The removal efficiencies of soluble phosphorus increased as Al/P molar ratio and rapid mixing intensity increased. However, the highest removal efficiencies of T-P were observed at G value of 300 s<SUP>-1</SUP>. When Al/P molar ratio was lower than 1.0, the value of FSI at G value of 500 s<SUP>-1</SUP> was the largest. However, when Al/P ratio was larger than 1.0, the value of FSI at G value 300 s<SUP>-1</SUP> was the largest. Effects of mixing intensity and Al/P molar ratio on coagulation for phosphorus removal of synthetic and real wastewater effluent were observed to be similar.

응집공정을 이용한 인제거에서 급속흔화가 응집플럭에 미치는 영향에 관한 연구

한현진 ( Hyun Jin Han ),이동윤 ( Dong Yun Lee ),문병현 ( Byung Hyun Moon ) 한국물환경학회(구 한국수질보전학회) 2011 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2011 No.-

인공신경망을 적용한 직사화기 무기체계의 살상확률(Pk) 산출방법론 연구

장영천,한현진,이기택,송미진,이휘영,김종헌,Jang, Young Cheon,Han, Hyun Jin,Lee, Ki Teak,Song, Mi Jin,Lee, Hwi Yeong,Kim, Jong Heon 한국시뮬레이션학회 2019 한국시뮬레이션학회 논문지 Vol.28 No.1

Until now it has had the limitation of the target in the US JMEM to calculate the Pk with the existing method by our study. In this study, we focused on deriving a method to calculate the Pk of the actual targets except JMEM targets using ANN. We study the initial predictive model of ANN(Artificial Neural Network) from the targets data of the specification and the vulnerable area in the US JMEM(Joint Munitions Effectiveness Manuals), and calculate the actual targets vulnerable area by using this method. Finally, we propose a method to calculate the Pk by applying those data to the existing method of us. 기존 본 연구팀에서 연구한 직사화기 무기효과 산출방법론은 JMEM(Joint Munitions Effectiveness Manuals : 합동탄약효과편람)내(內) 표적에 대해서만 무기효과자료를 산출 가능하다는 제한 사항을 가지고 있었다. 따라서 본 연구에서는 JMEM 이외의 현실적 표적을 추가하여 무기효과자료를 산출하는 방법을 인공신경망(ANN : Artificial Neural Network)을 적용하여 도출하는 데 중점을 두었다. 즉, 미국 JMEM내(內) 표적의 제원과 효과지수인 취약면적(Av : vulnerable area)을 이용하여 인공신경망의 예측모델을 학습시키고, 학습된 예측모델에 현실적 표적의 제원을 적용하여 취약면적을 계산한다. 최종적으로 본 연구팀이 연구한 기존 직사화기 무기효과 산출방법론에 계산된 취약면적을 적용하여 살상확률(Pk)을 계산하는 방법론을 제시하였다.

적석지산(赤石脂散)과 탁리소독음(托裏消毒飮)의 화상치료(火傷治療)효과

이대현,한현진,서의석,정현숙,강세영,장인수,Lee, Dae-Hyun,Han, Hyun-Jin,Seo, Eui-Seok,Jeong, Hyun-Suk,Kang, Sei-Young,Jang, In-Soo 대한한방내과학회 2011 大韓韓方內科學會誌 Vol.32 No.1

Objectives : The present study was conducted to determine whether Jerksukji-san and Tangnisodok-eum have an effect on treatment of burn. Methods : 24 male rats were randomly divided into 4 groups. Burns were created by scalding on the skin surface. Immediately after being burned, the rats of group 1 were applied with silver sulfadiazine ointment topically on the burn wound. The rats of group 2 were applied with Jerksukji-san ointment topically and administrated Tangnisodok-eum orally. The rats of group 3 were applied with Jerksukji-san ointment topically. The rats of group 4 were cleaned with saline solution. All treatments were applied twice a day. After 3 and 7 days the inflammatory cellularinfiltration and epidermal gap were measured. Data were analyzed by one-way ANOVA and Kruskal-Wallis test. Results : The rats of groups 1 and 2 showed a statistically narrow epithelial gap compared with those of groups 3 and 4 on the third and on seventh days (p<0.05). Group 3 showed a statistically narrow epithelial gap compared with group 4 on the third and seventh days (p<0.05). The decrease of inflammatory cellularinfiltration observed in group 2 was bigger than in the other groups (group 2>1>3>4) on the third and seventh days. Conclusions : These results demonstrate that Tangnisodok-eum and Jerksukji-san ointment are effective to treat burn, and it is necessary for clinical study to better ascertain this method.

생물학적 하수처리 유출수의 인 제거를 위한 응집공정의 적정 운전인자 도출

문병현 ( Byung Hyun Moon ),한현진 ( Hyun Jin Han ) 한국수처리학회 2012 한국수처리학회지 Vol.20 No.4

This study investigated to find out optimum operation conditions of coagulation for phosphorus removal using the effluents of actual biological wastewater treatment. Alum was used as coagulant in the experiment. Effects of Al/P molar ratio, rapid mixing intensity and time, which would affect hydrolysis of alum, were investigated. As Al/P molar ratio increased, the concentration of phosphorus in treated wastewater decreased. In order to obtain the phosphorus concentration of 0.1 / ㎎ below, more than 3.0 of Al/P molar ratio was required. Effects of rapid mixing intensity on ℓ phosphorus removal were significant at low Al/P. The removal efficiencies of soluble phosphorus increased when high rapid mixing intensity and short time were applied at Al/P ratio of 1.5. However, the highest removal efficiency T-P was obtained with G of 300 sec-1.