• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.57-65
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• 2021

A hyper-connected intelligence information society is emerging that creates new value by converging IoT, AI, and Bigdata, which are new technologies of the fourth industrial revolution, in all industrial fields. Everything is connected to the network and data is exploding, and artificial intelligence can learn on its own and even intellectual judgment functions are possible. In particular, the Internet of Things provides a new communication environment that can be connected to anything, anytime, anywhere, enabling super-connections where everything is connected. Artificial intelligence technology is implemented so that computers can execute human perceptions, learning, reasoning, and natural language processing. Artificial intelligence is developing advanced technologies such as machine learning, deep learning, natural language processing, voice recognition, and visual recognition, and includes software, machine learning, and cloud technologies specialized in various applications such as safety, medical, defense, finance, and welfare. Through this, it is utilized in various fields throughout the industry to provide human convenience and new values. However, on the contrary, it is time to respond as intelligent and sophisticated cyber threats are increasing and accompanied by potential adverse functions such as securing the technical safety of new technologies. In this paper, we propose a new data modeling method to enable IoT integrated security control by utilizing artificial intelligence technology as a way to solve these adverse functions.

• Journal of Broadcast Engineering
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• v.27 no.1
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• pp.3-12
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• 2022

Image deblurring aims to remove image blur, which can be generated while shooting the pictures by the movement of objects, camera shake, blurring of focus, and so forth. With the rise in popularity of smartphones, it is common to carry portable digital cameras daily, so image deblurring techniques have become more significant recently. Originally, image deblurring techniques have been studied using traditional optimization techniques. Then with the recent attention on deep learning, deblurring methods based on convolutional neural networks have been actively proposed. However, most of them have been developed while focusing on better performance. Therefore, it is not easy to use in real situations due to the speed of their algorithms. To tackle this problem, we propose a novel deep learning-based deblurring algorithm that can be operated in real-time on HD resolution. In addition, we improved the training and inference process and could increase the performance of our model without any significant effect on the speed and the speed without any significant effect on the performance. As a result, our algorithm achieves real-time performance by processing 33.74 frames per second at 1280×720 resolution. Furthermore, it shows excellent performance compared to its speed with a PSNR of 29.78 and SSIM of 0.9287 with the GoPro dataset.

• The Journal of the Convergence on Culture Technology
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• v.10 no.3
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• pp.61-67
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• 2024

Soldiers serving in military units and institutions are subject to strict security policies and technologies because they handle sensitive and confidential information related to national security, so they are likely to experience security stress. The purpose of this study is to recognize the need to manage the security stress of military personnel and to suggest management measures. To this end, a literature study was conducted on 12 KCI(Korean Journal Citation Index) journals dealing with security stress. Since 2016, research on security stress has been conducted mainly through empirical analysis through surveys. Studies related to security stress were divided into studies dealing with factors that affect stress, the relationship between security stress and security compliance intentions, and factors that reduce security stress. In particular, it was confirmed that factors such as organizational justice, organizational technical support, and security feedback can alleviate security stress. Next, by applying the results of this literature study to the defense security environment, we presented security stress management measures for military personnel in terms of improving security-related organizational justice awareness, technical support, and security feedback. The significance of this study is that we recognized the need to manage military personnel's security stress and reviewed practical measures related to this.

• Atmosphere
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• v.33 no.2
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• pp.275-295
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• 2023

In Korea, there are four institutions related to atmospheric science: the university's atmospheric science-related department, the Korea Meteorological Administration (KMA), the ROK Air Force Weather Group, and the Meteorological Industry Association. These four institutions have developed while maintaining a deep cooperative relationship with the Korea Meteorological Society (KMS) for the past 60 years. At the university, 6,986 bachelors, 1,595 masters, and 505 doctors, who are experts in meteorology and climate, have been accredited by 2022 at 7 universities related to atmospheric science. The KMA is carrying out national meteorological tasks to protect people's lives and property and foster the meteorological industry. The ROK Air Force Weather Group is in charge of military meteorological work, and is building an artificial intelligence and space weather support system through cooperation with universities, the KMA, and the KMS. Although the Meteorological Industry Association has a short history, its members, sales, and the number of employees are steadily increasing. The KMS greatly contributed to raising the national meteorological service to the level of advanced countries by supporting the development of universities, the KMA, the Air Force Meteorological Agency, and the Meteorological Industry Association.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1993.05a
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• pp.90-95
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• 1993

수력, 화력, 원자력 다음으로 제 4의 전원으로서 관심의 대상이 되고 있는 연료전지는 연료가 가지고있는 화학에너지를 직접에너지로 변환시키는 점에서 종래의 발전 기술과는 원리적으로 다르며, 카르노(Carnot)사이클에 의한 에너지 변환 효율의 제한을 받지 않기 때문에 효율이 높으며 공해가 없는 특징을 가지고 있다. 연료전지의 발전 방식은 작동 온도, 전해질 등에 의해서 분류되나 현재 실용화단계의 기술은 인산형연료전지 발전이다. 인산형 연료전지의 발전용 연료는 천연가스, 메탄올, 납사 등과 같은 탄화수소 계열의 다양한 연료를 사용할 수 있으며, 이들 연료들을 수소가 많이 함유된 가스로 변환시켜 연료전지에 공급하여야 한다. 연료전지발전시스템 개발은 주로 전력이용 측면에서 천연가스를 개질연료로 사용하는 연구가 주류를 이루었으나, 최근에는 전 세계적으로 대기 공해에 시달리고 있는 도시의 환경개선을 위하여 도심용 버스 및 대형 트럭 등에 응용하기 위한 무공해 수송용 자동차엔진의 개발, 국방용 이동전원 개발 및 100㎾ 미만의 현지설치용 및 낙도용 전원으로서 메탄올을 연료로 한 연료전지의 개발이 활발히 진행되고 있다. 한국에너지기술연구소는 한국전력 기술연구원과 공동으로 1989년부터 1992년까지 본체를 제외한 5.9㎾급 인산형 연료전지 발전시스템 즉, 메탄올 연료 개질장치, 운전자동화 시스템, 배열이용 시스템, 종합 배관 등을 설계 구성하여 발전 플랜트의 운전 특성 연구를 수행하였으며, 본 고에서는 이들 설비들의 운전 특성과 발전 플랜트로서의 효율 특성에 대한 고찰을 수행하였다. 본 시스템은 연료개질기가 연결되고 배열을 이용하는 국내최초의 종합적인 연료전지 발전 시스템으로서 개질된 연료로 운전하였을 경우 본체의 효율은 31.9%, 배열을 회수한 종합발전 플랜트의 효율은 45.2%였다.로서, 흰쥐 유선이 LH의 생성처이면서 동시에 작용처이며 유선에서 합성된 GnRH의 조절하에 국부적인 인자로 작용할 가능성을 시사한다.f variation)가 10% 내외로 만족할 만한 범위에 들었다. 본 실험 방법을 타액과 혈청내 testosterone 농도 측정에 응용하여 RIA의 결과와 비교하여 본 바 상관관계가 타액에서 r=0.969, 혈청에서 r=0.990으로 두 결과가 잘 일치하였다. 본 실험에서 측정된 한국인 여성의 타액내 testosterone농도는 107.7$\pm$12.0 pmol／l이었고, 남성의 타액내 농도는 274.2$\pm$22.1 pmol／l이었다. 이상의 결과로 보아 본 연구에서 정립된 EIA 방법은 RIA를 대신하여 소규모의 실험실에서도 활용할 수 있을 것으로 사려된다.또한 상실기 이후 배아에서 합성되며, 발생시기에 따라 그 영향이 다르고 팽창과 부화에 관여하는 것으로 사료된다. 더욱이, 조선의 ${\ulcorner}$구성교육${\lrcorner}$이 조선총독부의 관리하에서 실행되었다는 것을, 당시의 사범학교를 중심으로 한 교육조직을 기술한 문헌에 의해 규명시켰다.nd of letter design which represents -natural objects and was popular at the time of Yukjo Dynasty, and there are some documents of that period left both in Japan and Korea. "Hyojedo" in Korea is supposed to have been influenced by the letter design. Asite- is also considered to have been "Jap

• Convergence Security Journal
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• v.22 no.2
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• pp.131-141
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• 2022

Future battlefield domains are expanding to ground, sea, air, space, and cyber, so future military operations are expected to be carried out simultaneously and complexly in various battlefield domains. In addition, the application of convergence technologies that create innovations in all fields of economy, society, and defense, such as artificial intelligence, IoT, and big data, is being promoted. However, since the current Korean military C4I system manages warfighting function DBs in one DB server, the efficiency of combat performance is reduced utilization and distribution speed of data and operation response time. To solve this problem, research is needed on how to apply the 4th industrial revolution technologies such as AI, IoT, 5G, big data, and cloud to the Korean military C4I system, but research on this is insufficient. Therefore, this paper analyzes the problems of the current Korean military C4I system and proposes to apply the 4th industrial revolution technology in terms of operational mission, network and data link, computing environment, cyber operation, interoperability and interlocking capabilities.

• Maritime Security
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• v.1 no.1
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• pp.215-240
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• 2020

In 2017, the U.S. DARPA coined 'mosaic warfare' as a new way of warfighting. According to the Timothy Grayson, director of DARPA's Strategic Technologies Office, mosaic warfare is a "system of system" approach to warfghting designed around compatible "tiles" of capabilities, rather than uniquely shaped "puzzle pieces" that must be fitted into a specific slot in a battle plan in order for it to work. Prior to cover mosaic warfare theory and recent development, it deals analyze its background and several premises for better understanding. The U.S. DoD officials might acknowledge the current its forces vulnerability to the China's A2/AD assets. Furthermore, the U.S. seeks to complete military superiority even in other nation's territorial domains including sea and air. Given its rapid combat restoration capability and less manpower casualty, the U.S. would be able to ready to endure war of attrition that requires massive resources. The core concept of mosaic warfare is a "decision centric warfare". To embody this idea, it create adaptability for U.S. forces and complexity or uncertainty for the enemy through the rapid composition and recomposition of a more disag g reg ated U.S. military force using human command and machine control. This allows providing more options to friendly forces and collapse adversary's OODA loop eventually. Adaptable kill web, composable force packages, A.I., and context-centric C3 architecture are crucial elements to implement and carry out mosaic warfare. Recently, CSBA showed an compelling assessment of mosaic warfare simulation. In this wargame, there was a significant differences between traditional and mosaic teams. Mosaic team was able to mount more simultaneous actions, creating additional complexity to adversaries and overwhelming their decision-making with less friendly force's human casualty. It increase the speed of the U.S. force's decision-making, enabling commanders to better employ tempo. Consequently, this article finds out and suggests implications for Korea armed forces. First of all, it needs to examine and develop 'mosaic warfare' in terms of our security circumstance. In response to future warfare, reviewing overall force structure and architecture is required which is able to compose force element regardless domain. In regards to insufficient defense resources and budget, "choice" and "concentration" are also essential. It needs to have eyes on the neighboring countries' development of future war concept carefully.

• Journal of Navigation and Port Research
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• v.37 no.1
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• pp.9-14
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• 2013

The e-navigation has been being developed in IMO is a sort of strategy to provide user-oriented services for safe navigation and environmental protection based on the architecture and its related services complying with the user needs. At NAV $57^{th}$ meeting in 2011, the overarching e-navigation architecture was approved which represent overall relationship only between onboard and ashore elements, so more detail technical architecture for each element should be developed for implementation in view of services and systems. Considering the continuous and iterative verification of e-navigation development process required by IMO, the relationship and traceability should be took in consideration between the outcome of e-navigation process and the element of the architecture. In this paper, we have surveyed literarily the user needs, result of gap analysis and practical solutions to address them and defined the architecture elements and their relationship considering the three kinds of views of DoDAF(Architecture Framework) of US department of Defence, in result, proposed the e-navigation shipboard technical architecture.

• Proceedings of the Materials Research Society of Korea Conference
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• 2009.11a
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• pp.24.2-24.2
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• 2009

Indium Antimonide(InSb)는 $3{\sim}5\;{\mu}m$대 적외선 감지영역에서 기존 HgCdTe(MCT)를 대체할 물질로 각광받고 있다. 1970년대부터군사적 용도로 미국, 이스라엘 등 일부 선진국에서 연구되기 시작했으며,이온주입, MOCVD, MBE 등 다양한 공정을 통해 제작되어 왔다. InSb 적외선 감지소자는 $3{\sim}5{\mu}m$대에서 HgCdTe와 성능은 대등한데 반해, 기판의 대면적화와 저렴한 가격, 우주공간 및 야전에서 소자 동작의안정성 등으로 InSb적외선 감지기는 냉각형 고성능 적외선 감지영역에서 HgCdTe를 대체해 가고 있다. 하지만 InSb는 77 K에서 0.225eV의 작은 밴드갭을 갖고 있기 때문에 누설전류로 인한 성능저하가 고질적인문제로 대두되었고, 이를 해결하기 위한 고품질 절연막 연구가 InSb적외선 수광 소자 연구의 주요이슈 중 하나가 되어왔다. 그 동안 PECVD, photo-CVD, anodic oxidation 등의 공정을 이용하여 $SiO_2$, $Si_3N_4$, 양극산화막(anodic oxide) 등 다양한 절연막에 대한 연구가 진행되었고[1,2], 절연막과 반도체 사이 계면에서의 열확산을 억제하여 계면트랩밀도를 최소화하기 위한 공정개발이 이루어졌다[3]. 하지만 InSb 적외선 감지기술은 국방 및 우주개발의 핵심기술중 하나로 그 기술의 이전이 엄격히 통제되고 있으며, 현재도 미국과 이스라엘, 일본, 영국 등 일부 선진국 만이 기술을 확보하고 있고, 국내의 경우 연구가 매우 취약한 실정이다. 따라서 본 연구에서는 InSb 적외선 감지기의 암전류를 제어하기 위한 낮은 계면트랩밀도를 갖는 절연막 증착 공정을 찾고자 하였다. 본 연구에서는 n형 (100) InSb 기판 ($n=0.2{\sim}0.85{\times}10^{15}cm^{-3}$ @ 77K)에 PECVD를 이용하여 $SiO_2$, $Si_3N_4$ 등을 증착하고 절연막으로서 이들의 특성을 비교 분석하였다. $SiO_2$는 160, 200, $240^{\circ}C$에서 $Si_3N_4$는 200, $300^{\circ}C$에서 증착하였다. Atomic Force Microscopy(AFM) 사진으로 확인한 결과, 모든 샘플에서표면거칠기가 ~2 nm의 평탄한 박막을 얻을 수 있었다. Capacitance-Voltage 측정(77K)을 통해 절연막 특성을 평가하였다. $SiO_2$와 $Si_3N_4$ 모두에서 온도가 증가할수록 벌크트랩밀도가 감소하는 경향을 볼 수 있었는데, 이는 고온에서 증착할 수록 박막 내의 결함이 감소했음을 의미한다. 반면계면트랩밀도는 온도가 증가함에 따라, 1011 eV-1cm-2 대에서 $10^{12}eV^{-1}cm^{-2}$ 대로 증가하였는데, 이는 고온에서 증착할 수 록 InSb 표면에서의 결함은 증가하였음을의미한다. 암전류에 큰 영향을 주는 것은 계면트랩밀도 이므로, $SiO_2$와 $Si_3N_4$ 모두 $200^{\circ}C$이하의 저온에서 증착시켜야 함을 확인할 수 있었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.386-393
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• 2018

The Korean military supplies industry tends to become limited in terms of its development to specific areas in line with strategic promotion policies of the local private direct industrial site. However, the relation between base and small cluster is getting lower of the local industrial site. In this study, information related to authorized test reports for munitions was collected through the military quality information system and subjected to social network analysis(SNA). SNA was performed through the relationships among defense quality assurance agencies, test institutions, contracts and cooperative firms through UCINET's Two-Mode Network. In the field of weapon systems, the median technology industry, and the test analysis dependent are high in Seoul, so the analysis revealed that strengthening the infrastructure for test analysis is needed. Also, it was deemed necessary for government-driven political support. Besides, the field support system was efficiently utilizing a relatively local test analysis. It was analyzed that they are overcoming the regional boundaries of small clusters by strategically changing their contract and cooperative firms' status. The research found some spatial inconsistencies between base and small clusters in the military supplies industry, and it was judged that a political suggestion was needed.