• Title/Summary/Keyword: wartime

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Image Identification Plan for SeJong-City Presidential Archives (세종시 대통령기록관 상설전시 연출을 위한 색채·전시사인 계획)

  • Lee, In-Ho;Lee, Heung-Wu;Kyung, Byung-Pyo;Ryu, Seuc-Ho
    • Journal of the Korea Convergence Society
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    • v.9 no.12
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    • pp.169-174
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    • 2018
  • The museum, run by the archives, should show historical facts about the president through objective records that are not fully evaluated. The wartime atmosphere should maintain solemnity to highlight the evidential value of records about history, but include an interesting element that allows visitors to come comfortably. It would be possible to accommodate 360 viewers at the same time, and it would be an option to limit the number of visitors considering the operation of weekend events and the donor honor hall. In this study, we established and presented an image integration plan centered on the color plan and the signature plan. Although the real image integration plan is a case study that starts with symbols and logos and is conducted through an integrated and systematic system through the basic design and application design system, it is considered to be a meaningful study in terms of practical use.

A Study on adopting cloud computing in the military (국방 클라우드 컴퓨팅 도입에 관한 보안체계 연구)

  • Jang, Worl-Su;Choi, Jung-Young;Lim, Jong-In
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.22 no.3
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    • pp.645-654
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    • 2012
  • The South Korean Defense Ministry is planning and pushing forward to conduct a cloud computing pilot project in 2012. Taking into consideration the high-level security necessary in the military as well as wartime duties, if not designed properly, this project may anticipate severe damage to national security and interest. In particular, despite the fact that vulnerability due to inter-Korean confrontation and regular security-related incidents have been triggered, unconditionally conducting a cloud computing pilot project without reviewing not only violates security regulations but also causes various security-related side effects in and outside South Korea. Therefore, this thesis found conditions for conduct of this project by suggesting duties that can apply cloud computing as well as security technology, administration, post-accident matters and conditions for legally solving cloud computing in the military.

Learning-Backoff based Wireless Channel Access for Tactical Airborne Networks (차세대 공중전술네트워크를 위한 Learning-Backoff 기반 무선 채널 접속 방법)

  • Byun, JungHun;Park, Sangjun;Yoon, Joonhyeok;Kim, Yongchul;Lee, Wonwoo;Jo, Ohyun;Joo, Taehwan
    • Journal of Convergence for Information Technology
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    • v.11 no.1
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    • pp.12-19
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    • 2021
  • For strengthening the national defense, the function of tactical network is essential. tactics and strategies in wartime situations are based on numerous information. Therefore, various reconnaissance devices and resources are used to collect a huge amount of information, and they transmit the information through tactical networks. In tactical networks that which use contention based channel access scheme, high-speed nodes such as recon aircraft may have performance degradation problems due to unnecessary channel occupation. In this paper, we propose a learning-backoff method, which empirically learns the size of the contention window to determine channel access time. The proposed method shows that the network throughput can be increased up to 25% as the number of high-speed mobility nodes are increases.

A Study on the effect of high-performance frequency hopping radio system to next-generation aircraft and improvement Anti-jamming communication (고성능 주파수 도약 공지통신 무전기의 차세대 항공기 적용과 항공기 항재밍 통신장비 개량에 따른 효과 연구)

  • Lee, Kwangyull;Yong, Taeho;Ahn, Seungbeom;An, Kyeongsoo;Jang, Indong;Han, Chulhee
    • Journal of Internet Computing and Services
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    • v.23 no.1
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    • pp.113-124
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    • 2022
  • In wartime conditions, the communication system of military aircraft is exposed to jamming, and it is necessary to mount communication equipment with high anti-jamming performance in order to perform air operations smoothly even in an environment where jamming attempts are made. In this paper, we check in detail the jamming and anti-jamming technology that can be applied to wireless communication, and the data disclosed on the difference in specifications of the next-generation anti-jamming radio with frequency hopping method and the improvement of anti-jamming performance according to these changes. It was briefly analyzed within the scope. In addition, the points to be considered when designing a new domestic aircraft and the possibility of installing the next-generation anti-jamming communication equipment on the currently operating aircraft were confirmed, and the tactical usefulness of improving the anti-jamming capability of the next-generation anti-jamming communication equipment was confirmed.

Conservation Treatment and Structural Characteristics of a Leather Briefcase Used during the Korean War (6·25전쟁 당시 사용된 가죽가방의 보존처리와 구조적 특징)

  • Kang, Hyunsam;Jang, Hanul;Yi, Hyeonju;Gu, Jihye
    • Conservation Science in Museum
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    • v.27
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    • pp.57-66
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    • 2022
  • This study conducted conservation treatment of a briefcase used by a soldier who fought in the Korean War as a member of the United Nations Forces. The zooid characteristics of its main material, leather, were analyzed in collaboration with the researchers at the National Palace Museum of Korea who have conducted relevant research. A plan for conservation treatment was established based on the results of this analysis. The briefcase was made of leather with a wooden frame. The many densely arranged tiny pores in different patterns on the leather's surface suggests calf leather. The wooden frame and leather had suffered deformation over long years of deterioration and thus required conservation treatment to enhance their structural stability. The conservation treatment began with the removal of contaminants from the exterior and interior of the briefcase. The stiffened leather was softened through humidification, and torn or separated areas were restored using cowhide glue. It is expected that the results of this conservation treatment and analysis of the leather material will serve as useful sources for basic research on leather items as well as wartime and military items.

Design of Scenario Creation Model for AI-CGF based on Naval Operations, Resources Analysis Model(I): Evolutionary Learning (해군분석모델용 AI-CGF를 위한 시나리오 생성 모델 설계(I): 진화학습)

  • Hyun-geun, Kim;Jung-seok, Gang;Kang-moon, Park;Jae-U, Kim;Jang-hyun, Kim;Bum-joon, Park;Sung-do, Chi
    • Journal of the Korea Institute of Military Science and Technology
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    • v.25 no.6
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    • pp.617-627
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    • 2022
  • Military training is an essential item for the fundamental problem of war. However, there has always been a problem that many resources are consumed, causing spatial and environmental pollution. The concepts of defense modeling and simulation and CGF(Computer Generated Force) using computer technology began to appear to improve this problem. The Naval Operations, Resources Analysis Model(NORAM) developed by the Republic of Korea Navy is also a DEVS(Discrete Event Simulation)-based naval virtual force analysis model. The current NORAM is a battle experiment conducted by an operator, and parameter values such as maneuver and armament operation for individual objects for each situation are evaluated. In spite of our research conducted evolutionary, supervised, reinforcement learning, in this paper, we introduce our design of a scenario creation model based on evolutionary learning using genetic algorithms. For verification, the NORAM is loaded with our model to analyze wartime engagements. Human-level tactical scenario creation capability is secured by automatically generating enemy tactical scenarios for human-designed Blue Army tactical scenarios.

Control of metal resources and development of substitute materials for building materials by Japan after the Second Sino-Japanese War (중일전쟁 이후 일제의 금속자원 통제와 건축자재 대용품 개발)

  • Hong, Kyung-Hwa;Han, Dong-Soo
    • Journal of architectural history
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    • v.31 no.4
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    • pp.7-16
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    • 2022
  • Since the beginning of the second Sino-Japanese war in 1937, the entire Korean Peninsula has entered a full-fledged wartime system. Japan enacted laws that strongly regulate the distribution of various resources for war, and the same was implemented in Joseon. In particular, as iron, copper, lead, tin, and aluminum were mobilized as raw materials for military supplies such as weapons, private distribution decreased significantly, which had a great impact on the construction industry. As the use of metal such as steel as building materials requires permission from the provincial governor, it has become difficult to supply and demand except for some military facilities. In addition, the Japanese Ministry of Commerce and Industry encouraged research and development and manufacturing to promote the so-called "substitute goods industry" to make up for the shortage of supplies. Products with improved performance through chemical treatment by injecting only a small amount of the same raw material than before or using alternative raw materials have been developed. It was intended to overcome the limitations of lack of raw materials through the chemical industry. In terms of building materials, various substitutes were produced due to the incorporation of petrochemicals and the use of synthetic resins. This trend continued even after the end of the war and served as one of the backgrounds for R&D and production of new materials without returning to the "substitute goods."

A Big Data Analysis of Public Interest in Defense Reform 2.0 and Suggestions for Policy Completion

  • Kim, Tae Kyoung;Kang, Wonseok
    • Journal of East Asia Management
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    • v.4 no.1
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    • pp.1-22
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    • 2023
  • This study conducted a big data analysis study through text mining and semantic network analysis to explore the perception of defense reform 2.0. The collected data were analyzed with the top 70 keywords as the appropriate range for network visualization. Through word frequency analysis, connection centrality analysis, and an N-gram analysis, we identified issues that received much attention such as troop reduction, shortening of military service period, dismantling of the border area unit, and returning wartime operational control. In particular, the results of clustering words through CONCOR analysis showed that there was a great interest in pursuing the technical group, concerns about military capacity reduction, and reorganization of manpower structure. The results of the analysis through text mining techniques are as follows. First, it was found that there was a lack of awareness about measures to reinforce the reduced troops while receiving much attention to the reduction of troops in Defense Reform 2.0. Second, it was found that it is necessary to actively communicate with the local community due to the deconstruction and movement of the border area units, such as the decrease of the population of the region and the collapse of the local commercial area. Third, it was judged that it is necessary to show substantial results through the promotion of barracks culture and the defense industry, which showed that there was less interest than military structure and defense operation from the people and the introduction of active policies. Through this study, we analyzed the public's interest in defense reform 2.0, which is a representative defense policy, and suggested a plan to draw support for national policy.

Tests on explosion-resisting properties of high-performance equal-sized-aggregate concrete composite sandwich plates

  • Yizhong Tan;Songlin Yue;Gan Li;Chao Li;Yihao Cheng;Wei Dai;Bo Zhang
    • Structural Engineering and Mechanics
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    • v.87 no.4
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    • pp.297-304
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    • 2023
  • Targeted introduction of explosion-resisting and energy-absorbing materials and optimization of explosion-resisting composite structural styles in underground engineering are the most important measures for modern engineering protection. They could also improve the survivability of underground engineering in wartime. In order to test explosion-resisting and energy-absorbing effects of high-performance equal-sized-aggregate (HPESA) concrete, the explosive loading tests were conducted on HPESA concrete composite plates by field simple explosion craters. Time-history curves of the explosion pressure at the interfaces were obtained under six conditions with different explosion ranges and different thicknesses of the HPESA concrete plate. Test results show that under the same explosion range, composite plate structures with different thicknesses of the HPESA concrete plate differ significantly in terms of the wave-absorbing ability. Under the three thicknesses in the tests, the wave-absorbing ability is enhanced with the growing thickness and the maximum pressure attenuation index reaches 83.4%. The energy attenuation coefficient of the HPESA concrete plate under different conditions was regressively fitted. The natural logarithm relations between the interlayer plate thickness and the energy attenuation coefficient under the two explosion ranges were attained.

Anarchy of Empire and Empathy of Suffering: Reading of So Far from the Bamboo Grove and Year of Impossible Goodbyes from the Perspectives of Postcolonial Feminism (제국의 혼동과 고통의 분담 -탈식민페미니즘의 관점에서 본 『요코 이야기』와 『떠나보낼 수 없는 세월』)

  • Yu, Jeboon
    • Journal of English Language & Literature
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    • v.58 no.1
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    • pp.163-183
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    • 2012
  • This paper is one of those attempts to explore some possibility of agreement between feminist discourse and postcolonial discourses through the approach of postcolonial feminism in the reading of the controversial novel, So Far from the Bamboo Grove and Year of Impossible Goodbyes. So Far from the Bamboo Grove, when read from the perspective of postcolonial feminism, reveals 'domestic nationalism' of imperial narratives in which the violence of imperial history in Korea is hidden behind the picture of every day lives of an ordinary Japanese family and Japanese women. Furthermore, postcolonial feminist's perspective interprets Yoko family's nostalgia for their 'home,' Nanam in Korea, as 'imperialist nostalgia' working as a mask to hide the violent history of colonization of Empire. In this way, postcolonial feminist reading of the story detects the ways the narrative of Empire appropriates women, family image and even nostalgia for childhood. At the same time, this perspective explains the readers' empathy for Yoko family's suffering and the concerning women issues caused by wartime rape and sexual violence by defining Yoko as a woman of Japanese Empire, whose life of interstice between imperial men and colonial men cannot be free from violence of rape during anti colonial wars. Year of Impossible Goodbyes as a counter discourse does not overcome the traditional binary opposition of nationalism which quietens gender and class issues. As an attempt to fill in the interstice between the two perspectives of feminism and postcolonialism. postcolonial feminist reading turns out to be a valid tool for the reading of the two novels chosen here.