• Title/Summary/Keyword: Korean War(6.25)

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Propulsion System of R.O.K.N Warships & Future of Propulsion System (대한민국 해군 군함의 추진체계와 미래의 추진체계 발전방안 연구)

  • Shin, Seungmin;Park, Jong-hwa;Hong, Yong-pyo;Oh, Kyungwon
    • Journal of the Korean Society of Propulsion Engineers
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    • v.25 no.6
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    • pp.53-59
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    • 2021
  • The ROK Navy operates many war ships despite its short history. Various types of war ships, such as submarines, destroyers, frigates, corvette etc., use suitable propulsion systems for the operational requirements of each war ship. A hybrid propulsion system was introduced to change from the current mechanical propulsion system to an electric propulsion system according to the changing patterns of naval warfare, and it is expected that an integrated electric propulsion system will also be introduced. Therefore, this paper investigates the propulsion system of major ships operated by the Korean Navy, predicts the changes in future naval warfare, and proposes a propulsion system for future ships.

Scientific Preservation of the Relics left by the Fallen Heroes of the Korean War: Focusing on the Local Relics Kept by the Ground Operations Command (6·25전쟁 전사자 유품의 과학적 보존: 지상작전사령부 소장 지역유품 중심으로)

  • Park, Min-Seon;Oh, Seung-Jun;Lee, Ho-Yeon;Wi, Koang-Chul
    • Journal of Conservation Science
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    • v.38 no.2
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    • pp.144-153
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    • 2022
  • This study conducted scientific analysis and preservation treatment for the local 7 relics (depurator bottle, eagle patten button, rank insignia, mess tin, M1 Grand-gun cleaning tool kit, Carbine bullet, cartridge) of the fallen of Korean War excavated through the MND Agency for KIA Recovery & Identification that are possessed in the exhibition hall of the Ground Operations Command. FT-IR analysis results show that remainder of depurator bottle is assumed to play a role of water and food purifier during the war for its spectrum similar to Trisodium phosphate, and inscription carved on the cartridge that is hard to observe with naked eyes was also confirmed through 3D digital shooting method. This study also established directivity of preservation treatment of relics for stable treatment by carrying out a survey of conditions based on the microscope and visual observation. The result is expected to be used as basic data for establishment of future directivity of preservation treatment for a variety of war relics.

The role of the People's Liberation Army during the Korean War and Prospect of China's Role in the event of Contingency in North Korea (6.25 전쟁 시 중공군의 역할과 북한 유사시 중국의 역할 전망)

  • Choi, Kyung-Sik
    • Journal of National Security and Military Science
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    • s.8
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    • pp.169-238
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    • 2010
  • The year 2010 is the 60th anniversary commemorating the Korean War. China intervened in the Korean War with the logics such as "To Resist the U.S.'s Aggression and Aid North Korea," "Save Endangered Home & defend Nation," and "If the Lips Are Gone, the Teeth Will Be Exposed to the Cold or If One of Them Falls, the Other is in Danger." However, China had a deep and long connection with North Korea through 1st Chinese Civil War, war against Japan imperialism, and 2nd Chinese Civil War. China has consulted with Kim Il-sung on his invasion of South Korea at the initial stage of development and played a casting vote role in the execution of the invasion plan. During the Korean War, the PLA supported the North Korea's regime by its action, and made the Korea Peninsula divide into two semi-permanently. Even after the war, China continues to maintain relations with North Korea by helping North Korea build the Kim Il-sung's Kingdom. Currently, whenever any issue related to North Korea rises in the international society, China definitely gets involved in those issues and exercises its power. Conditionally 'either armed aggression or, and wartime' in North Korea, China would follow the "Clause of Military Auto Intervention." In addition, China is very likely to establish refugee camps for North Koreans in the Northeastern-Three-Province and to provide rear bases or guerrilla camps for pro-Chinese sects. Furthermore, voluntarily playing a role as spokesman of North Korean Regime in the international society, China will exercise enormous influence on the reunification of the Korean Peninsula.

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Scientific Analysis of National Registered Cultural Heritage 666, Korea's First Fighters used during the Korean War (F-51D) (등록문화재 제666호 F-51D 무스탕 전투기 과학적 분석)

  • Kang, Hyunsam;Jang, Hanul;Kim, Soochul;Lee, Uicheon
    • Conservation Science in Museum
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    • v.23
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    • pp.71-90
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    • 2020
  • The scientific analysis of a 'F-51D Mustang Fighter'(Registered Cultural Heritage 666), one of the War Memorial of Korean collections, was carried out. The paint layer and canopy were discolored due to a constant outdoor exhibit. The results obtained through the scientific survey and analysis processes were intended to be used as basic data for the future dismantling and restoration of the fighter. The analysis results for the pigment components have confirmed red oxide of iron, Fe2O3 organic pigments, such as Cobalt Blue, phthalocyanine blue, etc., yellow PbCrO4, white TiO2, black Fe3O4, and gray Fe3O4 + TiO2. It has been also confirmed that Alkyd resin was mainly used for painting. The fighter's canopy was Poly methyl methacrylate(PMMA), and Al was detected as the main component of the fighter body, wings, and tails.

Socio-Economic Implications of Korean Popular Songs per period (시대별 대중가요로 살펴본 사회경제적 함의)

  • Kim, Sang-kyu
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.283-288
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    • 2020
  • This study explored the socio-economic implications of Korean popular songs, of which the prevalence is divided by three periods: During the Japanese colonial period, from the country's liberation to the Korean war, and after the Korean war until the year of 1959. The economic exploration of popular songs per period in this paper has a high value as an interdisciplinary study because they contain not only the economic situation of Korea at the time, but also life affinity and convergence. Moreover, this study is significant as the glocalization strategy, the increment of creativity, and strengthen competitiveness.

A Study of Korean Skull Base Height - with Special Reference to the MIA Sample during the Korean War and the Late Chosun Sample - (한국인 머리뼈 밑면 높이 연구 - 조선후기인골(17-18세기)과 6.25전사자를 중심으로 -)

  • Park, Sun-Joo
    • The Korean Journal of Quaternary Research
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    • v.21 no.1
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    • pp.37-45
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    • 2007
  • Skull base height increases significantly with better nutrition and health conditions. With coordinate caliper or by subtraction, skull base height is easily measured. To examine nutrition and health condition of MIA(missing in action) during the Korean War and people who lived during the 17-18 centry of the Late Chosun. This study is focused on the change of skull base height through time as seen in comparing 83 MIA cranium and 12 17-18 centry cranium of Korea with 219 modern American middle class adult cranium(Terry Collection and forensic skeleton). To sum up, nutritional condition of MIA is not significantly changed, as seen in comparing with nutritional condition of 17-18 century people.

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The nature of UN support of the Korea War (유엔의 6.25전쟁 지원과 성격 -신정공세 전후 유엔의 휴전교섭 노력을 중심으로-)

  • Yang, Yong-Jo
    • Journal of National Security and Military Science
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    • s.8
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    • pp.1-48
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    • 2010
  • The purpose of this study is to examine and analyze the Untied Nations' efforts for peace on Korean peninsular after CCF's participation in Korean War. The Untied Nation tried to negotiate th peace plan between two sides from the end of 1950. Once the CCF's entry into the war had been confirmed, the war situation moved to a new phase, and the UN forces, which had guided the war in an effort to destroy the NKP A forces, and to punish North Korea, had to set up new guidelines to cope with the new situation. Accordingly, in late November, 1950, the UN forces camp, mainly the US Joint Chiefs of Staff and the United Nations Command, discussed various options, such as an expansion of the war up to the Chinese territory, a cease fire along the 38th Parallel, or a forced and inevitable evacuation. The Korean delegation to the UN insisted that "the unification of Korea should be achieved only by victory in the war. The Chinese intervention in the war is a Challenge to the UN in the same way as the North Korean invasion. The UN participation in the war was to repulse the invasion. With the same spirit we should drive back the Chinese Communists." The Korean delegation also emphasized to the friendly nations the political objective and will of unification, and that a cease fire at a threshold of unification might return us to the status quo ante bellum, and would be contrary to the Korean nation's desire. At that time, particularly, the US strongly considered the employment of nuclear weapons as one of the new strategies to cope with the Chinese invasion. The international effects of these casual remarks were realized almost at once. The British Prime Minister who had not wanted the expansion of war in the Far East, especially from the view point of the interest of NATO's security, visited Washington. so the conference had a very important meaning for the UN forces' new strategy. On the other hand, at the UN, on the 5th of December, the very day Truman and Attlee agreed to seek a cease-fire under UN auspices, a group of thirteen Asian and Arab states proposed to ask China and North Korea not to cross the 38th Parallel, and sounded out both sides about a cease fire along the 38th Parallel. The United States and the United Kingdom gave their assent, but China and North Korea gave no direct response. The CCF, who were securing the initiative of operation, were not agreeable with the proposal of the UN forces. The Untied Nation has tried to negotiate th peace plan between two sides from the December of 1950 and January of 1951. The Untied Nations' has achieved great results to negotiate for the peace plan on Korean peninsular after CCF's participation in Korean War. It's the results considering both the operation situation and political opinions.

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Characteristic Analysis of Paint used in Defense Industries Equipments of Korean Conflict in The War Memorial of Korea (전쟁기념관 소장 6·25전쟁 방산장비의 도료 특성 분석)

  • Kang, Hyun Sam;Kim, Soo Chul;Park, Min Soo
    • Journal of Conservation Science
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    • v.32 no.2
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    • pp.215-221
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    • 2016
  • This study conducted analysis of paint samples from defense industries equipments of Korean Conflict in The War Memorial of Korea to identify the characteristics of the modern paint. The samples were analyzed by microscopic observation, infrared spectroscopy and SEM-EDS. Cross-section of paint samples are made up of several layers of about 9 to 20 times, and thickness of the layer is not uniform in the $10{\sim}100{\mu}m$. The putty was used for the surface treatment before painting. Inorganic analysis showed that one type of the putty consist of minium and kaolin, talc, titanium dioxide. According to the results of infrared spectroscopy, paint samples were identified as alkyd resin. Some bands such as C-H bending, C-O and C-C stretching, C-H rocking were found in spectra.

A Reanalysis and Evaluation of the Chuncheon District Battle In the Early Part of the Korean War (6·25전쟁 초기 춘천지구 전투의 재분석과 평가)

  • LEE, SUNG CHOON
    • Convergence Security Journal
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    • v.15 no.4
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    • pp.127-139
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    • 2015
  • The purpose of this research is to reevaluate the success factors and significance of the battle through the analysis of the only successful Chuncheon district battle during the defense combat in the early part of the Korean War on June 25, 1950. The research results are the matters that are analyzed from the viewpoint of the armed forces of the Republic of Korea, focusing intensively on the successful aspect of the early defense combat against North Korean army's surprise invasion of the South and on the battle that thwarted the North Korean army's intensive surprise attack intention. This research attempts to reanalyze the Chuncheon District Battle in connection with the Kim Il-sung's strategic course of action in consideration of the operation plan of North Korean invasion of the South. In other words, it is to reanalyze the enemy tactics in connection with North Korean army's plan of invasion of the South. The fact that the 6th Division of the armed forces of the Republic of Korea destroyed the North Korean army's operations plans that were in accordance with Kim Il-sung's strategic plans has more significance than a simple tactical success. The Chuncheon District Battle should be reevaluated as the "decisive battle" which went beyond a successful early defense combat in a Chuncheon region, and which fundamentally defeated North Korean army's war plan itself by thwarting the Kim Il-sung's strategic plan.