• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.11a
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• pp.725-728
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• 2000

Air hoist system has been using in the industry. In gradually, the system of function was developing, but system was not enough compensation for leakage. In this paper, developed the anti-leakage system with stability and convenience of operate.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1997.10a
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• pp.488-491
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• 1997

In this paper, a ncw control 'ialvc which can misc air-iraksge pneumatically and compensate pressure drop for an alrho~ st system uas proposed A new control valve called "Pneuniatic C70ntro1 Valve (PCV)" functions as a control valve to compcns;ltc prcssure in thc casc of air-leakage. by using the pure pneummatic control ofpilot pressure. Based on the sirnulation of the proposed PCY, thc experimental system was fabricaied su as to illustrate the efficient pcrformance of the proposed PCV with anti-leakage. Such good perfo~manccs of PCV in the air-hoist system are shown by the simulation. In addition, the simulation bascd design approach presented in this paper can be applied to any hydraulic or pneumatic-hydraulic system.

• The Korean Journal of Archival Studies
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• no.54
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• pp.111-150
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• 2017

This paper examines the current situation of sources on Korean Class B and C war criminals attached as civilians to the Japanese military during the Asian Pacific War charged with cruelly treating Allied POWs in Japanese POW camps, and also explores the possibility of a joint Korean-Japanese archive of these sources. The Japanese government agreed to the judgement of war crimes by accepting the terms of the Potsdam Declaration, and the Allied troops carried out the judgement of Class B and C war crimes in each region of Asia and the International Military Tribunal for the Far East (also known as the Tokyo Trials). However, many non-Japanese such as Koreans and Taiwanese from the Japanese colonies were prosecuted for war crimes. The issues of reparations and restoring their reputations were ignored by both the Korean and Japanese governments, and public access to their records restricted. Most records on Korean Class B and C war criminals were transferred from each ministry to the National Archives of Japan. The majority are copies of the judgements of war crimes by the Allied nations or records prepared for the erasure of Japanese war crimes after each department operated independently of the Japanese government. In the case of the Diplomatic Archives of the Ministry of Foreign Affairs, such records focused mostly on their war crimes and the transfer of B and C war criminals within Japan and the diplomatic situation. In the case of Korea and Taiwan, these records were related to the negotiations on the repatriation of Class B and C war criminals. In addition, the purpose of founding of the Japan Center for Asian Historical Records and its activities demonstrate its tremendous utility as a facility for building a joint Korea-Japan colonial archive. Thus, the current flaws of the Japan Center for Asian Historical Records should be improved on in order to build a such a joint archive in the future.