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Baba, Yoriaki;Kishitani, Harunobu;Takano, Hiroyuki
- 제어로봇시스템학회:학술대회논문집
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- 1994.10a
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- pp.647-652
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- 1994
In the previous paper, we presented a new guidance law for a missile during boost phase. Thus, this paper deals with the guidance law for a missile after the thrust cutoff against an accelerating and turning target. It is essentially based on the concept of proportional navigation. Some simulation studies were performed using a three dimensional mathematical model of an air-to-air missile and the effectiveness of the guidance law presented was shown.
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Shin, Hong-Kyun
- The Korean Journal of Air & Space Law and Policy
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- v.21 no.2
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- pp.207-230
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- 2006
It should be noted that current rules and provisions of the law, such as the act of military air base and the act of the construction, do not provide a fairly good solution regarding the conflict between the company and the air force. The act of military air base does not have the jurisdiction on the matters occurring outside the edge of the flight safety zone. Freezing measure about the construction permit is not suitable for this case. A sort of policy or revision of the law will be needed to foster the transaction between parties in question which may be useful for enhancing overall efficiency.
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Dunk, Frans G. Von Der
- The Korean Journal of Air & Space Law and Policy
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- v.22 no.1
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- pp.55-74
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- 2007
When the People's Republic of China destroyed one of its own defunct meteorological satellites, the Fengyun-1C, at an altitude of some 865 km above the earth's surface, the PRC was accused of initiating, or at the very least risking an(other) arms race in outer space also. The test also gave rise to a few legal questions as to the permissibility of this test, and the broader permissibility of using space for military and other weapon-touting activities, Whilst the test cannot be considered to constitute a direct threat to international peace and security so as to invoke relevant legal principles and consequences in terms of the UN Charter for example, it highlights the importance of such clauses in international space law as requiring international cooperation and consultation, due regard for the interests of all other countries both on earth and in outer space, and the further development of general regimes of registration and space debris-prevention. From that perspective, the PRC violated international outer space law not so much by the test itself but by the accompanying lack of information, consultation and due regard for other states', and indeed mankind's, interests.
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Dunk, Frans G.Von Der
- The Korean Journal of Air & Space Law and Policy
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- no.spc
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- pp.181-199
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- 2007
When the People's Republic of China destroyed one of its own defunct meteorological satellites, the Fengyun-1C, at an altitude of some 865 km above the earth's surface, the PRC was accused of initiating, or at the very least risking an(other) arms race in outer space also. The test also gave rise to a few legal questions as to the permissibility of this test, and the broader permissibility of using space for military and other weapon-touting activities, Whilst the test cannot be considered to constitute a direct threat to international peace and security so as to invoke relevant legal principles and consequences in terms of the UN Charter for example, it highlights the importance of such clauses in international space law as requiring international cooperation and consultation, due regard for the interests of all other countries both on earth and in outer space, and the further development of general regimes of registration and space debris-prevention. From that perspective, the PRC violated international outer space law not so much by the test itself but by the accompanying lack of information, consultation and due regard for other states', and indeed mankind's, interests.
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Hao, W.U.;Yongpeng, O.U.
- International Journal of Naval Architecture and Ocean Engineering
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- v.11 no.1
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- pp.510-520
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- 2019
To investigate the morphology characteristics of air layer in the air cavity, a numerical method with the combination of RANS equations and VOF two-phase-flow model is proposed for a plate with air cavity. Based on the model above, the dynamic and developmental process of air layer in the air cavity is studied. Numerical results indicate that the air layer in the plate's air cavity exhibits the dynamic state of morphology and the wavelength of air layer becomes larger with the increasing speed. The morphology of air layer agrees with the Froude similarity law and the formation of the air layer is not affected by the parameters of the cavity, however, the wave pattern of the air layer is influenced by the parameters of the cavity. The stable air layer under the air cavity is important for the resistance reduction for the air layer drag reduction.
https://doi.org/10.1016/j.ijnaoe.2018.09.005 인용 PDF KSCI