This paper examines the possible conclusion of international conference of LAWS(Lethal Autonomous Weapons Systems) under the CCW(Convention on prohibitions or restrictions on the use of certain conventional weapons) LAWS does not exist yet, and there are on definition about that, but the negotiation of ban and limitation to use LAWS conducts in international conference. It goes without saying that it is desirable that LAWS be regulated to some extent, considering the risk that could arise if it were to be operated without restriction. Conference of LAWS have achieved to some extent, with the adoption of 11 Guiding principles as guideline for domestic operating of LAWS, but there are some difference in that interpretation of that words between participating nations. Therefore, nations submitted of that commentaries, which clarified their claims to certain extent. This paper clarifies the difference of that interpretations of “human responsibility”,“meaningful human control” and“accountability”, which are considered to particularly important elements, and concludes which is the most appropriate outcome in the conference. And in order to reach a conclusion, in addition to the principle of like a distinction and proportionality that have been considered as the principles of the Law of armed conflict, and how to deal with issue of “ethics” will assume a key role.

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This paper considers the various kinds of activity used to promote the development of Chinese language education in Cambodia. After first surveying the situation, focussing mainly on the rebuilding of Chinese immigrant education in Phnom Penh and the surrounding district, this report aims to consider the problem at various levels caused by other developments in Chinese language education, and the development of the Chinese language education in Cambodia where there is the largest Chinese immigrant school in Southeast Asia. The prosperity of this Chinese immigrant school with the development of Chinese language education is greatly influenced by the national political system, parts which are influenced by relations with China and the sensitive issues concerning anti-Chinese immigrant policy. Therefore, the writer thinks that the status of Cambodian Chinese language education is an important indicator of the current state of the mutual relations between the Chinese immigrant community of Cambodia and the Cambodian government.

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In this study, the effects of concrete strength and reinforcing clear distance on the damage of reinforced concrete (RC) slabs subjected to contact detonations have been experimentally investigated to establish the design and damage estimation methods of RC shelters. The main results obtained are as follows : 1) The concrete strength and the clear distance don't affect cratering and spalling significantly. 2) The dimensions of the crater and spall are relatively well predicted with the authors' method for the RC slabs with the ultra high strength concrete and much longer reinforcing clear distance than diameters of the crater and spall. 3) The surface and inside cracking tends to occur more remarkably with higher strength concrete and longer reinforcing clear distance.

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