Ethnic Groups and Ethnic Conflict in Myanmar

It seems that the Union of Myanmar is of all the Southeast Asian countries, most vulnerable to the problems arising from the issue of ethnic diversity. The central government, mainly led by the majority Burmans, has tried to integrate a variety of ethnic groups in federal institutions since independence. As the minorities have claimed greater autonomy, the result has been a continuous succession of insurrections. The ethnic problems in Myanmar, however, are still a point of major concern, having even given rise to changes in its political structure. The Burmans, who occupied the center in the union, maintained different historical relationships with each on these ethnic groups. Such historical processes are reflected in the present, complicating the matter even more. This paper shows how to define the complex concept of ethnic group ill a Southeast Asian society like Myanmar. Also we seek the fact that ethnic groups in Myanmar have experienced great alternations especially in their ethnicity through the histor cal processes -from the period of dynasties via the colonial rule to the nation-state- and continue to know of how ethnic conflict has been arisen in the nation-state

Wear of Coated WC Insert Tool

피복(TiC, TiN)초경공구와 초경공구(P20)의 내마모성을 비교한 결과, 피복초경공구의 내마모성이 초경공구에 비해 3~4배 크다는 것을 알 수 있었다. 피복초경공구의 절삭력 및 절삭온도가 초경공구보다 낮다는 것을 알 수 있었고, 이는 낮은 절삭력과 절삭온도로 인하여 피복초경공구의 내마모성이 향상된다는 다른 연구결과와도 일치하였다.By comparing the wear resistance of coated WC insert tool (TiC, TiN) and WC insert tool (P 20), it was shown that the wear resistance of coated WC insert tool is 3~4 times greater than that of WC insert tool. It was known that the cutting force and temperature of coated WC insert tool is lower than those of WC insert tool, and this result coincided with the result of other study saying that the lower cutting force and temperature increase the wear resistance of coated WC insert tool.By comparing the wear resistance of coated WC insert tool (TiC, TiN) and WC insert tool (P 20), it was shown that the wear resistance of coated WC insert tool is 3~4 times greater than that of WC insert tool. It was known that the cutting force and temperature of coated WC insert tool is lower than those of WC insert tool, and this result coincided with the result of other study saying that the lower cutting force and temperature increase the wear resistance of coated WC insert tool