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비정질 연자성재료를 이용한 복층 차폐체의 저주파 자기장 차폐효과
김성규(S. G. Kim),허진(J. Hur),박포규(P. G. Park),정연춘(Y. C. Chung),김윤배(Y. B. Kim),김택기(T. K. Kim) 한국자기학회 1998 韓國磁氣學會誌 Vol.8 No.6
Magnetic shielding effect of cylinderical shields made of commercial amorphous ribbons has been studied. The shell-arragement-order of double shell shield has been found to show a striking difference in shielding factor. In low applied field region, a 2605CO-2705M-shield (outer shell: 2605CO, inner shell: 2705M) yields two times higher shielding factor than a 2705M-2605CO-shield (outer shell: 2705M, inner shell: 2605CO). The reasons are as follows: In case of 2605CO-2705M-shield, the outer shell is not easily saturated and effectively shields the applied field. In addition, the inner shell shows high shielding factor in the field shielded by the outer shell. In case of 2705M-2605CO-shield, the outer shell is saturated at very low field as well as the inner shell shows low shielding factor in the field shielded by the outer shell.
김성규(S.G.Kim),최현규(H.K.Choi) 한국해양대학교 해사산업연구소 1998 海事産業硏究所論文集 Vol.8 No.-
Marine fresh water generator is normally used to provide high quality distillate from sea water for the vessel's water systems, portable waters and drinking water. There are many types of fresh water generators as distillation, ion exchange, reverse osmosis, electrodialysis and freeze methods which may be used for the desalination of sea water. Hot cooling water or auxiliary system is often used as a heat source increasing cost effectiveness. This study is concerning to develope 1 ton/day low pressure evaporation type fresh water generator for the use of islands in the season of water shortage.