Search | Korea Science

Lee, Dae-Hyuk;Kim, Yong;Bae, Jin-Yong;Kim, Pill-Soo;Cho, Gyu-Man
- Proceedings of the KIEE Conference
- /
- 2005.04a
- /
- pp.164-167
- /
- 2005
This paper present ZVS Half-Bridge converter Using IM(Integrated Magnetics). In converter system, magnetic components are important devices used for energy storage, energy transfer, galvanic isolation and filtering. The purposes of IM(Integrated Magnetics) are to reduce the number of magnetic components and voltage/current ripple. This topology is use of three magnetics components thus increasing the cost and size of the system. A prototype featuring 300V input, 15V output, 400kHz switching frequency, and 150W output power.
PDF

Kim, Gyeong-Cheol;Kim, Yi-Soon;Kwak, Yi-Sub;Yang, Han-Joo
- Korean Journal of Acupuncture
- /
- v.28 no.1
- /
- pp.71-78
- /
- 2011
Objectives : This study is to determine the effects of magnetics therapy on the relief of premenstrual syndrome and dysmenorrhea among female college students. Methods : 20 female college students in a university are selected to the experimental group. All of the subjects have the score of more than 6 on the visual analogue scale for measuring the level of premenstrual pain. The data was collected by using questionnaires. The magnetics therapy on the Dong Shi Acupuncture Therapy extra points (婦科, 還巢, 木婦, 門金) was administered to the experimental group. Results : The results were as follows. The first hypothesis is supported ; the experimental group who received magnetics therapy on the Dong Shi Acupuncture will decrease premenstrual syndrome. The second hypothesis is supported ; the experimental group who received magnetics therapy on the Dong Shi Acupuncture will decrease dysmenorrhea. Conclusions : As a result of this study, magnetics therapy on the Dong Shi Acupuncture will be able to be used as the self care therapy to improve the symptoms of females with the premenstrual syndrome and dysmenorrhea.
PDF KSCI