Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Gun-Yong Hwang"'
Autor:
Jiwoong Ahn, Kiwon Park, Nguyen Duy Vinh, Kap-Seung Choi, Hyung-Man Kim, Gun-Yong Hwang, Jungkoo Lee
Publikováno v:
IEEE Transactions on Energy Conversion. 29:727-734
It is important for fuel cell to become flexible in order to accommodate the situations of application areas for reducing costs and expanding coverage. Scale ups in series and parallel to 1-kW class proton exchange membrane (PEM) fuel cell stack are
Publikováno v:
Journal of Korea Multimedia Society. 14:194-200
Recently, RFID(Radio Frequency IDentification) market spread in industry region is entering a phase of stagnation due to cost issue. RFID tag inlay cost has become relatively more expensive due to the recent decrease in chip price. Therefore, a simpl
Publikováno v:
IEEE Transactions on Magnetics. 45:4550-4553
This paper proposes a technique for designing magnetic circuits for use in microspeakers, using the finite element method (FEM) and response surface methodology (RSM). RSM is a collection of statistical and mathematical techniques, used to find the b
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 19:863-869
Acoustic noises generated during motor operation in mechanical system are from electromagnetic, mechanical, aerodynamic and electrical sources. For identification of mechanical noise origins, misalignment, unbalance, fan shape, resonance, and vibrati
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 19:439-446
Noise sources in electric machines are broadly categorized as magnetic, mechanical, electronic and aerodynamic. Especially, there are several kinds of noise sources due to the change of reluctance by rotor position in IPM motor. To separate acoustic
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 16:183-189
In mobile phones of multimedia era, microspeakers of high qualify sound are essential parts to generate human voice in speaker phone and MP3 song player. In this paper, two types of microspeakers, outer permanent magnet (PM) and combined PM type, are
Publikováno v:
Key Engineering Materials. :1420-1426
Publikováno v:
Journal of Materials Processing Technology. :685-690
Mobile communication industry powered by electronics and information technology is building a transforming way for human communication. The latest electronics is so saturated to forget the difficulty in size reduction of electronic parts. However, me
Publikováno v:
KSME International Journal. 16:1089-1094
Mobile communication industry powered by electronics and information technology is building a transforming way for human communication. The latest electronics is so saturated to forget the difficulty in size reduction of electronic parts. However, me
Publikováno v:
Scientific Reports
SCIENTIFIC REPORTS(4)
SCIENTIFIC REPORTS(4)
The discrete regenerative fuel cell is being developed as a residential power control that synchronizes with a renewables load which fluctuates significantly with the time and weather. The power of proton exchange membrane fuel cells can be scaled-up