http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김성진(S-J Kim),최준영(J-Y Choi),공지현(J-H Kong),문종혁(J-H Moon),이세훈(S-H Lee),심원현(W-H Shim),이은혜(E-H Lee),이은주(E-J Lee),이해석(H-S Lee) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11
Although PV module manufacturing and its structure are simple,the semi-permanent products can be used out doors for more than twenty years.Therefore it is need to choose proper materials and optimize manufacturing process. This paper suggest that factors of degradation need to be studied to achieve a more understanding of PV module Degradation rates and materia lfailure. Nowadays durability of the PV Module is very important to sustain output safety for obtaining reliability. This paper is about the experiment that soldering uniformity of soldering process and to make least void from soldering process. From This study soldering flux residue and soldering method is main factor to form void blocked soldering uniformity and by using this.
Zn<SUB>1−x</SUB>Fe<SUB>x</SUB>O의 뫼스바우어 분광학적 연구
김성진(S. J. Kim),이상률(S. R. Lee),박철수(C. S. Park),김응찬(E. C. Kim),조영걸(Y. G. Joh),김동호(D. H. Kim) 한국자기학회 2008 韓國磁氣學會誌 Vol.18 No.2
Recently, the - semiconductor ZnO, normally n-type, doped with magnetic impurities was reported to be ferromagnetic above room temperature. Since ZnO is optically transparent, ferromagnetic Zno should a transparent magnet as well. The purpose of this study was to carry out Mossbauer, X-ray and magnetic-susceptibility measurements on ZnO<SUB>0.99</SUB>Fe<SUB>0.01</SUB>O to examine its magnetic properties and to separate the contributions of the ferromagnetic and the paramagnetic phases to the magnetization. The X-ray diffraction (XRD) data for Zn<SUB>0.99</SUB>Fe<SUB>0.01</SUB>O showed a typical hexagonal structure, with no indication of a secondary phase. The magnetic hysteresis (M-H) curve at room temperature showed an obvious ferromagnetic behaviour, and the magnetic moment per Fe atom under an applied field of 0.8 T was estimated to be about 2 μB, suggesting a low spin configuration of Fe ions. Mossbauer spectra of Zno<SUB>0.99</SUB>Fe<SUB>0.01</SUB>O have been taken at various temperatures ranging from 100 to 300 K. The Mossbauer spectrum of Zn<SUB>0.99</SUB>Fe<SUB>0.01</SUB>O consists of a ferromagnetic (six-Lorentzian) and a paramagnetic phase (doublet).