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We try to analysis comparing the measurements by wheat-stone bridge method at room temperature of the magnetoresistance (MR) measured with the current in the layer planes (CIP) and the current perpendicular to the layer planes (CPP) for the samples that we prepare equal and unequal thickness Ag/Co multilayers on glass substrates in a vacuum of ?? Torr by a thermal vacuum evaporation method. We try to consider the correlation between the magnetoresistance curve obtained from X-Y recorder and the magnetic hysteresis curve examined by vibrating sample magnetometer for the CIP and the CPP each other. The MR(H) curves are similar in shape for the CPP and CIP orientations, and also the magnetic fields, ?? in which MR peaks appear are nearly same for each orientation. Maximum MR dadas for the CIP and the CPP (CIP-MR, CPP-MR) with varing Ag thickness show the same variation, and unlike Fe/Cr or Co/Cu, the Ag/Co multilayers do not oscillate with Ag thickness. The CPP-MR appear from 1 times to 6 times as large as the CIP-MR for the same samples.
Purpose: This study aims to analyze the difference in the perception that nursing students and medical students have regarding the image of nurses. Method: The sampling group for this study was made up of 111 nursing students and 117 medicine students, conducted from the 19th August 2013 to 3rd September 2013. The tool used for this study is the “Nurse Image Scale”. The data is analyzed using the SPSS 21.0 program, technical stats, t-test and ANOVA with Scheffe test. Result: There was a notable difference in the results(t=6.94, p<001), with the average image perception score of nurses at 3.84±0.34 amongst nursing students being higher than the 3.50±0.38 amongst Medicine students. The average score of the 4 areas tested, “Qualification of a Nurse”, “Role of a Nurse”, “Social Participation of a Nurse” and “Interpersonal Skills of a Nurse” were all marked higher by the nursing students than the medicine students. The average score became notably higher as the period of practice became shorter with nursing students (F=4.21, p=.043). Furthermore, the average score for the “Qualification of a Nurse” was notably higher as the period of practice became shorter (F=3.98, p=.049). Medical students gave an average score for the “Qualification of a Nurse”(F=3.72, p=.027) and the “Interpersonal Skills of a Nurse”(F=4.11, p=.019) which was relative to the development of a nurse's image, while the average score for the “Role of a Nurse” was notably higher with a longer period of practice(F=6.65, p=.011). Conclusion: The results of this study suggest that the image perception of a nurse can vary depending on the experience in period of practice. Therefore, together with this study conducted with nursing students and medicine students, there is a need for further studies conducted on image perception of nurses with various experience in period of practice.
유리 기판 위에 dc magnetron sputtering 방법으로 제작한 Fe(50 Å)/[Co(17 Å)/Cu(24 Å)_(20) 다층박막에 관하여 자기저항비의 기저층, 자성층, 비자성층의 증착률 및 열처리 의존성을 살펴보았다. 낮은 base 압력 중에서의 막의 증착은 Co/Cu 계면의 산화를 억제하여 자기저항비를 증가시켰다. 극대 자기저항비를 얻기위해 요구되는 증착률은 Fe는 1 Å/s 이상, Cu는 2.8 Å/s 이었으며 Co는 증착률이 2 Å/s 보다 높은 경우에 평탄한 자구형성을 이루어 자기저항비가 높아지는 경향을 보였다. 400 ℃까지의 시료에 대한 열처리는 다층박막의 주기성을 유지한채 더 큰 결정립을 형성시켜 반강자성적으로 결합한 막의 부분이 증가함으로써 자기저항비를 증가시켰다. Dependence of magnetoresistance on base pressure and deposition rates of each Fe, Co, Cu layers in the Fe(50 Å)/[Co(17 Å)/Cu(24 Å)_(20) multilayer thin films, prepared by dc magnetron sputtering on Corning glass, were investigated. AFM analysis, X-ray diffraction analysis, vibrating sample magnetometer analysis, and magnetoresistance measurement (4-probe method) were performed. The multilayer films deposited under low base pressure increases magnetoresistance ratio by preventing oxidation. Annealing for the samples at a moderate temperature allowed larger textured grain with no loss in the periodicity. Magnetoresistance ratio of the annealed multilayers was increased due to the increase antiferromagnetically coupled fraction of the film after annealing. Optimization of deposition rate was greater than 1 Å/s for Fe, and 2.8 Å/s for Cu. Deposition rate of Co showed a tendency of increasing of magnetoresistance ratio due to the formation of flat magnetic layer in case of high deposition rate of Co.