• The Journal of Korean Academic Society of Nursing Education
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• v.4 no.2
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• pp.159-171
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• 1998

The purpose of this study is to explore the relationships between hope, health locus of control and general health of nursing students. The subjects of this study were 161 female students of National Nursing School in Seoul. Data was collected through a questionnaire from May 11 to May 23, 1998. The tools used for this study were Hope scale developed by Miller and Power, Multidimensional Health Locus of Control Scale developed by Wallston and Wallston and General Health Scale(Modified Conel Medical Index) developed by Nam Ho Chang. Data were analysed in an the $SPSS/pc^+$ program using frequency for the demographic characteristics, 1-test and ANOVA for relationship between the variables and demographic characteristics and for it's differences of hope and general health control. Peason correlation coefficient for relationship between the 3 variables, hope, health locus of control, and general health. The results of this study were as follows ; The 1st hypothesis : that 'Between hope, health locus of control (HLC) and general health of nursing students will have positive relationship', was supported(=.2883, p=.000). The 2nd hypothesis; that 'The hope score of nursing students in HLC-internal group will be higher than others' was supported(F=5.22, p=.0063). The 3rd hypothesis ; that 'The general health of nursing students in HLC -internal group will be higher than others' was accepted(F=2.94, p=.0554). The 4th hypothesis ; that 'Hope, HLC and general health of nursing students according to demographic characteristics will be different ' was accepted in part. o In hope the more age, the higher score. o In HLC the group of non religious have higher score(t=-2.02, p=.045). o No experienced addmission was revealed HLC-internal group(t=-1.91, p=.058). o Non religious group has a tendency to dependent upon on powerful other person(t=-1.99, p=.049). o The hope score of nursing students was very high(4.49/6point). o The general health status of nursing students was vert good(92.88/114point). o Most of nursing students was in HLC-internal group(81.4%). o The most frequent complaints of nursing students was dizziness suddenly developed(68.4/114point), very nervous in small thing(67.83/114) and very nervous to others critics(68.4/114) in turn. In conclusion, the students who have high score of hope, in HLC-internal group have good general health. Hope inspiring not only makes one's good health but also makes others good health and powering hope. For good health person who are in HLC-internal group have powerful hope, keeping good health would be a good stretegy to change the student's HLC and make them good health and hope powering then it would be a good method to change the HLC to HLC-internal group.

• Journal of the Korean Society of Food Science and Nutrition
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• v.41 no.5
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• pp.591-597
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• 2012

This study was conducted to investigate the changes in chemical components and antioxidant activities of dried jujube ($Zizyphus$ $jujuba$ Miller) with different aging temperatures ($60^{\circ}C$, $70^{\circ}C$, and $80^{\circ}C$) and durations (5 days, 10 days, 15 days, 30 days, and 50 days). The browning index increased from 0.124 to 1.998 with increased aging temperature and duration. As aging duration increased, fructose, glucose, and sucrose content decreased from 24.96% to 4.96%, from 22.23% to 4.41%, and from 18.41% to 0%, respectively. Reducing sugar content decreased from 351.52 mg/g to 155.96 mg/g as aging temperature and duration increased. Total acidity slightly increased from 1.61 to 3.13%. 5-Hydroxymethyl-2-furaldehyde increased from 0.002 mg/g to 38.84 mg/g, respectively. As aging temperature and duration increased, total polyphenol content increased from 15.98 mg/g to 38.61 mg/g. DPPH and ABTS radical scavenging activities increased from 4.03 mg trolox eq/g to 22.22 mg trolox eq/g, and from 2.11 mg ascorbic acid eq/g to 13.39 mg ascorbic acid eq/g, respectively. Reducing power increased rapidly in the first stage and then slowly increased afterward.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.27 no.2
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• pp.170-175
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• 2016

In order to transmit baseband signals through frequency dividing devices, we studied the transfer function of the device in the term of the baseband signal distortion. From the analysis, it is shown that the magnitude of the envelope signal is related to the mixer gain and the insertion loss of the low pass filter whilst the phase is the additional function with the 1/2 of the phase delay. For the purpose of the verification of the study, we designed a dynamic frequency divider at 1,400 MHz. The operating frequency range of the device is closely related to the conversion gain of mixers and the amplitude of input signal, and becomes wide as the conversion gain of mixers increases. The designed frequency divider operates between 0.9 GHz and 3.2 GHz, for -14.5 dBm input power. The circuit shows 20 mW power dissipation at $V_{DD}=2.5V$, and the simulation result shows that an amplitude modulated signal at 1,400 MHz with the modulation index of 0.9 was successfully downconverted to 700 MHz.

• Applied Chemistry for Engineering
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• v.21 no.1
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• pp.81-86
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• 2010

On adsorbing carbon monoxide (CO) on the silica supported ruthenium/iron alloy ($Ru/Fe-SiO_2$) samples above mole ratio 9/1 of Ru/Fe five bands ($2138.7{\sim}2142.5cm^{-1}$, $2067.3{\sim}2073.1cm^{-1}$, $1976.7{\sim}2017.2cm^{-1}$, $1737.9{\sim}1799.3cm^{-1}$, $1625.7cm^{-1}$) were observed, and in $Ru/Fe-SiO_2$ samples below mole ratio 8/2 of Ru/Fe two bands ($1934.0{\sim}1990.2cm^{-1}$, $1625.7cm^{-1}$) were observed. The $2138.7{\sim}2142.5cm^{-1}$ bands, the $2067.3{\sim}2073.1cm^{-1}$ bands, and the $1988.3{\sim}2030.7cm^{-1}$ bands may be ascribed to stretching vibrations of CO molecules lineally bonded to the Ru atoms on supported Ru/Fe cluster surface, the $1737.9{\sim}1799.3cm^{-1}$ bands to stretching vibrations of CO molecules bridge bonded to the Ru atoms on supported Ru/Fe cluster surface or to stretching vibrations of CO molecules bonded to the Ru atoms on high Miller index planes, and the $1934.0{\sim}1990.2cm^{-1}$ bands to stretching vibrations of CO molecules lineally bonded to the Fe atoms on supported Ru/Fe cluster surface. The absorbances of the $1934.0{\sim}1990.2cm^{-1}$ bands in $Ru/Fe-SiO_2$ samples gradually increased with the increases of Ru/Fe mole ratio below the ratio of 8/2. This phenomena may be ascribed to the increases of Fe concentration of surface compared with the one of the sample and to the increases of surface area of supported Ru/Fe cluster according as increase of Ru/Fe mole ratio below the ratio of 8/2 compared with the $Fe-SiO_2$ sample.