• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.7
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• pp.4301-4309
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• 2014

This study was carried out to identify the perceived educational needs of diabetes mellitus type 2(DM 2) patients and the factors influencing their diabetes educational needs. The descriptive and correlation study design was used. The data was collected from January 2, 2012 to February 29 10, 2012 and a total of 346 diabetes patients responded in a structured instrument regarding their characteristics, diabetes knowledge and needs for diabetes education. The data was analyzed using ANOVA, t-test, Scheffe test, Pearson correlation, and stepwise multiple regression. The mean score of the diabetes educational needs was 3.03 (range: 1.09-4.00). Of the factors significantly influencing the diabetes educational needs, age (${\beta}$=-.25, p<.001), diabetes education participation of the family (${\beta}$=.21, p=.003), and self blood sugar test (${\beta}$=-.13, p=.045) explained the 11% variance of the diabetes educational needs. These three factors need to be considered when implementing diabetes education programs for diabetes management.

• Spatial Information Research
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• v.8 no.2
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• pp.243-255
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• 2000

The spatial distribution characteristics and patterns of geographic features in space can be understood through a variety of analysis techniques. The scale is one of most important factors in spatial analysis techniques. This study is aimed at identifying the characteristics of spatial data with a coarser spatial resolution and finding procedures for spatial resolution in operational scale. To achieve these objectives, this study selected LANSAT TM imagery for Sunchon Bay, a coastal wetland for a study site, applied the indices for representing scale characteristics with resolution, and compared those indices. Local variance and fractal dimension developed by previous studies were applied to measure the textual characteristics. In this study, Moran s I was applied to measure spatial pattern change of variance data which were generated from the process of coarser resolution. Drawing upon the Moran s I of variancedata was optimum technique for analysing spatial structure than those of previous studies (local variance and fractal dimension). When the variance data represents maximum Moran´s I at certainly resolution, spatial data reveals maximum change at that resolution. The optimum resolution for spatial data can be explored by applying these results.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.9 no.2
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• pp.137-140
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• 1999

Effects of annealing and impurities on the superconducting properties were investigated by the magnetization measurement in $Bi_2Sr_2CaCu_2O_{8+{\delta}}(Bi2212)$ single crystals grown by flux method. It has been found that the superconducting properties are affected by Mg and Al impurities remarkably. The transition temperature$(T_c)$ has been lowered by the impurity of Mg. However, the diamagnetism is remarkably increased in an annealed crystal grown in MgO crucible compared to that in $Al_2O_3$ crucible. The content of Mg impurity can not be considered as a principal parameter for the decay of superconducting properties probably because the diamagnetism is remarkably improved in annealed crystal containing Mg.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.4 no.1
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• pp.46-56
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• 1994

The characteristics of flows, temperatures, concentrations of the boron are numerically studied when uniform axial magnetic fields are applied in the Czechralski crucible. The to governing factors to the flow regimes are buoyancy, thermocapillarity, centrifugal forces, magnetic forces, diffusion coefficient and segregation coefficient of the boron. Since the concentration of the boron is so low that buoyancy effects are negligible, it cannot affect the flow and temperature fields. From the fact that the flow fields are rotationally symmetric, two velocity components in the meridional plane and the circumferential velocity are calculated together with the temperature in the steady state. Based on the known velocity and temperature distributions the unsteady concentration distributions of the boron are calculated. As the strength of the magnetic is increased, the flow velocities are decreased. Circumferential velocities are large near the crucible side-wall and in the region below the rotating crystal. Steep temperatures gradient near the edge of the rotating crystal causes the Marangoni convection. It has been found out that the convection characteristics affects the unsteady transport phenomena of the boron.

• Journal of the Korean Society for Library and Information Science
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• v.47 no.4
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• pp.211-233
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• 2013

This study aims to evaluate job satisfaction level of employees working at special libraries by analyzing their affiliated institution and personal backgrounds. Results indicated that the job satisfaction level in private institutions was higher for 'remuneration', 'promotion', and 'overall satisfaction' in comparison to public counterparts. Also, employees working at institutions with independent libraries had higher level of satisfaction for 'work itself', 'remuneration' and 'co-workers' in comparison to those working in non-independent libraries. In terms of employment status, satisfaction level for 'remuneration' and 'promotion' was high among permanent employees, whereas 'superior and supervisor' was relatively higher among temporary employees. In terms of position, supervisors had higher level of satisfaction for 'remuneration', 'job system', 'promotion' and 'overall satisfaction' in comparison to non-supervisors. Employees with degrees in library and information science had higher level of satisfaction for 'work itself', 'job system', 'promotion' and 'institutional environment' in comparison to non-majors. This study clarified desires and emotions of employees working at special libraries and eliminated obstacles to higher job satisfaction. These findings may have implications for the improvement of work efficiency in libraries.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.43 no.7
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• pp.585-592
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• 2015

Effects of opening distance on liquid-gas spray of pintle injector were experimentally investigated under atmospheric condition by using water and air as simulants of propellants. Discharge coefficients($C_d$) and mass flow rates were calculated with various injection conditions; 0.1 bar - 1.0 bar for water pressures and 0.2 mm - 1.0 mm for the pintle opening distances. Spray angles were measured from the spray images that were obtained by a shadowgraphy method. When opening distance is 0.2 mm, liquid sheet is not formed properly and it show non-uniform spray. than it can result in combustion instability. it has a weak correlation between the momentum flux ratio and the spray angle, while it has a strong correlation between the momentum ratio and spray angle. Finally the spray angles reduced exponentially when the momentum ratio increased and the spray angles converged to about 40 degrees.

• The Journal of the Korea Contents Association
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• v.17 no.6
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• pp.622-631
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• 2017

The purpose of this study was to examine the effects of career maturity on school adjustment in the middle school students on the mediating effect of sense of community. The data of 2,121 middle school students in the research into the state of adolescent activities and improvement plans(2015) by the National Youth Policy Institute were analysed. The results of the study are: (1) career maturity was found a key factor affecting the school adjustment of middle school students, (2) their career maturity had a positive affect on the sense of community, (3) sense of community affects school adjustment of middle school students, (4) sense of community was proved to have a mediating effect between the effects of career maturity and school adjustment. The implications and limitations are reviewed, as are the suggestions for future research.

• The Journal of the Korea Contents Association
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• v.14 no.5
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• pp.179-189
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• 2014

The purpose of this study was to investigate the relationships among the elderly's motivation to participate in lifelong education, educational satisfaction and life satisfaction. Three types of participation motivation(goal-orientation, activity-orientation and learning orientation) and four components of educational satisfaction(educational content, educational environment, instructor quality and educational result) were examined in this study. The sample of this study was composed of 307 elderly people attending in 6 community colleges for the aged located in Seoul metropolitan area. Data were collected using structured questionnaires and analyzed employing multiple regression analysis as a main data analysis method. This study found that participation motivation in lifelong education had a positive effect on educational satisfaction and that educational satisfaction had a positive effect on quality of life. The theoretical and practical implications of the findings were discussed and the directions for future research were suggested.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.817-828
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• 2013

This study was pre-experimental research designed to compare the differences between pre-and post-program on nursing student's career maturity, career decision-making self-efficacy and employment stress. The subjects were 247 junior-year students in nursing school. Mean value for career maturity was from 2.59 to 2.57, career decision-making self-efficacy from score 3.44 to 3.65 in average(t=8.67, p<.001), and employment stress from score 2.94 to 2.83 in average(t=-3.46, p<.001). Career maturity was significantly different according to high employment rate(F=3.15, p=.025), high career preparation(F=2.69, p=.032). Career decision-making self-efficacy and employment stress was significantly different according to high career preparation(F=1.22, p=.031) and low career preparation(F=2.52, p=.030).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.74-81
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• 2018

This study investigated the ecological factors influencing second-year middle school students' academic motivation. A total of 371 students were surveyed for this study and data were analyzed for descriptive statistics using SPSS Win 21.0. The results of this study revealed that female students showed higher academic motivation than male students. However, school life satisfaction was strong for both male and female students. Finally, the introduction of parent education programs that target children to improve learners' self-identity and parent-child or teacher-student communication programs are necessary to enhance academic motivation.