• Korean Journal of Health Education and Promotion
• /
• v.7 no.1
• /
• pp.33-38
• /
• 1990

This study was carried out to identify variables related to morbidity perceived by residents who lived in an urban poor community in Seoul city, to analyze correlation between varibles and morbidity, and to find out factors related to the morbidity. Chi-square test, t-test, Pearson's C. C., and factor analysis were employed in this study. The factors labelled by this study are family expenses, housing environment, consumption level, and health care. It may be concluded that a morbidity pattern in specific communicty is strongly associated with socio-economic factors as we observe it at macro level. If the conclusion is acceptable, the health care system should pay attention to reducing the incidence itself through controlling socio-economic aspects of the community and should be reoriented. In this context, the primary health care approach which World Health Organization has advocated can be justified.

• Proceedings of the KIEE Conference
• /
• 2004.07e
• /
• pp.120-122
• /
• 2004

This paper describes the digital relay simulator by use of DSP for digital relay test. The simulator software has EMTP simulation data file conversion. user define simulation data generation. data analysis engine. etc. The simulator hardware design uses 32bit floating point DSP architecture to achivev flexibility and high speed operation.

• The Korean Journal of Emergency Medical Services
• /
• v.4 no.1
• /
• pp.83-93
• /
• 2000

This survey is mainly focus on identifying the efficacy of CPR training for 92 first responders who participated in the first aid and emergency rescue program dated on November 22 and November 24, 2000. First responders are trained and evaluated using AHA guideline for 4 hours. Data are analyzed by Percentage, Mean, T-test, F-test using SPSS program. The results for this study are as follows: 1. An average score for CPR evaluation is high as 1.71 of total score 2.0. 2. Between adult CPR and infant CPR, an average score for adult CPR is higher than infant CPR. The highest item of adult CPR and infant CPR is checking for unresponse(1.95 and 1.93), the lowest items are checking for circulation and chest compression position in the adult CPR and location of chest compression in the infant CPR 3. There are statistically significant differences in the evaluation score of CPR according to age, education level, occupation, job experience and emergency accident situation in the past.

• Journal of the Korean Home Economics Association
• /
• v.23 no.4
• /
• pp.123-141
• /
• 1985

The purposes of this study were 1)to examine the present and the preferred design characteristics of major interior furnishings in the Gamsil apartment area of Gangdong-Ku and to investigate the relationship between those characteristics and residents' socioeconomic and their physical housing characteristics, 2) to determine the past and the future factor structures for attributes of the major furnishing, and , 3) to examine the change between the degree of the past and the future consideration on each of the attributes. The data for the study were collected using self-administered questionnaire. Households in Gamsil apartment area of Gangdong-Ku were the population. A proportional stratified systematic random sampling was employed. 480 questionnaires were distributed and 258 were collected. Among them, SAS package. The staticstics used were frequency, percentage, χ\sup 2\-test, factor analysis, and paired t-test.

• Journal of the Korean Home Economics Association
• /
• v.28 no.2
• /
• pp.107-118
• /
• 1990

The purposes of this study are to investigate the children's prosocial behavior as related to (1) their perception of parental warmth, control and the relationship of this perception to parent's job status and educational level (2) their siblings (3) children's sex. The subjects were 220 third grade children selected from four elementary schools in Seoul. The instruments were a perception of parental warmth and control scale and a peer rating prosocial behavior scale. Frequencies, percentiles, mean, Pearson's correlation, t-test oneway ANOVA, and Scheffe test were used for data analysis. The major findings are as follows; 1. There were significant relationships between parental warmth, control, and children' s prosocial behavior. The children who perceived more parental warmth and control were rated more prosocial by their peers. 2. Children whose parent's were above college graduates and white collar jobs perceived more parental warmth and control. 3. Children's prosocial behavior were significantly different according ti sibling number, birth-order, and sibling structure. 4. Girls were rated more prosocial than boys.

• Journal of the Korean Society of Costume
• /
• v.54 no.7
• /
• pp.15-26
• /
• 2004

The internet is one of the modern facilities that has been diffused very rapidly in recent years and tremendously influenced on our life. Although the adolescents are major users of internet, the literature in clothing and textile area has not addressed the relationships between adolescents' internet use and clothing behavior, The purpose of this study was to examine the differences of adolescents clothing behavior. purchase evaluative criteria, and information source according to the use of internet. Descriptive statistics, t test, Analysis of Variance (ANOVA), and Duncan test were employed to analyze the data collected from the convenience sample of 572 middle and high school students in Gyeongnam, Korea. The use of internet was partially related to the adolescents' clothing behaviors. purchase evaluative criteria. and information source. Also, it was observed that the frequency and purpose of fashion website tended to be related more than the amount and purpose of internet did. Marketing implications from the results were suggested.

• 한국전산유체공학회:학술대회논문집
• /
• 2010.05a
• /
• pp.17-20
• /
• 2010

An aerial target system is used for the purpose of experimental test and fire training of missile that newly developed and in mass production. Since the target drones of aerial target systems are monopolized by several major countries so that they are selling at a high price. In this paper, we present the CFD simulation results on a new target drone that Kyungan co. ltd is developing with their own technologies. The presented CFD simulation was conducted in the same conditions of a wind tunnel tests and we could obtain the simulation results of the lift and drag values were in errors by less than 15 percent compared to the experiment. The simulation results were used to determine the modified shapes of new prototype target drone that could fly safely.

• 한국전산유체공학회:학술대회논문집
• /
• 2010.05a
• /
• pp.584-585
• /
• 2010

A numerical simulation was performed to investigate the internal flow characteristics in gas turbine nozzle by the variation of flow area of the nozzle. In general the area of turbine nozzle is chosen by the most substantial factor on performance improvement of turbine at the first stage. In the performances test through CFD analysis for three types of nozzle with conventional, enlarged and reduced area, reduced one with effective flow area (EFA) was the most efficient. That is the minimum effective value within EFA limit defined by the manual of technical order had a good performance. It is useful to avoid the low power problem in the test of performance after maintenance and overhaul of turbine engine.

• Journal of the Korean Society of Manufacturing Process Engineers
• /
• v.11 no.5
• /
• pp.129-136
• /
• 2012

On this study, $CO_2$ gas, net of Ar gas, and mixed gas in solid wire(AWS ER 70S-6) and flux cored wire(AWS E71T-1) were used to weld on Mild steel(SS400). After the progress, the status changes of the welds in Mild steel(SS400) were investigated with compositional changes. For stable experiments, welding was conducted using the automatic feeder. Radiation testing, hardness testing, chemical composition analysis and penetrated cross-section were measured. Through these experiments, shapes of penetrated cross-section, chemical composition changes, and weld defects according to the variation of welding gas were known. Weld defects and weld cross-sectional shapes by the variation of the welding voltage were also detected.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.8 no.3
• /
• pp.9-17
• /
• 1984

This study was designed to determine some of the socioeconomic and social-psychological determinants of homemker's clothing satisfaction according to location(urban, rural). Multiple regression analysis, t-test, ore-way ANOVA, and Duncan's test were employed to analyze the data. The Results were: 1. Social-psychological variables more influenced on the homemaker's satisfaction with her clothing than socioeconomic variables without the difference of location. 2. There was a difference in stepwise diecending order of importance according to location. 3. Social-psychological variables were influenced by socioeconomic variables, expecially in rural location. 4. There were differences in clothing satisfaction, social-psychological variables and socioe-conomic variables according to location.