• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.38 no.8
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• pp.774-780
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• 2010

This paper deals with the choice of guidance gain for the time-to-go polynomial (POLY) guidance law when the acceleration limit is existed. POLY is derived based on the assumption that guidance commands are formed by a time-to-go polynomial function. The main characteristic of POLY is that any positive values can be used for its guidance gain. For this reason, it is ambiguous to choose a proper guidance gain. To relieve this difficulty, we firstly derive the closed-form solution of acceleration command and figure out the relationship between the maximum acceleration and guidance gain. From this analysis, we provide a guideline for choosing a guidance gain which satisfies the desired acceleration limit. Finally, the proposed method is demonstrated by simulation study.

• Journal of Families and Better Life
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• v.35 no.2
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• pp.47-61
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• 2017

The purpose of this study was to examine the influences of mothers' beliefs, guidance, and use of resources for writing on young children's writing ability. A total of 450 children aged 3 to 5 years and their mothers from 6 different provinces participated in this study. The results of this study are as follows. First, mothers conducted more writing guidance to older children. And their beliefs and use of resources for conventional writing were reinforced as children got older. There was no difference in mothers' beliefs and use of resources for emergent writing according to children's age. Second, mothers' beliefs, guidance, and use of resources for children's writing were robustly correlated. These correlations were prominent in each factor of emergent or conventional writing. Third, mothers' writing guidance and use of emergent writing resources had positive effects on children's writing ability, while the use of conventional writing resources had a negative impact.

• Journal of environmental and Sanitary engineering
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• v.2 no.2 s.2
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• pp.49-60
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• 1987

The incidence of Sexually Transmitted Disease has risen despite the progress in its diagnosis and treatment methods. For the effective control programs of S.T.D it should be required medical and social approaches. This survey was conducted in Young Dung Po and Sung Buk areas from June, 1986 to September, 1986. The 1185 prostitutes were studies in order to determine the prevalences of sexually transmitted disease. The results were as follows: 1. The average age of prostitutes was $24.0\pm3.9$ years. The age group of 21-25 years old was the highest level of about $70.3\%$. 2. The positive rate on non Gonococcal urethites was $9.1\%$ at Sung Buk area and $15.3\%$ at Young Dung Po area. 3. The positive rate of Neisseria Gonorrhoeae on culture of TM media was $6.4\%$ or total level and incidence ratio of Neisseria Gonorrhoeae: Non Gonococcal urethritis was 1: 1.7. 4. The positive rate of PPNG was occupied about $26.3\%$ among the total NG positive case. 5. The positive rate of VDRL Slide Test was $2.9\%$, and antibody Titer level of 1:2 was $38.8\%$. it was the highest of all Titer distribution.

• Korean Journal of Human Ecology
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• v.10 no.1
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• pp.127-139
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• 2001

The purpose of this study was to find out the relationships among the elderly's self-esteem and life-adjustment according to decision-making power in their family. Interview survey was conducted and were selected. 296 over age 60 who lived in Jeonju. Frequencies, Percentiles, Pearson's correlation, t-test, ANOVA and Duncan's method were utilized for data analysis. The findings of this study were as follows ; 1) Decision-making power of the elderly in family had significant differences according to sex, coresiding with married children, and the sum of monthly personal expenses. 2) Elderly's self-esteem had significant differences according to sex, the present job, the situation of a spouse, and the sum of the monthly personal expenses. 3) Elderly's life-adjustment had significant difference according to residence type, the present job, the situation of a spouse, religion, education, and the sum of the monthly personal expenses. 4) Clothing and food in family had significant differences according to sex. 5) The elderly men's self-esteem had positive relationship with housing, sons and daughters guidance, grandchildren care, and family event and etc. But the elderly women's self-esteem had positive relationship with food, grandchildren care, and family event and etc. 6) The elderly men's life-adjustment had positive relationship with clothing, food, housing, family economy, sons and daughters guidance, grandchildren care, and family event and etc. But the elderly women's life-adjustment had positive relationship with food, housing, sons and daughters guidance, grandchildren care, and family event and etc.

• Korean Journal of Human Ecology
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• v.21 no.5
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• pp.837-848
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• 2012

This study evaluated the types of daily routines that occurred in child care centers based on four general categorizations: time spent on indoor free choice activities, outdoor activities, group activities and special activities. In addition, resulting child care teacher behaviors were examined based on daily routine types. A total 23 classes' activity times and teacher behaviors were observed. The collected data were analyzed using descriptive statistics, hierarchical cluster, and Mann-Whitney U. Results indicated that there were 2 principle daily routine, 'indoor/outdoor activity time oriented' and 'group activity time oriented'. Analysis showed that teachers who belonged to the 'indoor/outdoor activity time oriented' type showed more positive affect, positive guidance, neural guidance, and less non-involved behavior. Results suggest the importance of time spent on free choice activities in the context of daily routine for quality childcare.

• Hwankyungkyoyuk
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• v.17 no.1
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• pp.112-121
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• 2004

An activity of nature experience guidance can be considered as an educational event, thus, I regarded the volunteers as the guides of nature experience and examined closely their guidance activities as a participant to provide in-depth description about their behavior, context, and changes in ethnographic view. In this study I raised two following questions; 1) how have the guides been changed through two types of activities and 2) what problems are brought up in their context. First, the volunteers acquired awareness and sensitivity to the total environment and its related problems during course of training, even though they were initially motivated to participate in training course for their children. Second, guidance activity improved their basic understanding of and views toward the environment, awareness of the total environment, attitudes to environment, skills in solving environmental problems and participation levels in working towards resolution of environmental problems. However, they had difficulties in communication with each other and since nature experience guides are wives and mothers they worked against time and needed support from their family. Further studies will continue on analysis of training programs for the guides to improve and to contribute guide's positive changes to non-formal environmental education.

• Korean Journal of Child Education & Care
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• v.19 no.2
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• pp.165-176
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• 2019

Objective: The purpose of this study is to develop a measure of the Early Childhood Teacher's Guidance Efficacy Scale based on guidance and teacher-efficacy theory. Methods: This subjects were 243 teachers in Seoul and Gyeonggi-do. Results: An exploratory factor analysis was conducted on the data collected of 4 factors, namely, guidance efficacy for problem behavior, children understanding, home-connected, basic life habits. In addition, there are significant positive correlations between the sub-area score and the overall in the early childhood teacher's guidance efficacy scale(r = .26 ~ .72, p < .001). Internal consistency and split-half reliability of each sub scale were reasonably accept. Conclusion/Implications: 'The guidance efficacy scale for early childhood teachers' developed in this study is an appropriate tool. Therefore, the developed scale can become a useful tool to measure the overall guidance efficacy level of early childhood teachers.

• Journal of the Korean Home Economics Association
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• v.42 no.4
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• pp.167-177
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• 2004

The purpose of this study was to examine the relations of peer competence to children's interpersonal problem solving skills and mothers' parenting behavior. The subjects were 88, 6-year-old children and their mothers. Instruments used included the Peer Competence Scale, PIPS, and the revised version of IPBI. The data were analyzed with Pearson correlations, partial correlations, and stepwise regression. Children's sociability was explained mostly by mothers' intimacy-reasoning guidance, parental involvement, and children's positive alternative Solutions. Children's prosocial behavior was explained mostly by mothers' intimacy-reasoning guidance and children's positive alternative solutions. Children's leadership was explained most by mothers' involvement and Omit selling in parenting.

• Journal of Distribution Research
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• v.1 no.1
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• pp.109-127
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• 1996

The purpose of this study was to represent hypotheses of the interrelationship of the level of cooperation, conflict, and performance and to report the findings testing the hypotheses in car channels. This study provides some general guidance toward better cooperation, conflict, and performance management. The results indicate that noncoercive bases of power and dependence hale a positive effect on cooperation, while the proposed inverse relationship between coercive bases of power and cooperation is not statistically significant. Coercive bases of power have a positive effect on conflict, while conflict is not statistically significant for noncoercive bases of power, dependence, and cooperation. Finally, cooperation has a positive effect on dealer performance, but conflict has a negative effect on dealer performance.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.05a
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• pp.493-496
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• 2003

It was difficult for high school teachers to guide the careers of their students on the behalf of the time and place limits. Accumulation and sharing datum about career guidance was not easy, either. This study aims at more systematic and objective career guidance and counseling by overcoming the current problems using Data Mining Techniques for career guidance. Moreover, the systems can also be helpful to students who use this positive search system based on world wide web for the career information on the basis of their own need.