• Journal of the Korean Home Economics Association
• /
• v.39 no.6
• /
• pp.41-50
• /
• 2001

The purpose of this study was to investigate the relationship between mother's warmth, control and toddler's attachment security. Subjects were 83 three-year old children and their mothers in Jeonju city. The intruments of this study were the Parenting Style Scale(Cho et at.,1999) and Attachment Q-set(AQS; Waters,1987). Mothers rated the questionnaire and observed a child through AQS at home. The results showed that the mean of the child attachment security was .39 and the range of attachment score was from -0.07 to 0.79. The scores of mothers' warmth and control were above the mean. The child's attachment security was predicted by mother's warmth. Mother's warmth appeared to be meaningful for child to develop the secure attachment. The result of this study suggested that authoritative parenting characterized with warmth and control was significantly associated with the child's attachment security.

• Journal of Information Processing Systems
• /
• v.13 no.6
• /
• pp.1459-1466
• /
• 2017

Recently, the development of the smart home field provides a range of services to install and keep the smart home appliance in a user's residential environment pleasantly. However, the conventional system method is not convenient enough to use properly because users have to select a device and manually operate the device on their own. In this paper, we propose a system to set the priority of the devices selected by the user and proceed with the task. When a user selects a device, the system recommends an optimal device associated with the device. The system compares and sets the priority of each device, carrying out the task one by one according to the set priority. Therefore, the proposed system is expected to provide users with increased convenience and more efficient task management.

• Journal of Korean Home Economics Education Association
• /
• v.6 no.1
• /
• pp.73-92
• /
• 1994

The purpose of this study is to investigate the need of home economics education on high School male students for purpose, the questions raised in this study are as follows. 1. Does home economics education on high school male students needs\ulcorner and are whether not or home economics education on high school male students need different according to sex, age, edu-cation, income, occupation\ulcorner 2. If home economics education on high school male students need or not. What is the reason of that\ulcorner and are the reason of that different according to sex, age, education, income, occupation\ulcorner 3. If home economics education on high school male students need, what is the contents of home economics education and are that different according to sex, age, education, income, occupation\ulcorner The subjects of the study consisted of 183 men and women in Ch’ong ju City(over 21 years old) The data were analiged by statistical procedures such as frequency, X(sup)2, oneway ANOVA, two-way ANOVA, Duncan’s Multiple Range Test. The major results of the study were summarized as follow: 1. The response rate on home economics education on high school male students was absolutely high(91.8%). of demographic variables, the only sex appeared the significant differences. the men groups responsed higher not to need than the women groups. 2. As the reasons of home economics educations on high School male students needing the respons of the highest response rate were that ‘as family community, family members understant, cooperated, and are responsible with each other or one anther’and that ‘as society becomes in-dustrial gradually, family members have to have the accurate perception, or attitudies on home life’of demographic variables, sex, income, and occupation appeard the significant differences. In the contrast of that, as the reaspon of home economics education on high school male stu-dents not needing, the reasons of the highest. response rate were that ‘as sex, the role is different’and that ‘home economics education needs not essentially to learn through the school education’. and there were not differences according to demographic variables. 3. As home economics education contents for high school mal students, the most need content part was child part. the second content part was family development and family relationships part. There was the significant differences according to all the demographic variables. Particulary, the lower the lever of education, in come and occupation were, the less the degree of need on all content part was.

• The Research Journal of the Costume Culture
• /
• v.20 no.2
• /
• pp.154-168
• /
• 2012

This study examined size combination suitability of the underwear sets in home shopping and discussed the degree of consumer satisfaction as well as purchase criteria and evaluation after purchase of women's underwear. The survey was conducted from 1st to 15th September 2010 on a total of 300 women aged between 20 to 50, living in Seoul and Gyeonggi-do region who had bought women's underwear through home shopping. The completed data, 245 out of 300, was used for the final analysis. The analysis conducted in the study with SPSS statistics package includes frequency analysis, reliability analysis, factor analysis, chi-square analysis, $t$-test, ANOVA and Duncan's Multiple Range test. Evaluation items on purchase criteria and evaluation after purchase were processed with factor analysis. The results of the present study showed that product differentiation strategies are required based on age in order to improve consumer satisfaction and repurchase intention in home shopping underwear. Moreover, most of underwear products sold in sets in home shopping are provided based on the brassiere size. As a result, women who do not fit into the home shopping underwear size combination may be less satisfied. When consumers choose their own brassier and briefs size or combinations of various brassier and briefs sizes, it would increase consumer satisfaction.

• Journal of the Korean Society of Industry Convergence
• /
• v.25 no.4_1
• /
• pp.493-504
• /
• 2022

Recently, as interest in eco-friendliness grows, the supply of hybrid electric vehicles and pure electric vehicles (EVs) for improving fuel efficiency of automobiles is rapidly expanding. The average daily energy consumption of electric vehicles is less than 20 [%] of the total ESS capacity of the vehicle, and research on additional functions using the ESS of the vehicle is urgently needed to expand the supply of electric vehicles. V2H(Vehicle to Home), like V2G(Vehicle to Grid), includes the concept of cooperating with system stabilization using ESS of electric vehicles. In addition, it includes various operations that can realize home welfare, such as uninterrupted power supply in case of power outage at home, and power supply for home DC devices. Therefore, in order to expand the supply of eco-friendly electric vehicles, it is urgently required to develop a V2H system with various functions that can realize home welfare. In this paper, we propose a V2H system with a CLLC resonant converter and a non-isolated step-up converter that can solve different impedance and resonant frequencies depending on the power transfer direction. The proposed V2H system is 6 [kVA] applicable to 150-450 [V], the voltage range that can use the ESS voltage for electric vehicles, and is designed with a capacity that can handle instantaneous electricity use at home. In addition, in order to verify the feasibility, an experiment by Psim simulation and prototype production was performed.

• Journal of Korean Physical Therapy Science
• /
• v.31 no.2
• /
• pp.41-51
• /
• 2024

Background: The purpose of this study was to identify the effect of home-based exercise program in elderly with chronic diseases on balance, activities of daily living, depression and quality of life. Design: One group pretest-posttest design Methods: The subjects consisted of 21 elderly people over the age of 65 years with chronic diseases lived in seo-gu, Gwangju. Home-based exercise program was performed twice a week, for an hour, during 6 weeks under supervision of an experienced instructor. The home-based exercise program was structured to last a total of 1 hour, consisting of 10 minutes of warm-up, 30 minutes of main exercises, and 20 minutes of concluding exercises. For the warm-up, we performed range of motion, stretching, and flexibility exercises. The main exercises comprised of strength, weight-bearing and balance exercises, and endurance exercises. The concluding exercises were tailored to the individual's home environment and needs, including task-oriented daily living training such as getting up from bed, moving to the restroom, and walking indoors. The subjects were assessed before and after the exercise program with berg balance scale(BBS), Korean-version modified barthel index(K-MBI), euro quality of life questionnaire 5-dimensional classification(EQ-5D), and geriatric depression scale short form-Korea(GDSSF-K). The collected data was analyzed using SPSS Win 18.0 program. Results: The results showed statistically significant difference in all domains of the BBS, K-MBI, EQ-5D, GDSSF-K after the exercise program. Conclusion: These results suggest that Home-based exercise program has resulted in a significant improvement on ADL, depression and quality of life in elderly with chronic diseases.

• Proceedings of the KIEE Conference
• /
• 1999.07a
• /
• pp.179-181
• /
• 1999

Sensorless PMSM is much studied for the industrial applications and home appliances because a mechanical sensor reduce reliability and increases cost. Most of sensorless algorithm have poor performances in a low speed range. This paper investigates Performance improvement in a low speed range of PMSM. The proposed control scheme is based on the optimization of ratio between the command and dc-link voltages. The experiment is performed in this study. and the result shows the improved Performance in a low speed range.

• Journal of Families and Better Life
• /
• v.9 no.2
• /
• pp.137-153
• /
• 1991

The purpose of this study is to investigate the relationships between the homemaker's stress and their home management behavioral patterns in Money and Time focusing on the Morphogenic & Morphostatic. This research aimed to ' 1) Identify the overall tendency of homemaker's stress & home management behavioral patterns 2) Find out if socio-demographic variables(ie. age of homemakers, level of education, duration of marriage, umber of children, homemaker's employment, socioeconomic status) have significant effects on homemaker's stress and their home management behavioral patterns, 3)Identify the correlation between homemakers' stress and home management behavioral patterns. 4) Find out variables which have independently significant effect on home management behavioral patterns. For these purpose, this research conducted a survey by using questionnaire developed by former researchers. The subjects of this study are 500 homemakers living in Kwangju who have at least one child. The data analyzed occording to frequency, percentage, mean , one-way ANOVA, Duncan's multiple range test. Pearson's correlation and multiple regression. The main findings are as follows; 1) General tendency of the stress level percepted by the homemakers is relatively low 2) socio-demographic variables have significant effects on the stress of homemakers. Among them only homemaker's age. the number of children and socio-economic status have influe d on the stress of urban homemakers. In each area, there are differences among groups; homemaker's age, durations of marriage, number of children in the area of family; age, number of children, socio-economic status in th area of health; age. durations of marriage. number of children, socio-economic status in the area of finance; socio-economic status in the area of household work. 3) General tendency of homemakers behavioral patterns is some what morphostatic. 4)socio-demographic variables have significant effects on the behavioral patterns of home management, a)Homemaker's age, the level of education, socio-economic status is a variable to have influences on home management behavioral patterns of the Money. b)The age homemakers is a variable to have influences on home management behavioral patterns of the time. c)The age of homemakers, duration of marriage is a variable to have influences on the home management behavioral patters of the resources. 5)There are positive relationship between homemaker's stress and home management behavioral patterns . The higher level of stress , the more morphogenic home management behavioral patterns . 6)Influential variables related to management behavioral patterns are homemaker's age, the level of stress, socio-economic status.

• Proceedings of the KIPE Conference
• /
• 2001.10a
• /
• pp.247-250
• /
• 2001

This paper presents a simple and cost effective circuit topology of single-ended type high frequency quasi-resonant PWM inverter using IGBTs, which can operate under wide soft switching operation range based on ZCS for main power switch as compared with a conventional active voltage-clamped ZVS-PWM high frequency quasi-resonant inverter developed previously. In principle, this new circuit topology can efficiently operate under a constant frequency PWM control-based power regulation scheme. In particular, it is noted that the zero current soft switching (ZCS) commutation can achieve for the main active power switch. On the other hand, the zero voltage soft switching (ZVS) commutation can also achieve for the auxiliary active power switch. The operating principle of this high-frequency Inverter treated here and its power regulation characteristics are illustrated on the basis of the simulation and feasible experimental results.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.16 no.2 s.93
• /
• pp.139-143
• /
• 2005

In this paper, we propose the design on LNA and Down-mixer for MB-OFDM UWB using $0.18\;{\mu}m$ CMOS. LNA, Down-mixer design result shows that it covers the frequency range ken 3 GHz to 5 GHz. The LNA gain is larger than 12.8 dB, and noise figure about 2.6 dB. Double balanced differential down-mixer is designed less than 2 dB gainflatness, and it has over 30 dB LO leakage, feedthrough characteristics.