• Korea-Australia Rheology Journal
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• v.17 no.2
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• pp.87-95
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• 2005

In this study, we performed RTD measurement at the die exit of co-rotating twin-screw extruder using a non-destructive ultrasonic device. The ultrasonic device was attached at slit die and was composed of a steel buffer rod and 10 MHz longitudinal piezoelectric ultrasonic transducer. This in-line ultrasonic monitoring method is based on the ultrasonic response of $CaCO_3$ filled in polymer. The RTD is evaluated by variation of ultrasonic attenuation with time caused by change of the tracer concentration during extrusion. The ultrasonic tracer, pellet type of compounded $CaCO_3$ in polymer was used in this study. The effects of tracer concentration on RTD and flow patterns were studied. Evaluation for the residence functions at different screw speeds, feeding rates and screw configurations were also carried out.

• Journal of muscle and joint health
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• v.27 no.3
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• pp.316-324
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• 2020

Purpose: This study aimed to investigate the relationship between the subject's self-esteem, major satisfaction, and interpersonal ability, and to identify factors that affect interpersonal relationships. Methods: The subjects of this study were 135 nursing college students in the third and forth grades enrolled in a college located in B Metropolitan City. Data were collected using a structured questionnaire was used, and the data collection period was from July 13, 2020 to August 9, 2020. Results: The average degree of self-esteem, major satisfaction, and degree of interpersonal relationship were relatively high. The interpersonal relationship ability according to the general characteristics of the subjects showed significant differences in religion, residence type, departmental friend, health status, and satisfaction with clinical practice. The factors influencing the subject's interpersonal relationship ability were in the order of self-esteem, major satisfaction, good health, and traces of residence. Conclusion: Based on the results of this study, it is considered necessary to develop a nursing intervention program that can enhance the interpersonal skills of nursing college students.

• Asian Journal of Atmospheric Environment
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• v.11 no.3
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• pp.184-193
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• 2017

People spend the majority of their time in indoor environments. Maintaining adequate indoor temperature and humidity is necessary to support health and improve quality of life. However, people with low incomes can be vulnerable because they may not be able to use effective cooling and heating systems in their homes. In this study, the indoor temperature and humidity in low-income residences over a year in Seoul, Korea was characterized. Indoor temperature and humidity were measured in three types of homes (12 rooftop residences, 16 basement residences, and 18 public rental apartments) occupied by low-income residents. Both differed significantly among the three types of residence, particularly during the summer and winter seasons. A regression model between indoor and outdoor temperature detected a heating threshold at $3.9^{\circ}C$ for rooftop residences, $9.9^{\circ}C$ for basement residences, and $17.1^{\circ}C$ for public rental apartments. During tropical nights and cold-wave advisory days, rooftop residences showed the most extreme indoor temperatures. This study demonstrates that people living in rooftop residences could be at risk from extreme hot and cold conditions.

• The Korean Journal of Community Living Science
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• v.15 no.2
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• pp.159-166
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• 2004

This study was undertaken to investigate the severity of depression and to analyze various factors related to depression in chronic back pain patients in urban-rural areas. In this study, 30 patients who suffered from back pain more than 6 months, and 30 normal subjects who had similar demographic characteristics as the patient group were evaluated using the Back Depression Inventory(BDI). Various factors such as age, sex, causes of back pain, vocational history, pain continuity, visual analogue scale(VAS), duration of pain, type of management, and urban or rural residence were recorded for the study group. The results are 1) The study group revealed higher BDI scores than the control group(p＜0.05). 2) The patients who were older and had higher VAS, longer duration of pain, or previous history of surgical management for back pain, and an urban 033residence revealed higher BDI scores(p<0.05). 3) The BDI scores were not significantly influenced by the subjects' sex, causes of back pain, pain continuity, and vocational history in the study group(p>0.05). From this study, we concluded that a Psychosocial approach is required for the management of chronic back pain patients. Also, it is necessary to assess the factors, which are making depression worse in other chronic diseases for comprehensive rehabilitation.

• Journal of Technologic Dentistry
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• v.34 no.2
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• pp.157-164
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• 2012

Purpose: The purpose of this study was to survey periodontal status using oral health index in the elderly population and determine methods for improving oral health status. Methods: The date collected from 'The fifth korean national health and nutrition examination survey 2010' was analyzed in this study. Statistical analysis was done using the Statistical Package for Social Sciences version 19.0 for windows. We determined frequencies and percentage, calculating means, and standard deviations, and determining statistical significance using logistic regression analysis, multiple regression analysis. Results: General characteristics showed differences in oral health behaviors associated with gender, age, residence, education. General characteristics showed differences in periodontal status associated with gender, family type, gender, residence, education. Oral health behaviors showed differences in periodontal status associated with using oral health care products, dental treatment. Conclusion: In conclusion, in order to improve oral health of the elderly, the importance and needs of periodontal status should be emphasized. periodontal status related education for the elderly should be operated.

• Journal of the Korean Society of Clothing and Textiles
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• v.29 no.3_4 s.141
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• pp.576-584
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• 2005

The purpose of this research was to consequences of the sale effect derived from similar type of personality between the customer and the apparel salesperson. For the purpose of the verifications, random survey is made to 225 people over 20 years in age among the residence in the district of Seoul and using SPSS program, the reliability, frequency and crosstabs. The results of this study as follows: 1) In the fashion apparels of higher level of involvement, lower assertiveness but carefulness and analytic attitude of the salesperson is preferred rather than the customer's personality. 2) Difference are shown of the consequence of the sale effect by the corresponding type of the personality, depending on the degree of the involvement. 3) As for the level of the influence of the sale effect by the concordance of personality type depending on profession, student group are more conscious rather than the professional group in the aspect of concordance of personality type with salesperson.

• Journal of the Korean Institute of Rural Architecture
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• v.1 no.3
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• pp.45-52
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• 1999

As a traditional agricultural society changes into an industrial society due to an industrialization policy since the 1960's, there is a tendency of decrease in population and being old in a rural area. Also there has been a remarkable decrease in the rate of large family and families of over three generations as a family type changes from a large family system to a nuclear family one. According to resent studies, the rate of families of the old over 65 in a dong area is 17.0%, While that in eup and myon areas is 35.3% This shows the rural exodus of the young caused by urbanization. The purpose of this study is to compare and analyze consciousness of residence by studying satisfaction of each room of a house by type of living-together in a rural area. On the basis of this, to provide data for planning various residential environment by change of type of living-together in a rural area.

• Journal of KSNVE
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• v.10 no.1
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• pp.41-48
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• 2000

Evaluation model for damage consciousness was established through the survey of 2,210 residents' consciousness on aircraft noise near Taegu Airport. There were none who replied that the level of the aircraft noise was as los as it was quiet. 77(3.5%) people replied the noise was normal, and 2,133(95.5%) people said it was noisy. As to the period of time when the aircraft noise occurred, 51%, 97%, 86%, 0.6% of the residents pointed out the morning time, the day time, the evening time, and the night time, respectively. Because of aircraft noise, 73%, 88%, 70%, 77%, 78%, and 33% of the residents felt it disturbing indoor conversation, telephoning, watching TV or listening to the ratio, reading or meditating, working, sleeping, and studying, respectively. It was examined that the bad effects of aircraft noise on the health were severe : 43% of the resident said they experienced embarrassment. 52% astonishment, 66% absence of mind, 61% heart-beating. 77% headaches, 78% earache, and 93% displeasure. For the survey of the residents' damage consciousness about aircraft noise, the level of aircraft noise was set as an objective variable, and gender, age, occupation. Education, the type of house, the structure of windows, the consciousness of settlement in the district, and the period of residence were set as explanatory variables. And the quantification theory I was applied to the analysis. The most influencing factor of the damage consciousness on aircraft noise was the education, the second occupation, the third age, the forth the consciousness of settlement, the fifth the period of residence, the sixth gender, the seventh the type of house, and the least influencing factor among them was the structure of windows. These findings will be a useful guideline when the government seeks to set up policies which will help solve the resident's noise problems near Taegu Airport.

• Journal of the Korean Society of Food Culture
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• v.10 no.5
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• pp.391-404
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• 1995

This study was carried out to investigate the differences of the dietary behavior of the college students by the type of the residence, that is, home-living, dormitory-living, and self-cooking. The responses of 307 students to the questionaire were analyzed. The average meal frequency of the students was 2.4 times a day. Breakfast was skipped most frequently, especially in dormitory-living and self-cooking students compared to home-living ones. Forty-three percent of the students were found to eat breakfast less than twice a week. Such a poor eating habit was mainly due to insufficient time or idleness. When the quality of the meal was evaluated, dormitory-living and self-cooking students had worse scores than home-living ones. The formers had poor dietary habit in terms of balanced breakfast and food diversity of each meal compared to the latter. Fast foods and coffee were consumed more frequently by dormitory-living and self-cooking students than home-living ones. The main food they eat was rice. However, female dormitory-living students had a higher tendency to enjoy bread for breakfast and noodle for dinner compared to the other groups. Home-living and self-cooking students had snack more frequently than dormitory-living ones, and female than male. In terms of snack time, most of the respondents had snack between lunch and dinner or after dinner. The percentage of those who had snack after dinner was greater in dormitory-living and self-cooking students than home-living students. Results of the food preference test showed that their favorite dishes were fruit salad, Bulgogi, uncurdled Tofu stew, Kimbab, and boiled rice. We observed that dormitory-living and self-cooking students had more problems in their dietary behavior. Therefore, they need to learn how to manage their own meals. This study might be helpful to develop nutrition education materials for the dietary improvement of the college students.

• Journal of East-West Nursing Research
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• v.12 no.1
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• pp.43-55
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• 2006

Purpose: This study was a descriptive study to assess the relationships between acculturative stress and current perception of stress in Korean immigrants. Methods: The subjects consisted of 154 community-dwelling Korean immigrant living in the USA. Data collection was conducted through the use of questionnaires. The instruments for this study were Acculturative stress (12 items), The Global Assessment of Recent Scale(8 items). The collected data were analysed using SPSS PC 12.0 Programme for Frequency, Percentage, t-test, ANOVA, Duncan test and Pearson's correlation coefficient according to the purpose of this study. Results: 1) The average item score for acculturative stress was 17.17. The average item score for current perception of stress was 26.56. 2) Acculturative stress was positively related to current perception of stress (r=.360, p<.01). 3) Acculturative stress was significantly different according to educational level (F=2.709, p=.047), occupation (F=16.202, p=.000), perceived income comfort level (F=26.666, p=.000), and type of residence (F=2.672, p=.050). The Current perception of stress was significantly different according to age (F=7.380, p=.000), marital status (F=5.354, p=.006), perceived income comfort level (F=12.738, p=.000), and type of residence(F=4.207, p=.007). Conclusion: Theses findings help to clarify relationships between acculturative stress and current perception of stress in Korean immigrants. Therefore, the result of study provide clues for the quality of life of Korean immigrants.