The objectives of this study were to investigate the psychoacoustic properties of PTFE(Poly tetra Fluoroethylene) laminated vapor permeable water repellent fabrics which are frequently used for sportswear, to examine the relationship among fabrics' basic characteristics, mechanical properties and the psychoacoustic properties, and finally to propose the predicting model to minimize the psychoacoustic fabric sound. A total of 8 specimens' frictional sound were recorded and Zwicker's psychoacoustic parameters such as loudness(Z), sharpness(Z), roughness(Z), and fluctuation strength(Z) were calculated using the Sound Quality Program. Mechanical properties of specimens were measured by KES-FB system. Loudness(Z) of specimen D-1 was the highest, which means the rustling sound of the specimen D-1 was the most noisy. Statistically significant difference among film type was observed only in loudness(Z) for fabric sound. Based on ANOVA and post-hoc test, specimens were classified into less loud PTFE film group (groupI) and loud PTFE film group (groupII). Loudness(Z) was higher when staple yarn was used compared when filament yarn was used. According to the correlation between the mechanical properties of fabrics and loudness(Z) in groupI, the shear properties, compression properties and weight showed positive correlation with loudness(Z). According to the regression equation predicting loudness(Z) of groupI, the layer variable was chosen. In groupII, variables explaining the loudness(Z) were yarn types and shear hysteresis(2HG5).
Most widely methods for reinforcement of soil utilized in Korea are anchor method, soil nail method and micro pile method. These methods are classified by the intended use of the structure to be constructed, but the reinforcement of the ground is accomplished contains in common the process of grouting work after inserting the reinforcements. Domestically, gravity grouting has been used mostly so far, but there has always been the risk of insufficient restoration of the loose ground area from the drill holes because the grouting is conducted only by gravity. On the other hand, pressure reinjection grouting may enhance the grouting quality by solving the problem of the existing grouting method considerably since it additionally reinjects grouting through pre-installed tube a certain time after the first grouting. Accordingly, this study evaluated the pullout characteristics by the grouting methods by performing model test on decomposed granite soil, and investigated the support increasing characteristics of reinforcements depending on the curing time, reinjection pressure, and uplift force variation of the pressure reinjection grouting. The result of this research shows that the pressure reinjection grouting demonstrated 1.1~1.3 times of performance of the gravity grouting, and suggests some analysis on optimal water content, reinjection pressure and curing time of the pressure reinjection grouting.
In contrast to the increase in demand for high quality healthcare, there is limited medical human resources such as doctors and nurses so an excessive amount of workload is being forced to them. Therefore, a patient monitoring system using USN(Ubiquitous Sensor Network) is becoming a solution. This paper proposes a patient monitoring system applying USN in maternity hospital to reduce the workload of nurses. According to the efficiency evaluation test based on the model of two university hospitals(S, K University Hospital) and their doctor's diagnosis, the results showed that under the circumstances that one nurse is in charge of 12 patients(6 normal delivery patients and 6 cesarean delivery patients), a total of 1,260 minutes of workload was saved during hospitalization period(5 days). Also, we compared the workload of nurses with or without our proposed system, and the figures showed that in case of normal delivery patients, the workload of nurses decreased by 50 minutes per patient, whereas in case of cesarean delivery patients, the workload of nurses decreased by 130 minutes per patient.
Kim, Sang-Duck;Im, Hyang-Mi;Seo, Ki-Hong;Yoon, Ok-Sook;Kim, Jong-Hun
The Journal of Industrial Distribution & Business
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v.10
no.2
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pp.39-49
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2019
Purpose - Customer loyalty and citizenship behavior are key success factors of franchise system. They make the management of franchisee more effective and efficient. Prior studies, however, mainly dealt with only acquisition utility of customer, such as perceived product/service quality and brand reputation to explain customer loyalty and citizenship behavior, which explains only on one side. We tried to investigate the effect of exchange utility of customer, such as relationship strength and psychological obligation together with the acquisition utility. In addition, we tried to investigate the relationship between customer loyalty and citizenship behavior in franchise context. Research design, data, and methodology - This study used data collected from the dining franchisee managers of 342 franchisors in South Korea. The franchisors consist of more than ten franchisees, the majority of which participated directly in the transaction with franchisor and have worked for more than six months. To test the hypotheses, the study used structural equation model analysis. Results - H1-1, 1-2, 1-3 predicted that acquisition utility would increase customer loyalty to franchisee. In support of H1-1, 1-2, 1-3, the results indicated that acquisition utilities such as perceived product value, perceived service value, and franchise brand reputation had positive effects on customer loyalty. H2-1, 2-2 predicted that exchange utility would increase customer loyalty to franchisee. In support of H2-2, the result indicated that psychological obligation had positive effects on customer loyalty like other acquisition utilities. However, H2-1 was not supported. Relationship strength had no significant effect on customer loyalty. H3 predicted that customer loyalty would increase customer citizenship behavior. In support of H3, the results indicated that customer loyalty had positive effect on customer citizenship behavior. Overall, the evidences generally supported the hypotheses. Conclusion - The results of the study show that not only acquisition utility but also exchange utility increases customer loyalty to franchisee and also show that customer loyalty increases customer citizenship behavior. Interestingly, however, relationship strength has no significant effect on customer loyalty. These results have two implications. The one is that increasing exchange utility can improve customer loyalty as acquisition utility can. The other one is that both of customer utilities can improve customer citizenship via customer loyalty.
The purpose of the study was to test the reliability and validity of the Korean version of Task Self-Efficacy Scale for activities of dally living (ADL). The Task Self-Efficacy Scale was developed by Roberts(1996) for low-intensity exercise study with older people to predict their performance of ADL. The scale was translated and back translated by bilingual persons, and then was modified to resolve variations in the translations. The Korean version of Self-Efficacy Scale for ADL was then administered to 193 elderly people including 95 hospitalized patients and 98 outpatients or healthy people. Face to face interview was used to fill out the structured questionnaire, and each interview took approximately 30 minutes. The subjects for the study were 80 women and 112 men with an age range of 65 to 95 years(M=71 years) of whom 82.6% classified themselves as moderate or quite active Most subjects(80.2%) had an education level of elementary school or less. The Self-Efficacy Scale for ADL is measured on a 0 to 10 VAS, assessing three areas of ADL : self care activities, household tasks, and motor tasks. The higher the score is, the higher person's confidence in performing ADL. Psychometric testing revealed that the scale was found to be internally consistent, showing a Cronbach's alpha of .97 The scale was significantly correlated with subjects' level of activity and subjective assessment of their health status. Moderate correlation with health-related hardiness scale also supported the validity. Factor analysis was performed to confirm whether the scale represents the three sub-areas as suggested in the literature. The results of the factor analysis led to a three factor solution according to Kaiser's criterion, but the items were not strongly and cleanly loaded for the third factor. This can be explained in that, among the three sub-ADL areas of the self-efficacy scale, the areas of self care activities and household tasks seem to have similar levels of difficulty in performance with not enough differences for the self-efficacy scale to distinguish between the two areas. Therefore, one factor solution was suggested since ADL can be seen as a unit of activities at similar level of difficulty in performance. One factor solution explained 68.1% of variance of the 19-item scale and all items were correlated over .6 with the factor, showing that the selected factor solution fits the model. The results indicated that the Korean version of Task Self-Efficacy Scale for ADL was reliable and valid in producing useful information to evaluate the effects of various interventions toward promoting health and quality of life for elderly people.
High school is regarded as the period when many important physical, mental and social developments occur, and when many health-related behaviors are formed. School health education is one of the major learning resources influencing health potential in the home and community as well as for the individual student. High school health education in Korea has a fundamental systemic flaw however, in that health -related subjects are divided and taught under various subjects at school. In order to achieve quality health education, it is essential to assess the learners' and teachers' educational needs. So far, most of the research projects that had been carried out for improving high school health education were limited to only the learners' educational need. They failed to in elude an educational assessment of the teachers. Therefore, in this study the high school health education teachers' needs relating to health education were investigated through a focus on the teachers' health education activity level, health education activity self-efficacy level, and perceived level of importance in health education content. In this study, research instruments these factors were constructed by Yoo(1997) on the basis of the PRECEDE model. The data for this study were collected from a sample consisting of twenty general and vocational high schools in Seoul and Chongju for a two month period beginning in July, 1996. In analyzing the data, an ANOVA test and stepwise multiple regression were accomplished using an SPSS - PC+ program. The results were as follows: The average level of health education activity and self-efficacy among high school health edu cation teachers were found to be low. But, teachers' perceived importance of health education contents was high. Teachers' activity and perceived importance concerning sex education were lower than in other health education areas. Health education activity of Military drill teachers was higher than that of physical education teachers as well as school nurses. But it was not significant. Health education activity self-efficacy of school nurses was higher than that of other teachers(p<.05). Perceived level of importance of health education contents was the most influential variable in teachers' health education activity. Health education activity self-efficacy level was not an influential variable in teachers' health education activity. The significance of this study is that it has diagnosed the needs of high school health education through the teachers' assessment of a variety of health factors related. These findings suggest that the management of an integrated health education, program requiring large changes in the curriculum of health education is necessary.
In phase 1 of the study, data for the construct and items of KESAS(The Korean Elderly's Successful Aging Scale) were collected by indepth interviews with a purposive sampling group of 25 elderly people and focus group interviews with four groups. Content analysis was applied to the data and from this analysis were emerged six key categories of successful aging. In phase 2 of the study, 78 items were collected from the data of 2 sets of interviews mentioned above. Through pilot test, preliminary 66 items are selected. In phase 3 of the study, 597 cases collected from the survey were divided randomly into 345 developmental samples and 252 validity samples. The items were examined exploratorily with the developmental samples and confirmatorily factor analysis with validity samples. Confirmatory factor analysis supported the hypothesized six-factor structure of KESAS, which finally resulted in consisting of 31 items. Six factors are as follows: 'autonomous life', 'self-completion orientation', 'positive life participation', 'satisfaction with one's offsprings', 'self-acceptance', 'other-acceptance'. Cronbach's alpha estimate and split-half estimates of the scale were .903 and .845, which confirms that the scale has reliability. This six-factor model exhibited a good fit on the basis of the overall fit measure criteria(TLI=.983, RMSEA=.057) aquired by using the confirmatory factor analysis. Moreover, KESAS was significantly related highly(r=.72) to the 'Quality of Life for the Korean Elderly'. This proved concurrent validity of the scale.
Kim, Kwang-Ji;Ahn, Su-Hyang;Kim, Yu-Jin;Lee, Jung-Hun;Park, Ki-Yong
Culinary science and hospitality research
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v.18
no.1
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pp.104-119
/
2012
The purpose of this study is to suggest a way of the efficient operation of university foodservice through the Importance-Performance Analysis and examine a causal relationship between selection attributes and satisfaction. A survey was carried out in class, and after excluding 12(A University) and 20(B University) unusable cases which had an unacceptable level of missing data, 108 out of 120(A University) and 104 out of 124(B University) cases were used for analysis. As for A University, IPA showed that taste, variety, food cleanliness, table cleanliness, and tableware cleanliness were included in the concentrating efforts items. As for B University, IPA showed that taste, variety, and table cleanliness were in the concentrating efforts items that university foodservice managers should improve. Also, through t-test difference analysis on selection attributes of A University and B University in the research model, this study confirmed that both A University and B University displayed positive difference in personal services. And, through regression analysis, food quality had a positive influence on satisfaction.
Kim, Dae-Hyun;Lee, Yoon-Seok;Oh, Young-Sook;Choi, Chang-Bon;Yeo, Jung-Sou
Journal of Animal Science and Technology
/
v.50
no.6
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pp.775-782
/
2008
This study was aimed to find SNPs related with marbling score in Hanwoo(Korean cattle) using BcSNPdb. This study was searched QTL region related with marbling score and extracted 3,605 SNPs by applying BcSNPdb. Among these SNPs, 347 nonsynonymous SNP were selected and 160 SNPs were verified by PCR and finally proven with application to experimental data of the national progeny test. BTS_003888, BTS_012665 and BTS_009454 candidate SNPs were revealed significantly associated with marbling score(P<0.05), and BTS_025951 candidate SNPs was significantly associated with backfat thickness(P<0.05). From the result, SNPs from BTS_003888, BTS_009454, BTS_052584 and BTS_025951 were considered to be useful for the advancement in selective improved model in marbling score and backfat thickness of Hanwoo.
Journal of the Korea Academia-Industrial cooperation Society
/
v.20
no.11
/
pp.282-293
/
2019
Purpose: After developing and imparting knowledge of a simulation-based emergency airway management education program for nursing students, this study identified the effects of the education by evaluating emergency airway management knowledge, Clinical Performance Ability, self-efficacy, and critical thinking disposition. Method: The participants were 30 nursing students. Data were collected from October 14 to November 11, 2017, and analyzed using IBM SPSS Version 22.0. Results: The simulation-based nursing education program was developed and applied based on the ADDIE model involving five stages: analysis, design, development, implementation and evaluation. Comparing the pre-and post-education results, we observed statistically significant improvement when considering emergency airway management knowledge (t=-9.98, p<0.001), Clinical Performance Ability (t=-23.90, p<0.001), self-efficacy (t=-16.77, p<0.001), and critical thinking disposition (t=-5.04, p<0.001). Conclusions: Simulation-based emergency airway management training program is an effective educational program that enhances the emergency airway management knowledge, Clinical Performance Ability, self-efficacy, and critical thinking disposition of nursing students. We believe that the program developed in this study contributes towards improvement of patient nursing quality by enhancing the ability of nursing students to cope with emergencies in practice. Furthermore, it can be applied for educating new nursing students, and contribute to the development of nursing practices.
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