In order to study the effect of modified atmosphere storage on extending shelf life of King Oyster mushroom was wrapped with PVC film and packed with 20$\mu\textrm{m}$polyolefin(PD941), and effects of temperature(0, 5, 10$^{\circ}C$) in packaging conditions on the respiration and keeping qualities were evaluated. Higher respiratory activity and weight loss were observed at higher temperature. The concentration of O$_2$and CO$_2$ of PVC wrap and polyolefin(PD941) packages for all showed 1∼2% and 10∼14%, respectively. Polyolefin(PD941) package wan superior to the PVC wrap packaging method in Hardness, Hunter L value, Hunter b value and sensory qualities, and reducing weight loss at 0$^{\circ}C$, 5$^{\circ}C$ and 10$^{\circ}C$ compared to PVC wrap. It was found that the optimum shelf-life period of King Oyster mushroom packaged by PVC wrap was estimated to be 50, 28 and 12 days at 0, 5 and 10$^{\circ}C$, respectively, and 50, 32 and 21 days in Polyolefin(PD941).
The purpose of this study was to identify the variables of foodservice employees's job satisfaction. The questionnaires to measure job satisfaction were completed by 323 employees in the Gyunggi province. Foodservice employees' job satisfaction was evaluated by the modified Smith method(1969). All statistical data analyses were conducted using the Statistical Package for the Social Science(SPSS version 12.0). The study results were as follows; 1. The demographic data showed that 65.3% of respondents aged in 40~49 years old, 96% were married, 68.8% were high school graduates, 10.2% were college graduates and 93.5% were contracted employees. 2. Factors that influenced job satisfaction among employees varied significantly. Older workers tended to be more satisfied in their job. In addition, those who had graduated college showed the highest job satisfaction score(3.03). Subjects who had graduated university showed the lowest job satisfaction score(2.05). Subjects who had worked for 2-3 years showed the highest satisfaction scores concerning their relationships with coworkers(3.33), whereas those who had worked less than 2 years showed the lowest (3.14). Regarding school type, employees working in high schools had the highest job satisfaction scores, whereas those working in middle schools had the lowest. Satisfaction of leaving school time, ‘after 4 pm group’ had the highest score(3.01). 3. The correlation between salary satisfaction and job satisfaction was significant(r=0.307, p<0.001). In addition, the correlation between job satisfaction and work satisfaction was also significant(r=0.444, p<0.001). The correlation between job satisfaction and satisfaction about relations with coworkers was significant(r=0.118, p<0.01). The correlation between salary satisfaction and work satisfaction was significant(r=0.308, p<0.001). The correlation between salary satisfaction and satisfaction about relation with coworkers not significant, but it was negative(r=0.307, p<0.001). The correlation between work satisfaction and satisfaction about relations with coworkers significant(r=0.210, p<0.001). According to this study, job satisfaction and salary were positively related. This study provides foodservice managers useful information for design positions that will increase productivity. Future study is needed to determine the factors that will improve job satisfaction and satisfy the employees' needs, which in turn will improve school food service quality.
Journal of the Korea Academia-Industrial cooperation Society
/
v.10
no.6
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pp.1317-1328
/
2009
As a study on how the Neurofeedback training effects on young children's brain function and intelligence, first, this paper aims to verity the effect Neurofeedback training brings to the function of young children's brain. Second, through K-WPPSI IQ test, analyses how Neurofeedback training influences on the development of young children's intelligence. The subjects of this study were the 60 five-year children attenging J kindergarten in Cheon-an, experimnet treatment was performed according to Neurofeedback training guidance from Aprile 21 to December 12, 2008. It analyzes the states of brain waves before and after the Neurofeedback training, and performed the statistical analysis through t-test, using SPSS for Window(V.13.0) package. As a result of analysis, it was shown that firstly Neurofeedback training was very effective on the d!evelopment of infan's brain intelligence, since the quotient to evaluate the entire brain function appeared to have a meaningful influence. Secondly, it was proved that Neurofeedback training had much influence on the object assembly-area, the maze-area, and picture completion-area, and that it had the same influence on the performance intelligence quotient too. So, such results as these one make us realize that Neurofeedback training is a very effective method to the development of performance intelligence quotient. Thirdly, they indicate that Neurofeedback training hasn't a meaningful influence on verbal intelligence quotient, since it affects only on the similarities area among verbal intelligence quotient, the total evaluative quotient.
This study was conducted to investigate the effects of pretreatment and different packaging methods on the physicochemical properties of cold vacuum-dried peaches. All the dried peach samples were stored such as $N_2$ gas substitution, vacuum and passive packaged with polyethylene (PE) film and oriented polypropylene (OPP)/aluminum (Al)/PE film at $40^{\circ}C$ for 50 days. The weight change, pH, soluble solids content, titratable acidity, soluble solid-acid ratio (SS/TA), delta E, browning degree and phenolic compounds were analyzed. The weight change and pH were lower in the 0.1% vitamin C-treated group and were significantly lowest in the vacuum-treated OPP/AL/PE. The soluble solids content and the SS/TA were higher in the non-treated groups than in the vitamin C-treated groups. According to the packaging methods, the $L^*$ values were higher in the vacuum, $N_2$ gas and passive package, in that order. In addition, the browning degree and the delta E value were lower in the pretreated groups and significantly lowest in the vacuum-treated OPP/AL/PE with 0.1% vitamin C group. The phenolic compounds were high for the pretreated groups, according to the packaging methods (vacuum > $N_2$ gas> passive), and the OPP/AL/PE was significantly higher than the PE. These results suggest that different packaging materials and pretreatment methods affected the quality of the dried peaches, and the vacuum-OPP/AL/PE film packaging group showed a high quality.
Purpose: We propose an effective marketing strategy for eyeglasses stores on the basis of surveys about the relationships between customers' social values, customer satisfaction and selecting glasses store. Methods: All 245 surveys were conducted about customers had visited the eyeglasses store located in Seoul and Northern Gyeonggi-do regions from January 1 to June 30, 2014, and it were analyzed by SPSS v.20.0 statistical package program. Results: The order of customers' social values factors which have an influence on 'Selecting Store' is "Society oriented", "Ability oriented", "Freedom oriented" and "Happiness oriented". Also, the order of customers' social values factors which have an influence on satisfaction is "Society oriented", "Ability oriented". In addition, Customer Satisfaction is affected by Service, one of the factor of 'Selecting Store' factors. Conclusions: Each type of marketing activities should be conducted for customers by their various values. The best plan to elicit good reactions from customers is meeting them through "Society-oriented" factors. Meeting with customers through the "Ability-oriented" factors is second only to the best option. It is shown that the method to increase the satisfaction for customers' return visit is to manage 'Service factors' well.
This study compares the visual elements of the top five global beer brands currently in the Chinese market with those of the top five Chinese beer brands. The purpose of the research is to identify the importance of visual elements in the label design of beer package and to present the direction of efficient label design. To this end, it is a brand among visual elements of beer label design, and it investigates the label design of Chinese beer and global beer brand through the multi-accelerated comparative analysis method, focusing on color, illustration and layout, and analyzes the difference of elements appearing in the global beer label design from China by utilizing the recursive five-point scale. According to the research, the visual elements used in the Chinese beer brand were more complex compared to the global beer brand, and most layouts were similar, making the product less differentiated. On the other hand, the global beer brand has secured brand identity and differentiation based on its iconic visual elements and diversity of layout. In order to establish itself as a strong brand in consumers' minds, the Chinese beer brand needs differentiated label design through active use of unique brand design.
This study reports on initial founder performance and satisfaction that is affected by mentoring skills and mentoring functions. Through the empirical analysis, seen the initial founder performance and satisfaction as a respective dependent variable, this study intends to provide efficient direction of the responsibility mentor and present a method that enhances the survival of the initial start-up founder. The frequency analysis was conducted to determine the general characteristics of the sample, by leveraging the statistical package SPSS 20.0 for Windows program, details of the items measuring tools present a statistical analysis of sample data, 120 people have gathered in the survey data for this factor analysis was performed with a correlation to classify each region was calculated to Cronbach's ${\alpha}$ factor to determine the reliability of the measurement tool, and tested the hypothesis using linear regression analysis for verification. Was found to play an important role to draw the founder and mentor mentoring skills and capabilities in early stage start-ups, and conclusions drawn from this process. In particular, modeling of the mentor with a sound mind and behavior brought the better performance and satisfaction of the initial start-up founder. If a mentor provides mentoring with more interests in career development and psychosocial functions of the mentoring functions, it is seen to be more efficient way to improve survival rate of initial start-up as well as increasing a founder's performance and satisfaction.
Journal of the Korean Society of Food Science and Nutrition
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v.32
no.8
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pp.1292-1296
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2003
The purpose of this study is to investigate the changes of physico-chemical properties of chilled plaice muscle, stored at 4$^{\circ}C$ for 0 ∼ 21 days, with different packaging methods (vacuum packaged with PVDC and aerobic packaged with HDPE). pH value in aerobic packaged plaice muscle (APPM) decreased from 6.3 to 6.09 at first 2 day storage, and then increased gradually during storage time. Although pH pattern of vacuum packaged plaice muscle (VPPM) was similar to that of APPM, change of pH value during storage time was slower and lower than APPM. VBN value in aerobic packaged one increased during storage time. Especially it increased significantly after 7 days of storage. While VBN value in VPPM increased only a little to 14 days. TBA value showed significant difference between APPM and VPPM. WHC of APPM was higher than that of VPPM after 7 days of storage. In electrophoretic pattern of myofibril of APPM stored for 14 days hydrolysis of heavy chain and tropomyosin was observed. However, in VPPM, some hydrolysis occurred only in heavy chain. SDS-PAGE analysis showed that hydrolysis of VPPM occurs later than that of APPM.
Journal of Korean Academy of Nursing Administration
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v.9
no.3
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pp.429-445
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2003
Purpose : The present study attempted to consider the degree of consciousness of economic ethics in nursing students and the factors affecting these perceptions. Method : A survey was conducted to a total of 874 nursing students from the freshmen and seniors of 11 depts of nursing science nationwide selected by convenience sampling (one for each province, and as for Gangwon-do, two schools were selected from Yeongdong area and Yeongseo area ; 13 male students were excluded). A structured questionnaire was used to collect data on their demographic characteristics and economic ethical perceptions. Collected data were analyzed using the SAS V8.1 statistical package. Result : (1) The score for the economic ethical consciousness of the subjects was $36.76{\pm}10.20$. As for each sub-categories, the score for industry was $7.67{\pm}2.77$; thrift, $7.42{\pm}2.37$; cooperation, $7.41{\pm}2.21$; occupational consciousness, $7.18{\pm}2.20$; and, for consumption, $7.02{\pm}1.90$. The score for the consciousness of consumption was the lowest. (2) Among the demographic characteristics of the subjects, age was found to have a statistically significant positive relation to the consciousness of economic ethics(r=.13, p<.001). The next significant factor was grade: seniors seemed to have a higher economic consciousness in all the sub-categories than freshmen(t=-4.32, p<.001). The number of in-home family has a statistically significant negative correlation with economic attitudes(r=-.15, p<.001). In addition, their economic ethical perceptions were significantly higher with no religion (t=2.14, p<.05); have an unemployed father (t=2.78, p<.05); have credit cards under their own names (t=3.04, p<.05); have ever had overdue card bills (t=4.25, p<.001); have ever had part time job(t=1.74, p<.1) and when they don't live with their parents (t=-2.01, p<.05). 3) A multiple regression analysis was conducted to examine the influential power of the factors affecting the consciousness of economic ethics of the subjects. The factors had more influence on the economic attitudes of the seniors than those of freshmen; in those who having credit cards under their own names than under others; and, in those who have ever experienced credit default than those haven't. Though these factors raised average 3.0 points of economic consciousness, their expository power for the consciousness were low. Conclusion : The nursing students had medium-high consciousness of economic ethics and they seemed to have low consciousness of the proper consumption practices. Their actual life experiences had an influence on their economic attitudes. Therefore, practical programs on economic knowledge should be developed and taught to students systematically at school so that they could have sound consciousness of economic ethics and appropriate knowledge closely related with their real life.
Journal of the Computational Structural Engineering Institute of Korea
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v.31
no.5
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pp.215-226
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2018
In this paper, to estimate the dynamic behavior of a submerged floating tunnel(SFT) by underwater explosion(UE), the SFT is modeled and analyzed by the explicit structural analysis package LS-DYNA. The section of SFT near to explosion point is modeled to shell and solid elements using elasto-plasticity material model for concrete tubular section and steel lining. And the other parts of the SFT are modeled to elastic beam elements. Also, mooring lines are modeled as tension-only cable elements. Total mass of SFT is including an added mass by hydrodynamic effect. The buoyancy on the SFT is considered in its initial condition using a dynamic relaxation method. The accuracy and the feasibility of the analysis model aree verified by the results of series of free field analysis for UE. And buoyancy ratio(B/W) of SFT, the distance between SFT and an explosion point and the arrangement of mooring line aree considered as main parameters of the explosion analysis. As results of the explosion analysis, the dynamic responses such as the dent deformation by the shock pressure are responded less as more distance between SFT and an explosion point. However, the mooring angle of the diagonal mooring system can not affect the responses such as the horizontal displacement of SFT by the shock pressure.
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