• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.11
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• pp.672-681
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• 2018

This study was conducted to test the validity and reliability of the Korean version of the Professional Quality of Life Scale-Short Form (ProQOL-K-SF). Survey data were collected from 191 staff involved in long-term care insurance who worked for National Health Insurance Services. Construct validity using exploratory factor analysis and the internal consistency reliability were determined using SPSS/WIN (21.0). Factor analysis of the ProQOL-K-SF demonstrated that it has a two-factor structure (compassion satisfaction and compassion fatigues) and 13 items that support construct validity. Factor loadings of the compassion satisfaction ranged from 0.70-0.86, factor loading of the compassion fatigues ranged from 0.71-0.82 and the total variance was 60%. The ProQOL-K showed interanal consistency based on Cronbach's ${\alpha}$, with a total scale and two sub scale values of 0.76-0.90. Compassion fatigue and compassion satisfaction of 30 items of the ProQOL-K were positively correlated with those of 13 items of the ProQOL-K-SF. The results support that the ProQOL-K has satisfactory construct validity and is a reliable measure of professional quality of life in Korea.

• Journal of the East Asian Society of Dietary Life
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• v.13 no.6
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• pp.593-600
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• 2003

This study was carried out in order to investigate the possibility of frozen rice batter for the manufacturing of Jeung-pyun. Despite of its unique taste and texture, Jeung-pyun is not consumed much because it needs long time to make. The physicochemical, sensory, rheological and surface characteristics of Jeung-pyun were analyzed to develop the easy manufacture method. The storage condition of rice batter was used at -2$0^{\circ}C$ up to 4 weeks. Statistical data analysis was completed using a SAS program. The results are summarized as follow: The pH brix% and sugar content of all samples which added low-temperature tolerance raw yeast or regular raw yeast decreased during the fermentation. Kind of yeast did not influence on the moisture content of the Jeung-pyun batter. Specific volume and carbon dioxide evolution of Jeung-pyun batter were highest when the rice batter was frozen for 1 week regardless of the kind of yeast. Overall quality of frozen batter of Jeung-pyim at -2$0^{\circ}C$ for 4 weeks had the highest score among different samples. As the test results of mechanical characteristics, cohesiveness, gumminess, brittleness, hardness and springiness did not show any significant differences statistically. The result clearly suggests that freezing the rice batter is a possibile way to manufacture Jeung-pyun.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.6
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• pp.677-683
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• 2006

Glutinous rice cake(Chalduk) was made by varying the hours of soaking time of glutinous rice in the water(0, 4, 8, 12, 24 hours). After storage for various periods, the sensory and physical characteristics and the degree of gelatinization were examined in order to determine the effect of glutinous rice soaking period on the quality of Chalduk. The results of the study are summarized as follows. In the sensory test, 8-hour water soaking produced the significantly highest score for salty taste, while 0-hour water soaking had the lowest score. Four-hour water soaking had the significantly highest score for the degree of chewiness. Eight-hour water soaking had the significantly highest score for overall desirability. For the moisture content of Chalduk covered with bean flour, 8-hour water soaking produced the highest moisture content but the difference was not significant. For the degree of gelatinization, 8-hour water soaking had the highest maltose content, which confirmed the suitability of 8-hour water soaking glutinous rice. Eight-hour water soaking had the lowest hardness. With increasing storage period, the hardness sharply increased. Elasticity was higher for the long-period immersed samples than for the non-immersed samples. In conclusion, an 8-hour soaking time for glutinous rice in water was proposed to maximize the Chalduk quality.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.18 no.4
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• pp.59-66
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• 2010

Aerospace structures need high stability and long life because many personal injuries can result from an accident and securing structural integrity for various external environments is more important than any other thing. So first of all we must prove the destruction properties for operating environment, have prediction technology about damage evolution and life, and develop an economical non-destructive technology capable of detecting structure damage. Acoustic emission (AE) have no need of artificial environment like ultrasonic inspection or radio fluoroscopy to emit a certain energy, is a testing technique using seismic signal resulting from interior changes of solids, and enables to observe if any fault is appeared and it grows seriously or not while running. In this study we suggest the method of structural integrity evaluation for aerospace structures through the acoustic emission technique, for which a model plane was manufactured and an actual operation test was conducted.

• Korean Journal of Health Education and Promotion
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• v.24 no.3
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• pp.87-98
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• 2007

Objectives: This study was aimed to observe health behaviors of middle school and high school students in an Island. Methods: A self-administered questionnaire survey was carried out for total 414 people(middle school 285-men 160 and women 125, high school 129-men 71 and women 58) who resident in Ulleung-do Gyeoungsang-Bukdo from 1th to 30th November, 2005. results: Test main characters of smokers were men(p<0.01), high school student(p<0.01), low school-score(p<0.01), unsatisfacted school lift(p<0.05), smoking of parents(p<0.01), long attending duration of school in Ulleung-do(p<0.01) and existence of mental effect by an island life(p<0.05), the answered. The more drinkers lived together parents(p<0.05), that their habits were effected by island life rather than non-drinkers.(p<0.05). Conclusion: Among the participants, health-related problems varied in the region. To account for these problems, educational programs or counselling services may be employed.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.30-34
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• 2007

Structural integrity of railway vehicles should last for a long period against various and continuous fatigue loadings, and the carbody structures of railway vehicle are manufactured by applying multiform welding types for each material. Since the most of cracks are occurred and proceeded at the vicinity of welding area during the lifetime of carbody structure, the fatigue strength evaluation for welding area of carbody structure should have been carried out. Rotem Company has evaluated lifetime and fatigue strength of carbody structure according to the fatigue analysis based on the international standard and/or inner-official regulation. This study introduces the fatigue analysis method that we have evaluated and calculated the damages for the welding areas of carbody structure under various fatigue loading conditions using cumulative fatigue damage rule(Miner's rule) to verify whether the cumulative damage does exceed unity. This study contains the fatigue test of specimens to derive stress-life relations(S-N curve), sub-modeling analysis and the calculation of cumulative damages under fatigue loading. The fatigue analysis verifies the welding area shall be capable of withstanding under fatigue loading, identifies how critical area shall be selected and presents the principles to be used for design verification.

• Journal of Korean Academy of Nursing
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• v.34 no.5
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• pp.729-738
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• 2004

Purpose: 'Yangsaeng' is a traditional health care regimen for the promotion of health and prevention of illnesses ty means of specific principles and methods for the purpose of living a long and healthy life. The purpose of this paper was to develop a tool in measuring Yangsaeng and to verify its reliability and validity. Method: Content validity was conducted three times by 8 experts. Factor analysis was conducted to test its construct validity. Result: Thirty-one items were selected in 8 factors; Morality Yangsaeng, Mind Yangsaeng, Diet Yangsaeng, Activity & rest Yangsaeng, Exercise Yangsaeng, Seasonal Yangsaeng, Sleep Yangsaeng and Sex life Yangsaeng. The explanatory variance is 61.76%. Cronbach's alpha of the final tool is .89 and that of each factor is .68～.82. The analysis of the items shows that the item-total correlation is .40 or higher. Criterion-related validity was verified with the CMCHS V1.0 and the KoHSME V1.0. Conclusion: Since the tool developed in this study was verified in terms of its reliability and validity, it could be utilized as a tool for evaluating the extent of Yangsaeng.

• Transactions of the Korean Society of Mechanical Engineers
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• v.18 no.2
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• pp.519-528
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• 1994

Degradation problem due to long term service in machine or structure is now one of important problems in whole industrial field. In this study, pressure vessel steel, Cr-Mo steel, which was used more than 60,000 hours, was surface-modified by laser beam radiation for the improvement of fatigue strength. To find out optimum radiation condition, hardness, residual stress measurement and fatigue tests were carried out with the specimen of different radiation conditions. Experimental results show that micro-hardness values on the surface of the radiated specimens were approximately 2.2 times higher than those of un-radiated ones. In the depth direction of the specimen, hardness on the surface showed maximum value and was decreased at the inside the specimen. Different hardness values are due to the energy density Q which was absorbed by the specimen. Fatigue tests show that fatigue life was improved by the compressive residual stress after laser beam radiation. However, some specimens with differednt conditions show the shorter fatigue life. It means that laser beam radiation with optimum parameter can improve thae fatigue strength.

• The Korean Journal of Health Service Management
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• v.12 no.1
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• pp.95-107
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• 2018

Objectives : This study was performed to investigate the health status and social support among elderly living alone with restricted daily functions using the data of the "2014 the Korean Elderly Survey". Methods : Data on 2,407 elderly living alone were drawn and statistically examined using a t-test, an ANOVA, and a multiple regression analysis. Results : The study found that first, the elderly living alone with restricted daily functions comprised 22.1% of the total elderly living alone, and those who were older elderly, illiterate, with low-income, having poor nutrition management, and with a poor health status. Second, among the elderly living alone with restricted daily functions, there was a group with very little support from the family and only 14.0% were covered by long-term care insurance. Third, the life satisfaction of the elderly with restricted functions was lower than that of the non-restricted elderly, and was affected by income, health conditions, depression, access to senior welfare centers, and communication with others. Conclusions : The elderly living alone with restricted daily functions have serious health risks and social support, and hence they should be provided with more proactive support for life, health care and social care to live independently within their communities.

• Proceedings of the KIEE Conference
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• 1998.07e
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• pp.1764-1766
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• 1998

One of the most important problems in the development of AC PDP is to make long life and more stable panels. It is well known that the life time of a panel strongly depends on the sputtering-resistant property of the protecting layer such as MgO. However, the sputtering rate is so low that it is very difficult to measure the sputtering-resistant property of MgO. This paper describes a high speed measurement technique to test the sputtering-resistant property of MgO thin film by the R.F. magnetron sputtering. In this case the MgO sample has been used as a target of sputtering process. Moreover, the MgO surface changed by ion-bombarding sputtering are also discussed with SEM photoes.