• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.348-360
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• 2018

Purpose : The purpose of this study was to explore the meaning and essence of experience of family members as care givers of patient with head and neck cancer. Methods : This study was based on the colaizzi's phenomenological method, which describes the experiences about the family care givers. We had in-depth interview with family of five head and neck cancer patients. Results : Data was classified by 24 themes, 9 theme clusters and 4 categories. The categories are as follows: 'Shocking and actuality like a deadly maze', 'Cut off from the world by changes in family's physical image', 'Exhaustion of family', 'Take-off for mature care'. Conclusion : The results of the study provide useful information in understanding care givers' experience of patient with head and neck cancer and establishing effective strategies to support these care givers.

• Food Science and Preservation
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• v.10 no.1
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• pp.6-10
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• 2003

The objective of this study was to investigate the effect of browning inhibitor and vacuum packaging on minimally processed sweet pumpkin. The browning inhibitor were lo/e of ascorbic acid, citric acid, NaCl, MgCl$_2$and their combination. For the minimal processing, sweet pumpkin was sliced and strip-cut followed by dipping in the solution of browning inhibitor. Effective browning inhibitors fer slice sweet pumpkin were ascorbic acid, NaCl and MgC1$_2$, and those fer thin strip were combination and ascorbic acid. The hardness of minimally processed sweet-pumpkin repeated increasing and decreasing and decreased in the final of storage. However the change pattern of hardness was different according to cutting method. Magnesium chloride treatment was generally high grade on sensory characteristics. Sweet pumpkin treated with citric acid was distinguished on carbon dioxide generation and oxygen exhaustion.

• Journal of the Korea Concrete Institute
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• v.28 no.3
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• pp.357-363
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• 2016

To solve the exhaustion problem of natural aggregate which were create the high value in construction and environmental industry, recycled aggregates have considerable benefits than other materials. However, even though many researches have been conducted with recycled aggregates, building structures with recycled aggregated are rarely constructed because it has lower quality than natural aggregates have. In this study, mechanical and strain properties of recycled aggregates concrete containing steel fibers have been reviewed in order to complement performance of recycled aggregates concrete. As results, recycled aggregates concrete showed lower compressive strength and elastic modulus than plain concrete. But, recycled aggregates concrete containing steel fibers showed equivalent performance with plain concrete. In review of drying shrinkage and creep coefficient, recycled aggregates concrete containing steel fibers showed similar behavior with plain concrete in the range of 0.5 Vol.% fiber content rate by internal restraint effect, moisture transport restraint effect and strength enhancement effect of steel fiber. Therefore, it is considered that mixing steel fibers with concrete is the effective method as a active application plan for recycled aggregates.

• Korean Journal of Social Welfare
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• v.67 no.3
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• pp.227-252
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• 2015

This study conducted in-depth interviews of seven parents with autistic adults and analyzed them using qualitative case study methods in order to understand overall meaning of care experiences of parents with autistic adult children. Thus, four key topics which are 'experience of embracement', 'experience of anticipation', 'experience of despair', 'experience of resistance' were constructed. Under these key topics, 12 subcategories which are 'accepting reality', 'positive experience', 'gradual improvement', 'desire to provide better quality of life', 'expectation towards the society', 'strenuous lives', 'psychological exhaustion', 'predicted anxiety', 'defensive attitude', 'distrust of social welfare', 'confronting injustice', 'active behaviors' were constructed. According to the analysis, care experiences of parents with autistic adults are not segmentary, but they are intertwined which make them more dynamic. Thus, easing their despair, empowering positiveness to them, and assisting them to have healthy resistant voice are needed to support the parents with autistic adults. Based on the analysis, we suggest an intervention plan to support autistic adults and their parents.

• Journal of the Korean Society of Propulsion Engineers
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• v.1 no.2
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• pp.12-21
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• 1997

Nowadays, non-pollution energy sources have been strongly needed because of the exhaustion of fossil fuels and serious environmental problems. Because wind energy can be enormously obtained from natural atmosphere, this type of energy has lots of advantages in a economic and pollution point of view. This study has established the aerodynamic and structural design procedure of the rotor blade with an appropriate aerodynamic performance and structural strength for the 500㎾ medium class wind turbine system. The aerodynamic configuration of the rotor blade was determined by considering the wind condition in the typical local operation region, and based on this configuration aerodynamic performance analysis was performed. The rotor blade has the shell-spar structure based on glass/epoxy composite material and is composed of shank including metal joint parts and blade. Structural design was done by the developed design program in this study and structural analysis, for instance stress analysis, mode analysis and fatigue life estimation, was performed by the finite element method. As a result, a medium scale wind turbine rotor blade with starting characteristics of 4m/s wind speed, rated power of 500㎾ at 12m/s wind speed and over 20 years fatigue life has been designed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.359-371
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• 2017

This study qualitatively examined the lives of non-tenured, secondary school teachers who are preparing for the teachers' exam. Semi-structured, face-to-face interviews were conducted with ten teachers and the data were analyzed using the consensual qualitative research method. Most of the participants had chosen a contract-based teaching position, believing that it would meet their financial needs, provide them with the satisfaction of being a teacher and, more importantly, afford practical help with their exam preparation. In practice, however, they suffered from low self-esteem and identity confusion due to discrimination by the school administrators. Ironically, this unfair treatment strengthened the participants' commitment to studying for the exam, in order to acquire a stable and secure position in school. However, they experienced a lot of study-related stress, including a lack of study hours, heavy study load, multiple life roles, physical exhaustion, the difficulties caused by the vague exam guide, and anxiety due to previous failure in the exam. Based on the findings of this study, directions for future research are suggested.

• Archives of Plastic Surgery
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• v.36 no.4
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• pp.462-468
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• 2009

Purpose: The liposuction has been generalized & undergone in the field of plastic surgery and it has had a great influence on fat graft. But despite of liposuction and fat injection being performed widely, we did not focus on complication associated with donor site. So we reported satisfactory result with the intraoperative sustained limited expansion & direct closure to donor site tissue necrosis after liposuction and analyzed the cause & measures of donor site necrosis with the literature investigation Methods: From November 2007 to June 2008, we treated four cases of tissue necrosis and infection surrounding the thigh and forearm. Necrosis after liposuction was 1 case, donor site necrosis after fat injection were 3 cases and MRSA was detected in 2 cases. first, we debrided the necrotic tissue and treated with potadine gauze soaking dressing & susceptible antibiotics. After confirmation of healthy granulation tissue, we used intraoperative sustained limited expansion and closed directly of defect & observed the results. Results: The patient was displeased and worried with the unexpected damage concerning the donor site and the procedure concerning time and financial exhaustion, but after confirming no contracture of the scar tissues and only a thin or slightly widened line of scar, showed satisfaction. Conclusion: Because it is fastidious to avoid donor site complication after liposuction & fat injection, enough explanation and understanding on possible complication to donor site are necessary and careful surgery procedure & materials are required. But if donor site necrosis were occurred although close consideration of possible causes of necrosis, we should think about not only wound healing process but also the sequela like scar contracture & cosmetic effect and treat the most adequate method to satisfying both concerns.

• Journal of Fisheries and Marine Sciences Education
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• v.25 no.1
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• pp.152-166
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• 2013

The main purpose of this study is to see the differences of the achievement goal orientation, academic burnout, and school happiness between gifted and general students, and also to explore the effects on school happiness of their achievement goal orientation and academic burnout. To resolve the above research questions, this study used questionnaire method to 256 1st grade middle school students and 84 gifted students enrolled in Daegu metropolitan city. All data were analyzed by SPSS WIN 19.0 program. The results of this study are as follows. First, mastery goal, performance-approach goal and performance-avoidance goal of the gifted students were higher than the general students'. Second, all sub-variables of academic burnout except hostility and total score of academic burnout of the gifted students were lower than the general students. On the other hand, all sub-variables of school happiness except relationship with friends and emotional stability and total score school happiness of the gifted students were higher than the general students. Third, this study revealed that the achievement goal and academic burnout explain considerable amount of students' school happiness. In other words, the disfavor and skeptical attitude of general students for the study hinder school happiness. Lastly, this study suggest that some program or consulting need to be administerd to change the affective attitude of students into positively. And also variety of counselling program or some instructions dealing with stress for gifted students since the exhaustion of gifted students affects considerably their school happiness.

• Journal of Welding and Joining
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• v.34 no.2
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• pp.22-29
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• 2016

Recently, Application of composite materials are increased in transport area for weight reduction. Also, Related technical developments have been implemented actively at domestic and abroad. In particular, The carbon fiber has high strength and ultra light property higher than stainless steel, aluminum, GFRP as Eco-friendly material. Carbon fiber contribute to improving the environmental effect such as fuel saving, expansion of loadage, reducing the exhaustion of carbon dioxide through the weight reduction of transport area. In addition, The carbon fiber is applied to the ship in the area of race yacht, luxury cruise boat as weight reduction and high added-value materials, but there is limited application for general boat because price of carbon fiber is very expensive. For the weight reduction of general boat hull, being used as structure materials, glass fiber and carbon fiber are applied to hull with form of hybrid composite materials, but application of domestic and research for development are incomlete. In this study, An evaluations of mechanical strength property and fatigue strength are performed on composite materials by hybrid weaving of glass fiber and carbon fiber and composite materials forming method by hybrid forming.

• Resources Recycling
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• v.18 no.3
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• pp.27-35
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• 2009

To solve resource exhaustion and waste management problems caused by mass consumption, there are many efforts to change from resource consumption system to recycling system. Specially, interests about management of construction waste have increased, but efficient recycling system of waste concrete is not established yet. In this study, high quality recycled aggregate processing circuit was developed to recycle waste concrete. From the waste concrete which is a hydrated compound with coarse aggregate, fine aggregate, and cement material, high quality recycled coarse aggregate for concrete making was produced by autogenous milling and heat pretreatment method. After then, refinement process was performed to separate fine aggregate and cement material from waste concrete fines by sink float separation and hindered-settling separation. As a result, high quality recycled aggregate was produced from waste concrete by developed processing circuit.