• Archives of Reconstructive Microsurgery
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• v.3 no.1
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• pp.64-71
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• 1994

The successful treatment of the extensively traumatized foot warrants reconstruction utilizing tissue that will provide adequate coverage, is resistant to infection, thin enough to conform to the contours of the foot as well as durable to constant frictional movement and weight bearing. Currently, free flaps offer the best means in achieving these difficult and sometimes contradictory goals. We treated twenty-one patients suffering from extensive soft tissue loss of the foot due to trauma, electric burn or postburn sequelae with free flaps. A fasciocutaneous, musculocutaneous or muscle flap with skin grafting was used based on the location, volume of tissue required, and the functional anatomical requirement of the injured region. The follow-up duration averaged twenty-nine months. From our group of patients, we believe that the muscle free flap with skin grafting offers the most favorable outcome.

• Journal of Biosystems Engineering
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• v.31 no.3 s.116
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• pp.153-160
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• 2006

This study was performed to evaluate some geometrical characteristics of disc type swirl nozzles and to develop nozzles having improved spraying performance for knapsack sprayers. Considered geometrical characteristics of the nozzles were disc thickness, orifice diameter, swirl chamber diameter and shape of the swirl chamber (nozzle chamber). 3 types of nozzle cores were compared. Main results of this study were as follows. 1. Spraying angle (A) was increased with decreasing disc thickness (x), and with increasing orifice diameter (y) or spraying pressure (z). The equation was as a follow. $$A=3.95\frac{1}{x}+73.50\sqrt{y}+18.97\sqrt{z}-60.16$$ 2. Spraying flow rate (F) was increased with decreasing disc thickness (x), and with increasing orifice diameter (y) or spraying pressure (z). The equation was as a follow. $$F=-89.95x+611.09y+620.49\sqrt{z}-868.20$$ 3. Mean spraying droplet size (V) was decreased with decreasing disc thickness (x), with increasing orifice diameter (y) in low spraying pressure, with decreasing orifice diameter (y) in high spraying pressure, and with increasing spraying pressure (z). $$V=148.77x^4-746.85x^3+1311.76x^2-917.31x$$ 4. The spray pattern was compared using CV values. The CV value of the nozzle core type 1 was 26.7% in spraying pressure $3\;kgf/cm^2$, the CV value of the core type 2 was 23.6% in spraying pressure $2\;kgf/cm^2$, the CV value of the core type 3 was 20.6% in spraying pressure $1\;kgf/cm^2$. 5. Minimum spraying pressure was improved from $1.5\;kgf/cm^2\;to\;1.0\;kgf/cm^2$ by changes of nozzle core shape.

• Journal of the Korean Society of Radiology
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• v.6 no.6
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• pp.435-440
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• 2012

The purpose of this study was to examine the impact of the Fukushima nuclear power plant accident of Japan in 2011 on kindergarten parents' perception about irradiated foods and radioactive-contaminated foods. This study analysed the 178 questionnaire forms out of 205 parents of 'K' and 'M' kindergarten in the region of 'J' city. The findings of the study indicated that the Japanese nuclear power plant accident exerted an influence on anxious of kindergarten parents about irradiated foods and radioactive-contaminated foods. In conclusion, The full-fledged publicity and parent education are required to improve the perception and understanding of kindergarten parents about irradiated foods and the differences between it and radioactive-contaminated foods.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.32 no.4
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• pp.455-461
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• 1987

The ovaries or the ovules of grasses were pollinated and cultured in vitro to raise the interspecific or the intergeneric hybrids between tall fescue, meadow fescue, and Italian ryegrass. The isolated and suface-sterili-zed pistils were dusted with compatible pollens on stigma, on stump after removing stigma, or on excised ovule. Furthermore, the fertilized ovaries and ovules were cultured on MS, M6, or White's media and treated with plant growth regulators: IAA, kinetin, BA to promote embryo development and seed maturity. The in vitro fertilization in grass species ranged from 44 to 92% depending on ovary and pollen parents. The stigmatic pollination was resulted in 67.8% fertilization, the stump pollination 89.0%, and the excised ovule pollination 61.0%, repectively. White's medium was the most effective to provide embryo development and seed maturity in grass species. And the combined treatment of IAA 10mg/$\ell$, kinetin 0.2mg/$\ell$, was better than the non-treatment. Only two seedlings, one complete and one abnormal with root formation were obtained from 127 ovaryies cultured. The anatomy of ovules in vitro cultured was revealed the differentiation of vascular system and meristematic tissue, and the formation of sclerenchyma cells inside ovule.

• The Korean Journal of Health Service Management
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• v.5 no.3
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• pp.25-39
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• 2011

본 연구는 병원 근로자들의 직무스트레스와 소진의 관계에 미치는 펀 리더십과 근로자 놀이성의 조절효과를 규명함으로써 향후 병원조직의 효과적인 인적자원관리에 필요한 기초자료를 제공하고자 하였다. 연구자료는 부산지역 2개 병원에 근무하는 근로자(의사 제외)를 대상으로 구조화된 자기기입식 설문지를 통하여 수집하였으며 총 230부의 설문지를 배부하여 이 중 207부의 설문을 회수하였다. 설문 문항에는 응답자의 일반적 특성, 직무스트레스 특성, 펀 리더십, 근로자 놀이성, 소진 등을 측정하는 항목들이 포함되었다. 자료 분석을 위해 SPSS WIN 18.0을 이용하여 빈도분석, 신뢰도분석, 상관관계분석과 조절회귀분석 등을 수행하였다. 주요 결과를 요약하면 다음과 같다. 첫째, 직무스트레스와 소진의 관계에서 펀 리더십은 직접 효과는 물론 조절효과도 유의하게 나타나지 않았다. 둘째, 직무스트레스와 소진의 관계에서 근로자 놀이성은 소진에 직접적인 효과를 주는 변수임과 동시에, 낮은 유의수준(p=0.053)에서지만 직무스트레스와의 상호작용을 통해 소진을 감소시키는 조절효과가 있는 것으로 나타났다. 본 연구는 병원 근로자의 업무 수행과 관련해 비교적 관심을 받지 못했던 펀 리더십이나 근로자 놀이성 등과 같은 성격적 특성이 소진을 감소시키는 유효한 조절변수가 될 수 있음을 검증해 보았다는 점에 그 의의가 있으며, 다만 후속 연구를 통해 추가적인 검증이 필요할 것으로 판단된다.

• Journal of Science Education
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• v.37 no.2
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• pp.245-260
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• 2013

The purpose of the research is to examine the teachers' cognition about the math textbook selecting and to provide the implications about the rational process of the textbook selection and criteria based on the research. In terms of the research result about the inner and outer criteria of the actual process of the textbook selecting, they utilized the standard selection criteria distributed by Office of Education, and they considered 'Organization of learning contents' and 'Learning evaluation' as the most important factors. The selection method was that the answer 'After scoring the grade with matching standards, selecting by adding the total score' was the highest. In case of the actual selection, the most considerable inner criteria appeared 'Learning quantity and propriety of the difficulty level'. The outer criteria showed 'Awareness', and the difficulty in the selection process was 'in sufficient time for reviewing'. Based on this research result, we draw the implication that needs to be improved in the process of the textbook selection and the criteria.

• Journal of Korea Port Economic Association
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• v.31 no.3
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• pp.167-186
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• 2015

The purpose of this case study is to verify the usefulness of three costing models and a minimum profit management model that can support the logistics warehouse companies in the Busan Newport Distri-park. This case study investigated traditional costing, activity-based costing (ABC), and time-driven ABC (TDABC); and suggested that an appropriate minimum profit management model is contribution margin analysis. Accordingly, in order to verify the usefulness of models, this case study surveyed the actual cost management conditions of companies, applied the three costing models to the "K" warehouse company in the Busan Newport Distri-park, and undertook a comparative study of the results. This case study produced two main findings. First, TDABC was verified as the most useful and advanced of the three costing models tested. Second, contribution margin analysis was confirmed to be the most suitable model to manage minimum profits for port warehouse companies in the Busan Newport Distri-park.

• The Journal of the Korea Contents Association
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• v.12 no.7
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• pp.406-414
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• 2012

The purpose of this study tries to find some competitive marketing strategies of the hotel wedding service. In order to do that, this study positively analyzes the followings: First, the causality between the qualities of hotel wedding service and customer satisfaction. Second, the word-of-mouth intention on the causality. The study bases on the survey that has been conducted for five-star hotel customers in Seoul. 20 questionnaires were circulated in each for 12 five-star hotels in Seoul. The number of sample used in this study is 315. This study draws two conclusions from the above survey analysis: First, the hotel wedding service influences customer satisfaction. Second, customers' word-of-mouth plays a meaningful controlling role between the qualities of hotel wedding service and customer satisfaction. Regarding the results and limits of this study, more researches are needed into the products of hotel wedding service and the sample segmentation.

• The Journal of the Korea Contents Association
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• v.12 no.7
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• pp.497-509
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• 2012

The purposed of this study was to evaluate the effects of psycho-social maturity personality improvement program for university students. This program based on the book written by Lee et al.(2010) to improve the personality for university student was used. The program consisted of a total of 13 session and every session consisted of a 50 minutes lecture and 100minutes activity program. The researcher carried out the pre-test, post test and follow up test regarding psycho-social maturity and conducted Mann-Whitney U test and the ancova. The results showed who had participated in counseling groups reported significant improvement of psycho-social maturity total scores and sub scores, while the control group did not report any significant improvements. After 10 weeks follow-up point, these changes experienced by the experiment group on the improvement of the psycho-social maturity. Finally the personality program helped improve the psycho-social maturity.

• Culinary science and hospitality research
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• v.22 no.5
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• pp.277-294
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• 2016

This study was to empirically determine the relationship between hotel food & beverage service quality, and customer satisfaction and brand loyalty. A total of 260 survey responses were collected from food & beverage' customers of seven five star hotels in Seoul. The results of hypothesis testing can be summarized as follows. The results showed that facility and reliability factors, and employee service and excellence factors had significant effects on customer satisfaction, and then reliability factors and excellence factor had significant effects on brand loyalty. Customer satisfaction also had a significant effect on brand loyalty. It can be concluded that the service quality components of hotel food & beverages are perceived responsiveness, service capabilities, food and beverages products, and physical environments. A strategy should be developed to create internal communication programs based on the empirical analysis results of this study.