• 산업경영시스템학회지
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• 제32권4호
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• pp.45-52
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• 2009

The objective of this was to improve a transportation cost relation between Central Distribution Centers(CDCs) and Regional Distribution Centers(RDCs), to control inventory cost concerning safety stock for each service level, by reviewing distribution steps connecting CDCs and RDCs under the price discount. It was also to examine and compare operating costs for the following two alternative suggestions for setting the service standard as a counter measure for a stock-out of the distribution network system management. First, provision by dispersing the safety stock to the CDCs and RDCs; and second, exclusive provision of the safety stock only to the RDCs. The cost comparison analysis was made for each category of purchase costs, regular transportation costs, express transportation costs, and inventory holding costs.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.132-139
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• 2008

In an electric railway feeding system, transient over-voltage often appears due to the feeder's direct lightning and induced lightning, while switching over-voltage also frequently occurs during operation of electric feeding in substation facilities. Such over-voltage is several times larger than the regular power, and accordingly leads to the dieletric breakdown of eletric power products such as invasion transformers and circuit breakers. Arresters are installed to protect these machines, while arrester counters are installed to observe the arrester's activation. This thesis aims to explore the status of an arrester counter that is being activated several thousand times, determine whether the arrester has actually been activated in relation to the counter, and investigate the over-heatedness and risks of the arrester.

• Journal of applied mathematics & informatics
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• 제41권3호
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• pp.525-540
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• 2023

In this paper, we introduce the concept of fuzzy nano M open and fuzzy nano M closed mappings in fuzzy nano topological spaces. Also, we study about fuzzy nano M Homeomorphism, almost fuzzy nano M totally mappings, almost fuzzy nano M totally continuous mappings and super fuzzy nano M clopen continuous functions and their properties in fuzzy nano topological spaces. By using these mappings, we can able to extended the relation between normal spaces and regular spaces in fuzzy nano topological spaces.

• 대한간호학회지
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• 제3권3호
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• pp.78-96
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• 1973

This study of 855 clinical nurses was conducted using a questionnaire that include tour different scales; the motives of determining their profession, the attitudes toward their profession, the general items, and desire and expectation to their profession and society. The data were analyzed by Chi-Square Test and Percentage. The results of this study included Hypothesis are as follows; The respondents were 855 (78.6%) among 1088 clinical nurses who were employed by General of Educational hospitals through the city of Seoul, Pusan, Taegu, Daejun, Kwangju, and Wonju. 1) a. In the Age Distribution, the majority of respondents were under the age of 30yrs(88.2%) and the minority were above 31yrs(11.2%), and the preponderance of the majority to minority(9:1) was noted. In compared with area, a group above 31yrs old in Seoul (6.9%) was lower than other area (16.3%). b. The types of Educational background were 16.3% in Voc.Tr. School, 66.5% in Diploma and 17.1% in Degree.146 clinical nurses were from the Degree course, and 142 (97.3%) CN among those of them were occupied around Seoul and 4(2.7%) around other area. c. In the Marital Status,71,5% were the unmarried and 28.5% were the married. And compared with the area was 20.4% in Seoul and 41.4% in other area. d. Most common Length of Clinical Experience after graduation was under tile 2yrs (55.4%), 3yrs(14.2%, and 4yrs (6.2%). In compared with area, Seoul (15.3%) was lower than other area (38.1%) above 5yrs of clinical experience, and the preponderance of tile other area to Seoul as 2.5: I was noted. 2) a. Hypothesis 1 was significant relation between the types of Educational Background of the CN and their motives for selection of Nursing, P-value was below 0.01. b. There was a significance on hypothesis 2 (P＜0.01): that was relation between their motives for selection of clinical nursing field after their graduation and the area which they were employed. c. Hypothesis 4 was accepted as significant relation between the level of satisfaction of their clinical experience after their graduation and the types of educational back ground, P-value was below 0.01. d. There was a significance on hypothesis 5(P＜0.01) that was relation between the CN's response about the orientation program and the area which they were employed. e. Hypothesis 6 was retained as significant relation between the area and inservice educational programme of their employed hospital was practising or not. P-value was 0.01. f. Hypothesis 7 was retained as significant relation between the area and the CN's response about the inservice educational programme of their employed. P-value was below 0.01. g. There was a significance on hypothesis 8 (P<0.0l) that was relation between the CN's experience on attending the professional meeting and the area. h. Hypothesis 10 was accepted as significant relation between the response about the present licence system and their educational background. p-value was below 0.01. i. There was a significance on hypothesis 11 (P fO.01) that was relation between the carrying out the regular and delivery vacation and the area. J. Hypothesis 12 was accepted as significant relation between the CN's consideration of the lack of leisure and their marital status. p-value was below 0.01' k. There was a significance on hypothesis 13 (P <0.01) that was relation between the CN's response about their salary and their marital status. l. Hypothesis 14 was significant relation between the most difficulties of CN during their working and the hospital which they were employed. p-value was below 0.01.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제24권2호
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• pp.415-444
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• 2010

본 연구의 목적은 초등학교 수학영재와 일반학생의 귀인성향과 수학에 대한 태도의 차이를 살펴보고 상호 어떠한 관계가 있는지를 밝힘으로써, 수학영재들의 고유한 특성을 이해하는데 도움을 주고 수학영재 판별과 영재교육 프로그램에 활용할 수 있는 유용한 정보를 제공하는데 있다. 본 연구는 초등학교 5, 6학년 수학영재 202명과 일반학생 213명으로 총 415명을 대상으로 하여, 귀인성향 검사와 수학에 대한 태도 검사를 실시하였다. 본 연구의 결과는 다음과 같다. 첫째, 수학영재와 일반학생의 귀인성향은 성별과 학년에 따라 거의 차이를 보이지 않았지만 영재성에 의해 귀인성향의 모든 하위요인들에서 유의한 차이가 있었다. 둘째, 두 집단 모두 학년에 따라 거의 차이를 보이지 않았지만 성차에 의해 몇 가지 하위요인들에서 유의한 차이가 있었다. 영재성에 따라서는 수학영재가 일반학생보다 성역할 적합성을 제외한 모든 하위요인들에서 더 긍정적이었으며, 특히 자신감과 동기성이 매우 높게 나타났다. 셋째, 상관분석 결과에서는 두 집단 모두 귀인성향 중 내적성향과 수학에 대한 태도 간에 유의한 정적 상관이 있었다. 특히 수학영재는 일반학생보다 노력 귀인과 수학에 대한 태도, 내적성향과 자신감과의 상관성이 높게 나타났다. 하위요인들 간에는 수학영재가 거의 모든 하위요인들에서 더 높은 상관성을 보였는데, 특히 능력 귀인과 자신감, 노력 귀인과 동기성에서 높은 정적 상관이 있었다. 넷째, 중다회귀분석 결과에서는 수학영재와 일반학생 모두 수학에 대한 태도에 대하여 내적성향의 영향력이 유의하였는데, 특히 노력 귀인의 영향력이 높게 나타났다. 수학영재는 일반학생보다 노력 귀인뿐만 아니라 능력 귀인의 영향력도 더 높게 나타났으며, 노력 귀인은 유용성에, 능력 귀인은 자신감에 주요한 영향력이 있었다.

• 대한조선학회논문집
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• 제49권1호
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• pp.79-86
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• 2012

It is very important to investigate and understand the motion of a FPSO on waves because green water phenomenon occurs owing to the relative motions between incident waves and a ship on them. In this research, both experimental and some numerical approaches have been performed in head sea conditions with regular waves. As an object model of this research, a FPSO model is set free to heave and pitch during the experiments. Also, the motions of the FPSO model which are the results of the experiments are used for the corresponding numerical computations. The purpose of this study is to clarify the effect of bow flare on green water load. In this research, it is found that the amount of green water entered from the side of bow is decreased by the increase of bow flare angle. Moreover, the relation between the green water on the bow upper deck and the impact load on the vertical wall located at turrethead is investigated. The results of this research could be used as one of the fundamental data to design bow flares. Also, an optimized bow flare angle is proposed in this study.

• 대한지역사회영양학회지
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• 제12권2호
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• pp.150-159
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• 2007

Since the 1980's, despite the conclusion of a number of studies in Western countries focusing upon weight maintenance there has been no similar research in Korea which takes into account the contrasts of culture and eating habits between east and west. In order to identify eating, snacking and exercise behaviors, 24 female university students who have maintained weight for at least a year were enrolled fur an 11 day study. Participants were required to sign into the program and complete the questionnaire, answering questions by concerning what they ate and did everyday. After excluding unanswered questions, data over 11 days were exported into the Microsoft Excel spreadsheet, then both ANOVA and Kendall's tau correlation were applied with SPSS. 75% of weight maintainers had normal BMI (18-23.5) in relation to Korean standard, and appeared to eat a main meal smaller than moderate in portion size. Only two days showed that amount of breakfast eaten negatively correlated with lunch (p < 0.05), while no correlations between amounts of lunch and dinner eaten over all study period. Compared with breakfast or lunch, dinner was usually larger in portion size, but some variables such as TV viewing, restaurant meals, number of people at dinner table seemed not correlated with amount of dinner eaten. In addition, the weight-maintainers reported they rarely consumed snacks or sweetened beverages. Unlike their western counterparts, ffw participants reported that they took part in regular exercise during the day, which may lead us to the conclusion that these young female weight maintainers seem to maintain their weight with eating behaviours such as 'eat small portion', 'avoid snacking' and 'avoid soft drinks' rather than doing regular exercise. The study did not include a control group, and was foreshortened due to technical difficulties so it may be necessary to repeat the study while considering these two points.

• 한국콘텐츠학회논문지
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• 제13권12호
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• pp.136-148
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• 2013

본 연구는 우리나라의 무용단 중 한국무용을 대표할 수 있는 국립무용단, 서울시무용단, 경기도립무용단의 정기공연작품의 주제경향 분석을 통해 무용이 사회와 어떠한 관계를 지녔는지 작품의 주제경향으로 시대별 사회의 흐름을 유추하여 무용과 사회의 구조관계를 조사하고, 무용작품의 주제에 대한 의미를 각인시켜 후속연구에 기반을 제공함에 연구의 목적이 있다. 이 연구의 목적을 수행하기 위하여 선행연구 및 관련서적을 참고한 문헌조사를 중심으로 국립무용단, 서울시무용단, 경기도립무용단 세 무용단으로 선정하여 각 무용단의 창단부터 현재까지의 정기공연을 팜플렛, 신문기사, 무용단의 공연자료 및 관련된 선행논문을 통해 정기공연의 주제를 조사하였다. 자료분석은 주제경향 선행논문에서 공통적으로 사용된 김병석의 분류방법에 따라 무용단의 창단부터 현재까지 공연된 정기공연 내용과 주제를 중심으로 1) 전통의식적 주제, 2) 문학적인 주제, 3) 역사적인 주제, 4) 추상적인 주제, 5) 현실적인 주제, 6) 사회적인 주제로 분류하였다.

• Journal of Nutrition and Health
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• 제26권2호
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• pp.164-173
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• 1993

This study was aimed to investigate whether abdominal obesity is associated with non-insulin dependednt diabetes. The distribution of body fat patterns was observed in 181 female patients with diabetes, aged 33 to 83 years, living in the Taegu area, Korea. The following anthropometric measuremetns were made on all participants from October 1 to November 25, 1991 : weight, height ; waist and hip circumferences in standing position. The waist hip circumference ratio was used as an index of abdominal obesity. The results were as follows; 1) The mean fasting blood glucose of diabetic subjects was 145$\pm$50.3mg/dl and the mean duration of diabetes was 4.7$\pm$7.5 years. 2) Obese subjects above the ideal body weight body weight of 120% in the investigation are presently 52%, but 63% of subjects were reported to be obese in the past. The mean BMI of the subjects is 24.57$\pm$3.15 and the past mean BMI was 27.13$\pm$3.26. One year after reaching their highest body weight, 47% of the subjects developed diabetes. Two years after reaching their peak body weight, 74% of diabetic subjects developed diabetes. 3) Using the waist-hip circumference ratio, subjects beloing to the upper body obesity(WHR>0.84) were 65.5%. 4) The average daily energy intake did not differ between the obese and non-obese diabetic subjects, whether they were assessed with BMI or with RBW. 5) The average daily energy intake was higher in the upper body obesity subjects than in the lower body obesity subjects. 6) Diabetics withing the regular exercise group had lower fasting blood glucose levels than the non-regular exercise group. Exercise did not effect the RBW, BMI, and WHR. 7) The waist-to-hip circumference ratio correlated significantly in positive with waist-circumference, but did not correlated with hip-circumference. Therefore, WHR may depended on the increased accumulation of abdominal fat in female diabetics. In conclusion, these findings suggest that caloric intake is more associated with abdominal fat accumulation in diabetic women. Blood glucose concentration is independently effected by exercise, and exercise does not affect the WHR. Therefore, control of caloric intake and development of specific exercises to change the WHR seems important for controling diabetes in female subjects.

• 한국간호교육학회지
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• 제26권2호
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• pp.123-131
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• 2020

Purpose: The purpose of this study was to describe characteristics of colleges implementing the accelerated second-degree bachelor of science in nursing program in South Korea and provide insight into strategies to improve the program outcomes. Methods: An on-line questionnaire developed for this study was emailed to deans of nursing colleges who were members of the Korean Association of College of Nursing. Questions included items related to nursing college, students, curriculum, and anticipated difficulty in relation to an increase of the number of second-degree students. Results: Out of 117 nursing schools, 33 schools (28.2%) participated in the on-line survey. The actual number of second-degree students and their ratio (about 10%) to regular students significantly increased in 2019. Male students were enrolled nearly twice as many times as regular students. Among the anticipated difficulties, clinical practice institutions (3.94) and clinical practice instructors (3.73) showed relatively higher scores than other difficulties such as teaching (3.58) and education facilities (3.30). Conclusion: In order to improve the quality of nursing education for second-degree students, more nursing faculties and innovative clinical practice support systems are needed. Future study is warranted to investigate the educational experience of second-degree students and graduates.