• 한국항해학회지
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• 제14권4호
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• pp.53-70
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• 1990

Much efforts have been made to improve the training education system for last decades. however, it still leaves much room form improving the system. The reason for this is that the have been many changes in given educational conditions, national and international, and that there existed the lack of training facilities on shore and the limits of capacity on the training ship. The existing program adopts a straight-through system of which the course has to be completed at same time, and also forces students to study the course, disregarding their aptitude for sea life. Consequently, the program resulted in frustrating the learning desire of some students and, as a consequence, in deteriorating the quality of the entire training education. This paper aims to develop an efficient training program including curriculla by the literature survey and the teaching and sea experiences on the training ship "HANBADA" and merchant ships, where the authors have been for many years. Compared with the existing one, the new training model suggested in this paper has some advantages as follows : First, the new model adopts multi-state system which consists of various short-term training courses according to each purpose. This system will be helpful for student to find their aptitude for sea life earlier and to understand classes of major subjection shore. Second, the model includes new curriculla which consist of core subjects (for example, navigation, marine operation, marine transportation, watch keeping and nautical English for deck cadets and internal and external combustion engine, auxiliary machinery, electric and electronics and engine maintenance for engine cadets), by incorporating existing 20 subjects in 5 subjects. These curriculla may contribute to embodying the characteristics of training education where the above mentioned subjects must be linked with each other. In order to implement this new training model efficiently and effectively, the following prerequisties must be prepared : $\circled1$ The contents of each subject included in the new model should be systematically developed. $\circled2$ The educational schedule should be adjusted according to the new model.new model.

• 한국치위생학회지
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• 제15권1호
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• pp.81-89
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• 2015

Objectives: The purpose of the study is to investigate the effect of values on major satisfaction in dental hygiene students. Methods: The subjects were 214 dental hygiene students in Seoul and Gyeonggi-do who filled out the self-reported questionnaire after receiving informed consents from January 20 to February 15, 2014. Except incomplete answers, 187 data were analyzed using PASW Statistics 18.0 for Scheffe post hoc test, Pearson correlation coefficient, hierarchical regression analysis, independent sample t-test, and one-way ANOVA. The questionnaire consisted of general characteristics of the subjects and values. General characteristics consisted of gender, age, grade, school record, major choice motivation, and the influencing person to choose the major. The instrument for values was modified from Shin based on MILOV(Multi-Item Measures Of Values) and two professors of dental hygiene verified the validity of the instrument. Instrument for values consisted of 7 questions of values for self-respect, 6 questions of relation oriented values, 5 questions of emotion oriented values, and 5 questions of values for others measured by Likert 5 scale. Cronbach's alpha was 0.769 in the study. The instrument for major satisfaction was modified from Na based on Program Evaluation Survey of Illinois University and two professors of dental hygiene verified the validity of the instrument. Major satisfaction consisted of 7 questions of general satisfaction, 5 questions of consciousness satisfaction, 5 questions of curriculum satisfaction and 3 questions of relation satisfaction measured by Likert 5 scale and Cronbach's alpha was 0.887 in the study. Results: Values of self-respect, relationship orientation and grade had significant influence on general satisfaction, while values of self-respect, relationship orientation and gender had significant influence on consciousness satisfaction. Values of relationship orientation, grade and school record had significant influence on curriculum satisfaction. Grade showed significant influence on relationship satisfaction. Conclusions: Values of self-respect and relationship orientation are the most important factors in dental hygiene students. The guidance for professional career and major satisfaction can be accomplished through the values of self-respect and relationship orientation.

• 한국콘텐츠학회논문지
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• 제17권6호
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• pp.540-550
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• 2017

본 연구는 치매환자의 행동심리증상에 미치는 다양한 비약물적 중재의 효과를 확인하고, 중재 별로 주요하게 작용된 증상이 무엇인지를 알아보고자 메타분석을 실시하였다. 자료 수집은 국 내외 검색엔진을 이용하였으며, 2000년 1월부터 2016년 6월까지 출판된 연구를 대상으로 하였다. 치매환자에게 적용한 비약물적 중재의 효과를 제시한 사전-사후실험연구 가운데 실험군과 대조군이 있는 무작위통제실험연구(Randomized Controlled Trial; RCT)를 대상으로 하였다. 최종 선정된 23편의 연구를 분석한 결과, 치매환자에게 적용한 다양한 비약물적 중재 연구 전체의 효과크기는 -0.33으로 "보통"의 효과크기가 나타났다. 세부적인 비약물적 중재 별 효과크기는 작업치료가 -0.26로 "보통"의 효과크기, 다감각자극이 -0.65로 "보통이상"의 효과크기로 임상적으로 유의한 차이가 있음이 증명되었다(p<.05). 중재 별로 주요하게 작용된 행동심리증상으로는 가정기반 프로그램에서는 주로 공격성, 기억력과 관련된 문제행동에 영향을 주었다. 또한, 회상치료와 작업치료는 대체적으로 무감정, 다감각자극과 음악치료는 불안이나 초조행동에 주요 변화가 있었음을 확인할 수 있었다. 본 연구 결과를 통하여 다양한 비약물적 중재가 치매환자의 행동심리증상에 효과가 있음을 확인할 수 있었으며, 중재 별로 주요하게 작용된 증상을 확인 할 수 있었다. 따라서 추후 임상에서 치매환자를 위한 비약물적 중재 시, 각 환자의 행동심리증상에 적합한 중재를 선택하여 접근하는 노력이 필요 할 것이다.

• 한국콘텐츠학회논문지
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• 제11권6호
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• pp.337-349
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• 2011

연구의 목적은 다문화가정 이주여성의 여가관 분석을 규명하는데 있다. 이 연구는 2010년 경기도 대전 충남 충북 지역 소재 다문화가정지원센터 프로그램에 참가하고 있는 이주여성들을 모집단으로 선정한 다음 유의표집방법(purposive sampling method)을 활용하여 140명의 연구대상을 표집 하였다. 최종분석에 사용된 사례수는 총 89명이다. 설문지의 신뢰도는 Cronbach's ${\alpha}$ 값이 .613이상으로 나타났다. 결론은 다음과 같다. 첫째, 다문화가정 이주여성들의 평일 여가시간은 '1~2시간'이 가장 많다. 둘째, 다문화가정 이주여성들의 주말 여가시간은 '1~2시간'이 가장 많다. 셋째, 다문화가정 이주여성들의 여가활동만족은 '보통'이 가장 많다. 넷째, 다문화가정 여가활동 선호도는 '여행'이 가장 많다. 다섯째, 다문화가정 이주여성들의 여가활동 동반자로는 '배우자'가 가장 많다. 여섯째, 연령, 학력, 국적, 기간에 따라 다문화가정 이주여성들의 여가제약은 차이가 있다.

• 한국항공우주학회지
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• 제43권4호
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• pp.326-333
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• 2015

최적화 프로그램과 연동시키기 위한 터보팬 엔진 성능해석 프로그램을 개발하고, 최적화 기법인 Particle Swarm Optimization을 이용하여 전투기 엔진의 주요 설계변수인 바이패스비, 팬 압축비, 고압압축기 압축비 및 버너출구온도에 대한 성능 최적화를 수행하였다. 최적화 목표는 순추력과 비연료소모율을 다목표 함수로 설정하였으며, 두 개의 목표에 대해 가중치를 주어 각 가중치별 최적 설계점을 도출하였다. 기본 모델은 F-18 전투기와 T-50 고등훈련기에 쓰이고 있는 F404 터보팬 엔진을 선정하여 분석을 수행하였다. 본 연구 결과로 네 개의 변수에 대한 최적 조건을 도출하고, 다양한 설계조건에 대한 최적 설계점 추이를 분석하였다.

• 한국시뮬레이션학회논문지
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• 제29권3호
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• pp.19-25
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• 2020

밭 농업 기계는 심한 경사지와 험로, 재배 작물별 정형화되지 않은 재배양식으로 인해 개발이 어렵다. 특히 고추 수확 작업은 많은 시간과 인력이 요구되는 작업으로 고령화가 가속화되는 국내 농촌의 큰 문제점이다. 본 연구는 부족한 인력을 대체하고 작업 시간을 줄이며 수확 작업을 기계화하기 위해 개발된 고추 수확기의 동적 특성을 연구하고자 한다. 고추 수확기의 동적 특성을 분석하기 위해 동역학 프로그램인 Recurdyn을 이용하여 진행하였으며 모든 분석은 공차를 전제로 분석을 진행하였다. 시뮬레이션 결과에 따라 주행 플랫폼이 주행할 수 있는 안전 범위를 제시하였다.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2002년도 유체기계 연구개발 발표회 논문집
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• pp.419-424
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• 2002

The HANARO, a multi-purpose research reactor of 30 MWth open-tank-in-pool type, has been under normal operation since its initial criticality In February, 1995. Many experiments should be safely performed to activate the utilization of the HANARO. A flow simulation facility is being developed for the endurance test of reactivity control units for extended life times and the verification of structural integrity of those experimental facilities prior to loading in the HANARO. This test facility is composed of three major parts; a half-core structure assembly, flow circulation system and support system. The flow circulation system is composed of a circulation pump, a core flow pipe, a core bypass flow pipe and instruments. The system is to be filled with de-mineralized water and the flow should be met the design flow to simulate similar flow characteristics in the core channel of the half-core test facility to the HANARO. This paper, therefore, describes an analytical analysis to study the flow behavior of the system. The computational flow analysis has been performed for the verification of system pressure variation through the three-dimensional analysis program with standard k-$\epsilon$ turbulence model and for the verification of the structural piping integrity through the finite element method. The results of the analysis are satisfied the design requirements and structural piping integrity of flow circulation system.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.95-97
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• 2005

Communication, Ocean, and Meteorological Satellite (COMS) to be launched in year 2008 will be the first Korean multi-purpose geostationary satellite aiming at three major missions, i.e.: communication, ocean, and meteorological applications. The development of systems for the meteorological mission sponsored by the Korea Meteorological Administration (KMA) consists of payloads, ground system, and data processing system. The program called COMS Meteorological Data Processing System (CMDPS) has been initiated for the development of data processing system. The primary objective ofCMDPS is to derive the level-2 environmental products from geo-Iocated and calibrated level 1.5 COMS data. Preliminary design for the level-2 data processing system consists of 16 baseline products and will be refined by end of 3rd project year. Also considered for the development are the necessary initial information such as land use and digital elevation map, algorithms for the vicarious calibration and procedures for the calibration monitoring, and radiative transfer model. Here, we briefly introduce the overall development strategy, flow chart for the intended baseline products, a few preliminary algorithm results and future plans.

• 대한의생명과학회지
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• 제16권3호
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• pp.169-177
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• 2010

Osteoporosis is a disease that increases the fracture rates and a major cause of increased mortality and morbidity in the elderly people. This study is to determine which components of body composition and metabolic syndrome risk factors are important to bone health, we analysed the relationship among bone mineral density (BMD), body composition and metabolic syndrome risk factors in females. Totally 630 females participated in a medical check-up program (mean age 47 years) were selected for this study. Body composition analysis was performed by segmental bioelectrical impedance method, muscle mass, and percent body fat were measured. We also measured metabolic syndrome risk factors including abdominal obesity, HDL-cholesterol, triglyceride, blood pressure and fasting glucose level. Metabolic syndrome was defined by NCEP-ATP III criteria. The lumbar spine and femoral neck BMD were measured using the dual energy X-ray absorptiometry. Osteopenia and osteoporosis were observed in 180 and 51 persons, respectively. Muscle mass and HDL-cholesterol decreased in osteopenia and osteoporosis groups compared to the control group, and the grade was shown progressively by the symptoms. Significant positive correlation between BMD and muscle mass was observed. Multi variable regression analyses showed that % body fat and muscle mass were independent predictors of BMD after adjustment of age, height and weight. In conclusion, the BMD showed negative correlation with the metabolic and body composition was associated with BMD.

• 한국생활과학회지
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• 제11권4호
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• pp.335-346
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• 2002

The purpose of this study was to investigate how much adolescents use the internet and how much they are addicted to the internet, and to examine the relative effect of the personal and family related variables on the internet addiction. Data was collected through a questionnaire survey given to 420 students of middle school in Kwangju province. The data were analyzed by frequency, percentage, stepwise multi-regression analysis, Cronbach's $\alpha$, and Pearson's correlations coefficient. The major findings obtained from this study were as follows: 1. The proportion of internet addiction of adolescents was 9.1%. 2. Parent's control, positive family emotion and self-efficacy were proved to be the most significant variables. The internet addiction increased as the score of parent's control got higher, and the scores of the positive family emotion and the self-efficacy lower. 3. Because the positive family emotion was found to be a very important factor in determining internet addiction, this research proposes that the further family life education program should be developed to facilitate the normal family functioning in relations with preventing internet addiction.