• 한국항공운항학회지
• /
• 제23권2호
• /
• pp.1-6
• /
• 2015

The RSA is intended to prevent the following five types of events from becoming an accident: landing overruns, landing undershoots, landing veer-offs, takeoff overruns and takeoff veer-offs. The improved models are based on evidence from worldwide accidents and incidents that occurred during the past 27 years. The analysis utilizes historical data from the specific airport and allows the user to take into consideration specific operational conditions to which movements are subject, as well as the actual or planned RSA conditions in terms of dimensions, configuration, type of terrain, and boundaries defined by existing obstacles. This paper shows how to apply the improved models for Risk Assessment of Runway Safety Areas (Airport cooperative research program(ACRP) Report 50) into an airport and the outcome differences between the old models based on ACRP report 3-Analysis of aircraft overrun and undershoots for runway safety areas and the new models from ACRP report 50 in the specific airport.

• 한국도서관정보학회지
• /
• 제45권3호
• /
• pp.249-270
• /
• 2014

본 연구의 목적은 도서관 마케팅 모형의 제안에 있다. 연구 목적 달성을 위해 활용된 방법론은 국내 문헌정보학자들의 도서관 마케팅관련 연구논문들에 대한 내용분석방법이다. 관련 연구논문들에 대하여 질적 내용분석방법을 활용하여 분석하였으며, 이의 결과를 일반 비영리조직의 마케팅모형과 비교 분석하여 최종 도서관 마케팅모형을 제시하였다. 최종 도서관 마케팅모형의 구성요소는 첫째, '고객(도서관 이용자)', 둘째, '내적 환경 변화', 셋째, '외적 환경 변화', 넷째, '도서관 마케팅 목표 설정', 다섯째, '다양한 도서관 마케팅 전략', 여섯째, '구체적 마케팅 실행계획의 수립', 일곱째, '실행계획의 집행', 여덟째, '평가', 아홉째, '긍정적 평가 결과', 열 번째, '부정적 평가 결과', 열한 번째, '고객만족', 열두번째, '도서관 이용률 제고', 열세 번째, '도서관의 긍정적 사회적 가치 확립'이다.

• 대한산업공학회지
• /
• 제5권1호
• /
• pp.1-6
• /
• 1979

This paper discusses an application of discrete variable Servo Theory to the analysis of the effectiveness of production-inventory control system which uses exponential smoothing as a specific forecasting technique by establishing a new model which consists of such three departments as production planning, production, and inventory. The objective of the new production-inventory model is to keep the production to the optimal level of minimum production cost in production planning problem for obtaining, the stability of inventory subject to demand variation. On this basis, the dynamic characteristic of the system with the change of the parameters is clarified by the numerical analysis. The results of the numerical analysis show the effect that is obtained by the simultaneous stability of production and inventory as soon as possible.

• 한국문헌정보학회지
• /
• 제42권3호
• /
• pp.133-168
• /
• 2008

도서관 정보 환경의 발전에 따라 서비스를 개선하고 이용자 요구를 충족시키기 위해 사서들은 필수적으로 계속교육 프로그램에 참여하고 있다. 대학도서관사서들을 위한 계속교육 교과과정을 개발하기 위하여, 국내외 선행연구와 현행 계속교육 프로그램 사례를 고찰하였으며. 우리나라 대학도서관 사서들을 대상으로 설문조사를 수행하여 교육 요구 주제를 식별하였다. 분석 결과를 기초로. 학습자를 중간관리자와 실무자로 구분하여 각각 계속교육 교과과정을 개발하였다. 중간관리자를 위한 교과과정은 9개 영역 27개 과목으로 구성되었으며 실무자를 위한 교과과정은 7개 영역 25개 과목으로 구성되었다. 또한 수요가 높은 부문을 직급별로 하나씩 선택하여, '도서관 마케팅'과 '디지털정보자원 구축 및 관리' 과정에 대한 구체적인 교육프로그램 모델을 개발하였다. 교육프로그램 모델에서는 교육목표. 교육내용, 교수학습 전략, 교육시간, 교수방법과 도구 강사진 등에 관한 사항을 제시하였다. 마지막으로 계속교육의 정착과 발전을 위한 방안을 제언하였다.

• 한국정보과학회논문지:소프트웨어및응용
• /
• 제29권11호
• /
• pp.837-850
• /
• 2002

본 논문에서는 인지적 긍정/부정 선택 과제의 수행 시 뇌파를 이용하여 피험자의 반응시간 RT(response time)를 예측하는 방법에 관하여 기술한다. 실험 task에서 피험자는 시각적 자극에 대한 반응, 문제의 해석, 손 움직임의 조절, 손동작 등과 관련된 뇌활동을 한다. 이와 같은 피험자의 정신상태의 변화를 CT(cut time), ST(selection time), RP(repeated period) 등을 정의하여 모델링하고, 선택시간 ST를 감지하여 피험자의 반응시간 RT를 예측한다. ST를 감지하기 위하여 측정한 뇌파로부터 $\alpha$, $\beta$, ${\gamma}$파를 분리하고, 공간적인 관계를 고려하여 설정한 4쌍의 전극들로부터 3가지의 특징들을 추출한다. 추출한 특징들을 분석하여 각 피험자별로 나타나는 상세 규칙(specific rule)과 공통적인 특징들로 구성된 일반 규칙(meta rule)들을 설정한다. 8명의 피험자를 대상으로 설정한 규칙들을 적용하여 평균 83%의 ST 감지 성공률을 보이고, ST 감지 이후 약 0.73초에서 RT가 나타나는 것을 보인다. 설정한 규칙들의 타당성을 검증하기 위하여 8명 중 2명의 피험자에 대해서 재실험을 하고, 이들 데이타에 적용한 결과를 보인다. 본 논문에서 제안한 방법을 기존의 인지적인 정신상태 판별을 위한 방법들이나 왼손/오른손 동작구분 방법들과 결합하여 사용할 경우 BCI를 위한 기반 기술로 활용될 것으로 기대한다.

• 동서간호학연구지
• /
• 제18권1호
• /
• pp.31-39
• /
• 2012

Purpose: The purpose of this study was to investigate the relationship between happiness and Yangsaeng in university students of the Republic of Korea. Yangsaeng is a traditional health care regimen that incorporates specific principles and methods with the purpose of improving the health and longevity of life. Methods: The subjects of this study were 358 university students in Korea. Data were collected by using a self-reported questionnaire. Data were analyzed using descriptive statistics, Pearson correlation coefficient, independent t-test, one-way ANOVA, Scheffe test, hierarchial multiple regression, and Cronbach's alpha. Results: Practicing Yangsaeng yielded a statistically significant difference depending on the subject's satisfaction with his/her major, monthly household income, and smoking tendencies. In comparison, the statistical degree of happiness depended on the subject's satisfaction with the his/her major, monthly household income, and boyfriend or girlfriend situations. Yangsaeng was positively correlated with happiness (r=.66, p<.001). Hierarchial multiple regression showed that the Yangsaeng explained 43% of happiness, and if major satisfaction, monthly household income, and boyfriend or girlfriend situations were also considered, this model explained 56% of happiness. Conclusion: The Yangsaeng oriental health care regimen could produce a higher happiness level. Therefore, Yangsaeng could be recommended as a useful means of promoting health and happiness.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• 제21권2호
• /
• pp.103-109
• /
• 2010

Objectives : The purpose of the current study was to evaluate subject quality of life in depressed parents of boys with Duchenne/Becker muscular dystrophy (DMB/ BMD). In addition, a specific relationship between subject quality of life and the severity of depressive symptom was explored. Methods : The participants were 15 depressed parents who had moderate to severe depressive symptoms and 35 nondepressed parents of boys with DMD/BMD. All participants completed the World Health Organization Quality Of Life Scale, Brief Version and the Beck Depression Inventory. Other instruments included the Family Relationship Scale and the Child Behavior Checklist. Results : Among various model predictors, only higher score on the Beck Depression Inventory predicted lower scores on all domains of the World Health Organization Quality Of Life Scale, Brief Version. In addition, depressed parents had significantly lower scores on all domains of the World Health Organization Quality Of Life Scale, Brief Version including physical health, psychological health, social relationships, and environment, relative to non-depressed parents. Conclusion : Findings of the current study suggest that all domains of subjective quality of life may be influenced by depressive symptoms in parents of boys with DMD/BMD.

• 한국초등과학교육학회지:초등과학교육
• /
• 제35권4호
• /
• pp.426-441
• /
• 2016

The purpose of this study was getting the information for successful application to the national curriculum and students' core competencies enhancement, through investigation about competencies discussed in 2015 revised national curriculum development process and analysis about perception of 150 elementary school teachers in study. The results were as follows : Communication skill is considered to be the most important. Thinking ability what has been important traditionally is the middle of the rankings. Elementary school teachers think that a competency is specific to a subject. From this point of view, Creative/Scientific Problem-Solving Ability is the most important in science. They think that the enhancing of the ability of inquiry performance is highlighted in current science class. On elementary school teachers' awareness, inquiry model is the most effective in enhancing of scientific thinking and the ability of inquiry performance. And STS instruction model is in the other. PBL learning model and experimental inquiry model is the most effective in enhancing a competency has the highest feasibility like scientific thinking or the ability of inquiry performance.

• International Journal of Contents
• /
• 제11권2호
• /
• pp.20-30
• /
• 2015

We propose a new method that specifies objective image quality factors by evaluating an image quality measurement model using random images. In other words, No-Reference variables are used to evaluate the quality of an original image without using any reference for comparison. 1000 portrait images were collected from a web gallery with votes constituting over 30 recommendation values. The bottom-up data collecting process was used to calculate the following image quality factors: total range, average, standard deviation, normalized distribution, z-score, preference percentage. A final grade is awarded out of 100 points, and this method ranks and grades the final estimated image quality preference in terms of total image quality factors. The results of the proposed image quality evaluation model consist of the specific dynamic range, skin tone R, G, B, L, A, B, and RSC contrast. We can present the total for the expected preference points as the average of the objective image qualities. Our proposed image quality evaluation model can measure the preferences for an actual image using a statistical analysis. The results indicate that this is a practical image quality measurement model that can extract a subject's preferred image quality.

• 대한산업공학회지
• /
• 제21권4호
• /
• pp.609-628
• /
• 1995

This paper presents a reliability model and a data-analytic procedure for a repairable unit subject to failures due to multiple non-identifiable causes. We regard a failure cause as a state and assume the life distribution for each cause to be exponential. Then we represent the dependency among the causes by a Markov switching model(MSM) and estimate the transition probabilities and failure rates by maximum likelihood(ML) method. The failure data are incomplete due to masked causes of failures. We propose a specific version of EM(expectation and maximization) algorithm for finding maximum likelihood estimator(MLE) under this situation. We also develop statistical procedures for determining the number of significant states and for testing independency between state transitions. Our model requires only the successive failure times of a unit to perform the statistical analysis. It works well even when the causes of failures are fully masked, which overcomes the major deficiency of competing risk models. It does not require the assumption of stationarity or independency which is essential in mixture models. The stationary probabilities of states can be easily calculated from the transition probabilities estimated in our model, so it covers mixture models in general. The results of simulations show the consistency of estimation and accuracy gradually increasing according to the difference of failure rates and the frequency of transitions among the states.