• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.165-166
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• 2016

방송통신고등학교는 국가수준 교육과정의 개정 시기를 맞아 방송고 학습자 특성을 반영한 온라인 콘텐츠 설계를 위해서 콘텐츠 질 분석, 수업 구조 분석, 화면 로그인 경로 분석 등을 통해서 시행하고 방송고 온라인 콘텐츠 교수설계 모형을 도출하였다. 이에 따라 본 연구에서 도출한 온라인 콘텐츠 교수설계 모형은 먼저 크게 수업 설계, 수업 실행, 수업 평가로 구성되어 있다. 수업 설계는 학습자 분석, 교수환경분석, 교수 분석, 교수 전략개발의 단계를 가지고 있다. 수업 실행은 수업에 대한 동기 유발, 선수학습 회상, 수업 목표 제시, 수업 내용 제시 및 학습 안내 제공, 수행 행동 유도 및 피드백 제공, 목표 수행 평가, 파지 및 전이 단계를 가지고 있다. 수업 평가는 최종 수업 평가 및 최종 피드백 제공 단계를 가지고 있다.

• Journal of the Society of Naval Architects of Korea
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• v.36 no.4
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• pp.64-76
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• 1999

In this paper hydroelastic experimental techniques of very large floating offshore structures are suggested based on the model test carried out in the UOU Ocean Engineering Wide Tank. The prototype is a box-shaped floating structure with length of 300m, breadth of 60m, depth of 2m and draft of 0.5m and longitudinal bending rigidity as $4.87{\times}10^{10}kgm^2$. The scale ratio is 1/42.857. The model is realized by aluminum square pipes with the section dimension of $20mm{\times}20mm$. The numbers of longitudinal and transverse pipes are 7 and 35 respectively. Heave motions at selected points are measured with potentiometers and bending moments with strain gages.

• Journal of the Korean Society of Marine Environment & Safety
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• v.20 no.4
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• pp.443-450
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• 2014

In this study, we have discussed about the effect of hydrofoil arrangement and longitudinal moment characteristic on longitudinal motion stability of fully-submerged hydrofoil by the experiment of tandem hydrofoil model. First of all, tandem hydrofoil model that has canard wing arrangement has been made and characteristics of lift force and drag force by performing the lift force and drag force measuring experiment has also been estimated. Besides, tandem hydrofoil model's wing arrangement which has the initial stability and self stability of longitudinal motion has also been determined. In longitudinal stability experiment of tandem hydrofoil model, the motion characteristic of pitch and heave and the longitudinal stability of foil borne condition by variation of self stability of longitudinal moment and longitudinal distance are estimated. The result from the experiment and it's important conclusion can be described as below; Increase the self stability for longitudinal moment, the higher self stability for pitch motions in a constant pitch angles. By increasing the self stability for longitudinal moment, the range of fluctuation of pitch motion and heave motion for pitch angle also will change relatively small and longitudinal stability is excellent. Lastly, when the lift force of hydrofoil is remain constants, we can conclude that securing the enough self stability for longitudinal moment is essential for stable foil borne condition of tandem hydrofoil.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.1
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• pp.40-46
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• 2017

Shipping activities have become possible in the Arctic Ocean due to melting ice by global warming. An increasing number of vessels are passing through the Arctic Ocean consequently bringing concerns of ship-iceberg collisions. Thus, most classification societies have implemented regulations to determine requirements for ice strengthening in ship structures. This paper presents the simulation results of an ice-strengthened polar class ship after an iceberg collision. The ice-strengthened polar class ship was created in accordance with the Unified Requirements for a Polar-Ship (IACS URI). An elastic-perfect plastic ice model was adopted for this simulation with a spherical shape. A Tsai-Wu yield surface was also used for the ice model. Collision simulations were conducted under the commercial code LS-DYNA 971. Hull deformations on the ice-strengthened foreship structure and collision interaction forces have been analysed in this paper. A normal-strength ship structure in an iceberg collision was also simulated to present comparison results. Distinct differences in structural strength against ice impact forces were shown between the ice-strengthened and normal-strength ship structures in the simulation results. About 1.8 m depth of hull deformation was found on the normal ship, whereas 1.0 m depth of hull deformation was left on the ice-strengthened polar class ship.

• Journal of the military operations research society of Korea
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• v.24 no.1
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• pp.58-67
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• 1998

This paper studies on physical strength measurement utilized for selecting military sportsmen. In order to estimate physical potential capability of a volunteer for a sportsmen, scores of physical strength factors are used and a regression model is developed. And then the results of this model and current physical strength measurement are compared. This paper shows that the model developed here is more effective than current measurement, since measurable physical strength factors are reduced and physical strength factors are quantified by comparing each other.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.359-361
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• 2011

예선이 부선을 선미예인하고 있는 상황에서의 예부선 조종특성을 확인하기 위하여, 예부선 통합 실선시운전 시험을 수행하였다. 부선을 예인하는 상황에서의 저항시험, 가감속시험, 좌현/우현 10도 선회시험, 좌현/우현 20도 선회시험, 부선 선수동요각을 기준으로 하는 10도 지그재그시험, 20도 지그재그 시험을 통하여 다양한 상황에서의 예선과 부선의 운항 특성을 확인하였다. 본시험 결과는 향후 예부선의 자유항주 모형시험 결과와 함께, 예부선의 통합운항을 모사하는 수학모델 검증에 사용될 예정이다.

• Journal of the Society of Naval Architects of Korea
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• v.49 no.1
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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.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.8
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• pp.5198-5206
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• 2015

The purpose of this study was to examine the effect of social support from friend, senior junior, and coach on student-athletes' stress and deviant behavior. By using convenience sampling method of non-probability sampling, a total of 350 student-athletes from D and G city were selected. Of 217 copies of the questionnaire gathered, 35 were discarded owing to having excessive missing values. Thus, by analysing a total of 182 surveys with structural equation modeling through AMOS 20.0 statistics program, this study found the followings. First, social support has a negative influence on stress. Second, stress has a positive influence on deviant behavior. Third, social support has a negative influence on deviant behavior mediated by stress.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.525-538
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• 2019

The objective of this study is to verify the effects of the Taekwondo athletes' sports participation motivation on the achievement orientation and achievement behaviors and to verify the mediating effect of the achievement orientation. The subjects of this study were 256 athletes' in Honam. The questionnaire data were utilized for verification of hypotheses through structural equation model analysis. As a result of verification, Taekwondo athletes' sports participation motivation presented a statistically significant positive correlation with their achievement orientation. The achievement orientation showed a significant positive effect on the achievement behaviors with the mediating effect of the achievement orientation. Finally, the result of this study is meaningful in a point of view of the effect of Taekwondo athletes' sports participation motivation on the achievement orientation and achievement behaviors. It is worthwhile to verify the mediation effect of achievement orientation.

• Journal of the Korean Data and Information Science Society
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• v.26 no.4
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• pp.957-970
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• 2015

The purpose of this study was to analyze records of Korean pro-basketball using general linear model (two-way ANOVA and hierarchical multiple regression analysis). Korea Basketball League (KBL) informed the records (2014-2015 season) of this study. The eight variables (TA, 2PA, 3PA, 2P, 3P, Ast, TFB, CH) were selected in content validity. SPSS program was used to analyze general linear model. All alpha level was set at 0.05. Major results were as follow. 3PA had significant interaction effect between victory & defeat variable and home & away variable. Victory teams showed that 3PA was higher in home games than away games, and defeat teams was the other. 2PA, AS, TFB, and CH were selected significant variables affecting victory and defeat. In result of hierarchical regression, Ast had significant moderation effect between 3PA and TS. TFB also had significant moderation effect between AS between 2P. The other construct (Ast between 2PA and TS; TFB between AS between 3P) had no significant moderation effect. In the effect of 2PA, 3PA and Ast to TS, CH also had no significant moderation effect.