긍정적인 자아 개념의 지도

이승도 한국홀리스틱융합교육학회 1997 홀리스틱융합교육연구 Vol.1 No.1

항모쏘티생성시스템(CVSGS) 경계분석에 관한 연구

이승도,박범,Lee, Seung Do,Park, Peom 한국시스템엔지니어링학회 2015 시스템엔지니어링학술지 Vol.11 No.1

This paper describes boundary analysis for modeling Aircraft Carrier Sortie Generation System(CVSGS). An aircraft carrier, as a super system, is a warship going into battle by operating a number of aircraft on deck and it should be lay down a definition about aviation operations interacting between aircraft carrier and carrier air wing in small deck area. For this reason this paper models common aviation support system for generating sortie basic unit of carrier aviation operations unlike to general warship and defines boundaries between this system and aircraft carrier and carrier air wing. This paper analysis activities of aircraft carrier and embarked carrier air wing in carrier aviation operations, and analysis and defines boundaries Aircraft Carrier Sortie Generation System(CVSGS) to perform core functions in interacting between aircraft carrier and embarked carrier air wing.

일반인의 기능적 하지 길이 차이 비교

이승도 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

This study is concluded as follow: This study has drawn the following conclusion by analyzing the frequency of 120 persons who visited the YS Physical Medicine & Rehabilitation and 85 students of JJ Industrial University, 205 persons in total who have agreed to the prupose of this test, for 149 persons in the right and 56 persons in the left, while for 102 males and 103 females. Assuming that there will be a difference in the length of functional legs, this study has concluded as follows: 1) It was concluded that there is great difference in the length of functional lower parts(legs) for the group of visitors. The differences range from 0.5㎝ to 5㎝, among which 1㎝ is the most common, and all of them showed the differences in the length of legs. 2) It was concluded that there were more people with longer right leg than the ones with longer left leg. It was concluded that the people with longer right leg had longer functional lower parts(legs). However, it is considered that the difference with 2㎝ or more would have stturctural defects, which was shown to be higher in the efficient percentage of the left leg. 3) It was shown that there was no difference between males and females in the length of functional legs. Among 102 males and 103 females, it was shown that the males of right leg were 70, the female of right leg 79, the males of left leg 32, and the females of left leg 24 similarly, from which it was concluded that there was no difference. Among 205 persons, 149 persons have longer right leg and 56 persons longer left leg, while the percetage of the males with longer right leg was 49.8% of 102 males and the one of the females with longer right leg similarly 50.2. It was furthere concluded that the the persons with 1㎝ longer right leg occupied 41.6% and the ones with 1㎝ longer left leg 30.4%. As man walks upright, the lower parts(legs) playing a role of a lever supporting the pelves. As the collpased center of the legs will affect the pelvis and vertebrae, more researches should be carried out on the correction of pelvis and vertebrae in the future for right posture.

비평탄 굴착벽면의 숏크리트 라이닝에 대한 응력해석

이승도,문현구,Lee, Seungdo,Moon, Hyun-Koo 한국터널지하공간학회 2015 한국터널지하공간학회논문집 Vol.17 No.6

발파공법을 적용한 터널건설 시 발파에 의한 영향으로 굴착벽면은 평탄하지 않으며, 이후 타설되는 숏크리트의 두께가 불규칙하게 된다. 이 경우 균일한 두께의 터널 라이닝에 대한 응력해석 방법의 적용이 적절하지 않을 수 있다. 본 연구는 비평탄 굴착벽면을 모사하기 위해 주기함수를 적용하였으며, 함수의 진폭과 파장을 이용하여 숏크리트 라이닝의 두께변화를 조절할 수 있도록 하였다. 라이닝의 응력해석을 위한 이론해에 주기함수를 적용하여 근사해를 제안하였으며 이를 통해 불규칙한 숏크리트의 응력분포를 검토하였다. 다양한 응력, 물성, 기하학적 조건에 대한 수치해석을 통해 근사해의 적용성을 검증하였다. 숏크리트의 축응력은 초기응력과 지반물성뿐만 아니라 비평탄 굴착벽면에 의한 불규칙한 라이닝에 의한 영향이 큰 것을 확인하였다. 또한 숏크리트의 전단응력은 불규칙한 라이닝의 파장과 초기응력 상태의 영향이 큰 것으로 나타났다. 본 연구의 응력해석을 통해 숏크리트의 두께가 얇은 부분의 응력상태가 균일한 두께의 숏크리트 해석에 의한 결과보다 불리한 것으로 나타나, 숏크리트 타설 시 이에 대한 보완이 필요할 것으로 판단된다. When a tunnel is constructed by drilling and blasting operation, the excavated perimeter becomes uneven due to overbreak at the drill holes so that the thickness of shotcrete tends to be irregular. In this case, the conventional stress analyses for tunnel lining of a uniform thickness cannot be readily applicable. In this study, the profile of tunnel perimeter assumed to be sinusoidal in order to simulate the uneven tunnel perimeter and to control the thickness of shotcrete by using the amplitude and wavelength. By adopting the sinusoidal function to a theoretical solution of stress analysis for uniform lining, the range of axial stress of irregular shotcrete can be estimated. The applicability of the approximate solution has been verified by performing a series of numerical analyses for various conditions. It is shown that the axial stress of shorcrete is highly dependent upon the irregularity of shotcrete, together with the ground property and initial stress conditions. It is also shown the shear stress is dependent upon the wavelength, and the stress condition becomes unfavorable where the thickness of shotcrete is relatively small. The approach developed in this study shows that the stress state where the thickness is relatively small is unfavourable, and it is necessary to take complementary measures when installing shotcrete after blasting.

DoDAF를 이용한 항모 항공지원시스템 아키텍처 개발

이승도,박범,Lee, Seung Do,Park, Peom 한국시스템엔지니어링학회 2015 시스템엔지니어링학술지 Vol.11 No.1

This paper describes a development of aircraft carrier aviation support system architecture using DoDAF. The aircraft carrier, a warship performing a role of mobile sea air base in offensive and defense mission, is super system that is comprised of carrier itself and carrier-based airwing. Performing critical role in step with aviation operations in carrier-airwing interactions, the aviation support system of aircraft carrier is also system of systems. It requires a complex and integrated approach based on systems engineering in establishing concept of this complex systems. In this view, this study establishes an operational scenario and derives operational requirements by identifying aviation operations environment on deck of aircraft carrier. The study presents the operational architecture of the carrier aviation support system by using DoDAF and CASE tool CORE.

기회관리 기법 소개 및 사례 연구

이승도,박영원,오성균 한국산업경영시스템학회 2010 한국산업경영시스템학회 학술대회 Vol.1 No.-

Risk factors exist on industrial life cycle whole of military use or common use system. Also, risks exist in project for system development. Therefore, PMs that develop system concentrate a lot of efforts in risk management that discriminate hazardous factors that always exist in industrial life cycle and solved this. Because risk factors that exist in project dominate project success or failure. However, various modern systems are becoming SoS that complex and interdependence between system is gradually high. So, Program Managers or System Engineers develop and apply effective new risk management process for complex system development. Risk management is one of the most important duty of System Engineer who wish to find risk factor and control this does by systematic thought and approaches influence for system industrial life cycle whole. Recently, paradigm conversion about these risk management is achieved. That is, divide to positive factors and negative factors and manage risk factors. In particular, opportunity management technique that is proactive risk management technique that find first system development early positive factors that appear much as it is is developed and is already applied actuality in several projects. There is frequently example that this opportunity government official technique is applied in Department of Defense's weapon system development. This paper wishes to search about opportunity management technique and example applied in actuality project that can change paradigm of risk management.

열린교육과 교실 환경

이승도 한국열린교육학회 1996 열린교육연구 Vol.4 No.2

참 교육을 현장에 뿌리 내리게 해주신 김현재 회장님께……

이승도 한국열린교육학회 1996 열린교육연구 Vol.4 No.2

경기 전 경쟁상태불안에 대한 씨름선수에게 스포츠마사지처치가 미치는 영향

이승도,전형구,노덕선 한국스포츠리서치 2007 한국 스포츠 리서치 Vol.18 No.5

스포츠 마사지를 통한 시각상사척도 변화 비교

이승도 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.4