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양동순,Yang, Dong-Soon 한국국방경영분석학회 1978 한국국방경영분석학회지 Vol.4 No.1
전차의 Dimension은 다음과 같은 전차의 기능에 영향을 미친다. 즉 Firepower, Mobility, Armorthickness and Target detection Instrument등, 이들은 서로 상관성을 가지고 있다. 승무원(crew)을 보호한다고 하며 지나치게 장갑(thickness)에 중점을 두면 전차의 속도가 감소되여 적의 대전차포에 취약해지며 기습적인 기동력을 발휘하지 못한바. 반면에 공격적인 기동력을 중요시하며 속도에 치중한다면 Engine의 크기가 커지며 그 원인은 전차의 크기를 더하여 좋은 Target의 대상이 된다. 여기에서 한가지 예를 들었지만 이러한 상관관계는 많이 존재하며 이러한 약점을 제거하고서도 좋은 전차를 설계하는 것이 목적이다. 좋은 Horse Power를 내면서도 재래식 Engine 보다 Engine의 크기를 작게하는 방법은 없을까? 하는 점을 여기서 엿볼 수 있다. 시간과 예산을 절약하려면 생산전에 충분한 Disign과 연구가 필요함을 강조하고 있다.
가변 수주진동장치를 이용한 고효율 파력발전에 관한 연구
양동순(Dong-Soon Yang),조병학(Byung-Hak Cho) 한국해양공학회 2009 한국해양공학회지 Vol.23 No.5
The results of a simulation study of variable liquid column oscillations in U-tanks with a novel control scheme are presented. The configuration under investigation is analogous to that of the tuned liquid-column damper used to suppress oscillatory motion in large structures like tall buildings and cargo ships. However, by virtue of an adequate controller, the response of amplitude of the U-tanks becomes larger in a desired frequency range. The motion of wave energy conversion system equipped with a variable liquid column oscillator is described by a series of nonlinear differential equations. The equations describe the motion of body under ocean wave excitation, and the motion of liquid with an air-spring effect caused by the compression and expansion of air in vertical liquid columns and air chambers. It is shown that the effect of the air-spring has a vital role to maintain the natural frequency of oscillation in the system to synchronize with the frequency of the ocean wave, thus the system provides the most effective mode for energy extraction from the ocean.
송동훈(Dong Hoon Song),양동순(Dong Soon Yang),방동식(Dong Sik Bang) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.6
A case of 39-year-old male with keratosis palmoplantaria nummularis was reported. The skin lesions were characterized by the presence of painful focal keratoses on the plantar pressure points. Biopsy of a keratotic plantar lesion revealed excessive hyperkerstosis, hypergranulosis, focal hypogranulosis, and acanthosis in the epidermis. We could observe aymptomatic relief of this patient who was treated with mixture of corticosteroid, 25% urea and 2.5% salicylic acid.
Behcet 증후군의 분류아형과 현증상에 따른 백혈구 이동억제검사 성적
이은소(Eun So Lee),양동순(Dong Soon Yang),이승헌(Seung Hun Lee),방동식(Dong Sik Bang),이성낙(Sung Nack Lee),최인홍(In Hong Choi),이봉기(Bong Ki Lee),윤정구(Jung Koo Youn) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.6
This study was undertaken to investigate the immunological mechanism of Behqet s syndrome, considered to be important in the pathogenesis of the disease. Seventy- three patients with complete, incomplete and suspected types of Behget's syndrotne were tested for leukocyte migration ingibition factor(LIF), one of the lymphokines. The results were as follows : 1. There was no difference between the average LIF activity of all the patients and that of eontrol. 2. LIF activity of complete type, according to Shirnizus classification, was significaritly lower than the control value. 3. LIF activity of ocular type, according to Lehners classification, was signficantly lower than the control value. 4. LIF activity for patients with 4 clinical symptoms was well below the value for patients with less symptomes 5. For patients with single clinical symptom, LIF activity of complete type was well below the values of incomplete and suspected types. 6. In suspected and mucocutaneous types, LIF activity was low when the patients showed two clinical symptoms than one. Thus, LIF activity was low for patients with complete, ocular and neurological types and with multiple symptorns.
부체 개수에 따른 가동물체형 파력발전기 VLCO 성능비교
김병완(BYOUNG WAN KIM),조석규(SEOK KYU CHO),홍사영(SA YOUNG HONG),홍석원(SEOK WON HONG),양동순(DONG SOON YANG) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6
KEPRI(Korea Electric Power Research Institute) developed a new movable wave energy converter which comprises linked PTO(Power Takeoff) and VLCO(Variable Liquid Column Oscillator). And, comparable performances of the VLCO system were investigated. The proposed VLCO system has two floating bodies. If it has three bodies, the PTO performances will be changed. This study numerically analyzes the behavior of 3-body VLCO system and compares its performance with 2-body system. From the analysis results, some findings about the effect of number of bodies on VLCO's performance are discussed.
윤병식,양승한,김영호,김용식,양동순 한국비파괴검사학회 2004 한국비파괴검사학회지 Vol.24 No.4
국내 원자력발전소의 Class1과 Class2 배관검사에 적용할 수 있는 초음파탐상 검사자, 장비 그리고 절차서에 대한 한국형 기량검증(KPD) 시스템을 구축하였다. PD 방법을 적용한 검사결과와 전통적인 dB-drop 방법을 이용한 검사결과를 상호 비교하기 위하여 Round Robin Test(RRT)를 수행하였다. RRT 결과는 PD 방법의 신뢰성이 dB Drop 방법보다 우수한 것으로 나타났다. 이러한 결과로부터 원자력발전소 가동중검사에 PD 방법을 적용함으로써 초음파탐상검사 결과의 신뢰성이 더욱 향상될 것으로 기대된다. The Korean Performance Demonstration(KPD) System for the ultrasonic testing personnel, equipments and procedures applicable to the Class 1 and 2 piping examination for nuclear power plant in Korean has been established. A round robin test was conducted in order to compare the examination results by the method of Performance Demonstration(PD) with the traditional dB-drop method. As a result, adoption of the PD method to the in-service inspection of the nuclear power plants will improve the reliability of the ultrasonic test results.