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PSC 공법을 적용한 장경간 지하 구조물의 보-기둥 접합부에 대한 실험 연구
남상욱(Nam Sang-Uk),송한범(Song Han-Beom),이원호(Yi Waon-Ho),백영수(Baik Young-Soo),태경훈(Tae Kyung-Hoon),강영웅(Kang Young-Woong) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
The objective of this work is based on the comparison on behaviors of reinforced concrete and prestressed concrete beam-column joint, which have similar dimensions and design strengths. A comprehensive experimental test involving 1 reinforced concrete and 2 prestressed concrete beam-column joint specimens has been performed. Through experimental test, the behavior of typical prestressed concrete beam-column joint was established.
12주간의 복합운동프로그램이 노인의 체력과 혈압 및 혈중 지질에 미치는 영향
오주희(Ju Hee Oh),엄현섭(Hyun Sub Eum),고웅곤(Ung Kon Ko),백영수(Young Soo Baik) 한국발육발달학회 2012 한국발육발달학회지 Vol.20 No.3
The purpose of this study was to see the effects of the combined exercise program on the elderly in both physical fitness and in their blood lipids. With a given time frame of 12 weeks, it was to see if these exercises can contribute to a healthy lifestyle that they seemed to want. The 26 subjects were randomly chosen and prior to this engagement, they were tested to see if they fit the subject model requirement. All of the subjects were in normal physical condition without any serious from diseases. The changes found in these subjects after 12 weeks combined exercise program on the elderly were as follows: 1) There were no significant differences in grip strength and lower limb muscular strength, but changes in one leg standing with eyes opened have been increased shown significant increases balance, and then significant decreases 6m timed up-and-go. 2) There were no significant differences in systolic and diastolic blood pressure, HDL-C and LDLC. 3) There have been shown significant decreases in TG, TC and VLDL-C.
송한범(Song Han-Beom),오상훈(Oh Sang-Hoon),백영수(Baik Young-Soo),이동우(Lee Dong-Woo) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(구조계)
Reinforced concrete coupled shear walls in tall buildings are known as efficient structural systems to provide lateral resistance to wind and earthquake. The coupling beams connecting two shear walls are normally subjected to very high shear stresses and must before the wall piers, behave in a ductile manner, and exhibit significant energy dissipation characteristic. This paper reports experimental study to investigate the behavior and shear force of the SRC coupling beams under cyclic loading. In the test program, 3 SRC coupling beam specimens are constructed and tested. Through experimental test, the seismic behavior of typical SRC coupling beams was established.
외단열 PC 벽체 시스템 개발 및 실용화를 위한 성능 평가
이상헌(Lee, Sang-Heon),최지혜(Choi, Ji-Hye),백영수(Baik, Young-Soo),백호(Baik, Ho),정문영(Jeong, Moon-Young) 대한건축학회 2015 대한건축학회논문집 Vol.31 No.9
The purpose of this study is to develop high performance of exterior insulation precast concrete wall and evaluate performance of the wall for the basic, production, construction and energy. The result of this study as follows : 1) High performance exterior insulation precast concrete wall was developed that the insulation performance is 40% higher and the weight is 50% less than existed RC-Wall. 2) The basic performance of PC-Wall was allowable in ASTM and AAMA standards. 3) The production performance was secured as manufacturing production system and mass production would be able. The construction was taken about 40 minutes for each PC-Wall. 4) In comparison with interior insulation system, linear thermal transmittance and annual heating energy demand of exterior PC-Wall apartment were decreased 18.4~82.5% and 17.6% respectively.
Jung-Hoon Koo(구정훈),Hyun-Sub Eum(엄현섭),Eun-Bum Kang(강은범),In-Su Kwon(권인수),Dong-Cheol Yeom(염동철),Gil-Young An(안길영),Yoo-Sung Oh(오유성),Young-Soo Baik(백영수),In-Ho Cho(조인호),Joon-Yong Cho(조준용) 한국생명과학회 2010 생명과학회지 Vol.20 No.3
본 연구의 목적은 PS-2 (N141I) 알츠하이머 형질전환 모델 생쥐를 대상으로 트레드밀 운동이 뇌의 세포질과 미토콘드리아의 Aβ-42, cytochrome c, SOD-1, 2 and Sirt-3 단백질 발현에 미치는 효과를 알아보는데 있다. 우선 알츠하이머 형질전환 생쥐를 Non-Tg-sedentary (n=5), Non-Tg-treadmill exercise (n=5) 집단과 Tg-sedentary (n=5), Tg-treadmill exercise (n=5) 집단으로 구분하고 트레드밀 운동을 통한 신경보호 효과를 검증하기 위해 Tg와 Non-Tg집단에 12주간 트레드밀 운동을 수행한 후 인지능력을 살펴보고 뇌의 세포질과 미토콘드리아의 Aβ-42, cytochrome c, anti-oxidant enzymes (SOD-1, SOD-2)와 Sirt-3 단백질을 분석하였다. 먼저 트레드밀운동은 Tg 집단에서 인지능력의 개선을 나타냈으며 미토콘드리아의 Aβ-42와 세포질의 cytochrome c 단백질의 감소와 항산화 효소인 SOD-1, SOD-2를 유의하게 증가시켰다. 게다가 트레드밀 운동은 모든 집단에서 Sirt-3 단백질의 발현을 증가시켰다. 따라서 트레드밀 운동은 인지능력의 향상과 세포 내 스트레스를 유발하는 Aβ-42를 억제시켜 알츠하이머 질환을 개선시킬 수 있는 효과적인 방법이라고 생각된다. The purpose of this study was to investigate the effects of treadmill exercise on Aβ-42, cytochrome c, SOD-1, 2 and Sirt-3 protein expressions in brain cytosol and mitochondria in mutant (N141I) presenilin-2 transgenic mice with Alzheimer's disease (AD). The mice were divided into four groups (Non-Tg-sedentary, n=5; Non-Tg treadmill exercise, n=5; Tg-sedentary, n=5; Tg treadmill exercise, n=5). To evaluate the neuroprotective effect of treadmill exercise, Non-Tg and Tg mice were subjected to exercise training on a treadmill for 12 wk, after which their brain cytosol and mitochondria were evaluated to determine whether any changes in the cognitive performance, Aβ-42 protein, cytochrome c protein, anti-oxidant enzymes (SOD-1, SOD-2) and Sirt-3 protein had occurred. The results indicated that treadmill exercise resulted in amelioration in cognitive deficits of Tg mice. In addition, the expressions of mitochondrial Aβ-42 and cytosolic cytochrome c protein were decreased in the brains of Tg mice after treadmill exercise, whereas antioxidant enzymes, SOD-1 and SOD-2 were significantly increased in response to treadmill exercise. Furthermore, treadmill exercise significantly increased the expression of Sirt-3 protein in Non-Tg and Tg mice. Taken together, these results suggest that treadmill exercise is a simple behavioral intervention which can sufficiently improve cognitive performance and inhibit Aβ-induced oxidative stress in AD.
전교통 동맥류의 분류와 수술을 시행한 135 예에 대한 임상보고
백민우,김달수,김영,박춘근,김문찬,이상원,조태훈,조병일,이재수,윤석훈,하영수,강준기,송진언 대한신경외과학회 1986 Journal of Korean neurosurgical society Vol.15 No.1
During the 10-year period up to December 1984, 176 patients with anterior communicating aneurysm (ACOMA) among total 467 patients of intracranial aneurysms were admitted to this Catholic Medical Center. Of these, 135 cases of ACOMA were operated by direct intracranial procedures. To analyse the factors influencing the mortality involving in surgery of 135 patients with ACOMA, a classification of ACOMA was attempted. The origins and projections of aneurysms, anatomical variations were analysed with the aid of angiography, intraoperative findings and intraoperative photographs which permitted the establishment of a classification of ACOMA with their direction. Our classification of operated 135 cases of ACOMA are seven types: 32 anterior(23.7%), 30 anterior-rostral(22.2%), 42 anterior-caudal (31.1%), 3 posterior(2.2%), 18 posterior-rostral(13.4%), 4 posteriorcaudal (3.0%), caudal 6(4.4%), respectively. Most of ACOMA projecting anteriorly, anterio-rostrally were situated above or between the optic nerve, and the less frequent posterior-caudal and inferior aneurysms were in close proximity to hypothalamic branches of the anterior communicating artery and A₂ segment. There was on overall operative mortality of 6%. The surgical morbidity and mortality were significantly higher in the posteriorly projecting group, garticulary in the posterior-caudal direction. In direct surgery of ACOMA, subpial resection of the gyrus rectus was sffective for not only anteriorly, but also posteriorly directing aneurysms.