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박종욱,권구정,김병일,이정윤,Park, Jong-Wook,Kwon, Koo-Jung,Kim, Byoung-Il,Lee, Jung-Yoon 대한건축학회 2011 대한건축학회논문집 Vol.27 No.8
Plastic hinges are generally developed at both ends of reinforced concrete (RC) beams in the post-yield region. To complete the plastic deformation mechanism, column plastic hinges at the base of the structure are also required. The longitudinal axial strain in the plastic hinge regions of RC columns has a significant influence on the behavior of RC structures subjected to reversed cyclic loading. This strain affects energy dissipation in the hysteretic response by causing the sliding along interconnecting wide flexural cracks. In addition, the strain also influences on the deformability of RC structures. In order to investigate the effects of the axial force on the axial strain in the plastic hinge region of RC members, experimental and analytical study was performed with ten RC members subjected to reversed cyclic loading. The experimental and analytical results indicated that the axial force significantly decreased the axial strain in the plastic hinge region of RC members.
부산 일부지역 근로자들의 재해성 요부손상에 대한 사회의학적 조사
박종욱,김돈균,이수일,조병만,조봉수,김영욱,Park, Jong-Ook,Kim, Don-Kyoun,Lee, Su-Ill,Cho, Byung-Mann,Cho, Bong-Soo,Kim, Young-Wook 대한예방의학회 1994 Journal of Preventive Medicine and Public Health Vol.27 No.2
This survey was performed to obtain the basic information for the prevention and management of occupational low back injury (LBI). The subjects of this survey were 952 workers (male, 892 ; female, 60) who had taken occupational LBI in some industries of Pusan area from January 1 to December 31, 1991. Observation period was 2.6 years from the beginning to the end of medical treatment. The obtained results were summarized as follows ; 1. The proportion of LBI workers was 15.9% of the workers who had taken any occpational injuries and 0.32% of all workers in this surveyed area. 2. 8.0% of the workers had taken LBI on the 1st day of employment and 55.2% of the workers were within one year, 91.4% of the workers were within 10 years according to cumulative frequency distribution. 3. Handling of heavy objects was the most common cause of LBI (32.0%) and fall down (26.9%) and slip down (16.3%) were the next in order. 4. The most common causes of both lumbar sprain and HNP were handling of heavy objects and that of lumbar fracture was fall down. 5. The mean duration for medical treatment of LBI workers was 143 days. 6. The total direct compensation cost for LBI workers was 6,736 million Won and the proportion of medical, resting, disability compensation costs were 25.0%, 37.0%, 38.0 % respectively. 7. The percentages of retreated workers and disabled workers were 11.9% (113 persons) and 22.9% (218 persons) of total LBI workers respectively.
White Fibrous Papulosis of the Neck
박종욱 ( Jong Wook Park ),정경은 ( Kyung Eun Jung ),진원우 ( Won Woo Jin ),정진걸 ( Jin Geol Jung ),노기웅 ( Ki Woong Ro ),김명화 ( Myung Hwa Kim ),신용우 ( Yong Woo Cinn ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.2
White fibrous papulosis of the neck is a rare disorder, characterized by asymptomatic white papules that appear around neck in elderly people. The histopathologic findings showed thickened collagen bundles in the papillary to mid dermis. We report a case of white fibrous papulosis of the neck in a 53-year-old man. (Korean J Dermatol 2008;46(2):231∼233)
컴퓨테이션 방법론을 활용한 태양광 패널 설치 위치에 따른 최적의 연간 일사량 분석에 관한 가이드라인 제시
박종욱(Park, Jong-Wook),이대송(Lee, Dae-Song) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
With the Increased demand for renewable energy worldwide, the demand for solar energy also enlarged, especially in cities, due to its minimum area needed for installation. However, as the urban context is surrounded by buildings, the amount of total solar radiation projected on the solar panel decreases due to shadings from nearby buildings. So, the purpose of this study is to propose guideline for the analysis of optimal annual solar radiation projected on the surface of solar panel considering the shades from nearby context by using optimization on computational methodology. The analysis was conducted using softwares like Grasshopper, Ladybug and Galapagos.