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이희송,Lee, Hui-Song 에너지절약전문기업협회 2008 esco Vol.55 No.-
클린턴 기후변화 이니셔티브(이하 CCI)는 미국의 빌 클린턴 전 대통령이 실질적이고, 측정이 가능하면서도 획기적인 방법으로 기후 변화 문제를 해결하기 위해 시작한 프로그램이다. 현재 각국의 정부 및 자치단체들과 협력하여 다양한 사업을 펼치고 있는 CCI에 대해 알아본다.
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김정기,이희송 중앙대학교 기술과학연구소 1991 기술과학연구소 논문집 Vol.21 No.-
An efficient finite element method(FEM) for analyzing the propagation characteristic of a wide variety of waveguides is presented. A Variational expression suited the finite element method is formulated in terms of the transverse electric ad magnetic field components. In this approach, all guide-mode solutions are real,, while the Spurious mode solutions can be achieved merely by imposing the simple condition that guide-mode solutions be real. Two numerical examples, One for the rectangular waveguide case and the other for the hollow circular waveguide case are carried out.
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이해욱,김영수,이희송 大韓成形外科學會 1995 Archives of Plastic Surgery Vol.22 No.6
Thirty-eight patients with high-tension electrical burns managed in a 4-year period in the Department of Plastic and Reconstructive Surgery, Han-Il hospital were reviewed. The reviewed items were the sex, age, occupational and seasonal distribution, classification of the high-tension electrical burns, line of voltage, input and output, EKG findings on admission, distribution of % of TBSA and burn areas, amputation rate and sites, number of operation and reconstruction methods, distribution and rate of late complications and hospital days. Majority of patients were male electricians of 3rd and 4th decade, and frequently injured in spring and winter. Most patients were injured by direct electrical injury combined with are burn or thermal burn. Majority of the line of voltage at the time of injury were 22,900 volts. Most common input and output sites were hands and feet. Transient EKG abnormalities such as sinus tachycardia and sinus bradycardia were found in 4(9%) patients of all patients on admission. The extent of the burn was variable according to the type of injury, but most had burn area less than 40% of total body surface. Common burn areas were upper and lower extremities. Amputations were performed in 15(40%) patients and most common site of amputation was below the elbow. Most patients received several operations, and various flap techniques rather than skin grafting were more commonly required to manage the wounds. Late complications, not related to input, output, or surface burn, were noted in 19(50%) patients. Lower leg weakness due to spinal cord injury were noted in 10(53%) patients and cataracts were noted in 5(27%) patients and were common late complications.
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이해욱,김영수,이희송 大韓成形外科學會 1995 Archives of Plastic Surgery Vol.22 No.6
Eleven victims of high-tension electrical injury with necrosis of a portion of the skull and scalp were managed with soft tissue flap coverage without excision of necrotic skull. In eight instances, the flaps were from edjacent scalp after tissue expansion ; in two instances, free muscle flaps were used ; in the other an adjacent scalp without tissue expansion was used. All wounds healed without major problems except a small sequestration of bone in three cases. In all patients, necrosis of the calvarium was substantiated by evidence of nonperfusion on bone scan preoperatively. On follow-up bone scan, all instances showed evidence of regeneration of bone. This experience supports that devitalized calvarium following high-tension electrical injury need not be excised if adequate coverage is provided.
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제품 디자인 형상작업의 프로그램 융복합 활용에 관한 연구
이희송(Lee, Hui Song),김형준(Kim, Hyoung Jun) 한국전시산업융합연구원 2016 한국과학예술융합학회 Vol.26 No.-
디자이너와 엔지니어의 3차원 입체 형상작업 도구로 사용되고 있는 3D CAD 프로그램은 디자이너가 사용하는 3D CAD와 엔지니어가 사용하는 3D CAD로 분리되어 사용 되고 있어 제품 개발 과정에서의 3D 형상작업은 효율적이지 못하고, 디자이너와 엔지니어 간의 소통 문제가 있다. 본 연구는 2가지 프로그램의 융복합 활용을 연구하여, 제품 개발 과정에서의 3D 형상작업 효율성을 높이는 방안을 모색한다. 다양한 CAD프로그램 중에서, 디자이너의 사용 빈도가 높은 서페이스 기반 프로그램인 라이노(Rhino)와 실무엔지니어들의 접근성이 용이한 솔리드 기반 프로그램인 솔리드웍스(Solidworks)를 중심으로 한다. 연구방법으로 첫 번째, CAD와 CAID의 기본 개념을 파악하여 디자인과 설계과정에서 필요한 3D CAD의 역할을 분석하였다. 두 번째, 라이노와 솔리드웍스를 이용한 서페이스 형상화과정 비교와 형상 수정과정 비교 그리고 필렛 형상화과정 비교하였다. 분석을 바탕으로 서페이스 기반의 라이노와 솔리드 기반의 솔리드웍스 프로그램 기능을 파악하고 정량적인 분석으로 형상화 과정 분석을 통한 문제점을 제시한다. 분석 결과 서페이스 형상화과정에서 정량적 수치측면과 유기적 형상 모두 라이노가 유리하였다. 그러나 형상화 작업 후 추가적인 필렛 작업 및 수정 작업에서는 파라메트릭 구조의 솔리드웍스가 정량적인 부분과 완성도 측면에서 모두 유리하게 적용되었다. 그에 따라 특정 형태를 통한 실험을 가졌다. 우선 라이노를 활용하여 3차원 입체의 유기적 형상을 완성하고, STEP 파일 확장자로 저장한 뒤, 솔리드웍스의 호환성과 정확한 필렛의 장점을 활용하여 3D 형상을 완성하였다. 본 연구는 이와 같은 과정을 통해 제품개발 과정에서 라이노와 솔리드웍스의 융복합 이용으로 3차원 형상화 작업에 효율성을 제고 및 규명하였다. 하지만 3D CAD 프로그램에 들어가는 금전적 비용이나 실제 사용자를 통한 평가를 하지 못한 것이 본 논문의 한계점으로 평가 될 수 있다. 추후 연구는 가이드라인을 바탕으로 사용자 평가를 통한 객관적 자료가 필요하다고 보인다. 또한 본 연구를 통하여 제품디자인을 위한 프로그램 개발의 기초자료가 되길 기대한다. 3D CAD that is used by designers and engineers as a three dimensional shaping tool is divide into 3D CAD used by designers and 3D CAD used by engineers, so 3D shaping process in the product development process is not effective and there is communication problem between designers and engineers. This study examined the convergence use of the two programs and searches ways of raising effectiveness of 3D shaping in the product development process. Among various CAD programs, it focused on two programs, Rhino, a surface-based program that is frequently used by designers, and Solidworks, which is easily accessible for engineers. As for the study method, this study examined the basic concept of CAD and CAID and analyzed the role of 3D CAD that is necessary in the design and planning process. Second, using Rhino and Solidworks, it compared surface shaping process, correction process, and Fillet shaping process. Based on the analysis, this study examined the functions of Rhino, which is surface based, and Solidworks, which is solid based, analyzed the shaping process through quantitative analysis, and presented problems. The result of the analysis showed that in the surface shaping process, Rhino was better in both quantitative figure and organic shaping. However, in the additional Fillet and correction process that follow shaping process, Solidworks with parametric structure was advantageous in both quantitative aspect and the degree of completion. Accordingly, there was an experiment using a specific shape. First of all, a three dimensional organic shape was completed using Rhino, saved with the extension, STEP, and a 3D shape was made using the compatibility of Solidworks and accurateness of Fillet. Through this process, this study reviewed and tested the effectiveness of 3D shaping process using convergence use of Rhino and Solidworks. However, it had the limitations that it neither examined the cost spent for 3D CAD programs nor received review of real users. Following studies need to get objective reviews of users based on guidelines. Also, it is expected that this study will serve as base data to develop programs for product design.
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