http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤영묵,강낙헌,김태준 대한성형외과학회 2008 Archives of Plastic Surgery Vol.35 No.6
Purpose: Silicone gel sheet(SGS) is used for preventing and treating keloid or hypertrophic scars. Because the product is weak in tear strength and adherence, it requires several replacements, which requires high cost. As a solution for this problem, we developed a new silicone gel sheet, named as Scar Clinic, and confirmed its physical properties. Methods: Tensile strength, elongation rate, adhesiveness, and water vapor transmission rate were experimentally compared between the most commonly used SGS product and the Scar Clinic. Results: The newly developed SGS showed better results compared to the existed SGS in regards to tensile strength, elongation rate, adhesiveness, and water vapor transmission rate. Conclusion: The Scar Clinic showed higher durability and flexibility. It will be a useful product for treating scars clinically.
윤영묵,강낙헌,서광선 대한성형외과학회 2008 Archives of Plastic Surgery Vol.35 No.3
Purpose: Collagenoma is an intradermal harmatomatous collagen proliferation among connective tissue nevi of the skin. Although there are some reports of isolated collagenomas that occurred on the sole and the palm, collagenoms at the finger has not been reported in Korea.Methods: An 11-year-old girl presented with a growing mass on the distal interphalangeal joint of the left 5th finger. It was a skin-colored, oval and mild tender mass. There were no associated cutaneous or systemic abnormal findings.Results: The nodule, at the subcutaneous level on the distal phalanx, was completely removed by excision. Grossly it was covered with normal skin, and its surface was smooth having a definite margin with a size of 1.5 ×1.2cm. Histopathological examination, the epidermis showed to be normal, increased thickness of collagens arranged with a whirl formation was found in the dermis. No signs of cellular component increase were observed.Conclusion: Isolated collagenoma can be aroused as a solitary nodule in at any place of the body. We report a rare case of a female patient with an isolated finger collagenoma.
윤영묵 한국영화교육학회 2003 영화교육연구 Vol.5 No.-
Up to the 1980's, the film making process maintained the initial form without any change in the basics and the film making method was almost the same. Partial elements were changed and improved. Such changes were continued. For example, talking films emerged, the speed of filming were standardized to 24 frames per a second, the quality of screen was improved, and the camera lens became lighter. Technical development of creating a new image style also followed ceaselessly. However, the basic way that film makers used was not much different from the time the movie were invented. The development of the modern technology are remarkable in all areas. Particularly, emergence of the computer has made and is making the technology of all areas advance innovatively. Particularly, the change from the analogue age to the digital age has an enormous power to replace everything digitally. This general trend has been accelerated more and more to diversify the media, to increase the information network, and to establish new markets and new types of media. Digital film making is a new type of film making that integrates digital image processing, screen storage in the hard disk, new film making method using the computer such as the computer communication, and parts of existing film making technology. The effects that the digital technology had on the artistic and technical areas of film making was not an abrupt change but an expected result. Generally, when a new method is introduced, only after the elements that constitute the method become diversified fully, users can revaluate which point of the whole organization each element is placed in by seeing the whole organization. Similarly, in the method of digital film making, an exact phase of each element will be changed according to the development of technology. Digital technology introduced into film making will change the film making technique innovatively and change the existing concepts. Particularly, the computer and the software are used in various processes of film making and the computer has already transformed a writer' s endless imagination into real images. Film images that are converted into digital bits and stored in the computer can get a new type if they encounter a creative maker. Digital technology can process them effectively than any other conventional methods. Particularly, among digital film making methods, digital nonlinear editing system for the latter works has many merits.
유한요소법 및 유사 3 차원 스트릿-타이 모델 방법을 이용한 PSC 박스거더 정착부의 해석
윤영묵,김승억,오진우,박정웅,Yun, Young-Mook,Kim, Seung-Eock,Oh, Jin-Woo,Park, Jung-Woong 한국구조물진단유지관리공학회 2000 한국구조물진단유지관리공학회 논문집 Vol.4 No.2
This study evaluates the behavior and strength of an anchorage zone of the prestressed concrete box girder bridge on the Kyungboo highway railroad using the 2D SUB-3D STM approach and a linear elastic finite element analysis. The 2D SUB-3D STM approach utilizes several two-dimensional sub strut-tie models that represent the compressive and tensile stress flows of each projected plane of the three-dimensional structural concrete in the selection of a three dimensional strut-tie model, evaluation of the effective strengths of the concrete struts, and verification of the geometric compatibility condition and bearing capacity of the critical nodal zones in the selected three-dimensional strut-tie model. The finite element analysis uses an 8-node brick element and the longitudinal prestressing force is considered as the equivalent nodal force. Analysis results show that the 2D SUB-3D STM approach and linear elastic finite element method can be effectively applied to the analysis and design of three-dimensional structural concrete including a prestressed concrete box girder anchorage zone.
피부 감염을 일으키는 진균에 대한 정로환^�과 식초의 시험관내 항진균 효과
윤영묵,김상원,김동석 대한의진균학회 1998 대한의진균학회지 Vol.3 No.2
Background: Even though recent improvement of antifungal agent is remarkable, side effect makes patient hesitate to use them. Instead, mixture of Jungrowhan?? and vinegar is traditionally used and it makes contact dermatitis and secondary bacterial infection. Objective: We tested antifungal activity of vinegar and Jungrowhan?? to know their its efficacy. Method: Candida albicans (CA), Trichophyton rubrum (TR, Trichophyton mentagrophytes (TM were cultivated in Sabouraud dextrose agar admixed with various amounts of Jungrowhan?? And vinegar. We used the standard checkerboard titration for detecting synergy or antagonism of these two materials. Using the individual ingredients of Jungrowhan??, sensitivity tests were done. Results: Minimum inhibitory concentrations (MICs) of Jungrowhan??, were 6~8mg/ml in CA, 2mg/ml in TR and 2~4mg/m1 in TM. MICs of vinegar were 0.05~O.2ml/ml in CA, 0.02~0.03ml/ml in TR and 0.01~O.02ml/ml in TM. The checkerboard titration of two materials revealed no synergism. MIC of creosote, one of ingredients of Jungrowhan??, was the same of Jungrowhan??, and the others revealed no antifungal effect. Conclusions: Even though Jungrowhan?? and vinegar showed antifungal activity, using mixture of two material revealed no synergism. Their antifungal activity does not come from its herbal ingredients but just from creosote which is a kind of phenol mixture used for antiseptics, and acid of vinegar.
Strut-tie model evaluation of behavior and strength of pre-tensioned concrete deep beams
윤영묵 한국계산역학회 2005 Computers and Concrete, An International Journal Vol.2 No.4
To date, many studies have been conducted for the analysis and design of reinforced concrete members with disturbed regions. However, prestressed concrete deep beams have not been the subject of many investigations. This paper presents an evaluation of the behavior and strength of three pre-tensioned concrete deep beams failed by shear and bond slip of prestressing strands using a nonlinear strut-tie model approach. In this approach, effective prestressing forces represented by equivalent external loads are gradually introduced along strand's transfer length in the nearest strut-tie model joints, the friction at the interface of main diagonal shear cracks is modeled by the aggregate interlock struts along the direction of the cracks in strut-tie model, and an algorithm considering the effect of bond slip of prestressing strands in the strut-tie model analysis and design of pre-tensioned concrete members is implemented. Through the strut-tie model analysis of pre-tensioned concrete deep beams, the nonlinear strut-tie model approach proved to present effective solutions for predicting the essential aspects of the behavior and strength of pre-tensioned concrete deep beams. The nonlinear strut-tie model approach is capable of predicting the strength and failure modes of pre-tensioned concrete deep beams including the anchorage failure of prestressing strands and, accordingly, can be employed in the practical and precise design of pre-tensioned concrete deep beams.
윤영묵,박문호,Yun, Young Muk,Park, Moon Ho Korean Society of Civil Engeneers 1992 대한토목학회논문집 Vol.12 No.3
매우 큰 기하학적 변화를 나타낼 수 있는 비선형 유한요소의 정식화 과정을 나타내었다. 유한요소의 구성은 변화되는 재료의 기준 물성치에 근거를 두고 형성하였으므로 매우 큰 변형을 받는 재료의 특성들을 진응력 변형율 시험에 정확히 직접 적용할 수 있도록 하였다. 큰 변형 문제에 대하여 연속체 역학적인 접근방법으로 일관된 공식을 유도하였다. 운동학적인 문제는 변화되는 재료의 물성 기준치가 더욱 더 요구되므로, 물체 평형 방정식을 변화되는 기하학적 좌표로서 또한 형성하였으며, 이에 2차 Piola-Kirchhoff 응력과 변화되는 Largrangian 변형을 텐서들이 사용되었다. 수치해는 명확한 증분적인 수치과정으로 유도하였으며, 수치해의 증명을 위하여 뼈대구조와 평면구조들의 매우 큰 변형에 대한 예제들을 해석하였다. 또한 적절히 취급되는 재료 특성에 대한 중요성을 논증하였다. A nonlinear finite element formulation which has the capability of handling very large geometrical changes is presented. The formulation is based on an updated material reference frame and hence true stress-strain test can be directly applied to properly characterize properties of materials which are subjected to very large deformation. For the large deformation, a consistent formulation based on the continuum mechanics approach is derived. The kinematics is referred to an updated material frame. Body equilibrium is also established in an updated geometry and the second Piola-Kirchhoff stress and the updated Lagrangian strain tensor are used in the formulation. Numerical examples for very large deformation of framed structures and plane solids are analyzed for verification purposes. The numerical solutions are obtained by an incremental numerical procedure. The importance of handing material properties properly is also demonstrated.