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Headed Reinforcement를 사용한 철근콘크리트 깊은 보의 전단거동
강경훈,이우진,김수봉,서수연,윤승조,김성수 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
Generally, headed reinforcement offers several advantages over straight bar or hooked bar anchorages to develop reinforcement in concrete members. The purpose of this study is to investigate the shear behaviors of reinforced concrete deep beam with headed reinforcement. Five deep beam specimens are designed to study the anchorage capacity of headed reinforcement as well as the contribution of H-bar and V-bar to the shear. Two anchorage types, standard 90-degree anchorage and headed reinforcement, are considered in design. From the tests, it is shown that In the test results, headed reinforcement is able to replace standard 90-degree anchorage as the anchorage method. The evaluation on the contribution of H-bar and V-bar in current design code for deep beam shows that the former is overestimated 75% and the latter is overestimated 17%.
하태선,이태수,차은종,박범수,한헌석,채수일 충북대학교 의과대학 충북대학교 의학연구소 1993 忠北醫大學術誌 Vol.3 No.1
본원 소아과 입원환자의 퇴원요약 기록을 전산관리하는 시스템을 개발하였다. 소아과 환자관리에 적합하도록 퇴원요약지를 설계하였고 개인용 컴퓨터를 사용하여 관리하도록 구성하였다. 주 기억장치 4MB와 보조기억 장치 120MB HDD을 장착한 PC-386DX 시스템을 기반으로 개발하였고 소프트웨어로는 FoxPro v2.0을 사용하였다. pull-down menu 방식과 window방식을 적용하여 비전문가라 할지라도 손쉽게 사용할수 있도록 하였고 정보입력 및 수정시 사용자 편의를 최대한 반영하고자 하였다. "AND"와 "OR"연산자를 사용하여 다양한 검색이 가능하였다. 본 시스템은 현재 본원 소아과에서 실무에 적용하고 있으며 향후 통계분석과 임상연구에 크게 활용할 수 있으리라 생각된다. A PC-based system was developded to manage discharge summary records of pediatric patients. It is based on a PC-386DX system equipped with 4MB memory and 120MB HDD, and its software was written in FOXPRO V2.0. Any users unfamiliar with computer can make an easy access to the data through pull-down menu and windows system. Logical operators of "AND" and/or "OR" enabled a flexible and various search conditions. The present system is being under clinical use in the Department of Pediatrics, and warrants future applications to statistical analysis as well as clinical research projects.
3차 상태 방정식들에 의한 Co₂-Tetralin계 및 CO₂-α-Tetralone계에 대한 상평형 해석
변헌수,박인수,곽철 경남대학교 신소재연구소 1994 論文集 Vol.4 No.-
Tetralin과 이산화탄소 그리고 α-tetralone과 이산화탄소의 이성분계들에 대해 3차 상태방정식인 Redlich-Kwong식, Soave-Redlich-Kwong식 그리고 Peng-Robinson식을 사용하여 기액평형 값을 예측하였다. 추산된 값과 실험값을 비교, 검토한 결과 Peng-Robinson 상태방정식이 다른 방정식에 비해 좋은 접근을 보였다. 또한 이때의 이성분계의 최적 상호작용 파라미터를 온도의 함수로 나타내었다. The vapor-liquid phase equilibria of tetralin and a-tetralone with carbon dioxide were predicted to take advantage of Redlich-Kwong equation, Soave-Redlich-Kwong equation and Peng-Robinson equation in cubic equation of states. The results from comparison predicted values with experimental values have shown that Peng-Robinson equation have better approach than other equations. Also, the optimum interaction parameters kij of the binary systems were presented as the function of temperature.
시멘트에 대한 유변학적 상태방정식의 응용성에 관한 연구
변헌수,조형찬 여수대학교 1998 論文集 Vol.12 No.2
In this study, using of experimental data, we are applied in rheological equation of state. The calculate result obtained in the range of this study are as such the following: 1. If the steady-state shear viscosity(η) is a state function, presented in rheological equation of state by exact differential equation. 2. We have obtained the each parameter of the rheological equation of state using experimental data. 3. The mean error of the calculated values and experimental values was of less than about 2% with each other J and D. 4. However, we have obtained rheological equation of state from state funciton. ??
조수묵,유승헌,신관철 충남대학교 생물공학연구소 1997 생물공학연구지 Vol.5 No.-
목재부후성 담자균류의 배양 균사체의 생물활성을 조사하기 위하여 항균활성, 식물생장조절활성, 항암활성 및 그들이 생산하는 효소활성을 검정한 결과 Coriolus versicolor 5129와 C. pubescens 5131 균주는 그람양성세균에, Lenzites betulina 8029 균주는 그람음성세균에 저지 효과를 나타내었으며 L. betulina 8085 균주는 세균과 진균에 저지 효과를 나타내어 광범위한 항균 spectrum을 보였다. 대부분의 균주가 0.8㎖/㎖ 농도 처리시 배추 및 무의 발아 및 생장을 억제하였으며, 특히 Fomitopsis pinicolor 8059와 Fomitella fraxinea 8084 균주의 경우 생육을 강하게 억제하였다. 그러나, Bjerkandera adusta 8054 균주는 0.4 및 0.2 ㎖/㎖ 농도에서 배추 및 무의 생육을 촉진하였다. 몇종의 목재부후균 다당체를 추출하여 암세포를 이식한 ICR mouse에 투여한 결과 거의 전 균주가 항종양 작용을 나타내었으나 버섯종류 간에 큰 차이를 보였고 그중 L. betulina 8029와 미분류된 8058 균주는 효과가 비교적 높았다. 목재부후균의 세룰로스와 리그닌 분해력은 거의 전 공시균주에서 나타났고 종류간에 역가가 다양하여 강력한 분해균의 선발 가능성을 보였다. For screening of biological activities of culture broth of some wood rotting basidiomycetes, antimicrobial activity, plant growth regulating activity, antitumor activity, and various enzyme activities were checked. Coriolus versicolor 5129 and C. pubescens 5131 strains showed inhibition activity against gram-positive bacteria and Lenzites betulina 8029 strain showed the activity against gram-negative bacteria. L. betulina 8085 inhibited the growth of both bacteria and plant pathogenic fungi. All of tested basidiomycetes inhibited the germination and growth of radish and cabbage at concentration of 0.8 ㎖/㎖. Especially, Fomitopsis pinicolor 8059 and Fomitella fraxinea 8084 showed strong inhibition activity. In contrast, Bjerkandera adusta 8054 stimulated the growth of cabbage and radish at concentration of 0.4 and 0.2 ㎖/㎖. All polysaccharides from tested basidiomycetes showed anti-tumor activity against sarcoma 180 and the stronger antitumor activity was observed in L. betulina 8029 and unidentified 8058 strain. All tested basidiomycetes had also an ability to degrade cellulose and lignin.
김헌수 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3
The purpose of the study was to analyze a kinematic of a flat service in the soft tennis using 3D motion analyzer. The forward subjects of the study were 4 males(26.5 ±1.73yrs.) whose had a technique of high level. The results were as following : 1. The longest racket swinging time was in the phase of takeback, the second one was in follow-through. The shortest one was in the phase of forward-swing so called force production section, which had an influence on ball's velocity. 2. The racket speed on impact was 16.3m/s in a forward subjects, when a velocity of balls was 44.6m/s. 3. The maximum speed of each segments were reached before the impact. The summation of force in a velocity was measured in good order as following; hip, shoulder, elbow, wrist, top of racket. 4. In angular velocity of all examine except one, the angular velocity of forearm was bigger than the one of racket top. This result explained that the accuracy is more important factor than the power in a flat service of the soft tennis.