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노희일,문태섭,이리형 대한건축학회 1984 建築 Vol.28 No.5
강구조에서 강주의 탄소성 거동을 연구하는 것은 강구조물의 안전성 검토에서 뿐만 아니라 소성설계에서도 매우 중요하다. 그러나 대부분의 강주가 편심축압을 받고 있으나 이 방면의 연구 논문이 거의 없는 실정이다. 즉 가등. 추산은 현실적인 - 관계에서 변형경화현상을 고려한 중심압축을 받는 강단주의 거동에 대하여 이론해석법을 제시하였으며 이 이론해소 결과가 실험결과와 좋은 대응을 보여주고 있으나 편심축압을 받는 강주에 대한 실험적 연구 및 해석적인 연구는 아직 없기에 전호에서 실험적 연구를 하여 내력과 변형성상을 구명하였으며 본호에서는 이론해석을 하여 그 결과를 실험결과와 비교분석하였다.
노희일,권기혁,곽윤근,신종렬,권우현 대한건축학회 1996 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.16 No.1
Recent advances in material technology has accelerated the development of higher strength concretes using lightweight manufactured aggregates. Concretes with these characteristics are designable since the reduction of dead leads and the increase in goad capacity can offer substantial cost reductions. In this study, eight single reinforced high strength lightweight concrete beams were tested to investigate their behavior and to determine their ultimate shear strengths. The variables studied in this investigation are shear agan to effective depth ratio a/d = 1.5. 2.5 3.5 and 4.5; vertical shear ; reinforcement ratio p_s = 0% and 1.136%
노희일,문태섭 서울市立大學校 1986 論文集 Vol.20 No.1
This paper is an experimental and analytical report for a study on the strength and deformation of steel long columns subjected to axial force. For the analysis of the strength and deformation behavior with strain hardening phenomenon of steel long columns subjected to axial force, the steel columns were tested under the constant central load, and an analytical method was adapted. The analytical results of equilibrium of force used for the strength evaluation by means of the actual stress-strain relationship were compared with the test results. The specimens weer made from ss41 grade steel and were composed of three kinds of H-shape, Box-shape and Pipe-shape, and the slenderness ratios of each series are 60, 80, 100, and 120. The results are as follows : 1. The predicted values of the yeild and maximum strength meets the test reaults satisfactorily. 2. The analytical results about the assumed strain distribution and load-deformation relationships corresponds to the test results satisfactorily. 3. The theoretical results analysed by Paris plastic hinge method shows good correspondence to the test results in accordance with the increase of the slenderness ratio. 4. All of the specimen increased in strengths in some extent after the buckling occurred; of which maximum strength was determined by the local buckling. Thereafter the bearing strength decreased by the local buckling at the midheight. 5. The strain distribution after the buckling of each specimen remained in plastic throughout the compressive and tensile fibers.
盧熙逸 서울市立大學校 1991 論文集 Vol.25 No.-
This paper describes GUI(Graphic User Interface) for reinforced concrete beam and column members using AutoLISP language is the most useful language for GUI and making Expert System. An Expert System is a computer-based system that uses knowledge, face and reasoning techniques to solve problems that normally require the abilites of human experts. Menu of AutoCAD is useful method that make GUI and it is use with AutoLISP.
The Change of Salivary Flow Rate according to Olfactory Stimulation
노희,임영관,김병국 대한안면통증∙구강내과학회 2017 Journal of Oral Medicine and Pain Vol.42 No.3
Purpose: The purpose of this study was to examine the rate of salivation before and after olfactory stimulation using BPO (black pepper oil) and then, to collect basic data for screening the possibility of introducing olfactory stimulus to prevent and improve dry mouth. Methods: The subjects in this study were 60 college students in Jeon-Nam province. The subjects were randomly divided into 3 groups; the BPO group (n=20), the lavender oil (LVO) group (n=20), and the distilled water (DW) group (n=20). The amount of whole saliva before and after olfactory stimulation was measured 14 times for a 4-week period. Results: In the BPO and LVO groups, the amount of whole saliva increased after the olfactory stimulation and it was most prominent in the BPO group (p<0.05). The difference of whole salivation was higher in the BPO group (p<0.05) and there was no significant difference in the salivary flow rate in the DW group. After 14 times of measurement for 4 weeks, the BPO and LVO groups showed an increase in salivary rate at an early stage compared without stimulation (p<0.05), but there was no significant difference between the 2 groups in the middle. Since the twelfth measurement, whole saliva secretion increased and maintained the elevated level (p<0.05). Conclusions: The olfactory stimulation using BPO may contribute to stimulating salivation. Further studies are needed for subjects with dry mouth symptoms. In the future, qualitative and quantitative studies should be conducted for people who complains about oral dryness.