信號交叉路의 交通特性과 左回轉 禁止에 따른 運營效果에 관한 硏究

홍익상,공창환,정우영,임채문 대구대학교 산업기술연구소 1993 産業技術硏究 Vol.12 No.-

This study analyzed the characteristics of the operation of left turns at intersections of the streets in Taegu City. The points of the study were as follows: increase of traffic capacity, decrease of delay time, and to do so this study aims at seeking a way for the most appropriate signal cycle and an effective way to operate intersections. The following are the results: 1st The arterials of Taegu City have a high rate of left turns, and yet are not divided into specific functions, which impairs the efficient use of the functions. It is required that a study be made on the way of utilizing the left turn to the maximum of the operational functions of signalized intersections. 2nd As traffic volume and left turn ratio increase, it was revealed that the optimum signal cycle and delay increased, adoption of efficient lanes was analysed to be most effective at the intersection which have a great of traffic volume and a high or rate of left turns. 3rd On the independent intersection in Taegu city, when left turn is prohibited, it may give poor approaches, but according to analyses this will bring a phenomenal decrease in the optimum signal cycle and delay.

황정(黃精) 추출물의 화학구조결정에 관한 연구 (Ⅰ)

윤중호,박주희,김정주,권기락,안철진,주우홍,강진호,신동수 Institute of Genetic Engineering Changwon National 1998 Gene and Protein Vol.2 No.1

본 연구에서는 황정 속에 포함되어 있는 생리활성 물질을 hexane, CHCl₃과 n-butanol층에서 각각의 성분들을 추출하였고, hexane층에서 분리된 화합물 I과 H 중에서, 화합물 I의 봐학구조를 ¹H-nmr, ??, DEPT135, COSY, HMQC, HMBC 스펙트럼 및 MS 스펙트럼 등의 분광학적인 방법에 의해 결정하였다. 화합물 I의 구조는 9,12-(9E, 12E)-octadecadienoic acid 임을 확인하였다. In this Paper, biologically active compounds were extracted using organic solvents as hexane. CHC1₃, n-butanol to give each component. Chemical structure of compound I was characterized using ¹H-nmr, ??, DEPT135, COSY, HMQC, HMBC spectrum and MS-spectrum, in separated compound I and Ⅱ from hexane layer. Finally, chemical structure of compound I was determined as 9,12-(9E,12E)-octadecadienoic acid.

탄성지반 강성행렬을 이용한 암거해석

김우중,이원홍,하대환 진주산업대학교 1994 論文集 Vol.33 No.-

Culvert is sometimes placed on elastic foundation at construction site. There are several methods to analyze a culvert, particularly finite element method used commonly. The stiffness matrix of finite element method does not include the character of the elastic foundation. When the elastic foundation stiffness matrix, which will be introduced in this study, add to the stiffness matrix, the combined matrix can be applicable to the bottom part of the culvert on elastic foundation. That could analyze the actual condition of the culvert, also predict the elastic displacements of the culvert.

산국 (Chrysanthemum boreale) 휘발성 추출액의 항균 및 항진균활성

차정단,김태영,우원홍,정규용,김강주,길봉섭 원광대학교 생체재료·매식연구소 1999 원광생체재료·매식 Vol.8 No.1

To investigate the antimicrobial and antifungal activity of Chrysanthemum boreale(C. boreale) essential oil, the growth inhibition against Aspergillus nidulans, Fusarium oxysporum, Alternaria mali, Staphylococcus aureus, Streotococcus pyogenes, Streptococcus mutans and Escherichia coli in the presence of the essental oil was monitored by agar dilution method. The antifungal effect of C. boreale on Aspergillus nidulans, Fusarium oxysporum and Alternaria mali as affected at the concentration of 400 ppm. The antibacterial effect of C. boreale on staphylococcus aureus, streptococcus pyogenes and Streptococcus mutans was affected at the concentration of 0.4 μl, while growth of E. coli was not inhibited at the concentration of essential oil. The results of this experiment on microorganisms indicated that naturally occuring chemical substances from C. boreale might have biologically toxic activities, that is, allelopathic potentials to the microorganisms.

전단달변형을 고려한 단순지지된 비등방성 적층곡선판의 해석

김우중,이원홍 진주산업대학교 1993 論文集 Vol.32 No.-

In recent years the development of high modulus, high strength and low density boron and graphite fibers bonded together has brought a renewed interest in structural elements fabricated of layers, each layer possessing different mechanicla properties. Particularly laminaed composite plates exhibit properties considerably different from those of the single-layer plate. It results in the fact that the classical theory of plates, based on neglecting transverse shear deformation, is invalid for laminated composite plates. Thus, to obtain the more exact behavior of laminated composite plates, effects of shear strain should be considered in the analysis of them. This paper is composed of linear analysis of laminated composite plates that accout for the transverse shear strains. Some methods of analysis of generally anisotropic laminated composite curved plates with the effects of transverse shear deformation are given. The finite difference technique is used to analyze laminated composite curved plates in geometrical nonlinear problem as well as linear problem. Forward and backward finite difference at boundaries are used to exclude the pivotal points involved in each equation. Then this technique of analysis is shown reasonable results. From the numerical results, it is clarified that the effects of transverse shear strain is quite significant components for small ratio of side length ot thickness. Therefore when the more exact solution is required in the analysis of laminated composite plate, the present analytical technique in this study is used to obtain the more exact and the more rapid soution of them as some examples shown in this study.

산국 (Chrysanthemum boreale) 휘발성 추출액 및 EDTA가 미생물 및 인체 치은 섬유아세포에 미치는 영향

차정단,김태영,우원홍,전병훈,김해경,유용욱,김강주,길봉섭 원광대학교 생체재료·매식연구소 2000 원광생체재료·매식 Vol.9 No.1

Chrysanthemum boreale (C. boreale) has been used for the treatment of furuncles, carbuncles, sores, conjunctivitis, headache, vertigo and swollen throats as a folk medicine in Korea, but there is little report about experiment evidence of antimicrobial activity. To investigate the antifungal and antibacterial activity of Chrysanthemum boreale(C. boreale) volatile substance and EDTA, the growth inhibition against Aspergillus nidulans (A. nidulans), Fusarium oxysporum (F. oxysporum), Alternaria mali(Al. mali), Candida albicans (C. albicans), staphylococcus aureus (S. aureus), Streptococcus pyogenes(S. pyogenes), streptococcus mutans (S. mutans), Escherichia coli(E. coli), Helicobacter pylori (H. pylori) and Porphyromonas gingivalis (P. gingivalis) was monitored by agar dilution and broth microdilution method. The antifungal effect of C. boreale on A. nidulans, F. oxysporum, Al. mali and C. albicans was shown at the concentration of 0.04%. The antibaterial effect of C. boreale on S. aureus, S. pyogenes, S. mutans and H. pylori was shown at the concentration of 0.04%. However, the growth was inhibited at the concentration of 0.04% irrespective of the presence of EDTA 0.125% was much higher than higher than that of several concentration of volatile substance. The minimum inhibitory concentrations of volatile substance were 0.16% against S. aureus, 0.04% against S. pyogenes, 0.02% against S. mutans, 0.40% against E. coli, and 0.18% against C. albicans. The growth of human gingival fibroblasts was not affected by C. boreale volatile substances at the concentration of 0.04%. These results indicate that volatile substance from C. boreale may have biologically toxic activities to the microorganisms.

여행속도에 따른 Q-V관계식 산정에 관한 연구

임채문,정우영,공창환,홍익상 대구대학교 과학기술연구소 1995 科學技術硏究 Vol.2 No.1

The purpose of this study is to estimate a suitable traveling speed model based on using the traffic data collected by test-vehicle traveling method and the data on road geometric and operating characteristics. The conclusions of this study are as follows. In travel speed model(Q-V), regression model (V=9.635+0.0169L - 0.00045Q - 2.1926N, R²=0.76) the important independent variables are speed is closely related with distance, traffic volume and the number of traffic lane, form the result of speed-flow regression analysis, link travel speeds are influenced by link distance, traffic volume, and the number of lanes. As expectedly by the most significant factor influencing link travel speeds. The changing of traveling speed according to section distance is appeared large. According to the result of analysis of travel speed and traffic density model(Q-K), as according the that density increases the travel speed is decreases, on the other hand travel speed increases, the density decreases. The speed equation (u=68.72e^(-k/22.6)) is derived by form the Q-K relationships founded form the study, traffic volume increases as traffic speed increase up to the critical traffic density. If traffic volume decreases when traffic density is abduce the critical traffic density. Using Q-V equation estimated by regression analysis and Q-K equation estimated by density, Traffic value test was accomplished by computer program(TRANPLAN). There were difference between too test, however, the deviation was small. On case of using program, the application extent we considered, is between 25Km/h - 60Km/h. Traffic volumes obtained from TRANPLAN are governably 10% larger than traffic volume estimated form Q-K model. However the difference of the critical traffic density bow Q-K model and TRANPLAN, are relatively small. It is desirable to reduce traffic volume by 0.7∼9% over all, speed range when TRAPLAN is applied in Q-K relationship.

근로자 건강증진전략을 위한 행동변화에 대한 요구도 평가

이강숙,임현우,구정완,홍현숙,이정민,이원철,박정일,맹광호,M, O'Donnel 大韓産業醫學會 1999 대한직업환경의학회지 Vol.11 No.4

Objectives : In order to evaluate the stage of behavior change for health promotion strategy in workplace Methods : Questionnaire survey was carried out for 309 workers who employed in H Electronics company in Kyong-in area from September to October 1998. Results : According to need assessment of four step such as precontemplation stage, contemplation stage, action stage, maintenance stage which were to change of behavior for health promotion, the percent for quitting smoking were observed 48.8%, 43.1%, 8.1%, 0%, and for the restriction of drinking were 29.8%, 10.6%, 9.3%, 5.3%; for fitness 11.1%, 31.0%, 37.3%, 20.6% in male 26.6%, 27.8%, 26.6%, 19.0% in female, for regular diet 26.1%, 19.8%, 38.7%, 15.3% in male, 27.8%, 22.2%, 40.0%, 10.0% in female and for stress management 5.8%, 10.6%, 8.7%, 75.0% in male, 13.6%, 22.7%, 19.7%, 44.0% in female. In heavy smoker(p=0.017) and heavy drinker,(p=0.021) the percent of precontemplation stage was significantly higher than in lower drinker and light smoker. Conclusions : This study suggested that company support for health promotion in workplace was and workers of high risk group for smoking and drinking were in precontemplation stage. So before conducting the health promotion program, health risk appraisal and need assessment for stage of behavior change should be taken for the efficient health promotion strategy.

Further understanding of fat biology: Lessons from a fat fly

Hong, Joung-Woo,Park, Kye Won Springer Science and Business Media LLC 2010 Experimental and molecular medicine Vol.42 No.1

Multiple Binding Motifs of RISBZ1, Seed Specific Transcription Factor

Joung Sug Kim,Young Jin Woo,Mee Yeon Hong,Yeon-Ki Kim,Baek Hie Nahm 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07

The surveying of binding affinity between a particular transcription factor and DNA motifs is important in order to understand the developmental specific gene expression and regulatory networks of an organism. The microarray-based technologies (protein-binding microarrays; PBMs) provide useful predictions for understanding the transcriptional regulatory code in a genome-wide manner. The PBM was designed in such a way that target probes were synthesized as quadruples of all possible 9-mer combinations, named Q9-UPBM. Also, we developed rice promoter PBM (RPBM) using 19,480 rice promoter sequences containing 40 bp long probe with overlapping 20 bp (cover 1kb from 5’ upstream). We applied RISBZ1 protein, an endosperm specific basic leucine zipper transcription factor, to compare binding site specificities between Q9-UPBM and RPBM and find directly regulated promoter regions through the RPBM. Several cis-elements; Prolamin box (TGTAAAG), GCN4 motif (TGA(G/C)TCA), AACA motif (AACAAAA), and ACGT motif, are highly conserved in the promoters of cereal seed storage protein genes, and play a central role in controlling endosperm specific expression during seed maturation. Characterization of cis-elements and TFs has been performed on many storage protein genes of several crop plants, but the mechanisms are still poorly understood. Two chips provide RISBZ1 could bind to ACGT motif such as a CCACGTCA site and GGATGAC site as well as GCN4 motif known binding site. In RPBM binding affinity to CCACGTCA was highly significant, compared to GGATGAC site. The difference might be caused by the biased presence of specific promoter rather than Q9-UPBM. Also our results will provide direct insight into the importance of combinatorial interplay between cis-elements in regulating the expression of seed storage protein genes.