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초음파 시험법에 의한 실존 콘크리트 구조체의 압축강도 추정식에 관한 연구
권영웅,유재은,신정식 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
This study concerns the new strength equation of concrete by ultrasonic pulse velocity test. There are not only few estimate strength equations of concrete by nondestructive test, but also many problems to apply them because of time, cost, easiness, structural damage, reliability and so on. For this study, there performed a series of test and proposed a equation as follows ; Linear : fck = 70.57Vp - 222.9, r²=91.3% Quadratic : fck = 19.868Vp² - 76.6Vp + 48.1, r²=91.7% here, fc estimated compressive strength of concrete by MPa Vp : Ultrasonic Pulse Velocity of concrete by km/sec.
YBa₂(Cu_(1-x)Fe_(x))₃O_(9-y)계의 초전도성과 Mossbauer 효과
申榮男,金在慶,조현웅 大邱大學校附設 基礎科學硏究所 1990 基礎科學硏究 Vol.7 No.-
YBa₂(Cu_(1-x)Fe_(x))₃O_(9-y) superconductors are prepared and their physical characteristics are investigated by measuring the resistivity, X-ray diffraction pattens and Mossbauer spectra. At x=0.03, the crystal structure is transformed from orthorhombic to tetragonal system. Transition temperatures are not changed in the orthorhombic region, but linealy decreased with increasing x in the tetragonal region (80K at x=0.03 and 30K at x=0.1). The Mossbauer spectra are fitted to Lorentzian line shapes with two quadrupole doublets. Two main doublets and lattice parameters indicate that the valancy of Fe is +3. F2 site has typical square-pyramid coordination and F1 site has highly atypical (for Fe^(3+)) coorination of square-planar.
김영애,성민웅 한국과학교육학회 2003 한국과학교육학회지 Vol.23 No.1
7차 국민공통기본교육과정 10학년 과학 6종 교과서에 나오는 기본, 보충, 심화과정의 탐구상황요소 분석 결과 전체적으로 순수 과학적 상황이 가장 높게 나타났고, 기본과정에서 탐구상황요소들의 종류와 빈도가 보충, 심화과정보다 높게 나타났다. 이는 과학교과서 내용의 기본 개념이 순수 과학적인 것이 많았기 때문으로 해석할 수 있었다. 과학교육의 목표인 과학이 기술의 발달과 사회의 발전에 미치는 영향을 인식한다는 취지에 따른다면 순수 과학적 상황과 일상적 상황이 높은 빈도를 나타냈으나 기술 산업적 상황과 사회적 상황이 낮은 빈도를 나타내었기 때문에 심화 보충학습시에 사회적 상황과 기술 산업적 상황에 해당하는 자료를 활용하여 과학교육 목표달성에 도움이 되는 학습지도가 요망된다. The present study was carried out to analyse the frequency(%) for five kinds of inquiry context elements for six kinds of the high school science textbooks in the 7th curriculum. All the elements was classified into three process achievement level such as the basic, supplementary and further level introduced firstly in the 7th curriculum. Five elements of the inquiry context categories appeared as pure scientific context(61.8%), everyday context(22.2%), natural environmental context(7.7%), techno-industrial context(5.9%), and social context(2.4%) in the basic, supplementary and further level. Social context wasn't appeared in the supplementary level. In five elements of inquiry context, total elements appeared 7,139(85.5%) kfrequencies in the basic level and 691(8.1%) frequencies in the further level. However total elements appeared 529(6.4%) frequencies in the supplementary level. The kinds and frequencies of the elements for the inquiry context suggested in the basic level were more than those in the supplementary and in the further level. The social context was not appeared in the supplementary level. However five inquiry context elements were all appeared in the basic and further level.
鄭宇珪,孫玲杰,成敏雄,金鼎錫 慶尙大學校 기초과학연구소 1992 基礎科學硏究所報 Vol.8 No.-
In this study the relationship among Juniperus chinensis and its seven varieties-J. chinensis var. procumbens, J. chinensis var. horizontalis, J. chinensis var sargentii, J. chinensis var, kaizuka, J. chinensis var. aureo-variegata, J. chinensis var. globosa, J. chinensis var. aureo-globosa-and J. rigida was studied by using the karyological methods. The results obtained from this study were as follows : In the karyotype analysis, J. chinensis, J. chinensis var. horizontalis, J. chinensis var. sargentii, J. chinensis var. globosa, J. chinensis var. aureo-globosa, and J. rigida were diploid with 2n=22, although J. chinensis var. procumbens, J. chinensis var. kaizuka and J. chinensis var. aureo-variegata were tetraploid with 2n=44. According to descending order of the total length of the chromosomes and the length of short and long arms, from the arrangement order of chromosomes and the position of centromeres, J. chinensis var. procumbens and J. chinensis var. horizontalis were categorized into the first group J. chinensis var. kaizuka and J. chinensis var. aureo-variegata were into the second group, and J. chinensis var, globosa and J. chinensis var. aureo-globosa were into the third group, respectively. Aneuploid(2n=26) in the C-band staining of J. chinensis var. aureo-variegata was identified, although it normally showed 2n=44 as karyotype. Because light was emitted from all chromatids of the samples by fluorescent light staining with DAPI, A-T rich regions would be located all over the chromatids.
관입시험법에 의한 콘크리트 압축강도 추정식의 제안에 관한 연구
신정식,이성용,권영웅 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
This study concerns the new strength equation of concrete by penetration test. There are not only few estimate strength equations of concrete, but also many problems to apply them because of time, cost, easiness, structural damage, reliability and so on. For this study, there performed a series of test and proposed a equation as follows; fc = 1670 - 106d + 1.81d² here, fc : estimated compressive strength of concrete by kgf/cm² d : Probe exposed of concrete by mm.
박히준,채윤병,차웅석,박종배,이혜정,이향숙,인창식,고형균,김수영,최일환,김강식,문정배,배기태,유경환,육근영,정병주,손인철,임사비나 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2004 東西醫學硏究所 論文集 Vol.2004 No.-
Background : The cun measurement System, an essential and convenient method in locating acupoints, has been widely used in the practice of acupuncture. However, traditional cun measurement has been criticized for its lack of reliability. Objectives : The purposes of this study are to determine if one cun measured by the directional methods have a consistency with that of proportional methods and to investigate which factors are related with these differences, especially in forearm. Methods : The distance between the elbow crease and the wrist crease of forearm was compared to a reference value of one cun obtained by the directional method. In this method, one cun is one third of the distance between index finger and Small finger of a subject, measured at proximal interphalangeal joint. In addition, to investigate the factors influencing the differences between these two methods, we measured the height and body weight and calculated body mass index (BMI). Finally we analyzed the factors correlated with these lengths by linear regression test. Results : The results showed that one cun obtained by the directional methods were significantly different from one cun by the proportional methods in forearm. It was demonstrated that the length acquired with the directional method was more correlated with body weight and body mass index, while the length obtained by the proportional method was more correlated with the height.
스포츠 매니지먼트활동에서 매니저들의 책임 수행에 관한 연구
박준석,김정묵,정석현,조영웅,이영성 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1
Sport has taken a position as significant influence all over the world for a long time. These days, sport must exist with us in order to provide pleasure, so people have a tendency to expect it what happens to them. Therefore, a number of sport teams and competitions are able to stimulate people to be interested in sport. Sport event, information, equipment, and sport player management need systems which accompany with security and pleasure because the systematical managements establish security, and help sport players not to make an error that is a fountain of good quality game. Thus, sport players improve their ability, so the audience are willing to pay to see the game. In order to extend the power of sport influence, sport should be organized in terms of managing sport processes well. Unfortunately, the system of management for sport is not still adequate and organized in Korea. In other words, many materials must be sporadic, and newspapers or magazines have treated of sport management with fragmentary knowledge so far. Today, systematical management is essential to all segments of the sport industry, professional or amateur, school or club, private or government at any level community or individual. Hopefully, this research will be instructive as a starting point to derive a special quality of sport management which is suited to korea sport market by comparing to other management systems in order to formulate organized management industry.