Characteristics of F₂Hybrids from Crosses between Korean Cultivars and Canadian Cultivars in Buckwheat(Fagopyrum esculentum Moench.)

Yoon,Kyoung-Min,Hong,Soon-Kwan,Park,Cheol-Ho 한국자원식물학회 2002 Plant Resources Vol.5 No.1

Korean cultivars of buckwheat(Fagopyrum esculentum Moench.) was crossed with Canadian cultivars in order to improve seed yield as well as leaf production of buckwheat for using as food and medicine. The agronomic characteristics and rutin contents of F₂hybrids are investigated for further selection of superior lines. Dry weight per plant was the highest in a line 1110(6.71g) and leaf weight per plant was the highest in a line 1110(1.91g). Hybrid seeds were 0.55 - 0.70cm long and 0.37 - 0.47cm wide on average. 100 seeds weight ranged from 2.57g to 3.58g. Line 1076 produced the longest seeds(0.70cm) and line 1186 was the longest in seed width. Line 1196 showed the highest 100 seeds weight(3.58g). The highest frequency of the LWR(length/width rate) was 0.66~0.70, indicating that seed shape of the hybrids was mostly oval. Line 1087 showed the highest contents of rutin(77.26ppm). Lines 1090 and 1181 contained respectively rutin of 54.76ppm and 54.35ppm in the seeds. From the yield and rutin point of view, the most superior lines was line 1087 among the lines used for this study.

지베렐린과 에세폰의 葉面撒布가 '美白' 복숭아의 熟期와 品質에 미치는 影響

김영호,윤철구,임상철,김학현,이철희,최관순,김선규 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

In order to obtain the basic data for artificial maturity control of 'Mibaek' peach, GA and ethephon were foliar sprayed 4 weeks prior to harvest, and their effects on fruit maturity and quality were examined. GA and ethephon tended to decrease the fruit weight except 100mg ㆍ L-1 GA+50 to 100mg · L-1 ethephon treatment. GA increased the fruit firmness, and ethephon at higher concentration increased the fruit drop. Harvest date was advanced for 7 to 8 days by ethephon while was delayed for 6 to 8 days by GA treatment, regardless of concentration.

공기청정기의 일부 실내공기 오염물질 제거효율에 관한 연구

이태형,김윤신,홍승철,이철민,김종철,전형진,김중호 한국환경과학회 2005 한국환경과학회지 Vol.14 No.5

In this study, we investigated PM_(10), NO₂, and 1-hydroxypyrene(1-OHP) in urine at indoor environments which are 35 houses and 20 hospitals for using air cleaner and non-using air cleaner in Seoul metropolitan area and Kyoung-gi province from April, 2003 to February, 2004. Moreover, we examined effect of improvement for indoor air quality and health effect by concentration of 1-OHP also we investigated removal efficiency by air cleaner for PM_(10), NO₂, and 1-OHP that were 28.5%, 27.4%, and 42.1% respectively. Concentration of PM_(10), NO₂, and 1-OHP were 19.02±18.14μg/m³, 8.66±3.06ppb, and 0.19±0.18μg/g creatinine when air cleaner was no worked. The concentration for PM_(10), NO₂ and 1-OHP were 13.60+10.79μg/m³, 6.29±2.71ppb, and 0.11±0.10μg/g creatinine, respectively. It was significant statistically. Therefore, it is considered using the air cleaner to remove the partial pollutants in indoor environment and is positive effect for health.

자궁내 발육지연이 있는 출생체중 2,500 g 이상인 환아의 주산기 예후에 관한 연구

송태복,조명숙,하진아,윤대석,김철홍,김윤하,최영륜 全南大醫大 2004 전남의대학술지 Vol.40 No.1

靑少年運動選手의 肺機能에 關한 硏究

尹坪晋,廉哲鎬 朝鮮大學校 附設 醫學硏究所 1983 The Medical Journal of Chosun University Vol.8 No.1

Despite the theoretical problems of the water spirometer and its poor frequency response, the water spirometer is adequate for the physiological function tests even in healthy people. We must encourage the use of the spirometer as part of routine examination of nearly all adult patients. Recently, Pulmonary function studies are widely used in evaluation of various physical condition. The aim of this study was to report the pulmonary function studies of young athletes. Subjects were 221 young athletes from 11 to 17 years of age. They were elementary school boys and girls, middle school boys and girls, high school boys and girls. The following were mainly observed for the study; frequency of breath, vital capacity, tidal volume, and breath holding time. The results obtained were summarized as follow; 1. Frequency of breath; (cycle/min. M±SD) Elementary school boys show 18±5.5, elementary school girls 19±5.0, middle school boys 17±2.3, middle school girls 17±3.0, high school boys 15±6.5, high school girls 15±5.7. 2. Vital capacity; (ℓ, M±SD) Elementary school boys show 1.63±0.138, elementary school girls 1.60±0.241, middle school boys 3.08±0.650, middle school girls 2.79±0.562, high school boys 4.24±0.545, high school girls 2.90±0.792. 3. Tidal volume; (㎖, M±SD) Elementary school boys show 393±40.7, elementary school girls 439±108, middle school boys 590±103, middle school girls 508±78.6, high school boys 727±113, high school girls 618±84. 4. Breath holding time; (sec, M±SD) Elementary school boys show 43±15.5, elementary school girls 45±15.4, middle school boys 53±9.7, middle school girls 46±9.4, high school boys 57±12.9, high school. girls 45±10.1.

身空詞腦歌 揷疑

尹徹重 상명대학교 논문집 1984 상명대학교논문집 Vol.14 No.-

Singongsanaega(身空詞腦歌) is a Hyanga(鄕歌) which has lost both its melody and words. It was long extant since. The King Wonseong's Tale(元聖王說話) contains the title of this song. Considering through the King W's Tale singongsanaega seems to have been a ritual song which was performed in the secret offering(密祀) before the accession of the King on the throne. The dream in the King W's Tale is believed to be the expression of subconsciousness of primitive concept. The King's wearing a white hat(素笠) in his dreams symbolizes the archtype of a white mountain and his entering a weel also symbolize his becoming a dragon(成龍). The while mountain or the dragon(龍) has the sacred connotation and the symbolic expression which is connected with the ancestor's soul(祖靈). An analysis of the records which is related to the epitaph at Sungbock Temple(崇福寺) indicates that it has a close connection with the primitive concept and that is has the elements of resistance to the autocracy of the middle Shilla and to the foreign civilization.

광조사 방법에 따른 치과용 심미수복재의 중합수축

윤태호,이용근,임범순,김철위 대한치과기재학회 2000 대한치과재료학회지 Vol.27 No.4

Dental resin composites were introduced commercially in the mid-1960s for the restoration of anterior teeth. Since their advent, resin composites have undergone significant development, which continues to improve the longevity and application of resin composite restorations. Despite the development of new dentin-bonding agents, no system is currently available that completely withstands the formation of contraction gaps at the cementum/dentin-restoration junction, due to the unavoidable polymerization shrinkage of the resin composite during setting, therefore, a major aim of this study was to minimize or control the polymerization shrinkage of composites allowing flow of resin during setting reaction. A thermal dilatometer (DIL 402C, TASC 414/3A Controller, Netzche, Germany) was used to measure and compare conventional continuous cure and pulse cure polymerization shrinkage of seven light curing dental composites and three compomers. For conventional cure, restorative material were polymerized for 2 minutes using VIP (Bisco, U.S.A.) with 400 ㎽/㎠ intensity. After then, further polymerization was allowed for next 12 minutes that total 14 minutes of shrinkage was measured. For pulse cure, material was pre-polymerized irradiating light for 5 seconds with 200 ㎽/㎠ and post-ploymerized 3 minutes later with 400 ㎽/㎠ for 2 minutes. 9 minutes were allowed for further polymerization that total 14 minutes of shrinkage was measured. Polymerization shrinkage ranged from 3.758 ㎛/㎜ (SYC) to 6.897 ㎛/㎜ (P60) for conventional cure and 4.026 ㎛/㎜ (FLT) to 6.996 ㎛/㎜ (SRF) for pulse cure. The highest difference between the two methods was found at EAN (2.713 ㎛/㎜), followed by F20 and CRA which showed significant differences of 2.133, 1.274 ㎛/㎜ respectively (p<0.05). The least difference was found at SYC (0.489 ㎛/㎜). Universal resin composite group showed the highest polymerization shrinkage (6.514±0873 ㎛/㎜), and flowable composite showed the least shrinkage (4.139 ㎛/㎜). Packable composite showed 5.090±1.906 ㎛/㎜, and compomers showed 6.129±2.652 ㎛/㎜.

GOMS분석에 의한 HTS 사용자 인터페이스 평가

윤철호 선문대학교 ·중소기업기술지원연구소 2002 선문공대 연구/기술 논문집 Vol.7 No.1

본 연구에서는 인터넷 응용시스템의 설계 및 평가기법으로서의 GOMS 기법의 타당성을 검토하였다. 인터넷 응용시스템의 예로서 HTS를 이용하였다. 그 결과, GOMS기법은 KLM수준에서 실제 시스템의 직무 처리시간을 매우 근접하는 수준으로 예측한다는 것을 알 수 있었다. 이것은 GOMS기법이 현재 이용되고 있는 인터넷 응용시스템의 설계 및 평가기법으로서 적용 가능하다는 것을 의미한다. This study reviews the propriety of GOMS model as a methodology of design and evaluation tool for internet application systems. The HTS (Home Trading System) is selected as an example of internet application systems. It was observed that GOMS model estimates the task-processing time of the systems very approximately to KLM level.

Pipe 및 Hose Ass'y 생산시스템 공정최적화 설계 연구

윤철호,이수완 선문대학교·중소기업기술지원연구소 1998 선문공대 연구/기술 논문집 Vol.3 No.1

자동차 에어콘 부품인 Pipe 및 Hose 조립 공정의 생산성을 향상시키기 위하여 공정분석을 실시하였다 시간 연구법에 의해 대상 공정인 5개의 Pipe 및 Hose Ass’y공정에 대한 관측을 하였고. 그 결과 공정별 요소작업및 요소작업별 표준시간을 설정하였다 표준시간을 기초자료로 활용하여 line balancing을 실시한 결과 공정을 재배치 하게되면 공정의 균형 손실이 현저하게 줄어든다는 것을 알 수 있었다. Process analysis was conducted to improve productivity of the automobile airconditioner parts assembly lines. First, five pipe and hose assembly lines were observed by time study methodology. Using the results, element works of target assembly lines and standard time of element works were fixed. Next, line balancing methodology was utilized to evaluate current productivity of target process and layout status The results suggested remarkable line balancing effects when target process relocated

"石南思內"의 性格에 대한 試考

尹徹重 상명대학교 논문집 1984 상명대학교논문집 Vol.13 No.-

Sucknamsanae (石南思內) was first originated in Dodongbul (道同伐) as a county music county music is a song which represents well the specific features of the county. Considering it was a means of recreation played by the people of Dodongbul "Sucknamsane" appears to be a song performed in a ritual of the county. If this could be supposed as a ritual song a question arises for what type of the ritual it was performed. In approaching this question a definition of sucknam should first be made. The term sucknam has two possible interpretation; one was derived from the literal definition "before the ritual stone", and the other was the meaning of "sucknam flower". Interpreting "suck" as stone the writer has pursued the possibility of its having two meanings; stone and ancestral spirit. Ritual stone meant ancestral spirit in ancient Korea. Since "nam(南)" was denoted as "ap (앞)" meaning in front ii can be interpreted as "before". Stone can be regarded as a praying stone which has a vital power of ancestral spirit. If sucknam is regarded as "Sucknam flower" its meaning can be found in "Susupsucknam"( 首揷石枏 ) which is known as a corpse honoring tale. Susapsucknam Tale" is a story based on the archaic type of regeneration story. Sucknam flower was regarded as having a spell power of regenerating the dead. In "Ogugud" rite, princess Baradegi revives her king father with the flower. The flower could also be used in the funeral. If sucknam was a flower tht was used for sending the dead to the other world "sucknamsane" can be interpreted as a song performed in the ritual wishing the resurrection of the dead.