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경부도상피판을 이용한 구강내 결손부의 재건 - 13증례분석
김종렬,강영기,서종천,성일용 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.3
The celvical flap, comprising skin, fascia, and platysma muscle, has significant application in the head and neck region after radical ablative surgery for cancer of the oral cavity. The flap may be used for recon-struction of the cheek, floor of the mouth, and lateral side of the tongue. This flap minimizes donor morbidity by use of cervical operation wound and flap size available is adequate for most oral defects and the procedure is relatively simple and time-saving. However the flap is not applicable in patients where there are large tissue defects and metastasis is suspected. We have used the celvical flap for its rapid, simple, and effective closure of oral defects after cancer ablation and found it is very useful for the reconstruction of relatively small oral defects.
하악전돌증 환자의 악교정 수술후 하악과두의 위치변화에 대한 연구
강영기,감종렬,양동규 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.4
Purpose : This study was aimed at analysis of the changes in the condyle position in subjects with mandibular setback osteotomies Method : Twenty patients were evaluated retrospectively for their changes in the condyle position who underwent surgical mandibular setback using bilateral sagittal split osteotomies with a manual condyle repositioning technique and rigid fixation. The cephalometric and panoramic analysis was performed preoperatively, 1 week, 6 months, and 1 year postoperatively. And postoperative noise, temporomandibular joint pain, and mouth opening were clinically examined 2 months, 4 months, 6 months, 8 months, 10 months, and 12 months postoperatively. Result : The condyles rotated posteriorly and laterally immediately after surgery, and they returned to the preoperative position during follow-up period but it is not significant. The statistical analysis (Paired t-test) showed no significant effects in postsurgical stability. The changes in the condyle position didn't have a significant harmful influence on temporomandibular joint disorder. Conclusion: A careful surgical mandibular setback using manual condyle repositioning and fixation technique will move condyle minimally and that will decrease the relapse and temporomandibular joint disorder.
Riboflavin Tetrabutyrate의 합성에 관한 연구
李英行,李鍾律,李寀浩 圓光大學校 基礎自然科學硏究所 1983 基礎科學硏究誌 Vol.2 No.1
Riboflavin(Vitamin B_2) is a component of two closely related coenzymes, flavin mononucleotide(FMN) and flavin adenine dinucleotide(FAD). Riboflavin tetrabutyrate is more fat-soluble than riboflavin, which is highly absorbed in vivo. and hydrolysed to give riboflavin. Riboflavin tetrabutyrate has always been synthesized by general method of ester. But the use of DMAP was found be very effective for esterification of riboflavin with butyric acid.
김광수,손영아,신승렬 경산대학교 생명자원개발연구소 1999 생명자원과 산업 Vol.3 No.-
매실의 향기성분은 50여종 중 알콜류가 benzyl alcohol, linalool, 1,6-octadien-3-ol, n-haxanol 등 10여종, aldehyde류가 2-hexenal, benzaldehyde, n-hexanal 등 3종, acid류가 butanedionic acid, acetic acid, 2종, 2-iodo-hexane 등 hydrocarbon류가 5종, butanedioic acid-diethyl ester를 포함한 ester류가 3종, β-ionone을 포함한 ketone류가 3종 그리고 기타 성분이 2종이었다. 매실이 성숙함에 따라 향기성분의 수가 증가하고 그 함량도 증가하는 경향이었다. 매실의 비휘발성 유기산의 조성은 succinic, fumaric, oxalic, malic, tartaric 및 citric acid이었다. 매실의 비휘발성 유기산은 성숙 초기에는 malic acid와 oxalic acid의 함량이 높았고, 성숙중기이후에는 malic acid와 citric acid의 함량이 높았다. Citric acid의 함량이 증가한 반면에 대부분의 유기산은 감소하는 경향이었다. 휘발성 유기산은 성숙중에 formic acid함량은 감소하고 butyric acid의 함량은 증가하는 경향이었다. 총 유기산의 함량은 매실 성숙에 현저히 감소하는 경향이었다. Apricot fruits were composited about 50 of flvor components, 10 of alcohol including benzyl alcohol, linaool, 1,6-octadien-3-ol. et al, 3 of aldehyde including 2-hexenal, benaldehyde, n-hexanal, 2 of acid including butannedionic acid, acetic acid, 5 of hydrocarbon including 2-iodo-hexane et al, 3 of ester including butanedioic aciddiethyl ester, 3 of ketone including β-ionone et al. Flavor components of apricot fruits were increased during maturation. Nonvolatile organic acids of apricot fruits were succinic, fumaric, oxalic, tartaric and citric aicd. Contents of malic and oxalic acid were high at 30, May, but contents of malic and citric acid were high after 9, June. Citric acid of nonvolatile organic acids was increased during maturation, but other were decreased during maturation. Formic acid of volatile organic acids was decreased during maturation, but butyric acid was increased. The contents of total organic acid was increased during maturation.
Growth, Protein and Pigment Content of Rice Seedlings under Phosphorus Deprivation Condition
Myoung Ryoul Park,Young-Doo Kim,Key-Young Kim,So-Hyeon Baek,Song Joong Yun 韓國作物學會 2003 Korean journal of crop science Vol.48 No.2
Phosphorus (P) is a macronutrient playing important roles in many plant processes. Significant interest has been devoted to search and utilize genotypic variations in P use efficiency in rice but with little effort to understand its physiological and biochemical bases. In this study, we examined responses to P deprivation of some primary and secondary traits in 3-week-old seedlings of the three genotypes, Sobi-byeo (japonica), Dasan-byeo (japonica ~times indica) and Palawan (indica). In general, percent weight due to root was increased up to 26%, but amounts of root protein and proteins secreted from roots were decreased by 11 to 19% and 31 to 51 %, respectively, by 3 to 21 days of P deprivation in the three genotypes. Interestingly, however, responses of Palawan to short-term P deprivation were contrasting to those of Dasan-byeo and Sobi-byeo in seedling weight and contents of shoot protein, chlorophyll and anthocyanin. Seedling weight was not decreased, but shoot protein content was decreased in P-deprived seedlings of Palawan. Contents of chlorophyll in leaves and anthocynin in roots were increased in Dasan-byeo and Sobi-byeo, but decreased in Palawan. The results suggest that responses of protein and pigment synthesis to P deficiency are different in modem and traditional varieties and the difference may at least in part be due to the selection for high yield under highly fertilized conditions.