Three-Dimensional Z-Plasty(Yoon's Method)를 이용한 내안각 췌피 성형술

박흥식,김우신,윤진호,나민화,김한중 대한미용성형외과학회 1997 Archives of Aesthetic Plastic Surgery Vol.3 No.1

The presence of epicanthal folds in Asian eyelids is one of their unique features, in combination with the lack of supratarsal folds. Western culture has influenced many people to prefer to eliminate the prominent epicanthal fold. A number of surgical techniques have been suggested for their correction. However, difficulty with design, excessive and prominent scarring of medial canthal and nasal area, recurrence, and rigidity of application are potential problems associated with many procedures. This paper describes a epicanthoplasty with three-dimensional Z-plasty. Through epicanthal fold incision, the medial canthal tendon is medially advanced and sutured to the periosteum of nasal bone. After the transposition of the flaps, trimming of the flap is usually required. Three-dimensional Z-plasty creates the attractive eyes. From March, 1995 to March, 1997, the technique was applied to 37 patients with epicanthal fold and was performed with or without double-fold operation. There were 34 females and 3 males with ages ranging from 17 to 30 years. Through 2 years follow-up, this technique has delivered esthetically good results with minimal postoperative scar and could made the reduction of ICD from 40 ± 2.13 mm to 34 ± 1.98 mm. The advantages of epicanthoplasty procedure using three-dimensional Z-plasty(Yoon's method) are as follows; 1) simple in design 2)minimal postoperative scar in the medial canthal area 3) versatile in its application 4) no recurrence 5) no hypertrophic scar 6) preserving ethnic identity.

Protective Effects of N-acetylcystenine and Selenium against Doxorubicin Toxicity in Rats

Yeo-sung Yoon,Sun-don Kim,Min-hye Lee,Heung-shik S.Lee,In-se Lee,Je-kyung Sung,Eun-sung Park 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Effects of N-acetylcysteine and Selenium against Doxorubicin Toxicity in RatsEun-sung Park, Sun-don Kim1, Min-hye Lee, Heung-shik S. Lee, In-se Lee, Je-kyung Sung and Yeo-sung Yoon*

Phosphazene 유도체로 경화시킨 Epoxy 수지의 열적성질

尹興洙 慶一大學校 1992 論文集 Vol.8 No.1

1,1-Diamino-3,3,5,5-tetraphenoxycyclotriphosphazene(APP). 1,3,5-trichloro-1,3,5-tridimethylaminocyclotriphosphazene(C13), 1,1-diamino-3,3,5,5-tetra-(2,2,2-trifluoroethoxy)cyclotriphosphazene(AFEP), 1,1-diamino-3,3,5,5-tetra-(p-chlorophenoxy)cyclotriphosphazene(ACPP) were synthesized from hexachlorocyclotriphosphazene(PNC) and used as curing agent of epoxy prepolymers(Bisphenol A-type, diglycidyl ether, EPIKOTE 828, 184-194 g/eq. and phenol novolak type, EPIKOTE 154, 179 g/eq.). The thermal stability, flame retardancy of the epoxy resin cured by phosphazene derivatives were investigated and compared with those of epoxy resin cured by conventional aliphatic and aromatic diamines. Higher thermal stability of the epoxy resin cured with phosphazene derivative is always recognized when compared with that cured with conventional aromatic curing agent or aliphatic curing agent. The heat resistance of the epoxy resin cured by ACPP, estimated by the residual weight at 600℃, was the best, i.e., 24℃ When compared the heat resistance of the epoxy resin of EPIKOTE 828 and 154 cured by phosphazene derivatives, better result is always obtained from EPIKOTE 154. The flame retardancy of the epoxy resin cured by phosphazene derivatives, estimated by the LOI value was found to be excellent.

네트웍 트래픽 관리를 위한 데이터 웨어하우스 시스템 구현

윤상의,유흥렬 한국경영과학회 1998 한국경영과학회 학술대회논문집 Vol.- No.1

A data warehouse is a repository of information integrated from several, heterogeneous, operational databases. Data warehouses are usually dedicated to the processing of data analysis and decision support system (DSS) queries. Although diverse tools are used in network traffic management, network managers should undergo several steps to get necessary information because manual works still take a major part in handling traffic management. This paper presents design and implementation of a data warehouse system for managing network traffic data consistently and providing a useful information to network mangers quickly.

피나무(Tilia amurensis), 뽕잎피나무(T. taquetii), 일본피나무(T. japonica)의 형질분석을 통한 분류학적 한계

尹準九,張珍成,金輝,張桂羨,李興洙 서울大學校農業生命科學大學附屬樹木園 2003 서울大學校 樹木園 硏究報告 Vol.- No.23

본 연구는 한국산 피나무속의 3종(T.amurensis, T. insularis, T. taquetii)과 일본피나무(T.japonica)를 대상으로 6개 정량 형질(잎의 길이와 폭, 털의 밀도, 화경의 길이, 열매의 길이와 폭)을 비교 검토하였다. T.amurensis(피나무)와 T. insularis(섬피나무) T. taquetii(뽕잎피나무)는 기존에 잎의 크기와 털의 정도가 주요 형질로 알려져 있지만 본 연구결과 모두 뚜렷한 구분이 없는 연속변이를 보였다. 또한, 일본피나무와 국내 자생 피나무와 비교한 결과 기존에 알려진 화경의 길이에서 차이를 보였는데 제한된 개체를 근간으로 조사한 결과 일본피나무가 다소 긴 것을 확인하였다. 국내 자생 피나무, 섬피나무, 뽕잎피나무의 경우 독립된 종이기보다는 모두 피나무의 지역적 변이체임을 확인함과 동시에 동일종으로 처리하는 것이 타당하다고 생각한다. 그러나, 일본피나무의 경우는 좀 더 많은 개체수를 확보하여 화경의 길이에 대해 보다 자세한 조사가 이루어져야 할 것으로 생각된다. The hair density and type of leaf and bract, size of leaf and absence/presence of staminodes are important to recognize many taxa of Tilia. The systematic relationships among T. amurensis, T. insularis, T. taquetii in Korea and T. japonica in Japan were confused and were not clarified yet. Flower and fruit specimens of 121 individuals were sampled to investigate patterns of intraspecific variation and to evaluate the species delimitation among Tilia amurensis, T. taquetii, T. insularis, and T. japonica using six characters. The morphological differentiation among T. amurensis, T. insularis, and T. taquetii was not sufficient to warrant recognition of either specific or varietal status and should be treated as conspecific under T. amurensis. Based on results of limited number of specimens, the morphological discontinuity between T. amurensis and T. japonica was found only in peduncle length. Further study on this reproductive character are required to conduct any taxonomic treatment on these taxa.

당뇨병환자에서 게이트심장혈액풀신티그라피를 이용한 심기능 평가

윤상임,송치운,이진홍,안미애,성기양,송민호,이강욱,신영태,김영건,노흥규 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2

Major cardiovascular complications of diabetes are coronary atherosclerosis, diabetic dilated cardiomyopathy, autonomic neuropathy and those are major causes of morbidity and mortality in diabetic patients. Gated blood pool heart scan is noninvasive and useful method for evaluation of functional status of heart in diabetics. We evaluated 52 patients with diabetes and divided 3 groups. Group 1 were 11 patients without proteinuria or with proteinuria less than 550mng during 24 hours. Group 2 were 9 patients with proteinuria more than 550mg during 24 hours and group 3 were 32 patients with endstage renal diasese due to diabetes. We performed 99mTc-HSA cardiac gated blood pool scan and used left ventricular ejection fraction(LVEF), peak ejection rate(PEF) to indices of LV systolic function and peak filling rate(PER) to index of LV diastolic function. The results were follows : 1) LVEF, PER were significantly lower in diabetics with ESRD than diabetics without ESRD, but there were no significant difference between normal controls and diabetics without ESRD 2) PFR was significantly lower in diabetics than normal controls, but there were no significant differences in diabetics with or without nephropathy. 3) There were negative correlation between PER, PFR and duration of diabetes. On the basis of results, PFR is a LV functional index of GBPS which can disclose early change of LV dysfunction in patients with diabetes.

데이타베이스산업과 저작권

윤영철,변동현,박흥수 연세대학교 언론연구소 1992 언론 사회 문화 Vol.- No.2

Diaminotetrabromophenoxycyclotriphosphazene에 의해 경화된 에폭시수지의 내약품성

尹興洙 慶一大學校 1997 論文集 Vol.14 No.2

1, 1-diamino-3, 3, 5, 5-tetra-(p-bromophenoxy)cyclotriphosphazene (ABPP) and 1, 1-diamino-3, 3, 5, 5-tetra-(p-chlorophenoxy)cyclotriphosphaene(ACPP) was prepared fromhexachlorocyclotripho-sphazene and used for the curing agent of bisphenol A type epoxy resin(EPIKOTE 828)and phenol novolak(EPIKOTE 154). The resistance to chemicals and water of the cured epoxy resins were examined by DMA and compared with those of the epoxy resins cured with ACPP and 4, 4' diaminodiphenylmethane(DDM). The effect of the curing agent on resistance to chemicals and water of the cured epoxy resins were investigated. The epoxy resins cured with ABPP showed superior resistance to chemicals and water to those of ACPP and DDM. It is an effective curing agent for epoxy resins to enhance the resistance to chemicals, water and flame proofing.

초고분자량 PE와 고밀도 PE 블렌드의 젤 방사에 관한 연구(I) : 블렌드의 열적 성질 Thermal Properties of Blends

尹興洙,崔景植 慶一大學校 1993 論文集 Vol.9 No.1

The thermal properties of Ultra High Molecular Weight Polyethlene and High Density Polyethylene blends were studied to enhance the spinnability of UHMW PE to decrease the viscosity of UHMW PE by additioning HDPE and to enhance the spinnability of UHMW PE. Increasing the content of UHMW PE, the crystallization onset temperature and maximum crystallization temperature of the blends were linearly increased and had the same value above 90% UHMW PE content. Above 50% UHMW PE content, decreasing the content of HDPE, the width of crystallization temperature of the blends were decreased. It is concluded that the crystallization rate of blends was increased by the increase of nucleation level. From the thermal propties of UHMW PE/HDPE it is expected that the physical properties of blends can not be obtained the same level of pure UHMW PE gel above 20% HDPE content.

資産再評價에 관한 硏究 : 公開法人의 利害關係를 中心으로

尹興實 건국대학교 1980 論文集 Vol.12 No.1

In the circumstances of deep inflation such like in our country, the value of assets for business belong to the enterprise has not been coincident between books value and practical value. In this connection, the values ystem in business has conspicuously been distorted and it has occurred many unrealities in business. Therefore, the purpose of this study is to present a business rationalization with a solicition of this revaluation. Consequently, it prevent erosions of capital, and reduce the corporation tax by the approved depreciation cost. Despite there are many merits in this revaluation such as exemption of the corporation tax against the revaluation excess, exemption of the registration tax in case that the excess portion would be booked into in creasing capital and so on, no small measure of firms in our country do not enforce this revaluation. It is considered as the reason why is that the most of firms have fears about any heavy burden against revaluation excess tax, because they are almost with large ratio of investment with non·depreciatory assets such as the land and\or woodland. In this study, there analyzed some relations interested mainly in the disclosured corporation of capital exceeding 5 billion won(\5,000,000,000) anti the disclousured corporation of capital under 5 billion won. In an discloused corporation of capital exceeding 5 billion won who has deficit carried forward, as shown in the case #1 and case #5, despite no increasing of limited receptional expenses, it is profitable due to the reduction of corporation tax by the increased depreciation cost, however, as shown in the case #2 and case #6, it will be disadvantageous to the corporation if the deficit carried forward is less than the excess of the revaluation. On the other hand, with no deficit carried forward as shown in case #3, 4, 7 and 8, the corporatio is disadvantageous in most cases even with increasing of depreciation cost, owing to the whole burden of the tag aginst the revaluation excess and no increasing of limited receptional expenses. In an disclosured corporation of capital under 5 billion won who has deficit carried forward, as shown in the case #10, 13 and 14, the corporation is profitable with the revaluation by the increasing of depreciation cost and the increasing of limited receptional expenses. But if there is no presence of revaluation excess from the depreciatory assets, it occur losses from the first fiscal year. Otherwise, accompanying no deficit carried forward, as shown case #11, 12, 15 and 16, increasing the excess of revaluation from the depreciatory asset arise advantages to the disclosures corporation. In an disclosured corporation of capital exceeding 5 billion won, who accompany no deficit carried forward account, it is disadvantageous to the corporation, however, it is understandable that is profitable to the corporation of capital under 5 billion won. With a view to the above data, it is acknowledged that any revaluation shall be disadvantageous if it goes with increasing of non-depreciatory asset and no increasing of depreciatory asset, while even with the deficit account. At this time, it is essentially required to reduce the revaluation tax against the non-depreciatory asset. And if the Government gives some priority in administration to the corporation who enforce the revaluation against his asset, it shall be helpful to solicit the revaluation to every corporation. As a result, the revaluation of assets in every corporation carrying profitable situation can attempt a true business rationalization and effect the efficient mobilization of civil capital and achieve the upbringing of the capital market, and also contribute to the development of the national economy