葡萄(Campbell Early)의 結實에 미치는 GA 및 覆袋의 影響

權相洙,具禹書,朴正璂,權五昌,李容門 東亞大學校 1983 東亞論叢 Vol.20 No.3

葡萄 Campbell Early 의 無核果 生成 및 成熟促進을 위하여 GA₃ 濃度別 그리고 몇 가지 覆袋處理를 한 實驗結果는 다음과 같다. 1. 果房重과 果粒數는 滿開 8日前 處理가 適期로서 果房重은 無處理에 비해 76.4%, 果粒數는 80.6%였다. 2. 1果房當 無核粒率(92%)과 100粒中 種子數(12個)는 滿開 18日前, Gibberellin 處理+cellophane紙 覆袋區가 가장 良好하였다. 3. 果粒數와 種子數(r=0.826) 또한 種子數와 果重間에는 정의 相關關係(r=0.841)를 나타내었다. 4. 糖度는 無處理區보다 cellophane紙 覆袋區가 9.34% 로서 높았다. 含水量과 灰分은 無處理와 新聞紙 覆袋區가 높았고 cellophane 紙 覆袋區가 낮았다. 5. vitamin C 含量은 Gibberellin 處理時期가 빠르고 無核率이 높을수록 낮은 傾向이엇다. 處理間에 있어서는 無處理와 parchment紙 袋覆區 많았고 cellopnane紙 袋覆區가 含量이 적었다. 6. Gibberellin 處理時期를 앞당기고 cellophan紙 袋覆를 하면 無核率이 높은 反面 果粒數 果重이 減少되고, Gibberellin 處理時期를 늦추고 新聞紙 覆袋를 하면 果粒數 果重은 增加하지만 無核率이 낮아졌다. The results obtained by the Gibberellin and bagging treatment on the Campbellearly grape are as follows: 1. The suitable period of treatment for cluster weight and number of berry are to be before 8 days of full bloom. The cluster weight was 76.4% and number of berries were 80.6% compared with control. 2. The ratio seedless berries of 92% per cluster, and number of 12 seedss in 100 beries were showed the best on before 18 full bloom at the bagging plots of Gibberellin treatment+cellophane paper. 3. Number of berry and number of seed (r=0.826) also were showed mutual relation of plus between the number of seed and fruit weight. 4. Soluble solid was showed higher of 9.3% at the cellophane paper bagging plot and 9.34% at the parchment paper bagging plot than the control. Juice content and ash were showed high at the conthol and newspaper bagging plot, and low at the cellophane paper bagging plot. 5. The content of vitamin C was showed low tendency at the higher of the seedless ratio with the quick Gibberellin treatment period. At the betweentreatment, the control and parchment paper bagging plot were showed much, and showed less content at cellophane paper bagging plot. 6. In advance the period of Gibberellin treatment and had cellophane paper bagging then the ratio of seedless would be high, but on the contrary, the number of berry and fruit weight decreased, and had delay the period of Gibberellin treatment and had the newspaper bagging, the number of berry and fruit weight would be increased but the ratio of seedless was low.

비·부비동 모형에서 전비공 및 비인강폐쇄 정도에 따른 상악동 환기의 변화

권오성,김기식 東國大學校醫學硏究所 2003 東國醫學 Vol.10 No.2

목적 : 부비동염은 부비동 점막의 염증성 질환으로 상기도에 발생하는 가장 흔한 질환이다. 부비동의 정상적인 생리는 부비동의 자연개구부를 통한 환기, 점액섬모운동, 점막을 통한 산소교환, 점막내의 혈액공급등이 적절하게 유지되는 것을 말하며, 이러한 정상생리를 방해하는 다양한 원인으로 부비동염이 발생한다. 부비동의 환기는 자연개구부의 크기, 비강의 크기와 모양, 비강내 기류, 부비동의 크기, 점막의 병리적 상태등과 같은 다양한 인자에 의해 영향을 받는다. 본 연구는 전산화단층촬영 영상을 토대로 실물크기의 비부비동 모형을 제작하여, 모형의 전비공 및 비인강의 폐쇄정토에 따른 상악동의 환기정도가 어떤 변화를 보이는지 알아보고자 한다. 재료 및 방법 : 비과적 증상이 없는 건강한 성인남자로부터 얻은 전산화단충촬영 영상으로 비부비동 모형을 제작하였다. 모형의 좌측 상악동으로 100% 산소를 주입한 후 비인강에 연결된 관을 통해 지원자가 입으로 호흡하는 동안 좌측 상악동의 산소농도를 측정하였다. 상악동내 산소농도가 95%에서 25%로 감소하기 위한 호흡횟수를 측정하였고 이를 30회 반복하여 평균호흡횟수(RN95-25)를 구하였다. 고무찰흙을 이용해서 전비공 폐쇄 및 비인강 폐쇄 모형을 만들어 각각 같은 방법으로 호흡횟수를 측정하여 정상과 비교하였다. 결과 : 정상 모형에서 평균 호흡횟수(RN95-25)는 27.50±2.36회 이었다. 동측 전비공 폐쇄 모형에서는20%, 40%, 60%의 폐쇄시 각각 16.30±1.53, 11.47±1.20, 7.40±0.89회로 유의한 호흡횟수의 감소를 보여(P<0.05) 동측 상악동의 환기정도가 정상에 비해 증가함을 알 수 있었다. 비인강 폐쇄 모형에서는 20%, 40%, 60% 폐쇄시 각각 19.16±1.93, 20.87±1.67, 21.51±1.72회로 감소하였으나 80% 폐쇄시에는 35.77±1.78회로 유의한(P<0.05) 호흡횟수의 증가를 나타내어 일정수준 이하의 폐쇄에서는 환기정도가 증가하였으나 그 이상에서는 감소함을 알수있었다. 결론 : 전비공 폐쇄시 상악동 환기증가는 비강내의 기류분포의 큰 저항 없이 비저항을 크게 증가시켰기 때문이라고 생각된다. 반면 비인강폐쇄로 인한 비저항 증가는 일정 수준까지는 기류 증가로 인한 환기증가를 가져오지만, 그 이상에서는 중비도를 통한 기류를 감소시켜 상악동 환기를 저하시키는 것으로 사료된다. 향후 동일한 모형으로 비강내 기류및 압력을 함께 측정하는 실험을 통해 비강내 구조와 상악동 환기에 대한 공기역학적 관계를 보다 잘 이해할 수 있을 것으로 생각된다. Objectives: The sinusitis is the mucosal inflammation of sinus which is most common in upper respiratory tract. Decreased ventilation of sinus ostium is probably the most important in the development of sinus and these sinus ventilation are deranged by the dysfunction of the physiologic orders affected by the multiple causes; the size of natural ostiums, contour and air streams of nasopharynx, the size and pathologic conditions in the sinus. The connection between structural alteration in naso-nasopharyngeal cavity and sinus ostial vetilation is not completley understood. To investigate this problem, experiments with delicate human sinus model have been perfomed. Material and method: The sinonasal model was constructed firm CT of a healthy young man. The oxygen saturation in the left maxillary sinus was investigated while a volunteer breaths through the corrugated tube connected to the nasopharynx of the model. We studied to get the numbers of respiration(RN95-25) by watching O_(2) saturation of the maxillary sinus from 95% to 25 % ( volunteer repeat 30 times to have O_(2) saturation down to minimize the error). Results: Increased sinus ventilation was recognized by the increasead nasal resistance while the ipsilateral anterior nare was obstructed(p<0.05). In nasopharyngeal obstruction model, we noticed respiratory rate was decreasead among the 20%, 40% and 60%, but increased at 80% in the nasopharyngeal obtruction model(p<0.05). Therefore the ventilation was increased up to the certain level of the nasopharyngeal obstruction, to follow by decreasing after that level. Conclusion: We observed the nasal resistance increased maxillary sinus ventilation without resistant stream pattern in the nasal cavity when anterior nare obstructed. To the contrary the nasopharyngeal resistance was increased at the beginning and then decreased by the increased air streams through the middle meatus after certain level. The results from our studies could be useful to understand the relations between structural alteration on naso-nasopharyngeal cavity and ventilation of the sinuses.

흰 쥐 모델에서 지연재식 시 dexamethasone과 OP-1의 표면처리가 치주조직 재생 및 항흡수 작용에 미치는 효과

권오택,금기연,이승종 대한치과보존학회 2001 Restorative Dentistry & Endodontics Vol.26 No.4

본 연구를 종합하면 통계학적인 유의차는 없었으나 OP-1에 비해서는 DEX로 처치한 군에서 더 많은 골유합이 나타났으며 고농도의 OP-1으로 처치한 군에서는 골유합 없이 치주재생이 일어나는 부위가 많이 관찰되었다. 그러나 차후에는 DEX나 OP-1이 치주조직 내의 어느 세포에 어떠한 기전으로 작용하는지 분자생물학적인 방법을 통하여 규명하고 이를 토대로 치주인대의 손상 후 야기되는 골성 유합을 줄이는 효과적인 치료약제나 방법을 개발하는 연구가 계속적으로 이루어져야 할 것으로 사료되며 6주 이상의 재식기간 후 각 약제의 조직학적 반응을 평가하기 위한 실험도 추가되어야 할 것으로 사료된다. 태생 40일 된 Spray-Dolwey계 흰 쥐의 상악 제1대구치를 발거하고 30분간 자연건조시킨 뒤 MB치근을 Caviton으로 근관충전하고 MB 치근표면에 DEX와 OP-1을 농도를 달리하여 도포한 후 재식하고 3주후 골 및 백악질의 재형성과 치주재생 및 치근 흡수 방지효과를 관찰한 결과 고농도의 OP-1이 조직학적인 관찰에서 치근흡수, 골성 유합 및 염증 정도에서 가장 우수한 결과를 보여주었고 치주 재생능력 면에서도 가장 뛰어난 것으로 나타났으나 추후에는 6주 이상의 장기관찰 후 각 약제의 조직학적 반응도를 평가하기 위한 실험이 추가되어야 할 것으로 사료된다.

한국産 황어의 종묘생산에 관한 연구 1. 産卵習性 및 初期生活史

조재권,오성현,노병율,한경호,성기백,박준택 麗水大學校 産業基術硏究所 1999 産業基術硏究所 論文集 Vol.8 No.-

강원도 양양군에 위치한 남대천과 전라남도 섬진강에 분포하고 있는 황어의 종료생산을 위한 기초자료로 産卵習性과 初期生活史에 관하여 관찰한 결과는 다음과 같다. 황어의 産卵期는 자연상태에서 3∼6月이고, 産卵은 흐르는 하천의 자갈 밑에 하였으며, 受精된 卵은 작은 자갈의 표면에 붙어있었다. 알의 크기는 2.70∼3.20㎜(평균 3.00㎜)로 油球는 없었다. 孵化는 평균 사육수온 10.60℃에서 受精 後 300시간부터 시작되었으며, 312시간만에 완료되었다. 孵化 直後의 仔魚는 전장 6.35∼6.87㎜(평균 10.67㎜)로 난황이 거의 흡수되어 後期仔魚期로 접어들며, 입과 항문이 열려있었다. 孵化 後 7∼9일째 後期仔魚는 전장 11.35∼12.30㎜(평균 11.65㎜)로 등지느러미가 생길 부분이 융기하기 시작하였다. 孵化 後 12∼13일째 개체는 전장 12.65∼13.15㎜(평균 12.80)로 이때부터 Daphnia sp.와 Brachionus plicatilis를 攝餌하였으며, 성장이 다소 빨라졌고, 脊索의 끝부분은 45°위로 굽어져 있었다. 孵化 後 43∼45일째의 개체는 전장이 19.55∼22.85㎜(평균 21.95㎜)로 모든 지느러미 줄기가 정수에 달하여 稚魚期로 이행하였다. 孵化 後 50∼52일째의 稚魚들은 전장이 21.54∼27.35㎜(평균 24.55㎜)로 몸의 형태, 체색 및 옆줄이 완전하게 형성되어 成魚에 닮아 있었다. The spawning behavior and early life history of sea rundace, Tribolodon hakonensis were studied. Spawning of T. hakonensis occurs enmasse on bottoms of stream with a spawning season of March to June. The eggs are attached to the under surface of the gravel. The eggs riped were demersal and adhesive, and their diameter were 2.70∼3.20㎜(mean 3.00㎜). Hatching was started at 300 hours after fertilization at mean water temperature 10.60℃. Newly-hatched larvae were 6.35∼6.87㎜ in total length(TL, Mean 6.65㎜), and mouth and anus were not yet opened. 4∼5 days old larvae transformed to postlarva stage and they were 10.25㎜∼11.15㎜ in TL (mean 10.67㎜). As yolk sac were nearly absorbed, mouth and anus were opened. In 7∼9 days after hatching, total length 11.35∼12.30㎜(mean 11.65㎜). The part of the fin-fold at dorsal fin became high. 12∼13 days old larvae were 12.65∼13.15㎜ in TL(mean 12.80㎜), and they fed Daphnia sp. and Brachionus plicatilis actively. In this time the growth rate slightly increased and tip of notocord was flesed on upward. Aggregate numbers of all fin rays were completed at over 19.55∼22.85㎜ in TL(43∼45 days after hatching), at which time the larvae reached the juvenile stage. 50∼52 days old larvae(21.54∼27.35㎜ in TL) were similar in body from, lateral line and color with adult.

수용성 Polymer-metal Complex의 형성과 중합 개시제로서의 활용성에 관한 연구(Ⅰ)

맹기석,송해영,권오승,황명천,황택성 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(B)

The formation of Water-Soluble Poly(Methacrylic acid) (PMA) and poly (acrylamide) (PAAm)-Cu(II) complexes was achieved at various PH. The structures and the optimum conditions for the formation of complexes have been determined through UV, IR and viscosity measurements. In addition, it was found that they can be used as an initiator for vinyl type monomers. Formed polymer-metal complexes are the most stable at around PH=7 and therefore give rise to maximum absorbance in UV spectrum. As PH is increased the conformation of polymer-metal complexes has become more compact. This can be explained in terms of decreasing viscosity with increasing PH. It was also observed that the function as an initiator of the polymer-metal complexes is very active at around PH=7 and the complexes can polymerize vinyl type monomers up to 10% Conversion. These results can explain the fact that the stable complexes were formed at around PH=7 and the formed complexes can be used as good initiators.

경희대학교 수원캠퍼스 노천극장 주변 공원 기본계획

김동찬,이윤수,권오원,민창기,김태현,박경모 경희대학교 디자인연구원 2004 예술· 디자인학연구 Vol.7 No.1

We, Kyung-hee University in Suwon has planned to build an open-air theater behind the building of natural science, and feel the need of creating places for cultural life and recreation. As the origin aim of this construction and landscape, university students can use this facilities and place for their daily relaxation and cultivation of emotion, and they also can utilize them for places of their meetings and events. Concerning the following completion of the UN Peace Park, our theater and the surrounding places will expectingly play important roles for the park because the open-air No-cheon theater is included in the full site of the UN Peace park. The focused elements of this basic plan are maintaining the basic plan of the UN Peace Park, forming the visually creative background, of the open-air theater cultural and recreational places, balancing and integrating human, nature, and the useful facilities.

횡문근융해증과 급성 신부전 및 범발성 혈관내 응고장애를 동반한 열사병 1예

최대은,박수진,권오경,이한규,이영모,이상주,나기량,이강욱,신영태 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Heat stroke is a life-threatening illness characterized by an elevated core body temperature that rises above 40% and central nervous system dysfunctions that results in delirium, convulsions, or coma. Heat stroke is subdivided into two forms, classic and exertional. Since strenuous exercise is one of the major exacerbating and precipitating factors, the incidence of exertional heat stroke is high among young adult, especially military personnel undergoing military training. Exertional heat stroke commonly causes rhabdomyolysis, lactic acidosis, acute renal failure, shock and pulmonary edema. We report a case of heat stroke with rhabdomyolysis, acute renal failure, disseminated intravascular coagulopathy(DIC) after strenuous exercise. A 18 year old man was admitted to the hospital because of loss of consciousness. He was a wrestler and he had tried to lose 6kg in weight by jogging and strenuous exercise on that summer day with hot temperature. The development of this illness was favoured by much clothes inappropriate for that environmental condition with a purpose to enhance sweating, and by restricted intake of water and food. On admission, the blood pressure was 80/50mmHg, and body temperature was 39.4℃ with stuporous mentality. Laboratory finding were as follows : in complete blood cell count, hemoglobin was 16.7g/dL and platelet count was 158,000/ mm³. In blood chemistry, AST 1061U/L, ALT 201U/L, BUN 30mg/dL, Cr 2.2mg/dL, LDH 941IU/L, CK 696IU/L were resulted. In arterial blood gas analysis, pH 7.39, pCO₂ 30mmHg pO₂ 86mmHg, HCO₃ 18.4mEq/L, O₂ saturation 96.7% were resulted. In urinalysis, specific gravity 1.025, protein 3+, erythrocyte 2+ were resulted. In brain imaging study, brain CT finding was normal. After appropriate treatments with rapid cooling, hydration and supportive care, he improved with alert mental status. On 2nd hospital day, in laboratory result, thrombocytopenia and coagulopathy were appeared and renal insufficiency was aggravated. So he was treated with platelet concentrate and fresh frosen plasma for DIC, and enough hydration for appropriate urine volume preservation. After all, On 22nd hospital day, he fully recovered and discharged. Nowadays, with followed for some duration, he is wellbeing with no complications.

엔진윤활유 중 Ethylene Glycol의 용제추출후 bistrimethylsilyltrifluoroacetamide(BSTFA)를 이용한 GC/MS 분석에 관한 연구

이준배(Joon-Bae Lee),권오성(O-Seong Kwon),유재훈(Jae-Hoon You),손성건(Shungkun Shon),성태명(Tae-Myung Sung),팽기정(Ki-Jung Paeng) 한국트라이볼로지학회 2012 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.28 No.6

For proper functioning, general machines usually need lubricant oil as a cooling, cleaning, and sealing agent at points of mechanical contact. The quality of lubricant oil can deteriorate during operation owing to various causes such as high temperature, combustion products and extraneous impurities. In this study, a heavy load stopped during operation, and the oil was analyzed to check whether any impurities were added. Extraction using acetonitrile followed by reaction with BSTFA(bistrimethylsilyl trifluoroacetamide) showed that, trimethylsilylated ethylene glycol was present in the lubricant oil. To quantify the ethylene glycol in the oil, deuterium-substituted ethylene glycol, which acted as an internal standard, was added to the sample and then extracted with the solvent. Next, the extract was reacted with the derivatizing agent(BSTFA) and then analyzed with GC/MS. The detection limit of this method was found to be 0.5 ㎍/g and the recovery of oil containing 20,000 ㎍/g of ethylene glycol was measured to be 94.8%. A damaged O-ring and eroded cylinder liner were found during the overhaul, which implied the leakage of coolant containing ethylene glycol into the lubricating system. The erosion of the cylinder liner was assumed to be due to cavitation of the coolant in the cooling system.

전두엽 상내측 신경교종의 수술 수 발생하는 운동보조영역 증후군

김재현,고영초,이채혁,권오기,최우진,박효일 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.2

Objective : This retrospective study was aimed to correlate characteristic neurologic deficits of transient contralateral motor weakness with or without speech disturbance(Supplementary Motor Area, SMA syndrome) after the resection of the gliomas in the superior frontal gyrus, especially with the extent of resection of the tumors. Method : Ten patients with medial superior frontal glioma, who underwent gross total or subtotal resection of the tumor, as well as, partial or complete resection of the spolementary motor area were studied. The following parameters were evaluate 1) tumor location 2) extent of resection 3) degree and duration of postoperative deficits. Result : Postoperative neurologic deficits were transient contralateral motor weakness with or without motor dysphasia. As a whole, postsurgical SMA syndrome occurred in 3 patients out of 10 patients with medial superior frontal gliomas(30%), who underwent gross total or subtotal resection of the tumors. Motor deficits were present in 3 out of 10 patients and speech disturbances in 2 out of 3 left frontal gliomas. Recovery of neurological dysfunction was rapid occurring between the 5th 14th POD and their neurological function returned almost normal in two patients. In the remaining one patient, who had preoperative mild motor weakness showed incomplete recovery of the worsened motor weakness and newly developed speech disturbance till 1yr postoperatively. Conclusion : The postsurgical SMA syndrome in patients with glioma in the medial superior frontal gyrus was not so uncommon phenomenon and well correlated with the extent of surgical resection of the supplementary motor area. Thus, preoperative awareness and warning about the possibility of the development of this charicteristic SMA syndrome is necessary.

측두엽 절제술후 포착으로 치료한 후대뇌동맥의 거대 방추상 동맥류 : 증례보고 Case Report

김명수,한대희,오창완,권오기 대한신경외과학회 1999 Journal of Korean neurosurgical society Vol.28 No.12