가연사에서 광학 현미경을 이용한 겉보기 접촉각 측정

오동원,이광배 한국섬유공학회 1997 한국섬유공학회지 Vol.34 No.12

To evaluate comfort factors of the fabrics, yarn contact angles have been measured. The measurement was made by using a microscope attached with a newly developed specimen mounting device. Variables examined in the experiment were fiber type, yarn twist level, and fluid type. All produced a significant effect on the contact angle of twisted yarn, and the results could be rationalized on the basis of the known concepts related to the contact angle with fibrous materials. The methodology used and the results obtained were discussed in detail.

구성사의 구조적 인자가 편성물의 쾌적성능에 미치는 영향

오동원,정성훈,주창환,홍철재 한국섬유공학회 1998 한국섬유공학회지 Vol.35 No.12

The effect of structural factors on the comfortabilities of knit fabrics has been studied to provide an information on structural design of knit-wears used specially for summer. To improve the comfortabilities, the fabric should absorb the sweat exuded from human body and give it out rapidly, and also have a good moisture permeability. To measure these properties, simple testing devices were newly designed and built. The structural variables considered in the experiment were fiber type, the blend ratio of fibers, and the twist level of yarn. All the variables gave a significant effect, which could be objectively evaluated based on the theoretical model introduced.

만성 내과질환자의 불안과 우울에 관한 연구

오동원 高神大學 醫學部 1990 高神大學醫學部 論文集 Vol.6 No.1

만성 내과질환자의 불안과 우울에 관한 연구

오동원 고신대학교(의대) 고신대학교 의과대학 학술지 1990 고신대학교 의과대학 학술지 Vol.6 No.1

The author studied the emotional status, especially, anxiety and depression and their influential factors of the hospitalized chronic medical patients by means of the semistructured interview and psychological tests(SAS, BDI, MMPI). The results were as follows. 1. Among the total 88 inpatients, considerable anxiety was noticed in 47.7% of them by SAS and depression in 47.7% by BDI and 50% by MMPI. 2. There were statistically no differences of emotional status in the sex, age and educational level. 3. The anxiety and depression scores of the protestant, the catholic and the other religious group were lower than that of the buddist(p<0.05). 4. The divorced were more anxious and depressed than the marned and unmarned.(p<0.05) 5. The chronic renal failure patients were more anxious and depressed than the other chronic medical patients(p<0.05). 6. The patients who had been recurred, and had positive family history, and had other physical disease were more anxious and depressed than those who had not(p<0.01, p<0.01, p<0.05). 7. Anxiety and depression of the chronic medical patients were positively correlated each other : the more anxious the patients, the more depressed and vice versa.

[1.1.1]Propellane과 Carbene(:CH_2,:CBr_2)의 反應

吳東元,李愚鵬 경북대학교 과학교육연구소 1994 科學敎育硏究誌 Vol.18 No.-

In [1.1.1] propellane, the internal C-C bond have sp^2 character, as well as the charge distribution was the high local charge density near the bridgehead carbone. We tried to react carbene (: CH_2, : CBr_2) to [1.1.1] Propellane in ether. The reaction of 1,1-dibromo-2,2-bis (chloromethyl)cyclopropane with methyllithium in eter led to a solution of [1.1.1]propelane in a yield of 70%. In the case of starting matieal with high yield. We have isolated through the crystallization at the low temperature. instead of the vaccum distillation. The product of addition reaction which react dibromocarbene with [1.1.1] propellane was 1,1-dibromo-1,4-dimethylenecyclobutane. The reaction of [1.1.1] propellane with diazomethane in photolysis produced 1,3-dimethylenecyclobutane, [1.1.1.1] paddlane and 1-methylbicyclo [1.1.1] prentane. These products were separated by preparative-GC and characterized ^1H-NMR, GC-MS, ^13C-NMR

고효율 색 변환 물질의 합성과 특성 연구

오동원,이우붕,김홍탁,이형락,이성엽 한국물리학회 2017 New Physics: Sae Mulli Vol.67 No.3

본 연구에서는 청색 빛을 흡수하여 자체 발광을 통해 높은 효율로 녹색 빛을 방출시킬 수 있는 새로운 발광 고분자인 Alkylfluorene-Thiophene-Benzothadiazol 공중합체를 스즈키 반응법 (Suzuki coupling reaction)을 이용해 합성하였다. 그리고 이 고분자의 물리적 특성을 조사하고, 색 변환 물질로의 적용 가능성에 대한 연구를 수행하였다. 본 연구에서 합성된 발광 고분자는 높은 열적 안정성과 우수한 색 변환 능력을 나타냈다. 색 변환 필름은 스크린 프린팅법을 이용해 제조하였고, 색 변환 특성은 여러 종류의 청색 디바이스 위에 제조된 색 변환 필름을 올려놓은 후 휘도계를 이용해 측정하였다. 색 변환 필름은 541 nm의 최대 발광 파장을 보여주고, 밴드갭이 약 2.46 eV로 확인되었다. 색 변환 필름을 청색 발광 소자 위에 올렸을 경우에 휘도는 908 cd/m$^2$로 색 변환 필름이 없는 경우 (251 cd/m$^2$)보다 약 262% 더 높게 나타났다. 또한 색좌표는 (0.285, 0.645)로 측정되어 녹색으로 색 변환되었음을 확인하였다. 이러한 결과로부터 합성된 발광 고분자는 기존의 선택적으로 빛을 흡수하는 컬러 필터와는 달리 백라이트로부터 나오는 청색광을 흡수하여 발광하는 형태의 새로운 색 변환 소자로 적용할 수 있음을 확인하였다. A new photoluminescent polymer [alkylfluorene-thiophene-benzothiadiazole copolymer], which can convert blue into green light with high efficiency, was synthesized by using a Suzuki coupling reaction, and its physical properties were studied. The applicability of the synthesized polymer as a color-conversion material was also examined. The synthesized polymer showed good thermal stability and superior color-conversion ability. The maximum emission band was at 547 nm, and the optical band gap was approximately 2.46 eV. A color-conversion film was fabricated using a screen-printing method, and its optical properties were analyzed using a luminance meter after having placed the fabricated color-conversion film on top of the blue-light-emiting device. The measured brightness was 908 cd/m$^2$, which was approximately 226% higher than that measured for the device without a color-conversion film (251 cd/m$^2$). The CIE coordinates were (0.285, 0.645).

혈청 Lithium농도와 타액 Lithium농도의 상관성

오동원 大韓神經精神醫學會 1988 신경정신의학 Vol.27 No.5

Serum and salivary lithium concentrations were measured by atomic absorption spectrophotomerter and both concentration rates were compared for the trial of possible clinical usage of saliva concentration of lithium. The subjects were 27 hospitalized psychotics who had been given fixed dose of lithum over 2 weeks continuously. Salivary gland stimulation was performed with chewing gum. The statistically significant correlation between serum lithium concentration and salivary lithium concentration could be proved using the Student's t-test(r=0.767, p<0.0001). From this study, possibility of clinical usage of saliva concentration for lithium mointoring was suggested.

만성 내과질환자의 불안과 우울에 관한 연구

오동원 고신대학교 의학부 1990 高神大學校 醫學部 論文集 Vol.6 No.1

The author studied the emotional status, especially, anxiety and depression and their influential factors of the hospitalized chronic medical patients by means of the semistructured interview and psychological tests(SAS, BDI, MMPI) The results were as follows. 1. Among the total 88 inpatients, considerable anxiety was noticed in 47.7% of them by SAS and depression in 47.7% by BDI and 50% by MMPI 2. There were statistically no differences of emotional status in the sex, age and educational level. 3 The anxiety and depression scores of the protestant, the catholic and the other religious group were lower than that of the buddist(p< 0 05). 4 The divorced were more anxious and depressed than the married and unmarried(p< 0 05) 5. The chronic renal failure patients were more anxious and depressed than the other chronic medical patients(p<0 05) 6. The patients who had been recurred, and had positive family history, and had other physical disease were more anxious and depressed than those who had not(p<0 01, p<0 01, p<0 05). 7. Anxiety and depression of the chronic medical patients were positively correlated each other : the more anxious the patients, the more depressed and vice versa.

입원중인 만성 정신분열병 환자의 항정신병약물에 대한 개념 및 태도 조사

오동원,최용성,한진희 대한신경정신의학회 1986 신경정신의학 Vol.25 No.4

Using self-report questionaire composed of 30 pertinent items, the concept and attitude of the schizophrenics toward antipsychotic medication was investigated. The subjects were 188 chronic schizophrenic inpatients in Seoul National Mental Hospital during the time from Aug. 5 to aug. 12, 1985. The significant results were as follows. 1) 53.1% of the subjects responded as ’drug can help improve their illness’, but only 25.5% of them reported to take drug voluntarily. 2) Regarding to the greatest benefits of antipsychotics, ,to improve insomnia’ was the most popular response (38.7%). 3.) More than 80% of the subjects had some experiences of unwillingness to take drug’, which was mainly accounted by ’unpleasant side effects’ (41.5%), and 15.4% of the patients had actully one or more experiences of surreptitious evasion during the current hospitalization* 4) 45.8% of the subjects reported that antipsychotics might have habituation potential and 57.4% reported that drugs would have adverse effects on the body: 5) Only about a half of subjects accepted the necessity of drug-continuation ordered by doctor after discharge, and 40.6% of subjects responded that pharmacotherapy was better than other therapeutic modilities in the treatment of their illness. 6) It was reported that the most unpleasant side effect of antipsychotics was weakness, followed by akathisia and constipation. 7) Demographic variables (i.e. sex, education, duration of illness, number og previous admission) were compared in the two groups using x 2-test. The statistically significant results were as follows. (1) Three subitems, Le., even harmfuT (the concept on the value of antipsychotics), Recommended by family members’ (the attitude toward drug-taking), and faith cure, (the proposed treatment method better than pharmacotherapy) were to be rated higher in the low education group as compared with those in the high education group. (2) The high education group responded more to ‘doctor,from proposed main consultant in the decision of drug discontinuation than the low education group. (3) The rates of high,regarding to the concept of the habituation potential of antipsychotics were higher in the group of long (VS. Short) duration of illness and in the group of large (VS. Small) number of previous admission, contrasted to the findings that the higher rates of 1 to 3years’ over th concept of the required duration of drug continuation after discharge in the group of short (VS. long) duration of illness. (4) As to the proposed motivation of drug taking, in the case of drug continuation after discharge, rates of ‘to gain further improvement, were higher in the male patients than in the female ones.

藥物治療 經過에 따른 꿈變形

吳東遠,李竹內 성분도병원 1996 성분도병원논문집 Vol.4 No.-