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오상록,이갑조,김종관 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
The dimensions and forms of precise machined parts are different to kinds of machine. It will be variant according to machine wear, tool form, cutting method and cutting condition at the same machine. At that time, the most important things are controlled and measured by appropriate measuring instruments. This paper aims to contribute to improving measurement accuracy through evaluation and consideration about various roundness in the machining company.
오연희,이창욱,김승현,이성우,정병욱,이준희,박동일,권영무,신현종 동국대학교 경주대학 1996 東國論集 Vol.15 No.-
Morgagni 탈장은 횡격막의 전내측 부위의 발달이상으로 열공을 통하여 장관이나 대망과 같은 복강내 구조물이 흉곽내로 빠져나가는 드문 질환으로 알려져 있다. 저자들은 호흡곤란을 주소로 내원하여 방사선학적 검사와 수술로 확진된 1례를 보고한다. Morgagni hernia is improperly located abdominal viscera into the thoracic cavity through the foramen of Morgagni which is a congenital defect at the anterornedial portion of diaphragm. We report a case of Morgagni hernia diagnosed by radiologic examination and operation.
오영상,이은우,정종혁,문승원,김수현,김동한,양혁승,박정환,박경옥,강성수,이영직 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2
Tracheobronchopathia osteoplastica is a rare disorder of unknown cause characterized by the projection of numerous bony or cartilaginous submucosal nodules into the tracheobronchial lumen with sparing of the posterior membranous portion of tracheobronchial tree. In the past, most of the cases were diagnosed as secondary finding at autopsy. Nowaday, the key component of the evaluation is flexible fiberoptic laryngoscopy and bronchoscopy, which typically demonstrates irregular spicules of subrnucosal bone and cartilage projecting into the tracheobronchial lumen and causing various degrees of airway obstruction. A 45 years old man was visited Sunchon St. Carollo hospital due to discomfort on throat. We saw several nodules just below vocal cord via laryngoscope. The computed tomography revealed multiple small calcified nqdules on trachea and both main bronchi. Pathologic finding of bronchoscopic biopsy showed abnormal proliferation of bony and cartilagious nodules in the tracheal submucosa. These fingdings were consistent with tracheobronchopathia osteoplastica. We report here on a case of tracheobronchopathia osteoplastica with review of literature.
이휘종,최원영,김상열,서종호,황정동,오성환,정진교,김주일,구현나,김길하 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2
Occurrence of three troublesome lepidopterous pests, Ostrinia furnacalis, Helicoverpa armigera and Pseudaletia separata in corn cultivation of the reclaimed land were recorded using sex pheromone traps from 2012 to 2014. In case of O. furnacalis adult, two generations were observed in a year and its occurrence pattern was very regular. The 1st generation showed the highest occurrence in late May-early June and the 2nd generation was in late July-early August. On the other hand, H. armigera occurred at least three times a year but its occurrence was somewhat irregular. H. armigera adult showed the highest occurrence in mid May, late June, early August, respectively in 2012 but their occurrence patterns of the 2nd and 3rd generations were varied in 2013 and 2014. In case of P. separata, a few number of adult were captured during the survey period, indicating few number of P. separata migrated from China. Based on the control effect of O. furnacalis by Etofenprox and Carbofuranin 2012, June 26 treatment showed the highest control rate with 96.8% for Etofenprox, 85.8% for Carbofuran, respectively. Late treatment at June 19 and June 26 significantly decreased the control rate of O. furnacalis and June 26 treatment showed the lowest control rate of 1.9% for Etofenprox. 18.1% for Carbofuran, respectively.
trans-Fluoroaquobis (ethylendiamine) Chromate(III) Cation 수화반응 속도에 대한 온도와 압력의 영향
吳相牛,李相協,林鍾完 慶北大學校 物理化學硏究所 1986 硏究論文集 Vol.7 No.-
착물 trans-〔Cr(en)_2F(H_2O)〕^2+의 hydrolysis에 대한 속도상수를 분광광도법으로 여러가지 온도와 압력에서 측정하였다. 온도 범위는 30℃에서 50℃까지이고 압력은 1 bar에서 1500bar까지 변화시켰다. 1bar, 30℃에서 측정된 속도상수는 2.632×10 exp(-5)sec^-1였다. 속도상수는 일정온도에서 압력이 증가함에 따라 감소하였다. 활성화 부피와 다른 활성화 파라미터들은 이러한 속도상수로 부터 계산되었다. 활성화 부피는 모두 양의값을 가졌으며 0.477에서 3.152㎤/mol내에 있고, 활성화 엔트로피는 작은 값을 가진다. 이 반응은 흡열반응이고, 실험적인 온도에서 엔탈피 지배반응이다. The rates of hydrolysis of the complex, trans-〔Cr(en)_2F(H_2O)〕2^-1, have been investigated using spectrophotometric method at various temperatures and pressure. Temperature was 30℃ to 50℃ and pressure was varied up to 1500bar. The rate constant measured at 30℃ is 2.632×10 exp(-5)sec^-1. The rate constants are decrease with increasing pressure at constants temperature. Activation volume and other activation parameters are calculated from these rate constants. The activation volumes are all positive and lie in the limited range 0.447∼3.152㎤/mol and the activation entropies are small values. From the results, it was found that this reaction was endothermic and enthalpy controlled reaction in the experimental temperature.
고구배자기 분리기를 이용한 폐수처리와 자원 재활용에 관한 연구
오상오,김창수,이종달 慶北大學校 1979 論文集 Vol.27 No.-
In the application of magnetic separation procedures, ferrite and δ-FeOOH particles are proposed as magnetic seeding materials to remove many metal ions from waste water. New style of high gradient magnetic separation apparatus were prepared and obtained with good efficiency for removing the heavy metal ion from waste water. A mechanism for removing the heavy metal from the waste water has heen proposed to substitute iron ion of ferrite or δ-FeOOH for the other metal ion.
오상철,김영호,현종익 濟州敎育大學 科學敎育硏究所 1983 科學敎育硏究誌 Vol.7 No.-
This is a study to develop the obervations and experimental materials for the elementary school 4th.5th.6th grade science curriculum that are carried on effect from this year. The materials which teachers do and the teachers and students can make, by themselves, are as follows: 1) In the field of biology for 4th.5th and 6th grade, 11 kinds of plant observating materials were cultivated. 2) In physics field of sixth units in the text book for 4th.5th and 6th grade, 10 kinds of implements were developed: electric circuit, moving of heat, expansion of heat and body, solute, movement of Earth and Moon, eaergy of Water and Wind.
두부외상으로 인한 기질성 정신장애 환자 자료의 K-WAIS 요인분석
오상우,김홍곤,강종구 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.5
본 연구는 두부 외상후 기질성 정신장애로 진단된 환자의 자료를 토대로 K-WAIS의 요인구조를 탐색해 보았다. 연구 대상자는 17세에서 72세의 남녀 138명으로, 8개월 동안 호남지역에 소재하고 있는 대학병원 신경정신과와 정신과병원에 내원한 두부 외상으로 인한 기질성 정신장애 환자들이었다. 자료분석은 주성분분석모형을 이용하여 요인분석을 하였다. 기초구조 계산법으로는 주축분해법을 사용하였고, 기초구조에 대한 회전방법으로는 직각회전방식을 사용하였다. K-WAIS의 요인구조를 알아본 결과, 두부 외상후 기질성 정신장애로 진단된 환자집단에서는 2개 요인(언어적 이해력 요인과 지각적 조직화 요인)이 추출되었는데, 이 들 2개 요인들의 전체변량은 73.7%이었다. 언어적 이해력 요인은 어휘문제, 이해문제, 산수문제, 기본지식문제, 공통성문제, 숫자외우기로 구성되어 있었으며 전체변량의 62.0%를 설명하고 있었다. 지각적 조직화요인은 동작성검사에 속하는 모양맞추기, 차례맞추기, 토막짜기, 바꿔쓰기, 빠진곳 찾기 소검사로 구성되어 있었으며, 전체 변량의 11.7%를 설명하고 있었다. 본 연구에서 밝혀진 K-WAIS의 요인구조는 두부외상후 정신장애로 진단된 환자의 K-WAIS 자료를 임상적으로 해석할 때 중요한 의의를 지닌다고 볼 수 있을 뿐만 아니라, K-WAIS 단축형을 제작할 때 기초자료가 될 것으로 생각한다. Objectives : The purpose of this study was to investigate the factor structure of the K-WAIS. Methods : The sample was consisted of 138 patients with organic mental disorder due to head trauma. A principal component analysis was used worth varimax rotation. Results : Two factors in a sample patients with organic mental disorder due to head trauma were abstracted from the K-WAIS by factor analysis. Variance of the two factors was 73.3%. And variance of factor 1(verbal comprehension) factor 2(perceptual organization) were 62.0% and 11.7%, respectively. Conclusion : Two factors in a sample patients with organic mental disorder due to head trauma were abstracted from the K-WAIS using the principal component analysis by varimax rotation.