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황수연,이동직 경성대학교 2000 論文集 Vol.21 No.2
The secondary school equalization policy in Korea was initially adopted to curb excessive out-of-school studies of the junior and senior high school students. It failed to accomplish its goal in this regard, however Rather, that policy exacerbated the excessiveness of out-of-school studies. We explain why in this paper.
Rifampicin에 의한 것으로 추정되는 위막성 대장염1예
김수현,이은우,정종혁,문승현,김동한,양혁승,오영상,김호동,김도현,박혁,박정환,박경옥,이영직 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2
Pseudomembranous colitis, caused by altering the normal colonic flora and allowing the multiplication of Clostridium difficile, is an deleterious adverse effect of antibiotics. But it is rarely reported by rifampicin. Rifampicin is one of the first line drug in the treatment of tuberculosis and many patients are exposed to its potential adverse effects. We experienced a patient that had abdominal discomfort and hematochezia due to pseudomembranous colitis after receiving antituberculous medication, and which was probably caused by rifampicin. A 82 years old man was admitted with abdominal discomfort and hematochezia for one week. On the past history he had been diagnosed as endobronchial tuberculosis about 4 months ago. Colonoscopy revealed multiple discrete whitish mucosal lesion on rectosigmoid colon, and histologic findings were consistent with pseudomembranous colitis. The antituberculous agents were discontinued and vancomycin was administered. The patient's symptoms were resolved within several days. There was no recurrence after reinstitution of the antituberculous agents excluding rifampicin. We report here on a case of pseudomembranous colitis probably due to rifampicin.
大學生의 生活指導를 爲한 指導敎授 面談制度에 關한 硏究
孫直銖,韓德雄 성균관대학교 학생생활연구소 1975 學生指導硏究 Vol.2 No.1
Interview records, prepared by the professors through the individual interview with SKK students, were analyzed. The cummulative data from 1970 to 1974 were treated by the content analysis technique. The general problems to which most of the students had been confronted were interpreted and discussed. Most of the students were evaluated by the professors (interviewers) as having adjusted school life and satisfied with their scholastic major study (about 92%). The interview between the professors and the students was evaluated very effective for the adjustment to the college life and for the future goal setting. For the more effective administration of the interview system we offered the following 4 proposals: 1) To maintain the consistency of guidance for a student, it will be more effective to interview the same student by the same professor with whom the student was interviewed during the college years. 2) A few students, judged as maladjusted by the interviewer (professor) or the directer of the department, must be taken over th the guidance specialists (ie, counselor). 3) Interview record sheet can be revised for categorizing problem areas more properly for the systematized treatment. 4) The student problems on the scholastic performance must be treated more fully by the professors (interviewers) through interview processes.
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.
분산 슈퍼컴퓨팅 기술에 기반한 신약재창출 시뮬레이션 사례 연구
김직수(Jik-Soo Kim),노승우(Seungwoo Rho),이민호(Minho Lee),김서영(Seoyoung Kim),김상완(Sangwan Kim),황순욱(Soonwook Hwang) 한국정보과학회 2015 정보과학회논문지 Vol.42 No.1
본 논문에서는 대규모의 계산 작업을 고성능으로 처리해야 하는 신약재창출 시뮬레이션 분야에 분산 슈퍼컴퓨팅 기술을 적용한 사례에 대해 논의하고자 한다. 신약재창출이란 기존에 알려진 약물의 새로운 적응증을 규명하는 것을 의미하며, 이러한 신약재창출은 비교적 짧은 수행시간을 갖는 대규모의 도킹(docking) 연산들을 고성능으로 처리해야한다는 점에서 Many-Task Computing (MTC) 성격을 지니고 있다. 이러한 MTC 응용들의 대표 사례로서 신약재창출 시뮬레이션을 분산 슈퍼컴퓨팅 환경 기반의 HTCaaS 시스템에 적용하였으며, 이를 통해 효율적인 작업 배포, 동적인 자원 할당 및 로드 밸런싱, 안정성 및 다양한 자원들의 효율적인 통합 등이 이러한 과학 응용들을 지원하는 데 있어 필수적인 기능임을 확인할 수 있었다. In this paper, we present a case study for a drug repositioning simulation based on distributed supercomputing technology that requires highly efficient processing of large-scale computations. Drug repositioning is the application of known drugs and compounds to new indications (i.e., new diseases), and this process requires efficient processing of a large number of docking tasks with relatively short per-task execution times. This mechanism shows the main characteristics of a Many-Task Computing (MTC) application, and as a representative case of MTC applications, we have applied a drug repositioning simulation in our HTCaaS system which can leverage distributed supercomputing infrastructure, and show that efficient task dispatching, dynamic resource allocation and load balancing, reliability, and seamless integration of multiple computing resources are crucial to support these challenging scientific applications.
Effect of Plasma Pretreatment on the Structure and Emission Characteristics of Carbon Nanotubes
Hyung-Soo Uh,Euo Sik Cho,Jong Duk Lee,Sang Jik Kwon,Sang Sik Park,Seok-Rim Choi,Soo Myun Lee 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.43 No.51
Carbon nanotubes (CNTs) were grown on Ni-coated TiN/Si substrates by using microwave plasma chemical vapor deposition with a gas mixture of H2/CH4 at a low temperature of 500 C. The eect of H2-plasma pretreatment on the diameter of grown CNTs was investigated. We found that the average diameter of CNTs could be easily controlled by using the H2-plasma pretreatment time before CNTs growth and varied from 36 nm to 26 nm as the pretreatment time changed from 5 min to 15 min. However, any further increase in the pretreatment time gave rise to a rapid decrease in CNTs growth. After 25 min of the plasma pretreatment, scanning electron microscopy observation exhibited the destruction of the CNTs. The impact of the plasma pretreatment time on the emission behavior of CNTs was also investigated in a diode-type electron-emission conguration. The variation of the CNT diameter due to the plasma pretreatment caused a drastic change in emission properties. The turn-on voltages of CNT emitters varied from 3.5 V/m to 9 V/m, depending on the hydrogen-plasma pretreatment conditions. The close relationship between the electron-emission characteristics and the pretreatment time indicates that the pretreatment condition may be a key process parameter in CNTs growth for eld-emission displays and should be optimized.