OMT 모델을 기반으로 한 관계형 데이타베이스 설계 시스템의 구현

정헌석,이은경,임해철,김용환 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-

Database design is the base of the entire process related to the database, and the well-designed database schema has a great effect on the system performance. So, there's a growing need for the automatic schema generation system. In this paper, database design automation system is implemented which translates automatically OMT based database model to relational database table. For developing this system, transformation rules of OMT into RDB schema are suggested which satisfy normalization and integrity constraints. This automation system can be used efficiently in the area of training database system and applying database design in actual business fields.

經濟的 代理人으로서의 會計監査人에 대한 考察

鄭憲錫 誠信女子大學校 1986 硏究論文集 Vol.24 No.-

The owner of the firm hires an auditor as a second agent who is expected to attest to the assertions made by the manager of the firm, therby inducing the manager to report trvthfully to the owner. Thus, there arises an agency problem between the owner and the auditor similar to the one between the owner and the manager: how to motivate the rational auditor to deliver the contracted level of audit services where their services are not observable by the owner. Moral hazard problems can be arrisen on the auditor`s effort. Therefore, the pareto optimal contract between the principal and agent is then used to determine the form of the liability rule. Amajor factor influencing the incentives of the auditor in carrying out contracted tasks is the manner in which the legalsystem, a) decides if audit failure has occured and b) implements penalties. An auditor uses due care standard to avoid legal liability and chooses the optimal amount of care to maximize his expected utility. Areas of liability in auditing has been analyzed in terms of strict liability and negligence. While a strict liability system is one where the auditor is held liable for all losses without regard for his effort, a negligence system is one where the auditor is held liable if the court determines (on verification) that his effort level is lower than the due care standard. This paper attempted to present a simple model that can address the auditor`s liability problems under the two systems. But this model has some limitations because of tailing to consider the factors such as legal costs, independence, auditor`s reputation and insurance. Through a further study a more fine model inducing pareto optimal contract for the social welfare system should be developed.

强迫神經症의 精神治療에 對한 小考

鄭昌鎔,김상욱(?),姜錫憲,尹錫夏 大韓神經精神醫學會 1970 신경정신의학 Vol.9 No.1

1) From the authors' Psychotherapeutic experiences with obsessive neurotics Since 1964. they stressed the characteristic projection phenomena of inner feeling of dissatisfaction or disgust into alleged outer unfulfillment of performances in the repetitive and ritualistic activities of obsessive neurotics. 2) In the earlier phases of psychotherapy with obsessive neurotics, the authors' primary attention is focused on these projection phenomena with the aid of “logical dialogue”which is characterized by therapists' logical attacks at pseudological defensive operations of obsessive neurotics. 3) With these rather half-directed methods, the authors felt the psychotherapists could save much of unnecessary introductory plases of psychotherapy with obsessive neurotics.

2-Deoxy-D-Glucose에 의한 대사성 쇼크가 무우스의 면역 반응에 미치는 영향

김양숙,장선일,박래길,조성경,정헌택 최신의학사 1991 最新醫學 Vol.34 No.2

부비동 내시경 재수술 환자에서의 전산화 단층촬영 소견

정승규,하병석,동헌종 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.10

갑상선 기능항진증에 병발된 주기성 마비 3예

최지훈,최경숙,김기훈,박병현,조정구 圓光大學校 醫科學硏究所 2001 圓光醫科學 Vol.16 No.1-2

Thyrotoxic periodic paralysis is characterized by intermittent flaccid paralysis of skeletal muscle, lasting several hours. The underlying pathophysiology of the syndrome is not yet to be well characterized and remains controversal, but reflects altered potassium and calcium dynamics as well as certain morphologic characteristics within the muscle unit itself. It occurs primarily in Asian populations with an overwhelming male preponderance and a higher association of specific HLA antigens. Precipitating factors include high carbohydrate ingestion, exercise, trauma, infection, alcohol ingestion, administration of epinephrine, thyroid hormone, or corticosteroid. If hypokalemia is present, potassium administration may help abort the attack, but the only definitive treatment is formation of euthyroid state. We discribed two patients with hypokalemic thyrotoxic periodic paralysis and one patient with normokalemic thyrotoxic periodic paralysis.

분절 광배근 유리피판의 유용성

이훈범,김석원,정윤규,박윤규 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.5

Since the first report by Tansini in 1896, the latissimus dorsi muscle free flap has been widely used for various types of soft tissue defect due to reliable anatomy with a sufficient diameter of neurovascular pedicle and a sizable muscle. However, for relatively small soft tissue defect, latissimus dorsi free flap offers several distinct disadvantages of donor site including loss of the posterior axillary fold and flattening of the posterolateral chest wall, weakness of upper arm strength in extension, adduction and internal rotation. We treated three patients having various types of soft tissue defect using segmental latissimus dorsi muscular free flap depending on its descending branch of thoracodorsal neurovascular pedicles. There were no serious complications during 18 months of mean follow-up. We concluded that this method has some advantages such as no weakness of strength of the upper arm including walking on crutches, preserving the posterior axillary fold, preventing winging of the scapula and increased chance of using a flow-through technique. Here we present our cases of reconstruction of soft tissue defect using segmental latissimus dorsi free flap with a review of the literature.

임신 7 개월 이후 임산부 보행의 역학적 분석

금명숙,유실,김영란,정남주,한윤수,이훈표,윤희중 한국운동역학회 2002 한국운동역학회지 Vol.12 No.1

The purpose of this study was analyzed the effect of kinematical and kinetical factors of lower extremity of form change in the cause of growth an unborn child during in pregnancy. Three pregnant women were selected from pregnant 24 weeks as subjects. Each subjects were required to walk with usual walking speed. Cinematographic and GRF data were collected during walking, and the kinematical and kinetical variables were calculated using Kwon3d. Based on the results of the study, the following conclusions were drawn : 1. Step width and Step length Step width according to the period of pregnancy was gradually small but step length was gadually great. 2. Angle of lower extremity The angle of hip, knee and ankle was differed pregnancy on 9 month and other time. 3. Ground reaction force In the three part of ground reaction force, pregnancy on 9 month was most greater than other time.

인천교육대학교 과학ㆍ수학 영재 캠프의 운영에 관한 기초 연구

송상헌,정동권,강호감,여상인,노석구 인천교육대학교 과학교육연구소 2003 과학교육논총 Vol.15 No.-

경기도와 인천시의 초등교사 양성을 책임지고 있는 인천교육대학교의 입장에서는 경기·인천지역의 초등 과학과 수학분야의 영재교육 프로그램을 경험하려는 학생들에게 기대와 요구를 충족시켜 줄 책임과 의무가 있다. 이에 인천교육대학교에서는 과학교육연구소가 중심이 되어 영재교육연구원이나 영재교육원을 설치하기 위한 장기적인 목표 하에 과학·수학 영재교육을 실시할 수 있는 실제적인 방안을 모색할 필요성에 따라, 우선 실험적으로 캠프 형식의 운영을 실험해 보았다. 본 연구는 이러한 구체적인 현장 사례연구를 바탕으로 인천교육대학교에서 주관하는 영재교육추진 기본 계획 수립을 위한 초등 과학·수학분야 영재교육 프로그램의 운영 모델과 그것의 실천에 필요한 장기적인 전망을 제안한다. 캠프에서 운영할 수 있는 프로그램의 성격은 심화형의 다 주제 탐구형으로 진행하면서 다양한 교과나 체험을 위주로 한 내용과 형식을 갖출 것을 권장한다. 영재캠프에 참가할 수 있는 자격 조건과 선발 기준은 운영하고자 하는 프로그램의 내용과 성격에 가장 부합하도록 특성화되어야 하고, 캠프에 참가한 학생들에 대한 지속적인 사후 관리가 필요하다. 지속적인 교육과 운영을 위해서는 장기적인 연구 계획 및 예산 수립이 필요하며, 각 교과의 전문가들과 보다 장기적인 공동연구를 수행해야만 한다. 그러면서 영재교육연구원이나 영재교육원의 운영을 목표로 영재교사 양성을 위한 직무연수 프로그램이나 부설 사회교육원의 프로그램을 통해 학부모 교실을 운영할 수 있음도 제안한다. This is a basic study on the science and math camp program for the gifted and talented children in science and mathematics. We organized and managed empirical camp twice for 2 years. From those experiences, we proposed a sample model to manage good camp and a long term vision. This is the result of the basic study on the management of the science and mathematics camp program in Inchon National University of Education.

화학양론 조성 Mullite 의 합성과 그 소결특성

안석헌,정윤중,염희남,이종민 明知大學校 産業技術硏究所 1991 産業技術硏究所論文集 Vol.10 No.-

Stoichiometric mullite powder was prepared with Al(OH)₃, which was synthesized from Al₂(SO₄)₃·18H₂O and SiO₂, which was hydrolysised from TEOS(Al₂O₃:SiO₂=3 : 2 mole%), the sintered body of only mullite and the Y₂O₃ added mullite body were prepared and it's properties were detected. The results are follows. Crystalized mullite begins to founded from 1200 calaination and Well-Crystalzed mullite forms from the calcination temperature, 1300℃ . Crystal grains of mullite is accicular, and its relative density and bending strength of mullite ceramics which is sintered at 1650℃ are 92% and 180Mpa, respectively. As Y₂O₃ addtion the bending strength can be increased to 220MPa, because Y₂O₃ distribute and fill the vacancies of accicular mullite grain boundaries.