자가면역간염의 진단적 접근

임기영,박정길 대한내과학회 2022 대한내과학회지 Vol.97 No.1

Autoimmune hepatitis (AIH) is a chronic liver disease caused by unknown etiology, characterized by elevated liver enzyme, hypergammaglobulinemia, circulating autoantibodies, and histological interface hepatitis. As untreated AIH often leads to decompensated cirrhosis and even death, prompt and timely diagnosis is essential. However, about 1/3 of patients with AIH have cirrhosis at diagnosis. On the other hand, new onset acute or acute exacerbation of previous undiagnosed AIH can be presented as acute hepatitis. Thus, any patients with acute or chronic liver disease with hypergammagloblinemia without other cause should be considered to evaluate circulating non-organ specific autoantibodies for diagnosis of AIH. In case of suspected AIH, liver biopsy should be considered to evaluate its histological characteristics including interface hepatitis, plasma cell infiltration, emperipolesis, and rosettes. When the diagnosis is made, prompt treatment with prednisolone followed by combined azathioprine should be considered to improve its prognosis.

백서의 임의형 피부판 생존에 대한 Nicardipine, Nitroprusside 및 Enalapril의 효과

이삼용,김병삼,조백현,김한용,임기영 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.6

The prevention of necrosis of skin flaps is very important in clinical plastic and reconstructive surgery. Numerous techniques and drugs have been used in attempt to increase the survival of the flap. The vascular physiology and mechanism of "delay" in a flap-how to prevent necrosis-are not still understood, but many experiments on random patern skin flaps ave suggested various hypotheses. Ischemia has been implicated as a critical factor in some studies. Others studies suggest that sympathectomy during a surgical delay in random pattern flaps is the crucial factor, and that denervation supersensitivity of arteriovenous shunts accounts for the delay phenomenon. We suggest that vascular smooth muscle relaxation is the vascular mechanism that accounts for the delay phenomenon. Effect of nicardipine (calcium antagonist), nitroprusside (direct vasodilator) and enelapril (angiotension converting enzyme inhibitor) on survival of skin flap were investigated in Sprague-Dawley rats. The mean surviving areas of the skin flap in all experimental groups were significantly greater than in the control group. The mean survival area of skin flap in enalapril+nicarkipine group was significantly greater than in single drug treated group. We conclude that sustained vasodilation by drugs increases the survival area of the skin flap.

LP-MOCVD 방법으로 성장한 InGa As/GaAs의 DCXD에 의한 조성과 임계두께에 관한 연구

정양준,차상석,임기영 木浦大學校 基礎科學硏究所 1994 基礎科學硏究誌 Vol.12 No.-

We have grown InGaAs single layers on GaAs by LP-MOCVD(Low Pressure Metal-Organic Chemical Vapor Deposition) method. We have investigated the lattice constants, strain relaxation, and critical layer thickness of a ?? layer by double crystal x-ray diffraction. The correlation between the In composition in epitaxial ?? and In gas composition was determined by rocking curve analyses. The critical layer thickness and In composition were determined to be 600Å for 0.115 and 400 Å for 0.183, respectively, assuming that the In gas compositions are 0.150 and 0.243. Beyond the critical layer thickness the transition from the strained to the relaxed state occurs more rapidly as the thickness increases.

퍼지 관계형 지식베이스 시스템에 관한 연구

임기영 大田産業大學校 1994 한밭대학교 논문집 Vol.11 No.0201

액체 Silicone과 Paraffin의 주입후 나타난 색전현상의 증례

곽승호,이삼용,조백현,임기영 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.5

The infection of liquid silicone or paraffin for cosmetic purposes has been an unfavorable method with such complications as development of granulomas, migration of the foreign body, inflammation, ulceration, embolic phenomena and etc. However, these materials have been used by some unauthorized people for augmentation os the soft tissue in such areas as the face and breasts for they can easily transform the body contour in a short period and are inexpensive to do so,. We experienced the unusual cases of visual loss and respiratory difficulty after injection of liquid silicone or paraffin subcutaneously in the face and chest. Three patients lost their vision immedately after injection of these materials in the face, and one patient underwent respiratory difficulty following injection of liquid silicone in the chest. Among the three facial cases, one was observed without treatment, the other was treated by secondary intention with antibiotics, and the third case was operated on to remove the foreign body from the nose. The saddle nose deformity after removal of nasal foreign body was treated by means of insertion temporalis fascia-wrapped silastic implant. Visual loss was irreversible. Dyspnea of the chest case disappeared after two weeks of steroid therapy. The cause of these disastrous complications was believed to be occlusion of vessels with the emboli inadvertently injected into the vascular channel.

Pulse도금법에 의한 Ag주입 양극산화 알루미늄 합금의 항균특성에 관한 기초연구

임기영,기준서,장용석,이우민,윤정모,Lim, Ki-Young,Ki, Joon-Seo,Jang, Yong-Seok,Lee, Woo-Min,Yoon, Jeong-Mo 한국재료학회 2006 한국재료학회지 Vol.16 No.10

Over the last two decades, microbiologically influenced corrosion (MIC) of metallic materials has received considerable attention due to its serious effects on industrial field. In this context, it is important to devise control methods which inhibit biofilm formation on various metallic compounds and are compatible with environment. It was change of various conditions (duty cycle, current density, $AgNO_3$ concentration and pH) for injection of Ag particles in anodized Aluminum alloy pore using pulsed current. Optimal condition was obtained by means of FE-SEM, ICP analysis etc. The antibacterial metal's specimen were manufactured under optimal condition and this specimen were tested the antibacterial characterization and anticorrosion characterization. In result of test, we can confirmed that the antibacterial characterization and anticorrosion characterization of the specimens of injected Ag particles in anodized Aluminum alloy pore using pulsed current were better than the anodized Aluminum alloy specimens.

지능형 토큰버스망 통신 제어기의 설계에 관한 연구

林岐榮 大田産業大學校 1993 한밭대학교 논문집 Vol.10 No.1

AbstractIn this paper presented An Intelligent Token bus network communication controller. An Intelligent Token bus network controller is designed to be accessible directly to the common memory in the host's memory space so that a communication exeuctive to provide a real time multitasking environment.The primary feature of this an Intelligent Token Bus network controller is that the 2+1/2 bus architecture designed to support high speed parallel processing capability. In this paper presented An Intelligent Token bus network communication controller. An Intelligent Token bus network controller is designed to be accessible directly to the common memory in the host's memory space so that a communication exeuctive to provide a real time multitasking environment. The primary feature of this an Intelligent Token Bus network controller is that the 2+1/2 bus architecture designed to support high speed parallel processing capability.

지식습득시스템 평가에 관한 연구

林岐榮 大田産業大學校 1995 한밭대학교 논문집 Vol.12 No.1

We shall first briefy introduce PCP method and then Propose a new knowledge acqusition method we proposed seven criteria which can be used to evaluate acqusition method. 1) Can it guide experts to provide domain expertise? 2) Does it ask only what it should ask? 3) Can it describe exactly what the expert is thinking 4) Can it automatically classify all of the elements obtained from the expert? 5) Can it learn implication knowledge from the facts provided by experts? 6) Are the query user type elements acquirable? 7) How can do it automatically without debugging a table based knowledge acquisition method provides letter results than PCP(personal construct psychology) according to our seven criterla

분산처리를 위한 P.C network system 구성

임기영 건국대학교 1991 대학원 학술논문집 Vol.33 No.-

The distributed system have more benefit than single concentrate system. Therefore, P.C operating single task method not to operate is designed to function process management and interprocess communication functionary by designing the system program "C" to operate distributed processing those two function to add PC operating system (MS-DOS) is designed to PC network system to communicate among the users and to exchange the message and resource sharing.

한국의 의료 상황과 프로페셔널리즘 교육

임기영 한국의학교육학회 2007 Korean journal of medical education Vol.19 No.4