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유전알고리즘을 이용한 모델추종형 PID 제어기 설계에 관한 연구
김문수,원태현,송달섭,이오걸 동의공업대학 1998 論文集 Vol.24 No.1
The aim of this paper is to suggest a design method for the model following PID control system using genetic algorithm. A Genetic algorithm is used to optimize the coefficients of a PID controller. By applying this method to the DC servo motor, the simulation results indicate that the proposed method gives a good performance in tracking the reference model.
유치의 조기상실로 인한 계승영구치의 조기 맹출시 간격유지장치를 이용한 치료증례
이상호,문현진,이창섭 大韓小兒齒科學會 1990 大韓小兒齒科學會誌 Vol.17 No.2
Premature eruption of succedaneous permanent teeth following premature extraction of primary teeth, cause many clinical problems. In the state of short root with decreased support by bone and abscence of attached gingiva around teeth, the occlusal stress may cause the increased mobility of tooth which result in tooth infection and fallon out of teeth or shortened root formation. Objectives of the treatment were to prevent adverse effects such as infection, fallon out of tooth, or abnormal root formation which induce significant clinical signs and syptoms, and to maintain space for eruption of permanent teeth. The treatments were done by wearing space maintainers, such as lingual arch or palatal arch type, crown and loop or band and loop type with auxillary wire oriented mesiodistally or bucolingually along occlusal grooves. We observed reduced tooth mobility, edema on surrounding tissue, sensation to perecussion, and nomal development of root. Further, periodic recall check is needed for evaluation of root development.
정혜진;김현태;김유선;정현걸;강윤경;문정섭 인제대학교 2011 仁濟醫學 Vol.32 No.-
Eosinophilic gastroenteritis is a rare disorder of unknown etiology characterized by presence of gastrointestinal symptoms, eosinophilic infiltratio n of one or more parts of gastrointestinal tract without involvement of other organs and absence of parasitic infestation. The clinical presentation depends on the extents and depths of eosinophilic infiltration. Mucosal involvement may result in abdominal pain, nausea, vomiting, diarrhea and weight loss. We report a case of eosinophilic enterocolitis in a 55-year-old female presented with abdominal pain and watery diarrhea resulting in recurrent acute renal failure.
림프질 전이가 있는 하인두암과 하부식도암의 진단에 활용된 내시경초음파 유도하 Trucut 생검 1예
광명옥,이정환,문정섭,김유선,류수형,총배천,김형훈,김현태 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-
The incidence of double primary cancer is about 10% in all kinds of cancers. Double primary cancer is usually accompanied by gastrointestinal cancer. Esophageal cancer is supposed to be frequently accompanied by squamous cell carcinoma of the head and neck or the upper respiratory tract, because of such common carcinogens as smoking and alcohol ingestion. Esophageal cancer and hypopharyngeal cancer are usually diagnosed by esophagogastric endoscopy with biopsy. We performed endoscopic ultrasound-guided Trucut biopsy(EUS-TCB) to diagnose a mediastinal mass in a 49 year-old patient, who visited our hospital because of voice change. During procedure, we accidently found enlarged celiac lymph node, and obtained tissue from the mediastinal lymph node and the celiac lymph node. We confirmed double primary cancer of squamous cell carcinoma in the esophagus and the hypopharynx via esophagogastric endoscopy.
서덕영,장승기,경문현,박섭형 경희대학교 산학협력기술연구원 1996 산학협력기술연구논문집 Vol.2 No.-
This paper describes two traffic shaping methods for VBR(variable bit rate) video bit streams encoded in the MPEG-2 syntax. Difficulties in control of VBR video traffic are lessened by traffic shaping. Burstness of single layer MPEG-2 can be reduced by performing intra-refresh in more than one consecutive frames. In two layer encoding of spatial scalability, burstness can be reduced by setting the temporal locations of GOP starting frame of a layVBR 트래픽을 허용한다는 것이다. 모든 AAL er, differently from the other. Queueing analysis shows that these two methods outperform conventional encoding schemes in terms of temporal and semantic QoS requirements.
Hyun, Moon-Seop,Yoo, Jung-Ho,Kwak, Noh-Yeal,Kim, Won,Rhee, Choong-Kyun,Yang, Jun-Mo Korean Society of Microscopy 2012 Applied microscopy Vol.42 No.3
Detailed comparison of low-voltage scanning electron microscopy and electron holography techniques for two-dimensional (2D) dopant profiling was carried out with using the same multilayered p-n junction specimen. The dopant profiles obtained from two methods are in good agreement with each other. It demonstrates that reliability of dopant profile measurement can be increased through precise comparison of 2D profiles obtained from various microscopic techniques.
Hyun, Moon-Sik,Kim, Byung-Hong,Chang, In-Seop,Park, Hyung-Soo,Kim, Hyung-Joo,Kim, Gwang-Tae,Kim, Mi-a,Park, Doo-Hyun The Microbiological Society of Korea 1999 The journal of microbiology Vol.37 No.4
In order to isolate a Fe(III)-reducer from the natural environment, soil samples were collected from various patty fields and enriched with ferric citrate as a source of Fe(III) under anaerobic condition. Since the enrichment culture was serially performed, the Fe(III)-reduction activity was serially diluted and cultivated on an agar plate containing lactate and ferric citrate in an anaerobic glove box. A Gram negative, motile, rod-shaped and facultative anaerobic Fe(III)-reducer was isolated based on its highest Fe(III)-reduction activity, Bacterial growth was coupled with oxidation of lactate to Fe(III)-reduction, but the isolate fermented pyruvate without Fe(III), The isolate reduced an insoluble ferric iron (FeOOH) as well as a soluble ferric iron (ferric citrate). Using the BBL crystal enteric/non-fermentor identification kit and 16S rDNA sequence analysis, the isolate was identified as Shewanella putrefaciens IR-1.
문대섭(Moon Dae-Seop),권용장(Kwon Yong-Jang),김현웅(Kim Hyun-Woong),김경태(Kim Kyoung-Tae),정병현(Chung Byung-Hyun),노학래(Roh Hag-Lae) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper is designed (ⅰ) to envisage the characteristics of high speed rail stations that will be in operation when the Seoul-Pusan line currently under construction is completed and (ⅱ) to assist policy makers in mapping out transportation strategies by providing insights into how advanced countries have handled problems under similar circumstances. Ultimately, this paper intends to present alternatives of trans-modal systems in an attempt to set a direction for future policy making in the high speed rail sector. The alternatives recommended in this report stress two important elements for maximized utility of high speed rail: One is to maintain consistency in transportation policies and the other is to attract consumers to the station areas.