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Multimedia Expert System for a Nuclear Power Plant Accident diagnosis using a Fuzzy Inference Method
Lee, Sang-Beom,Lee, Seong-Ju,Lee, Mal-Rye Korean Society of Computer Information 2001 한국컴퓨터정보학회 학술발표논문집 Vol.6 No.1
The huge and complicated plants such as nuclear power stations are likely to cause the operators to make mistakes due to a variety of inexplicable reasons and symptoms in case of emergency. Thats why the prevention system assisting the operators is being developed for. First of all. I suggest an improved fuzzy diagnosis. Secondly. I want to demonstrate that a classification system of nuclear plants accident investigating the causes of accidents foresees possible problems. and maintains the reliability of the diagnostic reports in spite of improper working in part. In the event of emergency in a nuclear plant, a lot of operational steps enable the operators to find out what caused the problems based on an emergent operating plan. Our system is able to classify their types within twenty to thirty seconds. As so, we expect the system to put don the accidents right after the rapid detection of the damage control-method concerned. 복잡한 공정계통들로 구성된 원자력 발전소에서 정상적인 운전상태를 벗어나 이상사태로 진행될때 이를 조기에 진단하고 사고를 예방할 수 있는 제반 조치를 적절히 취하는 것은 플렌트 가동율을 향상시키고 사고의 심각성을 줄이기 위한 필수요건이 된다 이상사태 발생시 과도현상의 원인과 증상은 모호하고 복잡한 인과관계를 갖기 때문에 운전원의 실수를 유발할 수 있으므로 운전원을 지원할 수 있는 사고진단 시스템의 개발이 필요하다. 따라서 본 연구에서는 일반화된 퍼지 추론 알고리즘의 개선된 퍼지진단방법론을 제시하고, 사고초기단계에서 주요 운전변수의 거동 변화에 따른 사고원인 및 사고유형을 정확하게 예측하고 일부 입력의 오류에도 진단의 신뢰성을 유지할 수 있는 원자력 발전소 사고유형 분류 시스템을 개발하고자 하였다.
박성창 ( Seong Chang Park ),박승환 ( Seong Hwan Park ),이호준 ( Ho Jun Lee ),이경은 ( Kyung Eun Lee ),박동진 ( Dong Jin Park ),조영난 ( Young Nan Cho ),이성지 ( Sung Ji Lee ),서성례 ( Seong Rye Seo ),김태종 ( Tae Jong Kim ),이신석 대한류마티스학회 2010 대한류마티스학회지 Vol.17 No.2
Brucellosis is an endemic zoonotic disease, particularly in the Middle East and Mediterranean regions, and can involve many organs and tissues. Recently, the incidence of human brucellosis has increased rapidly in Korea. Brucellosis may often appear as other infections and asymptomatic conditions because of its range of clinical manifestations. Therefore, its diagnosis is frequently missed or delayed. Early diagnosis of brucellar spondylitis is important for reducing the number and intensity of complications. Therefore, it should be included in a differential diagnosis of back pain with an unknown origin. Brucellosis is normally transmitted to humans by direct contact with infected animals or by the ingestion of unpasteurized dairy products. We report an unusual case of brucellar spondylitis complicated by acupuncture.
증례 : 류마티스 ; 메토트렉세이트와 아자치오프린 투여 후 호전된 피부근염에서의 지방층염
서성례 ( Seong Rye Seo ),임성륜 ( Sung Ryoun Lim ),이성지 ( Sung Ji Lee ),김태종 ( Tae Jong Kim ),박용욱 ( Yong Wook Park ),윤숙정 ( Sook Jung Yun ),이신석 ( Shin Seok Lee ) 대한내과학회 2011 대한내과학회지 Vol.80 No.1
피부근염은 피부와 근육에 침착된 자가 항체와 면역 복합체에 의해 비화농성 염증이 생기는 자가 면역 질환으로 피부 병변은 잘 알려져 있으나 피하지방 병변의 임상양상과 조직학적 소견은 잘 알려져 있지 않다. 1924년 Weber에 의해 피부근염에 동반된 지방층염이 보고된 이래 지금까지 23예의 증례가 보고되어 있다. 저자들은 내원 7년전 피부근염으로 진단되어 외래에서 경과추적을 하고 있던 27세 여자 환자에서 양측 상지와 안면부를 포함한 전흉부에 통증을 동반한 경화성 결절을 발견한 후 피부 조직 생검을 통해 지방층 염으로 진단하였고, 고용량의 프레드니솔론과 메토트렉세이트를 투여함에도 피부 병변의 호전이 없어 아자치오프린을 추가하였고, 이후 호전을 경험하였기에 문헌고찰과 함께 보고하는 바이다. Dermatomyositis is an autoimmune disease wherein autoantibodies and immune complexes cause non-suppurative inflammation in skin and muscle. Although the skin lesions of this disease are well known, the clinical and pathological features of subcutaneous fat lesions remain uncharacterized. Since Weber (1924) reported the development of panniculitis in a patient with dermatomyositis, 23 subsequent cases have been reported. Here, we present the case of a woman who had been diagnosed with dermatomyositis 7 years previously, and presented with diffuse, painful, indurated nodules on her face and upper limbs. A skin biopsy allowed us to diagnose these nodules as panniculitis. The patient was initially treated with high doses of prednisolone and methotrexate. She responded inadequately to these medications, so azathioprine was added to the regimen. The skin lesions subsequently improved and the patient has remained disease-free for 1 year. Here, we present the clinical profile of this patient and review the relevant literature. (Korean J Med 2011;80:122-127)
이성지 ( Sung Ji Lee ),서성례 ( Seong Rye Seo ),이호준 ( Ho Jun Lee ),이경은 ( Kyung Eun Lee ),김태종 ( Tae Jong Kim ),박용욱 ( Yong Wook Park ),이신석 ( Shin Seok Lee ) 대한류마티스학회 2010 대한류마티스학회지 Vol.17 No.2
Turner`s syndrome (TS) is characterized by short stature and gonadal dysgenesis. It is often associated with systemic manifestations, such as cardiovascular, gastrointestinal, and musculoskeletal disorders. Although very rare, it is possible for TS to accompany autoimmune disease, including thyroid disease, inflammatory bowel diseases, diabetes mellitus, psoriatic arthritis, and juvenile rheumatoid arthritis. A 39-year-old woman was referred for symmetric polyarthritis of her hands and feet. She had been diagnosed with Turner`s syndrome with 46,XO,-X,+fragment before the age of 22 years and had developed autoimmune hypothyroidism treated with thyroid hormone replacement. At the time of first visit, she had polyarthralgia with morning stiffness for more than 3 months. The musculoskeletal examination revealed symmetrical polyarthritis affecting the metacarpophalangeal, proximal interphalangeal, and metatarsophalangeal joints, fulfilling the ACR 1987 revised criteria for rheumatoid arthritis (RA). Here, we present an unusual case of RA associated with TS. It is important to pay meticulous attention to patients with TS so that inflammatory arthritis is not neglected and the diagnosis is not delayed.
류마티스관절염 양상으로 발현된 췌장암의 부종양성 증후군
김태종 ( Tae Jong Kim ),김영일 ( Young Il Kim ),이호준 ( Ho Jun Lee ),이경은 ( Kyung Eun Lee ),박용욱 ( Yong wook Park ),최선규 ( Seon Gyu Choi ),이신석 ( Shin Seok Lee ),서성례 ( Seong Rye Seo ),이성지 ( Sung Ji Lee ) 대한류마티스학회 2011 대한류마티스학회지 Vol.18 No.1
Paraneoplastic cancer polyarthritis is a very rare manifestation of musculoskeletal disorders associated with several solid and hematologic malignancies. We describe a 71-yearold woman who presented initially with an abrupt onset of rheumatoid arthritis-like symmetrical polyarthritis. The patient was diagnosed with pancreatic cancer with multiple hepatic metastases approximately six months later. Her symptoms of polyarthritis improved after the introduction of medication including non-steroidal anti-inflammatory drugs and disease modifying anti-rheumatic drugs. This case suggests that a hidden malignancy should always be considered in elderly patients, who present with an abrupt onset of symmetric polyarthritis for the first time in their life.
Lee, Sang Jin,Choi, Ji Suk,Eom, Min Rye,Jo, Ha Hyeon,Kwon, Il Keun,Kwon, Seong Keun,Park, Su A The Royal Society of Chemistry 2020 Nanoscale Vol.12 No.8
<P>Despite recent developments in the tracheal tissue engineering field, the creation of a patient specific substitute possessing both appropriate mechanical and biointerfacial properties remains challenging. Most tracheal replacement therapies fail due to restenosis at the anastomosis site. In this study, we designed a robust, biodegradable, 3D tubular scaffold by combining electrospinning (ELSP) and 3D (three-dimensional) printing techniques for use in transplantation therapy. After that, we loaded dexamethasone (DEX) onto the 3D tubular scaffold using mild surface modification reactions by using polydopamine (PDA), polyethyleneimine (PEI), and carboxymethyl-β-cyclodextrin (βCD). As a result, the fabricated 3D tubular scaffold had robust mechanical properties and the chemical modifications were confirmed to have proceeded successfully by physico-chemical analysis. The surface treatments allowed for a larger amount of DEX to be loaded onto the βCD modified scaffold as compared to the bare group. <I>In vitro</I> and <I>in vivo</I> studies demonstrated that the DEX loaded 3D tubular scaffold exhibited significantly enhanced anti-inflammation activity, enhanced tracheal mucosal regeneration, and formation of a patent airway. From our results, we believe that our system may represent an innovative paradigm in tracheal tissue engineering by providing proper mechanical properties and successful formation of tracheal tissue as a means of remodeling and healing tracheal defects for use in transplantation therapy.</P>
순환형 퍼지 신경망을 이용한 능동소음 제어시스템 성능개선 연구
한성익(Seong-Ik Han),여대연(Dae-Yeon Rye),김새한(Sae-Han Kim),이권순(Kwon-Soon Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.4
인공지능 제어를 이용한 능동소음 제어성능 향상을 위한 기법을 제안한다. 실시간에 적용이 가능한 순환형 퍼지신경망을 설계하고 제안한 기법이 2차경로를 고려한 능동소음제어의 전통적인 FXLMS 기법에 비해 소음저감성능이 뛰어남을 전기모터 소음에 대한 시뮬레이션올 통해 검중한다.