퍼지 GMDH 알고리즘과 폐수처리 공정 시스템에의 응용

안태천,노석범,황형수,오성권 圓光大學校 1996 論文集 Vol.31 No.2

본 논문에서는 GMDH(Group Method of Data Handling) 알고리즘을 이용하여 퍼지 모델의 구조와 파라미터를 설정하는 알고리즘을 제안하였다. 퍼지 함의 규칙의 전건부 구조와 파라미터를 동정하기 위해 GMDH 알고리즘과 퍼지 추론을 사용하였고 최적의 후건부 파라미터를 동정하기 위해 최소 자승법을 사용하였다. 제안된 모델링 방법의 성능을 평가하기 위해서 가스로 시계열 데이터와 하수처리 데이터를 사용하였다. 제안된 방법을 사용하면 다른 모델에 비해 우수한 성능을 가진 지능 모델을 얻을수 있다. The Proposed fuzzy modeling implements system structure and parameter identification using the GMDH(Group Method of Data Handling) Algorithm. In this method, We use the GMDH algorithm and fuzzy inference to identify the premise structure and parameter of fuzzy implication rules and least square method to identify optimum consequence parameter. Time seris data for gas furnace and wastewatertreatment data are used for purpose of evaluating the performance of the proposed fuzzy.

Castleman 질환 1례

안묘순,송형근,박범수,한헌석,하태선 충북대학교 의과대학 충북대학교 의학연구소 1993 忠北醫大學術誌 Vol.3 No.1

Castleman 질환은 주로 종격동 임파선을 침범하여 임상적, 조직학적으로 흉성종과 유사한 소견을 보이는 질환이다. 보통 침범된 임파선은 3cm에서 7cm의 크기를 보이며 경계가 뚜렷한 종양으로 나타난다. 조직학적 소견상 hyaline-vascular형(H-V형)과 plasma cell형의 두가지로 나눈다. 임상적으로는 hyaline-vascular형은 별증상이 없으며 보통 우연히 발견되고 드물게 기도와 기관지를 압박하는 증세를 보이기도 한다. plasma cell형은 빈혈, 적혈구침강속도의 증가, 고감마글로불린혈증, 저알부민혈증, 그리고 저트란스페린혈증을 보이기도 한다. 저자들은 생후 2개월부터 반복되는 호흡기 감염과 거친 숨소리를 보이면서, 성장 및 발육장애를 보인 14개월된 남아에서, 기도에서 우측 주기관지까지를 압박하고 있는 종양을 흉부 전산화단층촬영에서 발견하고 떼어낸 후 조직소견상 hyaline-vascular형의 giant lymph node hyperplasia의 소견을 보이는 Castleman 질환 1례를 경험하였기에 보고하는 바이다. Castleman's disease(angiofollicular lymph node hyperplasia) can arise from lymph nodes or extranodal tissues and can be classified histologically into the hyaline-vascular form, characterized by hyaline follicle-like structures interspersed with vascular tissue, or the plasma cell variant, in which the follicle-like structures are seperated by sheets of plasma cells amidst vascular interfollicular tissue. The clinical manifestations of the multicentric variant can be protean and inculude fever, night sweats, weight loss, lymphadenopathy, hepatosplenomegaly, pleural effusion, ascites, anemia, thrombocytopenia, polyclonal hypergammaglobulinemia, and neurological and renal abnormalities. We report a case of Castleman's disease in 14-month old male patient with the chief complaints of recurrent respiratory symptoms and delayed growth and development, who was diagnosed as having a hyaline-vascular form of above disease after the excision of pulmonary mass which compressed the right main bronchus.

장벽경색이 선행한 Henoch-Schonlein 자반증 1례

한헌석,하태선,송형근,이상전,안묘순,박범수 충북대학교 의과대학 충북대학교 의학연구소 1993 忠北醫大學術誌 Vol.3 No.1

Henoch-Schonlein 자반증은 피부, 위장관, 관절, 신장 등을 주로 침범하며 소혈관염을 기본 병리 소견으로하는 전신성 혈관 장애 질환이다. 위장관계 증상으로는 복통, 오심 및 구토, 잠혈, 토혈, 흑색변 등이 있을 수 있고, 이러한 증상은 합병증 없이 회복되는 것이 보통이나 드물게는 장중첩증, 장벽경색 및 괴사, 장천공 등의 심한 합병증을 동반할 수도 있다. 이러한 위장관계 증상들은 특징적인 피부 소견에 선행하여 나타날 수도 있으며, 이때는 급성복증에 대한 감별진단이 중요하다. 저자들은 장벽경색이 선행하여 감별진단에 어려움을 겪고 시험적개복술을 시행한 이후에 특징적인 피부 자반이 발현되어 Henoch-Schonlein 자반증으로 진단할 수 있었던 증례를 경험하였기에 이를 보고하고자 한다. 본 증례는 입원 1일전부터 시작된 복통을 주소로 입원한 5세 남아가 배꼽 주위에 심한 경련성 복통을 지속적으로 호소하였고 이학적 소견상 배꼽주위의 압통, 장음의 감소, 흑색변 등이 있었으며 소장조영술상 공장 부위에 미만성의 불규칙한 점막비후 소견을 보여 제 8병일에 시험적개복술을 시행한 결과 근위 공장에 국한된 장괴사의 소견이 발견되어 절제 및 문합술을 실시 하였다. 병리학적 검사에서는 장벽경색의 소견을 보였다. 수술후에 복통은 완화되었으나 경미하게 지속되었고, 제 13병일경에 급성 부고환염이 병발되었다가 회복되었고 제 15병일경에는 하지에서부터 발현된 자반이 3일간 지속되었다. 결구 Henoch-Schonlein 자반증과 이의 합병증으로 발생한 근위 공장의 장벽경색으로 진단하였다. Colicky abdominal pain as symptom of Henoch-Schonlein purpura occurs in up to 70% of patients, and results from submucosal edema and hemorrhage. Abdominal pain and other GI symptoms such as nausea, vomiting, melena and hematemesis resolve mostly without any complications. But rarely life-threatening GI complications such as intussusception, intestinal mural infarction and necrosis, and massive hemorrhage may develope. In 14% of patients, abdominal pain may precede other symptoms, and creats diagnostic difficulties. We reports a case of the Henoch-Schonlein purpura presented with colicky abdominal pain which resulted from intestinal mural infarction and preceded characteristic purpuric skin lesion by several weeks. This 5 year old male patient complained of colicky abdominal pain, nausea and melena. Exploratory laparatomy was done and revealed intestinal mural infarction in proximal jejunum. One week later operation, purpuric skin lesion develiped in both leg and feet, and then, Henoch-Schonlein purpura was diagnosed.

가시오가피의 부위별 물 추출물이 흰쥐의 혈관이완반응에 미치는 영향

姜奉錫,金亨煥,安德均,崔湖榮 대한본초학회 2001 大韓本草學會誌 Vol.16 No.2

In this study we have examined the actions of water extract of Eleutherococus senticosus (Rupr. et Maxim.) Maxim. (ESH), Stem, Root bark (RB) and Root xylem (RX) in isolated thoracic and abdominal aorta assay. To compare the vasodilation effect, put. ESH, Stem, RB and RX into them which vessels were precontracted by 5-hydroxytryptamine (5-HT). We found out the thoracic aorta segments were responded to ESH with a dose-dependent vasodilation. The 5-HT induced contraction at 10-4M were relaxed after addition of the 2.0 ㎎/㎖ ESH as 32.1% (Stem), 34.9% (RX) and 87.2% (RB). The 5-HT induced vasocontraction at 10^-4M were vasodilated such as 87.2% in thoracic aorta and 89.0% in abdominal aorta with 2.0㎎/㎖ ESH. Addition of 2.0㎎/㎖ ESH in thoracic aorta which was precontracted by the 5-HT at 10-4M were come out differently 0% (water fraction), 53.8% (butanol fraction) and 96.6% (ethyl acetate fraction). The 5-HT induced contraction at 10-4M with and without endothelium were inhibited by 87.2% and 87.8% after addition of the ESH (2.0 ㎎/㎖). In conclusion, ESH-induced relaxation in the isolated rat thoracic aorta and abdominal aorta were come out be dose-dependent relaxation, and ESH's ethyl acetate fraction was showed the potent vasodilation effect.

蜂毒(Apitoxin)이 흰 쥐의 Adjuvant 關節炎에 미치는 影響

朴亨奎,安圭錫,河智容 대한동의병리학회 1993 동의생리병리학회지 Vol.8 No.-

연구배경 : 봉독요법은 아직 보편화되지 못했으나 실제 임상에서 만성 관절염이나 염증질환에 많이 이용하고 있으며, 수천년전부터 민간요법으로 사용되어 왔다. 이에 봉독의 치료효과를 과학적으로 검증하고 치료기전을 밝혀 봉독요법의 활용에 도움이 되고자 한다. 방법 : 실험용 흰쥐에 Freun's complete adjuvant 액을 피하주사하여 관절염을 유발시키면서, apitoxin을 피하주사하여 부종률, 진통효과 및 소염작용을 측정한다. 결과 : 치료군에서 부종률이 억제되었고 WBC 및 혈청 cholinestrase의 활성도가 감소되었으며, 동통역치는 증가하였다. 결론 : 봉독요법은 소염, 진통에 뛰어난 효능을 가지고 있어 비증, 역절풍 및 통풍 등에 응용할 수 있을 것으로 사려된다. In order to study the effect of Apitoxin therapy on the Anti-inflammatary and Analgesic Action, Apitoxin therapy was administered on the Arthritis induced by Freund's complete adjuvant in rats. The obtainded results were summarized as follows. 1. Anti-inflammatory effect of Apitoxin therapy on the Anti-inflammatory action was showed statistical significance. The Sample A was more excellent on the decrease of edema and the number of WBC. 2. Analgesic Effect was showed with significance in sample A and B. Sample A was more excellemt in pain threshold, and B was more excellent in decrease of cholinestrase. According to the above result, it can be concluded Bee Vemom therapy showed the Anti-inflamentory and Analgenic Effect, and is suggest that the more interest, study in the secuity for the clinical use were neded.

비만을 동반한 위암 환자에서 두 병을 같이 수술 치료한 경험(증례)

최경현,윤기영,문형환,신연명,서경원,안수미,송윤미,석정희,정경연,이은하 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3

Obesity is growing problem in Korea. We had a case of bariatric surgery during gastric cancer operation. Patient was 29 year old Korean lady with early gastric cancer located in the lesser curvature side of the middle 1/3 of the stomach. Her body weight was 89 kg, height 163 cm, and thus body mass index was 33.5 kg/m2. Preoperative blood pressure was 130/90 mmHg, hemoglobin 12.9 g/dL, total lymphocyte count 3,280/mL, serum albumin 4.3 g/dL, CEA 1.1 ng/mL, CA 19-9 9.1 ng/mL, and alpha fetoprotein 2 ng/mL. Another associated disease was right thyroid follicular neoplasm. The chest X-ray was normal. After IM injection of 2,500 units of heparin 30 minutes before the induction of general anesthesia, she received curative subtotal gastrectomy and Roux en Y gastrojejunostomy when a malabsorption loop of 120 cm jejunum was incorporated between the Treitz ligament and the end to side jejuno-jejunostmy site at May 29th 2006. Her postoperative course was uneventful except a minor wound seroma and the elevations of serum amylase(up to 4 folds) and lipase(up to 2 folds). She lost her body weight 9 kg in 5th, 21 kg in 7th, and 27 kg in 10th postoperative months to became 61.5 kg. On follow up exams in July 2008, she gained 4 kg to overcome her weakness and fatigue. From the above result, the incorporation of a malabsorption loop during reconstruction phase of gastric cancer operation was a good option for obese gastric cancer patients especially in cases of early gastric cancer.

전경대원에서 발생한 결핵의 임상 양상

문창기,박상준,조민구,김영중,김소연,김윤권,정준오,안석진,김은실,서승오,김지훈,최원제,이윤영,박형기,최규영,김현근 대한감염학회 2006 감염과 화학요법 Vol.38 No.6

Background: The purpose of this study was to document the incidence and clinical characteristics of patients with tuberculosis (TB) in combat and auxiliary police, living in a group, in Korea where the incidence rate of active TB in a general population is higher than in Western countries. Materials and Methods:We retrospectively reviewed the medical records of all tuberculosis patients diagnosed at National Police Hospital from January 2002 through December 2004. Results:In 2002-2004, a total of 156 cases of tuberculosis were identified with the mean (Standard deviation) age of 20.6 (±1.0) years. Of these, 134 (85.9%) patients were registered as new cases, 11 (7.1%) as relapse, 2 (1.3%) as failure, 5 (3.1%) as treatment-after-default cases whereas 4 (2.6 %) patients were not included in any categories. Average annual new TB rate and smear-positive TB rate were 86.5/10^(5) and 17.4/10^(5) person-years, respectively. In 12 of 31 smear-positive cases, time from onset of symptoms to diagnosis was more than 30 days. Two multidrug-resistance TB cases were identified and two suspected outbreak episodes of TB had occurred during 3 years. Conclusion:There was no statistically significant difference in the incidence rate of new cases of TB between the general population aged 20 to 29 years and combat and auxiliary police in Korea. 배경 : 국내 결핵의 발생은 감소 추세에 있으나 여전히 후진국형 발생양상을 보이고 있다. 특히 집단생활을 하는 젊은이들에서 발생하는 결핵의 유행이 간헐적으로 알려지고 있어 우려를 낳고 있다. 이에 저자들은 최근 전경대원의 결핵 발병 양상에 대해 알아보고자 본 연구를 시행하였다. 재료 및 방법 : 2002년 1월부터 2004년 12월까지 3년간 경찰병원에서 결핵 진료를 받은 전경대원의 의무기록을 후향적으로 분석하여 연도별 결핵 신환발생률, 도말양성결핵 신환율, 진단 지연, 집단발병, 다제내성결핵을 조사하였다. 결과 : 연도별 결핵 신환자 수(10만명당 발생추정치)는 2002년 50명(83.6명), 2003년 42명(83.7명), 2004년 42명(93.5명)이었고 도말양성 폐결핵 신환자 수는 2002년 10명(16.7명), 2003년 11명(21.9명), 2004년 6명(13.4명)이었다. 3년간 도말양성 폐결핵 환자는 31명이 있었고 그 중 12명은 호흡기 증상 발생 30일이 지나서 진단을 받았다. 다제내성 결핵은 2명이 있었으며 결핵의 집단발병이 의심되는 사례는 2차례 있었다. 결론 : 전경대원과 20-29세 연령군 일반인의 결핵 신환발생률, 도말양성 폐결핵 발생률의 통계적으로 유의한 차이는 없었다.

A Small Cell Lung Cancer Concurrently Diagnosed with Paraneoplastic Dermatomyositis

Hyung Seok Lee,Dae Young Zang,Young Il Seo,Dong Gyu Kim,Eun Jung Kim,Jin Seok Ahn,Hye Rim Park 대한암학회 2003 Cancer Research and Treatment Vol.35 No.2

Dermatomyositis is an inflammatory myopathy, of unknownetiology, which is characterized by cutaneousrashes, accompanied by progressive and symmetric proximalmuscle weakness. Especially in older people, theincidences of malignant conditions appear to be increasedin dermatomyositis patients, and the prognosisis very poor. Because dermatomyositis may occur as aparaneoplastic syndrome, extensive screening tests, foran occult malignant neoplasm, should be conducted inolder dermatomyositis patients. We experienced a caseof small cell lung cancer, which had a very rapid andcatastrophic clinical course, in a 63-year-old male patientwith dermatomyositis. We report this case, and review theliterature on the relationship of dermatomyositis andmalignancy. (Cancer Res Treat. 2003;35:161-164

결정질 실리콘 태양광 모듈 내 중금속 함유 현황 및 환경 영향성

안진형(Jin Hyung Ahn),최윤석(Yoon Seok Choi),심규진(Gyu Jin Shim),김문석(Moon Seok Kim),임종근(Jong Geun Lim),황명익(Myung Ik Hwang) 한국신재생에너지학회 2018 한국신재생에너지학회 학술대회논문집 Vol.2018 No.11

A Hexane Fraction of Guava Leaves (Psidium guajava L.) Induces Anticancer Activity by Suppressing AKT/Mammalian Target of Rapamycin/Ribosomal p70 S6 Kinase in Human Prostate Cancer Cells

Ryu, Nae-Hyung,Park, Kyung-Ran,Kim, Sung-Moo,Yun, Hyung-Mun,Nam, Dong-Woo,Lee, Seok-Geun,Jang, Hyeung-Jin,Ahn, Kyoo-Seok,Kim, Sung-Hoon,Shim, Bum-Sang,Choi, Seung-Hoon,Mosaddik, Ashik,Cho, So-Mi K.,Ah The Korean Society of Food Science and Nutrition 2012 Journal of medicinal food Vol.15 No.3

This study was carried out to evaluate the anticancer effect of guava leaf extracts and its fractions. The chemical compositions of the active extracts were also determined. In the present study, we set out to determine whether the anticancer effects of guava leaves are linked with their ability to suppress constitutive AKT/mammalian target of rapamycin (mTOR)/ribosomal p70 S6 kinase (S6K1) and mitogen-activated protein kinase (MAPK) activation pathways in human prostate cancer cells. We found that guava leaf hexane fraction (GHF) was the most potent inducer of cytotoxic and apoptotic effects in PC-3 cells. The molecular mechanism or mechanisms of GHF apoptotic potential were correlated with the suppression of AKT/mTOR/S6K1 and MAPK signaling pathways. This effect of GHF correlated with down-regulation of various proteins that mediate cell proliferation, cell survival, metastasis, and angiogenesis. Analysis of GHF by gas chromatography and gas chromatography-mass spectrometry tentatively identified 60 compounds, including <TEX>${\beta}$</TEX>-eudesmol (11.98%), <TEX>${\alpha}$</TEX>-copaene (7.97%), phytol (7.95%), <TEX>${\alpha}$</TEX>-patchoulene (3.76%), <TEX>${\beta}$</TEX>-caryophyllene oxide (CPO) (3.63%), caryophylla-3(15),7(14)-dien-6-ol (2.68%), (E)-methyl isoeugenol (1.90%), <TEX>${\alpha}$</TEX>-terpineol (1.76%), and octadecane (1.23%). Besides GHF, CPO, but not phytol, also inhibited the AKT/mTOR/S6K1 signaling pathway and induced apoptosis in prostate cancer cells. Overall, these findings suggest that guava leaves can interfere with multiple signaling cascades linked with tumorigenesis and provide a source of potential therapeutic compounds for both the prevention and treatment of cancer.