HVAC 시스템에 대한 PSO 알고리즘을 이용한 최적화된 Multi-Fuzzy 제어기 설계

정승현(Seung-Hyun Jung),최정내(Jeoung-Nae Choi),오성권(Sung-Kwan Oh),최한종(Han-Jong Choi),류병진(Byoung-Jin Ryu) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10

본 논문은 HVAC(heating, ventilating, and air conditioning) 시스템에 대해 Particle Swarm Optimization(PSO) 알고리즘을 이용하여 최적화된 Multi-Fuzzy 제어기 설계를 제안한다. HVAC 시스템의 효율과 안정도에 결정적인 영향을 미치는 과열도와 저압(증발기의 압력)을 제어하기 위해, 3대의 Expansion Valve 와 1대의 Compressor 에서 동시에 제어하는 Multi-Fuzzy 제어기를 설계한다. 그리고 최적화 알고리즘 중 하나인 사회적인 행동양식을 기반한 PSO 알고리즘을 이용하여 설계된 Multi-Fuzzy 제 어기를 최적화한다. 시뮬레이션의 결과 비교를 통해, 대표적인 최적화 알고리즘인 유전자 알고리즘을 사용한 최적화된 제어기와 제안한 PSO 알고리즘을 이용한 최적화된 제어기의 성능을 평가한다.

忠南地方에 있어서 女性生殖器系統의 癌腫發生에 對한 硏究(Ⅰ)

崔漢鐘,李泰淑 충남대학교 의과대학 지역사회의학연구소 1981 충남의대잡지 Vol.8 No.2

For studies on cancer incidence of the female genital tract in the Chungnam area, the operation and biopsy specimens collected at the Department of Pathology, Chungnam National University School of Medicine from January, 1973, to December, 1976, were analyzed and the results were as follows: 1. Total malignant tumors collected for 4 years were 175 cases. The highest incidence of cancer was in the uterine cervix, and was 121 cases (69.1%), the next, the uterus and endometrium, 27 cases(15.4%), and the ovaries, 20 cases (11.4%), and the vagina, 5 cases (2.9%), respectively. 2. The incidence of each year showed 36 cases in 1973, 37 cases in 1974, 49 cases in 1975, and 53 cases in 1976. The increasing rate showed 2.8%, 36.1%, and 47.2% in progressing year, and increasing rate compared to previous year showed 2.8%, 32.1%, and 8.2%, respectively. 3. The highest age incidence of ovarian malignancies was at 30th age group, that of the uterus and the endometrium was from 40th to 60th age groups, and that of the uterine cervix was at 40th age group.

忠南地方에 있어서 子宮切除例의 臨床的 및 病理組織學的 硏究(Ⅱ)

崔漢鐘,李泰淑 충남대학교 의과대학 지역사회의학연구소 1981 충남의대잡지 Vol.8 No.1

For studies on the clinical and pathological aspects of hysterectomized specimens in the Chungnam area, total 286 hysterectomized cases, performed at the general hospital, were collected at the Department of Pathology, Chungnam National University School of Medicine, from 1973 to 1980 The results were as follows: 1. The highest age incidence was at 40th age group, and was 47.9%(137 cases), and next was at 30th, 28.3% (81 cases), and at 50th, 16.1% (46 cases), respectively. 2. In the type and procedure of the operation of total 286 cases the highest incidence was total hysterectomy with adnexectomy, and was 57.7% (165cases), and the next was total hysterectomy with adnexectomy and appendectomy, and was 26.6% (76 cases). 3. The most frequent chief complaint was genital bleeding and abnormal menstruation, and was 40.2%(115 cases), und the next was abdominal mass, 24.8% (71 cases), and tumor, 10.8% (31 cases) and pain or discomfort, 0.5% (30 cases), respectively. 4. The most frequent clinical diagnosis was tumor, and was 64.8% (185 cases), and the next was inflammatory diseases, 14.7% (42 cases), and complications of conception, 10.8% (31 cases), respectively. 5. The most frequent pathological lesion in the uterine cervix was simple inflammation, and was 72.1% (199 cases), and the neoplasm was invasive squamous cell carcinoma, 9.4% (26 cases). The most frequent lesion in the uterus was adenomyosis, and was 34.3%(98 cases), and the neoplasm was leiomyoma, 22.7% (65 cases). The most frequent lesion in the salpinx and ovary was simple salpingitis, and was 48.5% (117 cases), and the most frequent tumor was cystadenoma, 5.0% (12 cases).

난소 임신 -1례 보고 및 문헌 고찰-

김의한,최한종 순천향대학교 1983 논문집 Vol.6 No.1

Primary ovarian pregnancy is rare in occurrence and the cause is not still completely dissolved. It occurs at relatively young aged women and more frequently at the nulipregnant than at the multipregnant. Of late, we had a case of primary ovarian pregnancy, so we herein reported and the literatures are reviewed attending to the pathological diagnostic criteria, causes, occurrence and the clinical symptoms.

忠南地方에 있어서 子宮切除例의 臨床的 및 病理組織學的 硏究(Ⅰ)

崔漢鍾,李泰淑 충남대학교 의과대학 지역사회의학연구소 1979 충남의대잡지 Vol.6 No.2

For studies on clinical and histopathologic aspects of hysterectomized patients in the Chungnam area, 228 hysterectomized specimen, performed at private clinics, were collected at the Department of Pathology, Chungnam National University School of Medicine, from 1973 to 1979. The results were as follows: 1. In the type and procedure of operation of total 228 cases the highest incidence was total hysterectomy with salpingectomy and oopoorectomy, and was 71.9%(164 cases), and next was total hysterectomy, and was 19.3% (44 cases). 2. The highest age incidence was at 40th age groups, and was 52.6%/(120 cases) and next was at 30th, 25.4%(58 cases) and at 50th, 16.2%(37 cases), respectively. 3. The most frequent clinical chief complaint was genital bleeding, and was 40.4% (92 cases), and next was abdominal mass, 22.4% (51 cases), and pain or discomfort, 19.3% (44 cases), and leukorrhea, 11.4% (26 cases), respectively. 4. The most frequent pathologic lesion in the uterine cervix was nonspecific cervicitis, and was 73.0% (157 cases), and the next, nahothian cyst, 32.6% (70 cases), and squamous metaplasia, 30.7% (66 cases), respectively. The most frequent tumor in the cervix was squamous cell carcinoma, and was 14 cases (6.5%), and the next, benign tumor, 7 cases (3.3%), carcinoma in situ, 5 cases(2.3%), respectively. The most frequent lesion in the uterus was uterine adenomyosis, and was accounted 55.6% (104 cases), and the next, leiomyoma, 26.3% (60 cases), and endometrial hyperplasia, 23.2% (53 cases), respectively. The most frequent lesion in the salpinx and ovary was corpus luteum cyst, and was 35.1%(60 cases), and the next, follicular cyst, 21.1% (36 cases) and salpingitis isthmica nodosa, 20.5% (35 cases), respectively. The frequent tumor in the ovary was cystadenoma and fibroma, and was 6 cases (3.5%) in each, and the next, metastatic carcinoma, 3 cases (1.8%), and teratoma, 2 cases (1.2%), respectively.

低體溫犬의 循環血液量에 關한 硏究

崔漢鐘 慶北大學校 醫科大學 1967 慶北醫大誌 Vol.8 No.2

Sixty-five dogs were cooled to 24-26℃ of esophageal temperature by body surface cooling technics with ice water and rewarmed with hot water (46-48℃). Dogs were divided into three groups: Group 1 (30 dogs), in which simple cooling and rewarming were carried out, group 2 (20 dogs), in which total circulatory occlusion was added and group 3 (15 dogs), in which splenectomy was performed prior to cooling. Hematocrit, red cell volume, plasma volume and circulating blood volume were measured. Plasma volume was measured by using RISA. Also arterial blood pressure, venous pressure, and cardiac output by Fick principle were determined. Results were as follows: 1. Hematocrit was not altered during cooling but increased during rewarming in group 1. It was increased in the period of cooling and rewarming in group 2, however in group 3, it was decreased after splenectomy, cooling and rewarming. 2. Red cell volume was not changed significantly in group 1, while it was decreased during rewarming in group 2. In group 3, it decreased after splenectomy, cooling and rewarming. 3. Plasma volume was decreased mean value of 13.3% at 25℃ of body temperature and 10.4% during rewarming in group 1. It was markedly decreased after circulatory release and during rewarming (33.6%) in group 2. In group 3, decrease of plasma volume was less pronounced than group 2. 4. Circulating blood volume was decreased mean value of 9.8% in group 1, but decrease of 11.6% and 30.4% were noted during cooling and rewarming respectively in group 2. In group 3, it decreased up to 32.4% in the cooling period. 5. In all groups, decrease of arterial blood pressure and cardiac output was greater than that of circulating blood volume. No significant changes in venous pressure were found.

慢性骨盤痛에 對한 脊椎腔內 Phenol 注入療法

崔漢鍾,韓百來,金仁顯,徐哲星,韓柄斗 大韓産婦人科學會 1964 大韓産婦人科學會雜誌 Vol.7 No.2

低體溫犬의 循環血液量에 關한 硏究

崔漢鍾 慶北大學校 醫科大學 1967 慶北醫大雜誌 Vol.8 No.2

Stein-Leventhal Syndrome의 1例

韓柄斗,李秀年,崔漢鐘 大韓産婦人科學會 1963 大韓産婦人科學會雜誌 Vol.6 No.6

妊娠과 血淸 Ferritin

李熙東,李玧伊,崔漢鍾 충남대학교 의과대학 지역사회의학연구소 1982 충남의대잡지 Vol.9 No.2

Serum. ferritins were measured for the pregnant women living in Daejeon area who were thought to be middle class in socioeconomic status. Serum iron and hemoglobin values were also checked at the same time to compare with the serum ferritin. Results were as follows. 1. Serum ferritin values were decreasing in the early(28.3±17.1 ng/ml) and middle (22.8±14.7 ng/ml) trimester, but increasing again in the last (25.5±16.3 ng/ml) trimester. Rates of below 12 ng/ml in the first, second and third trimester were 25.0%, 41.2% and 31.4% respectively. 2. In the last trimester there were no differences between the weekly values from 38th to 42nd, in serum ferritin as well as serum iron and hemoglobin. 3. As the parity increases serum ferritin values were decreasing; para 0 of 26.5±15.7 ng/ml, para 1 of 22.2±16.6 ng/ml, para 2 of 20.1±14.1 ng/ml and para 3 or more of 17. 6±1.7 ng/ml. Serum iron and hemoglobin values showed no relationship.