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위 (胃) 내시경 (內視鏡) 검사 (檢査) 14 , 389 예에 대한 임상 (臨床) 연구
함준수(Joon Soo Hahm),박경남(Kyung Nam Park),이민호(Min Ho Lee),이성준(Seong Joon Lee),오수철(Soo Chun Oh),한덕호(Duck Ho Han),이종철(Jong Chul Lee),기춘석(Chun Suhk Kee) 대한소화기학회 1985 대한소화기학회지 Vol.17 No.1
N/A Clinical studies were carried out on 14,389 cases who had taken gastrofiberscopic examination, biopsy and X-ray from May, 1969 to May, 1984 in Han-Yang University Hospital. The results obtained were as follows; 1) Of total 14,389 cases, 7,916 were male and 6,473 were female. 55.1%, of the cases were in the 3rd and 4th decade. 2) Of total 14, 389 cases, 13, 615 showed abnormal endoscopic findings. In abnormal cases, male to female ratio was l.2: l.3) The incidence of single organ involved was 84.8% and multiple organs involved was In single organ involved cases, the most common site of disease was stomach and in multiple organ involved cases, the prevalent sites of lesions were stomach and duodenum. 4) The most frequent disease of stomach was gastritis followed by gastric ulcer. In the cases of duodenum, the most common disease was duodenal ulcer and the next was duodenitis. 5) The most prevalent disease was the chronic gastritis, and the frequency of the other upper gastrointestinal diseases was acute gastritis, gastric ulcer, stomach cancer and duodenal ulcer in orders. 6) The most frequent type of chronic gastritis was superficial gastritis. 7) Among the total cases which had been taken blood-typing, the incidence of most upper gastrointestinal diseases was not related to each blood type. But blood group 0 was common in peptic ulcer disease and blood group A in stomach cancer. 8) The clinical symptoms and signs were of no significant aid for the differential diagnosis of the various upper gastrointestinal diseases.
자동차용 엔진 쿨링 팬 모터 PWM 제어기의 수명 해석을 위한 가속 시험법 개발
임정혁(Jeong-hyeok Lim),신민경(Min-gyung Shin),이상훈(Sang-hoon Lee),박상욱(Sang-wook Park),이영수(Young-soo Lee),손정현(Jeong-hyun Son),한덕호(Duck-ho Han) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
In order to assess the reliability of the cooling fan motor PWM controller for automobiles, accelerated life test model and procedure are developed. By using this method, failure mechanism and life distribution are analyzed. The main results are as follows; 1) the main failure mechanism is degradation failure that is, capacity degradation of a capacitor by high temperature. 2) the life distribution of the PWM controller is fitted well to Weibull life distribution and the accelerated life model of that is fitted well to Arrhenius model. 3) at the result of the life distribution, accelerated life test method is developed, and test time for life assessment will be shortened by 5,200hours by this test method.
韓德鎬 연세대학교 대학원 1975 원우론집 Vol.3 No.1
One thousand and three hundred and thirty-two cases of diabetes mellitus who were admitted to Yonsei Medica1 Center, Severance Hospital during the period from July 1963 to June 1973 were studied and the following results were obtained. 1. During the period, the total inpatients were 119, 763, giving and overall incidence of the diabetes mellitus 1.11%. The male patients dominated the female by the ratio of 2.3 to 1. The peak incid-enceoccurred in 6th decade. 2. Obese patients (over 10% of ideal body weight) were 52.1% of diabetes mellitus. 3. Probable precipitating factors of diabetes mellitus were obesity (18.8%), heredity (8.3%), and in fection (5.7%) in order of frequency. The precipitating factors could not he elicited in 36.7%. 4. The common symptoms of the onset of the diabetes mellitus were thirst (39.1%) , weakness (36.5%) and polyria (35.7%). 5. The associated complication of the diabetes mellitus were infection (32.3%), hypertension (29.6%) and neuropathy (22.9%), Diabetic coma was encountered in 1.5%. 6. The mild fasting hyperglycemia (120-150mg%) was seen in 32.3% of diabetics. 7. The Hypercholesterolemia (over 200mg%) was seen) in 51.9% of the diabetic. 8. Although therapy had a varyin geffect depending on the therapeutic regimen, there was better effect in the diabetics with lower fasting blood sugar level. 9. The therapeutic effect was bettor in the obese diabetics than the non- obese.
복수의 성상을 감별진단함에 있어서 혈청과 복수의 albumin 농도 비와 LDH 동위효소의 의의
박경남,이성구,이동후,기춘석,한덕호,윤인혁,권미선,함준수 대한내과학회 1986 대한내과학회지 Vol.30 No.3
The earlier approach used in the differential diagnosis of ascites consisted of separting fluid based on the conceniration of protein, defining fluid with protein level less than 2.5 gm/dl as transutate and fluid with higher protein level as exudate. In 1974, however, Sampliner and Iber reported that high protein ascites occurred in 12% of patients with chronic liver disease, and there have been many published literatures on the high protein ascites associated with chronic liver disease, so the differential diagnosis of ascites remains a clinical problem. 30 patients with chronic liver disease and 22 patients with malignant neoplasm were studied. The ascitic total protein level in the group with malignant neoplasm and those with chronic liver disease was 3.41±1.62 gm/dl and 1.09±0.77 gm/dl respectively, ascites to serum ratio of total protein level(0.51±0.24 and 0,15±0.11), ascitic fluid lactic dehydrcgenase level(682±646 U/L and 140±118 U/L), ascites to serum ratio of lactic dehydrogenase level(1.06±0 0.33±0.21), and serum-ascites albumin gradient(0.88±0.62 and 4.77±1.25). All the above parameters were statistically significant. Serum-ascites albumin gradient overlapped the least and showed the highest sensitivity and specificity. The comparison of ascitic fluid lactic dehydrc-enase electrophoretic pattern showed higher levels of LDH4 and LDH5, in the group with malignant neoplasm. The statistical significance, however, is to be determined with a large sample-sized study,
각종 위장관 악성 종양에 있어서 CA 19-9 의 임상적 의의
박경남,이민호,이성준,이성구,이종철,함준수,한덕호,기춘석,이동후,윤인혁 대한내과학회 1986 대한내과학회지 Vol.30 No.2
We have studied the clinical significance of tumor marker CA 19-9 in various gastrointestinal malignancies compared with normal control, benign diseases, and other malignancies. The results were as followings; 1) There was no age and sex difference in CA 19-9 serum level in control and various gastrointestinal malignancies. 2) There was somewhat increase in CA 19-9 serum level in various gastrointestinal malignancies but not statistically significant. In metastatic cancer, the serum levels of CA 19-9 were increased significantly. 3) The specificity of CA 19-9 in various benign diseases was 86.1% 4) The sensitivity of CA 19-9 in various gastrointestinal malignancies including local and metasis was 42.5%, but in case of metastasis, the sensitivity increased to 78%. 5) When CEA and Calg-9 were checked simu1taneously in diagnosis of metastatic stomach ca., the sensitivity was 88.2%. 6) All cases of pancreatic cancer and cholangiocarcinoma studied, showed marked increase of serum level of CA 19-9.