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이학,홍창섭,오재윤 한국기계기술학회 2016 한국기계기술학회지 Vol.18 No.6
This paper presents development of the new haptic device for virtual wall collision test. Mathematical model of the proposed system considering virtual wall collision is developed and tuned by comparing force responses from simulation and experiment with free motion. To verify the effectiveness of the proposed model, a range of collision tests against virtual wall are accomplished, conditioned on different collision speeds to virtual wall. In addition, hybrid PI control scheme is applied to improve the performance of the proposed haptic system in virtual wall collision experiments.
李學堂(Li Xuetang) 가천대학교 아시아문화연구소 2006 아시아문화연구 Vol.11 No.-
Scholarly and refined literature is the most outstanding characteristics of Yi Deokmoo's literature and the important standard of his literary criticism. His ideological base is the Confucian school of Cheng-Zhu Li Xue. It is also the reason why he discriminate against the Buddhism and Taoism factor at literary criticism. His recognition and criticism on poetry is closely related to his ideological base. According to this paper, it is investigated that there are four characteristics by checking Yi Deokmoo's poetry. poetry recognition and poetry criticism. 1. Yi Deokmoo was a scholar known the spirit of times on poetry and manifested a strong awareness of the present age. 2. He all-embraced or gave up varied styles of poetry at the existing standard. 3. though the poetry was thought as one skill. Yi Deokmoo did not rigidly adhere to poetry forms. He agreed with the importance of individual artistic talent. 4. Since he suspected the concept which the poetry described human disposition, he separated the poetry moral character from the human conducts in his literary criticism. The seek of scholarly and refined literature asked him to establish the important standard to distinguish and appraise the right and wrong, the gain and loss on poetry.
이학중,남양일,태경희,전영만 대한소화기학회 1978 대한소화기학회지 Vol.10 No.1
A clinical study was done on I04 cases of gallstones who were treated as in-patients at the National Medical Center, Seoul, Korea over a period of 4. 5 years, from Jan. 1974 to July 19i'7 and the following results were obtained. 1. The ratio between male and female was 1: 2. 6 with female preponderance and the peak age incidence were in the 5th and 6th decade. 2. The chief complaints were RUQ pain, epigastric pain, radiating pain, chill and vomiting in order of frequency. RUQ tenderness, fever, jaundice and epigastric tenderness were the most common physical findings in order of frequency. 3. In 60.6% of the cases, the duration of illness was less than 1 year and in 13.5%, more than 10 years. 4. In 68.0% of the cases, the frequency of the biliary colic were less than 3 times. 5. Laboratory findings showed less than 2.0 mg% of total bilirubin in 64.4% of the cases, more than 50% of the direct bilirubin in 83.3%, more than 4 B.U./ml of alkaline phosphatase in 85.6%, less than 40 U/ml of SGOT and SGPT in 51.0% and 58.4% respectively, within normal limits of TTT and prothrombin time in the majority, less than 10g% of Hb in 18.3% and more than 15,000/㎣ of the WBC in 14.4%. 6. In 33.3% of the operated cases the stones were located in the gall bladdler, in 25.6% in the common bile duct, in 5.1% in the intrahepatic duct and in 35.9% in more than 2 places. 7. In X-ray studies, the rates of positive detection were 8.0% in simple abdomen, 7.9% in oral cholecystography, 8.3% in IV cholangiography and 80.0% in percutaneous transhepatic cholangiography. 8. The associated diseases with gallstones were cholecystitis, GB empyema and cholangitis in order of frequency. 9. The mortality rate was 2.9% and the causes of death were acute hepatic failure, postoperative pneumonia and septicemia.