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이대희(D.H. Lee),차윤석(Y.S. Cha),이대근(D.K. Lee),이준식(J.S. Lee),임창율(C.Y. Lim),김영생(Y.S. Kim),배종렬(J.R. Bae) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
An innovative crankless steam engine utilizing the rack and pinion has been developed to improve the thermal efficiency of the engine. This newly developed crankless steam engine converted the thermal energy of steam to the electrical power output by way of the rack and pinion instead of the conventional crank. Straight motion due to the rack changed to the rotary motion by the pinion gear of the clutch. The crankless steam engine performance was tested with steam at 5 to 6.5 ㎏<SUB>f</SUB>/㎠ and the power output varied from 2.4 to 8.0 ㎾. It follows that the maximum efficiency of the crankless steam engine has reached 74 % when the steam inlet pressure is 6.5 ㎏<SUB>f</SUB>/㎠ and the power output is 8.0 ㎾. The maximum efficiency of this engine is more than 2 times as high as the existing conventional crank engine.
김영생 ( Young Saing Kim ),이순일 ( Soon Il Lee ) 대한내과학회 2021 대한내과학회지 Vol.96 No.5
Cancer of unknown primary (CUP) is a heterogenous group of cancers for which the anatomical site of origin is unidentifiable on the basis of standard evaluation and imaging. CUPs account for 2-5% of all malignancies and are characterized by early metastatic dissemination, aggressive clinical course, and poor response to palliative chemotherapy. It is important to identify favorable-risk CUP patients (10-20%), as they harbor chemo-sensitive and potentially curable tumors, and may require long-term disease control. Empirical combination chemotherapy has traditionally been the standard first-line therapy for most patients (80-90%), who do not belong to favorable-risk subsets; however, this approach has only modest benefits, with a median overall survival of < 1 year. Evidence supporting the clinical use of molecular tissue of origin (TOO) tests is still lacking. Two recent randomized clinical trials failed to show the benefit of TOO-based site-specific therapy over empirical chemotherapy. In an era of precision medicine, the use of comprehensive molecular profiling will provide opportunities to identify patient subsets who are susceptible to targeted therapies and immunotherapies. (Korean J Med 2021;96:408-414)
김영생(Young Saeng Kim),이종원(Jong Won Lee),임병천(Byung Chun Yim) 한국유럽학회 2000 유럽연구 Vol.11 No.1
The social system and it`s dynamics bring the structural process changes enormously. They acquire competence to survive and remain competitive under the market economic conditions. One of the main problems during the recent development of financial institutions in Europe and Korea is that the organizational structure is not able to grow simultaneously and organizational forms are not adequate to the changed new environments. As results there are lags in the handing over informations and missing clear definition of areas of competence. Beside many technical changes by the implementation of new technologies the dynamic system theory especially self-organization was improved as successfiil also in financial institutions.