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김광근,최성필,김영찬,양보석,Kim, Kwang-Keun,Choi, Sung-Pil,Kim, Young-Chan,Yang, Bo-Suk 한국유체기계학회 2000 한국유체기계학회 논문집 Vol.3 No.3
It is well known that the finite element analysis often has an inaccuracy when it is in conflict with test results. Model updating is concerned with the correction of analytical model by processing records of response from test results. The famous one of the model updating methods is FRF sensitivity method. However, it has demerit that the solution is not unique. So, the neural network is recommended when an unique and exact solution is desired. The generalization ability of radial basis function neural network is used in model updating. As an application model, a cantilever and a rotor system are used. Specially the machined clearance($C_p$) of a journal bearing is updated.
천연해수에 침지된 콘크리트 내부의 철근부식거동에 미치는 염분의 영향에 관한 전기화학적 연구
김광근(KWANG-KUEN KIM),류보현(BOH-HYUN RYU),김성종(SEONG JONG KIM),김기준(KI-JOON KIM),문경만(KYUNG MAN MOON) 한국해양공학회 2000 韓國海洋工學會誌 Vol.14 No.4
When the concrete structures were being made with sand containing chloride ion it was well known that corrosion rate of reinforced steel embedded in concrete with chloride ion was higher than that of concrete with no chloride ion. In this study, the operation of Friedel salts affecting the corrosion behavior of reinforced steel embedded in cement mortar was investigated with electrochemical view. Corrosion potential of reinforced steel embedded in cement mortar with sand containing chloride ion was shifted noble direction than that of cement mortor with no chloride ion after immersed 5 month in natural sea water and also corrosion current density decreased with shifting corrosion potential to noble direction. However Friedel salts appeared from surface to 2.5㎝ of inside direction of mortar specimen, which is located at 11.15˚(2 θ) in XRD analysis and the amount of Ca(OH)2 by SEM photograph in cement mortar with chloride ion was larger than that of cement mortar with no chloride ion. Eventually it is suggested that Friedel salts was resulted from chloride ion and it acted as the corrosion inhibitor.
호텔종사원의 성장욕구, 직업존중감이 경력몰입과 고객지향성에 미치는 영향
김광근(Kim Kwang-Geun),김용철(Kim Young-Cheol) 대한경영학회 2007 대한경영학회 학술발표대회 발표논문집 Vol.2007 No.1
본 연구는 호텔 종사원들을 대상으로 종사자들의 개별적인 특성(성장욕구, 직업존중감)에 따른 평소 경력몰입이 어떠하며, 대고객을 위한 지향성에 어떠한 영향을 미치는지를 분석하고자 한다. 그 결과, 성장욕구는 경력몰입에 영향을 미치지 않고, 직업존중감은 경력몰입에 영향을 미치는 것으로 나타났으며, 경력몰입은 고객 지향성에 영향을 미치는 것으로 나타났다. 아울러 직업종중감은 경력몰입을 통하여 고객지향성에 영향을 미치는 것으로 나타났다. 따라서 호텔기업 종사원들의 개인적인 성장욕구와 직무특성상의 직업존중감에 다른 경력몰입 요인과 고객지향성의 유의한 영향관계를 분석해 봄으로써 앞으로 전략적인 호텔경영 방법의 수립에 기여하고자 한다. The purpose of this study was broaden our outstanding about the antecedents for Growth needs, Job-esteem, Career Commitment and Customer orientation of Hotel Employees. The sample size of this study were 286 and workers selected from hotel industries. The data analysis was done by SPSS/WIN 14.0 and AMOS 5.0 package. The result of the analysis revealed that the proposed model was supported by a variety of indicator(χ²=244.429 df=86, χ²/df=2.842, p=.000, GFI=.902 AGFI=0.892, CFI=0.968, RMR=0.038, RMSEA=0.080, NFI=0.952, IFI=0.969). All of paths were confirmed the estimated results, but except Growth needs path. An attempt was made to propose a model regarding the relation between Growth needs, Job-esteem, Career Commitment and Customer orientation of Hotel Employees, and examine the goodness of fit between model and empirical data by the method of convariance structure analysis.
金光根(Kim, Kwang geun),吕,昌源(Yeo, Chang won) 실천경영학회 2006 실천경영연구 Vol.1 No.1
As people have had morespare time and the society has been materially civilized, their participation in tour activities has increased and the tour activities have offered them so much satisfaction in the spiritual, cultural, and material aspects. Even though the tourist industry has developed into the most profitable industry in the world, the relationship between the tourism and the environment has been ignored in the traditional tourist industry. Since 1980s, the profound research on the relationship has been studied and therefore the tourist industry has been on the stage of sustainable development and the Ecotourism and the Culture tourism has risen as a solution. Therefore, in this paper the theory and case study of Ecotourism have been studied on the basis of the developing and developed countries