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구-막대 시스템에서 CDM을 사용한 강인한 제어기 설계
이호기,박용식,정찬수 崇實大學校 1999 論文集 Vol.29 No.1
All the controller design problem for linear time invariant dynamic system boils down to proper selecting the characteristic polynomials and numerator polynomials for concerned input-output relations. The propel selection of the characteristic polynomial is not so difficult, if only stability and response are to be satisfied, but it becomes complicated when robustness issue is added. The CDM could be a solution to this problem. CDM which is developed by Lipatov's conditions for stability and Kessler's standard form is easy to process of the controller design, especially it is more useful when the specifications are the settling time, rising time and overshoot. In this paper was used CDM design a simple but robust controller of the ball and beamsystem. The ball and beam system is highly nonlinear system. And it's linear transfer function used to design the controller. But CDM proved to be a solution to design even if there are some uncertainties like this linearized ball and beam system by simulations.
인터넷전문은행 이용의도에 관한 실증적 연구 : 통합기술수용이론(UTAUT)을 응용하여
이호기,한문성 한국상업교육학회 2019 상업교육연구 Vol.33 No.1
The purpose of this study is to provide various implications for Internet Primary banks by empirically analyzing the influence of users’ psychological factors or demographic characteristics in using banking services. UTAUT(Unified Theory of Acceptance and Use of Technology)2 proposed by Venkatesh et al(2012) has been used in various fields due to its high explanatory power. However, there is not much use case in research on Internet Primary Bank. Especially in Korea, there is no empirical analysis on the survey of actual Internet Primary Bank users. Therefore, this study focused on the suggestion of a research model suitable for Korean Internet Primary Banks based on UTAUT2 model and conducted a questionnaire survey on 306 customers of Kakao Bank & K-bank. As the independent variables, ‘trust’ which is important for financial consumers to do online and mobile transactions is added to UTAUT2 varibles such as performance expectation, effort expectation, social influence, facilitation condition, hedonic motivation and habit. Gender, age, occupation, and chosen bank were used as moderator variables. As dependent variable, intention to use was adopted. As a result of the path analysis through the structural equation model, the performance expectation and social influence, facilitation condition, hedonic motivation, and trust have positive influence on intention to use, The habit was found to have no significant effect. In order to examine the moderator effect of gender, age, occupation, and chosen bank, multiple group analysis was conducted. As a result, it showed that there was a moderator effect only on gender and age.
이호 회계사의 세금 칼럼-서류를 챙기면 양도소득세 줄일 수 있다.
이호,Lee, Ho 한국주택협회 2007 주택과 사람들 Vol.206 No.-
공익사업용으로 수용되는 특별한 경우<기준시가 적용>를 제외하고는 올해부터 양도소득세를 계산하는 경우에 실지거래가액을 적용한다. 실지거래가액으로 앵도소득세를 계산하는 경우에는 부동산을 취득하는 시점부터 관련 증빙자료를 꼼꼼히 챙기고 보관해야 세금을 추가 부담하는 일이 없다.
이호 회계사의 세금 칼럼-재산세와 종합부동산세 훑어보기
이호,Lee, Ho 한국주택협회 2007 주택과 사람들 Vol.207 No.-
같은 보유세지만 재산세와 종부세는 과세 주체와 납부 시기, 과세 대상 등 모든 면에서 차이가 있다. 그러나 일정액 이상의 부동산을 소유하고 있다면 이 두 세금을 피해갈 수 없으므로 저확하게 파악하도록 하자.