http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 박재용 (검색결과 1,211 건)
- 무료
- 기관 내 무료
- 유료
-
박재용,황승민,임민규,오영규,박재용,한석영 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-
This paper presents a reliability-based topology optimization (RBTO) using bi-directional evolutionary structural optimization (BESO). An actual design involves uncertain conditions such as material property, operational load and dimensional variation. Deterministic topology optimization (DTO) is obtained without considering of uncertainties related to the uncertainty parameters. However, the RBTO can consider the uncertainty variables because it has the probabilistic constraints. In this paper, the reliability index approach (RIA) is adopted to evaluate the probabilistic constraint. RBTO based on BESO starting from various design domains produces a similar optimal topology each other. Numerical examples are presented to compare the DTO with the RBTO.
-
-
박재용,임민규,오영규,박재용,한석영,Park, Jae-Yong,Im, Min-Kyu,Oh, Young-Kyu,Park, Jae-Yong,Han, Seog-Young 한국생산제조학회 2010 한국생산제조학회지 Vol.25 No.5
Reliability-based topology optimization (RBTO) is to get an optimal topology satisfying uncertainties of design variables. In this study, reliability-based topology optimization method is applied to the inner reinforcement of vehicle's hood based on BESO. A multi-objective topology optimization technique was implemented to obtain optimal topology of the inner reinforcement of the hood. considering the static stiffness of bending and torsion as well as natural frequency. Performance measure approach (PMA), which has probabilistic constraints that are formulated in terms of the reliability index, is adopted to evaluate the probabilistic constraints. To evaluate the obtained optimal topology by RBTO, it is compared with that of DTO of the inner reinforcement of the hood. It is found that the more suitable topology is obtained through RBTO than DTO even though the final volume of RBTO is a little bit larger than that of DTO. From the result, multiobjective optimization technique based on the BESO can be applied very effectively in topology optimization for vehicle's hood reinforcement considering the static stiffness of bending and torsion as well as natural frequency.
-
데이터 베이스 프로그래밍을 위한 언어 설계에 관한 연구
박재용 한국기업경영학회 1998 기업경영연구 Vol.5 No.2
The theory of structured techniques in the development of software has been used from the middle of 1970s to th 1980s. The purpose of this paper is to design a language for database programming. This paper presents a method to design and implement a recovery manager in object-oriented database systems. Data in object-oriented databases may be considered to be either short objects or the long objects that have their own different properties so that the system should provide two different recovery mechanisms to maximize the efficiency. To select the most appropriate recovery mechanism for each of the two objects, the advantages and disadvantages of the conventional recovery mechanisms are surveyed. Based on this, the paper suggests a logging mechanism for the short objects and a shadowing mechanism for the long objects.
-
한글 BASIC 프로그래밍 언어의 유효성 분석에 관한 연구
박재용 한국기업경영학회 1998 기업경영연구 Vol.5 No.1
The purpose of this study was to develop the Hangul programming language and compare persons which learnd programming language by using Hangul programming language with persons who by using traditional programming language. The hypotheses are as follows : Hypothesis 1 : Hangul programming language group will receive significantly higher scores on achievement then those of traditional programming language group. Hypothesis 2 : In the Hangul programming language groups, the group which do not know English before will receive significantly higher scores on achievement then those of group which understatand English already. The subjects of this study were sixth grade persons at a primary school and first grade persons at the inhavitants of in Seoul. The tools used in this study were achievement test and questionnaire. The statistics were processed with t-test by SPSS package. The findings of this study are as follows : First, persons of Hangul programming language group received significantly higher scores (t=5.14, p<0.005) on achievement than those of traditional programming language group from primary school children. Second, persons of Hangul programming language group was not significantly different on scores from the inhavitants of in Seoul. Third, the result of questionnaire showed that Hangul programming language have good effacts, in making persons who do not know English at all understand computer programming.
-
HTML 언어를 이용한 가상강좌 프로그래밍에 관한 연구
박재용 한국세무회계학회 1998 세무회계연구 Vol.5 No.1
본 연구에서는 향후 가상대학에서 구축하여야 할 가상강좌에 따른 강의실 구조와 운용사례를 소개한다. 이는 정보중심대학으로 발돋움하고 있는 본 대학에서 시범적으로 시행한 가상강좌의 전면적인 운용을 위한 선험적인 연구로서 HTML언어를 이용하여 WWW상의 교과목 홈페이지 구상을 소개하였다. 특히 본 대학에서 시범적으로 운영한 실질적인 사례를 소개함으로써 향후 가상시대에 일반화 될 가상대학의 운영을 위한 교수들에게 실질적인 운영모델을 제시한 것이다. 이를 통하여 본 연구에서는 이를 바탕으로 가상강좌 개설을 위한 교수들에게 대한 동기부여 및 운영 프로그래밍에 대한 자신감을 고취하는데 기여하고자 하였다. 그러나 이의 실시에 따른 문제점에 대한 대책으로 향후 가상강좌의 목표를 효율적으로 달성하기 위한 현실적인 방안은 완전히 개념적인 가상강의실에서만 강의가 이루어지는 것 보다는 정규수업과 병행해서 이루어져야 한다. 왜냐하면 현행 추진되고 있는 가상대학의 설립 및 운영은 평생교육의 한 방편으로 활용될 가능성이 크므로 정규 수업에서 활용할 수 있는 전면적인 모델로는 부적절하다는 견해도 있기 때문이다. 특히, 아직 우리나라의 경우 학벌위주의 사회적, 문화적 인식이 팽배해 있을 뿐만 아니라 가상대학에 대한 인식이 저조한 수준이므로 가상대학 또는 가상강좌에 대한 학점이수를 현실적으로 각 기업이나 조직에서 인정하지 않는 것도 해결과제로 남아 있기 때문이다. 따라서 가상대학의 운영에 필요한 모든 사회, 문화적, 시스템적 환경이 갖추어지더라도 현재와 같은 캠퍼스 중심의 대학을 능가할 수는 없다. 그러나 가상대학은 교육형태의 새로운 모델로 제시되어 나름대로의 교육적 가치는 존속할 것으로 본다.
-
-
Web 서버를 이용한 CourseWare프로그래밍에 관한 연구
박재용 한국전문가시스템학회 1998 학술대회 Vol.2 No.1
The developed courseware have been changing according to the educational environment effected 6y computer and communication technology. The teaching and learning by computers has made students actively participate in education. Using the multimedia, the students can paricipate in their study actively with more intellectual curiosity. The educational effect of multimedia and the use of WWW(World Wide Web) on the Internet make it over the limit of time and place and diversify the type of typical education managed classroom. Because the courseware developed until recently is hard to use in WWW. So, the new design of courseware in WWW is required. This paper is designed to improve the courseware which is based on the education-technology theory and characteristics of homepages. 5 kinds of frame to make the courseware easily fitting to HTML file is proposed and applied to make a courseware named general electronic data processing. According to the experience of the this courseware, we find the possibility of web courseware in education without the limit of time and space.
-
-
RISS
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
