• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2001.05a
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• pp.504-509
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• 2001

CD-ROM drive is improved in rotation speed up to 10,000 rpm. But Vibration and Noise are also increased simultaneously more and more. So many attempts are tried to reduce the unexpected effects. Most attempts are not enough to cover the increasement of Noise and Vibration. Merely availed tries are accumulated in many part and it makes the structure complicated. The Axiomatic approach could arrange the order of design and estimate the optimum design in good oder. In Axiomatic Approach, the composition is divided by Customer Requirement, Functional Requirement, Design Parameter and Design Matrix in large portion. This method also could show more effective way to design before making a prototype.

• The Journal of the Korea Contents Association
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• v.2 no.3
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• pp.31-40
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• 2002

In this thesis, the interactive multimedia contents service system is proposed. The interactive multimedia contents service system which added the on-line merit on the off-line merit of CD-ROM title can transfer messages among users and update contents immediately. The Interactive multimedia contents service system which Integrated the CD-ROM title and Internet sonics is possible to use in on-line / off-line. The proposed system more improved the fault of CD-ROM title in the conventional main media, the search environment by using mutual correlation of the utilization and method of the Internet CD-ROM title.

• 정보저장시스템학회:학술대회논문집
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• 2005.10a
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• pp.235-240
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• 2005

In this paper, vibration suppression of a CD-ROM main base with piezoelectric shunt circuit is studied. Admittance is introduced to predict the performance of piezoelectric shunt damping. Numerical admittance obtained by commercial finite element code, ANSYS, correlates well with experimentally measured one. Multi-mode piezoelectric shunt damping is realized based on the target mode and frequencies obtained by the admittance analysis. Experimental results prove that admittance of the piezoelectric structure is capable of predicting the performance of piezoelectric shunt damping and the vibration of the main base with the piezoelectric patches is reduced effectively.

• Proceedings of the Korean Society for Information Management Conference
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• 1995.08a
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• pp.125-128
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• 1995

CD-ROM을 이용하여 전문도서관의 정기간행물을 평가할 목적으로 Current Contents : Life Science의 44개 SDI 검색결과와 Biotechnology 및 Biochemistry ＆ Biophysics Citation Index 에서 생명공학연구소 논문 151편의 참고문헌을 대상으로 자관 소장자료와 비소장자료로 구분하여 순위표를 만들었다. 이 순위표를 가지고 정기간행물의 자관 소장확률, 예산 증감시 정기간행물의 신규구독 및 구독중단 우선순위, 두 CD-ROM의 공통 소장/비소장 정기간행물을 조사하였다. 연구결과 생명공학연구소에 유용한 생산적인 비소장 정기간행물과 비생산적인 소장 정기간행물을 식별할 수 있었다. 이 자료는 예산 증감시 정기간행물 구입정책에 반영하면 새로운 장서구성 정책의 기초자료로 활용될 수 있다.

• Transactions of the Society of Information Storage Systems
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• v.2 no.1
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• pp.7-12
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• 2006

In this paper, vibration suppression of a CD-ROM main base with piezoelectric shunt circuit is studied. Admittance is introduced to predict the performance of piezoelectric shunt damping. Numerical admittance obtained by commercial finite element code, ANSYS, correlates well with experimentally measured one. Multi-mode piezoelectric shunt damping is realized based on the target mode and frequencies obtained by the admittance analysis. Experimental results prove that admittance of the piezoelectric structure is capable of predicting the performance of piezoelectric shunt damping and the vibration of the main base with the piezoelectric patches is reduced effectively.

• KLA journal
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• v.30 no.3 s.256
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• pp.22-33
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• 1989

제1장에서는 CD-ROM의 호환성에 대해서 생각하였으며 특히 물리포맷과 논리포맷의 두가지가 있음을 기술하였고 제2장에서는 논리포맷의 표준화가 어떻게 시작되었는가에 대해 언급하였다. 제3장에서는 미국에서 검토가 진행되고 있는 표준규격안의 내용을 소개하고 제4장에서는 CD-ROM과 CD-I 포맷과의 관련에 대해 기술하였다.

• Digital Contents
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• no.10 s.41
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• pp.85-88
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• 1996

개교 50주년 기념 사업의 일환/전국 대학 최초의 CD-ROM 동문 명부 제작에 성공/다채로운 영상과 정지화상을 쉽게 살펴볼 수 있어/수익금은 모교 발전 기금으로 조성 예정

• Digital Contents
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• no.12 s.7
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• pp.18-18
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• 1993

93년 11월 멀티미디어 전문 리포트인 멀티미디어 모니터에 충격적인 기사가 실렸다. 영어를 그대로 사용하면 "In the CD-ROM market, all that glitters is not consumer multimedia"이다. 내용을 일부 요약하면 다음과 같다.

• Journal of Engineering Education Research
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• v.6 no.1
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• pp.22-31
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• 2003

The purpose of this study was to develop CD-ROM so that students can understand 8051 Microprocessor unit easily in electronics circuit practice subject of technical high school. The study gives students, who have difficulties in learning, a chance for self-directed and supplementary learning by suggesting interface process with 8051 Practice Kit. To achieve these purposes, literature survey, collecting textbooks and materials, development of CD-ROM were gradually carried out. Each steps were as follows: Firstly, in literature survey, concepts and characteristics of multimedia and application to class were reviewed. Secondly, text contents on 8051 Microprocessor unit were analyzed, main contents were extracted and graphic, sound, animation were made. It was consisted of eight basic learning subjects, and designed to flow systematically. In this study, we presented a kind of teaching-learning material by developing CD-ROM in 8051 microprocessor unit in electronics circuit practice subject as a central matter. This material will be able to help technical high school students in learning

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2000.06a
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• pp.492-498
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• 2000

As the disk rotation speed increases in information storage devices, aerodynamically excited disk vibration is induced by airflow around the disk. This paper investigates theoretical and experimental studies on the disk flutter instability in CD-ROM drives. The effect of airflow on the disk vibration is modeled as the distributed damping and lift forces. By analyzing the eigenvalue problem of the aero-elastic coupling model, we introduces a novel technique to predict the flutter speed by comparing experimental natural frequencies with analytical ones of a disk rotating in vacuum. The new method predicts that the vibration mode with two nodal diameters in a CD disk experiences the first flutter instability at 12,000 rpm.