• 오토저널
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• 제15권4호
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• pp.26-33
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• 1993

• Kyungpook Mathematical Journal
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• 제17권1호
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• pp.7-15
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• 1977

• 한국도서관정보학회지
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• 제44권1호
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• pp.201-225
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• 2013

메타데이터 요소들 사이의 매핑에 기반한 현재의 메타데이터 상호운용성 접근방식이 지닌 한계를 극복하기 위해, 본 연구에서는 마스터 데이터를 활용한 메타데이터 상호운용성 접근방식을 제안하고 있다. 이는 메타데이터 요소가 아닌 요소의 값을 기준으로 동일한 값을 지니는 요소를 마스터 요소를 중심으로 통합하는 방식이다. 이를 위해 마스터 요소 프레임워크를 구축하여 메타데이터 요소들을 계층적인 형태로 의미적으로 통합하고, 이를 기반으로 메타데이터 레코드 사이의 상호연결을 확보함으로써 메타데이터 상호운용성을 확보할 수 있다. 이는 메타데이터 상호운용성을 확보하기 위한 대안적인 방법으로 활용될 수 있다.

• IEIE Transactions on Smart Processing and Computing
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• 제1권2호
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• pp.117-124
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• 2012

A client collaboration (CC) system is proposed for a user relay system. The proposed scheme focuses on the management of transmit power and leakage interference. In the proposed CC system, edge users transmit signals to the masters considered as user relays. The masters relay the signals of the edge users to the base station using the resource blocks (RBs) that are assigned to the edge users. The leakage interference and power consumption were analyzed in the CC system. In addition, an optimal master location problem was formulated based on the signal-to-leakage-plus-noise ratio (SLNR). Because the optimal master location problem is quite complex, a sub-optimal master location problem was proposed and a closed-form sub-optimal master location was obtained. The edge users generate smaller leakage interference and power consumption in the proposed CC system compared to the system without the CC. The numerical results showed that the edge users generate smaller leakage interference and power consumption in the proposed CC system compared to the system without the CC, and the average throughput increases.

• 한국재난정보학회 논문집
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• 제16권2호
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• pp.211-222
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• 2020

연구목적: 재난안전 마스터플랜의 가이드라인을 제시하고, 이를 통한 지역안전지수 향상방안을 도출한다. 연구방법: 재난 관련 법률, 안전혁신마스터플랜, 국제안전도시지표와의 정합성 진단을 통해 지자체의 재난안전 관리체계를 수립하고 지역 특성과 분야별 재난관리 대책을 포함하는 재난안전 마스터플랜 가이드라인을 제시한다. 연구결과: 'G'기초지자체를 선정하여 재난안전 마스터플랜 가이드라인을 적용한 세부정책을 수립하고, 이를 통해 지역안전지수 개선방안을 도출한다. 결론: 지역안전지수 향상을 통해 지자체의 재난대응 역량을 강화한다.

• 한국정밀공학회지
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• 제21권12호
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• pp.13-20
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• 2004

Manufacturing process for the microfluidic device can include such sequential steps as master fabrication, electroforming, and injection molding. The laser ablation using masks has been applied to the fabrication of channels in microfluidic devices. In this study, manufacturing of polymer master and mold insert for micro injection molding was investigated. Ablation of PET (polyethylene terephthalate) by the excimer laser radiation could be used successfully to make three dimensional master fur nickel mold insert. The mechanism fur ablative decomposition of PET with KrF excimer laser $({\lambda}: 248 nm, pulse duration: 5 ns)$ was explained by photochemical process, while ablation mechanism of PMMA (polymethyl methacrylate) is dominated by photothermal process, the .eaction between PC (polycarbonate) and KrF excimer laser beam generate too much su.face debris. Thus, PET was adopted in polymer master for nickel mold insert. Nickel electroforming using laser ablated PET master was preferable for replication method. Finally, it was shown that excimer laser ablation can substitute for X-ray lithography of LIGA process in microstructuring.

• 한국도서관정보학회지
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• 제13권
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• pp.167-201
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• 1986

The purpose of this study is to provide the information for the developing rational curriculum that is necessary in the socio-cultural situation by comparativing and analyzing the library and information science education of India and Pakistan. The conclusions of the study can be summarized as follows: 1) It is desirable that Master's degree course and M. Phil. program in India, Post-graduate diploma course and Master's degree course in Pakistan should be integrated as Master's degree course. 2) It is desirable that the duration of Master's degree course should be extended. 3) The variously expressed papers that represented the same subject or content should be unified. 4) In Bachelor's level, India establishes the various papers of library and information science, but Pakistan offers largely the core papers. 5) It is desirable that papers of historical research, progressive reference service, and information science should established, and introductory papers should be united in introduction to library and information science. 6) In Master's degree course, Indian curriculum is more up-to-date and pertinent than Pakistan's. 7) Each university should establish the papers of types of libraries standing for characteristic of his university, and harmonize library science and information science. 8) The reason that curricula of two countries are different from each other is due to lack of inter-university cooperation and standard of curriculum, therefore it is required a continuing research and effort to su n.0, pplement and reorganize the curriculum.

• 대한기계학회논문집B
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• 제30권12호
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• pp.1139-1146
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• 2006

Light Oil Flow Standard System(LOFSS) in Korea Research Institute of Standards and Science(KRISS) was designed for oil flowmeter calibration. In order to extend the flow range from 120 $m^3/h$ to 200 $m^3/h$, the build-up technique was applied with two positive displacement flowmeters as master flowmeter. The master flowmeters were calibrated against with LOFSS, which has 0.04 % uncertainty of flow quantity determination, then the test flowmeter is calibrated against two master flowmeters. For uncertainty analysis, the repeatability of master flowmeters, the variation of the fluid density and the pipe volume due to temperature change were scrutinized. The contribution of each uncertainty factors to the calibrator and the correlation of each factors were discussed. For investigating the feasibility of uncertainty analysis, a turbine flowmeter as a transfer package was tested with LOFSS and two reference flowmeter. The hypothesis test for both results was coincide with a 95 % significant level. This means that the uncertainty analysis procedure of the calibrator is reasonable and the extension of flow range with master meters was carry out successfully.

• 로봇학회논문지
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• 제10권3호
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• pp.139-145
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• 2015

This paper proposed a method of cooperative control of three mobile robots for carrying an object placed on a floor together. Each robot moves to the object independently from its location to a pre-designated location for grasping the object stably. After grasping the common object, the coordination among the robots has been achieved by a master-slave mode. That is, a trajectory planning has been done for the master robot and the distances form the master robot to the two slave robots have been kept constant during the carrying operation. The localization for mobile robots has been implemented using the encoder data and inverse kinematics since the whole system does not have the slippage as much as a single mobile robot. Before the carrying operation, the lifting operations are implemented using the manipulators attached on the top of the mobile robots cooperatively. The real cooperative lifting and carrying operations are implanted to show the feasibility of the master-slave mode control based on the kinematics using the mobile manipulators developed for this research.

• 정보관리학회지
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• 제27권1호
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• pp.289-319
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• 2010

본 논문은 ALA 인증 문헌정보학교를 분석하는 것이 연구의 목적이다. 현재 ALA 인증위원회로부터 인증받은 석사과정 문헌정보학교는 57개교이다. 57개교가 기본 데이터이며, 이 정보원을 이용하여 다각적으로 분석하였다. 즉, 개교 연대, 개교시 학문명칭, 어떤 시기에 학과가 가장 많이 개설되었는지, 학문의 개정명칭, 어떤 학위과정의 프로그램 등이 개설되었는지를 분석하고자 하였다. 여기에서 얻은 결과를 한국의 문헌정보학의 교육의 향상성과 그 방향을 결정하는데 타산지석으로 삼고자 하였다.