• Journal of the Institute of Electronics Engineers of Korea CI
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• v.47 no.1
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• pp.152-159
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• 2010

Existing character recognition algorithm recognize characters in simple conditional. It has the disadvantage that recognition rates often drop drastically when input document image has low quality, rotated text, various font or size text because of external noise or data loss. In this paper, proposes the optical character recognition algorithm which using bicubic interpolation method for the catalog retrieval when the input image has rotated text, blurred, various font and size. In this paper, applied optical character recognition algorithm consist of detection and recognition part. Detection part applied roberts and hausdorff distance algorithm for correct detection the catalog of book. Recognition part applied bicubic interpolation to interpolate data loss due to low quality, various font and size text. By the next time, applied rotation for the bicubic interpolation result image to slant proofreading. Experimental results show that proposal method can effectively improve recognition rate 6% and search-time 1.077s process result.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.2
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• pp.247-252
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• 2015

The majority of electric power in the domestic manned islands with off-grid power system is supplied by the diesel generators. However, in the case of off-grid islands the fuel cost is more expensive to inland areas and difficult to transport them to islands. So the development of renewable energy system using natural resource have been recently introduced. But renewable energy that depend on the natural environment, it is necessary to organized the hybrid system with existing diesel engine because the energy is difficult to maintain stable electric power. This paper presents the results of a feasibility study of hybrid system with energy storage system such as wind, solar, battery and diesel engine. The study included off-grid island as the Seogeochado islands located in Jeolanamdo Province. And, the paper proposed a optimal capacity of hybrid system configuration to maintain carbon free with minimum investment cost. the analysis of economic adaptability performed by HOMER program.

• Electronics and Telecommunications Trends
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• v.15 no.6 s.66
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• pp.190-197
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• 2000

최근 인터넷 산업이 부각되면서 분류에 대한 연구도 인터넷 분야의 다양한 응용에 적용하기 위해 새롭게 재기되고 있다. 본 고에서는 이러한 지식분류체계의 변화양상과 동향을 파악하기 위해 이론적 배경으로 가장 기본이 되는 도서관학 측면에서의 기존 분류체계의 특성을 살펴보았다. 이를 바탕으로 분류체계의 설계과정 기본원칙 및 새로운 적용분야에 대한 접근방식에 있어 분류체계에 대한 인식변화도 아울러 이루어져야 함을 살펴본다. 마지막으로 인터넷에 적용된 분류체계의 활용동향을 살펴보고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.263-264
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• 2024

최근 도서관을 찾는 이용객들이 증가하면서 도서관의 시설이 넓어지고 좋아지고 있다. 또한 책의 종류도 다양해졌다. 시설이 넓어지고 직접 책을 검색하여 찾으러 가기 힘들어지고 시간 소요도 많이 된다는 불편함이 있고 도서 대출증이 없다면 책을 빌리기 힘들고 사서에게 부탁해야 한다는 번거로움이 있다. 본 시스템은 이러한 문제를 해결하기 위해 이용객의 스마트폰에 회원 정보가 담긴 바코드를 부여하고 대여할 책을 로봇이 이용객에게 가져다주는 기능을 제공한다. 이로써 대출증 소유의 불편함과 책을 찾는 불필요한 시간을 단축할 수 있다. 또한 로봇을 이용하는 도서관이라는 타이틀로 이용객이 증가할 것으로 기대된다.

• New & Renewable Energy
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• v.16 no.2
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• pp.14-19
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• 2020

Recently, a project to build a carbon zero island with no carbon emissions has been carried out by replacing diesel generators with renewable energy sources in island areas where diesel generators supplied local loads as independent systems. To minimize damage to the lives of islanders, low noise wind generators should be installed by adjusting the rated speed. In islands with low loads, wind turbines that are more efficient than medium-sized wind turbines should be installed. In this study, the generator field analysis and characteristics were analyzed to develop 230 kW-class low wind medium-wind turbine technology. The electromagnetic field analysis program used Maxwell. As a result, the cogging torque was reduced, and the initial maneuver wind speed and loss value were lowered. Hence, the output amount was increased with high efficiency.

• The Journal of the Korea institute of electronic communication sciences
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• v.5 no.3
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• pp.288-293
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• 2010

In these information-communication society, the wireless system technologies are increasing to do all things with wireless solution for fast and convenient works. This trend drives ubiquitous solutions which are based on broadband wireless network that gives network connection whenever, everywhere. This paper deals a bookshelf management system using plower line communication and RFID module. This system includes a 900 MHz RFID reader, Passive RFID-Tags, an Atmeg128 microprocessor board attached LED Display Module, and a management PC with GUI Software. This system works well in power line communication, tag reading and LED display, and PC Management Software.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.337-339
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• 2016

In this paper, we researched the excellency of 3D graphic nursery contents for humanity and creativity education which is developed by mobile AR technology. AR technology has currentlypeople's attention because of the potential of future core contents. We allpied AR technology for kid's education of language, humanity and creativity. Well known nursery tales reconstructed by ICT technology give absorbing interest to kids, lead the curiosity of leading edge technology and friendly accept it as a part of daily life.

• Journal of Korean Library and Information Science Society
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• v.33 no.4
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• pp.85-100
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• 2002

According to increase number of electronic publications, teacher ind student demand them in their teaching md teaming activities. So school libraries must provide various materials(ex : printed, audio-visual and electronic materials). The purpose of this study is to identify the use of electronic publications in school libraries md to suggest the methods of utilization of them.

• Journal of Korean Library and Information Science Society
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• v.35 no.1
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• pp.283-301
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• 2004

This Research considered the case of scholarly journal - electronic journal in particular - which are currently in a state of change and investigates the policies of the Korea and Japan government and other related organizations. The decision to acquire electronic journals, participation in consortia and the present conditions were investigated, and the differences in policy between the two countries were considered with a view to the possibility of cooperation.

• Journal of the HCI Society of Korea
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• v.7 no.2
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• pp.57-64
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• 2012

Digital talking books have been developed to enhance reading experiences for reading-disabled people. In the existing digital talking books, however, it is difficult to read special contents such as math expressions, images, etc. In this paper, we define reading rules for Contents MathML. Based on this rules, we implemented a program for reading the mathematical contents of Contents MathML, using XSLT. We conducted a confirm test to prove the accuracy of the program, and an usability test to measure understanding of reading text of math expressions.