• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.12C
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• pp.1224-1231
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• 2006

This paper proposes a fast encoding algorithm of H.264/AVC multi-view video coding. The amount of data to be encoded for a multi-view video is much more than normal video's data, and the amount of information to be predicted is enormous because of the multi-view video coding uses inter-disparity prediction in addition to inter-motion prediction in conventional video coding. We noticed through an experiment that the efficiency of prediction is getting better in order of intra, inter-disparity, inter-motion, and inter-skip, and proposes a early termination algorithm by means of estimate the adaptive threshold within a GOP unit. In the experiments, the proposed algorithm shows improved processing speed about 32% compared to existing method, and increased amount of bits and distortions are relatively disregardable.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.49 no.5
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• pp.226-232
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• 2000

This paper presents application results of the augmented matrix eigen-sensitivity theories to TCSC siting problem for damping the inter-area low frequency oscillation in the large KEPCO system. First and second-order eigen-sensitivities of the inter-area low frequency oscillation in the large KEPCO system. First and second-order eigen-sensitivities of the inter-area mode are computed fro changes in susceptance of the transmission lines. The lines having high sensitivity are chosen as the initial candidates for installing TCSC. Then for each of the chosen candidates, Bodeplot of the transfer function with line susceptance as the input and the bus voltage at one side of the line as the output is computed. Using the Bode plots, the lines having any zeros near the inter-area mode are screened out since design of TCSC controller is very difficult in such a case. The $H_{\infty}$ TCSC controller installed at any finally chosen candidate is found to be effective in damping the inter-area oscillation, and the proposed TCSC siting algorithm is proved to be valid. Design of $H_{\infty}$ controller is described in Part IIof this paper.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.1
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• pp.23-36
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• 2016

We propose a new type of OFDM-CDMA scheme which allows large inter-user timing offset using zero correlation zone(ZCZ) code in conjunction with block spreading technique. Moreover to maximize spectral efficiency, the proposed OFDMA does not have guard time(GT). This is opposite to the trends in the conventional schemes where GT are supposed to be larger to allow larger inter-user timing offset. It is remarkable that the proposed GT-free OFDM-CDMA scheme completely cancels inter-user interference in the multipath fading simply by despreading process. This inter-user interference-free feature still remains even there exist inter-user timing offsets as large as multiple OFDM symbols. Although the self-user interference exists due to no GT, it can be effectively suppressed by simple successive interference cancellation(SIC) from the first symbol in spread block as it is free from inter symbol interference(ISI).

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2002.11a
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• pp.183-186
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• 2002

본 논문에서는 신호의 마스킹 특성을 이용한 Inter-Band Smoothing 기법을 통한 음질 개선 연구를 하였다. 이것은 임계 대역 신호 처리 후 신호의 전체 신호 대 마스킹 비를 보상해 주는 방식으로, 각 대역의 여기(Excitation) 에너지로부터 근사화 시킨 전역 마스킹 임계치를 통한 보상 기법이다. 잡음 에너지 제어를 통한 음질 개선알고리즘을 이용한 실험 결과 보다 자연스러운 음질의 제공을 통해 MOS의 개선을 확인 할 수 있었다.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2001.06a
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• pp.3-11
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• 2001

With respect to the increasing social demands on environmental protection and technological advancement, collaboration between universities, technical societies, industrial associations and governmental agencies are become more and more important in recent years. Particularly during the last decade, interdisciplinary and inter-industrial cooperation appeared to be significant for making Japanese industries more global and effective to cope with those social requirements whereas the individual companies could not achieve comprehensive solutions. The author will review the current movements on the inter-organizational cooperation activities and future directions in Japan.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.201-202
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• 2022

In this study, the high performance silicone was developed to assure the inter-layer joint in apartment house. The tensile strength, the elongation, the bond strength and the fatigue tests were conducted. As a result, it was confirmed that the performance of high -performance silicone was superior to the existing elastic paint. Therefore, it is expected that it will help to secure the quality of inter-layer joints in apartment houses.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.11a
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• pp.93-93
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• 2004

• Journal of Korean Library and Information Science Society
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• v.34 no.4
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• pp.67-82
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• 2003

Korea is in the state of insufficient supply of research information, a gap of information between universities and absolute depends on foreign information resource. So it is necessary to activate inter-libray research information resource sharing. To encourage consciousness and spontaneous effort to inter-libray research information resource sharing, university libray evaluation system of contribution toward resource sharing is required. This study intends to survey present condition of inter-libray research information research information in Korea, and develope evaluation system about inter-libray research information resource sharing. And propose operating methods of evaluation system about insert established university evaluation system or execute independently.

• Journal of the Korean housing association
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• v.26 no.6
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• pp.1-8
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• 2015

This study aims to develop a solution to inter-floor noise complaints by exploring cases of noise complaints between floors and by identifying the demands and needs of the residents. For this purpose, a survey was conducted targeting residents who were sorted into groups depending on their experiences with inter-floor noise. This survey was carried out from June 11, 2014 to June 16, 2014. A total of 100 copies of the questionnaire was distributed to the residents, of which 98 were completed and collected. Data were statistically processed in accordance with SPSS WIN 18.0. The results showed that the leading causes of inter-floor noise complaints were residents' differences in schedules and their inconsideration in behavior. Thus, the solution to this issue is three-fold: first, to take social measures in order to improve communication and understanding between residents so they can be mindful of their noise levels; second, to reinforce noise control regulation; and third, to improve noise reduction design within the building architecture.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.16 no.1 s.92
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• pp.78-83
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• 2005

LTCC filters have been widely used to wireless terminals. They generally adopt the multilayer structure. Some of multilayer LTCC filters are made of symmetrical parallel-coupled lines and anti-symmetrical parallel-coupled lines to reduce the length of resonators. The equivalent circuit of parallel-coupled lines was analyzed and applied to bandpass filters using multilayer parallel-coupled line resonators. The three-pole bandpass filter with the center frequency of 2.45 GHz is designed by using the proposed equivalent circuit and the measured results have good agreement with the design results.