• Journal of Korean Society for Geospatial Information Science
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• v.23 no.2
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• pp.17-26
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• 2015

River corridors facilitate dispersal and movement and prevent local extinction of species. As a result of stream restoration projects, which include installation of waterfront and flood control structures, the number of animals, which rely on river corridor, is decreasing. For the study, factors affecting fish assembly were extracted by a species distribution model with the fish data collected from the Seom River in Hoengseong County and City of Wonju, Ganwon Province, Korea between March to October 2013. The riparian connectivity was assessed using species richness and rarity. According to result of the field survey, there were 38 species and 7,061 individuals for fish. The analysis suggests the following. Firstly, factors affecting fish richness in species distribution model results are shown to be velocity, riffle, riparian width, and water width. The accuracy of the model proves to be suitable with the correlation coefficient of 0.83 and MAPE of 19.2%. Secondly, the low rarity area is shown to be straight streams in Jeon river near to Hongseong County and the high rarity area to be streams with large width, existing alluvial area at channel junction between Jeon river and Seom river. Thirdly, according to connectivity results, areas where weirs are installed or riparian buffer area is removed showed low connectivity. The areas where farmland near riparian and forest areas showed high connectivity. The results of this study can be utilized to improve current facilities and enhance connectivity as a restoration guide.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.1
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• pp.488-494
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• 2014

Although friction pendulum system has various advantages it is difficult to estimate the behavior because of velocity, bearing pressure, and temperature dependent characteristics of coefficient of friction. This research focuses on evaluating the conservatism of each method used and the effects of bearing pressure on the behavior of the system by conducting comprehensive examination on design and analytic procedure of friction pendulum system, as is proposed in standard, code and literature. In addition, this study provides comparative analysis on general behavior characteristics of friction pendulum system by comparing the result with that of the analysis on lead rubber bearing which possesses the same dynamic properties.

• Journal of the Korean GEO-environmental Society
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• v.1 no.1
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• pp.35-42
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• 2000

The settlement characteristics of waste landfill site must be considered in the design of sanitary landfill as well as in the course of the rehabilitation of the landfill site. Among prediction methods for settlement of landfill site, especially Gibson and Lo model and Power Creep Law have been successfully applied to the landfill site where the amount of settlement was large and the secondary settlement was obvious. Therefore, the effects of organic content on the model parameter values utilized in both Gibson Lo model and Power Creep Law were studied by using a large consolidation testing apparatus. The organic content is each 20%, 40%, 60% of total volume and consolidation load is $0.1{\sim}1.6kg/cm^2$. The main results can be summarized as follows: (1) The reference compressibility of Power Creep Law is decreased according to the increments of consolidation load: (2) The field measurement is more similar to the Power Creep Law than the Gibson and Lo model.

• Journal of the Korean GEO-environmental Society
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• v.17 no.10
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• pp.63-71
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• 2016

Soil filling or replacement are routinely applied for soil restoration of domestic asbestos waste contaminated areas. However, since these soil recovery methods could not fundamentally solve the asbestos contamination, number of research on new alternative technologies have been carried. In this study, comprehensive laboratory test results utilizing wind power apparatus are used to design wind power purification device that can be applied in practice. Preliminary tests were carried out with wollastonite or actual asbestos waste contamination soils to study purification efficiency. Asbestos content measured immediately after in-situ test on asbestos-contaminated soil satisfying for purification standard showing less than 0.25% asbestos content from all tests, hence, analyzed to ensure over 90% of clean soil recovery rate and considered to be excellent applicability of future asbestos-contaminated soil purification.

• Food Industry And Nutrition
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• v.11 no.2
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• pp.1-9
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• 2006

우리 전통술산업의 육성은 원료농산물의 소비증대와 수입주류의 대체, 전통문화의 복원 등 다양한 의미를 가지고 있다. 즉 쌀과 잡곡, 과일, 약초 등 우리 농산물로 빛은 민속주의 재현을 통해 개방여파로 인해 남아도는 우리 농산물의 소비증대와 국민들의 건강 증진, 전통문화의 계승발전에도 기여할 수 있기 때문에 산업적 활성화의 필요성이 크다. 특히 술은 지역축제나 관광, 예술 등과 결합한 고부가가치 문화상품이 될 수 있는 만큼 그린투어리즘(green tourism)이나 농촌문화관광을 풍요롭게 하는 중요한 컨텐츠가 될 수 있을 것으로 기대된다. 우리술산업의 활성화를 위한 정책과제로는 다음을 제시할 수 있다. (1) 우리술의 맛과 향, 숙취제거 등 품질을 개선하되 특히, 젊은층과 서민들의 기호에 맞으면서도 건강기능성을 가미한 다양한 제품의 개발과 포장 및 디자인의 개선이 필요하며 이를 위해 전문연구기관을 설립하거나 한국식품개발연구원을 통한 연구개 발과 교육 훈련이 선행되어야 한다. (2) 우리술의 품질관리와 차별적 유통을 위한 브랜드화가 필요한데 이는 지방자치단체와 관련업체에서 지역에서 생산되는 술에 대해 원료나 제조방법, 생산지역 등 품질기준과 표기방법을 제도화하고, 이를 소비자들에게 알리는 방법을 강구해야 한다 (3) 시음회나 품평회, 우리술페스티벌 등 다양한 이벤트행사를 통해 우리술에 대한 부정적 이미지를 개선하고 소비를 촉진하기 위해서는 적극적인 홍보와 판매촉진이 필요하다. (4) 우리 전통술의 품질향상과 가격인하를 위해 시설현대화와 기술개발, 포장 및 디자인개선, 원료구입, 홍보 및 판매촉진 등에 소요되는 자금을 지원하고 주세 차등화 등 조세감면과 경영컨설팅 등의 지원이 필요하다. (5) 현재 국회에 계류 중인 [전통술산업육성 및 지원법(안)]를 통과시켜 제도를 정비하고, 여러 부처에 흩어져 방치되고 있는 농민주 및 민속주 관련 행정체계를 정비해야 한다.

• Journal of the Korea Convergence Society
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• v.11 no.1
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• pp.151-159
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• 2020

This paper puts forward protection strategies for the environmental problems of Busan coastline, providing theoretical basis and guiding standards for the tourism development and environmental transformation of the coastline. The order of research is to deduce the factors that affect environmental problems from the theoretical coastline development characteristics. The investigation method of spatial structure combined with time axis is adopted, and historical images and image processing techniques are used to find the characteristics of morphological changes of Busan coastline. The three types of natural coastline, artificial coastline and ecological restoration coastline are analyzed through the five factors that affect the fluctuation, extensibility, greening rate, concealment and vision of space. According to the above discussion, international competition examples are introduced to find solutions. Finally, environmental protection schemes are put forward from five aspects of tourism, accidents, development, culture and transformation. In the future research, it will focus on the transformation of coastline space to provide a more humanized activity space for coastline residents.

• Journal of Aquaculture
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• v.20 no.4
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• pp.248-254
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• 2007

Representative cDNA libraries were constructed from various tissue sources of Hemibarbus mylodon, an endangered freshwater fish species in Korea, for the mining of expressed sequence tags (ESTs). Randomized and non-normalized EST analysis was performed with 7 unidirectional cDNA libraries generated from brain, intestine, kidney, liver, muscle, ovary or testis. Of 3,383 ESTs in total, the number of singleton was 2,029, and 333 contigs containing 1,354 ESTs were assembled (percent of unigene = 70.0%). Abundantly expressed gene transcripts and broad clustering of putative gene function were tissue-specific in general, and the redundancy was also variable among those libraries. Over half of H. mylodon ESTs were matched with orthologues from other teleosts among which zebrafish gene sequences were the most frequent in those matches. This initial setting of EST libraries achieved in the present study would be a fundamental basis for the banking of gene resources from this endangered fish species.

• The Journal of the Korea Contents Association
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• v.8 no.5
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• pp.29-37
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• 2008

To transmit video bit stream over low bandwidth such as wireless channel, high compression algorithm like H.264 codec is exploited. In transmitting high compressed video bit-stream over low bandwidth, packet loss causes severe degradation in image quality. In this paper, a new algorithm for recovery of missing or erroneous motion vector is proposed. Considering that the missing or erroneous motion vectors in blocks are closely correlated with those of neighboring blocks. Motion vector of neighboring blocks are clustered according to average linkage algorithm clustering and a representative value for each cluster is determined to obtain the candidate motion vector sets. As a result, simulation results show that the proposed method dramatically improves processing time compared to existing H.264/AVC. Also the proposed method is similar to existing H.264/AVC in terms of visual quality.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.790-792
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• 2017

As the demand of digital image processing devices has been rapidly increased recently, the excellent image quality is required. However, degradation can be occurred with multiple causes during transmission and processing process. Therefore, the needs to eliminate the noise are increased and the noise elimination technology became the major study area. Therefore, image restoration algorithm was suggested to apply the filter differently by edge and non-edge areas, using modified edge detection with preprocessing process so as to relieve the effect of additive white Gaussian noise(AWGN) which is added in the image, in this article. In addition, it was compared with the existing methods using peak signal to noise ratio(PSNR) as the objective determination standard of the improvement effect.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.10A
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• pp.969-979
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• 2002

This paper proposes an novel method of minimizing Interference which causes data decision error in digital wireless communications. In this method, in order to suppress ISI which is caused by the phase difference between the transmitted and received signal phases, the transmitted and received signals are always kept orthogonal by compensating the transmitted signal for detecting the phase noise and the delay of the received signal was implemented by MOS circuits. To delay the phase of the signal, additive white Gaussian noise (AWGN) environment was used. The phase and delay of the signal transmitted through AWGN channel were compensated in the modulator of the transmitter and the compensated signal was demodulated using quasi-direct conversion receiver and QPSK demodulator. ISI suppression was achieved by keeping the orthogonality between the compensated transmitted signal and the receive signal. The error probability of data decision was compared. By simulation the proposed system was proved to be effective in minimizing the ISI.