• Journal of the Korean Institute of Telematics and Electronics
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• v.22 no.5
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• pp.24-28
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• 1985

In this paper, the cyclic product codes which are capable of correcting random erros and burst errors simultaneously have been designed and constructed. First, the procedure for product of two cyclic codes is shown and thin the encoder and decoder system using the (7,4) cyclic Hamming code and the (3,1) cyclic code is implemented. The micro-computer is used for experiment and the system consists of encoder, decoder and interface circuits. The encoder of cyclic product code is implemented by interlacing encoders while the decoder is implemented by cascading decoders that interlace error trapping decoders. In conclusion, cyclic product codas are easily decodable and are capable of correcting four random errors and eight-burst errors. Better performance is obtained with low error rate.

• The Korean Journal of Mycology
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• v.38 no.1
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• pp.85-87
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• 2010

Anti-gout xanthine oxidase inhibitory activity of water extracts from various mushrooms were determined. The highest xanthine oxidase inhibitory activity was 72.9% in the water extract from fruiting body of Agaricus brazillensis and also were high in the extract from fruiting bodies of Pleurotus salmoneostramineus(60.1%), Phellinus baumii(57.7%), Agaricus bisporus(56.7%) and Hericium erinaceum(53.4%). The xanthine oxidase inhibitor was maximally extracted when Agaricus brazillensis fruiting body was treated with water at $30^{\circ}C$ for 24 h.

• Journal of the Daesoon Academy of Sciences
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• v.23
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• pp.293-344
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• 2014

본 논문은 『전경』에서는 나타나는 숫자 부호 '삼(三)'의 의미와 나아가 '삼'과 『주역』 그리고 도교 신선신앙과의 연관성을 살펴보고자 한다. 중화의 문화에는 예부터 '삼'을 숭상하는 풍속이 있고, 도교문화도 '삼'을 숭상한다. 이는 주로 『주역』, 『도덕경』 및 도교 신선신앙과 관련이 있다. 한국문화는 전체적으로 중국문화의 영향을 깊이 받았다. 대순진리회 또한 이러한 배경 하에 있다고 볼 수 있다. 대순진리회에서는 '삼' 이라는 숫자를 반복해 사용하고 있는데, 어떤 의미에서 이것은 『주역』에 나타나는 부호 상징 사유의 확장된 표현이라 할 것이다. 또한 대순진리회의 교의(敎義)와 부도(符圖)에서도 '삼을 숭배하는(尙三)' 도교 신선신앙의 특징이 나타나고 있다. 그러므로 대순진리회에서 볼 수 있는 '삼'의 의미는 도교의 영향을 받은 것일 가능성이 매우 크다. 이렇게 말하는 것에는 두 가지 이유가 있는데 그 중 하나는 앞서 말한 바와 같이 대순진리회의 상제와 종도들이 중국의 서적을 이해하고 중시했기 때문이며 대순진리회의 구천상제께서 많은 종교를 통섭하였기 때문이다. 공사(公事) 활동, 부주(符呪) 문건, 상제와 도주의 행적 사료, 신령신앙 등의 내용 곳곳에서 '삼'이라는 특별한 숫자에 대한 각별한 관심이 구체적으로 드러난다. 이러한 '삼'은 생명과 시작을 나타내며 또한 완성과 완결을 의미한다. 대순진리회 신앙의 특징을 보면 그 배후에는 아주 깊은 중국문화의 영향이 있으며, 『주역』사상의 구체적인 표현이고, 도교신선신앙의 흔적이기도 하다. 물론 대순진리회는 자신만의 독창적이 재해석으로 이러한 문화나 사상을 계승하고 발전시켰다. 그렇기 때문에 '삼'이라는 숫자의 근원을 탐구하고, '삼'이 지니고 있는 철학적 사상을 파헤쳐 그 속의 오묘함을 발견한다면 대순사상의 깊을 뜻을 이해하는데 더 큰 도움이 될 것이다.

• Journal of the Korean association of regional geographers
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• v.18 no.1
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• pp.42-54
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• 2012

Since people have set up their lives in the Jirisan(Mt. Jiri) for a long time, there are various historical remains and religious and livehood landscape left. Jirisan has been a sacred ground and the base of livelihood and culture, with both of which Jirisan provides a new concept of a mountainous cultural landscape. Jirisan has long been resided there while hallowing it as a spiritual mother mountain. Various historical remains including mountain fortresses from the period of the Three States and ancient tombs from the Gaya age are left in Jirisan. Namakje which is a religious ritual for the mountain spirit has been conducted until today. Numerous cultural heritages have been preserved in Buddhist temples. The continuously prevalent Buddhism in Korea has helped maintaining the living cultural tradition of Jirisan. In addition, Jirisan has various extraordinary features including history, religion, culture, livelihood forms its own mosaic landscape.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.6
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• pp.311-318
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• 2016

Recent vehicles are using car internal network for various purposes such as vehicle control, diagnostic functions, and ECU program upgrade. Currently CAN and FlexRay are the most representative networks. In the next-generation network, the use of CAN FD and car ethernet is actively studied. In this paper, we aimed to compare and evaluate the diagnostic function and the program of the ECU from the upgrade view on characteristics related to download time for each network when CAN, CAN FD, and FlexRay network are applied. As a result of the simulation, it was possible to determine that the CAN FD network is currently the most suitable for the next-generation network by suppressing other networks in terms of cost performance even under conditions of 500 Kbps and 2 Mbps which are practically usable speeds.

• Journal of Mushroom
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• v.7 no.4
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• pp.168-172
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• 2009

We attempted to isolate the bacterial strains from the fruiting bodies of Agaricus brazilensis and determined their effects on browning and distortions of mushrooms. No bacterial strains were isolated when the middle of browning regions of A. brazilensis were used. Total 125 bacterial strains were obtained from the surface of browning regions and classified into 17 different genera and 29 species by using MIDI methods. Most common genus were Pseudomonas (26), Yersinia (29), and Cedecea (29). High lytic activity were detected when Pseudomonas strains were tested, while relatively low lytic activity were observed with both Yersinia and Cedecea strains.Therefore, we believed the distortion of mushroom could be the result of bacterial infections. Also, the development of brownish color was detected in large number of A. brazilensis strains only by incubation at 4C, suggesting no specific correlation between bacterial strains and brownish color development. Also, it is considered that the development of brownish color can be the normal changes of A. brazilensis.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.38-38
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• 2018

최근 호두 기내 소비량은 급증하나 대부분 실생묘로 조림되어 결실까지 장기간 소요되며, 무성 번식률이 낮아 보급확대가 어렵다. 본 연구는 호두나무 관행 묘목 번식법 개선이 가능한 우량 국산묘 대량증식 기술 개발로 최적 배양조건을 구명하고자 수행하였디. 호두나무 등 목본류는 식물 조직배양 기본배지에서 산화방지제를 첨가하여 사용하는 경우, 배양체에서 생기는 페놀 화합물(Phenolic compound)의 작용을 억제하여 배양 식물체의 갈변(Browning) 또는 흑변(Blackening) 현상을 감소시키는 효과가 있다. 페놀 추출물은 배지로 빠져나와 갈변시키며 생존율을 저하시키는 원인이 되고 이를 제거하는 산화방지제는 배양 식물체의 생산효율을 높이는 효과를 나타내는 강력한 항산화제(Antioxidant) 역할을 한다. 호두나무의 액아를 배양하게 되면 조직 및 배지의 갈변화가 심하게 일어나는데, 휴면 정도가 깊을 수록 정단에서 추출되는 페놀성 물질의 함량이 증가하며, 식물 조직 내 페놀성 물질의 함량 정도와 배양의 고사율과는 상관관계가 있다. 이러한 식물 배양체에서 생기는 페놀 화합물에 의해 발생되는 배양상의 문제점을 해결하기 위하여 계대배양을 자주해 주거나 활성탄(Activated charcoal), Ascorbic Acid 등의 첨가물을 배지에 추가하는 방법이 있다. 이에 따라 호두 '신령' 품종의 액아배양의 페놀집적을 제거하기 위해 배지 내에 산화방지제 첨가물질 등을 농도별로 처리하였다. 호두나무 액아 배양 후 8주차 산화화방지제 첨가물질의 농도별 처리 효과는 생존율은 85.3%를 보였으며, 신초 형성율 76.4%, 신초수 1.9개/주, 신초장 27mm/주의 양호한 결과를 나타냈으며, 페놀 제거 및 유식물체 고사 억제 효과를 보였다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.4
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• pp.27-34
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• 2017

In recent years, major security data such as research data and confidential documents have been leaked to the outside due to the carelessness of the companies and research institutes performing IT related services such as information technology projects and research and development of financial institutions, companies and public institutions is. Leakage cases are caused by leakage of personal information due to lack of security management of information system maintenance companies, such as unauthorized leakage or storage of related materials in outsourcing service process. In this paper, we analyzed the types and management status of service business through the environmental survey of corporate informatization business and analyzed the problems in development and maintenance using external service companies. Furthermore, in this paper, we provide an information system service that focuses on the business activities based on the items considered, and at the same time, it provides the informatization service for companies that can prevent infiltration of viruses and hacking from the outside. This paper presents a methodology for enhancing security for the system construction.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.1
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• pp.283-290
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• 2016

As the development of recent science and technology, high-performance computing resources is needed to solve complex problems. To reach these requirements, it has been actively studied about grid computing that consist of a huge system which bind a heterogeneous high performance computing resources into on which are geographically dispersed. However, The current research situation which are the process to obtain the best results in the limited resources and the scheduling policy to accurately predict the total execution time of the real-time task are very poor. In this paper, in order to overcome these problems, we suggested a grid computing-based risk management system which derived from the system structure and the process for improving the efficiency of the system, grid computing-based working methodology, risk policy module which can manage efficiently the problem of the work of resources(Agent), scheduling technique and allocation method which can re-allocate the resource allocation and the resources in problem, and monitoring which can manage resources(Agent).

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.1
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• pp.273-281
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• 2016

In this paper, we consider the discussion of the breakdown phenomenon of korean language that is displayed in the language of the Internet media, as a technical improvement approach to this, and to provide an automatic translation technology of standard language. The collected through real life surveys and experience and damage case regarding language breakdown phenomena in the FGI (Focussed Group Interview), and presents the results of the analysis, based on the analysis result data, we defined the index of language destroyed (degree of Korean destruction). The limit of the national language break or automatic translation technology standard language marked with translation errors that have to be minimized, the efficiency of the automatic translation technology standard language which may be utilized as a measure to get the maximum, and presented through the Internet media texts 2,480 pieces of analysis. Automatic translation technology of the standard language and was also measured the proposed language destroyed in this paper, we implemented in the form of a REST API using the Java language, was confirmed to work on the Web browser.