• Journal of the Korean Institute of Telematics and Electronics
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• v.25 no.8
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• pp.972-982
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• 1988

In multiprocessor systems, there are Omega network and M network among various MIN's which interconnect the processor and memory modules. Both one-path Omega network and two-path M network are composed of Log2N stages. In this paper, Augmented M network (AMN) with 2**k+1 paths and Augmented Omega network (AON) with 2**k paths are proposed. The proposed networks can be acomplished by adding K stage(s) to M network and Omega network. Using destination tag, routing algorithm for AMN and AON becomes simple and multiple faults are tolerant. By evaluating RST(request service time) performance of AMN and AON with (Log2N)+K stages, we demonstrated the fact that MMIN (AMN) with 2**k+1 paths performs better than MMIN(AON) with 2**k+1. paths.

• Molecules and Cells
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• v.27 no.2
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• pp.129-134
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• 2009

Legume plants develop root nodules to recruit nitrogen-fixing bacteria called rhizobia. This symbiotic relationship allows the host plants to grow even under nitrogen limiting environment. Since nodule development is an energetically expensive process, the number of nodules should be tightly controlled by the host plants. For this purpose, legume plants utilize a long-distance signaling known as autoregulation of nodulation (AON). AON signaling in legumes has been extensively studied over decades but the underlying molecular mechanism had been largely unclear until recently. With the advent of the model legumes, L. japonicus and M. truncatula, we have been seeing a great progress including isolation of the AON-associated receptor kinase. Here, we summarize recent studies on AON and discuss an updated view of the long-distance control of nodulation.

• Journal of the Korea Society of Computer and Information
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• v.10 no.6 s.38
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• pp.209-218
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• 2005

In this paper, we present an Active Optical Network(AON) . The AON uses the Dense Wavelength Division Multiplexing(DWDM) from optical communication access network of ring type, and will be able to provide the smoothly service in the Bandwidth on Demand by using DWDM. It supports the connection of the multiple wavelength and the Sub-Carrier from the optical gigabit ethernet switch. The Wavelength Add Drop Multiplexer(WADM) extracts a specific wavelength, and composes a node of the ring network. The specific wavelength becomes demultiplexing in the Sub-Carrier and it is distributed in the user The active connection of optical gigabit ethernet switch where the distribution of access network is started and access terminal connection equipment is possible. By the BoD from the AON it compares the buffer size which changes, and it analyzes. Also the Time delay of bit compares with the throughput of server The limit of amount of time is decided. Consequently it will be able to realize the dynamic use protocol and an efficient algorithm of the network.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.103-106
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• 2015

본 논문에서는 비상전원 기능을 가지는 가정용 3kW 스마트그리드 홈 에너지 시스템을 관리하는 에너지 모니터링 시스템 설계 및 구현을 제안한다. 제안하는 시스템은 3kW 스마트그리드 홈 에너지 시스템으로 인터넷을 통해 전력 정보를 수집하고, 수집된 전력 정보를 효율적으로 사용하기 위해서 모니터링과 스케줄러를 통한 관리하는 방법에 대한 설계 및 구현하고, 시험 및 평가를 통해서 에너지 절감을 확인할 수 있었다.

• 한국정보통신설비학회:학술대회논문집
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• 2006.08a
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• pp.223-227
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• 2006

HD(High Density) 방송의 시작됨에 따라 광대역 멀티미디어 서비스에 대한 관심이 고조되고 있다. 광대역 멀티미디어 서비스를 하기 위한 전송 매체로 광선로를 이용한 댁내 전송 방식인 FTTH(Fiber To The Home)이 주목받고 있고 특히 AON(Active Optical Network)에 비해 구축, 유지 보수비용에 장점을 가지고 있는 PON을 이용한 방식이 선호되고 있다. PON을 이용한 표준으로 현재 IEEE802.3AH Group에서 표준 완료 된 Gigabit Ethernet PON 있으나 링크 장애에 대한 안정성 고려가 빠져 있다. 이에 본 논문은 멀티미디어 서비스에서 중요시되는 링크 장애에 대한 안정성 확보를 위한 GE-PON Link Protection 방안을 제시하며 OPNET Simulation을 구현하였다.

• Journal of the Korean Institute of Telematics and Electronics S
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• v.35S no.8
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• pp.12-20
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• 1998

All-optical networks(AON) are emerging as the next generation broadband networks for wide-area and local-area networks. Many optical switch architectures are currently proposed to realize AON. Specially, optical switches using WDM have a lot of advantages in point of the optical transparency and network topology for B-ISDN services in AON. In this paper, two kinds of Knockout Optical Switching Architectures(KOSA) are proposed for high speed optical ATM networks. We use WDM technologies for them to operate in all-optical area and they are called Architecture-Ⅰ, Architecture-Ⅱ respectively. Each one represents different characteristics according to the number of components and the kind of components, which make KOSA have different performance and system complextity. In order to verify and to compare the performance, these architectures were analyzed and simulated in terms of cell loss ratio, system complexity and buffering speed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.10
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• pp.5140-5147
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• 2013

This paper presents a new idea of structural design of the optical access network for IPOW(IP over WDM) services. More efficient network can be constructed, because the IP packets are transmitted directly to the WDM without going through an intermediate layer of networks. The wavelength Routing is based on a label switching technology. The ability to transmission of high volume traffics and QoS capability of the optical label switching directly to the end user of the IPOW optical internet networks is provided. As in AON(Active Optical Network) flexible bandwidth on demand subscribers is allocated. By the Simulation of the proposed optical access networks to measure the BER(Bits Error Ratio) at the end of the nodes the network characteristics are analyzed. These results are based on the design of efficient optical network.

• Journal of the Korean Institute of Intelligent Systems
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• v.10 no.3
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• pp.218-227
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• 2000

In this paper, we present a new fuzzy information retrieval method based on thesaurus. In the proposed method th thesaurus is represented by a fuzzy linguistic matrix, where the elements in fuzzy linguistic matrix represent a qualitative linguistic values between terms. In the fuzzy linguistic matrix, there are three kinds of fuzzy relationships between terms, i.e., similar relation, hierarchical relation, and associative relation. The implicit fuzzy relationships between terms are inferred by the transitive closure of the fuzzy linguistic matrix based on fuzzy theory. And the proposed method has the capability to deal with a qualitative linguistic weights in a query and in indexing of information items to reflect qualitative measure of human based on vague and uncertain decisions rather than a quantitiative measure. Therefore the proposed method is more flexible than the ones presented in papers[1-3]. Moreover our method is more effectual of time than the ones presented in papers[1-3] because we use a fuzzy linguistic matrix and AON (Associate Ordinary Number) values in query evaluation process. As a result, the proposed method allows the users to perform fuzzy queries in a more flexible and more intelligent manner.

• Korean Journal of Plant Resources
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• v.2 no.2
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• pp.259-278
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• 1989

The plants medicinal resources of Mt. Eb-aon were investifeted 18times from JuLy, 1988 to August, 1989. In orther to analyze the vegeta-tion of Eb-am mountain area, medical wild plants structure and distr-ibution. Medical wild Plants of Eb-am mountain consisted of 100 familis, 337 species in alL. The resources of important herb drugs were, Graminea, Liliaceae, Molaceae, Polygonaceae, Ranunculaceae, Brassicaceae, Rosaceae, Drupaceae, Fabaecae, Apiaceae, Labiatae, Solanaceae, Scrophulariaceae, Rubiaceae, CampanuLaceae, ComposLtae, The herb drufs were Comparatively more than in other mountains in our country.

• Asian Oncology Nursing
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• v.12 no.2
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• pp.139-146
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• 2012

Purpose: This study was designed to identify the impact of uncertainty degree and uncertainty appraisal on cancer patients resilience. Methods: A sample of 181 patients with cancer was recruited from a hospital in Incheon. Data were collected from May 20 to August 25, 2011. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and multiple regression with the SPSS/WIN 12.0 program. Results: The resilience for cancer patients showed a significant relationship with uncertainty degree and uncertainty appraisal. The significant factors influencing resilience were uncertainty degree and uncertainty appraisal, they explained 26.5% of the variance. Conclusion: Patients with cancer were adversely affected by uncertaint which led to a negative effect on resilience. The result suggests that intervention programs to reduce the level of uncertainty among patients could improve the resilience of cancer patients.