• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.227-229
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• 2015

본 논문에서는 IETF 표준화 단체에서 고려되고 있는 저전력 손실 네트워크 환경으로 구성되는 로컬 Infra IoT 네트워크에서 로컬 Infra-less IoT 서비스를 제공하기 위한 네트워크 구성 방법을 제안한다. 우선, Infra IoT 네트워크를 분석하고 이 네트워크에서 Infra-less IoT 서비스 지원에 대한 문제점을 기술한다. 이후 로컬 Infra-less IoT 네트워크 모델을 정의하고 정의된 네트워크 모델에 필요한 네트워킹 요구 사항 및 네트워크 구성 방법을 제안한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.55-56
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• 2015

본 논문에서는 여러 접속 인터페이스를 가진 노드로 구성된 저전력 손실 네트워크 기반의 로컬 Infra IoT 환경에서 로컬 Infra-less IoT 서비스를 제공하기 위한 네트워크 구성 방법을 제안한다. 우선, Infra IoT 네트워크환경의 분석을 통해 문제점을 정의하고 이후 로컬 Infra-less IoT 네트워크 모델을 정의하고 정의된 네트워크 모델에 필요한 네트워크 구성 방법을 제안한다.

• Communications of the Korean Mathematical Society
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• v.37 no.1
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• pp.279-292
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• 2022

In this paper we adhere to the definition of infra-topological space as it was introduced by Al-Odhari. Namely, we speak about families of subsets which contain ∅ and the whole universe X, being at the same time closed under finite intersections (but not necessarily under arbitrary or even finite unions). This slight modification allows us to distinguish between new classes of subsets (infra-open, ps-infra-open and i-genuine). Analogous notions are discussed in the language of closures. The class of minimal infra-open sets is studied too, as well as the idea of generalized infra-spaces. Finally, we obtain characterization of infra-spaces in terms of modal logic, using some of the notions introduced above.

• 한국정보통신설비학회:학술대회논문집
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• 2006.08a
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• pp.117-121
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• 2006

가입자망 구간에서의 최종적인 목표라 할수있는 FTTH를 실현시키기 위해서 다양한 FTTH 가입자 전송장비가 개발되고 있으며, IP-TV 서비스를 비롯한 시간이동방송과 네트웍기반의 예약녹화기능 등 IP기반의 여러가지 영상서비스 개발이 상용화 단계에 있지만 이러한 서비스를 수용하기 위해 서는 가입자 댁내까지 광케이블이 인입되어야 한다. 본 논문에서는 가입자 댁내까지 광케이블을 인입시키기 위해 건축된지 오래 경과되고 구내 통신설비환경이 열악한 기존공동주택(아파트)을 대상으로 광케이블을 댁내로 인입시키기 위한 방법과 시험 구축한 결과에 대하여 언급하였다.

• Journal of the Korean Mathematical Society
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• v.55 no.2
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• pp.293-311
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• 2018

We study the homotopical minimal periods for maps on infra-solvmanifolds of type (R) using the density of the homotopical minimal period set in the natural numbers. This extends the result of [10] from flat manifolds to infra-solvmanifolds of type (R). We give some examples of maps on infra-solvmanifolds of dimension three for which the corresponding density is positive.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.173-174
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• 2008

In this paper, we study IEEE 802.16 network for IP subnet aspects and propose optimized subnet model in accordance with IEEE 802.16 network in the point of mobility.

• The Research Journal of the Costume Culture
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• v.9 no.4
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• pp.549-561
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• 2001

Modern fashion can be expressed as 'pursuit of cocktail effect', which means not unformed, not bounded by a rule, and mixed with various styles. Among them, the most outstanding trend of style is the'infra-syndrome'which designs underclothes like a ordinary wear, which has outstood since early 1980s. In 1990s, this syndrome made active progress and now facing 21th century, it becomes one of the big trends in fashion. Clothes of infra syndrome are one of attempts for freedom expressed by progressive designers who pursuit new and surrealistic design. The purpose of this study is to maximize the aesthetic beauty of'infra-syndrome'apparel centering on dresses of which designs are notable derived from underclothes. With the sewing techniques using the special facilities of the lingerie-manufacturing industry and making use of new material which can be used far lingerie wear, this research strives to expand new ideas in the lingerie industry as well as to contribute to promoting the dress culture by developing novel lines from a new form of dress and lingerie-foundations of dress suitable for human body.

• Journal of Oriental Medical Thermology
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• v.2 no.1
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• pp.63-66
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• 2003

Background and Purpose : Ceramic based infra-red Therapy has been effective on derma system. The purpose of this case was to know the effect of ceramic based infra-red therap therapy on atopic dematitis. Material and Methods Among initial 25 outpatients with atopic detmatitis who visited Kangnam KyungHee Oriental hospital from Mar. 2000 to Sep. 2002, we excluded 4 outpatients that quited treatment after 1st treatment. We treated ceramic based infra-red therapy, herb medication treatment and Acupuncture women patients. Ceramic based infra-red therapy using GI-2000 system was lighted to under for 30 minutes. SoPungSan(消風散) was one of the effective herb medication on atopic dermatitis in oriental. In acupuncture treatment. We activated Kokchi(LI11, 曲池), Choksamni(S36, 足三里) and inhibited Yanggye(LI5, 陽谿), Yanggok(SI5, 陽谷). Results and Conclusions Ceramic based infra-red therapy, herb medication treatment and acupuncture therapy showed usfull effect on atopic dermatitis.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.730-731
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• 2011

EPA(Electric Power Automation IT Infra) is a System for Protective Information Transmitter & Receiver and network service. KEPCO(Korea Electric Power Corporation) is building up a high-speed communication network to accept Smart Grid Infra expansion and various terminal communication media characteristic. Recently, MSPP(Multi Service Provisioning Platform) System is establishted to network service. But there are many considerations for optimal design of network service for the Electric Power Automation IT Infra.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1933_1934
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• 2009

This research is about the remote control of the infra-ray signal producer and the received signal memory-type control unit. Also by using the infra-ray signal from the remote control, reduction of malfunctions due to infra-ray signal from other devices are presented. Applications on various electric and electronic items to improve the convenience are also shown.