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      • KCI등재

        The Genus Martensia Hering (Delesseriaceae, Rhodophyta) with M. albida sp. nov. and M. flammifolia sp. nov. on Jeju Island, Korea

        이용필,Lee, Yong-Pil The Korean Society of Phycology 2006 ALGAE Vol.21 No.1

        The genus Martensia (Delesseriaceae, Rhodophyta) is characterized by thalli composed of one to several blades that consist of proximal membranous sections and distal latticework. Nerves or veins are absent in the membranous sections. The life cycle of Martensia is accomplished by isomorphic alternation of generations. The gametophytes of Martensia are dioecious, and the male and female gametangial plants are morphologically similar. The type species of Martensia is M. elegans Hering. In this study, nine species were confirmed to occur in the subtidal regions of Jeju Island, Korea: M. albida sp. nov., M. australis Harvey, M. bibarii Y. Lee, M. elegans Hering, M. flammifolia sp. nov, M. fragilis Harvey, M. jejuensis Y. Lee, M. palmata Y. Lee, and M. projecta Y. Lee. Three of these, M. australis, M. fragilis, and M. elegans, are new records in the flora of Korea. The results of molecular analyses of the internal transcribed spacer (ITS) 1 region in the nrDNA showed that M. elegans is identical to M. australis, and M. fragilis coincides with M. bibarii. It may be a less effective tool for the species discrimination in Martensia.

      • 서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

        김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

        In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

      • 에어로빅댄스의 안전성과 유효성에 관한 연구

        이보선,윤필규,이필영 龍仁大學校 1998 용인대학교 논문집 Vol.15 No.-

        In order to study a program for exercise prescription that can satisfy both safety and effectiveness on the basis of exercise strength according to heart rate during aerobic dance a study was made with thirty members of mothers' aerobic classroom as an object for twelve weeks(conducted five times a week) at S sports center and following conclusions have been obtained. Firstly, as a result of having aerobic exercises for twelve weeks and measuring heart rates the values of heart rate after twelve weeks by each stage of exercise fell significantly compared with the time when they started the exercise. Secondly, the matters for investigation prior to exercise such as physical strength test on the basis of heart rate before starting exercise or the past history of a case were not being kept properly. Thirdly, when performing the exercise they were all doing exercise with the same strength at the same time without entirely considering age or weather-or physique condition. Fourthly, as standards of heart rate for each stage of warming-up exercise, main exercise and adjustment exercise were not established there was no adequate program of exercise prescription.

      • KCI등재후보

        부정과 고대영어의 문장구조

        이필환 대한언어학회 2003 언어학 Vol.11 No.1

        This is an analysis of Old English clausal structure with special reference to the sentential negation in Old English. In this paper I argue that the underlying structure of OE is not uniformly head-final, partly accepting the double base hypothesis proposed by Pintzuk(1991, 1992, 1993) and revising the view in Kemenade(1987, 1997a, 1997b) and Lee Pil-Hwan(1992, 1993, 1995, 1999). OE exhibits synchronic variation in phrase structure: at least IP may be either head-final or head-initial. It is shown that evidence for variation in the underlying position of INFL is well supported. However, the V2 is still analyzed as involving the movement of a finite verb to C(exactly, to AGRc) and the topicalization into SPEC of CP, differing from Pintzuk's hypothesis. This assumption is necessary to account for the asymmetry in V2 between root and non-root clauses. It is also argued that Old English pronominal clitics are attached to C(or AGRc), not being substituted into SPEC of FP as in Kemenade(1999, 2000).

      • KCI등재

        조동사 do의 기원에 대하여

        이필환 대한언어학회 1999 언어학 Vol.7 No.2

        Lee, Pil-Hwan. 1999. The Origins of the Dummy Auxiliary do. Linguistics 7-2, 315-334. This article-is to review the origins of do as an auxiliary verb and its regulation. Prevailing theories, like Ellegard(1963), Traugott(1972), Denison(1985, 19934), among others, link the periphrastic auxiliary do historically with Old and Middle English causative do. But there are several views on how the causative could be developed into an auxiliary with neutral or empty meaning. It is shown that the most persuasive theory is Denison's(ibid) assumption that causative do was changed to some aspectual marker signifying perfection- or completion in Middle English and then this aspectual marker was reanalyzed as a true auxiliary, on the analogy of the modals. It is also discussed that there were several factors such as dialect, register, phonology, foreign influence, besides syntax, as the circumstances of the regulation of do in early Modern English. (Howon University)

      • Furfural 어류급독성 및 조직병리에 관한 연구

        이철우,최성수,최필선,이상협,이길철,박광식 한국환경독성학회 1997 환경독성보건학회지 Vol.12 No.2

        Furfural, an organic solvent, is widely used as synthetic component material in producing chemical products. However, furfural has been reported that it shows strong toxicities to human being showing intense stimulus to skin, eyes, mucous membrane and nerve system. It is also known to cause anemia, liver cirrhosis, kidney failure and genetic toxicity in the human being working in the exposed area. LD50 of furfural for peritoneal injected mouse has been known around 20mg/kg, but the acute toxicity on aquatic organisms such as fish, daphnid or algae are not well known, compared to those on rodents. In this experiment, we studied on the fish toxicity of furfural using Japanese Meclaka (Oryzias latipes) and Common Carp (Cyprinus carpio). We also observed histological changes in the fish organs. The LC50s were 12.8 mg/L in Japanese Medaka and 21.8 mg/L in Common Carp, respectively. When Common Carps were exposed to 120 mg/L of furfural concentration for 30 minutes, blood congestion in gills and lysis of secondary lamella were shown. Though the muscle of caudal fin was not completely eroded, its epidermic cells were shown to be necrotic in various parts. Tissue atrophy and cell necrosis were also shown in the liver of Common Carps exposed to furfural. From these results, furfural seems to cause histological damages on liver, an internal organ as well as on external organs such as gills and fins eventhough the fish were exposed for a short-term.

      • 홈 네트워크에서 스케일러블 어플리케이션 서비스 방법

        이윤주(Yun-Ju Lee),임태범(Tae-Beom Lim),김경원(Kyung-Won Kim),문재원(Jae-Won Moon),이석필(Seok-Pil Lee) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2

        홈 네트워크 상에서 다양한 디지털 기기들 간에 멀티미디어 콘텐츠를 공유/연동하는데 있어, IPTV환경에서 응용프로그램을 비디오, 오디오, 그리고 이미지 파일과 같이 공유/연동할 수 있도록 하는 방법을 제안하고 사용자의 편의성을 증진시키고 시청 환경이 서로 다른 디지털 기기에 동시 적용 가능하며 다양한 시청 환경에 최적화된 사용자 인터페이스를 제공하도록 한다.

      • 사용자 상황 정보 기반 음원 추천 방법

        이윤주(Yun-Ju Lee),임태범(Tae-Beom Lim),이석필(Seok-Pil Lee) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2

        기존의 음원 추천 방법은 사용자 프로파일, 사용자 선호도, 사용자가 오디오 컨텐츠를 재생한 히스토리 목록, 전문가들의 추천 음악 등을 고려하여 각 사용자가 좋아할 만한 음악을 추천해 주는 방법을 사용해 왔다. 이 논문에서는 상황 정보를 이용한 음원 추천 방법을 바탕으로 사용자가 처한 상황을 고려하여 사용자에게 더 큰 만족을 줄 수 있는 음원 추천 방법을 제안한다.

      • KCI등재

        한국철도의 효율적인 경영과 민영화

        조한필(Han Pil Cho),이성환(Sung Hwan Lee) 한국물류학회 2012 물류학회지 Vol.22 No.5

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        우리나라는 100년 이상 건설과 운영을 함께 담당해오던 국유철도시대를 마감하고 2004년 시설과 운영을 분리하는 철도구조개혁 조치를 단행했지만 막대한 규모의 계속적인 누적 부채 발생으로 만성적인 경영적자 구조에서 벗어나지 못하고 있다. 이에 정부는 KTX 운영권의 민간 개방 등 제 2 철도구조개혁을 위한 민영화를 추진하고 있다. 그러나 이명박 정부가 현재 추진하고 있는 KTX 동일노선에 대한 경쟁체제 도입 방안은 세계적으로 사례를 찾기 어렵고 근본적인 방안으로 미흡한 것이 사실이다. 특히 정부의 민영화 방식은 장기적으로 운임상승과 철도공사의 부채해결 대책이 없고 KTX 운영권의 민간 개방에 따른 사업면허 등 법적 근거 미약 등 정치적, 법적 여러 논란을 빚고 있다. 이에 따라 현 단계에서 분명히 고려되어야 할 것은 철도 운영 경영효율화이며 민영화를 위한 사회적 합의와 기대효과에 대한 긍정적 비전을 제시하는 것이 중요한 것으로 인식했다. 본 연구는 영국, 일본 등 외국의 철도민영화 사례의 시사점을 토대로 우리나라 철도경영의 효율적인 민영화를 위한 방안을 분석, 검토했다. 이미 시설과 운영주체가 분리되어 안정적으로 역할을 수행하는 상황에서 3,381km에 불과한 영업거리 등 취약한 인프라와 현실을 감안하여 국가의 철도투자 책임을 명확히 한다는 측면에서도 지역별, 노선별 분할 민영화보다는 철도운영주체의 일괄적인 책임제민영화 방식으로 추진하는 것이 타당한 것으로 사료된다. Korean railroad has come to the end of government construction and operation management era in 2004 and the railroad system reformation measures was carried out the way of separating the infrastructure from the operation management. But operation deficit continues due to a large accumulated debt. This led the government to push ahead privatization of KTX management for ‘the Second Railroad System Reformation’ through partial privatization. However, President Lee’s government’s current proposal for shared KTX lines is unprecedented anywhere around the globe and is still immature to be implemented as the primary solution. Specifically, the government’s privatization plan does not address any issues regarding future increase in fares and Korean railroad’s debt pay-off in the long run. Also, there are many political and legal conflicts rising from lack of legal grounds such as business license for partial privatization of KTX operation management and solutions for management failure of KORAIL and debt-generating lines. It is necessary at this point to consider the ‘management efficiency’ of the railroad and it is also important to suggest positive vision about privatization to satisfy the social expectations and achieve social and political agreements. This study has analyzed and reviewed ways of effectively privatizing Korea’s railroad management based on implications from previous privatization cases in the U.K and Japan. Based on the fact that infrastructure and operation managements are naturally separated following the train-railroad separation and the fact that the infrastructure management is stable and the operation distance is only 3,381km, it seems more effective to privatize the operation management as a whole rather than executing multiple privatizations of operation management system based on the operating areas and lines.

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