• Title/Summary/Keyword: Sori

검색결과 98건 처리시간 0.028초

실내에서 광질이 도깨비고비와 가는쇠고사리의 생육에 미치는 영향 (Growing Response of Cyrtomium falcatum and Rumohra aristata Indoor as Influenced by Light Quality Treatment)

  • 방광자;주진희;권민훈
    • 한국환경복원기술학회지
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    • 제7권6호
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    • pp.49-53
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    • 2004
  • This study was aimed to promote evergreen ferns native to Korea as a material for interior landscape by investigate effects of light quality on the growth of Cyrtomium falcatum and Rumohra aristata, in an indoor environment that artificial light was used, especially. Result of experiments are as follows; 1. Wavelengths were measured as control(=570~580nm), red(=600~610nm), yellow(=550~580nm), green(=500~510nm) and blue(=430~440nm) between different color film. The order of photon flux density was red>yellow>control>green>blue decreased. 2. Although there was no difference in the growth of Cyrtomium falcatum depending on light quality, in case of fronds with sori and new fronds, there were highest under red film. Fresh weight was no significant in all treatments, but dry weight was increased with green>control>yellow>blue>red in order. 3. In case of Rumohra aristata, there was no difference in its growth, however, number of total fronds was highest under green film. Although fresh weight was increased with yellow film, dry weight was highest under green film.

Phylogenetic Relationships of Soranthera ulvoidea (Chordariaceae, Phaeophyceae) on the Basis of Morphology and Molecular Data

  • Cho, Ga-Youn;Kim, Myung-Sook;Boo, Sung-Min
    • ALGAE
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    • 제20권2호
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    • pp.91-97
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    • 2005
  • The brown algal family Chordariaceae sensu lato is a focus of taxonomy because recent studies suggest a broad concept of the family, including genera formerly classified in the Dictyosiphonales. Using morphology, plastid rbcL and nrDNA ITS sequences, we evaluated relationships of the monotyic genus Soranthera (S. ulvoidea), which has been classified in the Punctariaceae. The species occurs in Bering Sea and Aleutian Islands, Alaska to Baja California. Thalli are globose to lobed, hollow, 3-5 cm in diameter, and covered with evenly distributed sori. However, two forms within the species are recognized: f. ulvoidea for globose forms and f. difformis for lobed forms. Plastid rbcL and nuclear ITS region sequences were newly determined in samples of S. ulvoidea from the Pacific coast of the North America. We found little variations in the ITS sequences among samples of S. ulvoidea from five different locations and in the rbcL region from two different locations. These results do not support previous classification of f. ulvoidea and f. difformis within the species. All analyses of our rbcL sequence dataset show that Soranthera was placed in the Chordariaceae s.l., but more related to Botrytella than Punctaria and Asperococcus.

Culture study on the hybrid by interspecific crossing between Porphyra pseudolinearis and P. dentata (Bangiales, Rhodophyta), two dioecious species in culture

  • Kim, Nam-Gil
    • ALGAE
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    • 제26권1호
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    • pp.79-86
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    • 2011
  • Physiological studies on the hybrid by crossing between two dioecious species, Porphyra pseudolinearis and P. dentata from Korea were conducted at constant temperatures (5, 10, 15, 20, and $25^{\circ}C$), at photon flux densities (10, 20, 40, and $80\;{\mu}mol\;m^{-2}s^{-1}$) under photoperiods (14 L : 10 D and 10 L : 14 D). In the hybrid, higher growth of conchocelis was observed at 20 and $40\;{\mu}mol\;m^{-2}s^{-1}$ under 14 L : 10 D. Conchosporangial branches were produced under $10-80\;{\mu}mol\;m^{-2}s^{-1}$ at only $25^{\circ}C$, and were abundant when the conchocelis was cultured under 10 L : 14 D. Foliose thalli of the hybrid grew well at the conditions of $10-20^{\circ}C$, 10 L : 14 D and $15-20^{\circ}C$, 14 L : 10 D. The foliose thalli grew very slowly at $5^{\circ}C$ and $30^{\circ}C$, respectively. No archeospores were observed at any culture conditions. Spermatangial and zygotosporangial sori were formed at the marginal portion of mature thallus. Zygotospores from the hybrid were released at $10-2^{\circ}C$ under both photoperiods, and gave rise to form conchocelis filament. Monoecious thalli were observed at $10^{\circ}C$ under 14 L : 10 D. Neither monospores nor protothalli were produced from the conchocelis in culture.

제주해협 동쪽 입구에 출현하는 설상의 난수 (Tongue-like Warm Water Appeared in the East Entrance of the Jeju Strait)

  • 노홍길;평야민행
    • 한국수산과학회지
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    • 제16권4호
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    • pp.299-304
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    • 1983
  • 제주해협 동쪽 입구에는 주년 대마난류 수괴인 설상 난수가 존재한다. 그러므로 이 설상 난수 때문에 동 해협 서쪽에서 유입하는 해수의 유향이 이 해협내에서 변화되 한국 남해 연안쪽을 향할 수 있어 제주해협내의 중, 저층수는 한국 남해 연안수 형성에 중요한 영향을 미칠 수 있다. 이 설상 난수는 동계에 강하고 하계에 약하므로 대마난류는 하계 보다 동계에 한국 남해 연안에 접근하며, 이 난류의 북쪽 경계도 거문도와 소리도 연안까지 자주 접근하고 있다.

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여수 인근해역의 통항분리대 도입에 관한 연구 (A Study on Establishment of Traffic Separation Scheme for Adjacent Sea Areas on Yosu Port)

  • 박성현;정대득;정재용;김철승;안영섭
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2005년도 춘계학술대회 논문집
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    • pp.223-227
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    • 2005
  • 여수해만 특정해역 밖의 인근해역은 섬들이 매우 많고 수심이 낮은 해역으로서 한반도의 동 ${\cdot}$ 서해안을 운항하는 선박들이 섬 사이의 협소한 해역을 통항하고 있어 잦은 교행이 이루어지고 있으며, 이들 선박은 소리도 남단과 욕지도 부근 해역에서 원유 운반선, 광석운반선 및 컨테이너선과 같은 대형선과 만나면서 교통 혼잡도를 가중시키고 있다. 따라서 본 연구에서는 교통의 흐름을 단순화하고, 교차 및 집중 상황을 완화시키기 위한 통항분리대의 도입 및 추천항로의 설정한다.

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잇바디돌김(Porphyra dentata Kjellman)과 긴잎돌김(Porphyra pseudolinearis Ueda)의 종간 교잡종의 생리특성 (Physiological Study on the Hybrid by Interspecific Crossing between Porphyra pseudolinearis and P. dentata (Bangiales, Rhodophyta), Two Dioecious Species in Culture)

  • 김남길
    • 한국양식학회지
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    • 제13권4호
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    • pp.353-357
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    • 2000
  • Porphyra pseudolinearis and P. dentata from Korea were crossed and the hybrid was cultured at different temperatures (5, 10, 15, 20 or $25^{\circ}C$), photon flux densities (10, 20, 40 or 80${\mu}$mol m$^{-2}$s$^{-1}$) under photoperiods (14L:10D and 10L:14D). In the hybrids, the conchocelis grew faster at 2$0^{\circ}C$ and 40$\mu$mol m$^{-2}$ s$^{-1}$ at $25^{\circ}C$ only, and were abundant, when cultured under 10L:14D. Foliose thalli of the hybrid grew rapidly at conditions of 10-2$0^{\circ}C$, 10L:14D and 15-2$0^{\circ}C$, 14L:10D but slowly at 5 and 2$0^{\circ}C$. No archeospores were observed any tested culture condition. Spermatangial and zygotosporangial sori were formed at the marginal portion o mature thallus. Zygotospores from the hybrid were released at 10-2$0^{\circ}C$ under both photoperiods, and gave rise to form conchocelis filament. Monoecious thalli were observed at 1$0^{\circ}C$ under 14L:10D. Neither monospores nor protothalli were produced from the conchocelis in culture.

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한지사 직물을 이용한 유니폼 디자인 개발에 관한 연구 - 음악홀 유니폼을 중심으로 - (A Study on the Development of Uniform Design by Using the Hanji Thread Fabric - Focusing on the Music Hall Uniform -)

  • 범서희;이현옥;손영미
    • 한국의류산업학회지
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    • 제12권2호
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    • pp.149-155
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    • 2010
  • The advanced and complicated modern society recognizes image creation based on the identity of the global competitive age as the important means. The requirement for a new vision to the globally environmental problem has affected on design so that as environmentally-friendly products and technologies have been developed and original expression modes have been appeared which the medium of paper which is natural material, paper has been highlighted newly. Hanji made of mulberry fiber, a bast fiber of mulberry is a representative environment-friendly natural fiber. In addition, it has various functions similar to those of yellow earth such as emission of far infrared rays, antibiosis, deodorization, fast dry ability of sweat, and simple dyeing ability. It is Hanji threads that are produced from various processes of Hanji materials. Therefore, hanji threads are able to be both woven and knitted still remaining Hanji's excellent characteristics. In addition, it is light, bio-degradable, durable and washable, and it is an environment friendly product with the distinguished texture and sensitivity. Under the concept of 'Circle' designed the uniforms of music hall to inform that the uniforms as a media representing music hall represents the unique Sori Arts Center of Jeollabuk-do traditional style.

New Records of Marine Algae from KoreaⅠ

  • Oak, Jung-Hyun ;Keum, Yeon-Shim;Hwang, Mi-Sook;Oh, Yoon-Sik
    • ALGAE
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    • 제17권3호
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    • pp.145-151
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    • 2002
  • Three species of marine algae, two browns and one red were newly reported from the eastern and the southern coast of Korea including Cheju Island. their vegetative and reproductive structures were described. Colpomenia phaeodactyla Wynne et J.N. Norris (Scytosiphonaceae, Phaeophyceae) commonly occured in middle to lower intertidal zone of southern coast. Plants consisted of clusters of elongated and hollow sacs arising from an adherent colpomenioid base. Plurilocular sporangia were multiseriate, forming dense, extensive sori over the erect sacs. Cutleria adspersa (Mertens ex Roth) De Notaris (Cutleriaceae, Phaeophyceae) was collected from subtidal region of Cheju Island. It was characterized by broadly fan-shaped habits with golden brown colour and hair-fringed margines, attached by rhizoids along undersurface. Halarachnion latissimum Okamura (Furcellariaceae, Rhodophyceae) was found adrift from several areas of southern coast. Plants were brownish red, filmy and dlicate, membranaceous roundish fronds. Cystocarps were globular and formed under the cortical layer. Tetrasporangia were oblong and zonately divided.

울릉도산 갈조식물 고리매과에 대한 분류학적 검토 (Taxonomic Account on the Scytosiphonaceae (Phaeophyta) from Ullungdo Island, Korea)

  • 이욱재
    • Journal of Plant Biology
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    • 제35권2호
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    • pp.125-134
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    • 1992
  • 울릉도 갈조식물 고리매과(Scytosiphonaceae)의 5종에 대한 분류학적 검토를 수행하였다. Colpomenia peregrina (불레기말사촌)은 한국 미기록 식물이며 외부 형태에서는 C. sinuosa와 매우 유사하지만 전자는 복자낭을 싸고 있는 cuticle을 갖지 않는다는 점에서 후자와 구분되었다. Endarachne bingahmiae(미역쇠)는 북미산 식물들과 그 분류형질에서 잘 일치하지만 체장과 체폭이 계절에 따라 차이를 보였다. Hydroclathrus clathratus(그물바구니)는 1-2개의 색소가 침적된 피층세포와 크고 불규칙하게 배열된 내피층세포를 갖는 특징을 보였다. Petalonia fascia(개미역쇠)는 1-2개의 피층세포를 가지면 2-4개의 크고 불규칙한 내피층세포를 갖는 특징을 보였다. Scytosiphonia lomentaria(고리매)는 계절에 따라 체형에서 다양성을 보이며 특히 체장, 체폭에서 차이를 보였다.

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AMV: 클로킹 영역을 최소화하는 k-익명화 기법 (AMV: A k-anonymization technique minimizing the cloaking region)

  • 송두희;허민재;심종원;황소리;송문배;박광진
    • 인터넷정보학회논문지
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    • 제15권6호
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    • pp.9-14
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    • 2014
  • 본 논문에서, 우리는 이동 벡터(motion vector)를 이용하여 이동 중인 클라이언트의 k-익명화를 지원하는 AMV 기법을 제안한다. AMV는 이동 벡터 정보를 이용하여 사용자(클라이언트)들의 최소 클로킹 영역을 만들 수 있다. 클로킹 영역을 줄이는 주된 이유는 서버가 공간 질의를 요청한 모든 사용자에게 다수의 객체 정보(질의 결과)를 전송해야 하기 때문이다. 실험 결과를 통하여 기존 기법 보다 AMV 기법의 성능이 우수함을 증명하였다.