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A New Species of Pholcus (Araneae: Phocidae) from Gosu Cave, Korea (한국 고수동굴산 유령거미과 (거미강: 거미목)의 1신종)

  • Kim, Byung-Woo;Lee, Wonchoel
    • Animal Systematics, Evolution and Diversity
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    • v.20 no.1
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    • pp.79-85
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    • 2004
  • Pholcus gosuensis sp. novo is described from the entrance zone of Gosu cave, Chungchengbuk-do, Korea. The species is characterized by male palpal organs with three expanded apophyses and developed callosity on procursus, two frontal apophyses of chelicerae and degrading appendix, and sclerotized arches on uterus externus. The species is related to P. crassus Paik 1978 and P. acutulus Paik, 1978 in having identical uncus and embolus but differentiated from those species by the combined characters of large apophyses and heavily sclerotized callosity on procursus, and structure of arches on uterus externus.

Taxonomic Studies on Cercospora and Allied Genera in Korea (I) (한국산 Cercospora 및 관련 속의 분류학적 연구 (I))

  • Kim, Jeong-Dong;Shin, Hyeon-Dong
    • The Korean Journal of Mycology
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    • v.26 no.3 s.86
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    • pp.327-341
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    • 1998
  • The mycoflora of Korea, especially the cercosporoid taxa, have been poorly studied in the past. For this reason, a systematic revision of these taxa has been initiated, with the eventual aim of producing a monograph of the Korean cercosporoid taxa. The present study circumscribes ten species; viz., Cercospora althaeina, C. arachidicola, C. armoraciae, C. carotae, C. ipomoeae, Mycovellosiella ferruginea, Passalora miurae, Pseudocercospora araliae, P. cannabina and P. vitis. Distinguishing morphological characteristics are described and illustrated for each species.

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First Record of the Entomopathogenic Fungus Zoophthora radicans on the Green Peach Aphid Myzus persicae in Korea (복숭아 혹진딧물에서 발견된 국내 미기록 곤층병원 사상균 Zoophthora radicans에 관한 보고)

  • Yoon, Cheol-Sik;Yun, Tae-Yu;Lee, Goen-Hyoung;Yoo, Jai-Ki
    • The Korean Journal of Mycology
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    • v.26 no.3 s.86
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    • pp.399-402
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    • 1998
  • An entomopathogenic fungus, Zoophthora radicans, was found causing epizootics in populations of the green peach aphid, Myzus persicae, on March 27, 1998 at Seongju Gun, Kyungbuk Province in Korea. Anamorhic characteristics of the fungus were described using light and scanning electron microscopy. Distinguishing characteristics of Z. radicans is formation of capilliconidia on a single slender secondary conidiophore.

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Entomophthora planchoniana Cornu (Zygomycetes: Entomophthoraceae), the First Observed Pathogen of the Green Peach Aphid Myzus persicae in Korea (복숭아혹진딧물에서 발견된 국내 미기록 곤충병원성 곰팡이 Entomophthora planchoniana에 관한 보고)

  • Yoon, Cheol-Sik;Sung, Gi-Ho;Lee, Gun-Hyung;Park, Hyun-Soo;Lee, Jeang-Oon
    • The Korean Journal of Mycology
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    • v.26 no.3 s.86
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    • pp.403-406
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    • 1998
  • An entomophthoraceous fungus, Entomophthora planchoniana, was found in populations of the green peach aphid, Myzus persicae, at Kunsan city on June 2, 1998. Occurrence of this species has never been recorded in Korea. Microscopic observations of this fungus are described, and illustrated. Unique characters are that it forms unitunicate muscae-like conidia with $4{\sim}6$ nuclei, and is the only Entomophthora species which can attack aphids.

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Revison of the Genus Russula collected in Korea (한국(韓國)에서 수집(蒐集)된 무당버섯 속(屬)에 대한 검토(檢討))

  • Kim, Yang-Sup;Park, Yong-Hwan;Kim, Yeung-Bae
    • The Korean Journal of Mycology
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    • v.5 no.2
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    • pp.1-9
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    • 1977
  • In this paper, three species of Russula previously not recorded in Korea were found in Suweon, Mt. Chiri, Taegwanryung, Kwangneung, and etc., during 1977. The authors classified 32 species of Russula including 3 unrecorded species into 4 subgenera acording to morphological and cytological characteristics by S. Ito's taxonomic system, and proposed to designate the 3 unrecorded species of Russula and 4 sub genera, ((Compactae, Ingratae, Rigidae, and Fragilis) in Korean common name.

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The Study about Training Method of Chongripaldangum(鍾離八段錦) in Sooginsibseo(修眞十書) (${\ll}$수진십서(修眞十書)${\gg}$ 에 기재된 종리팔단금(鍾離八段錦)의 수련방법(修練方法)에 대한 연구)

  • Lee Sang-Jae;Baek Jin-Woong;Kim Kwang-Ho
    • Journal of Society of Preventive Korean Medicine
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    • v.5 no.1
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    • pp.1-9
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    • 2001
  • Chongripaldangum(鍾離八段錦) is a traditional exercise which is known as qi-gong. It was first mentioned in Sooginsibseo(修眞十書) published in Won dynasty. But it is very difficult to know how to master Chongripaldangum(鍾離八段錦). So we studied the training methods by analizing several books such as $\ll$遵生八?$\gg$ and $\ll$內外功圖說輯要$\gg$ which have pictures of the training methods. It is known that to train Chongripaldangum(鍾離八段錦) is not only limited to the exercise of the body but also training of the mind is an important factor. It is very imprtant to know that the system of Hyung(形), Qi(氣), Sin(神) is needed for Chongripaldangum(鍾離八段錦)

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Satellite Remote Sensing and Earth Science -Satellite Oceanography- (위성원격탐사와 지구과학 - 위성해양학 -)

  • 윤홍주
    • Korean Journal of Remote Sensing
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    • v.15 no.1
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    • pp.51-60
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    • 1999
  • Today, satellite remote sensing plays an important role as a advanced science and technology, and becomes a superpower tool of the study and research in various fields of Earth Science. UN proclaimed that 1998 was the year of the oceans, and WMO chose the title of 'Weather, Ocean and Human activity' as the principal subject of the day of the world meteorology in march 23, 1998, respectively. As previously announced, these two memories give the great meaning for satellite remote sensing in oceanography. Therefore, this study reviews satellite oceanography for many specialists in the fields of the ocean and fishery science. In future, satellite oceanography will be greatly used to observe, monitor and predict various phenomena associated with the oceans, in order to seek safety in a natural disaster, and menage and conserve the oceanic environments and resource.

Kinematic Mechanism of Gait on Different Road Conditions in Older Women (보행 지면 상태에 따른 노인의 운동학적 보행 메카니즘)

  • Hah, Chong Ku;Ki, Jae Sug;Jang, Young Kwan;Lee, Eun Young
    • Journal of the Korea Safety Management & Science
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    • v.17 no.3
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    • pp.163-171
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    • 2015
  • The aim of this study was to investigate kinematic mechanism of gait different road conditions(dry vs. oil) in order women. For this study, twenty older women and ten young women participated in this research. twelve infrared cameras were used to collect data. It appeared that the gait strategies of older women were slower velocity and higher CoM than young women. Depending on road conditions, gait velocities of dominant muscle older women on dry surface were faster than dominant sense older women, but those of them were inverse on oil surface. The slip displacement of dominant muscle older women was less than young women, but the slip displacement of dominant sense older women was greater than young women. In case of blind during stance phase on oil surface, the rotational motion of the ankle and knee joints were increased. In conclusion, older women were subjected to self-organization theory and phase shift in dynamic theory.

Ixora auricularis Chun & F. C. How ex W. C. Ko (Rubiaceae): A new record to Flora of Vietnam (Ixora auricularis Chun & F. C. How ex W. C. Ko: 베트남 미기록종)

  • Thieu, Thi Huyen Trang;Tran, The Bach;Nguyen, Dinh Hai;Choi, Sangho;Eum, Sangmi
    • Korean Journal of Plant Taxonomy
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    • v.46 no.4
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    • pp.356-360
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    • 2016
  • Ixora auricularis (Rubiaceae), previously recognized as endemic to Yunnan (China), was reported in Vietnam. This plant differs from the closely related species Ixora coccinea in its auriculate shape of the base leaf, greater number of secondary veins, shorter stipules, calyx having more appendices, shorter corolla tube, and the oblanceolata shape of the corolla tip. Detailed information about its description as well as illustrations, color photographs and a species key of related species of Ixora in Vietnam are provided.

Study on the Design and the Prototype Manufacture of Cooling systems of the Propulsion System for the EMU (동력분산형 고속전철의 추진시스템용 냉각장치 설계 및 시제품 제작 연구)

  • Ryoo, Seong-Ryoul;Kim, Sung-Dae;Ki, Jae-Hyung;Yim, Kwang-Bin;Kim, Chul-Ju
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.422-429
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    • 2008
  • The objective of the present study is to develope a propultion unit cooling system for the next-generation High-speed EMU. The propulsion power control unit consists of some IGBT semiconductors. In general, those power semiconductors are very sensitive to temperatures and need a cooling system to keep them at a proper operational conditions in the range of $50{\sim}100^{\circ}C$. In this first year of study, we tried to focuss on the understanding of fundamental technologies for each of the two different cooling systems and collecting basic data for design and manufacturing for both cases. For the water cooling system, a heat sink with multi channels of liquid flow was considered and a model unit was designed and performance test was conducted. For the heat pipe cooling system, a Loop Heat Pipe(LHP) was considered as an element to transport heat from IGBT to environment air flow and a model unit was designed and performance test was conducted. The analysis using SINDA/FLUINT showed that those design parameters are good enough for the LHP to properly operate under a heat load up to around 360W.

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