• Title/Summary/Keyword: 하늘다리

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물리의 세계 - 벗겨진 무지개의 신비

  • Kim, Je-Wan
    • The Science & Technology
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    • v.32 no.10 s.365
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    • pp.21-21
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    • 1999
  • 하늘나라를 이어주는 아름다운 다리라던 무지개의 신비도 알고보면 물방울에서 굴절 반사하는 태양빛의 파장에 따라서 붉은색부터 보라색으로 갈라지는 원리에서 비롯된 것이다. 또 우리는 가끔 쌍무지개를 보게 되는데 자세히 보면 좀더 희미한 둘째 무지개의 색깔은 첫째 무지개와는 반대로 되어 있다는 사실도 알게 된다.

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New Host Records of Ichneumonidae (Hymenoptera), with List of Ichneumon Wasps Parasitizing Ivela auripes (Butler) (Lepidoptera: Lymantriidae) from Korea (한국산 맵시벌과의 새로운 숙주 보고 및 황다리독나방에 기생하는 맵시벌 목록)

  • Choi, Jin-Kyung;Kim, Ki-Gyoung;Suh, Hong-Yul;Jeon, Mi-Jeong;Shin, Young-Min;Kim, Il-Kwon;Jeong, Jong-Chul;Kim, YoungJin;Lee, Jong-Wook
    • Korean journal of applied entomology
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    • v.54 no.2
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    • pp.127-136
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    • 2015
  • We report new host records of four ichneumonids from Korea. They were discovered from the pupae of Apatura metis Frever (Lepidoptera: Nymphalidae), Allotraeus sphaerioninus Bates (Coleoptera: Cerambycidae) and Ivela auripes (Butler) (Lepidoptera: Lymantriidae) respectively. Diagnoses, illustrations, host records of the four species, and a list of ichneumon species parasitizing of I. auripes are provided.

Gnawing and Escaping Behaviors of Monochamus alternatus (Coleoptera: Cerambycidae) in a Confined Environment: Suggesting a Bioassay Method of Netting for Adult Escape Prevention (인위적 구속환경에서 솔수염하늘소의 쏠기와 탈출행동: 성충탈출 방지용 그물망의 생물검정법 제안)

  • Ko, Gyeong hun;Kim, Dong-Soon
    • Korean journal of applied entomology
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    • v.56 no.2
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    • pp.187-193
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    • 2017
  • The Japanese pine sawyer, Monochamus alternatus Hope, is a representative vector of the pine wood nematode, Bursaphelenchus xylophilus, which causes wilting symptoms in pine trees. A control method using a net has been introduced, which is an alternative method to the fumigation for the control of dead pine trees by pine wilt disease. This study was carried out to investigate the factors that induce gnawing and escaping behaviors of M. alternatus. The behaviors were examined after M. alternatus adult was placed in a confined space at different temperatures. M. alternatus adults could escape through mesh net torn by gnawing when they were confined in a space of 30 mm or less in diameter. The success rate of escape was high at 20 to $30^{\circ}C$, and no adults escaped at $15^{\circ}C$. The enticement of M. alternatus adults by food didn't affect the success rate of escape. In the case of not being confined in a narrow space, the escaping hole could not be formed because the gnawing was not concentrated on one part. M. alternatus moved its body in a narrow space using the tarsus of middle and hind legs, and made an escape hole by concentrically gnawing the obstacle on the front side with mandible, and showed a behavior of getting out while supporting the body by supporting the front legs. The present results will be able to use as an important basic information for evaluating the performance of mesh net which confines M. alternatus adults and suggested by alternative method to fumigation technology.

The Flora of Vascular Plants around Tuman River in China (두만강 접경지역 일대의 관속식물상)

  • 안영희;김봉찬;강기호;조동광;이철호
    • Korean Journal of Environment and Ecology
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    • v.17 no.3
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    • pp.187-200
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    • 2003
  • This study was conducted by China along with the Tumen River, which cuts between of North Korea and China. As a result 92 family, 287 genera, 470 species, 57 variety 4 formas, total 531 taxa of vascular plants were identified. The surveyed area was include the region that had various vegetation such as upper swampy land, seashore dune, a river, a high mountain grassy plain, deciduous tree zone and evergreen coniferous forest zone. The specfic plants which is protected by The Natural Environmental Preseration Act appeared to 6 taxa, and rare and endangered plants conserved by Forestry Administration were found 21 taxa in these areas. Among them Lilium cernum, Jeffersonia dubia, Acanthopanax senticosus could be regarded as very important one for chinese medicine. Picea koraiensis, Larix gmelini var. principis-ruprechtii, Populus koreana, Betula fusenensis, Ulmus pumila, Ledum palustre var. diversipilosum, Rhododendron parvifolium, Vaccinium uliginosum, Astragalus membranaceus, Aquilegia flabellata var. pumila, Carex gotoi, Carex capricornis etc. are not distributed in the South Korea.

Flora of Forest Genetic Resource Reserve in Mt. Hyangnobong (Goseong-gun, Gangwon-do) (산림유전자원보호구역 향로봉(강원, 고성군)의 식물상)

  • Subin Gwak;Jaesang Chung;Young-Min Choi;Jin-Heon Song;Byun-Kyung Ryul;Kae-Sun Chang
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.42-42
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    • 2022
  • 본 연구는 한반도의 중심 생태 축인 백두대간의 최북단이자 산림유전자원보호구역인 향로봉(1296m) 및 칠절봉(1172m), 둥굴봉(1305m)의 관속식물상을 조사하여 생태적 가치를 연구하고 생물 종 다양성 보전을 위해 진행하였다. 향로봉을 중심으로 2021년 6월부터 2022년 8월까지 총 5회 현장 조사를 실시한 결과, 총 70과 181속 237종 12아종 21변종 1품종 등 총 271분류군으로 확인되었다. 산림청 지정 희귀식물은 총 7분류군으로, 멸종위기(CR) 등급은 날개하늘나리, 끈끈이장구채, 봉래꼬리풀로 3분류군, 취약(VU) 등급은 만삼, 금강초롱꽃 등 2분류군, 위기(EN) 등급은 두메닥나무, 국화방망이로 2분류군이 확인되었다. 북방계식물은 껍질용수염, 개시호, 만삼 등 80분류군으로, 전체 분류군 중 28.8%를 차지하는 것으로 확인되었다. 한국특산식물은 한라사초, 할미밀망, 토현삼 등 17분류군이 확인되었다. 외래식물은 서양민들레, 애기수영, 토끼풀 등 11분류군이 확인되어 전체 분류군 중 3.9%를 차지하는 것으로 나타났다. 확인된 식물구계학적 특정식물 중 V급은 날개하늘나리, 솜다리 등 2분류군으로 나타났으며, 그 외 IV급 15분류군, III급 25분류군, II급 38분류군, I급 14분류군이 확인되었다.

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A Study on the Value of Island Landscape as Scenic Site Resource - Focus on the Raising Fine Village(Gwanmaedo, Youngsando) - (도서 경관의 명승자원으로서의 가치연구 - 명품마을(관매도, 영산도)을 중심으로 -)

  • Lee, Young-Yi;Lee, Jin-Hee;Kim, Jun;Lee, Jae-Keun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.30 no.4
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    • pp.93-101
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    • 2012
  • Despite the fact that the importance of islands and oceans is increasingly being emphasized as they are recognized as alternative spaces for the future, some islands that have not been designated as cultural assets have lost their natural and cultural landscapes to development projects and other plans for turning islands into tourist resources, and are still in the process of being destroyed. Unlike old perceptions of islands, islands, in the minds of people living in the modern age, have become places for taking a quiet rest or enjoying and appreciating the undamaged beauty of nature itself. Keeping up with the trend of people increasingly visiting the islands these days, it is high time to prepare plans for the promotion, preservation management, and usages of islands based on researches of islands with excellent natural landscapes and through the designation of these islands as cultural properties. As the first step of studying island landscape resources as resources of cultural assets, the current study includes literature reviews and field investigations of Gwanmaedo and Yeongsando, two islands that have been selected as prestigious villages and are part of the Dadohaehaesang National Park. Based on these preliminary investigations, landscape resources showing distinctive natural landscapes and cultural sceneries were selected and analyzed in detail, thus presented for their value as resources of Scenic site and future research.

The Interpretation of a Korean Folk Tale from the Perspective of Analytical Psychology (민담 <외쪽이>의 분석심리학적 해석)

  • Ji Youn Kim
    • Sim-seong Yeon-gu
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    • v.32 no.2
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    • pp.122-168
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    • 2017
  • I tried to understand a folk tale "The half-boy" in terms of analytical psychology. In the story, a lady without children prayed to the Buddha. The white old man came and gave three fishes, but the cat ate half of it. So, she ate two and a half. She gave birth to two perfect sons. The third son had one arm, one leg, and one eye. They grew well. Brothers went to take the civil service examinations, and the half-boy followed. But two brothers did not like the half-boy coming along. So, brothers tied the half-boy to the rocks and trees, and he picked them up with force and gave them down to the yard of the house. And the half-boy followed his brothers again, and brothers tied him with kudzu and put him in front of the tiger. The half-boy won the tiger by betting with cutting kudzu. The half-boy stripped off the tiger's skin. The host coveted the tiger skin and they played with janggi. The half-boy won the game and was permitted to take host's daughter. The half-boy went with a string, a drum, a flea, and a bedbug. He teased host's people with these. The half-boy brought a virgin and lived well. "The Half-Boy" folktale is an old story spread throughout the country. There are similar stories in India and Africa. Unilateral figures are universally distributed archetypal images. In numerous cultures gods and spirits are being portrayed as unilateral figures. In the creation mythology, half-figure beings have immortality. In Indonesian and African folk tales, the half-born boy goes to heaven and merges with its half and becomes perfect. Some of one-sided spirits are harmful to humans but some of one-sided birds, chickens, and spirits are helpful to people. Sometimes half being is a cultural hero who steals grain from heaven or gets some advice how to use bamboo. There are stories that half body becomes a whole body afterwards. But in this folktale and most of the similar folktales, half-figure does not change and maintains half-figure to the end. And as a half-figure he does various great things and marries a virgin. The half-boy symbolizes a psychic experience born in the unconscious. The unconscious contents may seem strange and weird at first and the collective consciousness does not want to accept them. But the unconscious exerts greater power and brings vitality and creativity to consciousness. This folk tale seems to have compensated for the stubborn collective consciousness of our society, which was a Confucian class society. It also allows people to change their attitude toward disabled people and recognize strengths and creativity of the handicapped.