• Title/Summary/Keyword: domestic species

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A Herbological Study on the Plants of Cupressaceae in Korea (한국산 측백나무과 식물에 관한 본초학적 연구)

  • Jeong, Jong-Gil
    • The Korea Journal of Herbology
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    • v.33 no.1
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    • pp.77-84
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    • 2018
  • Objective : For the purpose of developing Cupressaceae plants recorded in Korean Herbology in Korea, the literatures of the successive generations have been thoroughly investigated to prepare this article. Methods : Books and research papers about Herbology which published at Korea and other countries were examined. Results : A list was made about Cupressaceae plant which were cultivated or grew naturally in Korea, after investigated the data on domestic and foreign Cupressaceae plants. Out of those lists, serviceable plants were selected and with those available plants, their distributions were analysed and parts which can be used as medicines were divided into 3 categories such as oriental medicine name, scientific name and non-official name. Cupressaceae's properties flavor, channels they use, effects, and toxicity were also noted. Cupressaceae(grew in Korea) were divided into 4 classes with 20 species. Out of those, 2 classes with 4 species were found serviceable which indicates 20% of all. Out of all 20 species of Cupressaceae family, Juniperus genus were found 12 species, which were shown the most. Among 2 genus of Cupressaceae species, medicinal plants Juniperus genus and Thuja genus were found 2 species each. Out of all serviceable parts in Cupressaceae, Folium parts took first place as 4 species. The research also suggests that there are 1 species and 1 parts which are toxic. Conclusion : There were totaled to 4 genera and 20 species in Cupressaceae in Korea and among them medicinal plants are 2 genera, 4 species, some 20% in total.

Evaluation of Com-Ply from Domestic Logs and Urea-Formaldehyde Resin Adhesive (국산재와 요소수지접착제로 제조된 Com-Ply의 평가)

  • Oh, Yong-Sung;Kim, Jong-In
    • Journal of Korean Society of Forest Science
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    • v.96 no.1
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    • pp.54-57
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    • 2007
  • Urea-formaldehyde (UF) resin was formulated similarly to plywood resin in the laboratory. The synthesized UF resin adhesive was mixed with extender, filler and acid catalyst. The mixture contained 56.1% total solids and 43.9% water. The mixes was used to bond five Com-Ply types using Korean wood species. The Com-Ply made were tested for shear strength and wood failure according to KS F 3101 ordinary plywood as well as for bending strength per KS F 3104 particleboard. The performance test results showed good strength properties for all Com-Ply types made in this study. This result represented that the UF resin adhesive mix was adequate for bonding Com-Ply with domestic wood species.

Traumatic Myiasis Caused by an Association of Sarcophaga tibialis (Diptera: Sarcophagidae) and Lucilia sericata (Diptera: Calliphoridae) in a Domestic Cat in Italy

  • Pezzi, Marco;Whitmore, Daniel;Chicca, Milvia;Lanfredi, Margherita;Leis, Marilena
    • Parasites, Hosts and Diseases
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    • v.53 no.4
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    • pp.471-475
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    • 2015
  • We describe here a rare case of traumatic myiasis occurred in August 2014, caused by an association of 2 Diptera species, Sarcophaga tibialis Macquart (Diptera: Sarcophagidae) and Lucilia sericata (Meigen) (Diptera: Calliphoridae), in a domestic cat in northern Italy. Species identification was based on adult male morphology. The present case is the first report of S. tibialis as an agent of myiasis in Italy, and also the first ever report of myiasis caused by an association of S. tibialis and L. sericata. The cat developed an extensive traumatic myiasis in a large wound on the rump, which was treated pharmacologically and surgically. The biology, ecology, and distribution of S. tibialis and L. sericata are also discussed. A literature review is provided on cases of myiasis caused by S. tibialis, and cases of myiasis by L. sericata involving cats worldwide and humans and animals in Italy.

Analysis of domestic and foreign research trends of Tricholoma matsutake using text mining techniques

  • Choi, Ah Hyeon;Kang, Jun Won
    • Korean Journal of Agricultural Science
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    • v.48 no.3
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    • pp.505-514
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    • 2021
  • Among non-timber forest products, Tricholoma matsutake is a high value added item. Many countries, including Korea, China, and Japan, are doing research and technology development to increase artificial cultivation and productivity. However, the production of T. matsutake is on the decline due to global warming, abnormal temperatures and pine tree pest problems. Therefore, it is necessary to identify trends in domestic and foreign research on T. matsutake, respond to preemptive research and development to preserve the genetic resources of T. matsutake and increase its productivity. Based on the correlation between keywords in the high frequency keywords, it was observed that microbial clusters of T. matsutake are mainly found in Korea. The main focus in China has been the pharmacology studies on the ingredients of T. matsutake. The main focus in Japan has been on preserving the genetic diversity and species of T. matsutake. Thus, future domestic studies of T. matsutake will require pharmacological studies on the ingredients of T. matsutake and on its genetic diversity and species conservation. In addition, unlike China and Japan, genetic keywords did not appear in Korea at high frequency. Therefore, Korea will have to proceed with research using modern molecular biology techniques.

Development of a link extrapolation-based food web model adapted to Korean stream ecosystems

  • Minyoung Lee;Yongeun Kim;Kijong Cho
    • Korean Journal of Environmental Biology
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    • v.42 no.2
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    • pp.207-218
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    • 2024
  • Food webs have received global attention as next-generation biomonitoring tools; however, it remains challenging because revealing trophic links between species is costly and laborious. Although a link-extrapolation method utilizing published trophic link data can address this difficulty, it has limitations when applied to construct food webs in domestic streams due to the lack of information on endemic species in global literature. Therefore, this study aimed to develop a link extrapolation-based food web model adapted to Korean stream ecosystems. We considered taxonomic similarity of predation and dominance of generalists in aquatic ecosystems, designing taxonomically higher-level matching methods: family matching for all fish (Family), endemic fish (Family-E), endemic fish playing the role of consumers (Family-EC), and resources (Family-ER). By adding the commonly used genus matching method (Genus) to these four matching methods, a total of five matching methods were used to construct 103 domestic food webs. Predictive power of both individual links and food web indices were evaluated by comparing constructed food webs with corresponding empirical food webs. Results showed that, in both evaluations, proposed methods tended to perform better than Genus in a data-poor environment. In particular, Family-E and Family-EC were the most effective matching methods. Our model addressed domestic data scarcity problems when using a link-extrapolation method. It offers opportunities to understand stream ecosystem food webs and may provide novel insights into biomonitoring.

Properties of Major Korean Wood Species for Furniture Manufacturing (한국산 가구용 주요 수종의 재질)

  • Kim, Byung-Ro;Park, Won-Kyu;Choi, Tae-Ho
    • Journal of the Korea Furniture Society
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    • v.19 no.5
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    • pp.365-374
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    • 2008
  • Understanding of the properties of woods is important in wood utilization. Until now, traditional wooden houses(Korean-style house, Buddhist temple, royal palaces) and furniture have been made of domestic woods with the experience of a craftsman rather than the scientific knowledge on woods. Because of concrete-based houses and imported wood products and furniture, even wood craftsmen decrease in number, too. This study was carried out to collect wood samples growing in Korea and to measure wood characteristics. Anatomical, physical and mechanical properties of 37 wood species were investigated.

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Study on the Power Consumption Characteristics of Korean Domestic Species in Peripheral Milling with Image Analysis Technique

  • Lee, Hyoung Woo;Kim, Byung Nam;Kim, Kyung Yong
    • Journal of the Korean Wood Science and Technology
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    • v.33 no.5 s.133
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    • pp.38-44
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    • 2005
  • Peripheral milling is one of the most important wood machining processes in wood industry. Power consumption characteristics of twelve Korean domestic species in peripheral milling were investigated in this study. Image analysis technique was applied to extract proper data from the power consumption profiles. Average power consumption increased as cutting depth increased and specific cutting power decreased as cutting depth increased. However, no significant relationship could be found between density and power consumption and between cutting depth and surface roughness.

Plasticization of Domestic Wood Treated with Liquid Amonia(I)-Equipment and Preliminary Test (액체암모니아를 이용한 국산재의 가소화(I) -처리장치 및 기초실험)

  • 강호양
    • Journal of the Korea Furniture Society
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    • v.11 no.2
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    • pp.55-60
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    • 2000
  • Liquid ammonia treatment known as the most effective Wood plasticization method, was applied to two typical domestic species, Pinus densiflora, Castanea crenata. Small specimens of 30mm width, 300mm length and two thicknesses, 5 or 10mm, were used. For 5mm thick Specimens, Pinus densiflora was quite well plasticized iker 4 hour liquid ammonia treatment, while Castanea crenata was not plasticized even after 4 hour treatment. Specimens of 10mm thick Pinus densiflora were hardly plasticized, but those with kerfs were bent somewhat easily, With the increase of liquid ammonia treatment time the thermal conductivity of Pinus densiflora increased, while that of Castanea crenata didn't Presteaming before liquid ammonia treatment didn't improve the plasticization of both species.

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