• Title/Summary/Keyword: Wood identification

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An Analysis of Plant Relationships used in Gertrude Jekyll's Wild Gardens (거투르드 지킬(Gertrude Jekyll)의 와일드 가든(Wild Garden)에서 사용된 식물 관계 분석)

  • Park, Eun-Yeong
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.4
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    • pp.73-80
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    • 2019
  • This is an empirical study to investigate the types of plants used in Gertrude Jekyll's wild gardens, identify relationships between plants, and analyze the planting patterns. Four sites were chosen for the study: the Cotswold Cottage, the Dryton Wood, the Little Aston, and the Frant Court. To find direct relationships between plants from the planting patterns shown in these gardens, the social network analysis program R was used to analyze degree centrality, which resulted in the identification of top three plants, followed by looking into their characteristics and meanings. The summary of the results is: Azaleas(Rhododendron spp.) showed the highest degree centrality, followed by wild roses (Rosa spp.). Cold-resistant crossbreed azaleas were used as underplanting connected to many different plants, creating the feeling of an atypical woodland garden. As an indigene, wild roses showed high degree centrality in terms of ecology and aesthetics, forming multiple layer planting. Also, plants with small white flowers, for example rowans(Sorbus commixta), shadbush(Amelanchier asiatica), sealwort(Polygonatum odoratum), and American columbines(Aquilegia vulgaris) were planted in these wild gardens as plant colonies to make natural connections with other plants through drifts.

Species of Korean Furniture in the Late Choseon Dynasty (I)

  • Song, Ji-Ae;Park, Won-Kyu
    • Journal of the Korea Furniture Society
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    • v.21 no.6
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    • pp.486-498
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    • 2010
  • The purpose of this study was to analyze the species of 82 furniture in the late Choseon Dynasty (mainly, 19th century), which are housed in the Seoul Museum of History. Total of 22 species were found. The species shared 43% as hard pine(Diploxylon), 9% as Zelkova serrata Makino, 7% as Paulownia spp., 7% as Tilia spp., 6% as soft pine(Haploxylon), 5% as Ginkgo biloba Linn., 4% as Cedrela sinensis A. Juss., 3% as Diospyros spp., 3% as Abies spp., 2% as Alnus spp., 2% as Picea spp., 1% as bamboo, 1% as Populus spp., 1% as Betula spp., 1% as Juglans spp. The other minor ones were Torreya nucifera Sieb. et Zucc., Pyrus spp., Castanea spp., Ulmus spp. and Kalopanax oictuse (Thunb.) Nakai. Thirty seven furniture (45% in total) was made of single species, 19 (23%) of two species, 16 (20%) of three species and 10(12%) of 4 to 6 species. For frames and panels, hard and strong woods, such as hard pines, Zelkova and Cedrela, were used. For drawer, however, light woods having low shrinkage, such as Paulownia and Tilia, were used. The origin of woods could be specified by the habitats of the species identified. Both Hwanghaedo- and Parkcheon- Chests used basswood (Tilia), which grow in the cold regions, indicating the origin of woods as North Korea.

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Study on Material Characteristic of Daegu Modern History Museum Collection Rickshaw (대구근대역사관 소장 인력거 재질분석 연구)

  • Lee, Ui Cheon;Lee, Yeong Ju;Kim, Soo Chul
    • Journal of Conservation Science
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    • v.38 no.2
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    • pp.133-143
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    • 2022
  • In this study, we analyzed the rickshaw (Owned by the Daegu Modern History Museum) by measuring each material. The purpose of the study was to identify the materials in modern cultural assets that utilize a variety of materials in a complex way, and establish basic data for preservation and management. Using portable X-ray fluorescence analyzers (P-XRF), species identification, fiber identification, paint film analysis (microscope observation, SEM-EDS, FTIR) on metal, wood, fiber and paint was carried out. Brass, an alloy of Copper, Zinc and Iron, was measured in the metal parts. Further, wooden parts, such as Oak (Quercus acutissima), Japanese Cedar (Cryptomeria japonica), Bamboo (Bambusoideae). Torreya nucifera (Torreya spp.) were identified in the body. Fiber parts consisted mainly of cotton, but some parts were also made of leather. In terms of paint, rickshaws were applied with multiple layers, using cashew (synthetic paint used in place of lacquer). In sum, the rickshaw body part appeared to overlap with layers of fiber, metal (soild), paint, and colored (black, red) layer.

Five New Records of Soil-Derived Trichoderma in Korea: T. albolutescens, T. asperelloides, T. orientale, T. spirale, and T. tomentosum

  • Jang, Seokyoon;Jang, Yeongseon;Kim, Chul-Whan;Lee, Hanbyul;Hong, Joo-Hyun;Heo, Young Mok;Lee, Young Min;Lee, Dong Wan;Lee, Hyang Burm;Kim, Jae-Jin
    • Mycobiology
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    • v.45 no.1
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    • pp.1-8
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    • 2017
  • Despite the huge worldwide diversity of Trichoderma (Hypocreaceae, Ascomycota), only about 22 species have been reported in Korea. Thus, between 2013 and 2015, soil-derived Trichoderma spp. were isolated to reveal the diversity of Korean Trichoderma. Phylogenetic analysis of translation elongation factor 1 alpha gene was used for identification. Among the soil-derived Trichoderma, Trichoderma albolutescens, T. asperelloides, T. orientale, T. spirale, and T. tomentosum have not been previously reported in Korea. Thus, we report the five Trichoderma species as new in Korea with morphological descriptions and images.

Species identification and microscopic structure of ancient wood excavated from the remains( I ) -Species of coffin woods excavated from ancient tombs- (출토고목재의 수종과 조직구조에 관한 연구( I ) -출토목관재의 수종-)

  • PARK, S. J.;KANG, A. K.;KIM, Y. J.
    • Journal of Conservation Science
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    • v.2 no.2 s.2
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    • pp.3-14
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    • 1993
  • This study was carried out to identify the species of wooden coffins excavated from ancient kings' tombs of Nakrang and Pro-Three-Kingdoms to the beginning period of the Three Kingdoms, and the private tombs of the middle stage at the Yi dynasty. The species of wooden coffins were identified as three softwoods(Thxus cuspidata, Sciodopitys verticillata, Pinus densiflora) and six hardswoods(Quercus acutissima, Quercus serrata, Zelkova serrata, Platycarya strobilarea, Alnus japonica and Morns spp.). Thxus cuspidata, wooden coffins of Nakrang kings' tombs, is distributed through Korea. However in previous examination it was known as Cunninghania lanceolata, native species in south China. Sciodopitys verticillata used as a wooden coffin of King Muryung's tomb was native to Japan. It was a material evidence proving the cultural exchange between Paekche Kingdoms and Japan in those days. Pinus densiflora was the species of wooden coffins excavated from private tombs in Yi dynasty, which was not found out from Pro-Three-Kingdoms and Three-Kingdoms. Quercus accutissima was used for making a trough shape wooden coffins at Daho-ri ancient tombs and Quercus serrata was used a outer wooden coffin of Nakrang kings' tombs. An adamant iron mongery might be used to manufacturing a trough shape wooden coffin. This indicates that a developed iron-manufacturing technics existed in Korea at that time. Zelkova serrata was used for making wooden coffins of Imdang and Kaya ancient tombs, Chunma and Hwangnam king tombs. Platycarya strobizacea was used for making wooden coffin of Daegok-ri, Alnus japonica for Daho-ri coffins and Morus spp. for Imdang coffins.

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Identification of the Woods on a Sunken Old-ship in the Offing of Sinan County(I) -Woody relics of the hull construction- (신안심몰고선목재(新安沈没古船木材)의 수종(樹種)(I) -선체구성(船體構成) 목질유물(木質遺物)-)

  • Park, Sang Jin
    • Journal of Korean Society of Forest Science
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    • v.67 no.1
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    • pp.31-41
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    • 1984
  • This study was examined for purposes of identifing woods of the hull construction collected from a sunken old-ship by the anatomical wood features, and then from the result the geographical distribution ranges of the species were described. Most woods of the hull construction, i.e. shell plating, bulkhead, floor, bulwark, deck and kneel were identified with Chinese red pine (Pinus massoniana), but the fenders were idendified with Chinese fir (Cunninghamia lanceolata). These two species are known to be the endemic species in the south region of Yangtze River. As the other materials, bulwark stays and liquid tank stays were respectively identified with Cinnamomum spp., Distylium spp., and the geographical distributions of these species are the south China, the south coast of Korea and the Japanese Islands.

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Development of the wooden window design implementing D.I.Y. modular system (D.I.Y. Modular 방식을 도입한 목재 창 디자인 개발)

  • Kim, Jin-Young;Kim, Do-Yeon;Roh, Yang-Mi;Park, Hyo-Mi
    • Archives of design research
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    • v.17 no.4
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    • pp.401-404
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    • 2004
  • The proposal defines a Do It Yourself system that radically changes the traditional concept of window. it is based on a D.I.Y. system that allows the users to fully customize its windows according to his needs, combining a wood frame with different elements. At the same time, it is preserving the basic function of light and ventilation and defining a new aesthetic code. Despite the restriction of size and shape, the user can choose among many different elements to increase the space efficiency he needs and to give a more enjoyable perspective to the window both in and out door. Also, All the elements are standard and they can be mass-produced according to specific market needs. Therefore, the window of the future will not be just a thin membrane in between the inside and the outside, but it will also play an important "identification role. According to each individual pick, these new windows will help to give identify to anonymous metropolitan areas and to the people living within them.

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Studies on Enzymes of the Higher Fungi of Korea( II ) - Identification of Cellulolytic Enzyme in Lenzites betulina- (한국산(韓國産) 고등(高等) 균류(菌類)의 효소(酵素)에 관한 연구(硏究)( II ) - 목재부후균(木材腐朽菌)인 조개껍질버섯의 섬유소 분해효소의 확인 -)

  • Park, Wan-Hee;Kim, Tae-Hee;Ro, Ihl-Hyeob
    • The Korean Journal of Mycology
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    • v.14 no.3
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    • pp.225-229
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    • 1986
  • Cellulosic substance which plays an important role in carbon cycle is most abundant in the nature world. Some higher fungi are able to digest cellulose directly to satisfy their carbohydrate requirement. Then, in order to investigate the enzymatic components of Lenzites betulina (Fr.) being wood rot, that fungus was collected in Kwangneung area. The carpophore of the fungus was smashed with cool distilled water, extracted and salted out by ammonium sulfate. And then the precipitate was purified by dialysing with visking tube and dissolved with pH 7.8 ammonia water, and the extract was filtrated. The fraction of filtrate was obtained as light brown powder after lyophilization, and determined cellulolytic activity. Cellulolytic potency of Lenzites betulina (Fr.) was 1. 65 unit/ml. The cellulase of Lenzites betulina (Fr.) was stable at below $45^{\circ}C$ and range of pH $4.5{\sim}6.0$ and is completely inactivated at $60^{\circ}C$ for 15 minutes. The optimum condition for the enzymatic reaction was $40^{\circ}C$ and pH 4.0. The enzyme activity was not influenced by the presence of $Ca^{2+}$ and $Fe^{2+}$.

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Effects of Alkali Metals and Chlorine on Corrosion of Super Heater Tube in Biomass Circulating Fluidized Bed Boiler (순환유동층보일러의 과열기 튜브 부식에 알칼리 금속과 염소가 미치는 영향)

  • Back, Seung-Ki;Yoo, Heung-Min;Jang, Ha-Na;Joung, Hyun-Tae;Seo, Yong-Chil
    • Applied Chemistry for Engineering
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    • v.28 no.1
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    • pp.29-34
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    • 2017
  • This study provides the identification of corrosion cause substances in super heater tube from a commercial scale circulating fluidized bed boiler. Electricity is produced by the combustion of biomass mainly wood waste. The biomass, super heater tube, super heater tube ash, and boiler ash were collected and components associated with corrosion were analyzed. A large amount of oxygen-containing material was found due to oxidation. The chlorine content was analyzed as 6.1% and 4.3% in super heater tube ash and boiler ash respectively which were approximately 20 and 14 times higher than those of designed values. Also, alkaline metal contents (K, Na, Ca) were very high in ash samples collected from super heater tube and boiler. The tendency of slagging and fouling was predicted based on X-Ray Fluorescence (XRF) results. Basicity that can lead to slagging was estimated as 3.62 and 2.72 in super heater tube and boiler ash, respectively. Slagging would occur with ash content when considering the designed value as 0.35.

New Species of Termitomyces (Lyophyllaceae, Basidiomycota) from Sabah (Northern Borneo), Malaysia

  • Seelan, Jaya Seelan Sathiya;Yee, Chong Shu;Fui, Foo She;Dawood, Mahadimenakbar;Tan, Yee Shin;Kim, Min-Ji;Park, Myung Soo;Lim, Young Woon
    • Mycobiology
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    • v.48 no.2
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    • pp.95-103
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    • 2020
  • The genus Termitomyces (Lyophyllaceae, Basidiomycota) is often associated with fungus-feeding termites (Macrotermitinae) due to their strong symbiotic relationships. The genus is widely found exclusively in certain regions of Africa and Asia. They are recognized as edible mushroom within Southeast Asia as well. But it is often misidentified based on morphology by the local communities especially in Malaysia for Chlorophyllum molybdites which is a highly poisonous mushroom. Thus, it is necessary to study the genus for Malaysia with the synergy of using both morphological and molecular identification. In this study, we aim to describe another new species as an addition to the genus Termitomyces found within Sabah, Malaysia. We generated two new sequences (nrLSU and mtSSU) for the new species and a total of 28 nrLSU and mtSSU sequences were retrieved from GenBank for the phylogenetic analysis using maximum likelihood and Bayesian inferences. We identified that the new collection from Sabah province is a new species and named as Termitomyces gilvus based on the termites found in the mound. A phylogeny tree made from the concatenated genes of LSU and mtSSU suggests that T. gilvus is closely related to T. bulborhizus from China. According to our results, the combination of molecular and morphology proved to be a robust approach to re-evaluate the taxonomic status of Termitomyces species in Malaysia. Additional surveys are needed to verify the species diversity and clarify their geographic distribution.