• Title/Summary/Keyword: science garden

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Experimental Verification of Relaxation Effect of Tree Planting using Eye Movement Tracking

  • Lee, Ju-Young;Sawada, Takuji;Fujii, Eijiro
    • Proceedings of the Korean Institute of Landscape Architecture Conference
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    • 2007.10b
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    • pp.89-93
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    • 2007
  • In the Japanese garden, a unique planting design has been used to improve visual harmony with the surrounding landscape by planting plants around the objects that are not harmonious with surrounding landscape. In this study, physiopsychological effects of plants caused by a traditional planting skill used in Japanese garden was verified in terms of visual relaxation using eye movement recording and semantic differential method. A total of fourteen Japanese volunteers(seven male and seven female) who have normal vision(aged $21{\sim}28$) participated as subjects. Experiment was carried out in the sealed room of Chiba University in Japan. Four different types of scenery models were presented which were created by combination of the three landscape factors of the surrounding background, the object that disturbs visual harmony, and the trees planted for improving visual harmony with the surrounding landscape. In the results, significantly more gaze fixations were measured on the trees than on the object and higher values in positive feelings were recorded for the stimuli with proper planting combination. Our results indicated that proper tree planting can cause physiopsychological relaxation by improving visual harmony with the surrounding landscape and provided new evidence for supporting scientific validity of the traditional planting skills.

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Fine Structural Analysis of the Cocoon Silk Production in the Garden Spider, Argiope aurantia

  • Moon, Myung-Jin
    • Animal cells and systems
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    • v.7 no.1
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    • pp.35-41
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    • 2003
  • The principal fibers used in constructing the cocoon in the garden spider, Argiope aurantia, are large-diameter fibers developed from tubuliform glands and small-diameter fibers presumed to be spun by the aciniform silk glands. Scanning electron micrographs of the large-diameter fibers on both surfaces of the cocoon clearly reveal their fine structural differences. While the silk fibers on the inner surface have smooth and homogeneous appearances, each fiber on the outer surface represents a multicomponent internal structure. Examination of each fibers using transmission electron microscope also provides additional evidence that the multicomponent fibers contain numerous electron lucent fibrils embedded in an amorphous electron dense matrix. It has been also revealed that two types of secretory granules presumed to be the precursors of tubuliform fibers are closely related to the production of distinct coloration in luminal contents - brownish and yellowish components. Moreover, these electron-dense granules, possibly precursor of fibrillar component, and electron-lucent granules, possibly precursor of matrix component, are densely packed and remain close to each other without fusion. It is critical evidence that the individual tubuliform fiber is not only heterogeneous and multicomponent but also takes place in a variety at manners throughout the length of the gland.

Forestry Education Support by a Forest Research Institute: Development of Forestry Educational Programs for Vocational High Schools

  • Inoue, Mariko;Oishi, Yasuhiko;Fujii, Tomoyuki;Kobayashi, Hiroyuki
    • Journal of Forest and Environmental Science
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    • v.24 no.3
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    • pp.175-179
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    • 2008
  • Forestry education in vocational high schools is one of the fundamental keys for achieving sustainable forest management. However, support systems for forestry education have not been well developed in Japan. Forest research institutes, which have accumulated relevant information, should have sufficient ability to develop new educational programs in this field. This study examined the possibility of support systems for forestry technical education by a research institute. Educational programs for vocational high schools were developed, and the programs were examined for their practical applications through a workshop for these teachers. We set the following five requirements for the programs: They should 1) incorporate new contents related to sustainable forest management, 2) be based on forestry education textbooks, 3) meet recent demands of the schools and society, 4) allow participants to learn through actual practice and experience, and 5) utilize readily available teaching materials. With these criteria, we developed the following two educational programs: (a) Forest management program to teach advanced techniques, (b) A timber-program to teach about biomass resources. The workshop was held on July $28^{th}$, 2007 with ten teachers attending. The programs were very interesting, who gave them high average evaluation of 4.6 on a scale of 1 to 5. Only a few issues need to be resolved before classroom instruction can begin, such as making wood structure easier to understanding for some teachers, and obtaining base maps of school forests. In conclusion, forest research institutes can effectively support forestry education by providing and implementing programs based on scientific information.

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Breeding of Garden Chrysanthemum Cultivar 'Nuri Ball' (Dendranthema grandiflorum Ramat.) with White Color Petals and Semi-Decorative Type Characteristics (흰색 반겹꽃의 화단국화 '누리볼' 육성)

  • Kim, Dong Chan;Choi, Hyun Gu;Pak, Ha Seung;Lee, Young Hye;Won, Mikyung;Jung, Yun Kyung;Lee, Jung-Soo
    • Horticultural Science & Technology
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    • v.33 no.5
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    • pp.789-795
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    • 2015
  • The new garden chrysanthemum (Dendranthema grandiflorum Ramat.) cultivar 'Nuri Ball' was developed at Yesan Chrysanthemum Experiment Station of Chungcheongnam-do Agricultural Research and Extension Services in 2011. 'Nuri Ball' was bred through a cross between the '02-145-01' line as the female parent with yellow flower color and '02-04-32' as the male plant with white flower color in 2004. Three years of adaptation trials were conducted from 2006 to 2009 under natural conditions. This study compared the external shape type with that of 'White Miri' and conducted ploidy and RAPD (Random amplified polymorphic DNA) marker analyses. These tests showed that 'Nuri Ball' cultivar has its own characteristics compared with the control 'White Miri'. 'Nuri Ball' was a shrub type variety with semi-double flowers of 4.0 cm in width with white petals. It could produce 1025.2 flowers per plant in autumn. Compared with the control 'White Miri', 'Nuri Ball' was similar in terms of shape and color of flowers, but was different in flower size and number. The natural flowering time of 'Nuri Ball' was late September. It had very vigorous growth and an early budding plant. 'Nuri Ball' was demonstrated to be a new cultivar based on ploidy test and RAPD analysis. 'Nuri Ball' is intended for use as a bed chrysanthemum and expected to contribute to farm incomes in landscaping.

Rootzone Profile, Trickle Irrigation System and Turfgrass Species for Roof Turf Garden (옥상녹화에 적합한 지반, 점적 관수 및 잔디 선정)

  • 이재필;한인송;주영규;윤원종;정종일;장진혁;김두환
    • Asian Journal of Turfgrass Science
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    • v.17 no.4
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    • pp.155-163
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    • 2003
  • This study was conducted to find out suitable rootzone profile, irrigation system, and turfgrass species for roof turf garden. Treatments of profile with soil amendment were Mixture I: Perlite(PL)60%+Vermiculite(VC)20%+Peatmoss(PM)20%, Mixture II: PL60%+VC 10%+PM20%+Sand(SD)10%, Mixture III: PL60%+VC20%+PM20% and Mixture IV: PL60%+VC10%+PM20%+SD10%+Styrofoam 5cm as a drain layer. To test trickle irrigation for roof garden, intervals of main pipe spacing(50cm, 100cm) and drop hole distance(15, 20, 30, 50 and 100cm)were treated, To select most suitable turfgrass species or mixture, Bermudagrass 'Konwoo', Zoysiagrass 'Konhee' and cool-season grass(Kentucky Bluegrass 80% + Perennial Ryegrass 20%, Tall Fescue 30% + KB50% + PR 20%)were tested. In particle size analysis, the soil amendments Perlite and vermiculite showed very even distribution, however, peatmoss contained mostly coarse particles with fiber over $\Phi$ 4.75mm. Under field moisture condition, vermiculite and peatmoss showed 350% water holding capacity, on the other hand, sand or Perlite showed 115% and 166%, respectively. Total weight of soil profile was 139.2kg/$m^2$ with Styrofoam drain layer without sand, which showed most lightest among treatments. Turf quality also resulted positve with Styrofoam drain layer installation. On trickle irrigation system, the proper interval of main drain pipe spacing and drop hole distance were 50cm and 50cm, respectively, In irrigation frequency, once per a day for 15 minute irrigation with 2 1/hr showed the best results on turf quality. Among turfgrass species or cool season grass mixture, warm season turfgrass fine leaf type zoysiagrass 'Konhee' and Bermudagrass 'Konwoo' showed very acceptable result on all over the treatments of rootzone and irrigation system. To apply cool season grasses for the roof garden, advanced researches may be needed to establish the proper soil amendment, rootzone profile, and irrigation system, Application of Bermudagrass 'Konwoo' for roof turf garden also needs successive tests to overcome winter injuries.

Landscape Gardening Culture in Late Joseon Dynasty Depicted in 'Ahoi-do' Paintings (아회도(雅會圖)에 나타난 조선후기 원림문화)

  • Lim, Eui-Je;So, Hyun-Su
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.32 no.3
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    • pp.46-57
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    • 2014
  • This study contemplated the gardening culture from the pictures, which the scholars of late Joseon Dynasty, the aspects of garden landscapes and garden use behaviors are drawn as follows. 1. The yard by the detached house for men and guest in front of the premises(Sarang Madang) and backyard were the major places for Ahoi(social gatherings of the scholars). The mansions had interests in the management of the outer garden beyond the house wall with building structures like the pavilions on the high walls and side gates. This management and the selection of location anticipating in advance of the management are noteworthy. 2. Only house gardens had plant pots with flowers and the small flower bed(Hwa-O) at Sarang Madang occasionally had plant pots without flowers and oddly shaped stone pots and equipped pine branch eaves and traditional awnings made of plant material like a trellis. 3. The oddly shaped stones were significant landscape elements in the gardens of houses and villas. Some of them were depicted as the Taihu stone and this draws attention to the question of whether the Taihu stone was actually used in the garden of late Joseon Dynasty. 4. The gardens in villas accommodated the borrowed scenery with various materials like wooden fences, bamboo or reed fences, mud walls. They also had the artificial gardens with some odd shaped stones, old pines, bamboos, Japanese apricots, willows, paulownia trees, lotuses and plantains in the secured Madangs. 5. Gyeong Hwa Sa Jog(The scholars of the ruling class adapted to the 18th century's new historical aspect) of late Joseon Dynasty built the villas at the beautiful scenery closed to the their houses. 6. The Gardens around pavilions were located high closed to the mountain streams with nature like beautiful forests, oddly formed rocks, precipitous cliffs and viewing stones. The back side of the pavilion was enclosed by bamboo forests and the front had pines, ginkgoes and willows as shade trees. 7. The beautiful scenery which was preferred as the place for Ahoi was basically with fantastic peaks and precipitous cliffs which forms the distant view harmonized with a waterfall. Broad and flat rocks at the summit of a mountain which commands a bird's-eye view or on a mountain streamside with pine forest, willows and plum trees were chosen as the optimal places for Ahoi. 8. Pine trees were presumed to be more preferable than other species in the garden, especially an single planted old pine tree accented symbolism. 9. Portable tea braziers for boiling tea were adopted in all four types of the gardens. 10. The gardens mixed with auspicious landscape elements were the places of the arts for an unworldliness Ahoi through GeumGiSeoHwa(enjoying strings, go, writing and painting) and boiling tea.

Verminous Pneumonia in a California Sea Lion (Zalophus californianus) (California Sea Lion(Zalophus californianus)의 기생충성폐염(寄生蟲性肺炎))

  • Oh, Chang Young;Lim, Chang Hyeong
    • Korean Journal of Veterinary Research
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    • v.12 no.2
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    • pp.191-193
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    • 1972
  • Verminous pneumonia due to Parafilaraoides decorus infection is described in a California sea lion (Zaophus californianus). Multiple nodules measuring 1~7mm in diameter occurred throughout the lung. Histologically, lung worms were located in the bronchiolar lumens and alveolar spaces in which numerous inflammatory reactions were induced.

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Cultivation and Using for Garden and Potted Plant of Heloniopsis orientalis Native to Korea. (정원 및 분화용 처녀치마 기르기)

  • Song, Jeong-Seop
    • Landscaping Tree
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    • s.107
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    • pp.23-25
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    • 2008
  • 이름의 유래는 다양하다. 아래로 향한 꽃잎 모양이 처녀 미니스커트를 닮아 붙였다고 하며, 아래의 가지런한 잎들이 치마모양을 하고 있어 그런 이름을 붙였다는 사람도 있다. 일본 이름을 잘못 번역한 것이라 보고도 있다. 처녀치마는 초본류 중 얼마 안 되는 상록성 식물로써 백합과에 속하며, 고산의 능선 북사면이나 보통 산의 웬만큼 습기가 있는 골짜기에서 흔히 자생한다. 자생지에서 보면 한 겨울 꽁꽁 언 얼음골 옆에서도 녹색을 유지하며 꿋꿋이 견뎌낸다. 연중 상록인 잎 모양도 예쁘지만 봄에 피는 꽃은 매우 아름답다.

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Cultivation and Using for Garden and Ground Cover Plant of Ixeris stolonifera (기획시리즈 - 화단 및 계피용 좀씀바귀 재배 이용)

  • Song, Jeong-Seop
    • Landscaping Tree
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    • s.110
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    • pp.20-22
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    • 2009
  • 햇볕이 잘 드는 양지 잔디밭이나 풀밭에 씀바귀들이 한창 피어나는 계절이다. 꽃이 노란 씀바귀나 좀씀바귀, 약간 흰색인 선씀바귀, 종종 그 중간색을 띠는 개체도 보인다. 잔디밭에 나는 것들은 잡초로 뽑아버리기 아까울 정도로 꽃이 아름답다. 이 중 좀씀바귀는 키가 작으면서 포복지로 잘 번식하며 꽃은 물론 잎 모양도 정연하여 적당한 공간에 관상 및 지피용으로 훌륭한 식물이다.

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Effect of New Improved Technology of Silkworm Bombyx mori L. Rearing on the Egg Production Capacity

  • Greiss, H.;Tzenov, P.;Grekov, D.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.3 no.2
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    • pp.135-139
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    • 2001
  • Experiments were held in Egypt to test a new Package of practices for commercial cocoon production, including adding secondary macro and micronutrients to the mulberry garden, disease free rearing regime, low temperature rearing in young instars and natural mounting fur silkworms. This package for seed silkworm rearing lead to increase in fecundity by 67-121eggs (15.12-26.22%) and yield of standard boxes per 1 parent egg boxes by 57-58 egg boxes(48.33-51.66%) respectively in comparison th the traditional cocoon production technology.

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