Embroidery is called 'Ja-Su' in Korea. The purpose of this study is to present a method that utilizes the technology of traditional Korean embroidery to get a genuine feeling of tradition. This study was conducted in the following manner: first, Previous researches and references were used survey traditional embroidery techniques. Second, by using traditional embroidery techniques, the study attempted to develop a design of embroidery household Items with modern sense and practicality. The results of this study are as follows: This study has developed and produced embroidery household items that can be used in modern life by using traditional embroidery techniques. A total of 10 kinds of miscellaneous everyday life utensils and interior pieces were produced. Materials used in the embroidery production were made out of natural fabrics, such as cotton (Kwang-Mok, Mu-Myung), linen, cotton thread were used for a practical reason for practical reasons (i.e. being easily washable). Embroidery techniques used in this study were straight stitch, outline stitch, satin stitch, separate stitch, french knot stitch, long&short stitch, brick stitch, chain stitch, couching stitch, Pad stitch, and pine-leaf stitch. In order to further develop traditional embroidery, a technique passed down from the ancestors, it needs to change to become more suitable for modern life while maintaining the tradition.
The purpose of this study was to investigate the effect of dietary dae-chu(Rhamnace ziziphus, A), onion(Allium cepa L., O), mixture extracts (mulberry leaf, licorice root, pine needle, angelica gigas, jujube, onion, M) on serum glucose, lipid, enzyme, phosphorus levels in rats (Sprague-Dawley male rats, $357.03{\pm}7.08g$). Serum calcium of onion group was significantly decreased (p<0.05), but mixture extracts group of Cl (p<0.05) and TBIL (total bilirubin, p<0.05) were significantly increased. Serum glucose, total cholesterol, HDL-cholesterol and triglyceride were increased experimental rats than those of the normal rats. Mixture extracts was better than other groups for lipid metabolism. Also, GPT(glutamic pyruvic transaminase) and GOT(glutamic oxaloacetate transaminase) of onion extracts were protected to liver. So mixture and onion extracts were good drink for health.
The purpose of this study was to evaluate the substitutional possibility of new extender instead of wheat flour, which is extending for plywood adhesives in Korea. As the extending materials corn stalk, pine bark, Pitch and Korean pine leaves, wheat, or wood flour were selected and prepared for the extending powders, dried at $103{\pm}2^{\circ}C$ during 24 hours in the drying oven, followed by being pulverized into 60-100 mesh powder. The extenders were mixed with urea formaldehyde resin in the ratio of 5, 10, 15 or 20%. After plywoods were manufactured by the above extended ratios, dry and wet shear strength and wood failures were analyzed and discussed. The results at the study may be summarized as follows ; 1. In urea formaldehyde resin dry shear strength in plywood extended by wheat flour showed the highest value. 2. Among the extenders in 10 and 20% extension of urea formaldehyde resin wet shear strength of wood flour was higher than that of wheat powder. They had no significant difference statistically. 3. Among the extenders of 5% extension of water soluble phenol formaldehyde resin dry shear strength of plywood extended by Korean pine leaf powder showed the highest value, while wheat powder showed the highest value among 10, 15 and 20% extentions. 4. In water soluble phenol formaldehyde resin the best results of wet shear strength showed in wheat powder. 5. Among the extenders in 15 and 20% extension of water soluble phenol formaldehyde resin, dry and wet shear strength in plywood of corn stalk powder were the highest value next to wheat powder.
This research was performed to estimate the influence of relative light intensity and planting density on the growth of dry weight of needles and other organs growth in Korean white pine seedlings raised in the transplanting bed. 1. As treated with various light intensities, relationships between needle dry weight and growth of other organs(dry weight of shoot, root and diameter of seedlings) had significantly positive correlations and linear regressions, but regression between needle dry weight and seedling elongation was a second degree polynomial. As treated with various planting densities, the second degree regression curve was found between needle dry weight and shoot dry weight, and seedling elongation, And linear regression between needle dry weight and root dry weight, and seedling dry weight could be estimated, while any regression between needle dry weight and diameter was not recognized. 2. As treated with various light intensities, linear regression between leaf area and shoot dry weight, and seedling dry weight, exponential regression between leaf area and seedling elongation were significantly recognized, while a tendency of logarithmic regression between leaf area and diameter appeared. According to the different density treatment, logarithmic regression between leaf area and shoot dry weight, linear regression between leaf area and root dry weight, and seedling dry weight, but quadric regression between leaf area and seedling elongation and diameter were significantly found.
Lee, Ju Young;Je, Sun Mi;Lee, Seoung Han;Woo, Su-Young
Journal of Korean Society of Forest Science
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v.102
no.4
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pp.601-607
/
2013
The purpose of this study was to identify the effects of ozone pollution on the one woody species and two indoor plants in controlled environment. Pinus densiflora, Spathiphyllum patinii and Epipremnum aureum seedlings were exposed in both control and ozone chambers to investigate photosynthetic rate, water use efficiency, antioxidative enzyme activities such as GR(Glutathione reductase) and APX(Ascorbate peroxidase) activity and leaf anatomical response. Ozone was fumigated 8 hours for a day with 30 ppb concentration for 50 days. Pinus densiflora seedlings showed no significant difference on photosynthetic rate, water use efficiency, antioxidant enzyme activity during ozone exposure. Ozone concentration (30 ppb in this study) is not high enough to generate ozone damage on Pinus densiflora species. In contrast, ozone generally altered photosynthetic rate, antioxidant enzyme (especially GR) activity and leaf anatomy in two indoor species (Spathiphyllum patinii and Epipremnum aureum) exposed in ozone chamber were significantly differ from those of control in every measurement. These data suggest that two indoor species(Spathiphyllum patinii and Epipremnum aureum) are more sensitive to ozone than Pinus densiflora.
Journal of The Korean Society of Grassland and Forage Science
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v.5
no.2
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pp.136-142
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1985
For better grassland development in the forest, this field experiment was carried out to investigate the effect of thirteen different fertilizer levels of nitrogen(N), phosphorus ($P_2O_5$) and potassium ($K_2O$) on the botanical composition, growth and dry matter yield of grass-clover mixtures grown under trees with 40-50% of shading level. This experiment was arranged as a randomized block design with replications, and performed on the experimental field in the suburban forest of Suweon in 1984. The results obtained are summarized as follows: 1. Plant height and cover degree of grasses found to be high with 28 and 42kg N fertilizer per 10a, while those were the lowest with zero and N-zero fertilizer levels. The degree of bare land after the fourth cut was also high in the low N level. 2. A significant higher degree of leaf green and chlorophyll content of leaf blade was observed in the plot of 28 and 42 kg N per 10a when compared with low N fertilizer plot. However, leaf decay and plant type of grasses tended to be a little poor as the high N was applied. 3. the regrowth plant length and dry weight of grasses after the first cut increased significantly with 28 and 42 kg N fertilizer. However, those showed slightly increased regrowth in the plot of zero and N-zero fertilizer levels. 4. The dry matter yield of grasses was higher with 28 and 42 kg N than that of low N fertilizer level. Higher yields were obtained in the plot of standard ($N-P_2O_5-K_2O$=28-20-24 kg/10a), 50% increase of $N,P_2O_5K_2O$ and N-50% increase, although there were no significant differences among three fertilizer levels. 5. Growth, botanical composition, regrowth and yield of grasses grown under pine trees were significantly influenced by N fertilizer level, regardless of $P_2O_5\;and\;K_2O$. The fertilizer level of $N-P_2O_5-K_2O$ was 28-20-24 kg per 10a for more forage production in the forest. Considering economic yield in this study, however, the optimum fertilizer level of N, $P_2O_5\;and\;K_2O$ was suppose to be 21-28, 10-15, and 12-18kg per 10a, respectively.
The number of spaceborne optical sensors including red-edge band has been increasing since red-edge band is known to be effective to enhance the information content on biophysical characteristics of vegetation. Considering that the Agriculture and Forestry Satellite is planning to carry an imaging sensor having red-edge band, we tried to analyze the current status and potential of red-edge band. As a case study, we analyzed the effect of using red-edge band and tried to find the optimum band width and wavelength region of the red-edge band to estimate leaf area index (LAI) of very dense tree canopy. Field spectral measurements were conducted from April to October over two tree species (white oak and pitch pine) having high LAI. Using the spectral measurement data, total 355 red-edge bands reflectance were simulated by varying five band width (10 nm, 20 nm, 30 nm, 40 nm, 50 nm) and 71 central wavelength. Two red-edge based spectral indices(NDRE, CIRE) were derived using the simulated red-edge band and compared with the LAI of two tree species. Both NDRE and CIRE showed higher correlation coefficients with the LAI than NDVI. This would be an alternative to overcome the limitation of the NDVI saturation problem that NDVI has not been effective to estimate LAI over very dense canopy situation. There was no significant difference among five band widths of red-edge band in relation to LAI. The highest correlation coefficients were obtained at the red-edge band of center wavelength near the 720 nm for the white oak and 710 nm for the pitch pine. To select the optimum band width and wavelength region of the red-edge band, further studies are necessary to examine the relationship with other biophysical variables, such as chlorophyll, nitrogen, water content, and biomass.
Kim, Hong-Kyu;Kim, Yong-Gyun;Lee, Byung-Joo;Lee, Bong-Chun;Yang, Eyu-Seog;Kwon, Kyung-Hak;Kim, Hong-Gi
Journal of Mushroom
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v.7
no.3
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pp.105-109
/
2009
Ten to thirty percent of ginko leaf pomace(GLP) were added to pine sawdust to investigate mycelial growth. Mycelial growth on the medium with GLP was 86~101(mm/28 days) and was slower than that of the control without GLP as, 102(mm/28 days). Mycelial growth time on medium of sawdust with 10 to 20% GLP was similar to the control without GLP as 29 days but that on medium with 30% GLP was delayed for 2 days. The time of pinhead formations of sawdust with 10 to 20% GLP was 7 days, the growth time to harvest was 11 days. These results were similar to those of the control without GLP. The sizes of pileus of treatments with 10 to 30% GLP were tend to be smaller compared with the control. The length of stipe of 10% GLP treatment was 98mm which was longer than that of the control with 91mm. The thickness of stipes of 10 to 30% GLP treatments were 45 to 48mm which were tend to be thicker than that of the control with 45mm. The hardness of stipe were 35,062($g/cm^2$) to 4,1065($g/cm^2$)) which were harder than that of the control with 32,156($g/cm^2$)). GLP treatments seem to be favorable to store or distribute. Yields per volume of GLP added treatments were 88.7g to 95.6g, which was increased 3 to 12% compare to 85.8g of the control without GLP.
Climate change will affect the physiological traits and growth of forest trees. This study was conducted to investigate the effects of an experimental warming on growth and physiological characteristics of Pinus densiflora S. et Z. seedlings. One-year-old P. densiflora seedlings were planted in control and warmed plots in April 2010. The air temperature of warmed plots was increased by $3^{\circ}C$ using infrared lamps from November 2010. We measured shoot height, root collar diameter, above and below ground biomass, chlorophyll contents and leaf nitrogen concentration from March 2011 to March 2013. Seedling height and root collar diameter showed no significant difference between warmed and control plots except for root collar diameter measured in June 2012. Seedling leaf biomass was lower in the warmed ($23.94{\pm}2.10g$) than in the control ($26.08{\pm}1.72g$) plots in 2013. Shoot to root ratio (S/R ratio) was lower in the warmed ($1.09{\pm}0.07$) than in the control ($1.31{\pm}0.10$) plots in 2013. Leaf nitrogen concentrations and chlorophyll contents were not significantly different between warmed and control plots except for leaf nitrogen concentration in 2011. Leaf C/N ratio was increased in 2012 under the warming treatment. Low growth and S/R ratio in warmed plots might be related to the higher temperature and water stress. In the future, the below-ground carbon allocation of P. densiflora might be increased by global warming due to temperature and water stress.
Journal of the Korean Institute of Landscape Architecture
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v.38
no.2
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pp.94-108
/
2010
The purpose of this study is to provide data for the restoration of 'Yongyun(龍淵)' and 'Hwahongmun(華虹門)' through an investigation of the vicinity of their original landscapes at the time of construction of Hwaseong in Suwon and through tracing the transformative process of the environments of this vicinity. The results are as follows; As identified by 'Yongyunjung(龍淵亭)' and 'Yongdugak(龍頭閣)', other names of Yongyun, 'Banghwasuryujung(訪花隨柳亭)', which was built on 'Yongduam', is a facility whose place identity is highlighted with a sense of unity with Yongyun. The south lakefront of Yongyun, bordering Banghwasuryujung, has boundaries that make the best use of the natural geographical features of Yongduam while the current circumference of Yongyun is comparatively shorter than its original state. The size of 'Joongdo(中島)', however, seems to be an example of apparent over-design complement and reorganize 'Joongdo', which had been restored larger than its original state at the time of restoration in the 1970s. The depth of 'Yongyun' was created to be lower than the actual depth, without consideration for its initial depth, as soil was accumulated through continuous flooding after it was created. It is assumed that the original drains which were installed about 10m inside the lake were created facing the stream. As regards the planting environment, a circular planting of willows was made in the outskirts of 'Yongyun', except the 'Yongduam' which is a pure forest, and a mix of 'Pinus densiflora', shrubbery and deciduous broad leaf trees was planted in 'Joongdo'. Of the plants growing in the area of this study, plant species introduced to Korea after Hwaseong was constructed are found, most of which provide interest and attraction. The old pine trees growing in a group once grew in the castle areas of the vicinity even in the 1920s, the period of Japanese occupation, but they disappeared from the area in the aftermath of subsequent urban development and the Korean War. Although restored to the site, the number and space taken up by these trees are insignificant compared to those of the original environment. On the basis of these results, the following is considered necessary for the true restoration of the vicinity of 'Yongyun' and 'Hwahongmun': First, the grounds of 'Yongyun' should be dredged deeply enough to expose the bedrock and should be recreated in the rough outline of a half moon by extension to the southwest toward 'Yongduam' and 'Hwahongmun', and the size of 'Joongdo' should be significantly reduced. Secondly, considering that most plant species, except the pine trees and wild trees in 'Yongduam', are non-native plants introduced in order to provide such attractions such as the appreciation of scenic areas, they should be replaced with native species, mainly with the pine trees which were utilized during the construction of Hwaseong. The weeping willows planted in the 'middle-island' should be relocated to the outskirts of 'Yongyun', and replaced with pine trees as the major trees and maple trees or deciduous broadleaf trees to fill in the gaps. Thirdly, exotic species such as the 'Pinus rigida' planted in a group around 'Banghwasuryujung' and 'Bugammun' and 'Pinus strobus' planted in the vicinity of Hwahongmun' should be removed.
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