This study was carried out to investigate the growth and biomass production of Abies koreana seedlings under different relative light intensity. The 5-year-old potted seedlings were grown for 24 months under different light intensity of 100%, 50%, 30%, 10% and 2% of the natural full light intensity. The results were as follows: 1. Height growth was similar in the seedlings under different light intensities except in 2% of the full sun light intensity, having shown the lowest height growth. 2. Root collar diameter growth was reduced gradually by decreasing of the relative light intensity. 3. The seedlings which were grown under relatively low light intensity showed the later starting date of the stem growth in the next spring and showed the smaller number of new needles, and the smarter number and the shorter length of new shoot of the seedlings. 4. Total dry mass including the dry mass of leaves, shoot and root was reduced by decreasing of the relative light intensity. 5. In case of the seedling grown in one year shading condition, the ratio of the dry mass of current-year needles and stem to that of the above one-year-old needles and stem was ranged from 0.99$\pm$0.25 to 1.06$\pm$0.06 and was not significally different among the seedlings grown under 100%, 50% and 30% of the relative light intensity. And the radio was ranged from 0.60$\pm$0.04 to 0.52$\pm$0.03 in the seedlings grown under 10% and 2% of the relative light intensity, respectively. In case of the seedling grown in two years shading, the ratio of the dry mass of current-year needles and stem to that of the above one-year-old needles and stem was ranged from 0.79$\pm$0.04 to 1.00$\pm$0.03 and was not significally different among the seedlings grown under 100, 50, 30% and 10% of the relative light intensity. And the ratio was 0.29$\pm$0.03 in the seedlings grown under 2% of the relative light intensity, respectively. 6. T/R ratio of the seedlings grown in one year shading condition was ranged from 3.35$\pm$0.33 to 4.61$\pm$0.25 and was not significantly different among the relative light intensities of 100%, 50%, 30% and 10%. The seedlings grown under 2% of relative light intensity showed the highest T/R ratio of 7.36$\pm$0.15. In case of the two years shadings the T/R ratio was ranged from 1.76$\pm$0.11 to 3.12$\pm$0.19 and increased as relative light intensity decreased except 2.01$\pm$0.14 in 2% of relative light intensity.
This study was conducted to investigate the effects of environmental temperature (ET; $21^{\circ}C$ and $32^{\circ}C$) and antibiotic substitute conditions on meat quality of chicken breast during cold storage. Seven treatments were as follows; T1, ET $21^{\circ}C$ + antibiotics (+); T2, ET $21^{\circ}C$ + antibiotics (-); T3, ET $32^{\circ}C$ + antibiotics (+); T4, ET $32^{\circ}C$ + antibiotics (-); T5, ET $32^{\circ}C$ + 0.1% Lactobacillus; T6, ET $32^{\circ}C$ + 0.1% medicinal plant extract; T7, ET $32^{\circ}C$ + 0.1% essential oil. T7 had a higher (p<0.05) pH at 72 h post-slaughter value when compared to the other treatments. The CIE $b^*$ value of treatments at ET $32^{\circ}C$ showed significantly (p<0.05) higher when compared to the treatments at $21^{\circ}C$. T7 also had significantly (p<0.05) lower TBARS values than the other treatments as the storage time increased. T6 contained significantly (p<0.05) higher extractability of salt-soluble protein contents than the other treatments. The results from SDS-PAGE showed that the actin protein decreased for ET treatments at $32^{\circ}C$. The concentration of actin protein was not significantly different among T1, T2 and T7. Therefore, these result suggested that the antibiotic alternative with essential oil was effective under the high environmental temperature ($32^{\circ}C$) for chicken meat production.
It is the aim of this paper to elucidate the meaning of 'Sangsaeng' in Daesoon Thought on the basis of its relation to Life and Spirit in the philosophy of Hegel. To achieve this aim, this article compares three important concepts from Daesoon Thought, namely the 'gods of heaven and earth,' 'Haewon', and 'Sangsaeng' with Hegel's 'Life,' 'Spirit,' and the 'struggle for recognition.' This paper will clarify the commonalities as well as the differences between Daesoon Thought and Hegelian philosophy. The comparison between Hegel's concept of 'life' and the 'gods of heaven and earth' shows a specific relationship between a life and a soul which is characterized by duality. The point of similarity is that the two thoughts regards the soul as the basis of all things in nature including the life itself and spirit. This is the duality of the soul in nature and spirit as the truth of nature. But the difference is that Hegel does not reduce all things in nature including life itself to the soul as the truth of nature. This paper will argue that Hegel's idea of spirit returning from nature to itself has a similarity with the essence of Haewon in Haewon-sangsaeng. Hegel insists that spirit submerges initially in nature just as human beings in Daesoon Thought have inherent Won. The realization of the spirit in the Subjective Spirit shows that the spirit sublimates this initial submergence in nature und reveals itself in corporeality. This study will suggest that this realization of spirit including the struggle for recognition may be interpreted as the meaning of Sangsaeng.
Kim, Soo-Ryang;Jeon, Sang-Joon;Hong, In-Gi;Kim, Dong-Kyun;Lee, Myung-Gyu
Journal of Animal Environmental Science
/
v.18
no.2
/
pp.99-110
/
2012
The purpose of the study is to collect basis data for to establish standard administrative processes of liquid fertilizer treatment. From this survey we could make out the key point of each step through a case of effective liquid manure treatment system in pig house. It is divided into six step; 1. piggery slurry management step, 2. Solid-liquid separation step, 3. liquid fertilizer treatment (aeration) step, 4. liquid fertilizer treatment (microorganism, recirculation and internal return) step, 5. liquid fertilizer treatment (completion) step, 6. land application step. From now on, standardization process of liquid manure treatment technologies need to be develop based on the six steps process.
Kim, Chang Seong;Go, Ji Su;Choi, Seon-Gyu;Kim, Sang-Tae
Economic and Environmental Geology
/
v.47
no.4
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pp.317-333
/
2014
The Pocheon iron (-copper) deposit, located at the northwestern part of the Precambrian Gyeonggi massif in South Korea, genetically remains controversial. Previous researchers advocated a metamorphosed (-exhalative) sedimentary origin for iron enrichment. In this study, we present strong evidences for skarnification and Fe mineralization, spatially associated with the Myeongseongsan granite. The Pocheon deposit is composed of diverse carbonate rocks such as dolostone and limestone which are partially overprinted by various hydrothermal skarns such as sodic-calcic, calcic and magnesian skarn. Iron (-copper) mineralization occurs mainly in the sodic-calcic skarn zone, locally superimposed by copper mineralization during retrograde stage of skarn. Age data determined on phlogopites from retrograde skarn stage by Ar-Ar and K-Ar methods range from $110.3{\pm}1.0Ma$ to $108.3{\pm}2.8Ma$, showing that skarn iron mineralization in the Pocheon is closely related to the shallow-depth Myeongseongsan granite (ca. 112 Ma). Carbon-oxygen isotopic depletions of carbonates in marbles, diverse skarns, and veins can be explained by decarbonation and interaction with an infiltrating hydrothermal fluids in open system ($XCO_2=0.1$). The results of sulfur isotope analyses indicate that both of sulfide (chalcopyrite-pyrite composite) and anhydrites in skarn have very high sulfur isotope values, suggesting the $^{34}S$ enrichment of the Pocheon sulfide and sulfate sulfur was derived from sulfate in the carbonate protolith. Shear zones with fractures in the Pocheon area channeled the saline, high $fO_2$ hydrothermal fluids, resulting in locally developed intense skarn alteration at temperature range of about $500^{\circ}$ to $400^{\circ}C$.
Late Cretaceous to early Tertiary volcanic rocks in the Kyongsang basin exhibit high-K calc-alkaline characteristics, and originated from the magmatism related genetically to subduction of Kula-Pacific plate. They represent HFSE depletion and LlLE enrichment characteristics as shown by magmas related to subduction. Early studies on the depth of magma generation has been estimated as 180-230 km based on K-h relation should be reevaluated, because the depth of peridotite partial melting with 0.4 wt. % water is 80-120 km at subduction zone, and subducting slab in premature arc can melted even lower than 70 km. Moreover the increase of potassium contents depends on either contamination of crustal material and fluids of subducting slab or low degree of partial melting. If the inclination of subduction zone is 30 degrees and the depth to the Benioff zone is 180-230 km, the calculated distance between the volcanic zone and trench axis would be 310-400 km. It is unlikely because the distance between the Kyongsang basin and trench during late Cretaceous to early Tertiary is closer than this value and not comparable with generally-accepted models in subduction zone magmatism. $K_{55}$ of the volcanics in the Kyongsang basin is 0.3-2.3 wt.% and the average indicate that the depth ranges between 80-170 km on the diagram of Marsh, Carmichael (1974). Fractionation from garnet lherzolite, assumed the depth of 180-230km, is not consistent with the REE patterns of the volcanoes in the Kyongsang basin. Futhermore, the range of depth suggested by many workers, who studied magmatism related to subduction, imply shallower than this depth. Crustal thickness calculated by the content of CaO and $Na_2O$ is about 30 km and about 35 km, respectively. Paleo-crustal thickness during late Cretaceous to early Tertiary times in the Kyongsang basin inferred about 30 km calculated by La/Sm versus LaJYb data, which is also supported by many previous studies.
Petrov, Klim Alekseevich;Dudareva, Lyubov Vissarionovna;Nokhsorov, Vasilii Vasilevich;Perk, Aleksandr Aleksandrovich;Chepalov, Valentin Azotovich;Sophronova, Valentina Egorovna;Voinikov, Victor Kirillovich;Zulfugarov, Ismayil S.;Lee, Choon-Hwan
Journal of Life Science
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v.26
no.5
/
pp.519-530
/
2016
Vegetative plants in Yakutia are naturally frozen when they are covered with snow in the fall, and they function as green cryo-fodder that is a source of biologically active substances and nutrients for herbivorous animals. We observed a considerable increase in the total fatty acid content in the leaves of Avena sativa, Elytrigia rеpens, Equisetum variegatum and Equisetum scirpoides during the fall period. However, the degree of unsaturation of fatty acids was not higher in the frozen plants covered with snow than in the summer plants, with the exception of E. scirpoides, a dwarf horsetail found in the Pole of Cold in the northern hemisphere. In the internal adipose tissue of the Yakut horse (young horse meat), 18 fatty acids were found, including 10 saturated ones. Monounsaturated oleic С18:1 (n-9) acid and polyunsaturated α-linolenic С18:3 (n-3) acid were equally prevalent among the unsaturated fatty acids, accounting for 70% of the total unsaturated fatty acids. This composition of polyenoic fatty acids in the internal adipose tissue indicates that the Yakut horse actively feeds on the fall vegetation and the wintergreen sedge-grass. We believe that the high plant-specific free fatty acid content in the tissue of Yakut horses may play an important role in the regulation of their resistance to long-term low-temperature stress.
Journal of the Korean Institute of Landscape Architecture
/
v.48
no.5
/
pp.59-66
/
2020
Recently, cultivation and management technologies have been needed to adapt due to climate change, which is causing abnormal weather conditions. One technique is to increase the utilization of evergreen broad-leaved species with high ornamental value. A total of five treatments were installed (1m×22.5m), including 60g/㎡ and 80g/㎡ using two types mulching material with an overlapping and hole-drilling mulching method and these were compared to un-mulching treatment a total of planted 92㎡ attheWol-aTestSiteForestattheForestforBiomaterialsResearchCenterinJinju-si, Gyeongsangnam-dofor 10monthsusing3-years-oldQuercusglaucaThunb. In comparison with the control site, the 60g/㎡ overlapping method was about 1.9 times higher than the root collar diameter, but there was no statistical significance between the treatments. Healthy seedlings were found to meet these conditions due to high biomass values and below and T/R ratios of 3.0 or lower and H/D ratios of 7.0 or lower. Comparing the values of LWR, SWR, and RWR, which can be evaluated for seedling due to the mulching treatments, as compared to the control, the growth of the ground areas including leaves and stems was enhanced, but the growth of the underground areas containing roots tended to have high control values. Based on this, the SQI value, which can be evaluated for the comprehensive quality of seedlings, was found to be significantly different between the control site and the mulching treatment sites, confirming that the growth and growth improvement effects were achieved with mulching treatments. The chlorophyll content analysis showed that there was a significant difference from the control site, and it was judged that weed generation in the control acted as an environmental stress, causing a decrease in chlorophyll content. It was found that the overlapping 80g/㎡ of polypropylene mulching material generated about 4 times fewer weeds than the control, and the manpower required for the mulching test field and weeding were equal at 3.3 people/100㎡/1 day. Mulching treatments have demonstrated a significant difference in the promotion of growth and quality of the seedlings and are judged as an alternative that can reduce the economic burden incurred by the purchase of the supplies and the manpower required to weed forestry plantations.
The objective of this study was to find optimal nutrient condition of container seedling production of two tropical species for high seedling quality. This study was conducted to investigate photosynthesis, chlorophyll fluorescence, chlorophyll contents, and growth performances of container seedlings of Eucalyptus pellita and Acacia mangium growing under four different fertilization treatments (Con., $0.5\;g{\cdot}l^{-1}$, $1.0\;g{\cdot}l^{-1}$, and $2.0\;g{\cdot}l^{-1}$ fertilization). E. pellita showed outstanding photosynthetic capacity, photochemical efficiency, and chlorophyll contents at $1.0\;g{\cdot}l^{-1}$ fertilization. Meanwhile, E. pellita showed the highest photosynthetic capacity, photochemical efficiency, and chlorophyll contents at $2.0\;g{\cdot}l^{-1}$ fertilization, as fertilization rate were increased, those of A. mangium increased. Like physiological characteristics, Both E. pellita at $1.0\;g{\cdot}l^{-1}$ fertilization and A. mangium at $2.0\;g{\cdot}l^{-1}$ fertilization were higher root collar diameter, height, biomass, and seedling quality index than other treatments. These results showed that E. pellita at $1\;g{\cdot}l^{-1}$ fertilization and A. mangium at $2.0\;g{\cdot}l^{-1}$ fertilization is optimal nutrient condition, respectively. Moreover, fertilization rate controlling is very important for growth and seedling quality of container seedling.
This study suggests the direction and practice of Christian education through ecological Christian spirituality required in front of the ecological crisis. Environmental destruction and ecosystem problems are recognized as a serious crisis that can threaten human survival. As a result, the development of material civilization, which humanity has taken for granted, has been questioned, and changes in human consciousness and thoughts at the root of the ecological crisis have become inevitable. The crisis of civilization demands a new spirituality, and the spirituality required in front of the ecological crisis must be a life-friendly spirituality. The discourses on the ecological crisis that have emerged since the 1970s provide a fundamental perspective on the ecological crisis. Ecological spirituality such as 'immanence', 'interrelationship', 'community', 'healing and emancipation', and 'sustainability' are concepts that can understand and aggregate the discussions of the various discourses above. Based on this, this paper examines Christian ecological spirituality by dividing it into the areas of God, humans, and body. Through this, the Christian education was proposed as a practical place for self-depreciation for a simple life through the understanding of God, who emptied himself out of the transcendent God who reigns over all things, shared the pain of all things, maintained all things together, and lived in them. There, meditation and hospitality can be a place of practical Christian education where one can enrich one's inner self for a simple life. Christian education was proposed as a place of holistic knowledge through ecological Christian spirituality that emphasizes the spirituality of the body from dichotomous thinking that belittles the body. There, the Holy Communion is important as a place where both holistic education to restore the spirituality of the body and ecological education can be held at the same time. Through this, I hope that Christian education will be a place of education not only for the reason but also for the holistic knowledge of Christ and for learning how to 'together' with the ecosystem and neighbors.
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