• Journal of Environmental Health Sciences
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• v.24 no.2
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• pp.1-8
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• 1998

This study was carried out to investigate the distribution of PAHs in atmosphere and soil, and their relationship, accumulation tendency in soil, and its contain burden ratio (%) the PM$_{10}$ and soil were sampled adjacent to a roadside and analysed by HPLC from August 25th 1996 to September 22nd 1996 in Seoul and Kunggido area. The main results are summarized below 1. The concentration of PM$_{10}$ in the ambient air was showed in order of industrial region ($142.70\pm 21.77 \mu g/m^3$), commercial region ($136.51\pm 31.62 \mu g/m^3$), residential region ($110.12\pm 14.98 \mu g/m^3$), greenbelt region ($77.44\pm 12.12 \mu g/m^3$), respectively. 2. Distribution of PAHs concentration level in PM$_{10}$ and soil was showed in order of industrial region, commercial region, residential region, greenbelt region, respectively in all components. 3. The contain burden ratio (%) in PM$_{10}$ was attested that BbF was the highest contain burden component (21.7-32%) and An was the lowest contain burden component (0.35-1.95%) in all region. 4. The contain burden ratio (%) in soil was attested that Pb (20.5%) was the highest and An (0.8%) was the lowest contain burden component in industrial region and BbF (21.9%) and An (0.45%) were the same tendency in commercial region and Py (21.6%) and BkF (3.5%) were in residential region, Py (29%) and An (2.6%) were in greenbelt region. 5. The relationship between concentration of PAHs in PM$_{10}$ and soil was attested that the component of BbF (r=0.514) was very highly correlated, and there were significant in Fl and BaA in soil between industrial region and commercial region (P<0.05).

• Proceedings of the Korean Nuclear Society Conference
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• 2003.05a
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• pp.177-177
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• 2003

• Proceedings of the Korean Nuclear Society Conference
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• 2004.05a
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• pp.163.2-163.2
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• 2004

• Applied Microscopy
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• v.8 no.1
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• pp.53-66
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• 1978

An attempt has been made to discriminate the synapses in the striatum consisting caudate nucleus, putamen and fundus striati of the cat with emphasis on the characteristic structures of axon terminals and postsynaptic profiles. The differentiation is based on the size and shape of vesicle in the bouton terminal, and the symmetrical or asymmetrical thickening the pre- and postsynaptic membrane. Four types of synapses could be differentiated: Type I: the bontons with asymmetrical,synaptic thickenings contain round 45 nm diameter vesicles and contact cell soma, dendritic shafts and dendritic spines (74%). Type II : the boutons contain round 45nm diameter vesicles and are associated with symmetrical membrane thickenings. These synapses are formed on the soma and dendritic shafts (6%). Type III: the boutons with symmetrical membrane thickenings contain 50-60 nm diameter pleomorphic vesicles, and contact soma and dendritic shafts (18%). Type IV: the terminals contain flattened vesicles ($25{\times}45 nm$) and are associated with symmetrical membrane thickenings. These synapses are found in contact with soma and dendritic shafts. Additionally, the bouton en passant, which is expanded from myelinated or unmyelinated axons containing round vesicles (45nm diameter) contacts the dendritic shaft or dendritic spine with asymmetrical membrane thickenings. Two unusual types of synapses, axo-axonic and dendro-dendritic, are found occasionally.

• Korean Institute of Interior Design Journal
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• v.25 no.5
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• pp.157-166
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• 2016

This study is intended to examine the various kinds of emptiness that are shown in the empty spaces created by Hyo-Sang Seung and Louis I. Kahn. Architecture creates the usefulness of a certain space thanks to its emptiness. The word, 'Emptiness' has the following meanings, 'non-fulfillment', 'non-existence', 'emptiness', 'blankness', 'non-visibility' and 'non-limitation', etc. Such concepts of emptiness can be broadly divided into 'ideological emptiness', 'aesthetic' and 'architectural spatial'. Comparisons regarding such concepts of emptiness as they are expressed in the architectural spaces created by Hyo-sang Seung and Louis I. Kahn shall be identified in this study. Hyo-sang Seung tried to leave numerous open possibilities which can contain everything into a certain space since 'emptiness' is not being used at this moment. Louis I. Kahn tried to contain into a space the essence and silence of that space before something that exists is created. The 'emptiness' created by Hyo-sang Seung and Louis I. Kahn is a specific space which can contain more kinds of non-visible spaces than some visible ones. Thus, such spaces may contain various potentials which are possible because they are empty, because of changes in nature and time, and because of silence and intentions going beyond an artist's original intent.

• Plant Resources
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• v.4 no.3
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• pp.153-156
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• 2001

Today information is important for man and total fields. Science field is not exception. Currently information age things of information is only useful for man and total industry. So bioinformation is necessary of biodiversity in broadly wide and detailed information. Among information, bioinformation of biodiversity is important and utilization of living things. Among them, the mushroom(higher fungi) are an important part in ecosystem as a decomposer responsible for recycling materials. Many living things today, however, have endangered by environmental pollution and ecological destruction. The higher fungi also are not exception. Mushroom has been used for food sources, pharmacy and forests resources from ancient times. Among biodiversity, database of mushroom is very necessary for university, institute and industry. This DB contains four items of native mushroom(higher fungi) from Korea. first item contain species, genus, family, order class, ad division according to the classification. Second item contain pharmaceutical purpose, food source, culture, toxic, anti-cancer of the application. Third item contain symbiosis, rotten trees of the ecological resources. Fourth item contain geographical distribution and illustrated literature. Information system is also available using KRISTAL II for searches on the WEB in URL http://ruby. kisti. re. kr/∼mushroom.

• Nuclear Engineering and Technology
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• v.33 no.5
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• pp.468-482
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• 2001

As a process of Direct Containment Heating (DCH) issue resolution for Korean Standard Nuclear Power Plants (KSNPs), a containment load/strength assessment with two different approaches, the probabilistic and the deterministic, was performed with all plant-specific and phenomena-specific data. In case of the probabilistic approach, the framework developed to support the Zion DCH study, Two-Cell Equilibrium (TCE) coupled with Latin Hypercubic Sampling (LHS), provided a very efficient tool to resolve DCH issue. In case of the deterministic approach, the evaluation methodology using the sophisticated mechanistic computer code, CONTAIN 2.0 was developed, based on findings from DCH-related experiments or analyses. For three bounding scenarios designated as Scenarios V, Va, and VI, the calculation results of TCE/LHS and CONTAIN 2.0 with the conservatism or typical estimation for uncertain parameters, showed that the containment failure resulted from DCH loads was not likely to occur. To verify that these two approaches might be conservative , the containment loads resulting from typical high-pressure accident scenarios (SBO and SBLOCA) for KSNPs were also predicted. The CONTAIN 2.0 calculations with boundary and initial conditions from the MAAP4 predictions, including the sensitivity calculations for DCH phenomenological parameters, have confirmed that the predicted containment pressure and temperature were much below those from these two approaches, and, therefore, DCH issue for KSNPS might be not a problem.

• Korean Journal of Pharmacognosy
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• v.20 no.2
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• pp.88-95
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• 1989

Traditional Chinese herbal drugs, namely, Atractylodes Rhizome and Atractylodes Rhizome White were identified by means of chemical analysis such as TLC and GC/MS. In Korea, the old-grown and the newly-grown rhizomes of Atractylodes japonica Koidzumi (Compositae) are used as the Atractylodes Rhizome and the Atractylodes Rhizome White, respectively. Both rhizomes contain the atractylon asa major spot on TLC. The content of atractylon in a newly-grown rhizome of A. japonica (Atractylodes Rhizome White called in Korea) appears to contain much larger quantity in comparison with that of an old-growon one (Atractylodes Rhizome). The TLC spot pattern analysis showed that rhizomes of A. japonica and A. macrocephala contain the atractylon as a major indicator spot, but no atractylodin (extreamly small amount). However, rhizomes of A. lancea De Candolle and A. koreana Kitamura contain the atractylodin as a major indicator spot.

• Nuclear Engineering and Technology
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• v.48 no.5
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• pp.1140-1153
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• 2016

Since the inception of nuclear power as a commercial energy source, safety has been recognized as a prime consideration in the design, construction, operation, maintenance, and decommissioning of nuclear power plants. The release of radioactivity to the environment requires the failure of multiple safety systems and the breach of three physical barriers: fuel cladding, the reactor cooling system, and containment. In this study, nuclear reactor containment pressurization has been modeled in a large break-loss of coolant accident (LB-LOCA) by programming single-cell and multicell models in MATLAB. First, containment has been considered as a control volume (single-cell model). In addition, spray operation has been added to this model. In the second step, the single-cell model has been developed into a multicell model to consider the effects of the nodalization and spatial location of cells in the containment pressurization in comparison with the single-cell model. In the third step, the accident has been simulated using the CONTAIN 2.0 code. Finally, Bushehr nuclear power plant (BNPP) containment has been considered as a case study. The results of BNPP containment pressurization due to LB-LOCA have been compared between models, final safety analysis report, and CONTAIN code's results.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2001.11a
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• pp.9-14
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• 2001

Today information is important for man and total fields. Science field is not exception. Currently information age things of information is only useful for man and total industry. So bioinformation is necessary of biodiversity in broadly wide and detailed information. Among information, bioinformation of biodiversity is important and utilization of living things. Among them, the mushroom(higher fungi) are an Important part in ecosystem as a decomposer responsible for recycling materials . Many living things today, however, have endangered by environmental pollution and ecological destruction. The higher fungi also are not exception. Mushroom has been used for food sources, pharmacy and forests resources from ancient times. Among biodiversity, database of mushroom is very necessary for university, institute and industry. This DB contains four items of native mushroom(higher fungi) from Korea. first item contain species, genus, family, order class, ad division according to the classification. Second item contain pharmaceutical purpose, food source, culture, toxic, anti-cancer of the application. Third item contain symbiosis, rotten trees of the ecological resources. Fourth item contain geographical distribution and illustrated literature. Information system is also available using KRISTAL II for searches on the WEB in URL http://ruby. kisti. re. kr/～mushroom