• Journal of the Korea Institute of Building Construction
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• v.23 no.5
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• pp.537-546
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• 2023

For the purpose of fire delineation within buildings, steel walls in Korea are mandated to undergo rigorous certification as fire-resistant entities, substantiated via a series of qualitative assessments. Predominantly, these evaluations comprise the fire resistance test paired with supplementary examinations; specifically for steel walls, these encompass the gas hazard and panel bending strength tests. Given the prevalence of semi-noncombustible core materials, gas hazard tests are largely rendered superfluous, pivoting the focus solely onto the panel bending strength test during the certification trajectory. This particular test is designed to gauge the flexural robustness of individual wall panels. An enhanced bending strength is postulated to fortify both the structural integrity and thermal insulation of the wall by mitigating potential deformations. In this scholarly exploration, an analytical deep dive was undertaken into extant, valid certification test datasets. The endeavor aimed to ascertain the depth of correlation between the designated fire resistance metric and the bending strength, the latter being the sole supplementary assessment for steel walls. In distilling the findings, it was discerned that temperature elevations beyond baseline values exhibited no statistically salient linkage with the panel's bending strength.

• Bangmulgwan gwa yeongu (The National Museum of Korea Journal)
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• v.1
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• pp.18-35
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• 2024

The Tomb of Jang Mui was discovered and investigated during the Japanese colonial era. It has provided key archaeological material for identifying the Daebang Commandery mentioned in historical records as Sariwon in Hwanghae-do Province when some bricks used in the construction of the tomb were found to be stamped with the official title "Prefect of Daebang Commandery." The discovery of the Tomb of Jang Mui served to confirm that the brick chamber tombs found along the Daedonggang River in 1909 were related to the Nangnang Commandery. It can be viewed as a major archaeological breakthrough that settled a debate over the locations of the Daesu River and Daebang Commandery that had been ongoing since the early Joseon Dynasty. Despite its significance for archeology and ancient Korean history, the circumstances of the discovery and investigations of the Tomb of Jang Mui have not been thoroughly examined. Inscribed bricks and roof tiles unearthed during the excavation conducted by Sekino Tadashi in 1912 are currently housed at The University Museum of The University of Tokyo. A number of other bricks excavated from the Tomb of Jang Mui are in the collection of the National Museum of Korea. Main agents of the investigations into these materials have not all been identified. Only some records on the materials collected during the investigations by Nomori Gen and others specify the main investigators. Inscribed bricks from other related tombs are also found in the Tokyo National Museum and at several universities in Japan. It is hoped that a comprehensive report incorporating all these materials can be written. Based on a reinterpretation of its structure conducted by Jung In-seung in 2010, the Tomb of Jang Mui has been dated to 348. This means it was not built during the Daebang Commandery period. The most compelling archaeological evidence regarding the location of the Daebang Commandery and its local capital has been undermined. It is hoped that active discussions will be held on the issue of the Daebang Commandery and its local capital.

• Journal of Sinology and China Studies
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• v.79
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• pp.197-222
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• 2019

The Wisdom of Royal Glory (Kutadgu Bilig) is a Karakhanid work from the 11th century written by Yusuf Khass Hajib. Translated, the title means something like "The Wisdom which brings Happiness" or "The Wisdom that Conduces to Royal Glory or Fortune" or "Wisdom Which Brings Good Fortune". The text reflects the author's and his society's beliefs, feelings, and practices with regard to quite a few topics, and depicts interesting facets of various aspects of life in the Karakhanid empire. So the famous Chinese writer Lao she once pointed out that "it is not only the Uyghur's precious heritage, is also a priceless art treasures of our country's culture history." This paper mainly discusses about the variety of religious thought, such as primitive belief(teng ge li worship, natural worship, animal worship, shamanism), Manichaeism, Buddhism, Islam, etc.

• Cartoon and Animation Studies
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• s.37
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• pp.307-334
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• 2014

Satirical cartoon features figure characters that liken to particular figures or social phenomenon to satirize particular figures or social phenomenon. Through the words and actions of figure characters in satirical carton, fraudulentact of man in power or irrational social phenomenon is revealed. The National Intelligence Service (NIS) female agent that is the figure character of this study has been appearing in satirical cartoon for a long time and it likens to social phenomenon instead of a actual figure. The reason why the NIS female agent has been appearing as a figure character in satirical cartoon for a long time is because related social phenomenon has not ended and is still in progress. In addition, the reason why it likens to social phenomenon instead of an actual figure is based on the fact that it is not easy to identify her face that has been hidden, which makes it difficult to exaggerate the characteristic of the figure. Her hidden face is also an expression of the desire to hide that is symbolized by baseball cap and muffler. Her hidden face and the desire to hide make it easy to substitute to other related figure or social phenomenon instead of actual figure. Namely, outward appearance of the NIS female agent has a good condition for combining 'added significance' in satirical cartoon. Irrelevant to actual NIS female agent, a satirical cartoon figure of NIS female agent is being combined with various meanings when needed and it is substituted as another figure, group or social phenomenon as the actual figure disappears. Accordingly, the purpose of this study is to reveal the role of figure character in satirical cartoon by symbolically analyzing the figure character that appears in satirical cartoon as 'NIS female agent'. The followings were revealed through the symbolic analysis of figure character in satirical cartoon in this study. First, satirical cartoon satirizes social phenomenon. Figure character in satirical cartoon satirizes social phenomenon in place of actual figure. Second, satirical cartoon satirizes core or embarrassing area of irrational social phenomenon created by politics. Figure character in satirical cartoon satirizes core or embarrassing area of social phenomenon by revealing it in place of actual figure. Third, satirical cartoon sends a message of warning to a responsible person of irrational social phenomenon created by politics. Figure character in satirical cartoon sends a message of warning to responsible person of irrational social phenomenon created by politics in place of actual figure. Fourth, satirical cartoon provides catharsis for enduring wound or stress received by individual due to irrational social phenomenon created by politics. Figure character in satirical cartoon provides catharsis for enduring wound or stress received by individual due to irrational social phenomenon through satirizing and ridiculing actual figure.

• Journal of Korean Society of Forest Science
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• v.81 no.2
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• pp.156-163
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• 1992

Pinus koraiensis (Pk), P. rigida (Pr) and P. rigida ${\times}$ P. taeda (Pr. t) seedlings in a bare-rooted nursery were artificially inoculated with Pisolithus tinctorius (Pt) and Thelephora terrestris (Tt) to test long term effects of ectomycorrhizal inoculation on host growth. Mycelial inocula of Pt and Tt were mass-cultured in vermiculite-peatmoss mixture and introduced into fumigated nursery soil before seed sowing. Bare-rooted, inoculated seedlings at one to four years of age were outplanted to the field with $P_2O_5$ content of 25 ppm in soil. At the time of outplanting, Pk seedlings(4 years old), Pr seedlings(2 years old), and Pr.t seedlings(1 year old) all infected by Pt were significantly taller by 28%. 26%, and 77%, respectively, than controlled seedlings infected by natural population of mycorrhizal fungi in the non-fumigated plot. Ten years after inoculation or six to nine years after outplanting, Pk seedlings inoculated with Pt were significantly taller by 9% Pr.t seedlings significantly taller by 18%, and Pr slightly Caller by 2%(not significant) than controlled seedlings, suggesting that the stimulatory effect of Pt on host growth gradually declined or became minimal after outplanting. Tt failed to stimulate host growth either in the nursery or in the field, and the survival rate of outplanted seedlings was not different among fungal treatments. Considerable loss of the infected root system during lifting the seedlings for outplanting would be the primary cause of the reduced effect of Pt in the field. Pt infected more than 90% of the fine roots in the fumigated nursery during the first growing season, but Pt assumed to fail to compete successfully with natural population of ectomycorrhizal fungi in the field. It is necessary to select other mycorrhizal fungi which adapt well in both nursery and field.

• Journal of the Korean Society of Food Science and Nutrition
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• v.33 no.7
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• pp.1079-1084
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• 2004

The present study was conducted to compare antioxidant activity of green teas, fermented teas and other related common teas by examining radical scavenging activity using DPPH (2,2 diphenyl l-picryl hydrazyl). Scavenging activity ($SC_{50}$/) of epigallocatechin gallate (EGCG) for 0.1 mM DPPH radical was 5.5 $\mu$M or 4.2 mg/L by weight, then catechin, 14 $\mu$M or 2.5 mg/L and vitamin C, 22 $\mu$M or 3.9 mg/L, respectively. Kyokuro tea (okro) powder of 24.2 mg/L or green tea powder of 25.2 mg/L was used to reach $SC_{50}$/ for 0.1 mM DPPH. One serving of 2 g green tea provides antioxidant activity equivalent to 109∼147 mg EGCG, 145∼185 mg catechin or 131∼168 mg vitamin C. Teas from the first harvest had the highest radical scavenging activity when compared with later harvest green teas grown in the same region, but there is virtually no difference by the harvest time. A Chinese green tea, Dragon well had the highest antioxidant activity among other green teas tested providing antioxidant capacity equivalent to 168 mg EGCG or 188 mg vitamin C per 2 g serving, but partially fermented Chinese teas had much lower antioxidant activity than any green tea tested. Black tea which is fully fermented showed as strong antioxidant activity as green teas (76.3 mg vs 86.7∼67.6 mg per tea bag). One tea bag of green teas from market provided antioxidant capacity equivalent to 52∼86 mg EGCG, 70∼105 mg catechin or 63-96 mg vitamin C. Teas made of persimmon leaf, pine needle, mulberry leaf had comparatively low anti-oxidant activity equivalent to 2.5∼4.8 mg EGCG or 15∼21 mg vitamin C per teabag. The third brewed green tea still had enough antioxidant activity, while tea from tea bag brewed for 3 min or 5 min did not have any difference in their antioxidant activity. More systemic studies are needed to clarify the relationship between tea catechins and antioxidant capacity focusing on how growing, harvest time, fermentation and other processes can influence on this.

• Development and Reproduction
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• v.14 no.2
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• pp.143-154
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• 2010

This article analyzes two leading Korean cases which led to opposite conclusions: the Boramae Hospital Case (Korean Supreme Court 2002 Do 995) and the Shinchon Severance Hospital Case (Korean Supreme Court 2009 Da 17471). In doing so, it pays particular attention to the acceptance, modification, and rejection of paternalism, specifically 'physician paternalism' and 'familial paternalism', both of which have long and strongly influenced the Korean medical environment. In Boramae Hospital, the Court emphasized the obligation of the physician in terms of the life of the patient (eg: protecting and preserving the life and welfare of the patient). Its position seemed to be based on the traditional physician paternalism which presupposes the ability of physicians to identify right and wrong choices according to natural laws. However, the Court saw itself as the final arbiter of who identifies and determines the real world content and consequences of that natural law. In short, the Court elevated itself to the supreme guardian of the patient, and held that its decision cannot be overruled by that of the patient's family. So without specifically referring to the importance of the family and the role of familial decisions, both long-observed traditions in medical decision-making in Korea, the Court shifted away from familial paternalism. In Shinchon Severance Hospital, the Court explained the meaning of the patient's powers of self-rulemore concretely, explaining its scope and substance in greater detail. The Court held that one can exercise the right of self-rule, even over issues such as death, in the form of 'previous medical directions'. However, this case does not represent a wholesale acceptance of medical autonomy (ie: it does not accept self-rule unconditionally). Rather, the Court accepted the importance of the opinions and decision of physicians and of the Hospital Ethics Commission, and the Court still retained to itself the authority to review and make alterations to 'material' decision. The Court did not overlook the importance of the decision of the patient's family, but it also did not relinquish its status as supreme guardian, emphasizing the 'objective' nature of a decision from the court.

• Magazine of the Korean Society of Agricultural Engineers
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• v.14 no.2
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• pp.2622-2633
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• 1972

This study was attempted in order to search for phyosical properties on various mix designs of concrete as ne of studies relating top revention against corrosion by action of sea water in the West Sea. In this study, as concerete mix design, fly ash, pozzolith and vinsolresin were used as admixtures for normal portland cement respectively, and pozzolan cement and normal cement were also used for each plain concrete. Concrete specimens were made and cured in accordance with the Korean Standard Specifications for concrete. In thetest, compressive strengths of the specimens were measured at the following ages; 7-day, 28-days and 3-months. Absorption test was made by immersing the specimens in water kept at boiling temperature for 5 hours. The results obtained from the tests are summarized as follows; 1. The use of fly ash as an admixture in mix design of concrete, has an effect on compressive strength at each age. But it is actually not effective on absorption by concrete, as the result of the fly ash concrete is almost the same at that of ordinary plain concrete. 2. The use of pozzolith as an admixture in mix design of concrete, has an effect on both of compressive strength at each age and absorption rate. The pozzolith is more effective than vinsol resin, relating to improvement for physical proreties of concrete. 3. The use of vinsol resin as an admixture in mix design of concrete, has also an effect on both of compressive strength at each age and absorption rate. As the above fact, effectiveness of the vinsol resin is some what lower than pozzolith, as far as physical properties of the concrete are concerned. 4. Plain concrete used pozzolan cement only is the most effective on both of strength at each age and absorption rate in this study. The pozzolan cement is characteristic of higher strenth as the age is later. 5. Relationship between compreessive strengths and absorption rates of the concrete is shown by a different regression line dependingon ages. The gradient of the regression line is steeper as the age is later. 6. Throught physical test, it may be expected that the use of pozzolith and vinsol resinas asan admixture respectively will be better resistant than fly ash or ordinary plain concrete and that plain pozzolan concrete will also be the best resistant to action of sea water due to improvement of theirphysical properties.

• Journal of the Korean Geographical Society
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• v.40 no.6 s.111
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• pp.748-761
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• 2005

This study attempts to describe and periodinate the sixty years history of Korean Geographical Society. For the purpose, several numerical records concerned with the society were employed. The Korean Geographical Society was established in 1945 as a first academic society in geography. The international participation of Korean geographers started when it applied for the IGU membership in 1959. Next year, Korean's application was approved at the 19th IGC in Stockholm. The 40 years later, Korea came to host the 29th IGC in Seoul. This means that the activity of Korean geographers has been vigorous during the 40 years in accordance with high growth of Korean economy. The number of the society member reached 116 in the latter part of 1960s. It grew steadily from 1970s to 1990s and now amounts to around one thousand. It is believed that such trend is associated with the increase of geographical department and the development of graduate programs during past 40 years in Korea. The number of the advanced degree holders was only 2 in 1960, and now reachs 338 among which 166($43\%$) obtained from the foreign country. The Int issue of the society journal 'Geagraphy' -the title was changed to 'Journal of the KGS' in 1993-was published in 1963. It has gradually developed into the annual for $1966{\~}1973$, the semi-annual for $1974{\~}1990$, the quaterly for $1991{\~}1997$, and the hi-monthly until 2005. One issue per year has been published in English since 1993. The annual number of papers accepted by the editorial board has increased from 7 in 1960s-1970s to 52 in the new millennium. In terms of the specialty distribution of total 725 papers after 1963, many Korean geographers have been preferable to the field of socio-economic and urban geography as their major, and next histro-cultural and physical geography. Recently, a growing number of younger geographers are more interested in such diversified fields as ecological geography, socio-historical geography, applied geography concerned with GIS technic, geography education and so on. Such trend is a reflection of the new era which is characterized by diversity, software, high technology, globalization and others. The sixty years history of the society nay be summarized into the five phases of periodization: (1) establishment and chaos($1945{\~}1959$), (2) reconstruction(1960${\~}$1969), (3)reorganization(1970${\~}$1989), (4) jump and rush($1990{\~}1999$), (5)globalization($2000{\~}\;$).

• Journal of the Korean Institute of Landscape Architecture
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• v.45 no.5
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• pp.97-104
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• 2017

Greenspace enlargement through proper landscape planting is essential to creating a low carbon society. This study analyzed changes in stem diameter growth rates(DGR), ratios of below ground/above ground biomass(B/A), and carbon sequestration by age of major landscape tree species. Landscape trees for study were 11 species and 112 individuals planted in middle region of Korea. The DGR and B/A were analyzed based on data measured through a direct harvesting method including root digging. The carbon sequestration by tree age was estimated applying the derived regression models. The annual DGR at breast height of trees over 30 years averaged 0.72 cm/yr for deciduous species and 0.83 cm/yr for evergreen species. The B/A of the trees over 30 years averaged 0.23 for evergreen species and 0.40 for deciduous species, about 1.7 times higher than evergreen species. The B/A by age in this study did not correspond to the existing result that it decreased as tree ages became older. Of the study tree species, cumulative carbon sequestration over 25 years was greatest with Zelkova serrata(198.3 kg), followed by Prunus yedoensis(121.7 kg), Pinus koraiensis(117.5 kg), and Pinus densiflora (77.4 kg) in that order. The cumulative carbon sequestration by Z. serrata offset about 5% of carbon emissions per capita from household electricity use for the same period. The growth rates and carbon sequestration for landscape trees were much greater than those for forest trees even for the same species. Based on these results, landscape planting and management strategies were explored to improve carbon sequestration, including tree species selection, planting density, and growth ground improvement. This study breaks new ground in discovering changes in growth and carbon sequestration by age of landscape trees and is expected to be useful in establishing urban greenspaces towards a low carbon society.