• Journal of Korean Library and Information Science Society
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• v.42 no.3
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• pp.5-24
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• 2011

The purpose of this study aims to provide possible suggestions for the improvement KDC 5th ed. as a system. After analyzing and evaluating time & space devices of KDC 5th ed.(including DDC 22th ed. and NDC 9th ed.). such as main schedules, common auxiliary tables, internal tables and notes, suggestions for the improvement were proposed. If above suggestions are adopted, effective literature classification scheme which is suited to domestic circumstances will be certainly prepared.

• Journal of Korean Library and Information Science Society
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• v.40 no.2
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• pp.5-26
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• 2009

The purpose of this study aims to provide possible suggestions for the improvement KDC 5th ed. as a system. After analyzing and evaluating various devices of KDC 5th ed. such as schedules, common auxiliary tables, internal tables(omitted), notes, relative index, precedence order(omitted), alternatives, manual(omitted) and relocated table(omitted), suggestions for the improvement were proposed. If above suggestions are adopted, effective literature classification scheme which is suited to domestic circumstances will be certainly prepared.

• Journal of Nutrition and Health
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• v.37 no.1
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• pp.5-14
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• 2004

The purpose of this study was to investigate the effect of dietary sea-tangle extracts on blood glucose levels, serum lipid levels, thiobarbituric acid reactive substance (TBARS) and glutathione enzymes in diabetic rats treated with streptozotocin (STZ) Four groups of rats (Sprague-Dawley male rats, 180 - 200g) were consisted of normal rats fed control diet (C), diabetic rats fed control diet (CD), normal rats fed sea-tangl extracts diet (E), and diabetic rats fed sea-tangle extracts diet (ED). Diabetes was induced by single injection of streptozotocin (60 mg/kg B.W.). After 7 weeks, rats were sacrificed, serum glucose, serum total cholesterol, triglyceride levels and glutathione enzymes were measured. Urine was significantly higher in CD and ED groups than those of others (p < 0.05). Levels of amylase, calcium, uric acid, hemoglobin, cholesterol and low density lipoprotein (LDL)-cholesterol were different among four groups. But high density cholesterol (HDL)-cholesterol of ED group was significantly higher (p < 0.05) than other groups (C and E group) And the weekly change of serum glucose was decreased in the 3th,4th and 5th weeks. But serum triglyceride (TG) of diabetic rats fed sea-tangle extracts diet (ED) was lower than diabetic rats fed control diet (CD). Activity of hepatic microsomal G6Pase was significantly increased CD and ED groups higher than C and E group, but kidney was decreased ED group. Hepateic glutathione S-transferase (GST) of CD and ED group were significantly lower than C and E group (p<0.05), glutathione peroxidase (GPX) of E and ED group were significantly higher than C and CD group (p<0.05), glutathione reductase (GR) activities of ED group was significantly lower than other groups, malondialdehyde (MDA) of ED was lower than E and CD group, but kidney was increased significant in ED group compared to liver. These results suggested that dietary sea-tangle extracts reduce .hepatic disorders such as oxidant than kidney. In conclusion, dietary sea-tangle extracts groups reduced blood TG and hepatic MDA levels in STZ-induced diabetic rats.

• Journal of Korean Library and Information Science Society
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• v.34 no.1
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• pp.287-311
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• 2003

This comparative study is on divisions of religion, subdivisions of religion, standard subdivisions, and divisions of Christianity in the KDC 4th ed., DDC 21h ed., & LCC 3th ed. It selects the subjects as \circled1 Christianity theology, \circled2 Jesus Christ, \circled3 The Bible, \circled4 Devotional literature & life, \circled5 Evangelism, education; pastoral theology, \circled6 Ecclesiastical theology, \circled7 Worship, sacrament, \circled8 Denominations which are the divisions of Christianity in KDC 4th ed. It wants to be devoted fer the development of the schedules for Christianity.

• Journal of Korean Library and Information Science Society
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• v.43 no.4
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• pp.5-22
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• 2012

The purpose of this study aims to provide possible suggestions for the improvement of KDC 5th ed. in Jurisprudence Field. The research methods are as follows. First, to analyze academic fields in Jurisprudence, the contents of Jurisprudence introductory books are investigated. Second, to find out the problem of KDC Jurisprudence field, comparative analysis is done on the three classification schemes - KDC, DDC and NDC. Third, curriculum of domestic law schools are reflected. If above suggestions are adopted, effective literature classification scheme which is suited to domestic circumstances will be certainly prepared.

• Journal of Korean Library and Information Science Society
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• v.27
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• pp.369-389
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• 1997

KDC(Korea Decimal Classification), which is representative literature classification scheme in Korea, was revised and published in 1996. The purpose of this paper is to suggest a reform measure after detecting out issues and problems associated with the KDC 4th ed. through the result of lecture. The outline of suggestions are as follows : (1) There are not all items of auxiliary tables in relative index. (2) Auxiliary table 2 (Geographic Areas) is not detailed. (3) The manual for the shake of efficient usage is nonexistent and notes are poor in content. (4) Sufficient minimax and alternatives must be setted up for efficiency usage. (5) Some parts of the main schedule are disorder and not logical.

• The International Journal of Costume Culture
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• v.7 no.1
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• pp.40-47
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• 2004

The purpose of this research was to examine the degradation rate of alizarin in accelerated degradation conditions using the GC-MS quantitative analysis. Alizarin dye solution (2.5 x 10/sup -3/ M conc.) were kept in 150℃ oven for total of 7 days and the degradation rate was examined each day. 2.5 × 10/sup -4/M conc. alizarin dye solution was mixed with H₂O₂ according to [H₂O₂]/[dye] ratio 40 and were kept under 365㎚ UV for 2 hours, analyzed after 0, 30, 60, 90, 120min using the GC-MS. Gas chromatogram showed alizarin peak at 9.96 - 10.13 min. retention time range and residual peaks in the wide range from 9.6 to 11.1 min. Oven degradation exhibited an initial decrease in the amount of alizarin, which was followed by increasing amount in 4/sup th/ day. The decrease in the alizarin was significantly shown by the 7/sup th/ day. Same pattern was also observed in the H₂O₂/UV/O₂ degradation samples and was verified ed by the UV-VIS spectra. The differences in the amount of alizarin between 1/sup st/ day and 4/sup th/ day samples, 4/sup th/ day and 7/sup th/ day samples, and Control and 7/sup th/ day samples of the oven degradation were significant at alpha .20.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1997.10a
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• pp.277-281
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• 1997

Reliab~l~ty englneerlng IS regarded as the major and important roll for all Industry And advanced nianufactur~ng systems w~th h~gh speed and lntell~gent ha\\ulcorner been dcvelop~ng for betterment of lnachln~ng db~l~ty In th~study, Me have rystem~~ed c\, ~luat~on c r f relidb~litl for nldchlntry system We proposed the rel~ab~l~ty asvxmcnt and dci~yned and manufactured r~ildb~llty tcst-bed to eualuate rcl~dbil~ty In ddd~t~on we acquired relldb~l~ty data uslng test-bed sydem and mde database to handle relrab~l~t) data And also he not only use rel~ab~l~ty data by andlyzlng rel~ab~l~ty, but also apply design revlew method usmg analycing crltlcal unlt5 of machlnery system From th~s stud), he u ~ l l expect to gu~de md Increase the rel~ab~l~t) englneerlng in devclop~ng and procerslng phase of h~gh qualrty product

• Education of Primary School Mathematics
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• v.11 no.1
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• pp.21-38
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• 2008

This study is for elementary school student's spatial ability improvement. We have to know their correct spatial ability for teaching it more effectively. And then we can organize about spatial ability one of schoolbook systematically and step by step. Therefore this study did survey elementary school student's spatial ability by grades and school score using newly developed spatial ability survey test. According to result, First, elementary school students spatial ability be developed gradually more 5th, 6th grades than 3th, 4th grades. Second, it was researched that high score student's spatial ability is better than score student lower student's. But the result was influenced by school's curriculum. The score of contents in school's curriculum higher than it's not. Synthetically, the suggestion is what the curriculum is changed. It need to input the contents of spatial abilities and more detailed study.

• Journal of Conservation Science
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• v.34 no.6
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• pp.481-492
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• 2018

We conducted TL/OSL dating for the earthenware kilns in the Bongsan-ri archaeological site, Osong, which was occupied from the late nineteenth to the late twentieth century. With the SAR-TL/OSL method, paleodose was determined from the equivalent dose during the burial period($ED_{burial}$), the background dose($ED_{BG}$), the fading correction factor(f), and the overestimation correction factor(C). The annual dose rates and their provenance were evaluated from the measurement of natural radionuclides $^{238}U$, $^{232}Th$, and $^{40}K$. Because the comprehensive absolute age was provided by combining the resulting TL/OSL and radiocarbon data, we concluded that, for the absolute chronology of a modern archaeological site, TL/OSL dating and radiocarbon dating must be carried out together and summed. The construction and occupation of earthenware kilns in the Bongsan-ri site had changed from stage I (No.5, 6 kilns), to stage II (No.1, 2, 3 kilns), to stage III (No.4) in chronological order. When Bayesian statistics were applied, we found that the absolute ages of occupation for stages I, II, and III correspond to AD $1910{\pm}23$, AD $1970{\pm}10$, and AD $1987{\pm}4$. These results were in good agreement with the archaeological context or chronology.