• Journal of applied mathematics & informatics
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• v.27 no.3_4
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• pp.725-736
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• 2009

We define a (${\tau}_i$, ${\tau}_j$)-fuzzy strongly preopen set on a fuzzy bitopological space and characterize a fuzzy pairwise strong precontinuous mapping and a fuzzy pairwise strong preopen mapping(a fuzzy pairwise strong preclosed mapping) on a fuzzy bitopological space.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.352-354
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• 2002

A series of ABA type triblock copolymers of trimethylene carbonate (TMC) and $\varepsilon$-caprolactone($\varepsilon$-CL) with different molar ratio were synthesized using ethylene glycol as initiator and stannous octoate as catalyst by ring-opening bulk polymerization. The characterization of the triblock copolymers was characterized by $^1$H-NMR, $\^$13/C-NMR, FT-IR, GPC and DSC, and compared with random copolymer. (omitted)

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.10b
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• pp.296-297
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• 2005

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1995.10b
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• pp.378-383
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• 1995

Kandil[5] introduced and studied the notion of fuzzy bitopological spaces as a natural generalization of fuzzy topological In [10], Sampath Kumar introduced and studied the concepts of ( i, j)-fuzzy semiopen sets, fuzzy pairwise semicontinuous mappings in the fuzzy bitopological spaces. Also, he defined the concepts of ( i, j)-fuzzy -open sets, ( i, j)-fuzzy preopen sets, fuzzy pairwise -continuous mappings and fuzzy pairwise precontinuous mappings in the fuzzy bitopological spaces and studied some of their basic properties. In this paper, we generalize the concepts of fuzzy -open sets, fuzzy -continous mappings ？ 새 Mashhour, Ghanim and Fata Alla[6] into fuzzy bitopological spaces, We first define the concepts of ( i, j)-fuzzy -open sets and then consider the generalizations of fuzzy pairwise -continuous mappings is obtained Besides many basic results, results related to products and graph of mapping are obtained in the fuzzy bitopological spaces.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.53 no.spc
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• pp.72-77
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• 2008

This study was carried out to determine the response of the rice yield and grain quality by rice leaf folder (RLF, Cnaphalocrocis medinalis G.) and identify the damages caused by different transplanting dates, nitrogen amounts and chlorophyll amounts (SPAD value) of rice leaf. As the damage degree of RLF was getting severer, the ripened grain rate and 1000-grain weight were decreased and due to the increasing of chalky rice rate the rate of head rice was reduced. Therefore, the yield of head rice was decreased by 36% in heavily damaged rice plant. Among the physicochemical characteristics, protein content of rice grain was increased but amylose content was reduced, consequently, the palatability was deteriorated in heavily damaged rice by RLF. The degree of damage of RLF was getting serious as transplanting date was delayed and as the amount of nitrogen was increased. In the relationship between the SPAD value and the damage degree of RLF, as the SPAD value was increased by nitrogen fertilizing, the damage degree was also increased exponential functionally.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.7 no.2
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• pp.41-49
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• 2001

This study was undertaken to find out the effect analysis of conservative treatment in of lumbar intervertebral disc. The data was performed to evaluate the effect of conservative treatment in 50 patients aging from 20 to 67 with lumbar intervertebral disc patients. Changes in low back pain score were evaluated by age, occupation, duration of symptoms, marital status, education period, self assessment. Duration of symptoms in over 7 months was 62.0%. 8.6 scores of complete recovery was changes in low back pain score of self assessment patients. In the multiple regression of risk factors to changes in low back pain score were correlated with age, education period, marital status, duration of symptoms(p<0.05). All patients were assessed by the low back pain protocol which was composed of symptom, clinical sign and activities of daily living scales before and after the treatment. Poor result could be predicted after the nonoperative treatment in the patient groups of changes low back pain score decreased with aging, duration of symptom over 7 months.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.53 no.spc
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• pp.15-18
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• 2008

This study was conducted to analyze the rice yield and grain quality of viviparous germinated seeds caused by long period rainy days. In the yield characteristics, the milled/brown rice rates in two cultivars, Unkwangbyeo and Gopumbyeo were 86.0 and 80.9%, respectively, in viviparous germinated seeds, showing the decreased rates by 3.2 and 6.2%, respectively, as compared to 89.2 and 87.1% in normal seeds. Rice yield in Unkwangbyeo and Gopumbyeo also decreased by 5 and 7%, respectively, in viviparous germinated seeds as compared to normal seeds. Peak viscosity and set back of viviparous germinated seeds were decreased, and the hardness of them was increased compared to normal seeds. Color value (a) of viviparous germinated seeds was 0.90, showing lower value than that (1.65) of normal seeds of Gopumbyeo. The results demonstrated that as the viviparous germinating rate was increased, the grain quality was deteriorated.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.53 no.spc
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• pp.44-46
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• 2008

This study was carried out to observe the quality of commercial brand rices collected from Gyeongbuk Province, Korea in 2006-2007. Rice quality was analyzed as a mixed ratio with other varieties by DNA analysis, physicochemical and appearance characteristics among 26 commercial brand rices. In protein contents of rice grain, 12 brand rices were lower than 6.5%, 6 brand rices were ranged 6.6-7.0%, and others were higher than 7%. In head rice rates, 2 brand rices were higher than 95%, 4 brand rices were ranged 90-94%, and other brand rices were lower than 90%. In distribution of the mixed ratio with other varieties, 12 commercial brand rices were ranged 1- 10%, 9 commercial brand rices were ranged 11-20%, and 5 brand rices were lower than 20% of mixed ratio.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.53 no.spc
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• pp.19-23
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• 2008

This study was conducted to compare the yield and grain quality as affected by rice seedling age in late transplanted rice. The rice yield was remarkably reduced in 10 day-old seedlings but those of older seedlings over than 30-day were not different. In the rice quality, as the rice seedling age younger the rate of greened and damaged rice increased, suggesting decreasing of the head rice rate. Among the physicochemical characteristics, protein content of rice grain was increased in 10 day-old seedling but amylose content was not different, consequently, the palatability was improved in older seedlings over than 30-day. From these results, it is more beneficial to machine transplant the older seedlings over than 30-day for delayed transplanting.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.51 no.spc1
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• pp.67-72
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• 2006

This experiment was carried out to identify rice varieties suitable for growing under low N-fertilization levels. Eighteen rice varieties were grown at 5.5 kg and 11 kg/10a nitrogen levels in 2004-2005 in Taegu, Korea. Several varieties like Ilmibyeo, Nampyeongbyeo, Sindongjinbyeo, Dongjin 1 and Donganbyeo yielded more than 470 kg/10a. Low N-fertilization level (5.5 kg/10a) decreased yields of Junambyeo and Donganbyeo by more than 10%. However, the decrease in yield was not significant in Surabyeo and Hwayeongbyeo compared with the 11 kg/10a N-fertilizer treatment. Improved grain quality, chemical properties and palatability was noted in some rice varieties. In terms of rice yield and grain quality, Donganbyeo, Ilmibyeo, Ilpumbyeo, Dongjin 1, Saechoocheongbyeo and Saegyehwabyeo were selected as premising rice varieties for growing under low N-fertilization levels.