58 research outputs found

    ์ƒ์œก์ง„์ „์ด ์ผ€์ผ์˜ ์ˆ˜๊ด‘ ๋ฐ ์ƒํ™œ์„ฑ ํ™”ํ•ฉ๋ฌผ์˜ ์œ„์น˜์  ๋ถ„ํฌ์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ

    Get PDF
    ํ•™์œ„๋…ผ๋ฌธ (์„์‚ฌ) -- ์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› : ๋†์—…์ƒ๋ช…๊ณผํ•™๋Œ€ํ•™ ์‹๋ฌผ์ƒ์‚ฐ๊ณผํ•™๋ถ€(์›์˜ˆ๊ณผํ•™์ „๊ณต), 2021. 2. ์†์ •์ต .UV-B (280โ€“315 nm) radiation has been used as an effective tool to improve bioactive compound contents in controlled environments, such as plant factories. However, plant structure changes with growth progress induce different positional distributions of UV-B radiation interception, which cause difficulty in accurately evaluating the effects of UV-B on biosynthesis of bioactive compounds. The objective of this study was to quantitatively analyze the positional distributions of UV-B radiation interception and bioactive compound contents of kales (Brassica oleracea L. var. acephala) with growth progress and their relationships. Plants were grown in a plant factory at a photosynthetic photon flux density of 200 ฮผmol mโ€“2 sโ€“1 with a photoperiod of 16 h and were harvested at 14 and 28 days after transplanting (DATs). The plants were exposed to two different doses of UV-B radiation (e.g., 1.3 W mโ€“2 for 6 h or 12 h per day) for 1, 2, and 3 days before harvest. UV-B light interception, total phenolic compound (TPC), and total flavonoid compound (TFC) at the upper, middle and lower leaves of the plants were evaluated. Spatial UV-B radiation interception was analyzed by using 3D plant models and ray-tracing simulations. UV-B levels did not affect plant growth, including leaf area, fresh leaf weight, or dry weight. As growth progressed, the UV-B radiation interception amounts in the upper leaves were 34.1% and 88.8% higher than those for the middle and lower leaves, respectively. The bioactive compound contents in the upper leaves were 29.3โ€“36.8% and 70.1โ€“82.6% higher than those in the middle and lower leaves, respectively. The increase rates of TFC relative to the cumulative absorbed UV amounts were highest for the upper leaves of the 28 DAT plants, while those for TPC were highest in the middle leaves of the 14 DAT plants. Despite the same UV-B levels, the UV-B radiation interception and UV-B susceptibility in the plants varied with leaf position and growth stage, which induced the different biosynthesis of TFC and TPC. This attempt to interpret UV-B radiation interception will contribute to estimating and quantifying the production of bioactive compounds.UV-B ๊ด‘ ์—๋„ˆ์ง€๋Š” ์‹๋ฌผ์˜ ์ƒํ™œ์„ฑ ํ™”ํ•ฉ๋ฌผ์„ ํšจ์œจ์ ์œผ๋กœ ์ถ•์ ์‹œํ‚ค๊ธฐ ์œ„ํ•œ ์ˆ˜๋‹จ์œผ๋กœ์จ ์‹๋ฌผ๊ณต์žฅ์—์„œ ํ”ํžˆ ์‚ฌ์šฉ๋œ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ƒ์œก์ง„์ „์— ๋”ฐ๋ฅธ ์‹๋ฌผ ๊ตฌ์กฐ์˜ ๋ณ€ํ™”๋Š” ์—ฝ ์œ„์น˜๋ณ„ ์ˆ˜๊ด‘ ๋ถ„ํฌ๋ฅผ ๋‹ค๋ฅด๊ฒŒ ํ•˜๋ฏ€๋กœ UV-B ๊ด‘์— ์˜ํ•œ ์ƒํ™œ์„ฑ ํ™”ํ•ฉ๋ฌผ์˜ ์ƒ์„ฑ ํšจ๊ณผ๋ฅผ ์ •ํ™•ํžˆ ํ‰๊ฐ€ํ•˜๊ธฐ ์–ด๋ ต๋‹ค. ๋ณธ ์—ฐ๊ตฌ์˜ ๋ชฉ์ ์€ ์ผ€์ผ์˜ ์ƒ์œก ์ง„์ „์ด UV-B ์ˆ˜๊ด‘, ์ƒํ™œ์„ฑ ํ™”ํ•ฉ๋ฌผ์˜ ์œ„์น˜์  ๋ถ„ํฌ์™€ ๋‘ ๊ด€๊ณ„์— ์ฃผ๋Š” ์˜ํ–ฅ์„ ์ •๋Ÿ‰์ ์œผ๋กœ ๋ถ„์„ํ•˜๋Š” ๊ฒƒ์ด๋‹ค. ์ผ€์ผ์€ ๊ด‘ํ•ฉ์„ฑ ๊ด‘๋Ÿ‰์ž์†๋ฐ€๋„ 200ฮผmolยทm-2ยทs-1, ๊ด‘์ฃผ๊ธฐ 16์‹œ๊ฐ„์ธ ์‹๋ฌผ๊ณต์žฅ์—์„œ ์ž๋ž๊ณ , ์ •์‹ ํ›„ 14์ผ๊ณผ ์ •์‹ ํ›„28์ผ์— ์ˆ˜ํ™•๋˜์—ˆ๋‹ค. ์ผ€์ผ์€ ์ˆ˜ํ™• ์ „ 1์ผ, 2์ผ, 3์ผ ๋™์•ˆ ๋‘ ๊ฐ€์ง€ ์ˆ˜์ค€์˜ UV-B (1.3 W m-2, ํ•˜๋ฃจ 6์‹œ๊ฐ„ ํ˜น์€ 12์‹œ๊ฐ„)๋กœ ์กฐ์‚ฌ๋˜์—ˆ๋‹ค. ๊ฐœ์ฒด ๋‚ด์˜ ์ƒ, ์ค‘, ํ•˜๋‹จ๋ถ€ ์—ฝ์— ๋Œ€ํ•œUV-B ์ˆ˜๊ด‘, ์ด ํ”Œ๋ผ๋ณด๋…ธ์ด๋“œ ํ•จ๋Ÿ‰(TFC), ์ด ํŽ˜๋†€ํ•จ๋Ÿ‰(TPC)์ด ์ธก์ •๋˜์—ˆ๋‹ค. ๊ณต๊ฐ„์ UV-B์ˆ˜๊ด‘์€ 3 ์ฐจ์› ์‹๋ฌผ๋ชจ๋ธ๊ณผ ๊ด‘ ์ถ”์  ์‹œ๋ฎฌ๋ ˆ์ด์…˜์„ ํ†ตํ•ด ๋ถ„์„๋˜์—ˆ๋‹ค. ๋ณธ ์—ฐ๊ตฌ์˜ UV-B ์ˆ˜์ค€์€ ์—ฝ๋ฉด์ , ์žŽ์˜ ์ƒ์ฒด์ค‘๊ณผ ๊ฑด๋ฌผ์ค‘์„ ํฌํ•จํ•œ ์ƒ์œก์— ์˜ํ–ฅ์„ ์ฃผ์ง€ ์•Š์•˜๋‹ค. ์ƒ์œก์ด ์ง„์ „๋˜๋ฉด์„œ, ์ƒ๋‹จ๋ถ€ ์—ฝ์˜ ์ˆ˜๊ด‘์€ ์ค‘๋‹จ๋ถ€ ์—ฝ๊ณผ ํ•˜๋‹จ๋ถ€ ์—ฝ์— ๋น„ํ•ด ๊ฐ๊ฐ 34.1%, 88.8% ๋†’์•˜๋‹ค. ์ƒ๋‹จ๋ถ€ ์—ฝ์˜ ์ƒํ™œ์„ฑ ํ™”ํ•ฉ๋ฌผ์€ ์ค‘๋‹จ๋ถ€ ์—ฝ๊ณผ ํ•˜๋‹จ๋ถ€ ์—ฝ์— ๋น„ํ•ด ๊ฐ๊ฐ 29.3โ€“36.8%, 70.1โ€“82.6% ๋†’์•˜๋‹ค. ์ค‘๋‹จ๋ถ€UV-B ๋ˆ„์  ํก์ˆ˜๋œ UV-B ๊ด‘๋Ÿ‰์— ๋Œ€ํ•œ TFC์˜ ์ฆ๊ฐ€์œจ์€ ์ƒ๋‹จ๋ถ€์—์„œ, TPC์˜ ์ฆ๊ฐ€์œจ์€ ์ค‘๋‹จ๋ถ€์—์„œ ๊ฐ€์žฅ ๋†’์•˜๋‹ค. ๋™์ผํ•œ UV-B๊ด‘ ์ˆ˜์ค€์—์„œ๋„ ์ผ€์ผ์˜ UV-B์ˆ˜๊ด‘๊ณผ ๊ฐ์ˆ˜์„ฑ์€ ์—ฝ ์œ„์น˜์™€ ์ƒ์œก๋‹จ๊ณ„์— ๋”ฐ๋ผ ์ฐจ์ด๊ฐ€ ์žˆ์—ˆ๊ณ  ์ด๋Š” ์ƒํ™œ์„ฑ ํ™”ํ•ฉ๋ฌผ์˜ ์ƒํ•ฉ์„ฑ์— ์˜ํ–ฅ์„ ์ฃผ์—ˆ๋‹ค. ๋ณธ ๋ฐฉ๋ฒ•์€ ์ถ”ํ›„ UV-B ๊ด‘์„ ์‚ฌ์šฉํ•œ ์‹๋ฌผ๊ณต์žฅ ๋‚ด ์ด์ฐจ๋Œ€์‚ฌ์‚ฐ๋ฌผ ์ƒ์‚ฐ๋Ÿ‰ ์ถ”์ • ๋ฐ ์ •๋Ÿ‰ํ™”์— ๊ธฐ์—ฌํ•  ๊ฒƒ์œผ๋กœ ๊ธฐ๋Œ€๋œ๋‹ค.ABSTRACT i CONTENTS iii LIST OF TABLES iv LIST OF FIGURES v INTRODUCTION 1 LITERATURE REVIEW 4 MATERIALS AND METHODS 7 RESULTS 15 DISCUSSION 26 CONCLUSION 33 LITERATURE CITED 34 ABSTRACT IN KOREAN 47Maste

    ๋ฐฐ์šฐ์ž์˜ ๊ฒฝ์ œํ™œ๋™์ด ์กฐ์ง๋ชฐ์ž…์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์— ๊ด€ํ•œ ์—ฐ๊ตฌ

    Get PDF
    ํ•™์œ„๋…ผ๋ฌธ (์„์‚ฌ)-- ์„œ์šธ๋Œ€ํ•™๊ต ํ–‰์ •๋Œ€ํ•™์› : ๊ณต๊ธฐ์—…์ •์ฑ…ํ•™๊ณผ, 2013. 8. ๊ถŒ์ผ์›….์—ฌ์„ฑ์˜ ์‚ฌํšŒ์ง„์ถœ์ด ๋Š˜์–ด๋‚จ์— ๋”ฐ๋ผ ์ง์žฅ์—์„œ์˜ ๋งž๋ฒŒ์ด ๋ถ€๋ถ€๋Š” ์ ์ฐจ ๋Š˜์–ด๋‚˜๋Š” ์ถ”์„ธ์ด๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ด๋กœ ์ธํ•ด ์—ฌ์„ฑ์€ ์ผ๊ณผ ๊ฐ€์ • ์–‘๋ฆฝ์˜ ์–ด๋ ค์›€์— ๋”ฐ๋ฅธ ์ด์ค‘๊ณ ๋ฅผ ๊ฒช์„ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ์ด๋Ÿฌํ•œ ๋ฌธ์ œ๊ฐ€ ์กฐ์ง๊นŒ์ง€ ํ™•๋Œ€๋˜์–ด ์—ฌ์„ฑ์˜ ๊ฒฝ๋ ฅ๋‹จ์ ˆ, ์ด์ง๋ฅ , ๊ฒฐ๊ทผ์œจ์„ ์ฆ๊ฐ€์‹œํ‚ค๋Š” ๊ฒฐ๊ณผ๋ฅผ ๋‚ณ๊ฒŒ ๋œ๋‹ค. ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ ๋งž๋ฒŒ์ด ๋‚จ์„ฑ๋„ ์™ธ๋ฒŒ์ด ๋‚จ์„ฑ์— ๋น„ํ•ด ๊ฐ€์‚ฌ๋…ธ๋™, ์ž๋…€์–‘์œก ๋“ฑ์— ๋”ฐ๋ฅธ ํ”ผ๋กœ๋„๊ฐ€ ์‹ฌํ™”๋˜๊ณ  ์žˆ๋‹ค. ๊ธ‰์†ํ•˜๊ฒŒ ๋ณ€ํ™”ํ•˜๋Š” ํ™˜๊ฒฝ ์†์—์„œ ์กฐ์ง์€ ํšจ์œจ์„ฑ๊ณผ ์ƒ์‚ฐ์„ฑ์„ ๋†’์ด๊ธฐ ์œ„ํ•ด์„œ ์ˆ™๋ จ๋œ ์ธ๋ ฅํ™•๋ณด์™€ ๊ด€๋ฆฌ๊ฐ€ ์ค‘์š”ํ•˜๋‹ค๊ณ  ํ•  ๊ฒƒ์ด๋‹ค. ์•ž์„œ ์‚ดํŽด๋ณธ ์—ฌ๋Ÿฌ ์—ฐ๊ตฌ๋ฅผ ํ†ตํ•ด์„œ ์กฐ์ง์ด ๊ฐ€์ •์˜ ๋ฌธ์ œ๋ฅผ ๋‹จ์ง€ ๊ฐœ์ธ์˜ ๋ฌธ์ œ๋กœ ๊ตญํ•œํ•  ๊ฒฝ์šฐ ์กฐ์ง ์ธก๋ฉด์—์„œ๋„ ๊ถ๊ทน์ ์œผ๋กœ๋Š” ์†์‹ค์„ ์ดˆ๋ž˜ํ•˜๊ฒŒ ๋˜๋ฉฐ, ์ด๋ฅผ ๋ฐฉ์ง€ํ•˜๊ธฐ์œ„ํ•ด ๊ฐ€์ •๊ณผ ์ง์žฅ์„ ์กฐํ™”์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ์„œ๋น„์Šค์™€ ์ •์ฑ…์„ ํ†ตํ•ด ์ œ๋„์ ์œผ๋กœ ๋’ท๋ฐ›์นจํ•ด์•ผ ํ•œ๋‹ค๊ณ  ๋ฐํžˆ๊ณ  ์žˆ๋‹ค. ํŠนํžˆ, ๋งž๋ฒŒ์ด ๊ตฌ์„ฑ์›์˜ ์ ์œ ์œจ์ด ์ ์ฐจ ๋†’์•„์ง์— ๋”ฐ๋ผ ์ด๋“ค์ด ์กฐ์ง์˜ ์ƒ์‚ฐ์„ฑ์„ ๋†’์ผ ์ˆ˜ ์žˆ๋„๋ก ํ•˜๋Š” ๊ฒƒ์ด ์ค‘์š”ํ•˜๋‹ค๊ณ  ํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ์กฐ์ง์›์˜ ํƒœ๋„์™€ ํ–‰๋™ ์—ฐ๊ตฌ์— ์žˆ์–ด์„œ ์ค‘์š”ํ•œ ๊ฐœ๋…์œผ๋กœ ์ž๋ฆฌ์žก์€ ์กฐ์ง๋ชฐ์ž…๋„์— ์ค‘์ ์„ ๋‘์–ด ์‚ดํŽด๋ณด์•˜๋‹ค. ํŠนํžˆ ์กฐ์ง๋ชฐ์ž…์ด ์กฐ์ง ๋‚ด์ ์ธ ์š”์ธ๋ฟ ๋งŒ ์•„๋‹ˆ๋ผ ์กฐ์ง ์™ธ์ ์ธ ์š”์ธ์— ์˜ํ•ด์„œ๋„ ์˜ํ–ฅ์„ ๋ฐ›๋Š”๋‹ค๋Š” ์ ์— ์ฐฉ์•ˆํ•˜์—ฌ ๋ฐฐ์šฐ์ž์˜ ๊ฒฝ์ œํ™œ๋™ ์—ฌ๋ถ€์™€ ๊ทธ ์™ธ ๋‹ค์–‘ํ•œ ์กฐ์ ˆ๋ณ€์ˆ˜, ์ธ๊ตฌํ†ต๊ณ„ํ•™์  ๋ณ€์ˆ˜ ๋“ฑ์„ ๊ฐ™์ด ์‚ดํŽด๋ณด์•˜๋‹ค. ์ด๋ฅผ ํ†ตํ•ด ์กฐ์ง ๊ตฌ์„ฑ์›๋“ค์˜ ๋ฌธ์ œ์ ์„ ๊ฐœ์„ ํ•˜๊ณ  ์กฐ์ง๋ชฐ์ž…์„ ์ด‰์ง„ํ•  ์ˆ˜ ์žˆ๋Š” ๋ฐฉ๋ฒ•์„ ์ฐพ๊ณ ์ž ํ•˜์˜€๋‹ค. ์ด๋Ÿฌํ•œ ๋ชฉ์ ๋‹ฌ์„ฑ์„ ์œ„ํ•˜์—ฌ ๋ณธ ์—ฐ๊ตฌ๋Š” ์กฐ์ง๋ชฐ์ž…์— ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š” ๋‹ค์–‘ํ•œ ๋ณ€์ธ ์ค‘์—์„œ ๋ฐฐ์šฐ์ž์˜ ๊ฒฝ์ œํ™œ๋™ ์—ฌ๋ถ€๋ฅผ ์„ ํ–‰๋ณ€์ˆ˜๋กœ, ์ง๊ธ‰, ์—…๋ฌด์œ ํ˜•, ์œก์•„ํ˜•ํƒœ, ๊ธ‰์—ฌ, ์ฃผ๋ง๋ถ€๋ถ€ ์—ฌ๋ถ€ ๋“ฑ์„ ์กฐ์ง๋ชฐ์ž…์˜ ์กฐ์ ˆ๋ณ€์ˆ˜๋กœ ์„ค์ •ํ•˜์˜€๋‹ค. ์‹ค์ฆ๋ถ„์„์„ ์œ„ํ•ด D๊ณต์‚ฌ์— ์žฌ์ง ์ค‘์ธ ๊ธฐํ˜ผ์ง์›๋“ค์„ ๋Œ€์ƒ์œผ๋กœ ํ•˜์—ฌ ์„ค๋ฌธ์กฐ์‚ฌ๋ฅผ ์‹ค์‹œํ•˜์˜€๊ณ , 358๋ช…์˜ ์œ ํšจํ•œ ๋ฐ์ดํ„ฐ๋ฅผ ์–ป์„ ์ˆ˜ ์žˆ์—ˆ๋‹ค. ์„ค๋ฌธ์€ ์กฐ์ง๋ชฐ์ž… ์ธก์ •ํ•˜๊ธฐ ์œ„ํ•œ 16๊ฐœ ๋ฌธํ•ญ, ๋…๋ฆฝ๋ณ€์ˆ˜ ์ธก์ •์„ ์œ„ํ•œ 2๋ฌธํ•ญ, ์กฐ์ ˆ๋ณ€์ˆ˜ 12๋ฌธํ•ญ, ํ†ต์ œ๋ณ€์ˆ˜ 4๋ฌธํ•ญ ๋“ฑ ์ด 33๊ฐœ ๋ฌธํ•ญ์œผ๋กœ ๊ตฌ์„ฑ๋˜์—ˆ๋‹ค. ๋ณธ ์—ฐ๊ตฌ๋Š” ๋ถ„์„์„ ์œ„ํ•ด SPSS 19.0 Package๋ฅผ ์ด์šฉํ•˜์˜€๊ณ , ๋นˆ๋„๋ถ„์„, ์š”์ธ๋ถ„์„, ์‹ ๋ขฐ๋„๋ถ„์„, t-test์™€ ์ผ์›๋ฐฐ์น˜๋ถ„์‚ฐ๋ถ„์„(one way ANOVA), ํšŒ๊ท€๋ถ„์„ ๋“ฑ์„ ์‹ค์‹œํ•˜์˜€๋‹ค. ์„ค๋ฌธ์„ ํ†ตํ•œ ๋ถ„์„ ๊ฒฐ๊ณผ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์š”์•ฝํ•  ์ˆ˜ ์žˆ๋‹ค. ์ฒซ์งธ, ์ธ๊ตฌํ†ต๊ณ„ํ•™์  ํŠน์„ฑ์—์„œ๋Š” ๋‚จ์„ฑ์ด ์—ฌ์„ฑ๋ณด๋‹ค ์ •์„œ๋ชฐ์ž…, ๊ทผ์†๋ชฐ์ž… ๋ชจ๋‘์—์„œ ๋ชฐ์ž…๋„๊ฐ€ ๋†’์•˜์œผ๋‚˜ ๊ทธ ์ฐจ์ด๋Š” ๊ทผ์†Œํ•˜์˜€๋‹ค. ๋˜ํ•œ ์ง๊ธ‰์ด ๋†’์„์ˆ˜๋ก ์ •์„œ๋ชฐ์ž…์ด ๋†’์•˜์œผ๋ฉฐ, ๋‚˜์ด๊ฐ€ ๋งŽ๊ณ  ์žฌ์ง๊ธฐ๊ฐ„์ด ์˜ค๋ž˜๋ ์ˆ˜๋ก ๊ทผ์†๋ชฐ์ž…์ด ๋†’์€ ๊ฒฝํ–ฅ์„ ๋ณด์˜€๋‹ค. ์ด๋Š” ์ง๊ธ‰์ด ๋†’์„์ˆ˜๋ก ์ •์„œ๋ชฐ์ž…์ด ๋†’๋‹ค๋Š” ์„ ํ–‰์—ฐ๊ตฌ์™€ ์ผ์น˜ํ•˜์˜€๊ณ , ๊ทผ์†๋ชฐ์ž… ์—ญ์‹œ ๊ฐ€์žฅ ๊ฐ•๋ ฅํ•œ ์˜ˆ์ธก์น˜๋Š” ์กฐ์ง ๋‚ด์—์„œ์˜ ๊ทผ์†๋…„์ˆ˜์™€ ์—ฐ๋ น์ด๋ผ๊ณ  ๋ฐํžŒ ์„ ํ–‰์—ฐ๊ตฌ ๊ฒฐ๊ณผ์™€ ์ผ์น˜ํ•˜์˜€๋‹ค. ๋‘˜์งธ, ๋ฐฐ์šฐ์ž์˜ ๊ฒฝ์ œํ™œ๋™ ์—ฌ๋ถ€๊ฐ€ ์กฐ์ง๋ชฐ์ž…์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์€ ๋งž๋ฒŒ์ด(๋‚จ), ์™ธ๋ฒŒ์ด(๋‚จ)์˜ ๊ฒฝ์šฐ ์ •์„œ๋ชฐ์ž…์— ์œ ์˜ํ•œ ์ •(+)์˜ ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ์…‹์งธ, ์กฐ์ ˆํšจ๊ณผ ๋ถ„์„ ๊ฒฐ๊ณผ๋Š” ์—ฐ๋ น ๋ฐ ๊ฐ€์žฅ ์–ด๋ฆฐ์ž๋…€์˜ ๋‚˜์ด, ์ฃผํƒ์†Œ์œ  ์—ฌ๋ถ€์˜ ๊ฒฝ์šฐ ์™ธ๋ฒŒ์ด(๋‚จ)๊ณผ์˜ ์ƒํ˜ธ์ž‘์šฉ์„ ํ†ตํ•ด ์ •์„œ๋ชฐ์ž…์— ์œ ์˜ํ•œ ์Œ(-)์˜ ์˜ํ–ฅ์„ ๋ฏธ์น˜๊ณ , ๊ธ‰์—ฌ๋Š” ๋งž๋ฒŒ์ด(์—ฌ)์™€์˜ ์ƒํ˜ธ์ž‘์šฉ์„ ํ†ตํ•ด ์ •์„œ๋ชฐ์ž…์— ์œ ์˜ํ•œ ์Œ(-)์˜ ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋˜ํ•œ ์ฃผ๋ง๋ถ€๋ถ€ ์—ฌ๋ถ€๋Š” ๋งž๋ฒŒ์ด(์—ฌ)์™€ ์™ธ๋ฒŒ์ด(๋‚จ)๊ณผ์˜ ์ƒํ˜ธ์ž‘์šฉ์„ ํ†ตํ•ด ์ •์„œ๋ชฐ์ž…์— ์œ ์˜ํ•œ ์Œ(-)์˜ ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š” ๊ฒƒ์œผ๋กœ ํŒŒ์•…๋˜์—ˆ๋‹ค. ๋ณธ ์—ฐ๊ตฌ๋Š” ์ง€๊ธˆ๊นŒ์ง€์˜ ์—ฐ๊ตฌ๊ฐ€ ์กฐ์ง๋ชฐ์ž…์˜ ๊ฒฐ์ •์š”์ธ์„ ์ฃผ๋กœ ์กฐ์ง๋‚ด์ ์ธ ์š”์ธ์œผ๋กœ ๊ตญํ•œํ•˜์—ฌ ์‹ค์‹œํ•˜์˜€๋‹ค๋Š” ์ ์— ์ฐฉ์•ˆํ•˜์—ฌ, ์กฐ์ง์™ธ์ ์ธ ์š”์ธ๋“ค๋„ ํ•จ๊ป˜ ๊ทœ๋ช…ํ•˜์˜€๋‹ค๋Š” ์ ์—์„œ ์ƒˆ๋กœ์šด ์ž๊ทน์ด ๋˜์—ˆ๋‹ค๊ณ  ๋ณธ๋‹ค. ํŠนํžˆ ๊ธฐ์กด์˜ ์กฐ์ง๋ชฐ์ž… ์—ฐ๊ตฌ๊ฐ€ ์ฃผ๋กœ ๋ฏผ๊ฐ„๊ธฐ๊ด€์„ ๋Œ€์ƒ์œผ๋กœ๋งŒ ํ•˜๋Š” ๊ฒฝํ–ฅ์ด ์žˆ์—ˆ์œผ๋‚˜, ์ด๋ฒˆ ์—ฐ๊ตฌ๋Š” ๊ณต๊ธฐ์—…์— ์ ์šฉํ•˜์—ฌ ์ข€ ๋” ํญ๋„“์€ ์—ฐ๊ตฌ๊ฐ€ ๋˜์—ˆ์œผ๋ฆฌ๋ผ ํŒ๋‹จ๋œ๋‹ค.As the society is developing and more women advance into the society, there are a steady growing number of double income couples in work places. This however, brings about ongoing double troubles- juggling with work and household affairs- for career women, and deals heavy blows on the organizations. Furthermore, this leads to career breaks, increasing turnovers, and absences from work for working women. Equally important is men in double income couples, in comparison with their counterparts in single income couples, suffer from aggravated fatigue stemming from household chores and child rearing. Under the rapidly changing circumstances, the organizations should put the highest priority on securing and managing skilled talents in order to enhance efficiency and productivity. The above-mentioned multiple studies show that if the organizations dismiss issues of families simply as matters of individuals, the organizations ultimately suffer from the consequences. To prevent this from happening, systematic supports such as relevant services and policies aimed at harmonizing families with workplaces need to be in place. In particular, since the proportion of double-income families takes up a growing share, their productivity within the organizations needs to be promoted. This study focuses on organizational commitment which establishes itself as an importance concept in studies of attitudes and behaviors of the organizational members. Especially, taking note that organizational commitment is affected by external as well as internal factors, economic activities of the spouses, other various moderating factors and demographics are also observed. This helps identify the ways of addressing the problems faced with organizational members and of stimulating organizational commitment. To achieve this goal, the study sets the spouses economic activity as antecedent factor, while job ranking, type of work, child-rearing, salary, commuter couples as moderating ones. The survey is conducted on the married couples working in D government-owned organization in Korea, and 358 valid data are obtained. The questionnaire has a total of 33 items6 items for measuring organizational commitment, 2 for measuring independent factors, 12 for moderating factors and 4 for controlling factors. The study utilizes SPSS 19.0 Package for making analysis, and frequency analysis, factor analysis, reliability analysis, t-test, one way ANOVA and regression analysis are made. The outcome can be summarized as followings. First, with respect to demographics, men are more committed to organizations than women in terms of affective and continuance commitment, albeit by a narrow margin. Job rankings and affective commitment prove to be positively correlated. With getting older and serving longer in jobs, people tend to show higher continuance commitment. This exactly matches the outcomes of antecedent studies demonstrating people with higher rankings are more affectively committed, and the most compelling predictor for continuance commitment is the length of service years and ages. Second, with respect to impact of spouses economic activity on organizational commitment, two-paycheck couples (males) and single income couples (males) have a significant positive impact on affective commitment. Third, the outcomes of analyzing moderating factors show ages, the ages of the youngest children and house ownership interact with single income couples (males) to have a significant negative impact on affective commitment while salary interacts with two income couples (females)has a significant negative influence on affective commitment. In addition, commuter (or Live Apart Together) couples interacts with double income couples (females) and single income couples (males) to have a significantly negative influence on affective commitment. In determining organizational commitment most of the studies have been conducted on the internal restraints so far. But this study sheds fresh and new light on external factors to ensure a holistic picture of organizational commitment. What is noteworthy is most of the studies of organizational commitment in the past were lopsidedly conducted on the private sector. Therefore, this study hopefully serves as an initial step towards broadening into the public sector.์ œ1์žฅ ์„œ ๋ก  1 ์ œ1์ ˆ ์—ฐ๊ตฌ์˜ ๋ชฉ์  ๋ฐ ํ•„์š”์„ฑ 1 ์ œ2์ ˆ ์—ฐ๊ตฌ๋Œ€์ƒ ๋ฐ ๋ฐฉ๋ฒ• 5 1. ์—ฐ๊ตฌ ๋Œ€์ƒ 5 2. ์—ฐ๊ตฌ๋ฐฉ๋ฒ• 5 ์ œ2์žฅ ์ด๋ก ์  ๋…ผ์˜์™€ ์„ ํ–‰์—ฐ๊ตฌ ๊ฒ€ํ†  6 ์ œ1์ ˆ ๋งž๋ฒŒ์ด ๋ถ€๋ถ€์— ๊ด€ํ•œ ์ด๋ก ์  ๋…ผ์˜ 6 1. ๋งž๋ฒŒ์ด ๊ฐœ๋… ๋ฐ ์œ ํ˜• 6 2. ๋งž๋ฒŒ์ด ๋ถ€๋ถ€์˜ ์ฆ๊ฐ€์š”์ธ 6 3. ๋งž๋ฒŒ์ด ๋ถ€๋ถ€์˜ ์œ ํ˜• 9 4. ๋งž๋ฒŒ์ด ๋ถ€๋ถ€์˜ ์ทจ์—…ํ˜„ํ™ฉ 10 ์ œ2์ ˆ ์กฐ์ง๋ชฐ์ž…์— ๊ด€ํ•œ ์ด๋ก ์  ๋…ผ์˜ 14 1. ์กฐ์ง๋ชฐ์ž…์˜ ๊ฐœ๋… 14 2. ์กฐ์ง๋ชฐ์ž…์˜ ์œ ํ˜• 15 ์ œ3์ ˆ ์„ ํ–‰์—ฐ๊ตฌ์˜ ๊ฒ€ํ†  19 ์ œ3์žฅ ์—ฐ๊ตฌ๋ชจํ˜•์˜ ์„ค๊ณ„ 21 ์ œ1์ ˆ ์—ฐ๊ตฌ ๋ถ„์„ํ‹€ 21 ์ œ2์ ˆ ์—ฐ๊ตฌ๊ฐ€์„ค์˜ ์„ค์ • 23 1. ๋ฐฐ์šฐ์ž์˜ ๊ฒฝ์ œํ™œ๋™ ์—ฌ๋ถ€์™€ ์กฐ์ง๋ชฐ์ž… 23 2. ์กฐ์ ˆ๋ณ€์ˆ˜์— ์˜ํ•œ ์กฐ์ง๋ชฐ์ž… 24 ์ œ3์ ˆ ์„ค๋ฌธ๊ตฌ์„ฑ ๋ฐ ๋ถ„์„๋ฐฉ๋ฒ• 25 1. ์„ค๋ฌธ์˜ ๊ตฌ์„ฑ 25 2. ์ž๋ฃŒ์ˆ˜์ง‘ 27 3. ๋ถ„์„๋ฐฉ๋ฒ• 28 ์ œ4์žฅ ์—ฐ๊ตฌ๊ฒฐ๊ณผ 29 ์ œ1์ ˆ ์—ฐ๊ตฌ๋Œ€์ƒ์ž์˜ ์ผ๋ฐ˜์  ํŠน์„ฑ 29 ์ œ2์ ˆ ์ธก์ •๋„๊ตฌ์˜ ํƒ€๋‹น์„ฑ ๋ฐ ์‹ ๋ขฐ์„ฑ ๋ถ„์„ 31 1. ํƒ€๋‹น์„ฑ ๋ถ„์„ 31 2. ์‹ ๋ขฐ๋„ ๋ถ„์„ 34 3. ์ธ๊ตฌํ†ต๊ณ„ํ•™์  ํŠน์„ฑ์— ๋”ฐ๋ฅธ ์กฐ์ง๋ชฐ์ž… ์ฐจ์ด 35 ์ œ3์ ˆ ๊ฐ€์„ค๊ฒ€์ฆ ๋ฐ ๋ถ„์„ 38 1. ์ƒ๊ด€๊ด€๊ณ„ ๋ถ„์„ 38 2. ๋…๋ฆฝ๋ณ€์ˆ˜์™€ ์กฐ์ง๋ชฐ์ž…๊ณผ์˜ ๋‹ค์ค‘ํšŒ๊ท€ ๋ถ„์„ 39 3. ์กฐ์ ˆํšจ๊ณผ ๋ถ„์„ 41 ์ œ5์žฅ ๊ฒฐ๋ก  51 ์ œ1์ ˆ ์—ฐ๊ตฌ๊ฒฐ๊ณผ์˜ ์š”์•ฝ ๋ฐ ์‹œ์‚ฌ์  51 ์ œ2์ ˆ ์—ฐ๊ตฌ์˜ ํ•œ๊ณ„ ๋ฐ ํ–ฅํ›„ ์—ฐ๊ตฌ๋ฐฉํ–ฅ 55 ์ฐธ๊ณ ๋ฌธํ—Œ 57 ์„ค๋ฌธ์ง€ 64 Abstract 66Maste

    ์—ผ๋ฃŒ๊ฐ์‘ ํƒœ์–‘์ „์ง€์— ๋ฏธ์น˜๋Š” ํ”Œ๋ผ์ฆˆ๋ชจ๋‹‰ ํšจ๊ณผ

    Get PDF
    ํ•™์œ„๋…ผ๋ฌธ (๋ฐ•์‚ฌ)-- ์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› : ํ™”ํ•™๋ถ€, 2016. 8. ์„œ์ •์Œ.Dye-sensitized solar cells (DSSCs) have received much attention on account of their low cost-to-performance ratio, easy scale-up, light weight, ability to work at wide angles, low intensities of incident light, and modifiable aesthetic features such as color and transparency. However, the energy conversion efficiency of DSSCs needs to be further improved to become an economically profitable alternative. To improve energy conversion efficiency of the DSSCs, many efforts were performed in various aspects, such as increasing light harvesting by using panchromatic dye or enlarging amount of dye adsorbed on TiO2 nanoparticles (NPs), and reducing charge transfer resistance of I3 reduction by using alternative counter electrode. In this thesis, as a part of the ongoing study, two types of approaches have been made to improve energy conversion efficiency of the DSSCs1) developing new photoanode based on silver (Ag) NPs which has localized surface plasmon resonances (LSPRs) and 2) developing alternatives counter electrode based on graphene with gold (Au) NPs which has high catalytic activity and low charge-transfer resistance. In the first part, we fabricated plasmonic DSSCs based on composite films consisting of TiO2 NPs and Ag NPs. The energy conversion efficiency of the plasmonic DSSCs was affected by the degree of the spectral overlap between the extinction bands of Ag NPs and two visible absorption bands of N719 dye, centered at 393 and 533 nm. Also, it was affected by the weight percent of Ag NPs to TiO2 NPs. The energy conversion efficiency was enhanced as increasing to a certain weight percent of Ag NPs but then decreased when the weight percent was further increased, which was due to aggregation of metal NPs. As a result of aggregation of metal NPs, the LSPRs were red-shifted and mismatched to the two visible absorption bands of N719 dye. Accordingly, in this case, the energy conversion efficiency was decreased. Therefore, the aggregation of metal NPs should be avoided in the fabrication of the composite films of TiO2 NPs and metal NPs to achieve a high energy conversion efficiency of surface plasmon-enhanced DSSCs. Next, to prevent aggregation of Ag NPs, a quasi-monolayer film based on Ag NPs was developed. Three kinds of Ag NPs with different size and extinction maximum wavelength were prepared and immobilized on a photoactive layer coated with poly(4-vinyl pyridine)(P4VP). As a result, developed quasi-monolayer film based on Ag NPs showed panchromatic behavior which absorbed in all of the visible range. By constructing a panchromatic quasi-monolayer between the photoactive and scattering layers, the efficiency of the plasmonic DSSCs was enhanced from 8.9 ยฑ 0.3% to 11.0 ยฑ 0.4%, mainly by increase the photocurrent density. Absorption of dye molecules might be enhanced at around the surface of Ag NPs by the LSPRs, because the quasi-monolayer of Ag NPs scattered light strongly. Owing to the enhanced absorption by LSPRs effect, we could greatly reduce the thickness of the photoactive layer, about one-half the optimum length. As a second approach to achieve enhanced energy conversion efficiency, we fabricated a nanostructure-based graphene flake counter electrode by immobilization of gold nanoparticles (NPs) on fluorine-doped tin oxide (FTO) glass and the deposition of a thin layer of graphene flakes. The graphene flakes, fabricated using a thermal plasma jet system, were very thin and pure and had good crystallinity. Although their average size was larger than 100 nm, they were well dispersed in some solvents by sonication. Relatively large size and good crystallinity lead good conductivity, and their good dispersibility allow to fabricate uniform films. The efficiency of the DSSC with a graphene flake/Au NP/FTO counter electrode was as much as 9.71%, which is higher than that with a conventional Pt/FTO (9.02%) or graphene flake/FTO (8.91%) counter electrode. By measuring the power conversion and incident photo-conversion efficiency, we discovered that the high efficiency was due to the LSPRs effect of the Au NPs included between the graphene flakes and FTO. We also proved that the catalytic activity of a graphene flake/Au NP/FTO counter electrode was improved and the charge-transfer resistance at the electrode/electrolyte interface was decreased using cyclic voltammograms and electrochemical impedance spectroscopy.Chapter 1. Introduction 20 1.1. Dye-sensitized solar cells 21 1.1.1. Componants of DSSCs 22 1.1.2. Operational principle of DSSCs 26 1.1.3. Terminologies of DSSCs 29 1.2. Plasmonic DSSCs 34 1.2.1. Surface plasmon resonance 34 1.2.2. Localized surface plasmon resonances 36 1.2.3. Metal nanoparticles 37 1.2.4. Fabrication of metal NPs for LSPRs 39 1.2.5. Solution-phase synthesis for metal NPs 40 1.2.6. Plasmonic effect in DSSCs 41 1.3. Graphene 46 1.3.1. Synthesis of graphene 47 1.3.2. Properties of graphene 53 1.4. Graphene counter electrode in DSSCs 55 1.4.1. Graphene/polymer composites 57 1.4.2. Graphene/metal composites 59 1.4.3. Graphene/carbon nanotube composites 61 Chapter 2. Experimetal Section 63 2.1. Preparation of Ag nanoplates 64 2.1.1. Preparation of Ag seeds 64 2.1.2. Preparation of colloidal Ag nanoplates 65 2.2. Preparation of panchromatic Ag nanoplates 66 2.3. Preparation of Au nanoparticles 67 2.4. Preparation of graphene flakes 68 2.5. Fabrication of DSSCs 69 2.6. Charaterizations 71 2.6.1. EF-TEM 71 2.6.2. HR-TEM 71 2.6.3. FE-SEM 71 2.6.4. Solar simulator 72 2.6.5. IPCE 72 2.6.6. EIS 73 2.6.7. CV 73 2.6.8. Raman spectroscopy 74 2.6.9. XPS 74 Chapter 3. Aggregation Effect of Silver Nanoparticles on the Energy Conversion Efficiency of the Surface Plasmon-Enhanced Dye-Sensitized Solar Cells 75 3.1. Concept 76 3.2. Fabrication of plasmonic DSSCs 78 3.3. Result and discussion 79 3.3.1. Characterization of Ag nanoplates 79 3.3.2. Photovoltaic properties of plasmonic DSSCs 83 3.3.3. Plasmonic effect in DSSCs 89 3.3.4. Optimazation of plasmonic DSSCs 93 3.3.5. Aggregation effect in DSSCs 95 3.3.6. EIS of plasmonic DSSCs 99 3.4. Conclusion 101 Chapter 4. Panchromatic Quasi-Monolayer of Ag Nanoparticles for High-Efficiency Dye-Sensitized Solar Cells 103 4.1. Concept 104 4.2. Fabrication of panchromatic quasi-monolayer of DSSCs 106 4.3. Result and discussion 109 4.3.1. Characterization of Ag nanoplates 109 4.3.2. Characterization of quasi-monolayer of Ag nanoplates 114 4.3.3. Characterization of panchromatic quasi-monolayer of Ag nanoplates 116 4.3.4. Optimazation of panchromatic quasi-monolayer of Ag nanoplates for DSSCs 119 4.3.5. Photovoltaic properties of panchromatic DSSCs 125 4.3.6. EIS of panchromatic DSSCs 131 4. 4. Conclusion 138 Chapter 5. Nanostructure-based Graphene Flake Counter Electrode for Dye-Sensitized Solar Cells 139 5.1. Concept 140 5.2. Fabrication of hybrid counter electrodes 142 5.2.1. Immobilization of Au NPs 142 5.2.2. Preparation of counter electrodes 143 5.3. Result and discussion 145 5.3.1. Characterization of graphene flakes 145 5.3.2. Morphologies of hybrid counter electrode 153 5.3.3. Photovoltaic properties of DSSCs with hybrid counter electrode 157 5.3.4. Electrochemical properties of DSSCs with hybrid counter electrode 164 5.4. Conclusion 172 References 174 Abstract in Korean 189Docto

    ์กฐ์„ ์‹œ๊ธฐ '์‚ฌ์กฑ์ง€๋ฐฐ์ฒด์ œ๋ก '์˜ ์ƒˆ๋กœ์šด ์ „๋ง - 16์„ธ๊ธฐ ๊ฒฝ์ƒ๋„ ์„ฑ์ฃผ์ง€๋ฐฉ์„ ์†Œ์žฌ๋กœ ํ•˜์—ฌ-

    No full text
    15์„ธ๊ธฐ ์ดˆ๋‘๋กœ๋ถ€ํ„ฐ ๊ทผ๋Œ€์  ์„ธ๊ณ„์ฒด์ œ๋กœ ํŽธ์ž…๋˜๋Š” 19์„ธ๊ธฐ ํ›„๋ฐ˜์— ๊ฑธ์น˜๋Š๋Š ์กฐ์„ ์™•์กฐ ์‹œ๊ธฐ์˜ ์„ฑ๊ฒฉ์„ ํ•œ๋งˆ๋””๋กœ ๊ทœ์ •ํ•˜๋Š” ๊ฒƒ์€ ๋งค์šฐ ํž˜๋“ค๋‹ค. ์ด๋Š” ์ „๊ทผ๋Œ€ ํ•œ๊ตญ์‚ฌํšŒ์˜ ๊ธฐ๋ณธ ์„ฑ๊ฒฉ์„ ๊ทœ์ •ํ•˜๋Š” ๊ฒƒ์ด๊ธฐ ๋•Œ๋ฌธ์ด๋‹ค. ๋จผ์ € ์กฐ์„ ์‹œ๊ธฐ์˜ ์‚ฌํšŒ์— ๋Œ€ํ•œ ์—ฐ๊ตฌ์‚ฌ์ ์ธ ๊ฒ€ํ† ๋ฅผ ํ†ตํ•˜์—ฌ ์ „๊ทผ๋Œ€ ํ•œ๊ตญ์‚ฌํšŒ๋ฅผ ๋ณด๋Š” ์šฐ๋ฆฌ์˜ ์‹œ๊ฐ์ด ์–ด๋–ป๊ฒŒ ๋ณ€ํ•˜์—ฌ ์™”๋Š”๊ฐ€๋ฅผ ๊ฒ€ํ† ํ•˜๊ณ ์žํ•œ๋‹ค

    Development of a clinical decision support system for pressure Ulcer management

    No full text
    ํ•™์œ„๋…ผ๋ฌธ(๋ฐ•์‚ฌ) --์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :๊ฐ„ํ˜ธํ•™๊ณผ(๊ฐ„ํ˜ธํ•™์ „๊ณต),2010.2.Docto

    Elevated serum interleukin-15 levels in Kawasaki disease

    No full text
    ์˜ํ•™๊ณผ/์„์‚ฌ[ํ•œ๊ธ€] Interleukin 15(IL-l5)์€ T ์„ธํฌ์˜ ์ฆ์‹์„ ๋„๋ชจํ•˜๊ณ  B ์„ธํฌ์˜ ์„ฑ์žฅ ๋ฐ ์ž์—ฐ์‚ดํ•ด์„ธํฌ์˜ ์„ธํฌ ๋…์„ฑ ์ž‘์šฉ์„ ์œ ๋„ํ•˜๋Š” ์‹ธ์ดํ† ์นด์ธ์œผ๋กœ TNF-a์™€ ๊ฐ™์€ ์—ผ์ฆ์„ฑ ์‹ธ์ดํ† ์นด์ธ์„ ํ™œ์„ฑํ™” ์‹œํ‚ด์œผ๋กœ์จ ์—ผ์ฆ ์งˆํ™˜์— ์žˆ์–ด ์ฃผ์š”ํ•œ ์ž‘์šฉ์„ ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ๊ฐ€์™€์‚ฌ๋ผ๋ณ‘์€ ๊ธ‰์„ฑ ์—ผ์ฆ์„ฑ ์งˆํ™˜์œผ๋กœ์จ ํ™˜์ž์˜ ํ˜ˆ์ค‘๋‚ด ์—ผ์ฆ์„ฑ ์‹ธ์ดํ† ์นด์ธ์ธ TNF-a์™€ IL-6 ๋“ฑ์ด ์ฆ๊ฐ€๋˜๋Š” ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ์ด์— ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ๊ฐ€์™€์‚ฌ๋ผ๋ณ‘์—์„œ ๊ธ‰์„ฑ๊ธฐ์™€ ์•„๊ธ‰์„ฑ๊ธฐ์—์„œ ์—ผ์ฆ ์ „๊ตฌ ๋ฌผ์งˆ์ธ IL-15 ์ˆ˜์น˜์˜ ๋ณ€ํ™”๋ฅผ ์‚ดํŽด๋ณด๊ณ ์ž ํ•˜์˜€๊ณ , ๋˜ํ•œ IL-15์ด ๊ฐ€์™€์‚ฌ๋ผ๋ณ‘์—์„œ์˜ ์—ผ์ฆ ๋ฐ˜์‘์˜ ์ •๋„๋ฅผ ํ‰๊ฐ€ํ•˜๋Š” ๋ฐ์— ์žˆ์–ด ์–ผ๋งˆ๋‚˜ ์œ ์šฉํ•œ ์ง€ํ‘œ๋กœ ์ด์šฉ๋  ์ˆ˜ ์žˆ๋Š”์ง€๋„ ์•Œ์•„๋ณด๊ณ ์ž ํ•˜์˜€๋‹ค. 1998๋…„ 8์›”๋ถ€ํ„ฐ 1999๋…„ 8์›”๊นŒ์ง€ ๊ฐ€์™€์‚ฌ๋ผ๋ณ‘์œผ๋กœ ์ง„๋‹จ๋œ 20๋ช…์˜ ํ™˜์ž ๋ฐ 10๋ช…์˜ ์ •์ƒ ์†Œ์•„๋ฅผ ๋Œ€์ƒ์œผ๋กœ ํ˜ˆ์•ก์„ ์ฑ„์ทจํ•˜์—ฌ ํ˜ˆ์ฒญ์„ ๋ถ„๋ฆฌ ํ›„ -70'C์—๋ณด๊ด€ํ•˜์˜€๋‹ค๊ฐ€ IL-15๊ณผ TNF-a ๋†๋„๋ฅผ ELISA๋ฒ•์„ ์ด์šฉํ•˜์—ฌ ์ธก์ •ํ•˜์˜€๋‹ค. ๋˜ํ•œ ๊ธ‰์„ฑ๊ธฐ์— acute phase reactant์ธ ESR๊ณผ C-reactive protein๋„ ์ธก์ •ํ•˜์—ฌ ๊ธ‰์„ฑ๊ธฐ IL-15 ์ˆ˜์น˜์™€ TNF-a, ESR ๊ทธ๋ฆฌ๊ณ  C-reactive projtein ์ˆ˜์น˜์™€์˜ ์—ฐ๊ด€์„ฑ์„ ์‚ดํŽด๋ณด์•˜๋‹ค. ๊ธ‰์„ฑ๊ธฐ๊ตฐ IL-15 ๋†๋„์˜ ํ‰๊ท ์€ 11.4ยฑ5.8pg/m1๋กœ ์•„๊ธ‰์„ฑ๊ธฐ ํ‰๊ท  ๋†๋„(1.3ยฑ0.9pg/ml) ๋ฐ ์ •์ƒ ๋Œ€์กฐ๊ตฐ ํ‰๊ท  ๋†๋„(0.9ยฑ1.Opg/71)๋ณด๋‹ค ์ฆ๊ฐ€๋˜์–ด ์žˆ์—ˆ๋‹ค(p<0.01). ๊ธ‰์„ฑ๊ธฐ IL-15์˜ ์ฆ๊ฐ€์™€ TNF-a ์ˆ˜์น˜๋Š” ์œ ์˜ํ•œ ์–‘์˜ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋ณด์—ฌ(p<0.01), IL-15 ์ˆ˜์น˜๊ฐ€ ๋†’์€ ํ™˜์ž์— ์„œ๋Š” TNF-a ์ˆ˜์น˜๋„ ๋†’์•˜๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ESR ๊ทธ๋ฆฌ๊ณ  C-reactive protein์˜ ์ˆ˜์น˜๋Š” IL-15 ์ˆ˜์น˜์™€ ์„œ๋กœ ์˜๋ฏธ์žˆ๋Š” ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋‚˜ํƒ€๋‚ด์ง€ ์•Š์•˜๋‹ค. ๊ฒฐ๋ก ์ ์œผ๋กœ IL-15์€ ๊ฐ€์™€์‚ฌ๋ผ๋ณ‘์˜ ๊ธ‰์„ฑ๊ธฐ์— ์ฆ๊ฐ€๋˜์—ˆ๋‹ค๊ฐ€ ์•„๊ธ‰์„ฑ๊ธฐ์— ๊ฐ์†Œํ•˜๋ฉฐ IL-15์˜ ์ˆ˜์น˜๊ฐ€ ์ฆ๊ฐ€ํ• ์ˆ˜๋ก TNF-a์˜ ์ˆ˜์น˜๋„ ์ฆ๊ฐ€ํ•จ์„ ์•Œ ์ˆ˜ ์žˆ์—ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ IL-15 ์ˆ˜์น˜๊ฐ€ ๊ฐ€์™€์‚ฌ๋ผ๋ณ‘ ์—ผ์ฆ ๋ฐ˜์‘์˜ ์ •๋„๋ฅผ ํ‰๊ฐ€ํ•˜๋Š” ์œ ํšจํ•œ ์ง€ํ‘œ๋Š” ๋˜์ง€ ๋ชปํ•จ์„ ์•Œ ์ˆ˜ ์žˆ์—ˆ๋‹ค. [์˜๋ฌธ] Interleukin 15 (IL-15) is a novel cytokine that induces T cell proliferation, B cell maturation, natural killer (NK) cell cytotoxicity, and could play a pivotal role in inflammatory disease pathogenesis, acting upstream of TNF-a. Kawasaki disease(KD) is an inflammatory disease which increases serum levels of inflammatory cytokines such as TNF-a and IL-6. We designed this study to examine the serum levels of proinflammatory cytokine IL-15 in KD and to evaluate the role of IL-15 in estimating the severity of inflammation of KD. Twenty patients with KD and 10 healthy children were enrolled in this study. Serum levels of IL-15 and TNF-a were measured at acute and subacute stage of KD and normal controls by using ELISA, and acute phase reactants such as ESR and C-reactive proein were measured only in acute stage of the disease. There was a significant increase in serum levels of IL-15 measured at acute stage of KD (11.4ยฑ5.8pg/ml) compared with those of subacute stage (1.3ยฑ0.9pg/ml) (p<0.01) and normal controls (0.9ยฑ1.0pg/m1)(p<0.01). The increase of IL-15 was correlated with the increase of TNF-a(p<0.01), however it was not correlated with the levels of ESR and C-reactive protein. IL-15 was increased at the acute stage of KD and the increase of IL-15 was correlated with TNF-a. However it may not be indicated as an useful marker to estimate the severity of inflammation in KD.ope

    ์ œํ’ˆ์˜ ์†์„ฑ๋ณ€ํ™”์— ๋”ฐ๋ฅธ ๋””์ž์ธ ๊ตฌ์„ฑ์š”์†Œ์˜ ์ฒด๊ณ„๋ถ„์„ ์—ฐ๊ตฌ

    No full text
    ํ•™์œ„๋…ผ๋ฌธ(์„์‚ฌ)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :๋””์ž์ธํ•™๋ถ€ ๊ณต์—…๋””์ž์ธ์ „๊ณต,2004.Maste

    Clinical study of standard extract of the unsaponifiable fraction of Zea Mays L. on therapeutic effect in incipient periodontitis

    No full text
    ์น˜์˜ํ•™๊ณผ/๋ฐ•์‚ฌ[ํ•œ๊ธ€]Zea Mays L.๋ถˆ๊ฒ€ํ™” ์ •๋Ÿ‰์ถ”์ถœ๋ฌผ์ด ์ดˆ๊ธฐ ์น˜์ฃผ์—ผ(๋ถ€์ฐฉ์ƒ์‹ค : 1-3mm)์— ๋Œ€ํ•œ ์•ฝ์ œ์˜ ๋‹จ๋…ํšจ๊ณผ์™€ ๊ตฌ๊ฐ•์œ„์ƒ๊ต์œก ๋ฐ ์น˜์ฃผ์น˜๋ฃŒ์™€ ๋ณ‘ํ–‰ํ•˜์—ฌ ์‚ฌ์šฉ์‹œ์˜ ํšจ๊ณผ๋ฅผ ์ธก์ •ํ•˜๊ธฐ ์œ„ํ•ด์„œ 49๋ช…์˜ ํ™˜์ž์—์„œ 691๋ถ€์œ„๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๊ฐ ๋ถ€์œ„๋ฅผ ๋ฌด์ฒ˜์น˜๊ตฐ(โ… ๊ตฐ), ๊ตฌ๊ฐ•์œ„์ƒ๊ต์œก์„ ์‹œํ–‰ํ•œ ๊ตฐ(โ…ก๊ตฐ), ์น˜์„์ œ๊ฑฐ์ˆ ์„์‹œํ–‰ํ•œ ๊ตฐ(โ…ข๊ตฐ), ์น˜์€์—ฐํ•˜์†ŒํŒŒ์ˆ ์„ ์‹œํ–‰ํ•œ ๊ตฐ(โ…ฃ๊ตฐ)์œผ๋กœ ๋‚˜๋ˆ„๊ณ  ๊ฐ๊ฐ์˜ ๊ตฐ์„ ์ด์ค‘๋งน๊ฒ€๋ฒ•์„ ์‚ฌ์šฉํ•˜์—ฌ Zea Mays L.๋ถˆ๊ฒ€ํ™” ์ •๋Ÿ‰ ์ถ”์ถœ๋ฌผ 35mg์„ ํˆฌ์—ฌํ•œ ๊ตฐ์„ ์‹คํ—˜๊ตฐ, ์œ„์•ฝ์„ ํˆฌ์—ฌํ•œ ๊ตฐ์„ ๋Œ€์กฐ๊ตฐ์œผ๋กœ ๋‚˜๋ˆˆ ํ›„์ดˆ์ง„์‹œ ์น˜์ฃผ์ž„์ƒ์ง€์ˆ˜(์น˜์ฃผ๋‚ญ๊นŠ์ด, ๋ถ€์ฐฉ์ƒ์‹ค. ์ถœํ˜ˆ์ง€์ˆ˜, ์น˜ํƒœ์ง€์ˆ˜)๋ฅผ ์ธก์ •ํ•˜์—ฌ 4, 8, 12, 16์ฃผ์˜ ์žฌ์ธก์ • ๊ฒฐ๊ณผ์™€ ๊ฐ๊ฐ ๋น„๊ตํ•˜์—ฌ ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ฒฐ๋ก ์„ ์–ป์—ˆ๋‹ค. 1. โ… ๊ตฐ(๋ฌด ์ฒ˜์น˜๊ตฐ)์—์„œ ์น˜ํƒœ์ง€์ˆ˜๋Š” ์‹คํ—˜๊ตฐ์—์„œ 4์ฃผ, 12์ฃผ์— ์œ ์˜์„ฑ ์žˆ๋Š” ๊ฐ์†Œ๋ฅผ ๋ณด์˜€๊ณ (P<0.05), ์ถœํ˜ˆ์ง€์ˆ˜์™€ ์น˜์ฃผ๋‚ญ ๊นŠ์ด๋Š” ์‹คํ—˜๊ตฐ, ๋Œ€์กฐ๊ตฐ ๋ชจ๋‘4, 8, 12, 16์ฃผ์—์„œ ์œ ์˜์„ฑ ์žˆ๋Š” ๊ฐ์†Œ๋ฅผ ๋ณด์˜€์œผ๋‚˜(P<0.05) ์„œ๋กœ๊ฐ„์˜ ์œ ์˜์ฐจ๋Š” ์—†์—ˆ๋‹ค. 2. โ…ก๊ตฐ(๊ตฌ๊ฐ•์œ„์ƒ๊ต์œก์„ ์‹œํ–‰ํ•œ ๊ตฐ)์—์„œ ์น˜ํƒœ์ง€์ˆ˜์™€ ๋ถ€์ฐฉ์ƒ์‹ค์€ ์‹คํ—˜๊ตฐ, ๋Œ€์กฐ๊ตฐ ๋ชจ๋‘ 4, 8, 12,16์ฃผ์—์„œ ์œ ์˜์„ฑ ์žˆ๋Š” ๊ฐ์†Œ๋ฅผ ๋ณด์˜€์œผ๋‚˜(P<0.05) ์„œ๋กœ๊ฐ„์˜ ์œ ์˜์ฐจ๋Š” ์—†์—ˆ๊ณ , ์น˜์ฃผ๋‚ญ ๊นŠ์ด๋Š” 4์ฃผ์—์„œ ์‹คํ—˜๊ตฐ์ด ๋Œ€์กฐ๊ตฐ๋ณด๋‹ค ์œ ์˜์„ฑ์žˆ๋Š” ๊ฐ์†Œ๋ฅผ ๋ณด์˜€๋‹ค(P<0.05). 3. โ…ข๊ตฐ(์น˜์„์ œ๊ฑฐ์ˆ ์„ ์‹œํ–‰ํ•œ ๊ตฐ)์—์„œ๋Š” ์น˜ํƒœ์ง€์ˆ˜๊ฐ€ ์‹คํ—˜๊ตฐ์ด ๋Œ€์กฐ๊ตฐ๋ณด๋‹ค ์œ ์˜์„ฑ์žˆ๋Š” ๊ฐ์†Œ๋ฅผ ๋ณด์˜€์œผ๋ฉฐ(P<0.05), ์ถœํ˜ˆ์ง€์ˆ˜, ์น˜์ฃผ๋‚ญ ๊นŠ์ด, ๋ถ€์ฐฉ์ƒ์‹ค์€ ์‹คํ—˜๊ตฐ, ๋Œ€์กฐ๊ตฐ ๋ชจ๋‘ ๊ฐ์†Œํ•˜์˜€์œผ๋‚˜(P<0.05) ์„œ๋กœ๊ฐ„์˜ ์œ ์˜์ฐจ๋Š” ์—†์—ˆ๋‹ค. 4.โ…ฃ๊ตฐ(์น˜์€์—ฐํ•˜์†ŒํŒŒ์ˆ ์„ ์‹œํ–‰ํ•œ ๊ตฐ)์™ธ ์‹คํ—˜๊ตฐ์—์„œ๋Š” ์น˜ํƒœ์ง€์ˆ˜, ์ถœํ˜ˆ์ง€์ˆ˜๋Š” ํšจ๊ณผ๊ฐ€ ์—†์—ˆ์œผ๋ฉฐ ์น˜์ฃผ๋‚ญ ๊นŠ์ด๋Š” ์‹คํ—˜๊ตฐ, ๋Œ€์กฐ๊ตฐ ๋ชจ๋‘ ๊ฐ์†Œํ•˜์˜€์œผ๋‚˜(P<0.05) ์„œ๋กœ๊ฐ„์˜ ์œ ์˜์ฐจ๋Š” ์—†์—ˆ๊ณ , ๋ถ€์ฐฉ์ƒ์‹ค์€ 16์ฃผ์—์„œ ์‹คํ—˜๊ตฐ์ด ๋Œ€์กฐ๊ตฐ๋ณด๋‹ค ์œ ์˜์„ฑ์žˆ๋Š” ๊ฐ์†Œ๋ฅผ ๋ณด์˜€๋‹ค(P<0.05). [์˜๋ฌธ]The purpose of this study was to evaluate the therapeutic effect of standard extract of the unsaponifiable fraction of Zea Mays L. when administered alone, or combined with oral hygiene instruction, scaling, and subgingival curettage in incipient periodontitis. This study was carried out on 691 incipient periodontitis sites which had loss of attachment between1mm and 3mm among 49 patients. Clinical parameters such as probing depth, loss of attachment, bleeding index and plaque index were recorded on initial examination. During administration of standard extract of the unsaponifable fraction of Zea Mays L. to experimental group and placebo to control group,4 types of therapy were performed: (โ… ) no treatment, (โ…ก) oral hygiene instruction, (โ…ข) scaling, and (โ…ฃ) suhgingival curettage. Clinical parameters were recorded on 4,8,12,16 weeks after treatment, and all data were analysed statistical1y. The results were as follows. 1. For group โ…  (no treatment), there were significant reductions of plaque index on 4, 12 weeks in experimental group (P<0.05). There were significant reductions on 4, 8, 12, 16 weeks in bleeding index and probing depth in both experimental group and control group (P<0.05), but there was no significant difference between experimental group and control group. 2. For group โ…ก (oral hygiene instruction), there were significant reductions of plaque index and loss of attachment on 4, 5, 12, 16 weeks in both experimental group and control group(P<0.05),but there was no significant difference between experimental group and control group. There was significant reduction of probing depth on 4 weeks in experimental group compared to control group(P<0.05). 3. For group โ…ข (sealing), there were significant reductions of plaque index in experimental group compared to control group (P<0.05). There were significant reductions of bleeding index, probing depth and loss of attachment in both experimental group and control group(P<0.05), but there was no significant difference experimental group and control group. 4. For group โ…ฃ (subgingival curettage), there were little effect on plauqe index and bleeding index in experimental group. There were significant reductions of probing depth in both experimental group and control group(P<0.05), there was no significant reduction between experimental group and control group. There was significant reduction of loss of attachment on 12 weeks in experimental group compared to control group(P<0.05).restrictio

    ์กฐ์„ ํ›„๊ธฐ ์‚ฌ์กฑ์˜ ์ดŒ๋ฝ์ง€๋ฐฐ

    No full text

    A Study of diffusion process of small particles in a pipe with cavity

    No full text
    Maste
    • โ€ฆ
    corecore