29 research outputs found

    (A) Study on Course Stability of Towing and Towed Vessels System under Wind Pressure

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    A Study on Course Stability of Towing and Towed Vessels System under Wind Pressure The author discusses the problem on course stability of towed ship under severe wind pressure. The characteristic equation to assess the stability on course, is derived from sway and yaw coupled motions of towing and towed vessels with wind effect. Through the numerical calculation on course stability of towing and towed vessels system, the relationship between the course stability of a towed ship and wind direction or towrope length, is clarified with the parameter of wind speed in terms of Beaufort number. Two types of towed vessel, such as a bulk carrier and a passenger liner, are applied and examined. The major results are as follows. The course stability of towed vessel under wind pressure depends on the inherent course stability of the vessel herself. The towed vessel will be much unstable for the range from beam to quarter wind in relatively high wind speed. The length of towrope has also great infulence upon the stability. Long towrope will be able to stabilize for all range of wind direction in relatively low wind speed or for the head wind in relatively high wind speed

    Development of Mathematical model for the Prediction of Strip Profile

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    Etude sur la problematique morale dans la pensee de diderot

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    ํ•™์œ„๋…ผ๋ฌธ(๋ฐ•์‚ฌ)--์„œ์šธๅคงๅญธๆ ก ๅคงๅญธ้™ข :ไฝ›่ชžไฝ›ๆ–‡ๅญธ็ง‘ ไฝ›ๆ–‡ๅญธๅฐˆๆ”ป,1996.Docto

    Biological control of phytophthora blight of red peper by antagonistic bacillus polymyxa `AC-1`

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    ํ•™์œ„๋…ผ๋ฌธ(๋ฐ•์‚ฌ)--์„œ์šธๅคงๅญธๆ ก ๅคงๅญธ้™ข :่พฒ็”Ÿ็‰ฉๅญธ็ง‘ ๆค็‰ฉ็—…็†ๅญธๅฐˆๆ”ป,1995.Docto

    (An)Approach to Julius Caesar

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    ํ•™์œ„๋…ผ๋ฌธ(์„์‚ฌ)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :์˜์–ด์˜๋ฌธํ•™๊ณผ ๋ฌธํ•™์ „๊ณต,2005.Maste

    The Prediction of Roll Force, Roll Power and Roll Wear Distributions

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    DoctorThis paper presents a precision on-line model for the prediction of the roll force and roll power and roll wear distributions in a round-oval (or oval-round) pass rolling sequence, which is most commonly employed in rod and wire mills. The approach uses the concept of ideal rolling, to reduce the number of the dimensionless parameters with which the model is constructed. The prediction accuracy of the proposed model is examined through comparison with the predictions from the FE model. The prediction accuracy is also examined through comparison with the measurements made in POSCO No. 3 wire and rod

    Designing a taint analyzer for detecting PL/SQL code change impacts based on abstract interpretation

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    ํ•™์œ„๋…ผ๋ฌธ (์„์‚ฌ)-- ์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› : ์ปดํ“จํ„ฐ๊ณตํ•™๋ถ€, 2016. 2. ์ด๊ด‘๊ทผ.์˜ค์—ผ ๋ถ„์„์„ ํ†ตํ•ด PL/SQL ์ฝ”๋“œ๋กœ ์ž‘์„ฑ๋œ ์‚ผ์„ฑ ๋ฐ˜๋„์ฒด ์ƒ์‚ฐ๊ณต์ • ์†Œํ”„ํŠธ์›จ์–ด์˜ ๋ณ€๊ฒฝ ์˜ํ–ฅ์„ ์‹คํ–‰ ์ „์— ๋น ํŠธ๋ฆผ ์—†์ด ๊ฐ์ง€ํ•˜๋Š” ๋ฐฉ๋ฒ•์„ ์ œ์•ˆํ•œ๋‹ค. ์ด ๋ฐฉ๋ฒ•์€ ์š”์•ฝ ํ•ด์„ ํ”„๋ ˆ์ž„์›Œํฌ์— ๊ธฐ๋ฐ˜ํ•˜์—ฌ ์—„๋ฐ€ํ•œ ์ˆ˜ํ•™์  ์ด๋ก ์„ ๋ฐ”ํƒ•์œผ๋กœ ํ•˜๋ฉด์„œ ๊ตฌํ˜„์ด ๊ฐ„๋‹จํ•˜๊ณ  ์„ฑ๋Šฅ๊ณผ ์ •ํ™•๋„ ํŠœ๋‹๋„ ์šฉ์ดํ•˜๋‹ค. ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ์ฝ”๋“œ ๋ณ€๊ฒฝ ์˜ํ–ฅ์„ ์˜ค์—ผ ์ „ํŒŒ๋กœ ์ •์˜ํ•˜๊ณ , ๋Œ€์ƒ ์–ธ์–ด์ธ PL/SQL์„ ๋ถ„์„์— ์šฉ์ดํ•œ CFG์–ธ์–ด๋กœ ๋ณ€ํ™˜ํ•˜์—ฌ ์‹ค์ œ ์‹คํ–‰ ์˜๋ฏธ์™€ ์ด๋ฅผ ์š”์•ฝํ•œ ์š”์•ฝ ์‹คํ–‰ ์˜๋ฏธ๋ฅผ ์ •์˜ํ•˜์˜€๊ณ , ์ด๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ์œ ํ•œ ์‹œ๊ฐ„ ๋‚ด์— ๋ณ€๊ฒฝ ์˜ํ–ฅ ์ง€์ ์„ ๋น ํŠธ๋ฆผ ์—†์ด ์ฐพ์•„๋‚ด๋Š” ๋ถ„์„๊ธฐ๋ฅผ ์„ค๊ณ„ํ•˜์˜€๋‹ค. ๊ฐœ๋… ๊ฒ€์ฆ์„ ์œ„ํ•ด ์„ค๊ณ„ ๋ช…์„ธ๋ฅผ ์ค€์ˆ˜ํ•˜๋Š” ๊ฐ„๋‹จํ•œ ๋ถ„์„๊ธฐ๋ฅผ ๊ตฌํ˜„ํ•˜์—ฌ ์‹คํ—˜ํ•˜์˜€์œผ๋ฉฐ 6๊ฐœ ๋Œ€ํ‘œ ํ…Œ์ŠคํŠธ ์ผ€์ด์Šค์— ๋Œ€ํ•ด ๋ถ„์„๊ธฐ๊ฐ€ ๋ณ€๊ฒฝ ์˜ํ–ฅ์„ ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ์ฐพ์•„๋ƒ„์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค.์ œ 1 ์žฅ ์„œ๋ก  1 1.1 ๋™๊ธฐ 1 1.2 ํ˜„์žฅ์—์„œ ๋ณ€๊ฒฝ ์˜ํ–ฅ์„ ํ™•์ธํ•˜๋Š” ๋ฐฉ๋ฒ•์˜ ๋ฌธ์ œ์  2 1.3 ๋ฌธ์ œ ํ•ด๊ฒฐ์„ ์œ„ํ•œ ์•„์ด๋””์–ด 2 1.4 ๋…ผ๋ฌธ ๊ตฌ์„ฑ 3 ์ œ 2 ์žฅ ์˜ค์—ผ ์ „ํŒŒ๋ฅผ ํ†ตํ•œ ๋ณ€๊ฒฝ ์˜ํ–ฅ ์ •์˜ 4 2.1 ์˜ค์—ผ ์ฃผ์ž…์„ ํ†ตํ•œ ์ฝ”๋“œ ๋ณ€๊ฒฝ ์ •์˜ 4 2.2 ๋ณ€๊ฒฝ ์˜ํ–ฅ์˜ ์ „ํŒŒ ๊ทœ์น™ 5 ์ œ 3 ์žฅ ๋ถ„์„ ๋Œ€์ƒ ์–ธ์–ด์™€ ์ „์ฒ˜๋ฆฌ 7 3.1 ์ถœ๋ฐœ ์–ธ์–ด: PL/SQL ํ•ต์‹ฌ ์–ธ์–ด 7 3.2 ์ค‘๊ฐ„ ์–ธ์–ด ๋ณ€ํ™˜ 8 3.3 ๋Œ€์ƒ ์–ธ์–ด: CFG ์–ธ์–ด 12 ์ œ 4 ์žฅ ๋ณ€๊ฒฝ ์˜ํ–ฅ ๋ถ„์„๊ธฐ ๋””์ž์ธ 19 4.1 ์‹ค์ œ ์‹คํ–‰ ์˜๋ฏธ 19 4.1.1 ์‹ค์ œ ๋„๋ฉ”์ธ 19 4.1.2 ์‹ค์ œ ์˜๋ฏธ ๊ตฌ์กฐ 20 4.2 ์š”์•ฝ ์‹คํ–‰ ์˜๋ฏธ 24 4.2.1 ์š”์•ฝ ๋„๋ฉ”์ธ 24 4.2.2 ์š”์•ฝ ์˜๋ฏธ ๊ตฌ์กฐ 26 4.3 ๋ณ€๊ฒฝ ์˜ํ–ฅ ์ •๋ณด ๊ฐ€๊ณต 29 ์ œ 5 ์žฅ ๊ตฌํ˜„ ๋ฐ ์‹คํ—˜ 31 5.1 ๋ถ„์„๊ธฐ ๊ตฌํ˜„ 31 5.1.1 ์š”์•ฝ ๋„๋ฉ”์ธ ๊ตฌํ˜„ 32 5.1.2 ์š”์•ฝ ํ•ด์„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ 32 5.2 ๊ฐœ๋… ๊ฒ€์ฆ์„ ์œ„ํ•œ ์‹คํ—˜ 34 ์ œ 6 ์žฅ ๊ณ ์ฐฐ ๋ฐ ํ–ฅํ›„ ๊ณผ์ œ 37 6.1 ๊ณ ์ฐฐ 37 6.2 ํ–ฅํ›„ ๊ณผ์ œ 37 ์ œ 7 ์žฅ ๊ฒฐ๋ก  39 ์ฐธ๊ณ ๋ฌธํ—Œ 40 Abstract 42Maste
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