47 research outputs found

    이청쀀 μ†Œμ„€μ˜ λΉ„νŒμ  λ‹΄λ‘  연ꡬ

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    ν•™μœ„λ…Όλ¬Έ(석사)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :κ΅­μ–΄κ΅­λ¬Έν•™κ³Ό ν˜„λŒ€λ¬Έν•™μ „κ³΅,1999.Maste

    Hybrid Position Detection Method Combining Hall Sensors and Sensorless Control for PMSM Drive

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    DoctorThis paper presents the transition method between Hall sensors based position detection method in a low speed region and back EMF based sensorless control in a high speed region. Thereby, the estimated rotor position has good attributes of the two methods. To achieve the seamless transition, the Gopinath model is considered. However, the general 2nd order Gopinath model does not provide the fast transition. In this paper, the 3rd order Gopinath model is proposed and phase compensation is added. As a result, a smooth and fast transition can be obtained, and the interference between two position detection methods is reduced. The effectiveness of the proposed method is demonstrated through simulation and experimental results

    μ„œμšΈ 도심뢀 λ¬Έν™”μž¬κ°„ μ—°κ³„λ°©μ•ˆ

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    ν•™μœ„λ…Όλ¬Έ(석사)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :ν˜‘λ™κ³Όμ • λ„μ‹œμ„€κ³„ν•™μ „κ³΅,2006.Maste

    (A) study on mobility of Korean security analysts : perspectives on the sponsored mobility and contest mobility

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    Thesis(masters) --μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :κ²½μ˜ν•™κ³Ό(인사쑰직전곡),2010.8.Maste

    νŠΈλžœμŠ€μ  λ”μ˜ κ²½ν—˜μ„ 톡해 λ³Έ 젠더 정체성 ν˜•μ„± κ³Όμ •

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    ν•™μœ„λ…Όλ¬Έ(석사) --μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :ν˜‘λ™κ³Όμ •(여성학전곡),2008. 8.Maste

    MZR λ””μŠ€ν¬ 배열에 κΈ°λ°˜ν•œ MPEG-1 λΉ„λ””μ˜€μ˜ NCTT ν™•μž₯ 닀쀑 해상도 λ°°μΉ˜κΈ°λ²•

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    ν•™μœ„λ…Όλ¬Έ(석사)--μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› :μ „κΈ°.컴퓨터곡학뢀,2001.Maste

    Isolated word recognition with the E-MIND II neurocomputer

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    Maste

    μ•…μ„± μ†Œμž₯ 폐쇄 ν™˜μžμ—μ„œμ˜ 경곡μž₯ μŠ€ν…νŠΈ μ„€μΉ˜μˆ μ˜ νš¨μš©μ„±

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    ν•™μœ„λ…Όλ¬Έ (석사)-- μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› : μ˜κ³ΌλŒ€ν•™ μž„μƒμ˜κ³Όν•™κ³Ό, 2018. 2. μœ€μ°½μ§„.λͺ©μ : μ•…μ„± μ†Œμž₯ 폐쇄 (malignant small bowel obstruction)둜 경곡μž₯ μŠ€ν…νŠΈ μ„€μΉ˜μˆ  (trans-jejunostomy stent placement) 을 받은 ν™˜μžμ—μ„œ μž„μƒμ  νš¨μš©μ„±μ„ ν‰κ°€ν•˜κ³ μž ν•œλ‹€. λŒ€μƒ 및 방법: 2009 λ…„ 3 μ›”λΆ€ν„° 2016 λ…„ 12μ›”κΉŒμ§€ μ•…μ„± μ†Œμž₯ νμ‡„λ‘œ 진단 받은 23 λͺ…μ˜ ν™˜μžλ₯Ό λŒ€μƒμœΌλ‘œ ν•œλ‹€. 20 λͺ…은 ν•œ ꡰ데, 3 λͺ…은 두 ꡰ데 μ†Œμž₯ 폐쇄가 μžˆμ—ˆλ‹€. μš°μ„  μ•…μ„± μ†Œμž₯ 폐쇄 λΆ€μœ„μ˜ 30–100 cm 상방에 곡μž₯ μ°½λƒ„μˆ μ„ μ‹œν–‰ν–ˆκ³ , 직후 ν•΄λ‹Ή μ°½λƒ„μˆ  λΆ€μœ„λ₯Ό 톡해 μŠ€ν…νŠΈ μ„€μΉ˜μˆ μ„ μ‹œν–‰ν–ˆλ‹€. 기술적 성곡 μ—¬λΆ€, μ†Œμž₯의 감압 μ—¬λΆ€, μž₯ 폐쇄 증상 ν˜Έμ „ (3 단계 평가) 및 식이 진행 μ—¬λΆ€ (4 단계 평가), μ‹œμˆ  λΆ€μž‘μš© 여뢀에 λŒ€ν•΄ ν›„ν–₯적 κ΄€μ°° 연ꡬλ₯Ό μ‹œν–‰ν–ˆλ‹€. κ²°κ³Ό: μŠ€ν…νŠΈ μ„€μΉ˜μˆ μ€ 22λͺ…μ˜ ν™˜μžμ—μ„œ 기술적으둜 μ„±κ³΅ν–ˆλ‹€ (95.7%). μž₯ 폐쇄 증상은 μ‹œμˆ  2 μ£Ό ν›„ λΆ€λΆ„ ν˜Έμ „ (9λͺ…) ν˜Ήμ€ μ™„μ „ ν˜Έμ „ (13 λͺ…) λ˜μ—ˆλ‹€. μ†Œμž₯의 감압은 μ†Œμž₯쑰영술 (21λͺ…) κ³Ό μ „μ‚°ν™”λ‹¨μΈ΅μ΄¬μ˜ (16λͺ…) μ—μ„œ ν™•μΈλ˜μ—ˆλ‹€. 식이 진행은 μ„Έ 단계 (1λͺ…), 두 단계 (7λͺ…), ν•œ 단계 (14λͺ…) ν˜Έμ „λ˜μ—ˆλ‹€ (P<0.0001). 쀑등도 λΆ€μž‘μš©μ€ 3λͺ…μ˜ ν™˜μžμ—μ„œ λ°œμƒν–ˆμœΌλ©° (13.0%), 2 λͺ…μ˜ ν™˜μžμ—μ„œ κ΅­μ†Œ 볡막염, 1λͺ…μ˜ ν™˜μžμ—μ„œ μž₯ 천곡이 λ°œμƒν–ˆκ³  보쑴적 치료 후에 ν˜Έμ „λ˜μ—ˆλ‹€. κ²°λ‘ : 경곡μž₯ μŠ€ν…νŠΈ μ„€μΉ˜μˆ μ€ μ•…μ„± μ†Œμž₯ 폐쇄 ν™˜μžμ—μ„œ 높은 치료 효과λ₯Ό λ³΄μ˜€λ‹€. 95.7%의 ν™˜μžμ—μ„œ 기술적 성곡을 λ³΄μ˜€μœΌλ©°, 이에 λ”°λ₯Έ μž„μƒ μ¦μƒμ˜ ν˜Έμ „λ„ λ³΄μ˜€λ‹€. μ‹œμˆ  λΆ€μž‘μš©μ€ λ“œλ¬Όμ§€ μ•Šμ§€λ§Œ, 보쑴적 치료둜 ν˜Έμ „λ˜μ—ˆλ‹€.Purpose: To evaluate the clinical effectiveness of trans-jejunostomy stent placement in patients with malignant small bowel obstructions (MSBO). Materials and Methods: Between March 2009 and December 2016, 23 patients (20–81 years) with one (n=20) or two (n=3) MSBO from advanced abdominal and pelvic malignancies were enrolled. Percutaneous jejunostomy was created at 30–100cm upstream to MSBO, immediately followed by stent placement through the jejunostomy stoma at the same session. A retrospective analysis was conducted for technical success, bowel decompression, improvement of obstructive symptoms (3-point scale) and food intake capacity (4-point scale), and procedure-related complications. Results: Stent placement was technically successful in 22 patients (95.7%). Obstructive symptoms improved by partially (n=9) or completely (n=13) within 2 weeks after the procedure. Bowel decompression was confirmed by enterography (n=21) and CT (n=16). Food intake capacity improved by 3 (n=1), 2 (n=7), and 1 point (n=14) (p<.0001). Major complications (n=3, 13.0%) including localized peritonitis (n=2) and bowel perforation (n=1), which were successfully treated conservatively. Conclusions: Trans-jejunostomy stent placement is an effective treatment in patients with MSBO. It is technically feasible in most patients (95.7%) and provides substantial symptomatic improvement. Procedure-related complications are not uncommon, but can be managed conservatively.I. Introduction 1 II. Materials and methods 4 A. Patients 4 B. Procedures 5 C. Follow-up 7 D. Analysis 8 III. Results 10 A. Technical and clinical success 10 B. Complications 11 C. Follow-up 12 IV. Discussion 14 V. Reference 19 VI. Abstract (in Korean) 38Maste
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