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- 저자 : 최상태 (검색결과 346 건)
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최상태,김건국,강진모 대한혈관외과학회 2016 Vascular Specialist International Vol.32 No.1
A 62-year-old male with a smoking history of 30 pack-years presented with a 1-year history of a periumbilical pulsating mass. He had been treated for hypertension for 2 years. Physical examination revealed a huge pulsating mass in the periumbilical abdomen. Femoral and popliteal arterial pulses were palpable. Computed tomography showed arterial dissection in the proximal segment of the superior mesenteric artery, a huge aneurysm (52×50 mm) with mural thrombus and two smaller aneurysms (20×20 mm) in the right ileocolic and ileal branches, along with atherosclerotic changes. Interposition using the great saphenous vein was performed after aneurysmal isolation and ligation of jejunal branches in the sac. Distal flow was reestablished by end-to-end and end-to-side anastomoses of the right ileocolic and ileal branches, respectively. No complications were observed at 1-year follow-up.
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崔尙台,全在琪 경북대학교 교육대학원 1976 논문집 Vol.6-7 No.-
Scales taken from bulb of Georgia lily(Lilium longiflorum Thunb.) were treated with hot water (30˚-55℃) to investigate bulblet yield in 80 days and growth of scaly leaf emergence and fleshness and root length of bulblet for 80 days after scaling. The results obtained are as follows; 1. The hot water treatment to scale was effective on accelerating the scaly leaf emergence. 2. Dead scale was found more in the plot treated with hot water of 45℃ or higher. 3. Bulblet fleshness was pormoted considerably by hot water treatment, ranging from 35˚ to 40℃. 4. Bulblet fleshness had completed in about 60 days after scaling. 5. The longer root was found in the plot which scaly leaf grew vigorously.
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최상태,하장호 경주대학교 2004 論文集 Vol.17 No.-
This paper represents the characteristic analysis for the etching in SF_(6) plasma and the plasma itself, based on the specific knowledges on the discharge mechanism of SF_(6) plasma which is widely used for the applications of dry etching, using Radio Frequency Inductively Coupled Plasma (RFICP) by measuring electron density, electron temperature then observing their relationship to find the effect of discharge mechanism of SF_(6) plasma to the etching in contrast to the existing method of finding optimal discharge condition by heuristic.
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최상태,박광서 경주대학교 건설환경연구소 1999 建設環境論叢 Vol.- No.2
Insulation diagnosis techniques of power equipments for the stable power supply and prevention from accidents are of high importance. Diagnosis techniques is able to prevent from large accidents before they happen by finding signs of the accidents. From this point of view, this paper simulated discharge progress and partial discharge using needle-plan electrode system in air, studied the distribution of frequency spectrum of the radiated electromagnetic waves using biconical antenna and spectrum analyzer. From results of this study, the new method was introduced for measurement and analyzation of the radiated electromagnetic waves in accordance with discharge progress in air, Besides, according to the consideration of the mutual relation between frequency spectrum of the radiated electromagnetic waves and discharge progress, it was confirmed that detecting partial discharge and estimating discharge progress were possible.
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최상태,전병준 경주대학교 건설환경연구소 1999 建設環境論叢 Vol.- No.2
In this paper, multi discharge type ozonizer has been designed and manufactured. The ozonizer is equipped with three electrodes(central electrode of screw shape, internal electrode and external electrode). This paper describes the following two characteristics: ① The characteristics of discharge with variation of output voltage of AC H.V source, flow rate of oxygen supplied gas and discharge voltage. ② The characteristics of ozone generation by varying flow rate and discharge power.
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최상태,하장호 慶州大學校 2005 論文集 Vol.18 No.2
This paper represents the characteristic analysis for the etching in SF_(6) plasma and the plasma itself, based on the specific knowledges on the discharge mechanism of SF_(6) plasma which is widely used for the applications of dry etching, using Radio Frequency Inductively Coupled Plasma (RFICP) by measuring eletron density, electron temperature then observing their relationship to find the effect of discharge mechanism of SF_(6) plasma to the etching in contrast to the existing method of finding optimal discharge condition by heuristic
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최상태 경주대학교 정보전자기술연구소 2008 情報電子技術論叢 Vol.7 No.-
A spectroscopic measuring system was developed in Order to determine optical gain of laser discharge for any optical transitions between 190 nm and 800 nm without laser resonator. With an image optics and a feedback optics emitted light of discharge was entered in a monochromator and received subsequently at a photomultiplier. This system measures optical gain of discharging distance and line intensity in W/㎡
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최상태,Jung Soo Song,Seung Jun Kim,Chan Ho Kim,문성진 대한의학회 2020 Journal of Korean medical science Vol.35 No.13
Background: The 24-hour uric acid excretion measurement is important in assessing disease status and helping to select the appropriate uric acid-lowering agent for patients with gout, however, it is inconvenient. The authors investigated the efficacy of the random urine uric acid- to-creatinine (UA/CR) ratio to screen the patients who under-secreted 24-hour urine uric acid. Methods: This was a retrospective cross-sectional study. Ninety patients with gout, without undergoing uric acid-lowering treatment were enrolled. Twenty-four-hour urine and random urine samples were obtained on the same day. Six hundred mg of uric acid in the 24-hour urine sample was used as a standard for distinguishing between over and under-excretion groups. Results: The random urinary UA/CR ratio showed positive correlation with 24-hour urine uric acid excretion (γ = 0.398, P < 0.001). All the patients with the random UA/CR less than 0.2 excreted less than 600 mg uric acid in 24-hour urine collection. When the random urine UA/CR ratio < 0.2 was regarded as a positive result, the positive predictive value, negative predictive value, sensitivity, and specificity in the uric acid under-excretion were 100% (8 of 8), 64.6% (53 of 82), 21.6% (8 of 37), and 100% (53 of 53), respectively. Conclusion: There is a moderate positive correlation between the random urinary UA/CR ratio and 24-hour urine uric acid excretion, so that UA/CR ratio may not be a good predictor of 24-hour urine uric acid excretion. However, the random urine UA/CR ratio 0.2 can be a useful predictor to screen the gouty patients who need to be treated with uricosuric drugs.
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