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      • lex를 이용한 한국어 수식표현 인식

        김재훈,백억종 한국해양대학교 산업기술연구소 2003 연구논문집 Vol.20 No.-

        본 논문에서는 한국어 문서에 포함된 수식표현의 인식 방법에 대해서 기술한다. 수식표현 인식은 부분 구문분석의 한 부분이며 정보추출 시스템과 질의응답 시스템 등에 사용될 수 있으며, 이들의 공통적인 특징은 신속하고 정확해야 한다는 것이다. 본 논문에서는 이를 위해서 Unix^TM 도구인 lex를 사용한다. 본 논문의 시스템을 평가하기 위해서 자체 개발된 신문 말뭉치를 사용하였으며, 이 말뭉치에서 재현율은 90.8%이고 정확률은 86.9%이다. 다른 여러 실험을 통해서 본 시스템은 정확하고 신속하게 처리되고 있음을 알 수 있었다. In this paper, we describe the recognization of Korean numerical expressions as a part of partial parsing from text. Numerical expressions can be used in several systems such as information extraction systems and question-answering systems. One of desired characteristics of these systems is the fastness. To achieve this goal, we use lex. a Unix ^TM tool, that is an implementation of finite-state automata. To evaluate our system, we used a newspaper collection. We achieved the recall of 90.8%, and the precision of 86.69%. We observed that the system is fast and correct through several experiments.

      • PCR을 이용한 Rat 기관지 세척액에서의 Pneumocystis carinii DNA의 검출 : 기초실험 A pilot study

        김주옥,홍석철,한표성,이종진,김선영,이영하,신대환 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.1

        Background: Pneumocystis carinii (PC) is a opportunistic pathogen causing serious pneumonia (Pneumocystis carinii pneumonia : PCP) in immunosuppressed patients including AIDS. Laboratory diagnosis of PCP is dependent on microscopic demonstration of the PC by using cytochemical staining or by immunocytochemical staining with monoclonal antibodies. However, these staining methods are not highly sensitive. The development of the polymerase chain reaction (PCR) has made it possible to detect very small numbers of pathogens in clinical specimens. To establish the usefulness of PCR for detection of PC DNA, We performed PCR as a pilot study. Methods: PCP was induced on Spraque-Dawley rats with prednisolone 5mg IM twice a week. Bronchial lavages, impression smears, and permanent sections were performed from the 3rd week to 7th week of cortisonized rats. PC DNA was extracted with bead beater / 10% CTAB method. Results: Impression smears showed PC cyst after the 4th week (100%, 28/28 rats), and permanent sections showed 27/28 rats. Control rats showed some PC cysts (2/7). PCR result was positive only one case among the 6th week rats (1/7), But positive 6 cases at the 7th week rats, (6/7). Among control rats. 2 cases were positive (2/7). ??This data is a pilot study for the PC DNA detection using a PCR. PCP were successfully cortisonized rats. If adequate bronchial washing technique will be used, PCR can be a sensitive for PC DNA detection.

      • 객혈의 임상적 고찰 및 기관지 내시경의 역할

        김주옥,이종진,서지원,김선영 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

        118 patients with hemoptysis were reviewed retrospectively to identify etiologic factors, clinical features, and treatment and to evaluate the usefulness of fiberoptic bronchoscopy. 63 cases (53.4%) were blood-tinged sputum, 2 cases (1.7%) were more than 600ml a day in amount of hemoptysis. Pulmonary tuberculosis was 37 cases (31.36%), the most common cause of the known etiologic factors. Lung cancer was 6 cases (5.09%). 6 patients (5.09%) were treated with bronchial artery embolization, 1 patient (0.85%) treated with right lower lobectomy. 1 (4.3%) of 23 patients with hemoptysis and normal chest roentgenogram was found to have lung cancer. We suggest that in patients with hemoptysis and normal chest roentgenogram, routine fiberoptic bronchoscopy is not necessary to exclude malignancy.

      • 잡음환경에서 구름 볼 베이링의 결함검출을 위한 ALE의 적용

        김영태,최만용,김기복,박해원,박정학,김종억,류준 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

        It is very important to detect the bearing defects in rotating machinery since the critical failure of bearing cause a machinery shutdown. However it is difficult to detect the vibration signal resulting from the initial defects of bearing because of the high level of broadband noise. A signal processing technique, called the adaptive line enhancer(ALE) as one of adaptive filter, is studied in this work. This technique is to eliminate broadband noise without a prior knowledge of the noise and signal characteristics. Also we propose the optimal methods for selecting the three main ALE parameters such as correlation length, filter order and adaptation constant used in the adaptative process. Vibration signals for three abnormal bearings, including inner and outer raceways and ball defects, were acquired from Anderon(angular derivative of radius on)meter. The experimental results showed that the proposed technique can reliably detect the bearing defective signals masked by broadband noise.

      • KCI등재

        볼 베어링의 결함검출을 위한 Adaptive Line Enhancer의 적용

        김영태,최만용,김기복,박해원,박정학,김종억,류준 한국공작기계학회 2005 한국생산제조학회지 Vol.14 No.2

        The early detection of the bearing defects in rotating machinery is very important since the critical failure of bearing causes a machinery shutdown. However it is not easy to detect the vibration signal caused by the initial defects of bearing because of the high level of random noise. A signal processing technique, called the adaptive line enhancer(ALE) as one of adaptive filter, is used in this study. This technique is to eliminate random noise with little a prior knowledge of the noise and signal characteristics. Also we propose the optimal methods for selecting the three main ALE parameters such as correlation length, filter order and adaptation constant. Vibration signals for three abnormal bearings, including inner and outer raceways and ball defects, were acquired by Anderon(angular derivative of radius on) meter. The experimental results showed that ALE is very useful for detecting the bearing defective signals masked by random noise.

      • 급성 세균성 감염증에 대한 Cefotetan(Yamatetan^ⓡ)의 임상적 효과

        김주옥,안원전,박종훈,노흥규,박종우 충남대학교 의과대학 지역사회의학연구소 1987 충남의대잡지 Vol.14 No.1

        Total 20 cases of infectious diseases were treated with Cefotetan at the Dept. of internal medicine, Chung Nam National University Hospital, Dae Jeon, Korea, from January 1985 to April 1985. Among 20 cases, 6 were the patients with acute pyelonephritis, 7 were pneumonia, 2 were acute cholecystitis, 2 were chronic bronchitis, 2 were cellulitis and 1 was lung abscess. The response was good in 16 cases, and poor in 4 cases. The laboratory tests were normal except I which was reversible. (mild elevation of SGOT and SGPT) The side effects were noted in 2 cases, such as skin eruption and drug fever, which were improved with supportive care. Cefotetan was thought to be useful against acute bacterial infections of respiratory, urinary, biliary tracts and cutaneous tissue.

      • 김(海苔) 貯藏中의 褐變反應

        金淳玉,李康鎬,李鍾祜 釜山水産大學校 1975 釜山水産大學 硏究報告 Vol.14 No.2

        With respect to sugar, amino acid, pigment and other components in dried laver, every individual component has been known so get lost during the storage. In this study, th spectral property of the brownish pigment appeared in the water dialyzed fraction from laver extracts, which might be produced by such reactions as degradation and interactions among the components was investigated. Futhermore, the related reaction for the formation of browning pigment like nonenzymatic browning and tendency of the reaction under different storage conditions were also discussed. In the analysis of absorption spectra of the brownish pigment, and absorption maximum at 320 nm and two absorption zones in between 440 to 460nm, and 500 to 560 nm, while the peak at 320 nm reduced with the progress of browning but two others showed gradual increase. the absorption at 440 to 560 nm corresponded to the wavelengths generally applied to the determination of browning. From the results of the model system where xylose or glucose added alone or both (1:1 mole ratio) to the extracts of laver, the addition of sugar and amino acid, the increase of heating temperature, and the prolongation of reaction time activated markedly the reaction rate as generally encountered in the Maillard type browning reaction and so the system was progressively affected by pH increase of 3 to 6 and showed a reduced rate of reaction by th addition of inhibitor that the browning of laver is elucidated as the sugar-amino reaction. The 20 to 30 percent loss in both amino acid and reducing sugar content during 2 month storage was closely correlated with the increase of absorbance at 440 nm, which supports that the consumption of sugar and amino acid was attributed to the formation of brown pigment. In the observation of spectral changes when stored under four different conditions where at water activity of 0.065 and 0.76, 30℃ and room temperature respectively, the reaction rate was decisively affected by the water activity rather than the storage temperature. In consideration of above results, it is concluded that the brown pigment in laver extracts is formed by sugar-amino reactions and that the ambient humidity during the storage is assured to influence the rate of browning reaction.

      • 호흡기 감염에서 Sparfloxacin 의 임상적 유용성에 대한 Enoxacin과의 비교 검토

        김주옥,김선영,김관형,서지원,박석영,이종진,박성학 대한감염학회 1995 감염 Vol.27 No.4

        목적:폐렴, 기관지염, 만성기관지염에서 fluoroquinolone제제로서 항균력이 강하고, 혈중 반감기가 길고, 객담과 조직내 농도가 높은 sparfloxacin의 안전성과 효과를 enoxacin과 비교하기 위해 본 연구를 시행 하였다. 방법:1994년 10월부터 1995년 4월까지 충남대 부속병원과 대전 성모병원에 내원한 폐렴, 급성기관지염, 만성기관지염이 급성으로 악화된 환자 63명을 대조군(32명)(enoxacin 100 mg 1일 3회 경구투여), 실험군(31명)(sparfloxacin 200mg 1일 1회 경구투여)으로 나누어 임상증상, 세균학적 객담 검사, 혈액검사, 실험실내 항균력검사로 그 치료율 및 안전성을 비교하였다. 결과: 1) 임상종합 평가, 세균학적 균소실, 안전성, 유용성에서 두군간에 의미 있는 차이는 없었다. 2) 시험관내 항균력검사상 MIC가 실험군이 대조군보다 현저하게 낮았다.(p<0.05). 3) 경미한 두통, 식욕감퇴, 상복부 불쾌감, 설사등이 대조군 9예, 실험군 7예에서 발생하였고, 검사실 소견상 SGOT 혹은 SGPT 의 일시적 경미한 상승이 대조군 2명, 실험군 3명에서, 혈중 creatinine 상승이 실험군 2명에서 있었으나 경미하였다. 결론:이상의 결과로 sparfloxacin은 폐렴, 급성기관지염, 만성기관지염의 악화에서 하루 한번 투여로 enoxacin 하루 3번 투여와 유사하게 효과적이고 안전하며, 시험관내 항균력이 enoxacin보다 월등히 우수하여 임상에서도 유용하게 사용될수 있을것으로 생각된다. Background: Sparfloxacin, a new oral quinolone, has a broad spectrum, potent antimicrobial activity, prolonged half life, high concentration in sputum. The clinical efficacy and safety of sparfloxacin have been reported by some previous clinical studies performed in Japan. The objectives of this study were to evaluate the clinical and antimicrobial efficacy of this drug in respiratory tract infections compared to those of enoxacin. Methods:We performed an open controlled, randomized study in 63 patients with acute bronchitis, pneumonia, and exacerbation of chronic bronchitis at Chung Nam University hospital and Dae Jeon St. Mary's hospital from October, 1994 to April, 1995. In the control group(n=32), 100 mg enoxacin was administered orally 3 times a day and in the test group(n=31), 200 mg sparfloxacin once a day. Results: The results were as follows; 1) There were no significant differences between the two groups in clinical efficacy, bacteriological finding, and usefulness. 2) Means and SD of MICs were 0.44±0.89 ㎍/ml in the control group, 0.13±0.24 ㎍/ml in the test group. There was a significant difference in MICs between the two groups(p<0.05). 3) Headache, epigastric discomfort, and loss of appetite were observed in 7 cases of the control group and in 9 cases of the test group, and transient elevations of hepatic enzyme in 2 cases of the control group, and in 3 cases of the test group. There was mild elevation of serum creatinine in 2 cases of the test group. Those laboratory abnormalities by therapy might be associated with their underlying diseases. There were no significant adverse effects caused by the drugs Conclusion:In conclusion, sparfloxacin of 200 mg once a day was as effective and well tolerated as enoxacin of 100 mg three times per day in the treatment of respiratory tract infections. Sparfloxacin is more potent antibiotics because MICs of sparfloxacin were very lower than those of enoxacin.

      • 중합효소연쇄반응을 이용한 도말양성 폐결핵 환자에서의 결핵균 DNA 검출방법에 관한 연구

        이종진,김애경,조해정,한표성,홍석철,김주옥,김선영 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

        Polymerase chain reaction (PCR) is the most sensitive and rapid method for the diagnosis of M.tuberculosis infection. Many reports have shown different methods for mycobacterial DNA extraction, but revealed many differences in simplicity and time-consumption. We studied which method was the best among 7 different ones for DNA extraction from 32 smear-positive sputa, using PCR of targeting 123bp DNA fragment of IS6110. The methods were the following : SDS-Microwave oven method, NaOH Lysis method, Triton X-100, Proteinase K method, Lysis buffer method. SDS-Proteinase K method, Bead Beater method, and Bead Beater/CTAB method. The amplification products were identified by electrophoresis on ethidium bromide-stained agarose gels, and confirmed by restriction enzyme, Southern blot hybridization, and DNA sequencing. All 32 cases were positive (100%) by the 7 different methods. It took 1 hour or more to detect DNA in SDS-Microwave oven method, NaOH Lysis method, and Bead beater/CTAB method. It took 2 hours or less in the others. SDS-Proteinase K method and Bead Beater/CTAB method were simpler and more convinient than the others. These results suggest that SDS-Proteinase K method and Bead Beater/CTAB method might be better than the others for the extraction of mycobacterial DNA in terms of simplicity and time-consumption, although all the methods were sensitive.

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