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두 개의 하이드로폰을 이용한 수중 음원 방향 추정 및 위치 추정 알고리즘
신재욱(JaeWook Shin),송주만(Ju-man Song),이석영(SeokYoung Lee),최현택(Hyun-Taek Choi),박부견(PooGyeon Park) 제어로봇시스템학회 2013 제어·로봇·시스템학회 논문지 Vol.19 No.8
For underwater vehicles, the use of sensors such as cameras and laser scanners is limited by the difference in environment compared to robots designed to work on dry land. In underwater environments, if use is made of sound signals, valuable information can be obtained. The most important application is the localization of underwater sound sources. The estimated location of a sound source can be used to control underwater robots or submarines. Thus, the purpose of this research is to estimate the source’s direction and location in a noisy underwater environment. The direction of the sound source is obtained using two hydrophones. Furthermore, if we assume that the robot or sound source is moving, the location of the sound source is estimated using more than two estimated directions. The feasibility of the developed algorithm is examined by experiments in a water tank and in the ocean.
볼테라 시리즈 입력을 이용한 냉연 산세 라인 산농도 모델 추정
박찬은(Chan Eun Park),송주만(Ju-man Song),박태수(Tae Su Park),노일환(Il-Hwan Noh),박형국(Hyoung-Kuk Park),최승갑(Seung Gab Choi),박부견(PooGyeon Park) 제어로봇시스템학회 2015 제어·로봇·시스템학회 논문지 Vol.21 No.12
This paper deals with estimating the acid concentration of pickling process using the Volterra inputs. To estimate the acid concentration, the whole pickling process is represented by the grey box model consists of the white box dealing with known system and the black box dealing with unknown system. Because there is a possibility of nonlinear term in the unknown system, the Volterra series are used to estimate the acid concentration. For the white box modeling, the acid tank solution level and concentration equations are used, and for the black box modeling, the acid concentration is estimated using the Volterra Least Mean Squares (LMS) algorithm and Least Squares (LS) algorithm. The LMS algorithm has the advantage of the simple structure and the low computation, and the LS algorithm has the advantage of lowest error. The simulation results compared to the measured data are included.
Vibrio cholerae non - O1 과 Vibrio mimicus 의 생잔에 대한 염도와 온도의 영향
장수현,송대진,양송주,신일식,김영만 ( Soo Hyun Chang,Dae Jin Song,Song Ju Yang,Il Shik Shin,Young Man Kim ) 한국수산과학회 1995 한국수산과학회지 Vol.28 No.1
Vibrio cholerae non-O1 and Vibrio mimicus, food poisoning bacteria, have detected frequently in fresh water and brackish water. To estabilsh prevention measures of food poisoning outbreak by these bacteria, the adaptability and population changes were examined in fresh water, brackish water (10‰ NaCl) and seawater (30‰ NaCl). Both species poorly survived as temperature increased regardless of water types employed. However, survival time was the shortest in fresh water and longest in seawater at 4℃. In case of brackish water, the bacteria survived best at 15℃ and population were varied only in small numbers. Any significant difference was not observed to both species with respect to water types and temperatures except V. mimicus survived about 5∼6 days longer in brackish water. In conclusion, V. cholerae non-O1 and V. mimicus were not likely to be recovered in normal fresh water, brackish water and seawater, and both biological and physicochemical factors could affect survival of these species.
재공학 환경에서 적용성 향상을 위한 디자인 패턴의 UML 표현
최성만(Seong-Man Choi),김송주(Song-Ju Kim),유철중(Cheol-Jung Yoo),장옥배(Ok-Bae Chang),이정열(Jeong-Yeal Lee) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.1B
본 논문은 재공학 환경에서 기존의 디자인 패턴을 적용성 향상을 위해 UML로 표현하였으며, 대상으로는 디자인 패턴 중에서 Strategy pattern과 Visitor pattern을 이용해 보았다. Strategy pattern에서는 {variation}과 {incomplete}를 이용하였다. {variation}은 메소드 구현시 패턴을 캡슐화하여 다양하게 변경될 수 있도록 하였다. 또한, {incomplete}는 주어진 관계를 만족하는 새로운 클래스가 패턴 인스턴스화 동안에 추가될 수 있도록 하였다. Visitor pattern에서의 {extensible}은 클래스 인터페이스가 패턴을 캡슐화하고 있는 개념으로 다양하게 변경될 수 있도록 하였다. 즉, 클래스 인터페이스는 패턴 인스턴스화에 의존적이며, 새로운 메소드와 속성을 클래스가 기능적으로 확장할 수 있는 기능을 갖는다.
금강 하구의 Vibrio cholerae non - 01 과 Vibrio mimicus 의 생태
장수현,송대진,양송주,신일식,김영만 ( Soo Hyun Chang,Dae Jin Song,Song Ju Yang,Il Shik Shin,Young Man Kim ) 한국수산과학회 1995 한국수산과학회지 Vol.28 No.1
To study ecological properties of Vibrio cholerae non-O1 and Vibrio mimicus which have been described as new food poisoning bacteria recently, the influence of factors such as temperature, salinity, pH and chemical oxygen demand (COD) on detection rate and density of these bacteria were evaluated. Fifty four seawater samples and 49 bottom deposit samples from estuary of Kum river from March 26th, 1993 to February 22nd, 1994 were used for this study. The detection rate of V. cholerae non-O1 were 16.7 for seawater and 10.2 for bottom deposit, respectively. The total detection rate of V. cholerae non-O1 (11.7%) was a little higher than V. mimicus (10.7%.) Both V. cholerae non-O1 and V. mimicus were mainly detected in estuary water of which showed temperature 24℃ above and salinity 10‰ below. These bacteria were also detected in bottom deposit on January when the water temperature was 3.5℃. From these results, we supposed that temperature, salinity and organic material were important factors to growth of V. cholerae non-O1 and V. mimicus. V. cholerae non-O1 might be grown better than V. mimicus under the fluctuating aquatic environmental condition such as salinity.
굴곡성 기관지경을 통한 겸자 생검술과 냉동 생검술의 비교
김재현 ( Jae Hyun Kim ),최정민 ( Jung Min Choi ),송성은 ( Sung Eun Song ),이은미 ( Eun Mi Lee ),이송주 ( Song Ju Lee ),옥철호 ( Chul Ho Oak ),장태원 ( Tae Won Jang ),정만홍 ( Man Hong Jung ),장희경 ( Hee Kyung Jang ) 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.66 No.2
연구배경: 냉동 생검은 극저온으로 암 조직을 얼려 조직의 괴사를 만들어 검체를 채취할 수 있는데 출혈이 적어서 많은 양의 조직을 한번에 채취할 수 있다는 장점이 있다. 본 연구에서는 기관지 내 병소가 있는 폐암 환자에서 굴곡형 기관지 내시경을 이용하여 겸자 생검과 냉동 생검을 시행하여 얻은 각각의 조직의 특징을 비교하였고 냉동 생검을 시행하여 얻은 조직을 통해 항암제 감수성 검사를 위한 배양 결과 및 혈관 내피 세포 성장인자(vascular endothelial growth factor, VEGF)의 발현 여부를 연구하였다. 방법: 고신대학교 복음병원에서 폐암으로 진단되어 시행한 기관지경에서 용종성 병병이거나 결절형 돌출성병변이 관찰된 환자 30명을 대상으로 하였다. 냉동 생검은 기관지경을 병소에 삽입한 후 먼저 겸자 생검을 시행하였고, 이후 겸자 채널을 통해 냉동 탐침을 삽입하여 병소에 접촉시켰다. -80℃로 8초간 급속 냉동한 후 조직을 떼내어 내시경과 함께 빼낸 뒤 채취하였다. 결과: 겸자 생검 조직과 냉동 생검 조직의 평균 크기는 각각 2.0±1.2 mm, 6.0±3.0 mm였다. 조직의 정확한 진단이 된 경우는 겸자 생검 조직에서 23예(76%), 냉동 생검 조직에서 27예(90%)였다. 겸자 생검에서 확진이 되지 않았던 7예 중 5예에서 진단이 가능하였다. 조직의 분화도 결정은 겸자 생검 조직과 냉동 생검 조직에서 각각 15예, 25예에서 가능하였다. 냉동 생검을 통해 얻은 조직은 총 5예에서 항암제 감수성 검사를 의뢰하였고 전 예에서 배양이 이루어져 적절한 감수성 검사를 시행할 수 있었다. 또한 냉동 생검을 통해 얻은 조직 중 2예에서 VEGF의 발현 정도를 관찰하고 판정할 수 있었다. 결론: 굴곡형 기관지 내시경을 이용한 냉동 조직 생검은 기존의 겸자 생검에 비해 비교적 큰 조직을 얻을 수 있는 안전하고 유용한 방법이 될 수 있을 것이며 또한 항암제 감수성 검사를 위한 검체 확보 및 VEGF의 발현 정도를 관찰하고 판정하는 데에도 도움이 될 것으로 생각된다. Background: A forceps-biopsy is performed to acquire tissue from patients with an endobronchial carcinoma using a flexible bronchoscope. Recently, a cryo-biopsy has also been used to acquire tissue samples. Cryo-biopsy is the diagnostic application of extreme cold for the local destruction of abnormal living tissue. This technique is safe, with no radiation danger, no risk of electrical accidents, and a little risk of bleeding. This study compared a forceps-biopsy with a cryo-biopsy using a flexible bronchoscope, and examined the chemosensitivity and level of VEGF (vascular endothelial growth factor) in the specimens obtained from the cryo-biopsy. Methods: We present a prospective study of 30 consecutive patients who underwent a forceps-biopsy between January 2007 and October 2007 with a mean age of 62.1 years and a male:female ratio of 5:1. A flexible bronchoscope was inserted to the area of the abnormal lesions, and a cryo-probe was then applied through the working channel of the flexible bronchoscope. A temperature of approximately ?80 was delivered to the tumor site for 8 seconds. The cryo-biopsy was performed after destroying the tumor mass. Results: The mean size of the tissue from the forceps-biopsy and cryo-biopsy were 2.0±1.2 mm and 6.0±3.0 mm. A chemosensitivity test was performed on 5 specimens obtained using cryo-biopsy and the level of VEGF was examined in 2 specimens obtained from a cryo-biopsy. There were no side effects in either group. Conclusion: Cryo-biopsy using a flexible bronchoscope is a safe and effective technique for acquiring tissue samples.
세자리 Schiff base Cobalt(Ⅱ)와 Nickel(Ⅱ) 착물들의 합성과 전기화학적 성질
정만태,이송주,채희남,정병구 광주보건대학 1994 論文集 Vol.19 No.-
Co(Ⅱ) and Ni(Ⅱ) complexes containing tridentate Schiff base ligand SOIPH [salicylidene-o-iminopyridine] derived from salicylaldehyde with 2-aminopyridine were synthesized. These complexes were characterized 표 elemental analysis, thermogravimetric analysis(T.G.A.), solution conductivity, and IR and UV-visible spectra. It was found that Co(Ⅱ) and Ni(Ⅱ) complexes had a 2 : 1 Schiff base ligand to metal(Ⅱ) ratio and were octahedral configuration. The redox processes of these complexes in DMF and DMSO containing 0.1M TEAP as supporting electrolyte were investigated at glassy carbon electrode by cyclic voltammetry (CV) and at HMDE(hanging mercury drop electrode) by differential pulse polarographic (DPP) technique. Reduction of Co(Ⅱ) complex was two steps, whereas Ni(Ⅱ) complex was one step. Reduction of these complexes observed as one electron process irreversibly and diffusion- controlly. Reduction of the Co(Ⅱ) complex was observed positive potential than Ni(Ⅱ) complex.