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      • Characterization of cricket song patterns and the behavior observation of Teleogryllus emma (Orthoptera:Grylloidea)

        Ji Chang Woo,Kim Nam-Jung,Lee Sang-Guei,Hwang-Yong Kim,Choi Hoon-Sik,Song In-Sun,Ko Jee Sun 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05

        We analyzed the chirp sound and behavior of Teleogryllus emma with observation system, which was consisted of computer, ccd-camera and microphone. Computational methods of wavelet transformation and Self-Organizing Maps (SOM) were utilized to characterized the chirp sound of insect species for automatic counting in this study. Wavelets were initially applied to feature extraction of the chirp sound. Wavelet coefficients were accordingly calculated based on the basis function (e.g., Morlet). The obtained coefficients were subsequently provided to count number of chirps in each song. Sound structure of insect specimens consisted with long chirp and short chirp and the patterns of song were grouped by frequency of long chirp and short chirp. The song patterns of insect specimens were divided by Self-Organizing Map (SOM) that was used number of chirp as input data. Application of computational methods to automatic detection of chirp sound was further discussed for obtaining objective assessment in behavior science.

      • KCI등재

        북한문학 연구의 현황과 과제 - 북한 시문학 연구를 중심으로

        남송우(Nam Song-Woo) 한국문학회 2005 韓國文學論叢 Vol.39 No.-

        This thesis is about the present position of research of North Korean Poetry. It put much importance on the aspect of transfiguration of a point of view of the research of North Korean Literature. It can be named as the progress from the totalitarian through the immanent and the immanent- critical, to the comparative social aspect. These aspects were appeared as the comprehension and introduction of North Korean poetry, the analysis of it with critical distance, and the comparative study of South and North Korean poetry. This change of standpoint was possible since North Korean Literature were regarded as a national literature and further more as unification literature or integration literature of both nations. Despite of transformation of the aspect, however, there has been yet the mixed loading of studies in the immanent and the immanent-critical approaches. This implies that there are still lots of documents of North Korean poetry yet to be introduced as they are. This is the task of which has to be solved thoroughly. Nevertheless there is the progress of research of North Korean poetry and the emergence of the treatise of works and writers of North Korean, it is still in need to write newly about the history of North Korean poetry on these basis. It produces not only contrary evidence of the plentiful existence of objects of research of North Korean poetry but also the tasks of research of them in various points of view.

      • KCI등재

        유산소성 운동이 노인들의 신체조성과 등속성 슬관절 근력 및 요부근력에 미치는 영향

        한종우(Jong Woo Han),이상석(Sang Sug Lee),송분도(Bun Do Song),지용석(Yong Suk Ji),김난수(Nan Su Kim),서경호(Kyeong Ho Seo) 한국사회체육학회 2000 한국사회체육학회지 Vol.13 No.-

        This study was designed to investigate the effect of a year aerobic exercise training on body composition, isokinetic knee and trunk muscular strength of elders. The subjects for this study were eighty healthy elderly people who were members of seniors tower at Song-Do Hospital and didn`t have any history of cardiorepiratory disease. Subjects have been trained three times a week for a year. The exercise program was made up of a 15-minute warm-up, cool-down. Stretching was performed every eight minutes for the prevention of injuries which could occur during the main exercise and quick recovery of the used muscle. Aerobic training was performed for each 15-20minutes using the treadmill and cycle ergometer at the intensity of 50-70% HRmax. For the data, all the measurements were represented by mean and standard deviation using SAS package(version 6.12). Statistical techniques for data analysis were paired t-test to determine the difference between pre and post exercise program. The 5% level of significance was used as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study. 1. There is a statistically significant difference in the VO_2max, fat mass, lean mass and %body fat both old men and women after a year training. 2. There is not a statistically significant difference in the weight, WHR and thigh circumference both old men and women after a year training. 3. There is a statistically significant difference in the right knee flexor/extensor peak torque, peak torque % body weight, total work and total work % body weight both old men and women after a year training. 4. There is a statistically significant difference in the left knee flexor/extensor peak torque, peak torque % body weight, total work and total work % body weight both old men and women after a year training.

      • 열처리에 따른 Cd₁-xZnxS/In 박막의 광학적 및 전기적 특성 분석

        송우창,이경호,심상흥,이상교,심재선,박종국 三陟大學校 2002 論文集 Vol.35 No.-

        In this thesis, effects of the thickness of indium films and the annealing temperature on optical and electrical properties of chemically deposited CdZnS films for the efficiency of the Cd1-xZnxS/CdTesolar cells were investigated. To improve the electrical conductivity of Cd1-xZnxs films, thin indium films(10-4Onm thickness)were evaporated on the suface of Cd1-rZnxs films. Experimental parameters such as indium film thickness, Zn mole fraction, and the annealing temperature in terms of structural and electrical properties of Cd1-xZnxs films were investigated. The diffusion process was carried out by heating the sample in air at 150-550℃ for 20 minute As the indium film thickness is increased, the resistivity decreases and the lowest value(0.3 O -cm)is obtained for Cd1-xZnxs films annealed at 450℃ with 40nm of the thickness.

      • Ga_(0.6)Sb_(1.4)Se₃單結晶의 光傳導度 特性

        宋燦日,劉炳守,李愚宣,金南伍,金亨坤 조선대학교 에너지.자원신기술연구소 2002 에너지·자원신기술연구소 논문지 Vol.24 No.2

        Ga_(0.6)Sb_(l.4)Se₃single crystals were grown by the Bridgman technique method, These single crystals had orthorhombic structure, and lattice constant and electric conduction type of Ga_(0.6)Sb_(l.4)Se₃single crystals was a = 11.860Å , b = 12.057Å, c = 4.103Å and p-type, respectively. Direct band gap of Ga_(0.6)Sb_(l.4)Se₃single crystals obtained from optical absorption spectrum were 1.17 eV. Photoconductivity spectrum measured at 10K showed that the photoconductivity peak in Ga_(0.6)Sb_(l.4)Se₃single crystals was located in 960 nm.

      • 효소가수분해에 의한 볏짚으로 부터 글루코오스 생성 : 저농도 기질의 가수분해를 중심으로 In the range of low substrate concentration

        송동윤,김우식,유인상 연세대학교 산업기술연구소 1987 논문집 Vol.19 No.1

        The Enzymatic hydrolysis of pretreated rice straw cellulose was investigated to produce glucose by cellulase and β-glucosidase. The reaction mechanism was studied in a batch reactor at low concentrations (1-5 w/v%) of rice straw and continuous hydrolysis was performed in a C.S.T.R. By using 19.2 unit/mℓ cellulase, pretreated rice straw (4%) was converted to gluclse up to 20 mg/mℓ after 1hr reation time at 50℃ and pH 4.4. The Yield was 94%. When the rice straw was hydrolyzed by cellulase and β-glucosidase, reaction kinetics were showen as Michaelis-Menten equation with V?????? = 0.0688/L.min and Km = 3.4g/L. In the continuous hydrolysis, the yield was 49% at dilation rate 0.24h?? when the rice straw concentration was 5%.

      • 일개 대학병원에서 일년간 분리된 반코마이신 내성 장구균의 임상 분자역학적 연구

        송진영,김창억,김성욱,우흥정,김미란,이규만,이란,장미화,정희진,김우주 대한화학요법학회 2001 대한화학요법학회지 Vol.19 No.4

        목적 : 한강성심병원에서는 2000년 3월 반코마이신내성 장구균이 처음 분리되어, 원내전파를 막기 위한 노력을 하였으나, 분리가 지속되었다. 따라서 이에 대한 좀더 자세하고 객관적인 자료를 얻기 위해 본원에서 분리된 반코마이신내성 장구균에 대한 임상분자 역학적 연구를 시행하게 되었다. 방법 : 2000년 3월부터 2001년 2월까지 한림대학교 한강성심병원에서 분리된 장구균을 대상으로 디스크 확산법, 최소발육억제 농도등의 측정을 통해 반코마이신 내성여부를 확인하였으며, 반코마이신내성 장구균을 대상으로 PFGE를 시행하여 형별 분석을 하였다. 결과 : 분리된 균주는 총 32균주로 모두 E. faecium이었다. 항생제 내성 검사 결과 모두 Van A형이었다. PFGE 결과 1a형이 8검체, 1b형이 5검체, 2a형이 4검체, 2b형이 4검체, 3a형이 2검체, 3b형이 5검체였고, 그 외 4, 5, 6형이 각각 1검체씩이었다. 총 32균주 중 56%(18/32)의 균주가 같은 시기, 같은 병실에서 동일한 PFGE 형을 보이면서 분리되었다. 결론 : 반코마이신내성 장구균의 PFGE 분석 결과 여러 종류의 반코마이신내성 장구균이 유행하였음을 알 수 있다. 그러나 같은 기간, 같은 병실에서 분리된 균주의 PFGE 형이 같은 것이 상당수 있었다. 이는 반코마이신내성 장구균의 원내 전파가 있었음을 의미한다. 따라서 반코마이신내성 장구균의 전파의 발생 및 전파 방지를 위해서는 보다 효과적인 감염관리 활동이 필요할 것으로 생각된다. Background: Vancomycin-resistant enterococci(VRE) have been a rising problem worldwide. In March 2000, VRE was first isolated from a patient in Hangang Sacred Heart hospital. Although efforts to prevent transmission of VRE were performed, isolations continued. So molecular epidemiological study of VRE was done. Method : The minimal inhibitory concentration(MIC) to vancomycin and teicoplanin, and pulsed field gel electrophoresis(PFGE) pattern of VRE isolated from March 2000 to February 2001 were evaluated. Results : 32 VRE were isolated. All of the VRE were Enterococcus faecium and showed Van A resistance phenotype. We found out that a significant number of VRE isolated during same period and in same room, were same PFGE patterns. (18 cases/ 32 isolates= 56%) Conclusion: This study demonstrated the spread of VRE of same PFGE patterns. It suggests the nosocomial spreads of VRE.

      • 개에서 교통사고에 의한 폐좌성 1례

        송우리,이시예,신에스더,박희서,정성목,송근호,김명철 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-

        A 4 years old, mixed male dog with a history of traffic accident was presented to the Veterinary Medical Teaching Hospital of Chungnam National University with tachypnea and respiratory distress. Physical examination showed that the dog was auscultated crackles sounds, dysynchronous abdominal breathing pattern, hemoptysis, hematuria, urodynia and right and left scleral congestion. Blood and blood chemical examination revealed that WBC, AST and ALT was highly elevated. Parenchymal pulmonary fluid and closed pneumothorax were observed by thoracic radiography. This case was diagnosed as pulmonary contusion. Intravenous fluid and oxygen was administered and also dexamethasone(1mg/kg, Ⅳ), furosemide(2mg/kg, Ⅳ), (ampicillin, 20mg/kg, Ⅳ) and meloxicam(0.2mg/kg, PO) were intravenously injected for 5 days. Abnormal clinical signs were disappeared after treatment.

      • KCI등재

        인터폴레이팅 수열과 H^∞의 실로프 경계

        송태성,박종열,홍우철 釜山大學校 師範大學 1980 교사교육연구 Vol.7 No.2

        Let H^∞ denote the Banach algebra of bounded analytic functions on the open unit disc and M(H^∞) denote its maximal ideal space. In this paper, we show that a sequence {z_(n)} of points in a Stolz angle formed by two rays from a point on the unit circle with |z_(n)|↑1 is an interpolating sequence if inf_n ρ(|z_(n)|, |z_(n+1)| >0, where ρ is the pseudohyperbolic metric defined on the open unit disc. The Shilov boundary ∂ of H^∞ is a proper subset of M (H^∞)-Δ(Δ is the set of all point evaluations) and ∂ can be identified with the maximal ideal space of L^∞. It is shown ∂ that is the set of all homomorphisms of H^∞ on which all interpolating Blasckke products have modulus 1.

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