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.

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.

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.

Brushless 同期發電機의 特性에 關한 硏究 : 主로 自勵型 Brushless 單相同期發電機의 應用에 對하여

宋鐵,鄭憲相,李愚宣 朝鮮大學校 1977 綜合論文集 Vol.1977 No.-

As an excitation system of the synchronous generator, an exciter which is directly connected to the main shaft, comprising some restrictions by the increasing capacity under the condition of commutation, has generally been used. In order to solve the restriction problem as well as to operate the generator without difficulty, it is desired to get rid of electrical sliding contacts such as brush and slip ring. To eliminate these electrical sliding contacts, several types of brushless generators have been developed, one of which being understood to be the self-excited brushless single-phase synchronous generator. In this paper, the results of experimental test about the characteristics are analyzed. There are not a few possibilities in the CT connection wherein the load current affects the exciting current.

송유관 요율결정 지원시스템의 개발 및 활용

송성헌,김우제,이문배 한국경영과학회 1999 經營 科學 Vol.16 No.1

Pipeline is an important transportation mode for oil products The pipeline transportation and storage rates affect the pipeline usage, and the pipeline usage also affects the transportation revenue and operating costs of the pipeline The purpose of our study is to develop a decision support system simulating pipeline transportation and storage rates for maximizing the utilization and profitability of the oil pipeline and apply it to the real situation To do this, a simulation model to help the decision maker decide the rates of the oil pipeline is first proposed Second, a simulation program is developed, which enables the user to evaluate the various scenarios of oil transportation and storage rates Finally, this program is applied to the case study of oil industry in Korea

SCM에서 구매자-공급자 파트너쉽의 관게특성

송우용,조대우 국제무역학회 2001 국제무역연구 Vol.7 No.2

기업간 경쟁이 심화되고, 고객의 요구가 다양해지면서 기업들은 경쟁우위를 강화시키기 위한 전략수단으로 파트너십을 이용한 공급사슬의 통합적 관리에 관심을 기울이고 있다. SCM은 원자재 공급으로부터 운송, 제조, 저장, 판매에 이르는 물류흐름과 신제품개발, 고객서비스 등의 공급사슬 프로세스를 근본적으로 재설계하는 정보기술 지향적 물류시스템으로써 다양한 파트너십이 개재된다. SCM을 위한 파트너십은 이질적인 기업간 공동활동으로 인하여 적지 않은 관리적 노력이 요구된다. 따라서 SCM이 성과를 거두기 위해서는 파트너관계의 효과적인 관리가 이루어져야 한다. 본 연구는 SCM에서 구매자-공급자 파트너십의 관계특성을 밝히기 위하여 환경적 가변성, 환경적 요구, 몰입, 신뢰, 협력 등의 영향요인이 정보통합, 운영통합으로 대표되는 파트너간의 통합 및 SCM의 성과에 관한 관계모형을 제시하였다. SCM Stresses that maximizing service to customers of choice at the lowest cost requires a strong commitment to close relationship among trading partners. And SCM require movement away from arms length interactions toward longer term, partnership type arrangements to create highly competitive supply chain. Int is generally believed that increased collaboration among supply chain participants leads to lower total cost and enhanced service performance. This study provide a conceptual model and research hypotheses which focused on integration of information system and operational linkage among partner in buyer-seller partnership.

수치해법에 의한 Dolph-Chebyshev배열 안테나의 전류 계산에 관한 연구

송우영,이명호 淸州大學校 1985 論文集 Vol.18 No.2

This paper shows a method for calculating the currents of Dolph-Chebyshev array antennas using the first order simultaneous equations by numerical methods. In order to solve the first order simultaneous equations, Gauss-Jordan Elimination with Scaled Column Pivoting method is used. And we derive the relations between matrix elements and array factor. As a results, this method is a useful method for calculating the currents of Dolph-Chebyshev array antennas.

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.

광양항 컨테이너부두 배후부지 개발방향과 활성화방안

송성헌,김우제,장은령,이정욱 한국로지스틱스학회 1998 로지스틱스연구 Vol.6 No.2

이 논문의 목적은 광양항 컨테이너부두 배후부지의 개발방향과 활성화 방안을 제시하는 것이다. 이를 위해서 우선, 배후부지의 개발과 운영에 관련된 계획, 법규 및 국내외 사례를 검토한 후, 배후부지 유치대상 기능과 주요시설을 규명하고, 개발 기본구상도와 단계별 개발계획안을 제시한다. 배후부지 개발사업의 활성화를 위해 정부의 정책적 지원방안 및 관련조직간의 협조방안과 배후부지 입주업체의 유치방안을 제시한다. 아울러 배후부지 개발의 기대효과 및 최근 경제상황에 따른 건의사항을 제시한다. In this paper we try to make suggestions for the development and promotion for the hinterland of the Kwangyang container port. First, we investigated the development plan, the law and several cases related to the development and operation of the port hinterland. Then we propose a scheme to develop the hinterland and define major functions and facilities for the hinterland. For the promotion of the hinterland, we suggest several roles of the government organizations to activate functions of the hinterland and ideas to attract customers. Finally, we suggest an expected effect according to the development of the hinterland and propose a proper way of the development considering the recent Korean economic situation.

추골동맥 손상을 동반한 안면과 경부의 관통성 외상 치험예

송우식,김인권,이상현,황윤정,안정용 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.5

With the exception of gun shot wound, the incidence of penetrating injury of face and neck areas nonorganic foreign bodies is relative low. But the diagnostic evaluation and therapeutic management of penetrating facial wounds need careful decision, when the anatomic proximity of the major vessels and nerve is considered. Penetrating facial trauma with concomitant vascular injury present challenging problems, the immediate complication of this vascular injury are severe bleeding, hematoma formation, shock, obstruction of airway. The vascular injury is conformed by angiography. In this reprort, a industrial tool(long tack) fired by explosive air is penetrated into face and to neck. In angiograms penetrating injury of the vertebral artery is detected. We performed the embolization of the vertebral artery with coils and manual removal of the foreign body without any complication was followed.