친환경농업 농가 컨설팅에 대한 반응 조사

오환중,차광홍,정우진,김길용,박노동 全南大學校 農業科學技術硏究所 2011 農業科學技術硏究 Vol.46 No.-

The interactions between Environment-Friendly Agriculture Research Center (EFARC) and farmers in Jeonnam Province area who have practiced environment-friendly agriculture (EFA) under guidances of EFARC were investigated through enquete. The enquete was conducted during July - September, 2010. One hundred and eighty nine farmers responded all inquiries among 200 farmers. The main results are summarized as follows: 1. Rice was the predominant crop grown by farmers (49%), and the next major was hot pepper (12%). Most farmers (95.3%) have practiced environment-friendly agriculture at the levels of no-pesticide (55.6%), lower pesticide (32.8%), and organic (6.9%). 2. Major motivations of practicing EFA are for the production of safe foodstuffs (52.6%) and for an increase of income (40.1%). 3. Around 3 quarters of the environment-friendly agriculture products are shipped through Nonghyup, the cooperative marketing. The price margin between ordinary agriculture products and EFA products was of 5~10% for 63.5% farmers, of 10~20% for 14.3% ones, and of 20~30% for 14.8% ones. 4. Bottlenecks for practicing EFA are in the order of the unstability of shipping price (34.9%), cultivation techniques (20.1%), excess labor input (19.6%), and control of disease and insect pest (18%). 5. It turned out that more than 90% farmers who have practiced EFA under guidance of EFARC recognized the consulting activities of EFARC as to be helpful for them. 6. Establishment of national organizations which are specialized in consultation for EFApracticing farmers has been suggested.

두경부 악성종양 절제술 후 유리피판을 이용한 재건술 40예의 고찰

백정환,손영익,김성민,추광철,하범준,심영목 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

結晶學에 관한 論題(Ⅱ)

徐日煥,金光柱,徐鍾命,林星秀 충남대학교 자연과학연구소 1989 忠南科學硏究誌 Vol.16 No.2

금융산업의 전문경영인 신동혁의 경영이념

고광환 안양대학교 사회과학연구소 2002 社會科學硏究 Vol.9 No.-

For 35 years in 1964-1999, Shin Dong-Hyuck, the chief director of Han-Mi bank, a board of directors started work as a mere clerk of Han-il bank, also in February of 1999, he came the president of Han-Mi bank, in may of 2001 he came the chief director of Han-Mi bank. He is CEO who is working as the chief director of Han-Mi bank, as of September 2002. He is a excellent CEO who worked under the bad environments of finance industry and achieved finance self-regulation, globalizatiion of finance, introduction of information communication technology and restructuring of finance industry. Through the study of this paper, I am going to analyze his life, his finanancial results and his management creeds, so I am going to show useful management direction that is necessary to finance industry in the future.

저작근 골막하 박리를 이용한 만성 재발성 탈구의 치험례

심재환,김기홍,문진석,민병진,이원학,홍광진 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.3

Chronic recurrent dislocation(CRD) of the jaw has various etilogical causes, including trauma, congenital or acquired neurological illness, ingestion of certain medicines, incorrdination of the neuromuscular astivity of the chewing muscles, articular anatomical alteration, etc. Various surgical methods have been advocated for the treatment of the CRD. They may be divided into two groups: procedures designed to limit translation of the condyle and procedures eliminating obstacles in the condylar path. Hypomobility of mandible can be developed after BSSRO and it is probably caused by scar contracture, atrophy, and myofibrosis. Many authors, therefore, emphasized the importance of physical therapy especially after BSSRO to prevent the complication. Based on that idea, we designed more conservative surgical method to limit mandibular openning compared the methods that previously introduced and tried to treat the CRD. This new method consists of extensive subperiosteal dissection of masseter and the temporalis muscle under local anesthesia and use of intermaxillary elastics for some periods.

광대역 CDMA에 대한 코드 도메인 분석 시스템 구현에 관한 연구

김자환,류광렬 목원대학교 멀티미디어신기술연구소 2002 멀티미디어신기술연구소논문집 Vol.2 No.1

본 논문은 광대역 CDMA 무선 채널의 특성 중 코드 도메인을 분석을 하기 위한 시스템구현이다. 시스템 구성은 크게 RF부와 FPGA부, DSP부로 구성이 된다. FPGA는 RF부를 통한 신호를 I/Q분리 및 스크램블잉 코드를 계산한다. DSP는 스크램블잉 코드에 의한 역 확산된 신호는 OVSF코드를 이용하여 코드 영역의 전력을 계산을 한다. 실험 및 성능 테스트로는 광대역 CDMA발생기에 의한 실험 결과 코드 도메인 전력측정 정확도가 ±1㏈ 이내의 분석이 가능하였다. The realization for code domain analyzing system on Wideband-CDMA(Code Division Multiple Access) is presented. This system is realized with the RF, FPGA and DSP processor. The FPGA firgures out the scambling code, and DSP produces the power of code domain using OVSF. The experiment results allow the code domain power accuracy to keep ±1㏈ low. This system leads to split the text, sound and image signal.

백서 부분적 설절제가 하악골 성장에 미치는 영향에 관한 실험적 연구

현석환,김광원 대한치과교정학회 1995 대한치과교정학회지 Vol.25 No.5

이 연구의 목적은 부분적 설절제가 백서 하악골의 성장에 미치는 영향을 규명하기 위함이다. 생후 4주령의 웅서백서를 두 집단으로 분류하였다. 첫번째 집단은 대조군으로 사용하고 두번째 집단은 부분적으로 설절제를 시행한 집단이다. 이 실험동물은 부분적인 설절제 후 4주와 8주에 희생되었다. 부분적인 설절제 후 쥐의 하악성장변화는 건조 골표본에 의해 관찰되었다. 이 연구로부터 얻어진 결과는 다음과 같다. 1. 성장기 백서의 설절제는 하악골 자체의 형태에는 영향을 미치지 못하였으나 전반적인 하악골 성장의 감소를 초래했다. 2. 하악골 성장에 영향을 미치는 여러가지 요인 중 설은 백서 하악골 성장에 필수적인 요소이다. 3. 부분적인 설의 절제는 백서의 전체적인 성장을 변화시키지는 않았다. The purpose of this study was to investigate the effect of the partial glossectomy on the mandibular growth of growing rats. Thirty one Sprague-Dawley rats four weeks old were divided into two groupes : the first group served as the control and the second group was partially excised in the tongue of the rats. The experimental animals were sacrificed at 4 and 8 weeks after partial glossectomy. The changes of the rat mandibular growth following partial glossectomy were observed biometrically from dry bone specimens. The findings were as follows : 1. Partial glossectomy of growing rat produced inhibitory effects on the growth of the mandible and did not change the original shape of the mandible. 2. Among the factors affecting mandibular growth, the presence of the proper tongue size was essential. 3. Partial glossectomy of the growing rats could not change general growth of the rats whole bodies.

出力 時間遲延이 있는 離散時間 線型 시스템의 最適出力 饋還器

鄭鐵煥,文光碩,李健一 경북대학교 공과대학 1984 工大硏究誌 Vol.13 No.-

This paper considers the problem of designing optimal output-feedback controller for discrete-time linear time-invariant systems with time delayed output. The new control law is defined by instantaneous output and time delayed output. The output responses were more improved by the new control law than that of the instantaneous output control law. To analyze the systems with time delayed output, the way is presented that transforms output time delayed systems into instantaneous output systems. The algorithm for simulation and a numerical example is presented.

Influenza 流行모델의 改善에 관한 硏究

鄭亨煥,司空鍵,李光雨 동아대학교 공과대학 부설 한국자원개발연구소 1981 硏究報告 Vol.5 No.2

A mathematical model, which can be used for the study of an influenza epidemic, was derived by using the property of incubation period. The main results are as follows. 1) The new-model shows more exactly the curve of response. 2) The standard deviation of normal distribution curve of the incubation period is about 1.5. The Authors believe that the method to study the influenza model in this paper will be helpful to study the characteristics of other epidemics. It will also contribute to the influenza-control model.

전력계통의 안정화를 위한 퍼지제어의 적용

정형환,주석민,이광민 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

This paper proposed a regulation technique of scale factors on fuzzy controller for power system stabilization. These scale factors are regulated by a given exponential function with performance index variables. Simulation results showed that the proposrd fuzzy control technique was more powerful than conventional ones in faces of usefulness and robustness.