Development of a Reduction Algorithm of GEO Satellite Optical Observation Data for Optical Wide Field Patrol (OWL)

Sun-youp Park,Jin Choi1,Jung Hyun Jo,Ju Young Son,Yung-Sik Park,Hong-Suh Yim,Hong-Suh Yim,Hong-Kyu Moon,Young-Ho Bae,Jang-Hyun Park 한국우주과학회 2015 Journal of Astronomy and Space Sciences Vol.32 No.3

An algorithm to automatically extract coordinate and time information from optical observation data of geostationary orbit satellites (GEO satellites) or geosynchronous orbit satellites (GOS satellites) is developed. The optical wide-field patrol system is capable of automatic observation using a pre-arranged schedule. Therefore, if this type of automatic analysis algorithm is available, daily unmanned monitoring of GEO satellites can be possible. For data acquisition for development, the COMS1 satellite was observed with 1-s exposure time and 1-m interval. The images were grouped and processed in terms of “action”, and each action was composed of six or nine successive images. First, a reference image with the best quality in one action was selected. Next, the rest of the images in the action were geometrically transformed to fit in the horizontal coordinate system (expressed in azimuthal angle and elevation) of the reference image. Then, these images were median-combined to retain only the possible non-moving GEO candidates. By reverting the coordinate transformation of the positions of these GEO satellite candidates, the final coordinates could be calculated.

3個의 耕耘날을 利用한 平衡振動式 耕耘裝置(Ⅴ) : 運動解析과 要因分析

金成泰,金容煥,崔圭洪,金成泰 慶尙大學校 1988 論文集 Vol.27 No.1

This is the fifth part of series of reports on the study on a blanced-type oscillating tillage implement using triple blades system. Previous reports were made on the characteristics of power requirement and vibration with which tillage implements were oscillated parappep and perpendicular to the travelling direction. In this paper, the locus and motion analysis of the tillage blade and factor analysis were carried out. Obtained results are as follows : 1. The loci od the blade edge were described as helix curve at vertical oscillation and as lacerated curve at horizontal oscillation to the soil bin movement. 2. The motion equations of blade edge are estimated as follows. Vertical forced vibration ?? ?? Horizontal forced vibration ?? ?? 3. The multiple regression equations for resultant oscillating acceleration draft, specific resistance, and torque were established by using frequency, amplitude, life angle of tillage blade, and velocity of carriage as indepentent vibrations, respectively. 4. By reducing the velocity ratio is increased providing higher effect of the reduced draft. But this effect contradicted to achieve the reduced osillating acceleration. Both effects should be considered simultaneously to find out the optimum operating condition. 5. The reduction effect of the oscillating acceleration was slightly favoured to the horizontal forced vibration type, but traction efficiency could be lowered due to the increased slippage. Therefore, it can be concluded that the vertical forced vibration type is more appropriate considering overall performances. 6. From the experimental results, the optimum operating conditions of the vertical forced vibration type are recommended as follow ; life angle 30 degree, operation velocity 0.15 metre per second, amplitude 4-6 millimetre, and frequency 22.5 hertz.

대형할인점 리모델링 프로젝트의 CM at Risk 적용 타당성에 관한 연구

최규산,이호경,박영호,백준홍 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

Remodeling projects are on a increasing trend because of the old buildings built in 1960-70's, the preference for energy saving and the changes of social demands and government policies, etc. And also discount-store projects, which are rapidly increasing, are characterized by the fact that they are repetitive and have analogous scale and structure. Therefore, it is necessary to develop the concept discount-store model and apply the appropriate project delivery system for a successful execution of the projects. The purpose of this study is to analyze the characteristics of the discount-store remodeling projects and propose CM at Risk for the optimum delivery system of those projects.

UID설계의 지원수단과 방법에 관한 연구

崔明植,閔珪泓 경희대학교 부설 디자인연구원 1998 예술· 디자인학연구 Vol.1 No.1

If there is only a whole simple equipment like a light built in a simple function around us, neither happening will occur to us nor UID theory will be useful. But recently equipment supplied to home or office have complicated and various functions, besides become miniaturization. In one word, additional functions in comparison with the limited factor of design is becoming various. While varied functions give high added value, they cause new problem not only in the stage of design but also in users, and rather raise the problem for use. This kind of tendency is a new problem causing from the functions of recent electric appliances and is a example of raising problem rather than convenience on functions. Most of users might have experience the decline of operation causing by too many additional functions. This study considers what kind of factor we need for the design of the interface with rough contents of the method on the interface design, and examines what field of knowledge we need for the design of UID.

노인의 영적 간호요구

최미혜,김경희,김귀옥,김기숙,김수강,김정신,김춘숙,노흥진,박지연,성혜연,오명선,이선희,이원옥,이윤영,이현수,장명재,차혜경,채정선,홍상희 중앙대학교 의과대학 간호학과 간호과학연구소 2001 중앙간호논문집 Vol.5 No.1

This study was designed to exam the aged's needs for spiritual nursing care. The purpose was to serve as a basis for the development of spiritual nursing practice. The major findings are as follows : 1. The degree of needs for spiritual nursing care as area was that needs of love and relationship mean 22.0, needs of meaning and object mean 28.2, needs of forgiving mean 13.5. Total needs for spiritual nursing care mean 63.7, which was on the upper middle level. The needs of meaning and object was rated highest. 2. Among the general characteristics of the subjects, needs of love and relatiohship wasn't significanlty different. 3. Among the general characteristics of the subjects, needs of meaning and object was significantly different according to two factors : age(F=7.260, p=0.001), religion(F=5.275, p=0.001). Higher needs of meaning and object was possessed by the older than the younger, by the one who have religion than the other. 4. Among the general characteristics of the subjects, four factors made a significantly difference to needs of forgiving : sex(t=-2.851, p=0.006), age(F=8.201, p=0.001), religion(F=6.928, p=0.000), disease(t=2.327, p=0.024). Higher needs of forgiving was possessed by man than woman, by the older than the younger, by the one who have religion than the other, by the one who have disease than the other.

麥類條播機用 上向切削 로터리의 碎土性과 所要動力에 關한 硏究(Ⅰ)

崔圭洪,洪顯裕,李承奇 建國大學校 附設 農業資源開發硏究所 1993 農資源開發論集 Vol.18 No.-

본 시험은 麥類畦立細條播機 逆回轉 로터리 作業時 耕深을 16cm로 고정하고 耕耘 피치 및 토양수분 차이가 PTO軸의 토크와 所要動力 排水溝의 형상 및 쇄토율 등에 미치는 영향을 구명하기 위하여 벼 수확을 마치고 벼그루가 남아 있는 埴壤土의 논에서 시험을 실시하였으며 주요 결과는 다음과 같다. 1) PTO軸의 平均토크 및 最大토크는 토양수분에 따라 차이는 있지만 逆回轉 로터리의 耕耘 토크는 耕耘 피치 6cm이하에서는 耕耘 피치 증가에 따라 직선적으로 증가하지만 耕耘 피치 6cm이상에서는 耕耘 피치 증가에 관계없이 거의 일정한 경향이었다. 2) 作業速度와 排水溝 殘存흙 및 覆土狀態는 逆回轉 로터리의 주행속도가 느릴수록 또 PTO回轉速度가 빠를수록 양호하여 주행속도 1단 PTO 3단에서 가장 좋게 나타났다. 3) 쇄토율은 耕耘 피치가 증가할수록 또 토양수분이 높을수록 쇄토율은 떨어지는 경향이었으며, 충분한 碎土程度를 얻기 위하여는 耕耘 피치를 3cm이하로 하고 가능한 토양수분 함량 31.7%(d.b) 이하에서 작업하는 것이 좋을 것으로 판단되었다. 4) PTO軸의 所要動力은 작업속도 1∼4단 로터리 變速段數 1∼3段에서의 PTO軸 所要動力은 토양수분 38.0%(d.b)일 때 5.1∼14.5ps, 35.5%(d.b)의 경우 7.9∼14.2ps, 31.7%(d.b)일 때는 4.6∼12.7ps로 나타나 토양수분이 증가할수록 소용동력은 증가하다가 다시 감소하는 경향이었다. 5) 覆土狀態는 耕耘 피치가 적을수록 양호하여 주행속도 1단 PTO 3단의 경우 가장 좋았으며, 작업능률면을 고려할 때 排水溝 程度, 覆土狀態, 所要動力 및 作業能率 등을 고려할 때 畦立 로터리 파종작업시 PTO變速段數는 3단으로 하고 주행단수는 토양수분 함량 31.7%(d.b) 내외에서는 3단, 토양수분함량 35.5%(d.b) 내외에서는 2단, 토양수분 함량 38.0%(d.b) 이상에서는 1단으로 작업하여야 할 것으로 판단된다. This study was carried out to investigate the soil pulverization rate and power requirement of up-cut rotary of wheat and barley drill seeder for tractor by tilling pitch and soil moisture content. The experiment was conducted in the paddy field of clay roam remaining stem of paddy rice after harvesting. The results are summarized as follows: 1) Average and maximum torque of PTO shaft was increased in proportion with tilling pitch in less than 6cm, but was apt to definite over than 6cm of tilling pitch. 2) The working speed, status of remaining and covering soil in drainage was good in proportion with decrease the travelling speed of up-cut rotary and increae the revolutions per minute. Therefore, the working status in drainage was best in forward first gear and PTO third stage. 3) The soil pulverization rate was decreased according to increase the tilling pitch and soil moisture content. It was concluded that tilling work in 31.7 percent of soil moisture content and less than 3cm of tilling pitch would be good. 4) The power requirement of PTO shaft by soil moisture content were 5.2∼14,5ps in 38.0 percent, 7.9∼14.2ps in 35.1 percent and 4.6∼12.7ps in 31.7 percent soil moisture content. So the power requirement of PTO shaft was apt to increase in proportion with soil moisture content the first and decrease the last. 5) The status of soil covering was good in forward first gear and PTO third stage. When it was considered the status of drainage, covering the soil and power requirement in working performance, it was concluded that the PTO stage would be third and working speed would be forward third gear in 31.7 percent, forward second gear in 35.5 percent and forward first gear in 38.0 percent of moisture content.

향토지 편찬을 위한 방향모색

최홍규 강남대학교 인문과학연구소 1997 인문과학논집 Vol.4 No.-

은행나무의 생화학적 특성 조사(Ⅰ)

최홍규 전주교육대학교 1997 論文集 Vol.34 No.-

은행나무에 관한 연구를 하는데 필요한 기초자료를 제공하기 위하여 은행나무의 생화학적 특성을 조사하였다. 은행잎에서 추출한 단백질은 14종류로 각각의 분자량은 58.5K(58,500Da). 57K, 42.5K, 37K, 33K. 29K, 27K, 24K, 22K, 19K, 18K, 17.5K, 17K, 15K 였으며 그중 29K 단백질이 가장 많았다. 29K 단백질은 수그루에서 보다 암그루에서 더 많은 양이 검출되었으나, 암그루와 수그루사이에서는 단백질의 종류에 차이가 없었다. Genomic DNA의 추출은 액체질소에서 homogenization 한후 유발에 sea-sand를 첨가하여 더욱 철저히 세포를 파괴시킴으로서 가능하였다. In order to offer basic data about gingko trees, the biochemical properties of a gingko tree were investigated in this experiment. 14 types of protein were detected from gingko leaves and their molecular weights were 58.5K(58,500 Da), 57K, 42.5K, 37K, 33K, 29K, 27K, 24K, 22K, 19K, 18K, 17.5K, 17K and 15K, respectively. The 29K protein of them was dominant in both male and female leaves. The 29K protein was detected much more in female leaves than in male leaves, but there was no difference in sorts of protein between male and female trees. The genomic DNAs were successfully extracted by adding sea-sand to the gingko leaves in mortar, which were rehomogenized after homogenization in liquid nitrogen.

위생적인 학교급식을 위한 연구

최홍규 全州敎育大學校 初等敎育硏究所 1998 初等敎育硏究 Vol.9 No.-

Some experiments were carried out with a view to finding out the means of supplying hygienic food to the students at schools. To find out the source of infection, the researcher counted the number of bacteria found in the cafeteria trays which were treated under different conditions of sterilization. The number of bacteria found in side dishes was also counted. The following are the results : School cafeterias in general sterilize their trays by putting them in the hot airsterilizer at 110℃ for two hours after they clean them with an automatic dishwasher. These trays contain relatively many bacteria(91 bacteria per tray at P Elementary School Cafeteria ; 1,087 bacteria per tray at N Elementary School Cafeteria). If the trays were filed up at intervals of 2~3mm in the hot air sterilizer, however, the number of detected bacteria was remarkably decreased under the same condition of sterilization(4 bacteria per tray at P Elementary School Cafeteria ; 14 at N Elementary School Cafeteria). 6,675 bacteria per gram were detected from cabbage salad and 60,682 bacteria per gram were detected from cucumber mixture with red pepper paste. The source of infection in case of cabbage salad was mayonnaise. Red pepper paste was the source of infection in case of cucumber mixture, but most of bacteria found in red pepper paste were benefical ones, Bacillus subtilis.

農業機械 主要部品의 機械的 性質에 關한 硏究(Ⅰ)

崔圭洪,權純洪 建國大學校 附設 農業資源開發硏究所 1991 農資源開發論集 Vol.16 No.-

본 실험은 農業機械의 性能 및 耐久性에 밀접한 관계를 가지며, 素材의 品質面에서 구성하고 있는 化學成分이 韓國工業規格에 적합치 못한 주요 부품의 材料에 대한 機械的 性質을 조사하여 良質素材의 安定供給을 위한 素材産業의 육성과 이에 따른 優良農業機械의 生産供給으로 素材에 의한 品質低下 要因이 발생하지 않도록 그 基本資料를 제시하고자 실시하였으며, 분석한 결과를 요약하면 다음과 같다. 1) 一般鋼材 및 特殊用鐵鋼을 材料로 사용하는 부품은 素材別로 機械的 性質이 좋지 못한 것으로 나타났다. 2) 鑄物類를 素材로 하고 있는 부품은 모두 저급의 材質을 사용하고 있는 것으로 나타났다. 3) 小規模 群小業體가 生産供給하는 機種의 부품에 사용되고 있는 재료는 대단히 불량한 것으로 나타나 이에 대한 素材의 品質向上 및 良質素材의 安定供給을 위한 素材産業의 육성이 절실한 것으로 생각된다. These studies were carried out to investigate the mechanical properties for the major part in agricultural machinery in order to bring up the material industry and for the factor of quality drop not to happen to Korean farm machinery. The results are as follows ; 1) Carbons Steels and special purpose steels used in the major parts in agricultural machinery were inferior materials in mechanical properties. 2) Alloy castings used in the major parts were unsuitable to mechanical properties. 3) The attachments for working machinery, power sprayer, thresher, straw cutter, which were manufactured by small makers, were not suitable to the major parts in agricultural machinery. I think that urgent problems are the improvement of quality control in materials and the upbringing of the material industry in order to stabilize the supply of good quality materials in Korean farm machinery.