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.

유비쿼터스 게임 플랫폼에서 멀티스레딩을 위한 가상기계의 설계 및 구현

최홍석 ( Hong-suck Choi ),이양선 ( Yang-sun Lee ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.1

본 연구팀은 유비쿼터스 환경에서 다양한 분야의 콘텐츠를 보다 쉽게 개발하고 실행할 수 있는 통합 소프트웨어 개발 솔루션인 유비쿼터스 게임 플랫폼(Ubiquitous Game Platform)을 개발하였다. 유비쿼터스 게임 플랫폼은 가상기계 방식으로써 플랫폼에 독립적어서 유비쿼터스 환경의 기기에 탑재가 수월한 장점을 가진다. 본 논문에서는 유비쿼터스 게임 플랫폼에서 다양한 콘텐츠의 실행과 멀티 스레딩을 지원하는 유비쿼터스 가상기계(u-VM)를 설계하고 구현하였다. MS의 .NET 플랫폼과 SUN의 JVM이 C/C++나 Java 언어 하나만을 지원하는데 반해 본 연구에서 제시한 u-은 다양한 유비쿼터스 기기에 탑재되어 C/C++, Java 언어로 작성된 다양한 모든 종류의 어플리케이션을 실행한다. u-VM은 SEF(Standard Executable Format) 실행 파일을 입력으로 받아 실행하며, SEF 로더와 인터프리터, 내장 라이브러리, 실행 환경으로 구성되어 있다. 실행 환경에서는 메모리를 관리하고 예외를 처리하며 스레드 스케줄러를 통해 멀티스레딩 기능을 제공 한다.

유비쿼터스 환경의 임베디드 기기들을 위한 가상기계의 설계 및 구현

최홍석(Hong-Suck Choi),김영근(Young-kean Kim),권혁주(Hyuck-Ju Kwon),이양선(Yang-Sun Lee) 한국멀티미디어학회 2006 한국멀티미디어학회 학술발표논문집 Vol.2006 No.2

본 논문에서는 유비쿼터스 환경의 임베디드 기기들을 위한 가상 기계인 임베디드 가상기계 (EVM)를 설계하고 구현 하였다. 임베디드 가상기계는 각 개발 언어로 작성된 프로그램과 의미적으로 동등한 중간 코드를 입력으로 받아 소프트왜어 레벨로 프로그램들을 실행 시켜 주는 프로그램으로, 하드웨어의 역할을 소프트왜어로 구현한 일종의 가상 기계이다. 소프트웨어로 구현 된 임베디드 가상기계는 운영체제나 임베디드 기기 등에 탑재 시 하드웨어의 구애를 받지 않고 어플리케이션의 실행이 가능하므로 플랫폼에 독립적인 장점을 가진다. 또한 임베디드 가상 기계는 순차적 언어와 객체 지향 언어를 수용하는 중간 코드를 입력으로 사용함으로써 각 언어에 대해 의존적으로 수행되는 MS사의 .NET과 Sun사의 JVM과는 달리 C/C++/Java 언어에 독립적인 실행이 가능하다.

비만 개선 효과를 지닌 탄수화물 및 지방 흡수 억제 기능성 식이조성물 개발

윤유식,최선미,홍순복,홍정미,김정원,이홍석,홍성길 한국조리과학회 2002 한국식품조리과학회지 Vol.18 No.3

In a previous study, we developed a new food additive as an egg yolk antibody (IgY) against carbohydrate digestion enzymes for the regulation of blood glucose level and weight control. The IgY delayed and decreased the increment of blood glucose level after administration of sucrose in human being by 30% in 20∼30 min. We also developed a lipase inhibitor as a water extract of two kinds of herb, Platycodon grandiflorum and Solanum melongena. Twenty three volunteers were subjected to the intake of the egg yolk IgY plus the herbal extracts for 50 days. In average, the treated subjects appeared to lose 1.96 ㎏ of body weight and 3.4 ㎏ of body fat mass during the treated period. Furthermore, Panniculus adiposus and breech size were significantly decreased during the experimental period. Above results suggested that the administration of the dietary additives composed of egg yolk IgY and natural herbal extract improve the obesity by the decrement of body weight and body fat mass.

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.

하천설계기준의 만곡부 수면형 결정 방법에 대한 적용성 검증

최한규,채홍기,백효선 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.B

Through the result of calculating the deviation between the value calculated from two-dimensional number formula, one-dimensional number interpretation, and curving part water surface type calculation method, we could confirmed that the deviation is reduced more than 50% when we use curving part water surface type calculation method. Also it was confirmed that there occurs the reduction since the reduction rate of safe room height was 20% in 500 CMS of flood water quantity when we planed the construction of levee by curving part water surface type calculation method. And therefore, we have confirmed that the curving water surface type calculation method can be used as a simple formula in rivers with water quantity less than 500 CMS that flows in and out in less than 90 degree angle.

확산망을 이용한 확산필터뱅크 구현

최일홍,박순규,황준혁 진주여자전문대학 2001 論文集 Vol.24 No.-

In this paper, we has been studied the variable diffusion filter bank. A variable diffusion filter bank which varies the width of pass band is using diffusion network. A variable diffusion filter bank which has advantage of building multi-channel without additional hardware. The simulation result of pass band ripple was very small and the range of slop hand was ignorable.

원자력발전소 증기발생기 수위 제어에 관한 연구

崔琁雄,姜泰垠,崔洪圭 홍익대학교 산업기술연구소 1996 産業技術 Vol.6 No.-

About a half of Electric power is generated by nuclear power plants in korea. So, a stable operation of nuclear power plant is very important for suppling the essential national eletric power. A S/G (Steam Generator) level control is the most difficult system in PWR(Pressurized Water Reactor) nuclear power plant. Because of the non-linear and the non-nominal response of S/G level control, it is very difficult to control the level by automatic mode or manual mode. The goal of this study is to establish and verify a advanced control alogorithm by analyzing, modeling, stability calculation, controller parameter calculation, simulation for S/G level control system. The response of a S/G level was analyzed and understood mathmatically by modeling. Some parameters of nuclear power plant were analyzed by modeling and used to simulate the S/G level control. The S/G level control system was tested and analyzed with the S/G level model, the result of the analyzing the control loop is unstable with the present control parameters. The Nyquist mapping method was used to analyze the stability of a control loop. The phase crossover frequency is calculated and applied to verify the stability of a control loop. By calculation of a control parameter which let the phase crossover point be allways in the stability region with the phase crossover frequency, the control loop applied the caulation control parameter is also stable. The S/G level control is more stable and faster by appling the feed-forward control with the calculated control parameter. The result of this study may be applied to analyze and approve the S/G level control system of the nuclear power plants.

한의진단명과 진단요건의 표준화 연구 III : 3차년도 연구결과 보고

최선미,양기상,최승훈,박경모,박종현,심범상,김성우,노석선,이인선,정진홍,이진용,김달래,임형호,김윤범,박성식,송태원,김종우,이승기,최윤정,신순식 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the third year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : - analyzing and differentiating of epidemic febrile disease - analyzing and differentiating in accordance with the Sasang constitution medicine based on four-type recognition - differentiation of disease according to pathological changes of Chong and Ren channels - standards for diagnosis of women's disease - standards for diagnosis of children's disease - standards for diagnosis of motor and sensor disturbance (-muscle. born, joint, etc.) - standards for diagnosis of neuropsychiatric disease - standards for diagnosis of five sense organ disease - standards for diagnosis of external disease The indivisual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name, notion of diagnosis pattern, index of differentiation of symptoms and signs, the main point of diagnosis, analysis of diagnosis pattern, discrimination of diagnosis pattern, prognosis, a way of curing a disease, prescription, herbs in common use, disease appearing the diagnosis pattern, documents. The standards for diagnosis of each disease was arranged by the diagnostic requirements in the following order : another name, notion of disease, the main point of diagnosis, analyzing and differentiating of disease, analysis of disease, discrimination of disease, prognosis, a way of curing and prescription of disease, disease in western medicine appearing the disease in oriental medicine, documents.

장구균의 동정에 대한 PCR 방법의 유용성

최연화,이영선,김홍빈,김치경,김봉수 대한감염학회 2001 감염 Vol.33 No.2

Background : Enterococci are important cause of nosocomial infections. Recently, vancomycin-resistant enterococci (VRE) has been increasingly reported as significant nosocomial pathogens. Therefore, accurate identification of enterococcal species is a prerequisite step for the appropriate antibiotic treatment and epidemiologic surveillance. We wanted to know the usefulness of PCR method compared with Vitek automatic identification system. Methods : Totally 105 isolates were identified on the species level by Vitek (GPI card and software version R06.1), methyl-α -D-glucopyranoside test, and PCR methods. Results : Among 105 enterococcal isolates, 59 were identified as E. faecium, 11 E. faecalis, 6 E. gallinarum by Vitek. But 29 isolates (28%) were unidentified. Subsequently all of these isolates were analyzed by PCR, the results of which were as follows : 17 E. faecium, 5 E. casseliflavus, 7 E. gallinarum. Two isolates identified as E. gallinarum by Vitek were reidentified as E. casseliflavus by PCR and other methods far phenotypic characterization. Conclusoin : PCR method was more accurate and sensitive than Vitek for the identification of enterococci species. (Korean J Infect Dis 33:123∼127, 2001)