학창(學創) 이종록(李鍾祿) 선생 창조교육 60년 기념 교육 논총 : 창조교육의 사상과 실천 ; 창조적 경영 전략에 의한 중소지식기업의 변화

채기병 창조교육학회 2005 창조교육의 사상과 실천 Vol.1 No.-

ISR 임무를 위한 SAR 군집위성의 성능지수 및 응답주기 분석 알고리즘 개발

채기병,김홍래,장영근 한국항공우주학회 2015 한국항공우주학회 학술발표회 논문집 Vol.2015 No.11

통상 위성시스템의 개발과정에서 궤도 및 임무설계는 위성설계 초기단계에서 이루어지며, 임무효용성(MoE; Measures of Effectiveness)을 높이기 위한 구체적인 위성의 임무 요구조건과 임무계획이 요구된다. 특히, 지구관측위성의 경우 목적에 맞는 군집궤도의 설계와 운용 시나리오를 통해 특정 목표물을 탐지하기 위한 임무에 활용될 수 있다. 본 논문에서는 4기의 위성을 이용한 SAR(Synthetic Aperture Radar) 위성군집(Satellite Constellation) 궤도의 성능지수(FoM; Figure of Merits) 분석을 위해 상용툴인 MATLAB 및 STK(Systems Tool Kit)의 연동 인터페이스를 이용하여 알고리즘을 개발하였으며, 특정 목표물에 대한 고해상도의 영상획득이 가능하도록 군집위성의 운용시나리오를 제안하였다. 이러한 운용시나리오를 적용하기 위해 재방문주기 및 촬영모드 전환을 고려한 시스템 응답주기 분석 알고리즘을 개발하고 이를 검증하였다. 본 연구에서는 임무수행을 위한 4기 SAR 군집위성의 성능지수로서 재방문주기(Revisit Time) 및 응답주기(Response Time)를 정의하였으며, 이를 각 궤도면에 따라 분석한 결과를 통해 특정 궤도면에서 임무요구조건을 어느 정도 만족하는지 결과를 산출하였다. Mission design is usually performed in the early design stages during the development of a satellite system. The mission planning and mission requirements are required to increase Measures of Effectiveness (MoE). In particular, in the case of earth observation satellite, it can be used to detect specific targets through the constellation design and operational scenarios based on the mission purposes. In this study, implementing the interface of MATLAB and STK(Systems Tool Kit), FoM(Figure of Merit) analysis algorithm and operational scenario with 4 SAR satellite constellation were developed, and the methodology to acquire high-resolution images for a specific target was suggested. To apply this scenario, revisit time and system response time analysis algorithm considering SAR mode conversion were developed and verified. In this paper, average revisit time and system response time was defined as important FoMs. The analysis results that satisfy mission requirements in a particular orbit plane were suggested.

리트벨트 해석법을 이용한 $Y_1Ba_2Cu_3O_x$ 고온 초전도체의 구조분석

채기병,소대화 한국전기전자재료학회 1995 電氣電子材料學會誌 Vol.8 No.6

For the execution of RIETAN program adopting Rietveld Analysis Method, the sample superconductor is made according to the solid state synthesis method at 920.deg. C for 24hrs, and was examined for the optimization of parameters needed to analyze Rietveld method with the input of the measured pattern data after measuring the pattern resulted from the X-ray diffraction. It was proven that the lattice constant of the superconductor which was consisted of Pmmm orthorhombic crystal structure in the analyzed space group correspond to the presented theoretical lattice constant a=3.8887(8).angs., b=3.8238(4).angs., c=11.7079.angs.. Therefore, it was examined and confin-ned that the R factor, which was compensated after analyzing the structure of superconductor resulted from this experimented data with the computer simulation, was refined to $R_{wp}$=8.83[%], $R_{P}$=6.47[%], $R_{I}$=10.08[%], $R_{F}$=7.19[%], $R_{E}$=3.76[%]. On the basis of these experimental data, the significant parameter such as the scale factor(S) and the zero point shift(Z) and FWHM value(U,V,W) were optimized as follows; S=2.0827E-3, Z=0.2146, U=4.2761E-2, V=1.7983E-2, and W=2.6768E-2.2.2.2.2.2.

창조적 경영 전략에 의한 중소지식기업의 변화

채기병 창조교육학회 2005 창조교육논총 Vol.7 No.-

말라르메(S.Mallarme) <책Livre>과 작품 'Coup de des'

채기병 한국 프랑스어문교육학회 1996 프랑스어문교육 Vol.4 No.-

Mallarme reve en somme <le Livre> comme une parfaite forme synthetique. Tout tend vers ce <Livre>. <Coup de des> se presente comme l'oeuvre qui. s'est bien rapproche de la conception du <Livre>. Mallarme a ecrit a Verlaine; <...j'ai toujours reve et tente autre chose, avec une patience d'a;chimiste, pret a y sacrifier toute vanite et toute satisfaction, pour alimenter le fourneau du Grand Oeuvre>. Le Grand Oeuvre est evidemment le <Livre> qui est impersonnel et vivant, seul et absolu. Le <Livre> est <l'explication orphique de la Terre, qui est le seul devoir du poete et le jeu litteraire par excellence>. Le <Livre> est compare a la <Constellation>. L'ecriture de Mallarme est inverse, en effet, de l'ecriture des etoiles. Les etoiles ecrivent le Poeme cosmique sur le ciel noir. Le livre du ciel est ecrit blanc sur noir. Et <l'homme poursuit noir sur blanc>. Jaques Scherer dit dans Le"Livre" de Mallarme; "A la constellation celeste correspond la noir ecriture hymaine. A la parole divine:< Oue la lumiere soit>, l'homme moderne a reponde, revandiquant sa propre existance, par une creation d'ombre:<Que la nuit soit>, qui retentit sur <le papier bleme de tant d'audace>". Maurice Blanchot dit dans La Part du Feu; "le Livre, equivalent du monde, explication orphique de la Terre, n'est pas tant le Grand Oeuvre, destinee a resumer l'univers, microcosme ou tiendrait le tout, mais le creux de cette totalite, son envers, son absence realisee, s'est-a-dire le pouvoir de tout exprimer, par consequent un pouvoir qui est lui-meme soustrait a tout et exprime par rien, ce qu'il faut bien appeler :<le jeu par excellence>". Le <Livre> est la totalite de l'ldee, realisee en langage. Le processus de la recherche poetique de Mallarme est la recherche sur le langage lui-meme et sur la possibilite de langage. Ainsi, le theme de tous ses poemes, c'est la Poesie. L'Absene, de laquelle l'Idee pourra naitre, est veritablement la source de tout l'Etre. Quand tous les sons disparaissent. le silence commence a parler en langage de l'Idee.

방향성 결합을 위한 광 도파로 폭의 최적화 연구

강기성,소대화,채기병 明知大學校 産業技術硏究所 1993 産業技術硏究所論文集 Vol.12 No.-

We performed theoretical simulation for directional coupler using BPM program. Simulation results showed that the optimum optical waveguide width and the gap between the guides were 4μm. Using the parametes of n₁=2.25, n₂=2.25, n₃=2.2, gap=4μm, W=30μm, Z=0.1μm, λ=1.5m, we decided other design parametes. Proton exchange of proton diffusion method was applized to pattern a waveguide on a LiNbO₃ substrate.

Y-Ba-Cu-O계 초전도 박막 제작 및 특성 연구

채기병,소대화,강기성 明知大學校 産業技術硏究所 1994 産業技術硏究所論文集 Vol.13 No.-

The superconducting thin films have ben deposited on the SiOx substrate by R.F magnetron sputtering using YBa₂Cu₃Ox single target. The thickness of films was 1000-2000Å with a rate of 20-25Å/min and superconducting properties were studied of thin films depend on the compositions. We have studied the superconducting thin films obtained under the various conditions in this sputtering method of fabrication and aiso analyzed SEM photograph and X-ray diffraction patterns of calcination powder to target and the thin films have an influence in addition. We could measure the annealing condition and the electric properties of superconducting thin films owing to substrate about 50K.

Y-Sm-Ba-Cu-O 超傳導體의 特性 硏究

채기병,장기성,소대화 明知大學校 産業技術硏究所 1990 産業技術硏究所論文集 Vol.9 No.-

In this study, a new sintered specimens of Y₁-xSmxBa₂Cu₃Oy is composed by substituting Sm for a part of Y in the YBa₂Cu₃Oy high Te superconductor. in order to study of making (Y-Sm)-Ba-Cu-O system sintered specimens and their characteristics. And their change affected on superconductivity and their characteristics are studied by changing the x range of the composition rate. The resistances of electrical characteristics under the conditions of the composition and the temperature are measured by using Ac four probe method in the procedure of this. experiments. And it is confirmed that the Meissner effect from the superconductivity of compose S m system exists in the range of 0 < x 0.5. As for the type of the grain structure, by the SEM photographs, it is observed that the grain structures of the superconductors are formed into the stick type.

K-POP 공연장을 올림픽 유산에 담아내다 : KSPO Dome (올림픽체조경기장)

채기병(Chae, Gi-Byung),김태만(Kim, Tae-Man) 한국교육시설학회 2019 敎育施設 Vol.26 No.4

철도건설에 따른 근대적 도시구조의 형성에 관한 연구

김태영,채기병 대한건축학회 1997 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.17 No.2