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A Note on Stratifiability & Multivalued Function Spaces
姜錫泰 群山大學校 1984 論文集 Vol.7 No.-
In this paper we discuss a generalization of continuous function in terms of multivalued function. This paper is a sequencial work of [8] and terminologies are the same to these in [1] unless it is explicity mentioned.
유연성을 가지는 비행체를 위한 속도/방위각 정합 전달 정렬 알고리즘 설계
강석태,Suktae Kang 한국군사과학기술학회 2023 한국군사과학기술학회지 Vol.26 No.3
A transfer alignment is used to initialize, align, and calibrate a SINS(Slave INS) using a MINS(Master INS) in motion. This paper presents an airborne transfer alignment with velocity and azimuth matching to estimate inertial sensor biases under the wing flexure influence. This study also considers the lever arm, time delay and relative orientation between MINS and SINS. The traditional transfer alignment only uses velocity matching. In contrast, this paper utilizes the azimuth matching to prevent divergence of the azimuth when the aircraft is stationary or quasi-stationary since the azimuth is less affected by the wing flexibility. The performance of the proposed Kalman filter is analyzed using two factors; one is the estimation performance of gyroscope and accelerometer bias and the other is comparing aircraft dynamics and attitude covariance. The performance of the proposed filter is verified using a long term flight test. The test results show that the proposed scheme can be effectively applied to various platforms that require airborne transfer alignment.
강석태 군산교육대학 1970 論文集 Vol.3 No.-
Wilks defind the uniform convergence in probability and gave a theorem in his celebrated book. However, in this paper we will give a counter example in §2 and two revised theorems in §3. A Proof is given to Theorem, the results are as follows. <Theorem> Let (x₁(Θ), x₂(Θ),···, xn(Θ),···) be a stochastic process depending on a Parameter Θsuch that the following assumptions are satisfied : i) For some Θo and any Θin a Parameter space (H) (for simplicity we assume that (H) is an open interval in the real line), (f₁(x₁(Θo),Θ), f₂(x₁(Θo), x₂(Θo)Θ), ···fn(x₁(Θo),Θ), ···, Xn(Θo)Θ),···) is a stochastic process and for any positive number εthere exist nε>0 and ??(ε) >0 such that for any n>nε, there holds P ㅣfn(x₁(Θo),···xn(Θo),Θ)-fn(x₁(Θo),···,xn(Θo),Θo) ㅣ 〉ε,for all Θo(Θo-??(ε),Θo+??(ε)}〈ε. ii) fn(x₁(Θo), ···xn,(Θo), Θo) converges to g(Θo) in probability as n→∞. iii) Θ*n(x₁(Θn), ······, xn(Θo)) Converges to Θo in probability as n→∞. Then, fn[x₁(Θo), ······, xn(Θo), Θ*n(x₁(Θo), ···, xn(Θo)] Converges to g(Θo) in Probability when n→∞.
Art Collaboration between Companies and Artists and the Attraction of Urban Brands
강석태,강형철 인하대학교 다문화융합연구소 2022 다문화와 교육 Vol.7 No.2
Art collaboration is for artists to create new added value, and individuals, companies, and countries create artistic business opportunities through creative collaboration at the boundary between technology and art. Places where exhibitions and art are held have become famous, increasing the value of urban brands and becoming tourist destinations. As a research method, the phenomenon of art collaboration was studied through literature and case studies. You can see the collaboration cases of Uniqlo and MoMA Gallery, Louis Vuitton and Jeff Koons, and Lee Woo-hwan and Chateau-Mutong Wine as convergence exhibitions and businesses of domestic and foreign companies and arts. It can be seen that the collaboration research between companies and arts through KOTRA's matching of companies and arts, Sejong Center installation art, Seongsu-dong non-mainstream art street culture, and Arttainer pop-up store can be a unique way of attracting. As a result of the study, the development patterns of domestic art collaboration are as follows. First, national-led social values and art collaboration contain social values such as eco-friendly and upcycling, and are mainly led by KOTRA institutions. Second, companies combine ABSOLUT companies and eco-friendly special paints to convey the public message of sustainability to the public as art, and third, individuals prefer non-face-to-face lounges and private spaces in luxury hotels where artists' works are displayed in order to have life-shot attractions. In conclusion, the artist drew the conclusion that the existing value of exhibition and sale of works can create an art collaboration synergy value that strengthens the artist-centered urban brand attraction through the industrialization of art collaboration.
국민학교 고학년에 적용한 새로운 수학적 개념의 이해에 관한 연구 : 집합, 관계 개념을 중심으로 Of the Concepts in Sets and Relations
강석태 群山敎育大學 1972 論文集 Vol.5 No.-
One of several important innovations in mathematics education today is new subject matter. New mathematical concepts are considered important. According to the issue of mathematics education today, this research has been attempted to find out the extent of the scope and sequence and the ways of improving teaching method of new mathematical concepts, namely sets and relations, to be understood by the fifth and sixth grade children in the elementary school. This study has been carried out through the following process : 1) I have chosen one elementary school classroom teacher who is able to teach the new mathematical concepts to the children in the elementary school. 2) We have several meeting to determine the scope and sequence and the proportion of sets and relations in fifth and sixth grade of the elementary school. 3) With the subject matter determined, we made each lesson plan for fifth and sixth grade and taught it to each class for ten hours. 4) The achievement of the children was tested with the items which are limited the domain of knowledge and comprehension but which is not drawn up in accordance with taxonomy of educational objectives. The results were analyzed according to the determined criteria. The results of the study may be summarized as follows : 1) It is shown that we can generally teach the concepts of sets and relations to fifth and sixth grade children. According to the above statement, it suggests that we can teach the basic parts of sets concepts and basic operation to third or fourth grade children in the elementary school. 2) It is shown that when even the basic sets and relations concepts need the higher mental processes, we can not teach them to fifth and sixth grade children in the elementary school. 3) It is shown that we have to help elementary school classroom teachers understand the new mathematical concepts and practice them for the children in the elementary school.