• 제목/요약/키워드: science and arts

검색결과 3,093건 처리시간 0.032초

EXISTENCE, UNIQUENESS AND HYERS-ULAM-RASSIAS STABILITY OF IMPULSIVE FRACTIONAL INTEGRO-DIFFERENTIAL EQUATION WITH BOUNDARY CONDITION

  • MALAR, K.;GOWRISANKAR, C.
    • Journal of applied mathematics & informatics
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    • 제40권5_6호
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    • pp.1089-1103
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    • 2022
  • This paper focuses on the existence and uniqueness outcome for fractional integro-differential equation (FIDE) among impulsive edge condition and Hyers-Ulam-Rassias Stability (HURS) by using fractional calculus and some fixed point theorem in some weak conditions. The outcome procured in this paper upgrade and perpetuate some studied solutions.

SOME LOCAL SPECTRAL PROPERTIES OF T AND S WITH AT - SA = 0

  • Yoo, Jong-Kwang;Han, Hyuk
    • Journal of applied mathematics & informatics
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    • 제26권5_6호
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    • pp.1263-1272
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    • 2008
  • Let T and S be bounded linear operators on Banach spaces X and y, respectively. A linear map A : X ${\rightarrow}$ y is said to be an intertwiner if AT - SA = 0. In this paper we study the relation between local spectral properties of T and S on the assumption of AT - SA = 0. We give some example of intertwiner with T and S.

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전통예술자료 아카이빙을 위한 보존 메타데이터 설계에 관한 연구 (Designing Preservation Metadata for Archives of Korean Traditional Arts)

  • 오삼균;권기성
    • 한국문헌정보학회지
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    • 제41권4호
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    • pp.387-412
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    • 2007
  • 광범위한 분야에 걸쳐 다양한 형태의 대상자원을 지닌 전통예술분야의 아카이빙을 위한 보존 메타데이터 스키마를 설계하였다. 이를 위해 OAIS참조모델과 PREMIS 데이터 사전 그리고 다양하게 개발된 보존 메타데이터 규격들을 참조하고 한국전통예술자료의 특성을 조사하고 분석하여 기존 규격과의 호환성을 유지하는 것을 대원칙으로 하고 전통예술자료 도메인에 대한 특징적 정보를 기술하여 보존과 활용에 필요한 최적의 보존메타데이터 스키마를 설계하려 노력하였다. 모든 메타데이터 요소에 어떤 네임스페이스에서 온 것인지를 선언하여 지속적인 관리를 꾀했으며 참조한 모델의 원래 규격을 최대한 준용하였고. 국악원의 자료의 특성과 새로운 서비스의 제공에 필요한 요소를 새로 생성하여 기존 스키마를 확장하고 수정하여 전통예술자료의 아카이빙을 위한 최적의 메타데이터 스키마를 제안하게 되었다.

제판방식에 의해 구분된 Gravure 인쇄의 농도 변화 (A Transformation of Image Density making a Method of Plate in Printing a Gravure)

  • 전준배;신종순;강영립
    • 한국인쇄학회지
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    • 제20권2호
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    • pp.69-83
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    • 2002
  • This research attempts on plate making for gravure. Direct Hard Dot Method, Helio Kliso Graph, and Laser TB Dot; these three method are the most popular in Korea. For examining ink transmission, three plates were made in the above three different way for the same manuscript and were printed under the same condition. After printing speed was also varied into 150line/inch, 175line/inch, and 200line/inch, ink transmission was examined too. After printing the same manuscript with the above three method then the researcher examined level of ink transmission. Printing lines shows that Laser TB Dot Method and Direct Hard Dot Method were favorable level, while there was big differences of state of Helio Kliso Graph plate.

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Multimedia Technologies As A Basis For The Development Of Modern It Education In Ukraine

  • Seiko, Nataliia;Yershov, Mykola-Oleg;Sakhnenko, Anna;Shevchenko, Marina;Bezsmertnyi, Roman;Kostyrya, Inna
    • International Journal of Computer Science & Network Security
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    • 제21권11호
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    • pp.363-367
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    • 2021
  • This article analyzes the state and development of multimedia technologies in the educational process. The reasons for the emergence of multimedia educational technologies are shown. The definition of the concept of "multimedia education" is given. The advantages and disadvantages of teaching using multimedia technologies are presented. The article, based on multimedia technologies, provides one of the ways to solve the problem of lack of classroom time for the presentation of all educational material in the process of teaching engineering students. The creation and application of educational videos in education is discussed, an example of teaching electrical engineering is given; the requirements for the development of video lessons, their advantages and importance in the educational process are indicated.

Convenient Synthesis of N-Sulfinylamines Catalytic Effects of Tertiary Amines

  • Park, Koon-Ha;Park, Myeong-Soon
    • Bulletin of the Korean Chemical Society
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    • 제11권6호
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    • pp.494-496
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    • 1990
  • Catalytic effects of tertiary amines on N-sulfinylation of p-toluenesulfonamide, p-toluidine, and p-toluamide have been investigated by proton NMR studies. Though the catalytic effects were dependent on the substrates, 4-dimethylaminopyridine, pyridine and triethylamine exerted stronger catalytic effects than imidazole and N,N-dimethylaniline. Among the substrates employed, p-toluenesulfonamide turned out to be catalyzed greater than p-toluidine and p-toluamide.

FRACTIONAL TRAPEZOID AND NEWTON TYPE INEQUALITIES FOR DIFFERENTIABLE S-CONVEX FUNCTIONS

  • Fatih Hezenci;Huseyin Budak;Muhammad Aamir Ali
    • 호남수학학술지
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    • 제45권1호
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    • pp.160-183
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    • 2023
  • In the present paper, we prove that our main inequality reduces to some trapezoid and Newton type inequalities for differentiable s-convex functions. These inequalities are established by using the well-known Riemann-Liouville fractional integrals. With the help of special cases of our main results, we also present some new and previously obtained trapezoid and Newton type inequalities.

ON FIXED POINT THEOREMS FOR MULTIVALUED MAPPINGS OF FENG-LIU TYPE

  • ALTUN, ISHAK;MINAK, GULHAN
    • 대한수학회보
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    • 제52권6호
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    • pp.1901-1910
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    • 2015
  • In the present paper, considering the Jleli and Samet's technique we give many fixed point results for multivalued mappings on complete metric spaces without using the Pompeiu-Hausdorff metric. Our results are real generalization of some related fixed point theorems including the famous Feng and Liu's result in the literature. We also give some examples to both illustrate and show that our results are proper generalizations of the mentioned theorems.