• 제목/요약/키워드: Convergence science

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특허 마이닝을 이용한 국방과학기술 연결망 연구 (A Study on Networks of Defense Science and Technology using Patent Mining)

  • 김경수;조남욱
    • 품질경영학회지
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    • 제49권1호
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    • pp.97-112
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    • 2021
  • Purpose: The purpose of this paper is to analyze the technology convergence and its characteristics, focusing on the defense technologies in South Korea. Methods: Patents applied by the Agency for Defense Development (ADD) during 1979~2019 were utilized in this paper. Information Entropy analysis has been conducted on the patents to analyze the usability and potential for development. To analyze the trend of technology convergence in defense technologies, Social Network Analysis(SNA) and Association Rule Mining Analysis were applied to the co-occurrence networks of International Patent Classification (IPC) codes. Results: The results show that sensor, communication, and aviation technologies played a key role in recent development of defense science and technology. The co-occurrence network analysis also showed that the convergence has gradually enhanced over time, and the convergence between different technology sectors largely emerged, showing that the convergence has been diversified. Conclusion: By analyzing the patents of the defense technologies during the last 30 years, this study presents the comprehensive perspectives on trends and characteristics of technology convergence in defense industry. The results of this study are expected to be used as a guideline for decision making in the government's R&D policies in defence industry.

고등학교 과학탐구실험 교과에 피지컬 컴퓨팅을 융합한 수업이 SW 교육 인식 및 융합 소양에 미치는 영향 (The Effects of a Physical Computing Convergence Class to the Science Exploration Experiment Subject of High School on the SW Education Recognition and the Convergence Literacy)

  • 이유라;김태영
    • 컴퓨터교육학회논문지
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    • 제23권4호
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    • pp.69-78
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    • 2020
  • 4차 산업혁명과 융합시대를 맞이하여 미래 사회 인재 육성을 위해 다양한 논의와 연구가 진행되고 있으며, 이를 통해 창의적인 융합인재에 대한 필요성이 증대되고 있다. 이에 따라 소프트웨어 중심 사회로의 변화에 발맞추어 세계 각국에서는 SW 교육을 강화하고자 노력하고 있으나 융합의 중심이 되는 정보 교과와 SW 교육의 필요성에 대한 고등학교 학생들의 인식이 부족하며, 이를 개선하기 위해서는 정보 교과와 다양한 분야와의 융합의 기회가 제공되어야 한다. 이에 본 연구에서는 과학탐구실험 교과에 정보 교육을 융합하여 창의적인 융합 역량을 발휘할 수 있는 교육 프로그램을 구성하고, 고등학교 학생들에게 9차시에 걸쳐 피지컬 컴퓨팅을 활용한 융합 수업을 적용하였다. 실험 결과 과학과 정보의 융합 수업을 실시한 실험 집단의 SW 교육에 대한 인식이 개선되었으며, 또한 학습자의 융합 소양 향상에 있어서도 융합 수업을 실시한 실험 집단이 일반 과학실험 수업을 실시한 통제 집단에 비해 유의미한 차이가 있음을 확인하였다.

WEAK AND STRONG CONVERGENCE CRITERIA OF MODIFIED NOOR ITERATIONS FOR ASYMPTOTICALLY NONEXPANSIVE MAPPINGS IN THE INTERMEDIATE SENSE

  • Banerjee, Shrabani;Choudhury, Binayak Samadder
    • 대한수학회보
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    • 제44권3호
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    • pp.493-506
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    • 2007
  • In this paper weak and strong convergence theorems of modified Noor iterations to fixed points for asymptotically nonexpansive mappings in the intermediate sense in Banach spaces are established. In one theorem where we establish strong convergence we assume an additional property of the operator whereas in another theorem where we establish weak convergence assume an additional property of the space.

WEAK AND STRONG CONVERGENCE THEOREMS FOR A SYSTEM OF MIXED EQUILIBRIUM PROBLEMS AND A NONEXPANSIVE MAPPING IN HILBERT SPACES

  • Plubtieng, Somyot;Sombut, Kamonrat
    • 대한수학회보
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    • 제50권2호
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    • pp.375-388
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    • 2013
  • In this paper, we introduce an iterative sequence for finding solution of a system of mixed equilibrium problems and the set of fixed points of a nonexpansive mapping in Hilbert spaces. Then, the weak and strong convergence theorems are proved under some parameters controlling conditions. Moreover, we apply our result to fixed point problems, system of equilibrium problems, general system of variational inequalities, mixed equilibrium problem, equilibrium problem and variational inequality.

CONVERGENCE RATE OF EXTREMES FOR THE GENERALIZED SHORT-TAILED SYMMETRIC DISTRIBUTION

  • Lin, Fuming;Peng, Zuoxiang;Yu, Kaizhi
    • 대한수학회보
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    • 제53권5호
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    • pp.1549-1566
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    • 2016
  • Denote $M_n$ the maximum of n independent and identically distributed variables from the generalized short-tailed symmetric distribution. This paper shows the pointwise convergence rate of the distribution of $M_n$ to exp($\exp(-e^{-x})$) and the supremum-metric-based convergence rate as well.

문헌정보학과 커뮤니케이션연구의 집중(convergence)에 관한 고찰 (A study on the convergence of library and information science and communication studies)

  • 윤혜영
    • 한국도서관정보학회지
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    • 제20권
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    • pp.471-495
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    • 1993
  • This paper focuses on issues in the convergence of library and information science and communication studies. Common research topics in both fields include scholarly communication, knowledge gaps, invisible colleges, diffusion of innovations, human interaction with communication technologies, information-seeking behavior, information theory, and the information society. To consider these two disciplines in this broader context, this paper compares these two discipline's paradigms, suggests four models of convergence, and traces bibliometric studies performed. This study may be of use to those studying scholarly communication or bibliometrics, to faculty constructing curricula in either of the disciplines, to communication and information science scholars seeking new areas of research, and to collection development librarians in drawing the boundaries of these disciplines.

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공학·과학·미학·인문학 및 사회과학 분야간 지식융합을 위한 수렴영역 분석 (Analysis on the Convergence for Knowledge Fusion in the Field of the Engineering, Science, Aesthetics, Humanities and Social Sciences)

  • 박성미
    • 수산해양교육연구
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    • 제25권5호
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    • pp.1031-1045
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    • 2013
  • The purpose of this study was to analyze on the convergence for knowledge fusion in the filed of the engineering, science, aesthetics, humanities and social sciences. For the study, the related literatures were reviewed focusing on the convergence in the basis of the inter-disciplinary. In addition, interviews with 5 professors in the field of the engineering, science, aesthetics, humanities and social sciences were analyzed. The keys of analysis were perspective of academic disciplines. The findings of this study were as follows; most of professors recognized the inter-disciplinary of engineering, science, aesthetics, humanities and social sciences. But, there were some barriers engineering of professors in inter-disciplinary.

융합보안 서비스 사이언스를 위한 기상정보 활용모델 연구 (A Study about Practical Model of Meteorological Information for Convergence Security Service Science)

  • 최경호;이동휘;김민수;김종민;김귀남
    • 융합보안논문지
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    • 제13권3호
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    • pp.79-84
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    • 2013
  • 본 연구에서는 보안서비스 제공과정을 비즈니스 프로세스로 살펴보고, 여기서 나타나는 문제점을 해결하기 위한 융합보안기술의 적용 및 이의 프로세스화를 통한 개선된 서비스 혁신모델을 제시해 보고자 한다. 이를 위해 대표적으로 시설관리, 무인경비 등을 제공하는 물리보안 분야를 살펴보고, 여기서 나타나는 한계점을 해결하기 위해 적용 가능한 융합보안기술로 기상정보를 활용하는 방법을 서비스 사이언스 관점에서 제안한다. 본 연구의 기여도는 첫째, 서비스 혁신 관리를 통해 융합보안기술을 기반으로 위험관리 방법을 개선했다는 것이며, 둘째, 서비스의 효과를 계량화하여 위험관리 활동을 정량적 수치로 평가할 수 있다는 것이며, 마지막으로, 기상정보를 활용한 물리보안 서비스 제공 방법론을 체계적으로 프레임워크화 했다는 것이다.

Assessment of wall convergence for tunnels using machine learning techniques

  • Mahmoodzadeh, Arsalan;Nejati, Hamid Reza;Mohammadi, Mokhtar;Ibrahim, Hawkar Hashim;Mohammed, Adil Hussein;Rashidi, Shima
    • Geomechanics and Engineering
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    • 제31권3호
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    • pp.265-279
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    • 2022
  • Tunnel convergence prediction is essential for the safe construction and design of tunnels. This study proposes five machine learning models of deep neural network (DNN), K-nearest neighbors (KNN), Gaussian process regression (GPR), support vector regression (SVR), and decision trees (DT) to predict the convergence phenomenon during or shortly after the excavation of tunnels. In this respect, a database including 650 datasets (440 for training, 110 for validation, and 100 for test) was gathered from the previously constructed tunnels. In the database, 12 effective parameters on the tunnel convergence and a target of tunnel wall convergence were considered. Both 5-fold and hold-out cross validation methods were used to analyze the predicted outcomes in the ML models. Finally, the DNN method was proposed as the most robust model. Also, to assess each parameter's contribution to the prediction problem, the backward selection method was used. The results showed that the highest and lowest impact parameters for tunnel convergence are tunnel depth and tunnel width, respectively.

BV - 족 계수를 갖는 푸리에 급수의 $L^1(T^1)$ - 수렴성에 관하여 (On $L^1(T^1)$ - Convergence of Fourier Series with BV - Class Coefficients)

  • 이정오
    • 통합자연과학논문집
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    • 제1권3호
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    • pp.216-220
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    • 2008
  • In general the Banach space $L^1(T^1)$ doesn't admit convergence in norm. Thus the convergence in norm of the partial sums can not be characterized in terms of Fourier coefficients without additional assumptions about the sequence$\{^{\^}f(\xi)\}$. The problem of $L^1(T^1)$-convergence consists of finding the properties of Fourier coefficients such that the necessary and sufficient condition for (1.2) and (1.3). This paper showed that let $\{{\alpha}_{\kappa}\}{\in}BV$ and ${\xi}{\Delta}a_{\xi}=o(1),\;{\xi}{\rightarrow}{\infty}$. Then (1.1) is a Fourier series if and only if $\{{\alpha}_{\kappa}\}{\in}{\Gamma}$.

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