• Kyungpook Mathematical Journal
• /
• 제53권1호
• /
• pp.49-86
• /
• 2013

This article is a continuation of the paper [21]. In this paper we deal with Maass-Jacobi forms on the Siegel-Jacobi space $\mathbb{H}{\times}\mathbb{C}^m$, where H denotes the Poincar$\acute{e}$ upper half plane and $m$ is any positive integer.

• 한국융합학회논문지
• /
• 제9권7호
• /
• pp.301-308
• /
• 2018

본 연구는 장애노인 신체활동 프로그램의 구성 유형을 분석하고 효과에 대한 메타분석을 실시하였다. 검색된 전체 177편의 연구 중 본 연구를 위해 선별과정과 필수적인 요소를 갖춘 총 14편의 연구가 선정되었지만, 한 연구 안에 신체활동 효과의 범주가 중복된 경우 개별 연구로 가정하여 총 28개의 효과 크기를 계산하였다. 메타분석을 위해 선행연구들의 효과 크기와 출간오류 등을 분석하였으며, Hedges'g, funnel plot, forest plot, Egger's regression test, trim-and-fill, fail-safe N 등을 수행하였다. 그 결과 첫째, 장애노인에게 신체활동은 효과적이고 심동적, 인지적, 정의적 영역에 좋은 효과가 나타났다. 둘째, 기본운동기술, 게임 및 스포츠, 체력운동의 신체활동 프로그램은 장애노인의 심동적, 인지적, 정의적 영역에 좋은 효과가 나타났다. 셋째, 장애노인의 심동적 영역은 기본운동기술 프로그램이 가장 효과가 높았으며, 인지적 영역은 게임 및 스포츠, 정의적 영역은 체력운동 프로그램이 가장 효과가 높은 것으로 나타났다.

• Advanced Composite Materials
• /
• 제18권4호
• /
• pp.297-314
• /
• 2009

A design method is proposed to optimize the stacking sequence of laminated composite plates for desired vibration characteristics. The objective functions are the natural frequencies of the laminated plates, and three types of optimization problems are studied where the fundamental frequency and the difference of two adjacent frequencies are maximized, and the difference between the target and actual frequencies is minimized. The design variables are a set of discrete values of fiber orientation angles with prescribed increment in the layers of the plates. The four lamination parameters are used to describe the bending property of a symmetrically laminated plate, and are optimized by a gradient method in the first stage. A new technique is introduced in the second stage to convert from the optimum four lamination parameters into the stacking sequence that is composed of the optimum fiber orientation angles of all the layers. Plates are divided into sub-domains composed of the small number of layers and designed sequentially from outer domains. For each domain, the optimum angles are determined by minimizing the errors between the optimum lamination parameters obtained in the first step and the parameters for all possible discrete stacking sequence designs. It is shown in numerical examples that this design method can provide with accurate optimum solutions for the stacking sequence of vibrating composite plates with various boundary conditions.

• 한국멀티미디어학회논문지
• /
• 제10권6호
• /
• pp.754-759
• /
• 2007

Methodology of ontology building based on Web resources will not only reduce significantly the ontology construction period, but also enhance the quality of the ontology. Remarkable progress has been achieved in this regard, but they encounter similar difficulties, such as the Web data extraction and knowledge acquisition. This paper researches on the characteristics of ontology construction data, including dynamics, largeness, variation and openness and other features, and the fundamental issue of ontology construction - formalized representation method. Then, the key technologies used in and the difficulties with ontology construction are summarized. A software Model-OntoMaker (Ontology Maker) is designed. The model is innovative in two regards: (1) the improvement of generality: the meta learning machine will dynamically pick appropriate ontology learning methodologies for data of different domains, thus optimizing the results; (2) the merged processing of (semi-) structural and non-structural data. In addition, as known to all wetland researchers, information sharing is vital to wetland exploitation and protection, while wetland ontology construction is the basic task for information sharing. OntoMaker constructs the wetland ontologies, and the model in this work can also be referred to other environmental domains.

• 한국학교수학회논문집
• /
• 제15권4호
• /
• pp.719-745
• /
• 2012

초등학교 4학년 수학은 도형 영역에서 다양한 개념들이 동시에 등장하는 시기로, 특히 삼각형이나 사각형 등과 같은 평면도형의 경우 그 개념이 총체적으로 학습되는 시기이다. 본 연구는 초등학교 4학년 학생들을 대상으로 그들이 학습한 도형 개념들에 대한 이해 정도를 파악하기 위해 '정의하기' 서술형 평가를 실시하고, 또한 그들이 갖고 있는 비형식적인 지식을 살펴보기 위한 '이름짓기'(naming) 서술형 평가를 실시하였다. 이를 통해 학생들이 이해하고 있는 도형의 개념정의와 개념이미지를 분석하고, 각각의 특징 및 반복해서 등장하는 오 개념과 그 원인을 분석하여 도형을 학습하고 지도하는 과정에서 생각해볼 유의점을 제안하고 있다. 더불어 학생들의 이름짓기 활동을 통해 도형의 어떤 요소에 가장 먼저 주목하는가를 분석함으로써 이 과정에서 그들이 인식하지 못하거나 빈도가 낮게 나타난 수학적 성질과 개념을 살펴보고 동시에 학교수학에서 도형 학습을 통해 갖게 되는 비형식적 지식을 고찰함으로써 도형 영역의 학습 지도를 위한 개선 방안을 제시하고 있다.

• Korean Journal of Mathematics
• /
• 제22권1호
• /
• pp.181-206
• /
• 2014

Let $R={\bigoplus}_{\alpha{\in}\Gamma}R_{\alpha}$ be a graded integral domain graded by an arbitrary grading torsionless monoid ${\Gamma}$, and ⋆ be a semistar operation on R. In this paper we define and study the graded integral domain analogue of ⋆-Nagata and Kronecker function rings of R with respect to ⋆. We say that R is a graded Pr$\ddot{u}$fer ⋆-multiplication domain if each nonzero finitely generated homogeneous ideal of R is ⋆$_f$-invertible. Using ⋆-Nagata and Kronecker function rings, we give several different equivalent conditions for R to be a graded Pr$\ddot{u}$fer ⋆-multiplication domain. In particular we give new characterizations for a graded integral domain, to be a $P{\upsilon}MD$.

• BMB Reports
• /
• 제53권8호
• /
• pp.413-418
• /
• 2020

ANKHD1 (ankyrin repeat and KH domain containing 1) is a large protein characterized by the presence of multiple ankyrin repeats and a K-homology domain. Ankyrin repeat domains consist of widely existing protein motifs in nature, they mediate protein-protein interactions and regulate fundamental biological processes, while the KH domain binds to RNA or ssDNA and is associated with transcriptional and translational regulation. In recent years, studies containing relevant information on ANKHD1 in cancer biology and its clinical relevance, as well as the increasing complexity of signaling networks in which this protein acts, have been reported. Among the signaling pathways of interest in oncology regulated by ANKHD1 are Hippo signaling, JAK/STAT, and STMN1. The scope of the present review is to survey the current knowledge and highlight future perspectives for ANKHD1 in the malignant phenotype of cancer cells, exploring biological, functional, and clinical reports of this protein in cancer.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1999년도 제14차 학술회의논문집
• /
• pp.292-297
• /
• 1999

Evolving in artificial agent is an extremely difficult problem, but on the other hand, a challenging task. At present the studies mainly centered on single agent learning problem. In our case, we use simulated soccer to investigate multi-agent cooperative learning. Consider the fundamental differences in learning mechanism, existing reinforcement learning algorithms can be roughly classified into two types-that based on evaluation functions and that of searching policy space directly. Genetic Programming developed from Genetic Algorithms is one of the most well known approaches belonging to the latter. In this paper, we give detailed algorithm description as well as data construction that are necessary for learning single agent strategies at first. In following step moreover, we will extend developed methods into multiple robot domains. game. We investigate and contrast two different methods-simple team learning and sub-group loaming and conclude the paper with some experimental results.

• 대한수학회논문집
• /
• 제14권2호
• /
• pp.337-352
• /
• 1999

In this paper we find a geometric condition for the weaker principle of spatial averaging (PSA) for a class of polyhedral domains. Let \ulcorner be a polyhedron in R\ulcorner, n$\leq$3. If all dihedral angles of \ulcorner are submultiples of $\pi$, then there exists a parallelopiped \ulcorner generated by n linearily independent vectors {\ulcorner}\ulcorner in R\ulcorner containing \ulcorner so that solutions of $\Delta$u+λu=0 in \ulcorner with either the boundary condition u=0 or ∂u/∂n=0 are expressed by linear combinations of those of $\Delta$u+λn=0 in \ulcorner with periodic boundary condition. Moreover, if {\ulcorner}\ulcorner satisfies rational condition, we guarantee the weaker PSA for the domain \ulcorner.

• Journal of Plant Biology
• /
• 제33권3호
• /
• pp.211-215
• /
• 1990

There is a family of homologous proteins known to small GTP-inding proteins which have a GTP binding domains and GTPase activity with molecular weight of about 20000 in mammalian tissues. Recently at least 20 different small GTP-binding proteins including three rasproto-oncogene, smg25, rho, and ral gene products were identified. These proteins play a central role in cellular prolifration, neoplasia, signal transduction, terminal differentiation, and secretory process of the cells. In this review, I have briefly compiled current information on the different areas of research in the small GTP-binding proteins in an attempt to convey an overall view of the fundamental role that this family of protein in normal cellular processes. Moreover, furture goals of research in the small GTP-binding proteins as well as the possible existence of this family of proteins in plant cells were discussed.