• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2020년도 제62차 하계학술대회논문집 28권2호
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• pp.321-322
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• 2020

본 논문에서는 대한민국에서 드론을 포함한 UAV를 합법적으로 비행할 수 있도록 관련 구역 정보를 제공하는 서비스를 구현한다. Mapbox API를 이용하여 3D지도를 설정하고 드론 관련 구역 정보를 레이어화 한다. 레이어는 GL JS를 이용하여 인터페이스를 구성해 지도상에 나타낸다. GL JS로 검색, 네비게이션 기능의 인터페이스를 구성한다. 작성한 결과물을 서버에 업로드하여 서비스를 구현하였다.

• Archives of Pharmacal Research
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• 제19권4호
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• pp.292-296
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• 1996

By human intestinal bacteria, glycyrrhizin (18${\beta}$-glycyrrhetic acid ${beta}$-D-glucuronyl.${\alpha}$-D-glucuronic acid, GL) and baicalin (baicalein ${\beta}$-D-glucuronic acid) were metabolized to glycyrrhetinic acid and baicalin, respectively. However, .${\alpha}$-glucuronidase of Bacteroides JY-6 isolated from human intestinal bacteria hydrolyzed GL or 18.${\beta}$-glycyrrhetinic acid ..${\alpha}$-D-glucuronic acid to 18${\beta}$-glycyrrhetic acid but did not baicalin. However, E. coli ${\beta}$-glucironidase from human intestinal bacteria hydrolyzed baicalin to baicalein, but did not GL.${\beta}$-Glucuronidase of mammalian tissues hydrolyzed both GL and baicalin.

• 대한수학회보
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• 제52권4호
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• pp.1327-1338
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• 2015

In this paper, we introduce and study the w-weak global dimension w-w.gl.dim(R) of a commutative ring R. As an application, it is shown that an integral domain R is a $Pr\ddot{u}fer$ v-multiplication domain if and only if w-w.gl.dim(R) ${\leq}1$. We also show that there is a large class of domains in which Hilbert's syzygy Theorem for the w-weak global dimension does not hold. Namely, we prove that if R is an integral domain (but not a field) for which the polynomial ring R[x] is w-coherent, then w-w.gl.dim(R[x]) = w-w.gl.dim(R).

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2008년도 제39차 동계학술발표논문집 16권2호
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• pp.61-64
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• 2009

본 연구는 OpenGL을 이용하여 3차원 그래픽으로 가상캠퍼스 맵을 구현한다. 매핑 효과, 블랜딩 이론등을 적용하여 사실적인 물체를 구현하는 것을 목표로 한다. 매핑 효과는 조금 더 사실적인 캠퍼스 모습을 보여준다. 그리고 가상캠퍼스에 사용될 지형지물은 그래픽 기법과 블랜딩 이론을 적용하여 구현함으로써 구조를 보여준다. 본 논문은 데이터의 용량과 랜더링 시간을 줄이고, 전체적인 향상을 위한 알고리즘을 개발하는데 중점을 둔다.

• 약학회지
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• 제44권6호
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• pp.566-571
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• 2000

We have previously observed that glycyrrhizin(GL) inhibits the proliferation of transplanted-L1210 cells via the production of nitric oxide from peritoneal macrophages. In the present study, we examined the effect of GL on Iymphocytes subpopulation change of L1210 cells-transplanted mice. GL increased the population of $CD4^-CD8^+$ cells of thymocytes in L1210 cells-transplanted mice and the lucigenin chemiluminescence of human polymorphonuclear cells. These results suggest that the proliferation of transplanted-L1210 cells is partly inhibited by an enhancement of cytotoxic T cells population and phagocytic activity in GL-administered mice.

• Journal of Advanced Marine Engineering and Technology
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• 제30권2호
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• pp.311-318
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• 2006

In this study, the performance tests for single and dual micro processor configurations are performed to investigate how the accelerated OpenGL components and applications are dependent on processor configurations. At present, many major providers of the engineering graphics workstations have recommended that multiprocessors are better than single processor. However, we confirmed that the single processor configuration is more faster and more effective than competitive configurations and suggested the economic method to improve the performance of the engineering graphics workstations.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제9권3호
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• pp.213-218
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• 2009

This paper describes a classical algorithm carrying out dynamic 3D obstacle recognition for autonomous underwater vehicles (AUVs), Support Vector Machines (SVMs). SVM is an efficient algorithm that was developed for recognizing 3D object in recent years. A recognition system is designed using Support Vector Machines for applying the capabilities on appearance-based 3D obstacle recognition. All of the test data are taken from OpenGL Simulation. The OpenGL which draws dynamic obstacles environment is used to carry out the experiment for the situation of three-dimension. In order to verify the performance of proposed SVMs, it compares with Back-Propagation algorithm through OpenGL simulation in view of the obstacle recognition accuracy and the time efficiency.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2016년도 춘계학술발표대회
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• pp.520-521
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• 2016

본 논문은 기존의 벽돌 깨기 게임을 OpenGL 라이브러리를 이용하여 PC 기반의 게임으로 설계 및 구현하였다. 최근 들어 스마트폰 시장이 확대되면서 빠르고 간편하게 즐길수 있는 고전게임이 스마트폰 게임 시장에서 다시 주목받고 있다. 따라서 본 논문에서는 대표적인 그래픽 라이브러리인 OpenGL 1.0을 사용하여 벽돌 깨기 시뮬레이션 게임을 구현하였다. 구현된 벽돌 깨기 게임은 간단한 물리 연산을 이용해 공의 속도 및 각도를 제어할 수 있고, 충돌 검사 및 처리 알고리즘을 적용하여 기본적인 게임 기능들을 구현하였다.

• 대한수학회지
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• 제41권1호
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• pp.107-130
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• 2004

A $JB^{*}-triple$ is a Banach space A on which the group Aut(B) of biholomorphic automorphisms acts transitively on the open unit ball B of A. In this case, a triple product {$\cdots$} from $A\;\times\;A\;\times\;A\;to\;A$ can be defined in a canonical way. If A is also the dual of some Banach space $A_{*}$, then A is said to be a JBW triple. A projection R on A is said to be structural if the identity {Ra, b, Rc} = R{a, Rb, c, }holds. On $JBW^{*}-triples$, structural projections being algebraic objects by definition have also some interesting metric properties, and it is possible to give a full characterization of structural projections in terms of the norm of the predual $A_{*}$ of A. It is shown, that the class of structural projections on A coincides with the class of the adjoints of neutral GL-projections on $A_{*}$. Furthermore, the class of GL-projections on $A_{*}$ is naturally ordered and is completely ortho-additive with respect to L-orthogonality.

• ETRI Journal
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• 제41권3호
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• pp.277-288
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• 2019

VWorld is run by the Ministry of Land, Infrastructure, and Transport of South Korea and provides national spatial information, such as aerial images, digital elevation models, and 3D structural models. We propose herein an open platform for 3D spatial information based on WebGL using spatial information from VWorld. WebGL is a web-based graphics library and has the advantage of being compatible with various web browsers. Our open platform is also compatible with various web browsers. Accordingly, it is easily accessible via the VWorld site and uses the three-dimensional (3D) map program. In this study, we describe the proposed platform configuration, and the requests, management, and visualization approaches for VWorld spatial information data. Our aim is to establish an approach that will provide a stable rendering speed even on a low-end personal computer without a graphics processing unit based on a quadtree structure. We expect that users will be able to visualize 3D spatial information through the VWorld open platform, and that the proposed platform will become the basis for various applications.