• Title/Summary/Keyword: Heterogeneous Elements

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Finite Element Analysis of the Neutron Transport Equation in Spherical Geometry (구형에서 중성자 수송방정식의 유한요소법에 의한 해석)

  • Kim, Yong-Ill;Kim, Jong-Kyung;Suk, Soo-Dong
    • Nuclear Engineering and Technology
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    • v.24 no.3
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    • pp.319-328
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    • 1992
  • The Galerkin formulation of the finite element method is applied to the integral law of the first-order form of the one-group neutron transport equation in one-dimensional spherical geometry. Piecewise linear or quadratic Lagrange polynomials are utilized in the integral law for the angular flux to establish a set of linear algebraic equations. Numerical analyses are performed for the scalar flux distribution in a heterogeneous sphere as well as for the criticality problem in a uniform sphere. For the criticality problems in the uniform sphere, the results of the finite element method, with the use of continuous finite elements in space and angle, are compared with the exact solutions. In the heterogeneous problem, the scalar flux distribution obtained by using discontinuous angular and spatical finite elements is in good agreement with that from the ANISN code calculation.

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Standard-based Integration of Heterogeneous Large-scale DNA Microarray Data for Improving Reusability

  • Jung, Yong;Seo, Hwa-Jeong;Park, Yu-Rang;Kim, Ji-Hun;Bien, Sang Jay;Kim, Ju-Han
    • Genomics & Informatics
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    • v.9 no.1
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    • pp.19-27
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    • 2011
  • Gene Expression Omnibus (GEO) has kept the largest amount of gene-expression microarray data that have grown exponentially. Microarray data in GEO have been generated in many different formats and often lack standardized annotation and documentation. It is hard to know if preprocessing has been applied to a dataset or not and in what way. Standard-based integration of heterogeneous data formats and metadata is necessary for comprehensive data query, analysis and mining. We attempted to integrate the heterogeneous microarray data in GEO based on Minimum Information About a Microarray Experiment (MIAME) standard. We unified the data fields of GEO Data table and mapped the attributes of GEO metadata into MIAME elements. We also discriminated non-preprocessed raw datasets from others and processed ones by using a two-step classification method. Most of the procedures were developed as semi-automated algorithms with some degree of text mining techniques. We localized 2,967 Platforms, 4,867 Series and 103,590 Samples with covering 279 organisms, integrated them into a standard-based relational schema and developed a comprehensive query interface to extract. Our tool, GEOQuest is available at http://www.snubi.org/software/GEOQuest/.

Analysis of Cyber Incident Artifact Data Enrichment Mechanism for SIEM (SIEM 기반 사이버 침해사고 대응을 위한 데이터 보완 메커니즘 비교 분석)

  • Lee, Hyung-Woo
    • Journal of Internet of Things and Convergence
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    • v.8 no.5
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    • pp.1-9
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    • 2022
  • As various services are linked to IoT(Internet of Things) and portable communication terminals, cyber attacks that exploit security vulnerabilities of the devices are rapidly increasing. In particular, cyber attacks targeting heterogeneous devices in large-scale network environments through advanced persistent threat (APT) attacks are on the rise. Therefore, in order to improve the effectiveness of the response system in the event of a breach, it is necessary to apply a data enrichment mechanism for the collected artifact data to improve threat analysis and detection performance. Therefore, in this study, by analyzing the data supplementation common elements performed in the existing incident management framework for the artifacts collected for the analysis of intrusion accidents, characteristic elements applicable to the actual system were derived, and based on this, an improved accident analysis framework The prototype structure was presented and the suitability of the derived data supplementary extension elements was verified. Through this, it is expected to improve the detection performance when analyzing cyber incidents targeting artifacts collected from heterogeneous devices.

A study on expressive characteristics of graffiti in the Moschino collection by Jeremy Scott (제레미 스캇의 모스키노 컬렉션에 나타난 그라피티 표현 특징에 관한 연구)

  • Bae, Jiye;Kim, Yanghee
    • The Research Journal of the Costume Culture
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    • v.30 no.1
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    • pp.33-49
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    • 2022
  • The purpose of this study is to analyze the expressive elements and techniques of graffiti appearing in the Moschino collection by Jeremy Scott. A theoretical examination of graffiti art and Moschino's creative designer Jeremy Scott was conducted using previous studies and publications. Accordingly, keywords about the expressive elements and techniques of graffiti and Moschino were identified, as follows: expressive elements of 'message (slogan)', 'symbolized letters or forms', 'logo and brand symbol', 'graffiti (scribbles)', 'child-like elements', 'daily element's and expressive techniques of 'using primary colors (color contrast)', 'deformation', 'distortion', 'exaggeration', 'illusion (trompe l'oeil)', 'collage (repetition)', 'simplification (flattening)', and 'borrowing heterogeneous objects'. These keywords were then used to analyze Moschino's collection, comprising seven years of Moschino's collection photographs officially recorded in the fashion magazine Vogue, ranging from the 2014 F/W to 2020 F/W collections. A total of 761 photos were initially collected, from which 561 were selected by the researcher. Expressive characteristics of graffiti in Moschino's collection were analyzed, and identified in the following categories: 'child-like playfulness', 'commercial satire', 'using daily elements', and 'borrowing non-representative techniques'. Accordingly, it was confirmed that expressive characteristics of graffiti were found in the Moschino collection by Jeremy Scott. This study anticipates the possibility of various interpretations from which fashion that communicates closely with contemporary art can be understood.

Advanced Approach for Performance Improvement of Deep Learningbased BIM Elements Classification Model Using Ensemble Model (딥러닝 기반 BIM 부재 자동분류 학습모델의 성능 향상을 위한 Ensemble 모델 구축에 관한 연구)

  • Kim, Si-Hyun;Lee, Won-Bok;Yu, Young-Su;Koo, Bon-Sang
    • Journal of KIBIM
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    • v.12 no.2
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    • pp.12-25
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    • 2022
  • To increase the usability of Building Information Modeling (BIM) in construction projects, it is critical to ensure the interoperability of data between heterogeneous BIM software. The Industry Foundation Classes (IFC), an international ISO format, has been established for this purpose, but due to its structural complexity, geometric information and properties are not always transmitted correctly. Recently, deep learning approaches have been used to learn the shapes of the BIM elements and thereby verify the mapping between BIM elements and IFC entities. These models performed well for elements with distinct shapes but were limited when their shapes were highly similar. This study proposed a method to improve the performance of the element type classification by using an Ensemble model that leverages not only shapes characteristics but also the relational information between individual BIM elements. The accuracy of the Ensemble model, which merges MVCNN and MLP, was improved 0.03 compared to the existing deep learning model that only learned shape information.

A Study on Modeling Heterogeneous Embedded S/W Components based on Model Driven Architecture with Extended xUML (확장된 xUML을 사용한 MDA 기반 이종 임베디드 소프트웨어 컴포넌트 모델링에 관한 연구)

  • Kim, Woo-Yeol;Kim, Young-Chul
    • The KIPS Transactions:PartD
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    • v.14D no.1 s.111
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    • pp.83-88
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    • 2007
  • In this paper, we introduce MDA based Development Method for Embedded Software Component. This method applies MDA approach to solve problems about reusability of the heterogeneous embedded software system. With our proposed method, we produce 'Target Independent Meta Model'(TIM) which is transformed into 'Target Specific Model'(TSM) and generate 'Target Dependent Code' (TDC) via TSM. We would like to reuse a meta-model to develop heterogeneous embedded software systems. To achieve this mechanism, we extend xUML to solve unrepresented elements (such as real things about concurrency, and real time, etc) on dynamic modeling of the particular system. We introduce 'MDA based Embedded S/W Modeling Tool' with extended XUML. With this tool, we would like to do more easily modeling embedded or concurrent/real time s/w systems. It contains two examples of heterogeneous imbedded systems which illustrate the proposed approach.

Wood Anatomy and Phylogeny of Laurus ( Lauraceae )

  • Heo, Kweon
    • Plant Resources
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    • v.1 no.2
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    • pp.121-125
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    • 1998
  • Wood and bark structure of Laurus, which is considered as an important spice resources was characterized by several transitional and advanced features. Annual rings are distinct: vessel elements are moderately short and narrow, both simple and sealariform perforation plates. alternate intervascular pitting; irregularly septate fiber are present; parenchyma strands are scanty paratracheal: rays are both homogeneous and heterogeneous with multiseriate: phloem rays are dilated. Comparisons with other genera of Lauraceae suggest that Laurus is transitional and advanced state in evolutionary trends in the family.

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Design and Implementation of the SNMP based Management System for SNMP&OSI Network (SNMP기반 SNMP/OSI 통합 망 관리 시스템 설계 및 구현)

  • Lee, Young-Jun
    • The Journal of Korean Association of Computer Education
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    • v.6 no.3
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    • pp.57-64
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    • 2003
  • If we are using SNMP based network management systems and we need to manage new OSI based network elements, we have to develop new network management system. Most of the networks, which are composed of diverse. heterogeneous network nodes, are managed by CMIP based management system. The development of new management system, however, is very costly. In this paper, we show the design and implementation of the SNMP based network management system with minor changes for the management of OSI network and network elements.

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Computer-aided Design and Fabrication of Bio-mimetic Scaffold for Tissue Engineering Using the Triply Periodic Minimal Surface (삼중 주기적 최소곡면을 이용한 조직공학을 위한 생체모사 스캐폴드의 컴퓨터응용 설계 및 제작)

  • Yoo, Dong-Jin
    • Journal of the Korean Society for Precision Engineering
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    • v.28 no.7
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    • pp.834-850
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    • 2011
  • In this paper, a novel tissue engineering scaffold design method based on triply periodic minimal surface (TPMS) is proposed. After generating the hexahedral elements for a 3D anatomical shape using the distance field algorithm, the unit cell libraries composed of triply periodic minimal surfaces are mapped into the subdivided hexahedral elements using the shape function widely used in the finite element method. In addition, a heterogeneous implicit solid representation method is introduced to design a 3D (Three-dimensional) bio-mimetic scaffold for tissue engineering from a sequence of computed tomography (CT) medical image data. CT image of a human spine bone is used as the case study for designing a 3D bio-mimetic scaffold model from CT image data.

A Study on the Hypertext Characteristics of Contemporary Architecture space (현대건축공간에 나타난 하이퍼텍스트의 특성에 관한 연구)

  • Lee, Sun-Mi;Shim, Eun-Ju
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2007.11a
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    • pp.128-133
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    • 2007
  • Modern society changes so fast that it makes the borderlines obscure among all the elements in physical environments as well as culture and economy through rapid flows of Network or new media. Also these flows of changes appears and collides everywhere at the same time, which continuously generates heterogeneous environmental factors. For this reason, architecture is required to correspond with circumstances of the day, but it doesn't keep up with the speed of social changes actually because it features physically fixed construction. This research offers new direction and possibilities of architecture space elements using pluralistic and do-centering attributes of hypertext as a counterplan, and finds out how architecture space should correspond with the moving environment of modern society.

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