• 한국전자거래학회:학술대회논문집
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• 한국전자거래학회 1999년도 학술대회지 vol.2
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• pp.563-574
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• 1999

In CALS/EC environment, there are geographically dispersed heterogeneous databases and various applications. Integrated database environment provides transparent access mechanism for heterogeneous and distributed databases and interoperability between applications in various platforms. Because elements exist geographically in integrated database environment, directory service is necessary for providing unique access mechanism for elements. In this paper, we design a directory service using CORBA based access interface and object-oriented DIB model for accessing transparently to elements and interoperability with other information system.

• 한국CDE학회논문집
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• 제12권3호
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• pp.220-232
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• 2007

Current geometric modeling and analysis are commonly based on B-Rep modeling and a finite elements method respectively. Furthermore, it is difficult to represent an object whose material property is heterogeneous using the B-Rep method because the B-Rep is basically used for homogeneous models. In addition, meshes are required to analyze a property of a model when the finite elements method is applied. However, the process of generating meshes from B-Rep is cumbersome and sometimes difficult especially when the model is deformed as time goes by because the topology of deforming meshes are changed. To overcome those problems in modeling and analysis including homogeneous and heterogeneous materials, we suggest a unified modeling and analysis method based on implicit representation of the model using R-function which is suggested by Rvachev. For implicit modeling of an object a distance field is approximated and blended for a complex object. Using the implicit function mesh-free analysis is possible where meshes are not necessary. Generally mesh-free analysis requires heavy computational cost compared to a finite elements method. To improve the computing time of function evaluation, we utilize GPU programming. Finally, we give an example of a simple pipe design problem and show modeling and analysis process using our unified modeling and analysis method.

• Structural Engineering and Mechanics
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• 제68권3호
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• pp.345-358
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• 2018

Heterogeneous structure and, particularly, low resistance to tension stresses leads to different mechanical properties of the concrete in different loading situations. To solve this problem, the tension zone of concrete elements is reinforced. Development of the cracks, however, becomes even more complicated in the presence of bar reinforcement. Direct tension test is the common layout for analyzing mechanical properties of reinforced concrete. This study investigates scatter of the test results related with arrangement of bar reinforcement. It employs results of six elements with square $60{\times}60mm$ cross-section reinforced with one or four 5 mm bars. Differently to the common research practice (limited to the average deformation response), this study presents recordings of numerous strain gauges, which allows to monitor/assess evolution of the deformations during the test. A simple procedure for variation assessment of elasticity modulus of the concrete is proposed. The variation analysis reveals different deformation behavior of the concrete in the prisms with different distribution of the reinforcement bars. Application of finite element approach to carefully collected experimental data has revealed the effects, which were neglected during the test results interpretation stage.

• Journal of Communications and Networks
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• 제3권4호
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• pp.317-323
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• 2001

Traditional configuration management involves complex labor-intensive processes performed by experts. The configuration tasks such as installing or reconfiguring a system, provisioning network services and allocating resources typically involve a large number of activities involving multiple network elements. The network elements may be associated with proprietary configuration management instrumentation and may also be spread across heterogeneous network domains thereby increasing the complexity of configuration management. This paper introduces an architecture for the self-configuration of networks (SELFCON). The proposed architecture involves a directory server, which is uses to maintain configuration information. The configuration information stared in the directory server is modeled using the standard DEN specification thereby allowing effective exchange of network, system and configuration management data among heterogeneous management domains. SELFCON associates configuration intelligence with the components of the network, rather than limit it to a centralized management station. The network elements are notified about related changes in configuration policies, based upon which, they perform self-configuration. SELFCON is able to provide automation of configuration management and also an effective unifying framework for enterprise management.

• 복식
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• 제58권10호
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• pp.78-94
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• 2008

Contemporary fashion is experiencing a rise in design that combines heterogeneous things, or goes beyond the roles, boundaries, and meanings of existing things. This can be described as a 'heterogeneous fusion' that is different in character from the mixed use of heterogeneous materials, borrowed designs, and exaggeration of the silhouette that have been practices in fashion design, or the non-structure, deconstruction, and recombination that have existed since the age when post-structuralism was a central philosophy. This 'fusion' causes a 'confusion' of the generally accepted mental principle of 'one sense reacting to one stimulus', and breaks the boundary between the various senses, causing confusion in the senses of the individual, and leading him or her to experience unfamiliar feelings. In this process, all information received from external sources is not perceived as it is seen, but rather is perceived through a fusion of the individual's motivations, the environment in which it is perceived, the resulting change in emotion, and the individual's past memories. The combination of these heterogeneous elements visually accepted, or such a non-territorial combination acts as a 'fusion of senses' in the individual's perception, which causes confusion in the homeostasis of perception, and a change in emotion, and serves as a factor that causes the information to be stored in the memory for a long time. In parallel with deconstruction or non-structure, the 'heterogeneous fusion' found in modern fashion is taking root as a representative creative trend, and is represented in various forms such as the mixed use of subjects and materials, non-territorial borrowing, fusion with animal forms, fusion with non-physical geometry, and fusion with heterogeneous hair decoration.

• IEIE Transactions on Smart Processing and Computing
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• 제5권4호
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• pp.289-293
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• 2016

As more mobile devices are equipped with multi-core CPUs and are required to execute many compute-intensive multimedia applications, it is important to optimize the systems, considering the underlying parallel hardware architecture. In this paper, we implement and optimize ray-tracing application tailored to a given mobile computing platform with multiple heterogeneous processing elements. In this paper, a lightweight ray-tracing application is specified and implemented in Kahn process network (KPN) model-of-computation, which is known to be suitable for the description of real-time applications. We take an open-source C/C++ implementation of ray-tracing and adapt it to KPN description in the Distributed Application Layer framework. Then, several possible configurations are evaluated in the target mobile computing platform (Exynos 5422), where eight heterogeneous ARM cores are integrated. We derive the optimal degree of parallelism and a suitable distribution of the replicated tasks tailored to the target architecture.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 심포지엄 논문집 정보 및 제어부문
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• pp.80-82
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• 2004

Personal robot consist of various modules that have independent functions. Because personal robot has requirement that support various construction for user's tendency. Therefore, Middleware mechanism at support not only personal robot's main functional element but also embedded modules functional elements is required. Each module have various heterogeneous network interfaces and variable services and variables. Therefore, Middleware must support these various network interfaces. This paper, pointed in Controller Area Network(CAN) inreface that usually used in embedded system for control. For connect various heterogeneous network interfaces (Ethernet, RS232 etc..), it is necessary to modify bagic CAN frame format. And also make some kind of BUS topology for CAN network.

• 데이타베이스연구회지:데이타베이스연구
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• 제34권3호
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• pp.69-85
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• 2018

최근 DCAT, CKAN 같은 동종 데이터 집합에 대해 질의를 동시에 수행하여 쿼리 결과의 품질을 크게 향상하는 페더레이션 쿼리 엔진이 활발하게 연구되고 있다. 하지만 기존 연구는 비표준 쿼리를 사용하며 정적 바인딩을 적용한 몇 가지 이기종 데이터 집합 또는 동종 데이터 집합에 대해서만 질의 할 수 있다. 본 논문에서는 SPARQL을 사용하여 여러 데이터 소스에 질의하는 페더레이티드 엔진 (DRAZ)을 제안한다. 제안하는 시스템에서는 주어진 SPARQL 쿼리의 모든 트리플 패턴을 API 호출로 변환하여 해당 데이터셋에 접근한다. 마지막으로 모든 API 호출 결과를 N-트리플로 변환하고 모든 트리플 패턴을 고려한 최종 결과를 요약한다. 우리는 제안하는 DRAZ를 DCAT 및 DOI와 같은 이기종 메타 데이터 표준을 고려하여 수정된 Fedbench 벤치 마크 질의를 사용하여 평가하였다. 제안하는 시스템인 DRAZ가 JOIN 작업을 사용할 수 없음에도 불구하고 결과의 70-100 % 정확도를 달성 할 수 있음을 실험을 통해 확인하였다.

• 패션비즈니스
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• 제26권4호
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• pp.18-31
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• 2022

Fashion is one of the main environmental pollution industries. To reduce pollution, much of the deadstock clothes are given a new value by being redesigning based on the designer's competency. This study aims to promote the revitalization of redesigning by analyzing and presenting hybrid design characteristics of the Sacai design collection, as a redesigning brand, and formative element characteristics of redesigning. A theoretical study using previous research on redesigning and related books and an empirical study analyzing the Sacai Collection were conducted. Based on the study results, there are four types of redesigning processes; recombination of heterogeneous clothing structure, reorganization by reversed function and position, reorganized composition by material processing, and mixing of heterogeneous materials. In the recombination of heterogeneous clothing structures, heterogeneous materials and structures coexist by combining the clothing components with other clothing elements. The second is the reconstruction by subversion. The third is reconstruction by material processing. The fourth is a mixture of disparate materials. This study has innovative redesign features from Sacai designs, and there are plans for a follow-up study that will analyze the work of another designer who is recognized for the excellence in redesigning.

• 복식
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• 제66권3호
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• pp.18-31
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• 2016

In response to increasing preference for tattoos during the 2000s, the demand for Japanesestyle tattoo fashion increased. Ukiyoe, the prototype of Japanese tattoo popular in the Edo period has been preserved traditional expression techniques to the present, It is characterized by the following: first, the tattoos share literary lyricism through plays borrowed from the classics. second, it displays harmony and equivocal expression of heterogeneous elements samurai and kabuki mono. third, humorous images are expressed in picture-in-picture form. And fourth, presence of fixed characters based on the publication culture. Tattoo fashion is characterized by the following: First, eclectic fashion based on pastiche; second, characters emphasizing fun and comicality; third, the adoption of tattoo models for establishing brand images; and fourth, Cultural association for the new composition of culture consumption. Pastiche, harmony of heterogeneous elements, fun and comicality, and fixed characters were found to be common between tattoo ukiyoe and tattoo fashion. That is, it attempted to meet the sensitive consumers' needs to keep up with the trends by adopting tattoo incorporated into the subculture of neo pop. This shows clearly the characteristics of fashion, which creates new trends through interacting with the contemporary culture.