• 대한조선학회논문집
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• 제48권3호
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• pp.275-280
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• 2011

In the present study, a unified viscoplastic-damage model has been applied in order to describe the mechanical characteristics of fresh water ice such as nonlinear material behavior and volume fraction. The strain softening phenomenon of fresh water ice under quasi-static compressive loading has been evaluated based on unified viscoplastic model. The material degradation such as growth of slip/fraction has quite close relation with material inside damage. The volume fraction phenomenon of fresh water ice has been identified based on volume fraction (nucleation and growth of damage) model. The viscoplastic-damage model has been transformed to the fully implicit formulation and the discretized formulation has been implemented to ABAQUS user defined subroutine (User MATerial: UMAT) for the benefit of application of commercial finite element program. The proposed computational analysis method has been compared to uni-axial compression test of fresh water ice in order to validate the compatibilities, clarities and usefulness.

• 한국디지털건축인테리어학회논문집
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• 제11권2호
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• pp.13-19
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• 2011

Starting in modern times by Le Corbusier, architectures made by concretes are still developing in these times. For several decades, the shape of box architecture has been the most familiar type of buildings. Of course "The concrete is the type of box building" isn't always right, but what we have most seen was the buildings which has been stylized and made by concretes. Through modern times to these days based on international style and functionalism, the type of box building was the most effective and good profit type of architecture which has not disregarded the capitalism. Free-form building are becoming a common place, and many of these are designed and constructed using sophisticated techniques. The main technique being used is Generative Technology of Form for free-form construction. People's interest is growing in this, and it is becoming widely used both abroad and domestically. The purpose of this paper is to investigate the use of Generative Technology of Form which is a digitally adapted design methodology in architecture. The digital design process used for contemporary buildings share many typical features that exist within a standard digital template, but also an increasing amount of mass customization that has to be produced at an additional cost. This paper will summarize these features in terms of free-form architecture, and in terms of the digital design process. In fact, 3D models have to be conceded as main design products considering features of Free Form Design Architecture. However it is practical to design twice over, because all forms of architectural drawings are 2D. From now on, design of Free Form Design Building is not to separate between design process and practical process, but to compound them as unified design system applied the process to communicate information interactively. For this, it should be required to impose unified digital design process and perform researches about effective way to apply in the field of Free-form Design Architecture.

• 한국통신학회논문지
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• 제21권11호
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• pp.2869-2885
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• 1996

There werer many researches on the switch system for high speed netowrk such as B-ISDN and the server system for the multimedia services respectively. But, in case of simple connection of these two systems, we have to suffer the bottlenck problem of data transmission, and pay the wasteful expenditure because of duplicated architecture of both systems such as interconnecting network at the switch and the server. Therefore, we propse the unified architecture of switehces and servers, which can be used as switches and servers simultaneously. This is based on the hybercube structure. The links are used iterconnection network of switch system, and each node has the subscriber subsystem and the server subsystem. The proposed architecure has the benifits as follows; the easy espansion of capacity due to the scalability,the simple system development and maintenance because of the equivalance of each nodes, the high reliability against the fault of nodes and links due to the existence of the many alternative links between nodes, the easy flow and QoS managment due to the non-blocking data transmission between any two nodes, the flexible adaptation for additional new services owing to simple insertion server board to node. In this paper, we present overal configuration and node component of proposed architecture, and the procesing flow for the various services.

• 교육시설 논문지
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• 제25권4호
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• pp.3-9
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• 2018

In recent years, schools in the urban areas are also showing their interest in the integrated school and considering adapting the actual operation method. That is why decline of the school-age population is not limited to rural areas any more, and decreasing number of students in urban schools is raised as a social issue to reconsider the continuation of schools. To solve the problems of the small-scale schools in the urban area, the integrated school is being considered as an alternative. Furthermore, the newly built schools in the urban development areas are also planned as the integrated school. Accordingly, the purpose of this study is to examine the cases of integrated schools in urban area of developed countries and to analyze their architectural planning considerations in practice.

• 건축역사연구
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• 제4권2호
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• pp.45-64
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• 1995

This study examines the Section of 'Housing Regulations' in The Chronicles of the Three States (${\ulcorner}$三國史記${\lrcorner}$ 屋舍條) to verify the residential architecture during the period of the Unified Silla Dynasty. Through the study, the basic architectural terms in the Section of 'Housing Regulations', such as the size of the building, glazing roof tile, animal-shaped ornamental piece on roof ridge, eave purlin, wooden bracket arms, roof decoration, decorative paintings, stone steps, wall structure, blind screen, folding screen, bedstead, and gate are analyzed, interpreted and defined, and, in addition, the forms and styles of the residential architecture during the period of the Unified Silla Dynasty are basically reconstructed.

• 대한임베디드공학회논문지
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• 제7권3호
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• pp.121-127
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• 2012

An integrated crypto engine for encryption and decryption of AES algorithm based on unified data-path architecture is efficiently designed and implemented in this paper. In order to unify the design of encryption and decryption, internal steps in single round is adjusted so as to operate with columns after row operation is completed and efficient method for a buffer is developed to simplify the Shift Rows operation. Also, only one S-box is used for both key expansion and crypto operation and Key-Box saving expended key is introduced provide the key required in encryption and decryption. The functional simulation based on ModelSim simulator shows that 164 clocks are required to process the data of 128bits in the proposed engine. In addition, the proposed engine is implemented with 6,801 gates by using Xilinx Synthesizer. This demonstrate that 40% gates savings is achieved in the proposed engine, compared to individual designs of encryption and decryption engine.

• International Journal of Contents
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• 제10권2호
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• pp.67-73
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• 2014

With a population of around 237,424,363 in 33 provinces, Indonesia is one developing countries that needs an excellent School Management Information System (SMIS) to accomplish its educational mission. To reach the goal, it is necessary to know the rules, culture of school and related data prior to building the SMIS. This study is focused on the Indonesian National Education Standards. It is has nine standards that are described by the Regulation of Education Ministry. To manage the schools' organization, this paper aims to develop a SMIS based on the Indonesian National Education Standards by using ARIS(Architecture of Integrated Information System) to help schools run efficiently. The new system will be built using UML(Unified Modeling Language), this new system conforms to the education rules of the government. Finally, the conclusion and future research are described.

• IEIE Transactions on Smart Processing and Computing
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• 제3권6호
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• pp.397-403
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• 2014

A new video compression standard called High Efficiency Video Coding (HEVC) has recently been released onto the market. HEVC provides higher coding performance compared to previous standards, but at the cost of a significant increase in encoding complexity, particularly in motion estimation (ME). At the same time, the computing capabilities of Graphics Processing Units (GPUs) have become more powerful. This paper proposes a parallel integer-pel ME (IME) algorithm for HEVC on GPU using the Compute Unified Device Architecture (CUDA). In the proposed IME, concurrent parallel reduction (CPR) is introduced. CPR performs several parallel reduction (PR) operations concurrently to solve two problems in conventional PR; low thread utilization and high thread synchronization latency. The proposed encoder reduces the portion of IME in the encoder to almost zero with a 2.3% increase in bitrate. In terms of IME, the proposed IME is up to 172.6 times faster than the IME in the HEVC reference model.

• KEPCO Journal on Electric Power and Energy
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• 제2권2호
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• pp.233-244
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• 2016

Smart grid is called it as a system of systems. There are diverse types of systems in smart grid environment. Therefore, one of key factors to achieve smart grid successfully is interoperability among diverse systems. To secure interoperability, smart grid operating system should be developed complied with standards in terms of the data representation and communication. Common Information Model (CIM) and OLE Process for Control - Unified Architecture (OPC-UA) are the representative international standards in smart grid domain. Each standard defines data representation and communication by providing common information model and the unified architecture. In this paper, we explain a smart grid platform that we have developed to comply with CIM and OPC-UA standards for secure interoperability among numerous legacy systems.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2022년도 제65차 동계학술대회논문집 30권1호
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• pp.349-351
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• 2022

본 논문에서는 계산양이 큰 볼륨 렌더링을 구현할 수 있는 파이썬 기반의 CUDA(Computed Unified Device Architecture) 커널(Kernel) 디자인에 대해서 소개한다. 최근에 파이썬은 인공지능뿐만 아니라 서버, 보안, GUI, 데이터 시각화, 빅 데이터 처리 등 다양한 분야에서 활용이 되고 있기 때문에 인터페이스만을 위한 언어라는 색을 탈피한지 오래이다. 본 논문에서는 대용량 병렬처리 기법인 NVIDIA의 CUDA를 이용하여 파이썬 환경에서 커널을 디자인하고, 계산양이 큰 볼륨 렌더링이 빠르게 계산되는 결과를 보여준다. 결과적으로 C언어 기반의 CUDA뿐만 아니라, 상대적으로 개발이 효율적인 파이썬 환경에서도 GPU(Graphic Processing Unit)기반 애플리케이션 개발이 가능하다는 것을 볼륨 렌더링을 통해 보여준다.