• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.540-543
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• 2013

This paper describes an implementation of a unified ALU on multi-core GPGPU based on SIMT architecture. Our unified ALU can operate conditional branch instructions, data movement instructions, integer arithmetic instructions and floating-point arithmetic instructions. Since multi-core GPGPU contains a lot of ALU for parallel processing of various types, the main point of this paper is to design the minimum size ALU by unifying similar processing of each operations on circit level. All instrunctions were tested by making a test program. And we compare this results with results of CPU operations to verify our ALU. Our unified ALU's gate size is approximately 20,000 and the maximum operation frequency is 430MHz.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.969-972
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• 2010

소프트웨어 제품의 품질을 보장하기 위해서는 제품을 개발하는 단계에 미리 결함율을 예측하여 원하는 수준의 품질을 확보하는 것이 중요하다. 결함은 사용자의 요구사항이 제품으로 구현되고 기능에 대한 테스트가 수행되는 단계에 가장 객관적이며 정량적으로 관리될 수 있다. 따라서 본 논문에서는 통합테스트에 대한 계획을 수립하는 단계에 제품에 대한 결함율을 미리 예측하여 제품 결함율이 조직의 관리범위에 들어올 수 있도록 통제하는 결함예측모델을 제안한다. 조직의 제품 결함율 베이스라인을 설정하고 통합테스트 결함율에 영향을 미치는 변수들과의 회귀분석을 통해 통합테스트 결함예측모형을 구축한다. 또한 제품 결함율에 영향을 미치는 변수들과의 회귀분석을 통해 제품 결함예측모형을 구축하고 결함예측모형을 활용해 제품 결함율을 분석 및 통제한다. 본 논문에서 제안한 결함예측모델은 실제 프로젝트에 적용하여 실효성을 검증하였으며 제품이 완성되기 전에 결함율을 예측하여 통제할 수 있게 함으로써 소프트웨어 품질을 향상한다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.19 no.2
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• pp.45-62
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• 2008

A reference ontology for cultural heritage information, CIDOC Conceptual Reference Model (CRM), has promoted cooperation among memory institutions and FRBRoo, re-constructed version of FRBR based on CRM, was developed. In this study, the harmonized ontology version of FRBR, FRBRoo, was analysed and, as a results, the followings are suggested: empowered interoperability for information exchange and integration among cultural institutions and designing more comprehensible inference rules than original FRBR model. Moreover, the by-products of harmonization gave opportunity to recognize internal inconsistencies of the FRBR model and CRM itself and refine them.

• Journal of Internet Computing and Services
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• v.11 no.1
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• pp.35-48
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• 2010

For the next generation mobile communication system, diverse wireless network techniques such as beyond 3G LTE, WiMAX/WiBro, and next generation WLAN etc. are proceeding to the form integrated into the All-IP core network. According to this development, Beyond 3G integrated into heterogeneous wireless access technologies must support the vertical handover and network to be used of several radio networks. However, unified management of each network is demanded since it is individually serviced. Therefore, in order to solve this problem this study is introducing the theory of Common Radio Resource Management (CRRM) based on Generic Link Layer (GLL). This study designs the structure and functions to support the vertical handover and propose the vertical handover algorithm of which policy-based and MCDM are composed between LTE and WLAN systems using GLL and CRRM. Finally, simulation results are presented to show the improved performance over the data throughput, handover success rate and the system service cost.

• Journal of agriculture & life science
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• v.45 no.6
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• pp.21-32
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• 2011

This research is intended to study literatures relating to western rocking chairs style in early 20th century in order to provide basic data of designs for rockers of today in Korea and investigate characteristics of rocking chair from academic, formative and pragmatic perspectives. During the first half of 20th century, western rocking chairs (1925~1945) embodied actively the simple functionalism concept that furniture design must follow functionality considerations. Therefore, bare wood rocking chairs were without any surface decoration and tubular steel frame rocking chairs often included black leather upholstery in a bold attempt to express exposed structure. And the fact that tubular steel produced such lightweight furniture was crucial importance. Many Modernist designer created curvaceous lines of new pattern changes in their furniture. The structure of Modern rocking chair became all-important, for stylistic as well as functional reasons. Designers equated exposed structure of tubular steel and wooden frame with integrity and rationality and create an equalitarian style of design. Especially, designers in the early 20th century did use various brilliantly colored upholstery and wooden frame with simple forms of modern characteristics.

• Journal of Industrial Convergence
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• v.19 no.6
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• pp.177-186
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• 2021

This review aims to propose a model that can reinterpret the abnormal and functional connections between cognitive processes and emotional regulations based on the neurocognitive networks for a comprehensive understanding of pathologic processes and treatment approach of depression and anxiety disorder. Through the processes of rebuilding the network model for depression and anxiety disorder, it was confirmed that depression can be said to be 'over-immersion in self-referencing' due to hyper-activation of default mode network (DMN), and anxiety disorders to be 'disconnection with self-referencing' due to hypo-activation of DMN. The attempts to link up between abnormal activation and pathological function of DMN which is thought to be involved in self-referential processing associated with self-consciousness and projection among neurocognitive networks may be another starting point that can afford to be suggestive in integrated interpretation and therapeutic approach to depression and anxiety disorder.

• Korean Security Journal
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• no.12
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• pp.271-289
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• 2006

Private security industry in South Korea has rapidly been growing in recent years. However, such a rapid growth is being criticized for its focus on external results, which has produced a number of problems. The continued growth of private security industry can be only based upon substantive and qualitative development. In this aspect, it is necessary to consider the global trends of the private security industry, particularly the recent trends of the U. S. security industry which has led the global security industry. This is because the recent trends of the U. S. private security industry would guide the future direction of the private security industry in South Korea. The U. S. private security industry has been replacing the role of law enforcement agencies including the police, from crime prevention to investigation and disaster management, not to mention asset protection and loss prevention. The recent trends of the U. S. security industry appears to be summarized by such characteristics as variety, specialty, and integration, which might account for the structural problem of the private security industry in South Korea. In short, the substantive and qualitative development of the private security industry in South Korea should be accomplished by strengthening its specialty and integration, and also widening its variety.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.7
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• pp.1295-1300
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• 2006

In this paper, we have developed RFID systems with integrated tag location data for efficient logistics information systems. These are consist of RFID readers with GPS module and RFID networks to service tag location data. The developed RFID readers can get location informations Of the tags, transfer them high speed by TCP/IP protocols, and operate as web servers. And we presented a simple service network system based on EPC network to service both location and tag data. The proposed system can be applicable to tracebility or finding locations of the products.

• Journal of the Korean School Mathematics Society
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• v.16 no.3
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• pp.621-636
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• 2013

In this paper we intended to present the case of mentorship program for the gifted in elementary mathematics education, which is related with Waldorf education. We installed the program to four six-grade students during six months. We focused on cultivating integrated perspective, aesthetic perspective and substantial skills. For the aim we dealt with the item, construction based on the aesthetic experiences. Finally we presented three main ideas, construction of regular polygons and flowers, construction of islamic design, and farmland cleanup with construction. We also contained the students' project in this paper.

• The Journal of the Korea Contents Association
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• v.16 no.6
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• pp.270-282
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• 2016

A community center is situated near the residential areas and is the public facility that acts as the core of local cultural activities. A community center, as the general cultural activities increases, is transforming into a facility that promotes the community restoration and living convenience such as welfare, sports, art activities, and education etc. beyond location of simple leisurely activities. This study considers local residents' accessibility through the renovation of preexisting community center.