• Title/Summary/Keyword: PC Project

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Bundled SW Design with Application Method of Diary Study (번들소프트웨어 디자인을 위한 다이어리 스터디 적용 연구)

  • Ha, Kwang Soo
    • The Journal of the Korea Contents Association
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    • v.12 no.11
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    • pp.49-57
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    • 2012
  • Recently as the user experience's importance has been emphasized, there has been many tries of various research methodology in order to understand the user. Specially, as the political investigation method's user understanding method based on the statistical analysis so far has encountered a limit, there has been a continuous tendency to try to introduce a humanitarian or cultural anthropological methodology. As part of this effort, there has been many tries of various approach methods of the Ethnography which is the cultural anthropological typical research methodology, but among those the Diary Study Method is mentioned as one of the effective methodologies. Therefore this thesis applies the Diary Study Method to the notebook PC bundle SW's attitude research and tries a deep rooted research about the user attitude. Also centered to the project of understanding the notebook PC bundle SW's user receptivity. it shows a specific example of the Diary Study applied to the user understanding. Through this process, we will examine the summary about the Ethnography research method, and will discuss an effective research methodology by through the process of analyzing and deducting the user inclination by applying and designing the Diary Study to the project. That is to say, it was progressed by actually applying the research methodology through a specific case, with the purpose of breaking away from the textbook discussion and progress with an application aspect discussion. Through the current research, we will verify an active user-inclined process about the user's notebook PC SW, and it is expected to be useful in establishing a SW UX strategy and distribution related to the bundle software.

Performance Analysis of a CFD code in the Several PC Cluster System (다양한 PC 클러스터 시스템 환경에서 CFD 코드의 성능 분석)

  • Cho Kum Won;Hong Jungwoo;Lee Sangsan
    • 한국전산유체공학회:학술대회논문집
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    • 2001.05a
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    • pp.161-169
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    • 2001
  • At the end of 1999, the TeraCluster Project in the KISTI Supercomputing Center was initiated to explore the possibility of PC clusters as a scientific computing platform to replace the Cray T3E system in KISTI by 2002. Since actual performance of a computing system varies significantly for different architectures, representative in-house codes from major application fields were executed to evaluate the actual performance of systems with different combination of CPU, network and network topology. As an example of practical CFD(Computational Fluid Dynamics) simulations, the flow past the Onera-M6 wing and the flow past a infinite wing were simulated on a clusters of Linux and several other hardware environments.

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Waterproofing technology for PC double arch tunnel using synthetic rubber polymer gel and cooper sheet for root barrier (합성고무 폴리머 겔과 구리 방근시트를 이용한 P.C 쌍아치 터널 구조물 방수기술)

  • Lee, Jong-Yong;Park, Sang-Tai;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2020.11a
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    • pp.44-45
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    • 2020
  • The purpose of this study was to contemplate the effectual waterproofing materials and construction methods for the restoration of underground infrastructures using precast arches(PC-Arch). Until now, there were no proper waterproofing guidelines for waterproofing precast arch tunnel when restoring cultural heritage or building underground infrastructures for noise control. Asphalt membrane sheets were commonly used, but the efficacy of waterproofing done on the precast segment was vulnerable. This study aims to examine the Synthetic Rubber Polymerised Gel(SRPG) proposed in ISO TR 16475, a guideline for the repair of water-leakages, and to demonstrate field applicability based on the waterproofing solution used on the road improvement project in front of Changgyeonggung Palace in Yulgok-ro, Seoul, Republic of Korea.

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A Study on the Lifting Progress for Composite Precast Concrete Members of Green Frame (그린 프레임 합성 PC부재의 양중공정 분석 연구)

  • Joo, Jin-Kyu;Kim, Shin-Eun;Lee, Gun-Jea;Kim, Sun-Kuk;Lee, Sung-Ho
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.3
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    • pp.34-42
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    • 2012
  • Green frame technology intended to facilitate the remodeling of apartment housing complexes in Korea and extend their service life has been developed. Green frame design is a Rahmen structure using composite precast concrete members and, unlike a bearing-wall structure, lifting and installing structural members accounts for major steps of structural construction. Therefore, if green frame structure construction is to be scheduled appropriately, systematic lifting plan needs to be developed in advance. Development of lifting plan also requires unit lifting process of composite PC members (columns and beams) that consist of green frame to be analyzed first. Therefore, this study attempts to analyze the lifting process of composite PC members used in green frame structure. To that end, lifting procedure and time of composite PC column and beam are estimated and applied to a project case to analyze the lifting cycle of reference floor. Outcomes produced herein will be used as key data for development of lifting plan in subsequent green frame structure construction.

Improved Session Management for Mobile Workflow in Web Application Service (모바일 환경을 위한 웹 애플리케이션 서비스의 세션 관리 개선방안)

  • Kim, Young-hun;Park, Yongsuk
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2014.10a
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    • pp.387-389
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    • 2014
  • It is preferred to the popularization of smart device business processes through mobile. The ratio of Internet access via mobile devices is reached 30% of PC in September 2012. It is reproduced in a mobile environment that security threats arising from the Internet. that is the characteristics of cyber security threats appearing on the mobile era. Web Application Service security research firm OWASP (The Open Web Application Security Project) issued Session Management threat. That threat will be reproduced in the mobile environment. But Mobile is significantly different from Desktop Computer about Session Management environment. This proceeding proposes a improved Session Management method in Mobile environment.

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Design of Semantic Search System for the Search of Duplicated Geospatial Projects (공간정보사업의 중복사업 검색을 위한 의미기반검색 시스템의 설계)

  • Park, Sangun;Lim, Jay Ick;Kang, Juyoung
    • Journal of Information Technology Services
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    • v.12 no.3
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    • pp.389-404
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    • 2013
  • Geospatial information, which is one of social overhead capital, is predicted as a core growing industry for the future. The production of geospatial information requires a huge budget, so it is very important objective of the policy for geospatial information to prevent the duplication of geospatial projects. In this paper, we proposed a semantic search system which extracts possible duplication of geospatial projects by using ontology for geospatial project administration. In order to achieve our goal, we suggested how to construct and utilize geospatial project ontology, and designed the architecture and process of the semantic search. Moreover, we showed how the suggested semantic search works with a duplicated projects search scenario. The suggested system enables a nonprofessional can easily search for duplicated projects, therefore we expect that our research contributes to effective and efficient duplication review process for geospatial projects.

Preliminary study on the Review Project Viability to Rahmen Structure (라멘조 공법의 사업성 검토에 관한 기초연구)

  • Lee, Sung-Ho;Joo, Jin-Kyu;Lee, Goon-Jae;Kim, Sun-Kuk
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.11a
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    • pp.139-140
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    • 2011
  • The government encourages adoption of Rahmen structure design to ensure efficient management of national resources. However, in comparison with bearing-wall structure, Rahmen structure requires higher unit construction cost and present challenges in terms of securing adequate floor area ratio and floor height. That is why project clients have been disinterested in adoption of Rahmen structure design. Therefore, we have attempted to find factors having influence on decline of project viability for Rahmen structure. This study will be utilized as a basic reference study for promotion of Green Frame design which is a composite PC structure already developed.

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The development of the MMI system for automating steel-making process (제철 공정 자동화를 위한 MMI 시스템 개발)

  • Lee, Dae-Sung;Kim, Yoon-Ha;Joo, Moon-Jab
    • Proceedings of the KIEE Conference
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    • 2002.07d
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    • pp.2469-2471
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    • 2002
  • MMI 시스템은 제철 공정에서 발생되는 다양한 데이터를 조업자에게 쉽고 빠르게 전달하기 위해, real time operating system에서 동작하는 제철공정의 주된 제어 프로세스와 인터페이스 한다. 따라서 MMI 시스템은 제철 공정의 주된 제어 프로세스와 ethernet network을 통해 공유 데이터들을 통신하도록 개발되고, MMI 시스템은 M/S window operating system과 DDE(Dynamic Data Exchange) 라이브러리 환경을 기반으로 개발된다. 수 개의 MMI client PC와 1 개의 MMI server로 구성되는 MMI 시스템은 MMI client들 사이의 공유 데이터가 동기화될 수 있도록 최적 packet 양을 도출하고, 신뢰성 높은 데이터 전송을 위한 특별한 데이터 핸들링 방법을 사용한다. MMI 시스템은 GUI(Graphic User Interface)를 사용하여 조업자에게 친숙한 window 화면을 제공하므로, MMI 시스템의 화면 수정, 첨가 및 삭제가 비용 부담없이 용이하게 진행되므로, 기존 제철 공정에서 사용하던 OCP(Operating Control Panel)들이 MMI 시스템으로 대체되고 있다.

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Amphetamine-induced ERM Proteins Phosphorylation Is through $PKC{\beta}$ Activation in PC12 Cells

  • Jeong, Ha-Jin;Kim, Jeong-Hoon;Jeon, Song-Hee
    • The Korean Journal of Physiology and Pharmacology
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    • v.15 no.4
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    • pp.245-249
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    • 2011
  • Amphetamine, a synthetic psychostimulant, is transported by the dopamine transporter (DAT) to the cytosol and increases the exchange of extracellular amphetamine by intracellular dopamine. Recently, we reported that the phosphorylation levels of ezrin-radixin-moesin (ERM) proteins are regulated by psychostimulant drugs in the nucleus accumbens, a brain area important for drug addiction. However, the significance of ERM proteins phosphorylation in response to drugs of abuse has not been fully investigated. In this study, using PC12 cells as an in vitro cell model, we showed that amphetamine increases ERM proteins phosphorylation and protein kinase C (PKC) ${\beta}$ inhibitor, but not extracellular signal-regulated kinase (ERK) or phosphatidylinositol 3-kinases (PI3K) inhibitors, abolished this effect. Further, we observed that DAT inhibitor suppressed amphetamine-induced ERM proteins phosphorylation in PC12 cells. These results suggest that $PKC{\beta}$-induced DAT regulation may be involved in amphetmaine-induced ERM proteins phosphorylation.

Analysis on Tower Crane Selection in Precast Concretes Structures and its Connection with Precast Rate

  • Guo, Jingjing;Fu, Yan;Wang, Kang;Peng, Zhenyu
    • International conference on construction engineering and project management
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    • 2017.10a
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    • pp.192-200
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    • 2017
  • With the acceleration of construction industrialization, the buildings that China has adopted the construction of industrialization technology are increasing day by day, and Precast Concrete (PC) Structure technology is one of the main technologies of construction industrialization. Compared with the traditional cast-in-place concrete structure, PC structure is more conducive to shorten the construction period, reduce the number of construction workers and the site construction waste. Nevertheless, PC structure improves the requirements of hoisting machinery in the construction site, and the lay-out and selection of hoisting machinery become an important factor influencing the construction cost. The paper regards the typical tower crane in China as the research object, and establishes the time optimization model for the lifting scheme. The influence of the different precast rate on the selection of the tower crane is analyzed. This paper obtains the time variation of the tower crane under different precast rate, provides a theoretical basis for the design of precast concrete structures under the influence of assembly construction, and lays the foundation for the selection of tower crane under the precast rate.

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