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Driving Characteristics of Single Phase Switched Reluctance Motor for Fan Application (송풍기용 단상 SRM의 구동특성)

  • Kim B.C.;Ahn J.W.
    • Proceedings of the KIPE Conference
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    • 2003.07b
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    • pp.848-851
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    • 2003
  • This paper proposes a new driving scheme for single-phase SRM. The driving scheme is very simple and inexpensive. By use of this scheme, simple power devices based on low switching losses enable to high efficiency SRM drive. Starting, One of the main problem in single-phase SRM is overcame by a new starting algorithm with one hall sensor and a parting magnet. The proposed single phase SRM has a high efficiency and robust drive characteristics compared to that of a universal motor.

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Microfocus X-ray CT Analysis of Shrinking Direction in Resin Composite.

  • Inai, N.;Katahira, N.;Hashimoto, K.;Tagami, J.;Hirakimoto, A.;Marshall, S.J.;Marshall. G.W.
    • Proceedings of the KACD Conference
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    • 2001.11a
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    • pp.559.1-559
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    • 2001
  • The aim of the study was to determine the direction and the rate of polymerization shrinkage of light-cured resin composite. Materials and Methods: A microfocus x-ray CT(computed tomography) instrument (SMX-255CT, Shimadzu Co., Kyoto, Japan) was used to analyze and characterize the pre-and post-gel phases. A microfocus x-ray tube was used to enable a focus dimension of 4 microns.(omitted)

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HYBRID LIGHTWEIGHT STRUCTURES -On Recent Projects aimed at Holistic Design

  • Saitoh, Masao
    • Proceeding of KASS Symposium
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    • 2005.05a
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    • pp.52-66
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    • 2005
  • Tension and Membrane have the potential to enable the realization of lightweight structures that have the attractive features of structures efficiency and aesthetical expression. Compared with pure (thorough-bred) tension structures such as cable net, air dome and tensegrity, so called hybrid tension structures such as beam string, tensegric system and other mixed structures have Potential still to be realized. After synnaruzubg the simple definition of tensegric structure, some holistic designs for hybrid tension structures completed recently in the author's practice are given.

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Strategies for global e-logistics industries: formation of global strategic alliances (E-로지스틱스의 발달과 3PL 기업의 글로벌 네트웍 구축전략)

  • Lee, Hun-Soo
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.20
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    • pp.441-465
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    • 2003
  • This research attempts to identify growth potential of e-logistics market and opportunities provided by its growth; analyze requirements and critical success factors for logistics industries to make most of such opportunities; and analyze various strategic alternatives for e-logistics industries. Subsequently this paper looks at strategies that may enable logistics companies to grow into competitive e-logistics and e-fulfillment companies. This would involve the close interface between advances in IT and logistics activities and formation of global strategic alliances.

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Development of Conveyor Belt Monitoring System (컨베이어 벨트상태 모니터링 시스템 개발)

  • 유재상
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.436-436
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    • 2000
  • In order to monitor the belt from being damaged by impact of large lump of materials in ores being transported on conveyor belt, we developed a conveyor belt monitoring system using vision. By the information such as the position and size of the damage of belt obtained by vision system, it is expected that not only the span of belt life will be lengthened, but also this system can enable operators to plan scheduled maintenance and prevent the enlargement of damaged parts in conveyor belt at an early stage

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A Study On Controlling An illuminator Using Power-Line Modem (전력선 모뎀을 이용한 조명기기 제어연구)

  • 최현철;김희식;김웅찬;이재황
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.129-129
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    • 2000
  • This paper describes the concept and method of Controlling an illuminator using Power-Line Modem. Nowadays it is being studied and developed the Power-Line communication. The communication using Power-Line can realize Building-Automation and Home-Automation easily and chiefly. Because it has no need constructing an additional equipment. In this study it is used The Power-Line Modem, illuminators and microcontrollers which enable RS-232C serial communication.

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The Use of Graphic Monitoring during Mechanical Ventilation (기계적 환기기 사용중 그래픽 모니터링의 활용)

  • Son, Dong-Woo
    • Neonatal Medicine
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    • v.17 no.1
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    • pp.1-12
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    • 2010
  • Graphic monitoring assists the clinician at the bedside in several ways. It can be helpful in fine-tuning or adjusting ventilator parameters. Graphic monitoring may help to determine the patient's response to pharmacologic agents. The clinician also has the ability to trend monitored events over a prolonged period of time. The neonatal patient's self respiration, synchrony to ventilator and respiratory efforts can be well recognized with graphic monitoring. Of all, it may enable detection of complications before they become clinically apparent. This article introduces the basics of real-time graphics.

Mass Spectrometry-Based Proteomic Profiling of Pseudopodia of Metastatic Cancer Cells

  • Choi, Sunkyu
    • Mass Spectrometry Letters
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    • v.11 no.2
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    • pp.25-29
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    • 2020
  • Pseudopodia are dynamic actin cytoskeleton-based membrane protrusions of cells that enable directional cell migration. Pseudopodia of cancer cells play key roles in cancer metastasis. Recent studies using pseudopodial subcellular fractionation methodologies combined with mass spectrometry-based proteomic profiling have provided insight into the pseudopodiome that control the protrusions of invasive metastatic cancer cells. This review highlights how to characterize the protein composition of pseudopodia and develop strategies to identify biomarkers or drug candidates that target reduction or prevention of metastatic cancer.

Simulation of smoke movement in a ventilated tunnel by using fine hydrogen bubbles (미세수소기포를 이용한 환기 터널내의 연기거동 모사)

  • Park, Won-Hee;Lee, Han-Su;Jang, Yong-Jun;Jung, Woo-Sung
    • Proceedings of the KSR Conference
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    • 2008.06a
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    • pp.1768-1772
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    • 2008
  • The authors previously presented that the experimental technique using fine bubbles generated by electrolysis simulated fire behavior in a tunnel. We improve this experimental setup to enable this to be considered tunnel-ventilation by circulation of salt water. In this paper we introduce the new experimental setup and the visualization of fine hydrogen bubbles simulated smoke in a ventilated tunnel by using a laser sheet are presented.

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Pre/Post Processors for the Design of Steel Box Girder Bridges (강합성상형교 설계를 위한 전.후처리 시스템 개발)

  • 정영식;정현태
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1998.04a
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    • pp.183-190
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    • 1998
  • This paper discusses the development and use of an integrated system for the design of steel box girder bridges. The system includes pre/post processors designed particularly for the ease of use by adopting GUI(Graphical User Interface). They offer convenient facilities for the management of design data and thus enable the user to draw satisfactory structural designs. In particular, ease of redesign iterations makes better structures possible in this system

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