• Title/Summary/Keyword: application profile

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A Design and Implementation of Application Profile Core Ontology (응용프로파일 코어 온톨로지 설계 및 구현)

  • Han, Sung-Kook;Lee, Hyun-Sil
    • Journal of the Korean Society for information Management
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    • v.24 no.3
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    • pp.245-269
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    • 2007
  • The standard metadata systems are very popular for the description of structures and semantics of information resources to realize sharing and exchanging information in global ubiquitous environment. In real application domain, various metadata elements are reused together with mix-and-match manner. An application system using diverse metadata systems is compelled with refinement and interoperability of metadata elements. Application profile is the general approach to resolve the various problems occurred in metadata application systems. This paper proposes Application Profile Core Ontology (APO) that can achieve the goals and functions of application profile, and describes metadata application system based on APO.

Profile Ring Rolling Manufacturing Technology of Alloy 718 (초내열합금 링제품의 형상링 압연 제조 기술)

  • Kim, T.O.;Kim, K.J.;Kim, N.Y.;Lee, J.M.;Yeom, J.T.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2009.10a
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    • pp.425-428
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    • 2009
  • Aerospace engine application needs to stand high temperature and pressure. Because of its mechanical properties such as high strength at high temperature, Alloy 718 is used aerospace engine application about 80%. But alloy 718's mechanical properties cause some problem to manufacturing profile ring like damage of material and mold. In this study, alloy 718's mechanical properties investigated for knowing its formability and using FE-Simulation for designing profile ring roll process and mold shape. Profile ring rolling processing is designed with "Initial material$\rightarrow$Blank$\rightarrow$Linear Ring$\rightarrow$Profilering". Blank's heating temperature is setting $1100^{\circ}C$ for manufacturing a trial profile ring on the basis of FE-Simulation. As a result of manufacturing alloy 718 profile ring, it is possible to make near target profile shape ring with all of the processing condition which gives in this study.

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Calculation and application of the location-based speed profile of ATO considering the speed limitation and the jerk limitation (가속도한계 및 저크한계를 고려한 열차자동운전장치의 위치기반 속도프로파일의 계산 및 적용)

  • Yoon, Young-Hwan;Um, Jung-Kyou;Han, Jae-Mun;Cho, Yong-Gee
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.1685-1690
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    • 2010
  • This paper describes the calculation and application of the speed profile for the train speed control when the train is operated by ATO(Automatic Train Operation). We propose a speed profile calculation method considering the speed limitation and the jerk limitation, in order to maintain the quality of the train automatic operation. In previous works, ATO calculates a desired speed profile along the time, and controls the train to follow the profile. In this case, it may be hard to follow the restrictive speed along the location or to stop the train with a low location error, because of the difference between the desired location at each time and the real location of the train due to the control error. In the proposed method in this paper, we calculate a desired speed profile along the time considering the speed and jerk limitation first, and derive a speed profile along the location using it. If the restrictive speed profile is changed or the train speed strayed from the speed profile, ATO system calculates new speed profile and applies it immediately. Because ATO system controls the train speed based on the train location, the accuracy of the train location control can be improved. A simulation system for the test of the automatic train operation using this method is designed.

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The Effectiveness Test of Improved Wheel Profile by Using Microphones (마이크로폰을 이용한 개선된 차륜답면 효과 시험)

  • Moon Kyeong-Ho;Hur Hyun-Moo;Kim Jae-Chul
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.664-669
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    • 2004
  • In rolling stock, wheels are one of the most important components to run on the track in safety. Especially, it is important that wheel profile cause the variation of dynamic characteristics and running safety. The purpose of this paper is to propose the wheel profile and to know the effectiveness of improved wheel profile by using microphones. We also performed analysis of running safety to know application of improved wheel profile before the test. In result, the improved wheel profile was stable in running safety and noise level was reduced.

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Development and Application of a Profile Measurement Sensor for Remote Laser Welding Robots (원격 레이저 용접 로봇을 위한 형상 측정 센서의 개발과 응용)

  • Kim, Chang-Hyun;Choi, Tae-Yong;Lee, Ju-Jang;Suh, Jeong;Park, Kyoung-Taik;Kang, Hee-Shin
    • Laser Solutions
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    • v.12 no.2
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    • pp.11-16
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    • 2009
  • A new profile measurement sensor was developed for remote laser welding robots. A stripe laser and a vision camera are used in the profile sensor. A simple sensor guided control scheme using the developed sensor is also introduced. The sensor can be used to guide the welding head in the remote welding application, where the working distance reaches to 450mm. In experiments, the profile measurement and the seam tracking were carried out using the developed sensor.

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A Proposal for Creating Task-Centric Application Profile: Utilization of Task Model for Suitable Selection and Combination of Metadata Schema Properties (메타데이터 스키마의 적절한 선택과 조합을 위해 태스크 모델을 활용한 업무중심의 어플리케이션 프로파일 모델 제안에 관한 연구)

  • Baek, Jae-Eun
    • Journal of Korean Library and Information Science Society
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    • v.49 no.3
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    • pp.407-428
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    • 2018
  • Metadata standard is very important element to describe a digital resource in the records lifecycle. Metadata standard is influenced by the purpose and content of tasks that are performed to a resource. But it does not reflect a task-centric viewpoint to cover the whole records-lifecycle because metadata is defined and designed from a resource-centric viewpoint. In other words, to cover the whole records-lifecycle using metadata, it is necessary to properly select and combine metadata property from a task-centric viewpoint. Therefore, we proposed a task-centric metadata application profile that can combine and select appropriate metadata properties according to requirements and tasks performed on resource.

Design and Implementation of AC-PDP Power Supply using Planar Magnetic Components (박형 자기소자를 이용한 AC-PDP 전원회로의 설계 및 제작)

  • Kim Myoungsoo;Choi Byungcho
    • Proceedings of the KIPE Conference
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    • 2004.07b
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    • pp.677-681
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    • 2004
  • This paper presents the design and implementation of a low-profile power supply developed for AC-PDP application systems. In the proposed power supply, planar magnetics and SMD devices are integrated into advanced power conversion techniques to implement a low-profile power supply applicable to most AC-PDP application systems. Engineering details on the design and fabrication of planar magnetic components are presented. The performance of the prototype power supply is also demonstrated to validate the application potentials of the proposed power supply.

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Straightness Measurement Technique for a Machine Tool of Moving Table Type using the Profile Matching Method (이동테이블형 공작기계에서의 형상중첩법을 이용한 진직도 측정기술)

  • 박희재
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.04b
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    • pp.400-407
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    • 1995
  • The straightness property is one of fundamental geometric tolerances to be strictly controlled for guideways of machine tools and measuring machines. The staightness measurement for long guideways was usually difficult to perform, and it needed additional equipments or special treatment with limited application. In this paper, a new approach is proposed using the profile matching technique for the long guideways, which can be applicable to most of straghtness measurements. An edge of relativelly sthort length is located along a divided section of a long guideway, and the local straightness measurement is performed. The edge is then moved to the next section with several positions overlap. After thelocal straightness profile is measured for every section along the long guideway with overlap, the global straightness profile is constructed using the profile matching technique based on theleast squares method. The proposed techinique is numerically tested for two cases of known global straightness profile arc profile and irregular profile and those profiles with and without random error intervention, respectively. When norandom errors are involved, the constructed golval profile is identical to the original profile. When the random errors are involved, the effect of the number of overlap points are investigated, and it is also found that the difference between the difference between the constructed and original profiles is very close to the limit of random uncertainty with juist few overlap points. The developed technique has been practically applied to a vertical milling machine of moving table type, and showed good performance. Thus the accuracy and efficiency of the proposed method are demonstrated, and shows great potential for variety of application for most of straightness measuirement cases using straight edges, laser optics, and angular measurement equipments.

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A Low-Profile DC-To-DC Converter for Sustain Driving Circuits of AC PDP Application Systems (저소비전력 PDP 구동을 위한 고효율 박형 전원회로 개발)

  • Lee S.W.;Choi B.C;Lee K.J.
    • Proceedings of the KIPE Conference
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    • 2003.07a
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    • pp.247-250
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    • 2003
  • The current paper presents the design and implementation of a low-profile dc-to-dc converter developed as a power supply for the sustain driving: circuit inside large-area wall-mount ac PDP application systems. Details on the design and implementation of a 500 W prototype dc-to-dc converter, miniaturized within a 230 mm$\times$ 130 mm area with a thickness of 25 mm while still achieving a 95 $\%$ conversion efficiency, are presented to demonstrate the feasibility and application potentials of the proposed low-profile dc -to-dc converters.

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A Low-Profile DC-To-DC Converter for Sustain Driving Circuits of AC PDP Application Systems

  • Lee, Sang-Won;Choi, Byung-Cho;Lee, Ki-Jo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.333-336
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    • 2003
  • The current paper presents the design and implementation of a low-profile dc-to-dc converter developed as a power supply for the sustain driving circuit inside large-area wall-mount ac PDP application systems. Details on the design and implementation of a 500 W prototype dc-to-dc converter, miniaturized within a 230 $mm{\times}130$ mm area with a thickness of 25 mm while still achieving a 95 % conversion efficiency, are presented to demonstrate the feasibility and application potentials of the proposed low-profile dc-to-dc converter.

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