• Title/Summary/Keyword: Adapted time

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Reliable Conversion and Compensation for Temperature of STT (지능형 온도 전송기의 시스템 안정성과 온도 보상)

  • Lee, Dong-Kyu;Park, Jae-Hyun;Kim, Young-Su;Cho, Young-Hak
    • Proceedings of the KIEE Conference
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    • 1998.11b
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    • pp.403-406
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    • 1998
  • There are two cases of error occurrence of STT(Smart Temperature Transmitter). One is that because of unstable reference voltage, data from A/D converter is not reliable. The other is that because of change of room temperature, this change affects conversion of A/D converter. In this paper, we show algorithms be adapted to STT for reliable conversion of A/D converter through a experiment and compensation for temperature change. In a experiment, we collect data from reference voltage and ground then calculate nominal value of these at constant temperature during A/D converter initialization or at any conversion time. Algorithm for compensation for unstable reference voltage calculates a correction factor and adapts it to compensation for malfunction of A/D converter. Algorithm for compensation for variation of room temperature is come from linearization of thermistor but is adapted to zener diode, not thermistor, therefor we have less effort for compensation for temperature and have a idea that it can be adapted to A/D converter system.

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A Development of RSS-based Educational Information System for Providing Adapted Information (맞춤형 정보제공을 위한 RSS 기반 교육정보시스템의 개발)

  • Kang, Jeong-Min;Chun, Seok-Ju
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.5
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    • pp.293-302
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    • 2007
  • In this study, we develop a RSS-based educational information system for providing users, such as teachers, students, and parents of students with an adapted information. In order to collect an educational information from diverse web pages we design a web-based RSS reader. The RSS reader reads RSS files from the web sites or blogs which provide RSS feeds and then creates XML documents. The created XML documents are classified and registered into the system. Whenever the registered web-pages are updated, the system can automatically collect the updated information and provide the user with it. Therefore the user can be provided a real-time adapted educational information without searching web-sites from the system.

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An Efficient Exchange-Method of a User Profile for Adapted Contents Services (적응화된 콘텐츠 서비스를 위한 효율적인 사용자 프로파일 교환 방법)

  • Kim, Kyung-Sik;Lim, Jong-Hyun;Kim, Seung-Hoon;Lee, Jae-Dong
    • The KIPS Transactions:PartC
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    • v.15C no.1
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    • pp.69-78
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    • 2008
  • In this paper, we propose the effective exchange-method of a user profile for adapted contents services in the contents adaptation system. The profiles continuously exchange among the devices of contents adaption system for providing the adapted contents to a user. The profile should be also exchanged according to periodic, aperiodic, event, request and response. Consequently, a lot of network traffic occur and computing power require. Solving theses problem, the profile exchange research needs. we analyze creation information, exchange information, and exchange form of the profile information in contents adaptation system for effective profile exchange and define exchange procedure of the profile using the analyzed profile information. we also propose providing method of the profile configured information for decreasing profile processing time and user setting method for decreasing the number of profile transmission. As a result of performance evaluation, providing method of the profile configured information reduce 7% processing time and user setting method decrease the number of profile transmission are effective to exchange the profile.

Analysis of Using Geometry-based Adaptive Octree Method (Geometry-based Adaptive Octree 방법에 대한 고찰)

  • Park Jong-Ryoul;Sah Jong-Youb
    • 한국전산유체공학회:학술대회논문집
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    • 2000.10a
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    • pp.86-91
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    • 2000
  • Automatic method for generation of mesh and three dimension natural convection flow result adapted by this method are presented in this paper. It lake long time to meshing com plex 3-D geometries, and It's difficult to clustering grid at surface boundary. Octree structure resolve this difficulty.

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Combustion Condition Monitoring of the Marine Diesel Engine using Acceleration Signal of Cylinder Head (실린더 헤더의 가속도 신호를 이용한 선박용 디젤엔진의 연소 상태 모니터링)

  • Seo, Jong-Cheol;Kim, Sang-Hwan;Lee, Don-Chool
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2009.10a
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    • pp.607-610
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    • 2009
  • The abnormal combustion in the running engine results to knocking which increases the pressure and temperature in the cylinder, thereby decreasing the generated power by reducing the thermal efficiency. When the temperature and pressure in the cylinder increased rapidly by knocking, abnormal combustion takes place and the engine power is decreased. To investigate the knocking phenomenon, accelerometers are installed in the cylinder head to monitor and diagnose the vibration signal. As method of signal analysis, the time-frequency analysis method was adapted for acquisition of vibration signal and analyzes engine combustion in the short time. In this experiment, after analyzing time data which is stored in the signal recorder in one unit work (4 strokes: 2 revolutions), the signal with frequency and Wavelet methods with extracted one engine combustion data was also analyzed. Then, normal condition with no knocking signal is analyzed at this time. Hereafter, the experiments made a standard for distinguishing normal and abnormal condition to be carried out in acquisition of vibration signal at all cylinders and extracting knocking signal. In addition, analyzing methods can be diverse with Symmetry Dot Patterns (SDP), Time Synchronous Average (TSA), Wigner-Ville Distribution (WVD), Wigner-Ville Spectrum (WVS) and Mean Instantaneous Power (MIP) in the cold test [2]. With signal processing of vibration from engine knocking sensor, the authors adapted a part of engine /rotor vibration analysis and monitoring system for marine vessels to prevent several problems due to engine knocking

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Intelligent Hybrid Modular Architecture for Multi Agent System

  • Lee, Dong-Hun;Baek, Seung-Min;Kuc, Tae-Yong;Chung, Chae-Wook
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.896-902
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    • 2004
  • The purpose of the study of multi-robot system is to realize multi-robot system easy for the control of robot system in case robot is adapted in the complicated environment of task structure. The purpose of the study of multi-robot system is to realize multi-robot system easy for the control of robot system in case robot is adapted in the complicated environment of task structure. To make real time control possible by making effective use of recognized information in this dynamic environment, suitable distribution of tasks should be made in consideration of function and role of each performing robots. In this paper, IHMA (Intelligent Hybrid Modular Architecture) of Intelligent combined control architecture which utilizes the merits of deliberative and reactive controllers will be suggested and its efficiency will be evaluated through the adaptation of control architecture to representative multi-robot system.

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A Longitudinal Study on the Child's Adaptive Behavior in Kindergarten Measured by Attachment Style (시간경과에 따른 유아의 유치원생활 적응행동연구)

  • Oh, Jae Yeon
    • Korean Journal of Child Studies
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    • v.27 no.2
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    • pp.71-84
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    • 2006
  • This study investigated the relationship between types of attachment and social adaptation of kindergarten children. Subjects were 108 3-year-old children, their mothers, and their teachers. Results showed that children securely attached to both mother and teacher adapted better than children who were insecurely attached to both mother and teacher. Children who were securely attached to mother but insecurely attached to teacher, and children who were insecurely attached to mother but securely attached to teacher adapted better than children who were insecurely attached to both mother and teacher. This study suggests that the quality of child-mother or child-teacher attachment affects children's social adaptation with the passage of time in kindergarten.

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Design of Road Snow Melting system Using Piping System (배관시스템을 활용한 도로융설 시스템의 설계방법)

  • Kim, Jin-Ho S.;Kim, Jung-Hun;Lee, Geon-Tae
    • Proceedings of the SAREK Conference
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    • 2009.06a
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    • pp.1251-1255
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    • 2009
  • Snow melting system is adapted for safety and environment sides. Geothermal System has some problem of unbalance between summer and winter heat loads. Snow melting system with piping system is widely adapted in Japan. In this paper, the variation of road surface temperature along time for heating load is investigated. And for checking the difference between electrical melting system and piping melting system, other design parameters is investigated.

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A Study on the Data Acquisition by Bit Conversion Method (비트변환방식을 이용한 데이터 취득에 관한 연구)

  • 박상길
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.22 no.1
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    • pp.34-40
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    • 1986
  • This paper deals with a new bit conversion method. When 12 bit AID converter is adapted to 16 bit micro-computer, complicated data aquisition method is not necessary to acquire the AID converted data into memory of computer. However, when the 12 bit AID converter is adapted to the 8 bit micro-computer 12 bit data should be divided into 4 bit data and 8 bit data. Therefore the old data-dividing method made 4 bitl2byte of memory space wasted. On the contrary, using the new bit conversion method suggested in this paper the two of 12 bit data are converted into 3 byte of data without extending the AID conversion time.

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A Study on the Improvement of KC Certification Scheme of Electrical Appliances for Global Competence (글로벌 경쟁력 강화를 위한 전기용품 안전인증제도(KC) 개선에 관한 연구)

  • Kwon, Jin-Wook;Hwang, Myung-Whan
    • Journal of the Korea Safety Management & Science
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    • v.19 no.3
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    • pp.27-33
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    • 2017
  • Electrical product safety certification is for public safety. Korea electrical safety certification (KC) is being tested and certified on the base of Korean electrical appliance safety act and KC scheme. There are operating system and Electrical safety standards in the KC scheme. KC' operating system was adapted from japan operating system of Japan certification scheme. But KC certification' electrical safety standard was adapted from IEC standards of IECEE CB scheme. So There are many problems such as difference of version between KC standards and IEC standards, discrepancy between operating system and standards. Therefore, This paper analyzed the reason of discrepancy and proposed the improved KC certification operating system in order to reduce cost and to save time in the procedure of issuing KC approval for public safety in using electrical products and also for global competence.