• Title/Summary/Keyword: J2010

Search Result 2,450, Processing Time 0.031 seconds

Implementation of medicinal plant information system using Ajax and jQuery (Ajax과 jQuery 기반 약용식물 정보시스템 구현)

  • Kim, Hae-Ran;Kang, So-Young;Ceong, Hee-Taek;Han, Soon-Hee
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.14 no.7
    • /
    • pp.1626-1633
    • /
    • 2010

  • In this paper, we implemented medicinal plant information system based on user requirement using Ajax technique which can retrieve data from the server asynchronously in the background without refresh webpage and jQuery which is a lightweight cross-browser javascript library. Also, we presented the source code handling the server response data used in the system and compared the features by the type of response data. This system shows the improvement of user interaction and response rates because of a simple response data from the server, client-side data processing and change of web page by manipulating the DOM tree and provides ease of use and convenient data access.

  • https://doi.org/10.6109/jkiice.2010.14.7.1626 인용 PDF KSCI

DBRS:Design and Implementation of BPEL Engine based Robot System using B2J (DBRS:B2J를 이용한 BPEL 엔진 기반 로봇 시스템 설계 및 구현)

  • Lee, Jonghwa;Kwak, Donggyu;Choi, Jaeyoung
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2010.04a
    • /
    • pp.6-9
    • /
    • 2010

  • URC 로봇 클라이언트는 원가 절감 및 하드웨어 경량화를 위해 최소한의 요소로 구성되며, 필요한 기능을 외부 디바이스와의 연동 또는 서버를 통해 전송받아 작업을 수행하게 된다. 기존의 URC 로봇 시스템은 이기종간의 제약 없는 서비스를 제공하기 위해서 웹 서비스를 사용하고, 워크플로우 표준 언어인 BPEL 을 기반으로 한 워크플로우 엔진을 사용하고 있다. 로봇 클라이언트의 제한 된 자원으로 인해 대부분의 URC 로봇 시스템은 서버에서 BPEL 엔진을 동작시키고, 네트워크를 통해서 클라이언트의 서비스를 호출하는 구조를 가지게 된다. 이에따라 기존 로봇 시스템은 클라이언트 서비스 호출로 인한 네트워크 부하가 발생하는 문제가 있다. 본 논문에서는 경량화 된 B2J 시스템을 이용하여 로봇 클라이언트에서 BPEL의 실행을 수행하는 DBRS를 제안한다. 기존의 B2J는 BPEL 문서를 Java 코드로 변환, 컴파일, 실행하는 과정을 같은 환경에서 수행했으나 DBRS에서 사용되는 경량화 된 B2J 는 변환자와 실행자를 분리함으로써 요구사항을 낮추고 로봇의 제한된 자원을 절약한다. DBRS 는 다른 BPEL 엔진을 사용하는 로봇 시스템에 비해 클라이언트의 제한된 자원을 절약하고, 로봇 서비스 호출에 의해 발생하는 네트워크 부하가 감소한다.

  • https://doi.org/10.3745/PKIPS.y2010m04a.6 인용 PDF

A Numerical Study on Operating Characteristics of a Miniature Joule-Thomson Refrigerator

  • Hong, Yong-Ju;Park, Seong-Je;Choi, Young-Don
    • Progress in Superconductivity and Cryogenics
    • /
    • v.12 no.4
    • /
    • pp.41-45
    • /
    • 2010

  • Miniature Joule-Thomson refrigerators have been widely used for rapid cooling of infrared detectors, optoelectronic device, and integrated circuits of micro electronics. The typical J-T refrigerator consists of the recuperative heat exchanger with the double helical tube and fin configuration, J-T nozzle, a mandrel, Dewar and a compressed gas storage bottle. In this study, to predict the thermodynamic behaviors of the refrigerator with a compressed gas storage bottle during the cool-down time, numerical study of transient characteristics for a J-T refrigerator was developed. A simplified transient one.dimensional model of the momentum and energy equations was simultaneously solved to consider the thermal interactions of the each component of the refrigerator. To account for effects of the thermal mass of the solid, the heat capacities of the tube, fins, mandrel and Dewar are considered. The results show the charged gas pressure of the gas storage bottle has significant effects on the performance of the J-T refrigerator. At the elevated gas pressure of the gas storage bottle, the large capacity of the compressed gas storage does not need to get the fast cool-down performance of the J-T refrigerator in the cool-down stage.

  • https://doi.org/10.9714/psac.2010.12.4.041 인용 PDF KSCI

Study on Improvement of the Piezoelectric Properties of Acoustic Emission Sensor to be Used for Superconducting Application Systems (초전도 응용기기 안정성 진단을 위한 AE센서용 압전소자의 성능개선 연구)

  • Kim, K.J.;Kim, J.H.;Song, J.B.;Paik, J.H.;Jang, J.Y.;Ko, T.K.;Lee, H.G.
    • Progress in Superconductivity and Cryogenics
    • /
    • v.12 no.3
    • /
    • pp.44-48
    • /
    • 2010

  • Acoustic emission (AE) signal from an HTS tape has a low signal to noise ratio, due to the large amount of noise caused by the boiling of the liquid cryogen or mechanical vibration from the cryo-cooler. In an attempt to improve the sensitivity of the AE sensor, $Pb(Zr_{0.54}Ti_{0.46})O_3$ + 0.2 wt% $Cr_2O_3$ + 1.0 wt.% $Nb_2O_5$ ceramics sintered at $1200^{\circ}C$ was synthesized. In addition, the resonance ($f_r$) and anti-resonance frequencies ($f_a$) were measured using the specimens with various thicknesses (1.0, 1.5, 2.0, 2.5 and 3.0 mm). According to the test results, large AE signals with high frequencies were obtained from the AE sensor fabricated using a piezoelectric disc with a thinner thickness.

  • https://doi.org/10.9714/psac.2010.12.3.044 인용 PDF KSCI