• 제목/요약/키워드: Comparison Research

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Performance Study of Packet Switching Multistage Interconnection Networks

  • Kim, Jung-Sun
    • ETRI Journal
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    • 제16권3호
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    • pp.27-41
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    • 1994
  • This paper provides a performance study of multistage interconnection networks in packet switching environment. In comparison to earlier work, the model is more extensive - it includes several parameters such as multiple-packet messages, variable buffer size, and wait delay at a source. The model is also uniformly applied to several representative networks and thus provides a basis for fair comparison as well as selection of optimal values for parameters. The complexity of the model required use of simulation. However, a partial analytical model is provided to measure the congestion in a network.

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A Study On Comparison of Excellence between SERVQUAL and SERVPERV AL Scale

  • Cho, Yoon-Shik
    • Journal of the Korean Data and Information Science Society
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    • 제19권1호
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    • pp.1-10
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    • 2008
  • The purpose of this research is to compare whether SERVQUAL or SERVPERV AL scale is more excellent when explaining customer satisfaction and repurchase intention. The value of R2 which shows explaining power is used to test the excellence of the scale. As a result of comparison and analysis, SERVPERV AL scale showed better explaining power of customer satisfaction and repurchase intention than SERVQUAL. This result is because SERVPERV AL scale predicates overall estimation on utility of product/service.

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특정 주파수 추출을 위한 여러 가지 디지털 펄터의 특성 비교 (Characteristic Comparison of Several Digital Filler for Wanted Frequency Component Extraction)

  • 박철원;신명철
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 하계학술대회 논문집 A
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    • pp.360-362
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    • 2004
  • In this paper, as the preceding research for development of intelligent electronic device for digital based substation automation system, we tried to select the most suitable digital filter by comparison of frequency response characteristic, performance of wanted frequency component extraction.

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연구개발 프로젝트 평가에 대한 의식구조분석 (Analysis of Consciousness Structure R&D Project Evaluation)

  • 김성희;김정자
    • 산업경영시스템학회지
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    • 제25권4호
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    • pp.61-68
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    • 2002
  • This paper provides a method of consciousness structure analysis for research and development project evaluation using fuzzy structure modeling(FSM). Fuzzy structure modeling, which is a modeling method for consciousness structure, has a large number of pairwise comparison by human subjective judgement and is difficult to check the consistency index of denoting the precision for human judgement. Thus, in this paper, we analyzed the structure of consciousness by fuzzy structural modeling method, introducing the concept of pairwise comparison matrix in Analytic Hierarchy Process.

오십견 환자의 침 치료군과 뜸 병용치료군 간의 임상적 비교 고찰 (Comparison study acupuncture treatment with Acupuncture & Moxibustion combined treatment for frozen shoulder patients)

  • 김영일
    • 혜화의학회지
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    • 제15권2호
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    • pp.1-7
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    • 2006
  • Objectives : Comparison acupuncture treatment with Acupuncture & Moxibustion combined treatment for frozen shoulder 20 case patients Methods : Efficacy evaluation using Apley scratch test(ROM), Martin.A.N'Improvement rate Results : 1. Acupuncture & Moxibustion combined treatment group were better than acupuncture treatment group in Martin.A.N' Improvement rate. 2. Acupuncture & Moxibustion combined treatment group were better than acupuncture treatment group in Apley scratch test(ROM). but this study need to many case frozen shoulder investigation.

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A Study on Feature Extraction and Matching of Enhanced Dynamic Signature Verification

  • Kim Jin-Whan;Cho Hyuk-Gyn;Cha Eui-Young
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2005년도 춘계학술대회 학술발표 논문집 제15권 제1호
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    • pp.419-423
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    • 2005
  • This paper is a research on feature extraction and comparison method of dynamic (on-line) signature verification. We suggest desirable feature information and modified DTW(Dynamic Time Warping) and describe the performance results of our enhanced dynamic signature verification system.

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시뮬레이션 교육이 응급구조과 학생의 기본소생술 수행능력에 미치는 영향 (The Effect of Simulation-based Training on the Competence of Basic Life Support of the students Emergency Medical Technology)

  • 고종현
    • 한국응급구조학회지
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    • 제11권3호
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    • pp.31-45
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    • 2007
  • Purpose : The simulation-based training in this research consists of theory and practice. Before the training, target students took a test on the competence of basic life support. Based on the result, they were separated as the subject group and comparison group. The simulation-based training was offered to the subject group and the traditional training was given to the comparison group. As soon as the training was completed, a follow-up study was conducted. Methods : This research aimed to figure out the effect of the simulation-based training on the competence of basic life support of the students Emergency Medical Technology. To this end, the nonequivalent pretest-posttest-quasi-experimental design using a comparison group was conducted. Results : The first hypothesis was that 'The group who took the simulation-based training would show higher points in the knowledge of basic life support than the group who took the traditional training.' Among those who took prior theory education, the subject group showed $69.38{\pm}20.43$ points while the comparison group showed $76.25{\pm}21.33$ points(t = -0.658, p = 0.531). Among those who took prior theory education and training, the subject group showed $82.86{\pm}10.86$ points while the comparison group showed $79.33{\pm}15.45$ points(t = 0.705, p = 0.487). Since there were no significant statistical differences between the two groups, the first hypothesis didn't hold. It showed few differences between the two training methods. The second hypothesis was that 'The group who took the simulation-based training would show higher points in the basic life support skills than the group who took the traditional training.' Among those who took prior theory education, the subject group showed $65.75{\pm}7.66$ points while the comparison group showed $46.88{\pm}13.48$ points(t = -3.442, p = 0.004). Among those who took prior theory education and training, the subject group showed $79.50{\pm}11.40$ points while the comparison group showed $62.13{\pm}11.44$ points(t = 4.091, p = 0.000). Since there were significant statistical differences between the two groups, the second hypothesis held. It showed substantial differences between the two training methods. Conclusion : The group who took the simulation-based training showed more positive effects on the competence of basic life support than those who took the traditional training. Therefore, it is confirmed that the simulation-based training is a useful method to improve clinical work performance of the students Emergency Medical Technology.

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