• Title/Summary/Keyword: Measurement Model

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A Study on Workload Measurement Model for the Postal Delivery Service (우편 집배업무 부하 산정 모델 연구)

  • Lee, Sang-Rak;Park, Moon-Sung;Cha, Chun-Nam;Shim, Joung-Taek;Cha, Byung-Chul
    • IE interfaces
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    • v.25 no.2
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    • pp.196-203
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    • 2012
  • In the postal delivery service, both the standardization of business process and the workload measurement is very important part of saving the cost and improving the efficiency. However, these are not easy to apply to real situation because of the labor-intensive and diversification of delivery environment. In this study, we develop the methodology for the standardization of business process and workload measurement model of the postal delivery service. Firstly, we introduce the work factor analysis on the postal delivery process. Then, we propose the methodology workload measurement model based on diversification of delivery environment.

The influence of model surface roughness on wind loads of the RC chimney by comparing the full-scale measurements and wind tunnel simulations

  • Chen, Chern-Hwa;Chang, Cheng-Hsin;Lin, Yuh-Yi
    • Wind and Structures
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    • v.16 no.2
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    • pp.137-156
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    • 2013
  • A wind tunnel test of a scaled-down model and field measurement were effective methods for elucidating the aerodynamic behavior of a chimney under a wind load. Therefore, the relationship between the results of the wind tunnel test and the field measurement had to be determined. Accordingly, the set-up and testing method in the wind tunnel had to be modified from the field measurement to simulate the real behavior of a chimney under the wind flow with a larger Reynolds number. It enabled the results of the wind tunnel tests to be correlated with the field measurement. The model surface roughness and different turbulence intensity flows were added to the test. The simulated results of the wind tunnel test agreed with the full-scale measurements in the mean surface pressure distribution behavior.

Quantity Measurement by CAFFE Model and Distance and Width Measurement by Stereo Vision (CAFFE 모델을 이용한 수량 측정 및 스테레오 비전을 이용한 거리 및 너비측정)

  • Kim, Won-Seob;Kim, Eung-Kon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.14 no.4
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    • pp.679-684
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    • 2019
  • We propose a method to measure the number of specific species of class using CAFFE model and a method to measure length and width of object using stereo vision. To obtain the width of an object, the location coordinates of objects appearing on the left and right sensor is compared and the distance from the sensor to the object is obtained. Then the length of the object in the image by using the distance and the approximate value of the actual length of the object is calculated.

Measurement of the Magnetization Loss in a HTS Tape (고온초전도선재의 자화손실 측정)

  • Sim, Jeong-Uk;Lee, Hui-Jun;Cha, Gwi-Su;Lee, Ji-Gwang;Han, Song-Yeop
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.48 no.4
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    • pp.182-186
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    • 1999
  • Evaluation of the AC losses in the HTS tapes which are used in electric power machines in one of the important topics in this field. This paper deals with the calculation and measurement of the magnetization loss in HTS tapes. Bean model is adopted for the theoretical calculation of the magnetization loss. Magnetization method is used for the measurement of the loss. Two types of the HTS tape model, multi-filamentary model and mono-filamentary model, are used to evaluate the magnetization loss in this paper. According to the results of the analysis, large discrepancy between the calculated and measured value is observed in multi-filamentary model is more useful than multi-filamentary model for the evaluation of the magnetization loss.

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Development of Service Quality Measurement Model and Index for Digital Libraries (디지털도서관의 서비스 품질 측정모형과 지표 개발)

  • Hwang, Jae-Young;Lee, Eung-Bong
    • Journal of Korean Library and Information Science Society
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    • v.41 no.1
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    • pp.121-147
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    • 2010
  • The purpose of this study is to develop and prove service quality measurement model and indicators which are able to measure objectively service quality of digital libraries in Korea. Literature review and Delphi survey are used to investigate service quality dimensions. User perceived service quality performance was measured to validate DL-SQI model with three digital libraries. Finally DL-SQI(Digital Library-Service Quality Index) model was developed which is composed of four primary dimensions. The survey results reveal that reliability coefficient is 0.8 which means high reliability of survey and it suggests that DL-SQI model based on the above dimensions is proved through confirmatory factor analysis.

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A Study On Measurement-based Load Modeling Using PSCAD/EMTDC (PSCAD/EMTDC를 이용한 측정기반의 부하모델링 연구)

  • Lee, Kyung-Sang;Park, Rae-Jun;Song, Kyung-Bin
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.6
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    • pp.1079-1085
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    • 2011
  • To supply electrical power with high quality, the power system must be optimized in many ways such as planning, control and management. In order to optimize the power system, the analysis of the power system is necessary. The elements of the power system require an accurate model to analysis of the power system. The components of the power systems such as generators, transformers and transmission lines have been studied and researched a lot in their modeling and very sophisticated models have been proposed. However, in case of load in-depth studies on the exact model are required. In this paper, measurement-based load modeling method using real-time measured data is proposed in various methods to reflect the characteristics of the load. To prove the validity of the proposed method, PSCAD/EMTDC program is used to configure the power system and measurement data according to the various failures are used to study on load modeling.

Developing the Measurement Model of Service Quality in the Public Sector (공공부문의 서비스품질 측정모형 개발)

  • Rha, Jun-Young;Rhee, Seung-Kyu
    • IE interfaces
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    • v.20 no.3
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    • pp.339-352
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    • 2007
  • Beyond SERVQUAL-based service quality research, we develop a measurement model of public service quality that would provide researchers and practitioners in the public sector with a foundation for systematic investigation and implementation. Firstly, we explore the attributes of public service quality that lead to customer satisfaction by using the critical incident technique (CIT). We identified four dimensions of public service qualities. We also found that the critical attributes of service quality differ according to the types of customers. Secondly, to achieve a high degree of empirical confidence, we conduct statistical tests and analyses on the classification scheme and on the attributes of service quality that we derived from the CIT analysis. Through these analyses, we could remove the redundancy among attributes and group the attributes into new constructs, which are mutually exclusive and exhaustive; we built a more sophisticated measurement model of service quality.

A Study on Measurement of SERVQUAL and SERVPERF Measurement - A Sightsee- ing quality of Service to the centers - (SERVQUAL 측정과 SERVPERF 측정 이론 연구 -관광 서비스 품질을 중심으로-)

  • Kim, Chul-Jung
    • The Journal of Information Technology
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    • v.9 no.3
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    • pp.33-47
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    • 2006
  • We will can do quality of measurement of service that thing is quite abstract concept. Generally, we speak Service of quality that property of a product, usability of use, social quality requirement to a quality of service by wide meaning. A purpose of this study was comparison regarding a way to measure of service quality, and in the insufficient section there was anything, and progress of model study of service left no matter how much focus to it. There is comparative study a few progress of literature of a PZB, SERVQUAL, SERVPERF, model. Desarbo, Huff, Rolandelli, & Choi, (1994: 125-131) proposed that to solve the above model contradiction point, and Presentation called a plan based on to Conjoint analysis. There is Critical point to decide on priority order of proposed model of service measurement. This study has a lot of the pieces which are short by absence of empirical study, but will make a supplementation in next term study.

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A Lifelog Common Data Reference Model for the Healthcare Ecosystem (디지털 헬스케어 생태계 활성화를 위한 라이프로그 공통데이터 참조모델)

  • Lee, Young-joo;Ko, Yoon-seok
    • Knowledge Management Research
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    • v.19 no.4
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    • pp.149-170
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    • 2018
  • Healthcare lifelog, a personal record relating to disease treatment and healthcare, plays an important role in healthcare paradigm shifts in which medical and information technology converge. Healthcare services based on various healthcare lifelogs are being launched domestically by both large corporations and small and medium enterprises, however, they are being built on an individual platform that is dependent on each company. Therefore, the terms of lifelog data are different as well as the measurement specifications are not uniform. This study proposes a reference model for minimum common data required for sharing and utilization of healthcare lifelog. Literature study and expert survey derived 3 domain, 17 essential items, and 51 sub-items. The model provides definition, measurement data format, measurement method, and precautions for each detailed measurement item, and provides necessary guidelines for data and service design and construction for healthcare service. This study has its significance as a basic research supporting the activation of ecosystem by ensuring interoperability of data between heterogeneous healthcare devices linked to digital healthcare platform.

Measurement and Analysis for Electric Locomotive Modeling (전기철도 부하모델링을 위한 신형 전기기관차 측정 및 결과분석)

  • Kim Joorak;Han Moonseob;Jang Donguk;Lee Kiwon;Shim Keonbo;Kim Junghoon
    • Proceedings of the KSR Conference
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    • 2003.05a
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    • pp.403-408
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    • 2003
  • This paper presents measurement to develop load model for electric locomotive. Load model is defined as polynomial form and each coefficient is solved by the least square method. Therefore, many data is required for using this method. The measurement is performed on KNR line, from Chongryangri to Donghae. The subject of measurement is voltage, current, active power, reactive power an frequency for EL8100.

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