• 제목/요약/키워드: Technical Change

검색결과 1,382건 처리시간 0.033초

New Dynamic Fiber Orientation Sensor Based on Dielectric Anisotropy Measurement Technology

  • Sawamoto, Hidetada;Nagata, Shinichi
    • 한국펄프종이공학회:학술대회논문집
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    • 한국펄프종이공학회 2006년도 PAN PACIFIC CONFERENCE vol.1
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    • pp.161-166
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    • 2006
  • A new fiber orientation sensor has been developed and tested on an actual paper machine to demonstrate its capability to function as a real-time monitoring system. First, we demonstrate the ability of the sensor system to detect the change in the fiber orientation angle while the sensor head, and not the paper, was intentionally rotated from $-90^{\circ}\;to\;+70^{\circ}$ with respect to the paper-traveling direction. Next, we demonstrate that this system can successfully detect the change in the magnitude and angle of fiber orientation in running paper when the direction of material flow on the wire was changed on the paper machine. The angle and magnitude of fiber orientation were independently confirmed by SST and MOA measurements. Furthermore, we found that the system was capable of measuring the basis weight and the moisture content of running paper while detecting the angle and magnitude of fiber orientation.

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The Impacts of Technology Transfer on Productivity Growth of Firms based on Malmquist Productivity Index

  • Han, Jaeseung;Kwon, Youngkwan;Lee, Sang-Yong Tom
    • Asia pacific journal of information systems
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    • 제26권4호
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    • pp.542-560
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    • 2016
  • This study determines whether or not firms can achieve high productivity growth through external technology acquisition. It also identifies the key factors affecting adopting firms' productivity growth by employing the Malmquist productivity index (MPI) methodology, which features computational ease, low data dependency, and decomposition of productivity growth into technical efficiency change and technical change. Results showed that the effects of productivity growth arising from technology transfer became stronger over time. Moreover, patent transfer guaranteed firms' productivity growth, but no evidence was found that factors such as age and size could increase productivity. Finally, cultural similarity could be another factor conditioning the effectiveness of technology transfer in the productivity of adopting firms.

A Study on Pilots' Behavior on Decision of Maneuvering Aircraft for Fuel Efficient Flight Operation

  • Yoo, Kwang Eui;Jeon, Seung Joon
    • 한국항공운항학회지
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    • 제27권4호
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    • pp.96-104
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    • 2019
  • The response to climate change of international air transport industry might be initiated by ICAO's CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) which will impact on international airlines' flight operation behavior in the future. Though the airlines' efforts to reduce fuel consumption has been a major issue in economics of aviation industry, the improvement of fuel efficiency in flight operation will have additional impact on their profitability by introducing carbon emission cost. The fuel consumption in flight operation will be somewhat influenced by pilots' technical action for maneuvering aircraft during flight operation. This study will investigate pilots' behavior on decision for tactical aircraft control for mission flight. The data will be collected by the survey through sample pilots asking about their intention and perception on fuel savings during flight operations. The data will be analyzed by AHP process and the study will find out the elements and factors influencing pilots' behavior on technical decision of flight and their weights on fuel saving effects.

모바일 클라우드 서비스 기반 다중 커스터마이제이션 기법 (A Multiple Customization Technique based on Mobile Cloud Service)

  • 예준호;김철진
    • 한국산학기술학회논문지
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    • 제14권9호
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    • pp.4478-4484
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    • 2013
  • 기존 모바일 커스터마이제이션 연구는 단일 디바이스의 서비스를 변경하려는 단일 커스터마이제이션 기법으로 수행되어왔다. 그러나, 변경하려는 모바일 서비스가 다중 디바이스에 일괄적으로 적용되기 위해서는 기존의 단일 커스터마이제이션 기법으로는 미흡하다. 본 논문에서는 모바일 서비스의 흐름제어 데이터를 공유하여 다중 디바이스를 커스터마이제이션하기 위한 기법을 제안 한다. 제안하는 다중 커스터마이제이션 기법은 푸시 서비스와 클라우드 서비스를 기반으로 한다.

제지공정 Short Circulation의 동특성 해석 (Analysis of Dynamics of Short Circulation in Paper Mills)

  • 전준석;여영구;김영곤;강홍
    • 펄프종이기술
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    • 제35권4호
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    • pp.42-47
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    • 2003
  • Analysis of the elements affecting short circulation in highly integrated paper mills and identification of the interactions among these elements are very important tasks to prevent operational perturbations such as web breaks. In the present work a dynamic model for the short circulation is developed to analyze tuning methods for the outputs to follow set points during grade change operations. Steady state operation data are used to investigate dynamic characteristics of responses for input changes.

OBJECT-ORIENTED CLASSIFICATION AND APPLICATIONS IN THE LUCC

  • Yang, Guijun
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.1221-1223
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    • 2003
  • With speediness of economy, the structure of land use has taken lots of change. How can we quickly and exactly obtain detailed land use/cover change information, and then we know land resource amount, quality, distributing and change direction. More and more high resolution satellite systems are under development. So we can make good use of RS data, existed GIS data and GPS data to extract change information and update map. In this paper a fully automated approach for detecting land use/cover change using remote sensing data with object-oriented classification based on GIS data, GPS data is presented (referring to Fig.1). At same time, I realize integrating raster with vector methods of updating the basic land use/land cover map based on 3S technology and this is becoming one of the most important developing direction in 3S application fields; land-use and cover change fields over the world. It has been successful applied in two tasks of The Ministry of Land and Resources P.R.C and taken some of benefit.

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Organizational Self-Assessment for Six Sigma Initiative

  • Park, Young-Taek;Kang, Hyun-Jung
    • International Journal of Quality Innovation
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    • 제6권1호
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    • pp.1-7
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    • 2005
  • Six sigma is much less of a technical program than it is a leadership and cultural change program. Nevertheless, most of literatures on six sigma have mainly focused on technical and tactical aspects. This paper introduces a self-assessment for six sigma initiative in a major Korean software company. The self-assessment gives a valuable clue to how to manage leadership and cultural aspects of six sigma initiative.

주요선진국의 가스기술기준 체제분석 및 제도개선 발전 모형 (Analysis of Safety Decrees for Gas Safety Management System and its Development)

  • 김봉진;강경식
    • 대한안전경영과학회지
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    • 제3권2호
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    • pp.51-63
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    • 2001
  • Korea gas industrial because of received LNG in 1987 was converted by the Gas Safety Management System in relation to city gas, LPG and LNG. Gas accident were caused by treatment problem on the supplier and user, on technical and use management mater, on facilities and goods, and included problem with gas safety connection system. This study is present standard application plan of each department to use planning gas technical standard and gas utilization standard of introduction model than statute for change of self-regulation management system and complicated regulation of examination center and order.

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엑셀과 적산프로그램의 가용성 비교를 통한 설계변경 업무의 효율성 방안 (Efficiency of Design Changes by Comparing the Availability of Excel and the Cost-of-construction Program)

  • 류보현;전상훈
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2021년도 봄 학술논문 발표대회
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    • pp.325-326
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    • 2021
  • Design changes are inevitable areas of work for construction engineers as they occur frequently in the construction site, and are becoming a technical measure of the technical person to the design change. In this study, the purpose is to analyze by comparing the availability of excel and the enscised program during design changes through the case, and to present the efficiency of the the Cost-of-construction Program.

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