• Journal of Engineering Education Research
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• v.23 no.4
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• pp.66-75
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• 2020

This study was conducted using the literature review and survey research to analyze the operational status and effectiveness of the single-track accredited program, which has been mandatory since 2016. The research targets to achieve the purpose of the study were the nationwide engineering education accreditation system operating colleges, departments, and engineering education innovation centers. Finally, 183 copies were collected from faculty members at 69 colleges and 554 copies at the department level. As a result of the survey, the college recognized more positively about the operation of the single-track accredited program, and more than 50% of respondents said that there were difficulties due to the operation of the system. The contents required were analyzed and presented. Based on this, the engineering education accreditation system, including the single-track accredited program, suggested the direction of support at the government level and the ABEEK level to better settle down in the field of engineering colleges.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.30B no.5
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• pp.73-81
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• 1993

We have developed a system which can analyze the status of signal sent from/received to a signalling service equipment within the fully electronic switching system such as TDX-10. The system has such functions that acquire PCM signal of the preferred channel from the subhighway of the thirth-two channel by which a Universal Signal Tr ansceiver Unit(USTU) is connected with Time Switch Unit (TSU), and then classify the type of signal such as R2MFC/DTMF/CCT/VOICE, and determine the digit. Up to now, we have analyzed the frequency spec trum using the FFT. This paper describes the developement of PCM acquirer which can analyze the signal characteristics by acquiring the PCM signal in SHW(subhighway), and proposes the CZT(Chirp Z-Transform) algorithm. An algorithm which analyzes the acquired signal and determines the signal frequency and the corresponding power spectrum using the CZT is also discussed here.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.9 no.2
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• pp.32-51
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• 1999

The purposes of this study were to review current status and problems of national qualification sys tem in the field of industrial hygiene, focusing on the deficiencies in the regulatory system and the quality of individual professionals including the Industrial Hygiene Management Professional Engineer and the Industrial Hygiene Management Engineer, and to suggest new directions for the industrial hygiene qualification system. In addition, comparable systems adopted in other countires were reviewed.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.1466-1472
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• 2008

To minimize the train operation interruptions and train exchanges, the RF transmission system is proposed. The current control room of the Seoul Metro has information of the train movement through the Total Traffic Control System, but it does not have information of the train itself, rail status, and other facilities' status. When some trouble occurs during train operation, the train crews should report the control room about the trouble and fix it. If the control room has exact information of the trouble, the expert in the control room can help the crews to fix the trouble swiftly and exactly. Since the crews are busy taking care of the trouble, they often miss to report the control room on time. The proposed RF transmission system relays the information of the train to the control room automatically in real time, and makes it possible to provide the passengers good service by reducing the train operation interruptions and train exchanges.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.1315-1323
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• 2008

This paper defines the Safety Management System(SMS) based on the rail safety act and surveys the status of the English rail SMS and International Civil Aviation Organization (ICAO) SMS and OHSAS18001 SMS. Through the investigation of establishment and implementation status of domestic rail operators' SMS, the improvement directions of the current rail SMS are developed. First, to establish the continual improvement system for SMS, the guide which describe detailed continual improvement method for each steps of SMS including management review by CEO shall be established and implemented. Second, to settle the SMS based on the risk management, it is necessary to endeavor for converting the rail operators mind and to establish the supply system of operating model and basic data and to define the requirement precisely and to include in the related guide for the risk management.

• 연구논문집
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• s.28
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• pp.5-12
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• 1998

Test Results and Status of development of the urban transit maglev system (UTM-0l) are reported. Maglev Project Team in KIMM, in cooperation with Hyundai Precision Company and the Korea Electrotechnology Research Institute (KERI). has successfully finished the second stage development project (1995.5-1998.8) and demonstrated a prototype two vehicle consisted urban maglev train operating in the speed range of 50 km/h. In this paper, we report various test results of the UTM-01 system. present status of quo and future prospect, and what have been done so far to improve the performance of the maglev system overall.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.368-369
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• 2018

This paper presents a current status and perspectives of Operation system of SMART-Navigation and LTE-Maritime as major communication infrastructure of SMART-Navigation.

• Smart Structures and Systems
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• v.21 no.2
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• pp.139-149
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• 2018

Understanding the current status of a construction project is necessary to achieve successful on-site management. Real-time information delivery is a major concern for construction industry practitioners in order to expedite decisions and discussions. We propose the use of a first personal view (FPV) system of a quadcopter drone as a tool for monitoring on-site status and communicating between construction participants. The most important function of the drone FPV system is its ability to visually monitor construction site situations in real time. An on-site management system process is developed, verified, and applied to several construction work tasks after determining factors that affect efficient construction management. The proposed system is expected to assist the construction manager in achieving high efficiency.

• Journal of Positioning, Navigation, and Timing
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• v.13 no.1
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• pp.35-44
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• 2024

This investigation primarily focuses on the generational characteristics of satellites utilized in the existing Global Navigation Satellite System (GNSS) and Regional Navigation Satellite System (RNSS), with a central emphasis on comparing the operational status of the latest generation satellites. Variations among satellite generations in physical attributes, energy consumption, and timekeeping are observed, enabling an exploration of the developmental trends over successive generations. Through a comparative analysis of the latest generation satellites, particularly in terms of performance, this study aims to furnish essential insights into the satellites employed within each system. Consequently, it will contribute to a foundational understanding of the past, present, and future GNSS satellites.

• Journal of Korean Library and Information Science Society
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• v.42 no.3
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• pp.351-379
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• 2011

The compensation system for reproducing or interactively transmitting works in libraries has been introduced in 2003. It has passed more than 7 years since this system has been implemented in July 2004. This study investigated current situation of operation on the compensation system for reproducing or interactively transmitting works in libraries. The survey on the effectiveness of the compensation system was conducted to a group of authors and librarians. First, the difference of the effectiveness of the compensation system between a group of authors and librarians was analyzed. In addition, the difference of the effectiveness of the compensation system according to status variable of author group was analyzed. Also the difference of the effectiveness of the compensation system according to status variable of librarian group was analyzed. Finally, this study pointed out the problems of the compensation system and presented the way to improve the problems.