• Korean Journal of Construction Engineering and Management
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• v.12 no.5
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• pp.23-34
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• 2011

Reliable progress management at construction requires integrated information of cost and schedule, and information is used as a basis for project performance measurement. However, separate handling of cost and schedule information at construction projects makes objective measurement more difficult and decreases management productivity due to additional works for breaking down bill of quantities into corresponding activities. Recently, research related to BIM addresses issues on effective progress management based on BIM with incorporation of daily progress management. Therefore, the objective of this paper is to propose information model for daily progress rate and budgeted cost of work performed by utilizing BTM-based quantity and location information.

• Journal of radiological science and technology
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• v.47 no.3
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• pp.183-195
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• 2024

Additional functional upgrades to the large-area compton camera (LACC) measurement device that can provide characteristics evaluation information (nuclear species and radioactivity) and two-dimensional or three-dimensional distribution imaging information of radioactive materials existing in surface or internal of concrete structures are required in terms of work stability and efficiency in order to apply to actual decommissioning sites such as nuclear power plants or medical cyclotron facilities by using this measurement device. To this purpose, the technology that allows radiation workers to intuitively and visually check the distribution of radioactive materials in advance by matching the two-dimensional distribution imaging information of radioactive materials obtained through the LACC measurement device and visual imaging of the measurement zone (10 m × 5 m) was developed. In addition, the separate system that can automatically adjust the position (height) in units of the measurement area size (0.7 m × 0.3 m × 0.8 m) of the LACC measurement device was developed and the integrated management system for characteristics evaluation information and two-dimensional or three-dimensional distribution imaging information obtained per unit of measurement for radioactive materials was developed. These functional upgrades related to LACC measurement device can improve work efficiency and safety when measuring radioactivity of concrete structures and enable the establishment of appropriate decommissioning strategies using radioactivity measurement information for decommissioning nuclear power plants or medical cyclotron facilities.

• Proceedings of the Korean Society for Information Management Conference
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• 2002.08a
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• pp.43-50
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• 2002

본 연구의 목적은 객관적으로 측정가능한 이용자 중심의 정보검색시스템의 인터페이스 평가항목과 세부평가지표를 도출하는 데 있다. 이를 위하여, 정보검색시스템의 이용자 요구사항과 인터페이스 요소를 분석하여 상관관계를 밝히고, 인터페이스 평가영역에 포함되는 인터페이스 요소와 이용자 요구사항을 파악한다. 국내외 인터페이스 평가모델을 종합하여 인터페이스 평가영역 및 지표를 도출하고 전문가 집단의 설문조사를 통해 타당성과 신뢰성을 검증한 인터페이스 평가지표를 정립하고자 한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.2
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• pp.61-67
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• 2010

In operating estimation system, the river and lake is almost simple monitoring system or independent monitoring system. But the present system has many weak points about the concurrent analysis ability of various information collection. Sensors generating the information is not accurate. Therefore, we have something that can be improved. Although we have the related facilities of the purification plant, forebays and sewage disposal plant, and suffer from the difficulty about lack of system of estimation, management and control. As a result of this paper, monitoring system can observe the water pollution and various water environment of whole country. Also, through the sensors of USN, Zigbee, RFID and middle ware, which can service and construct service platform, we present standard plan of remarkable scalability service platform.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.850-858
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• 2008

최근 공공기관 및 금융권에서는 경쟁력 향상을 위한 정보시스템의 통합으로 프로젝트 규모가 대형화되고 또한, 프로젝트 수가 증가하고 있어 적절한 소프트웨어 프로젝트 관리 방안이 필요하다. 그러나 프로젝트 관리 영역간의 미치는 영향에 대하여 체계적인 연구가 미흡하였다. 따라서 선행 연구를 통하여 프로젝트 관리에 중요한 영역을 도출하였고, 도출된 "범위, 일정, 품질, 인력, 위험"의 각 영역들간의 상호 미치는 영향도의 분석과 각 영역의 진행 상태를 "계획, 실행, 완료" 단계로 구분하여 수행도를 분석하였다. 분석된 영향도와 수행도의 결과를 종합하여 프로젝트 관리 수준을 평가하는 모델을 제시하였다. 본 연구는 IT 분야의 전문가 그룹을 통해 프로젝트 관리 영역들간의 영향 분석이 실증적으로 연구가 이루어졌고, 또한 각 영역의 진행상태를 측정 함으로써 실무적인 측면에서 더욱 체계적이고 균형 잡힌 프로젝트 관리와 감리 수행 시에 활용할 수 있을 것이다.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2005.04a
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• pp.65-67
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• 2005

먹는물 관리법 제19조의2 제2항에서 환경부장관은 지하수 전문기관을 지정하여 먹는샘물제조업자로부터 제출받은 수질측정결과를 지하수 전문기관으로 하여금 분석하도록 하는 먹는샘물 사후관리를 규정하고 있다. 그러므로 지하수 전문기관은 먹는샘물의 수량 수질자료에 대한정보의 수집 분석 및 관리와 먹는샘물 통합관리시스템 개발 및 구축, 먹는샘물 제조업체의 현장시설관리 등 사후관리 기능을 지속적으로 수행해야 한다.

• Journal of The Korean Association of Information Education
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• v.7 no.2
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• pp.199-206
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• 2003

XML is becoming a new developing tool of web technology because of its ability of data management and flexibility in data presentation. So it's well researched that the reusability and integration with learning objects such as text, image, sound, video and plug-in programs of web contents in computer education. But the research for storing, extracting and integrating metadata about learning object was needed prior to implementing online learning system to integrate and manage it. Therefore this study propose a new method of using web service of DBMS for extracting learning object's metadata in database server which located in 3-tier system. To evaluate the efficiency of proposed method, The test server and two DBMSs(MS SQL Server 2000 and Oracle 9i) which have 30 metadata was implemented and the response time of it was measured. The response time of it was short, but in order to using this method the additional programming with SAX/DOM was necessary.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10c
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• pp.325-327
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• 2004

VoIP는 음성 및 데이터 통합 뿐만 아니라 차세대 네트웍 등의 기반이 되는 기술이며, 인터넷전화 / IP Telephony, 화상회의, 메신저 서비스 등 여러 서비스에 활용되고 있다. 이러한 VoIP 서비스 제공시에 가장 중요시되는 부분이 음성품질이며 이를 측정 및 관리하는 기술이 필수적으로 필요하다. 지금까지는 품질측정장비를 가지고 직접 측정하는 것이 전부였으나 본 연구는 IETF의 VoIP 표준 프로토콜인 MGCP중 파라미터 값을 이용하여 ITU-T의 음성품질 기준인 R factor(G.107)를 계산해 내고 중앙에서 모든 단말 및 사용자들의 실제 발생한 통화에 대한 음성품질을 관리할 수 있는 시스템을 설계 및 구현한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.422-424
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• 2010

Recently the car attached many ECUs and entertainment devices to provide the easiness maintenance and driver's convenience. CAN and MOST networks have been used to manage and control those devices in the car. Wireless network also has been established to receive information from external. These days a car navigation system with GPS is being integrated with CAN, MOST and Wireless network. In these circumstances, the car navigation system can have HMI function to integrate and control the car networks' devices. To solve the GPS problems such as positioning errors or losing signals from satellites in the tunnels and urban canyons, this paper designs and implements a method for positioning vehicle by using the sensing data of sensors and Wi-Fi devices based on this integrated environment.

• Journal of the Korean Institute of Gas
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• v.14 no.5
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• pp.13-18
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• 2010

This paper presents the development of an integrated control and safety management system for 9% nickel steel LNG storage tank. The new system added the measuring equipment of pressure, displacement and force compared to the conventional measurement and control system. The measured data has simultaneously been processed by integrating and analyzing with new control equipments and safety management systems. The integrated control and safety management system, which may increase a safety and efficiency of a super-large full containment LNG storage tank, added additional pressure gauges and new displacement/force sensors at the outer side wall and a welding zone of a stiffener and top girder of an inner tank, and the inner side wall of a corner protection tank. The displacement and force sensors may provide failure clues of 9% nickel steel structures such as an inner tank and a corner protection, and a LNG leakage from the inner tank. The conventional leak sensor may not provide proper information on 9% nickel steel tank fracture even though LNG is leaked until the leak detector, which is placed at the insulation area between an inner tank and a corner protection tank, sends a warning signal. Thus, the new integrated control and safety management system is to collect and analyze the temperature, pressure, displacement, force, and LNG density, which are related to the tank system safety and leakage control from the inner tank. The digital data are also measured from control systems such as displacement and force of 9% nickel steel tank safety, LNG level and density, cool-down process, leakage, and pressure controls.