• International Journal of Advanced Culture Technology
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• v.8 no.2
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• pp.260-269
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• 2020

The Steam Assisted Gravity Drainage (SAGD) process is an enhanced method to extract oil from bitumen which involves surface and central process facilities. This paper describes the Central Process Facilities (CPF) of SAGD and proposes several retrofit plans to the Heat Exchanger Network (HEN). In this approach, the process integration scheme is applied to estimate the energy saving in HENs, and various cases are modeled in favor of a commercial simulator. Throughout this work, a minimum approach temperature of 10℃ is assumed. The results reveal that, due to the HEN optimization using process integration, the heating and cooling duties can be reduced to 29.68MW and 1.886MW, respectively. Compared with the Husky case, all cases considered in this study indicate a potential reduction of at least 6% in total cost, including investment and operation costs.

• Structural Engineering and Mechanics
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• v.55 no.4
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• pp.815-837
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• 2015

A new family of structure-dependent integration methods is developed to enhance with desired numerical damping. This family method preserves the most important advantage of the structure-dependent integration method, which can integrate unconditional stability and explicit formulation together, and thus it is very computationally efficient. In addition, its numerical damping can be continuously controlled with a parameter. Consequently, it is best suited to solving an inertia-type problem, where the unimportant high frequency responses can be suppressed or even eliminated by the favorable numerical damping while the low frequency modes can be very accurately integrated.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.1599-1602
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• 2013

최근 정보화 산업이 고도화 되어 신속하고 다양한 통계정보에 대한 수요가 급증하고 있다. 그러나 기존 도로보수현황은 수기작성 및 e-Mail에 의한 자료 취합으로 집계의 신속성이 떨어지고, 자료 관리와 정보 제공을 위한 매체가 파일 및 책자로 국한되어 있어 효과적으로 활용되지 못하고 있다. 매년 발간하는 도로보수현황의 신속한 자료 취합, 통계자료의 시의성 확보 등 활용성 제고를 위해 도로보수현황 시스템 구축 연구를 진행하고 있다. 본 논문에서는 도로보수현황의 자료 관리 체계 개선을 바탕으로 WEB 기반의 도로보수현황 시스템 구축에 대해 기술하고자 한다.

• Journal of the Korea Society of Computer and Information
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• v.24 no.7
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• pp.39-44
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• 2019

Data integration technology is one of the key elements in building data warehouses or big data, and is used to combine data from multiple sources and provide an integrated view to users. Traditionally, the performance of data integration uses a handed-code approach or a tool-based approach that utilizes data integration tools such as ETL. There is a debate about which methods are efficient. This study is conducted to give practitioners preparing for a data integration project an insight into how to perform data integration. This paper examines the views of experts on the controversy over the adoption of ETL tools that have been on the agenda of the data integration area for over a decade.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.151-163
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• 2016

This research analyzes the effect of the competitive edge in Information Communication Technology (ICT) on supply chain integration in business processes through a comparative analysis by industry that suggests a way of achieving competitive edge in ICT for effective supply chain integration. Based on the theoretical background, there are two research hypotheses. The first hypothesis is about the effect of a competitive edge in ICT on the supply chain. The second is that the effect of the competitive edge on supply chain integration varies from industry to industry. ICT infrastructure must be acquired in advance in order to attain a competitive edge in ICT to secure corporate competitiveness. Building a competitive edge in ICT itself by methods such as introduction, integration, and application, can directly improve company results. Therefore, it must be utilized strategically for improvement in standards of supply chain integration like information integration, organization integration, and strategy integration. If supply chain integration is accomplished effectively by gaining competitive edge in ICT, company results can be improved. By analyzing the effect of a company's competitive edge in ICT on supply chain integration, and comparing differences in features of each category of businesses, measures for developing a competitive edge in ICT and therefore supply chain integration are presented.

• Journal of the Korea Institute of Military Science and Technology
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• v.6 no.4
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• pp.38-44
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• 2003

In this paper configuration design is viewed as an engineering discipline that plays a key role in the design integration process at early-stage development of a complex and large-scale product. Taking as an instance an aircraft development program that Korean engineers had experienced in Lockheed-Martin company, the process of early-stage configuration design is recapitulated and then a role model of effective design integration activities is presented.

• Journal of applied mathematics & informatics
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• v.7 no.1
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• pp.279-287
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• 2000

A simple estimate of Feynman path-integration with general potential via its new definition is given and found to be very useful. This new method will help find the value of some Feynman path-integrals as precise as one wants.

• Nuclear Engineering and Technology
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• v.53 no.8
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• pp.2427-2444
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• 2021

The lack of plant-side energy storage analysis to support nuclear power plants (NPP), has setup this research endeavor to understand the characteristics and role of specific storage technologies and the integration to an NPP. The paper provides a qualitative review of a wide range of configurations for integrating the energy storage system (ESS) to an operating NPP with pressurized water reactor (PWR). The role of ESS technologies most suitable for large-scale storage are evaluated, including thermal energy storage, compressed gas energy storage, and liquid air energy storage. The methods of integration to the NPP steam cycle are introduced and categorized as electrical, mechanical, and thermal, with a review on developments in the integration of ESS with an operating PWR. By adopting simplified off-design modeling for the steam turbines and heat exchangers, the results show the performance of the PWR steam cycle changes with respect to steam bypass rate for thermal and mechanical storage integration options. Analysis of the integrated system characteristics of proposed concepts for three different ESS suggests that certain storage technologies could support steady operation of an NPP. After having reviewed what have been accomplished through the years, the research team presents a list of possible future works.

• Proceedings of the Korea Database Society Conference
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• 1995.12a
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• pp.3-19
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• 1995

시스템 Technology ★ Server Technology - 운영환경구축 ★ Network 구성설계 - ATM, FDDI, NMS ★ Client/Server시스템 구성별 Bench Marking ★ Windows 메뉴 및 GUI 설계 ★다기능 PC 운영환경 설정 시스템 Technology ★ Data Base Technology - DB Administration - BB Performance Tuning ★ System Integration Technology - Application Integration - System Flow Control - Task Control - Applicational Interface - S/W Down Load 시스템 Technology ★ Memory Optimization ★ IBM/Facom Host API ★ 영상전화 Customizing - Intel Proshare ★ Auto Dialing - CTI Link ★ IC-Card Interface 시스템 Technology ★ Sound 처리 - Voice Mail - 음절 처리 ★ Image 처리 ★도움말 처리 - Hyper Text 시스템 Technology ★ Socket Programming - 긴급메일 - Peer to peer message switching ★ Set Up Programming -Install Shield ★ DB Access Programming - DB-Library ★ TCP/IP Programming(중략)

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2007.04a
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• pp.346-351
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• 2007

As the construction technology is rapidly advancing internationally, the necessity of virtual construction technology development is drastically demanded in the construction industry together with a fusion technology with information technology(IT). The construction technology will be changed as the paradigm of construction technology in the future. The establishment of building structural system in the virtual construction basis is necessary for the integration of construction process, and it will be expected to produce the effect of reduction of construction period and quality improvement through the environment of integration. This study is to present the analysis of the existing process of structural design, the content of research & development as per the building structural system on virtual construction basis and the direction of research.