• Title/Summary/Keyword: Network-engine

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The development of a practical pipe auto-routing system in a shipbuilding CAD environment using network optimization

  • Kim, Shin-Hyung;Ruy, Won-Sun;Jang, Beom Seon
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.5 no.3
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    • pp.468-477
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    • 2013
  • An automatic pipe routing system is proposed and implemented. Generally, the pipe routing design as a part of the shipbuilding process requires a considerable number of man hours due to the complexity which comes from physical and operational constraints and the crucial influence on outfitting construction productivity. Therefore, the automation of pipe routing design operations and processes has always been one of the most important goals for improvements in shipbuilding design. The proposed system is applied to a pipe routing design in the engine room space of a commercial ship. The effectiveness of this system is verified as a reasonable form of support for pipe routing design jobs. The automatic routing result of this system can serve as a good basis model in the initial stages of pipe routing design, allowing the designer to reduce their design lead time significantly. As a result, the design productivity overall can be improved with this automatic pipe routing system.

The Remote HMI System Control Using the Transformed Successive State Splitting Algorithm (변형된 상태분할 알고리즘을 이용한 원격 HMI 시스템 제어)

  • Lee, Jong-Woock;Lee, Jeong-Bae;Hwang, Yeong-Seop;Nam, Ji-Eun
    • Convergence Security Journal
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    • v.8 no.4
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    • pp.135-143
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    • 2008
  • Currently, The HMI system is being used on the network is limited in the ability. In this paper, an Industrial HMI applied the transformed state splitting algorithm. this study suggests by applying a transformed the Successive state splitting algorithm, for the modeling in the questions of the expected data. So, you can save time and reliable and precise as high as 98.15 percent repregented recognition rate. HMI system applied to the voice of industrial equipment the man can not act directly in the industry environment was able to drive devices. Optimize the performance of the engine was the voice of HMI system.

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A Study for the Measurement of Global Loads on Ship Structure Using Fiber Optic Sensors (광섬유 센서를 이용한 선체 구조의 Global 하중 추정에 관한 연구)

  • Kim, Myung-Hyun;Kim, Young-Jae;Kang, Sung-Won;Oh, Min-Cheol
    • Journal of the Society of Naval Architects of Korea
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    • v.45 no.2
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    • pp.144-150
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    • 2008
  • Ships and offshore structures are exposed to wave and engine excitation loadings during navigation and cargo/ballasting operations. These excessive loads may cause damages to hull and may result loss of life the ship. Therefore, it is important to develop a system that allow accurate measurements of global hull loads. The objective of the study is developing a fiber optic monitoring system that is capable of monitoring, recording and warning of the vessel performance. A method for measurement of global loads on a vessel, using strain measurements from a network of fiber optic strain sensors and extensive finite-element analyses(FEA) with idealistic load cases, is presented. The method has been successfully validated on the idealized ship structure model with strain sensors.

A study on the planing of game scenario (게임시나리오 기획에 관한 연구)

  • Lee, Jae-Hong
    • Journal of Korea Game Society
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    • v.3 no.2
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    • pp.12-18
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    • 2003
  • A good game comes from an original and unique scenario. Game development must precede with the game's scenario because this is where the contents of the game are expressed. Scenario planing brings the result of the game scenario. scenario planning is the draft for game development. The circumstances of gaming today, from the company which produce games to the academic world which educate game development, do not have planning for their game scenarios. A habit that many Korean game developers have is to just insert a rough scenario into a game or even worse no proper form for one at all. The Purpose of this book is to simply search for a scenario planning method and suggest the contents for game planning. paper, we researched technical considerations in initial game software planning, focusing on platform, game engine, game service, network infrastructure.

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Study on Low-Latency overcome of Stock Trading system in Cloud (클라우드 환경에서 주식 체결 시스템의 저지연 극복에 관한 연구)

  • Kim, Keun-Heui;Moon, Seok-Jae;Yoon, Chang-Pyo;Lee, Dae-Sung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.18 no.11
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    • pp.2658-2663
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    • 2014
  • To minimize low latency and improve the processing speed of the stock trading system, various technologies have been introduced. However, expensive network equipment has limitation for improving speed of trading system. Also, it is true that there is not much advantage by introducing those kind of systems. In this paper, we propose a low-Latency SPT(Safe Proper Time) scheme for overcoming the stock trading system in a cloud. The proposed method minimizes the CPI in order to reduce the CPU overhead that is based on the understanding of the kernel. and this approach satisfies the data timeliness.

A Design of Intermediary based Framework for Improving Mobile Web-Service Performance (모바일 웹서비스의 성능 향상을 위한 인터미디어리 기반의 프레임워크 설계)

  • Kim, Yong-Tae;Jeong, Yoon-Su;Park, Gil-Cheol
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.12 no.12
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    • pp.2277-2285
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    • 2008
  • Nowadays, in many mobile device environment, while the demand for using web service is increasing, there are many limitations on web-browsing in wireless network because of various restrictions and problems in reality. We need improvement in function of mobile web service engine because we can't be satisfied with the multiple demands by using previous capacity of web server in rapidly changing web environment. Therefore, this paper improves the service environment for web service users by introducing intermediary technology to web service. This paper embodies intermediary based web service framework for improvement of the function of mobile web service and for the interoperability of mobile device and web server.

Design and implementation of port scan detection improvement and algorithm connected with attack detection in IDS (침입탐지시스템에서 포트 스캔 탐지 개선 및 공격 탐지와 연계한 알고리즘 설계 및 구현)

  • Park Seong-Chul;Ko Han-Seok
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.16 no.3
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    • pp.65-76
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    • 2006
  • This paper deals with an effective algerian aimed at improving the port scan detection in an intrusion detection system (IDS). In particular, a detection correlation algerian is proposed to maximize the detection capability in the network-based IDS whereby the 'misuse' is flagged for analysis to establish intrusion profile in relation to the overall port scan detection process. In addition, we establish an appropriate system maintenance policy for port scan detection as preprocessor for improved port scan in IDS, thereby achieving minimum false positive in the misuse detection engine while enhancing the system performance.

How Research in Sustainable Energy Supply Chain Distribution Is Evolving: Bibliometric Review

  • KIPROP NGETICH, Brian;NURYAKIN, Nuryakin;QAMARI, Ika Nurul
    • Journal of Distribution Science
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    • v.20 no.7
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    • pp.47-56
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    • 2022
  • Purpose: As the need to transition into the distribution of cleaner energy has garnered corporate and scholarly interests, this study aims to track the research trends in sustainable energy supply chains for five years before 2021. Research methodology: This study was conducted by a bibliometric literature review and analysis to map the field's evolution between 2016 and 2020. Out of an initial title search result of 2,484 papers from the Scopus engine, filtering led to 180 documents obtained. The data was exported in excel format (CSV) to VOSviewer software to generate and analyze network visualization of sustainable energy supply chain trends. Results: The results revealed China's the highest publishing country, with 36 research papers. The Journal of Cleaner Production was the top publishing source, with 22 papers per year. These findings showed five clusters formed in the bibliographic coupling of countries. Circular Economy and Green Supply Chain Management represent the current hot topics. Research gaps identified in the field included limited cross-industry testing and modifying sustainable supply chain models. Conclusion: This paper contributes to the sustainability literature on supply chains by providing an overview of trends and research directions for scholars' and practitioners' consideration in future research.

Analysis of Energy Consumption Efficiency for a Hybrid Electric Vehicle According to the Application of LPG Fuel in WLTC Mode (WLTC 모드에서의 LPG 연료 적용에 따른 하이브리드 자동차 에너지소비효율 분석)

  • Jun Woo, Jeong;Seungchul, Woo;Seokjoo, Kwon;Se-Doo, Oh;Youngho, Seo;Kihyung, Lee
    • Journal of ILASS-Korea
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    • v.27 no.4
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    • pp.195-202
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    • 2022
  • Recently, the global automobile market is rapidly changing from internal combustion engine vehicles to eco-friendly vehicles including electric vehicles. Among eco-friendly vehicles, LPG vehicles are low in fine dust and are suggested as a realistic way to replace diesel vehicles. In addition, it is more economical than gasoline in its class, showing a cost-saving effect. In Korea, the business of converting gasoline into LPG is active. Research is being conducted to apply this to hybrid vehicles. In this study, the difference in energy consumption efficiency was analyzed when LPG fuel was applied by selecting a 2-liter GDI hybrid electric vehicle. The operation of the hybrid system according to various driving characteristics was confirmed by selecting the WLTC mode. As a result, it was confirmed that the BSFC was about 5% lower than that of gasoline fuel when using LPG fuel. This is due to the active operation of the motor while driving. Optimization is required as battery consumption increases from an energy perspective.

CONSTRUCTION BUSINESS PROCESS AUTOMATION USING WORKFLOW TECHNOLOGY

  • Dong-Eun Lee
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.569-574
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    • 2005
  • This paper presents the core technology of Construction Business Process Automation to model and automate construction business processes. Business Process Reengineering (BPR) and Automation (BPA) have been recognized as one of the important aspects in construction business management. However, BPR requires a lot of efforts to identify, document, implement, execute, maintain, and keep track thousands of business processes to deliver a project. Moreover, existing BPA technologies used in existing Enterprise Resource Planning (ERP) systems do not lend themselves to effective scalability for construction business process management. Application of Workflow and Object Technologies would be quite effective in implementing a scalable enterprise application for construction community. This paper present the technologies and methodologies for automating construction business processes by addressing how: 1) Automated construction management tasks are developed as software components, 2) The process modeling is facilitated by dragging-and dropping task components in a network, 3) Raising business requests and instantiating corresponding process instances are delivered, and 4) Business process instances are executed by using workflow technology based on real-time simulation engine. This paper presents how the construction business process automation is achieved by using equipment reservation and cancellation processes simplified intentionally.

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