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  1. No Access

    Article

    Development of Cam Ring Gear Parts of Large Diameter for Truck Clutch Using Hot–Cold Complex Forging Technology of Small Bar

    Hot forging is a processing of plastic deformation for the metal at recrystallization temperature or higher. It is possible to decrease the flow stress and energy required to form the material at elevated temp...

    Dong-Hwan Park, Hyuk-Dong Kwon in International Journal of Precision Enginee… (2019)

  2. No Access

    Article

    Development of automobile engine mounting parts using hot-cold complex forging technology

    Main advantages of cold forging are improvement of mechanical properties, excellent dimensional accuracy, and surface quality. Hot forging is a processing of plastic deformation for the metal at recrystallizat...

    Dong-Hwan Park, Hyuk-Hong Kwon in International Journal of Precision Enginee… (2016)

  3. No Access

    Article

    Development of warm forming parts for automotive body dash panel using AZ31B magnesium alloy sheets

    According to current development trends for automotive parts, light-weight is a key issue in improving fuel efficiency and CO2 reduction. Compared to steel and aluminum, magnesium has a relatively low specific gr...

    Dong-Hwan Park, Hyuk-Hong Kwon in International Journal of Precision Enginee… (2015)

  4. No Access

    Chapter and Conference Paper

    Implementation of Load Management Application System in Energy Management Service

    As the Smart grid is intelligent power grid, combining information Technology to the existing power grid. Electricity suppliers and consumers exchange real-time information to two-way and is a next-generation ...

    Taekyeong Kang, Hyungkyu Lee, Dong-Hwan Park in Mobile, Ubiquitous, and Intelligent Comput… (2014)

  5. No Access

    Chapter and Conference Paper

    Creation Mechanism for Access Group Based on User Privacy Policy-Based Protection

    Smart grid is the next-generation intelligent power network which optimizes energy efficiency through the mutual real time exchange of information between power supplier and consumer through the integration of...

    Taekyeong Kang, Hyungkyu Lee, Dong-Hwan Park in Mobile, Ubiquitous, and Intelligent Comput… (2014)

  6. No Access

    Chapter and Conference Paper

    Analysis of Open Interface Function in USN Service Middleware System

    Rather than the USN applications specialized for individual sensor networks, therefore, this paper proposes an open application interface of USN Service Middleware Platform that provides common functions for t...

    Yilip Kim, Dong-Hwan Park, Hyo-Chan Bang in Advances in Computer Science and its Appli… (2014)

  7. No Access

    Chapter and Conference Paper

    Development of Open Service Interface’s Instructional Design Model in USN Middleware Platform Environment

    This paper contains interface definition provided by the USN service middleware platform, which intents to eliminate the sensor network dependency of USN services and to provide common functions in gathering a...

    Jeongyeun Kim, Dong-Hwan Park, Hyo-Chan Bang in Advances in Computer Science and its Appli… (2014)

  8. No Access

    Chapter and Conference Paper

    A Study of Fire Refuge Guide Simulator Based on Sensor Networks

    Recently, fire accidents in large buildings usually cause in tragic consequences. Many buildings are currently equipped with modern fire detection systems for preventing such accidents, but these support no cl...

    Jun-Pill Boo, Sang-Chul Kim, Dong-Hwan Park, Hyo-Chan Bang in Grid and Pervasive Computing (2013)

  9. No Access

    Chapter and Conference Paper

    A Semantic Sensing Information Representation for Bird Ecology

    Birds have become an increasing concern for ecological preservation and safety. This paper proposes architecture of semantic sensing information for bird acoustic data representation in bird ecological environ...

    Rajani Reddy Gorrepati, Dong-Hwan Park in Embedded and Multimedia Computing Technolo… (2012)

  10. No Access

    Chapter and Conference Paper

    A Hierarchical Architecture for Semantic Sensing Information Representation

    Wireless sensor networks are used in various applications in several domains for measuring and determining physical phenomena and natural events. Wireless sensor networks can support to observe characteristics...

    Rajani Reddy Gorrepati, Hyeon Park, Dong-Hwan Park in Future Information Technology (2011)

  11. No Access

    Article

    Effects of punch load for elliptical deep drawing product of automotive parts

    Deep drawing process, one of sheet metal forming methods, is very useful in industrial field because of its efficiency. The production of optimal products using this process is dependent on the process variabl...

    Dong Hwan Park, Prasad K. D. V. Yarlagadda in The International Journal of Advanced Manu… (2008)

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    Chapter and Conference Paper

    A Performance Analysis of Integrated Social-Sensor Networking Service with USN

    For performance analysis of integrated social-sensor networking service, a unified approach in a unified web service was studied. As a convenient and usable mobile web service for unified social-sensor network...

    Yung Bok Kim, Jae Gak Hwang, Dong Hwan Park in Innovations and Advanced Techniques in Sys… (2008)